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overflow: hidden; text-overflow: ellipsis; -webkit-line-clamp: 3; -webkit-box-orient: vertical; }</style><div class="col-xs-12 clearfix"><div class="u-floatLeft"><h1 class="PageHeader-title u-m0x u-fs30">EPR, ESR</h1><div class="u-tcGrayDark">78 Followers</div><div class="u-tcGrayDark u-mt2x">Recent papers in <b>EPR, ESR</b></div></div></div></div></div></div><div class="TabbedNavigation"><div class="container"><div class="row"><div class="col-xs-12 clearfix"><ul class="nav u-m0x u-p0x list-inline u-displayFlex"><li class="active"><a href="https://www.academia.edu/Documents/in/EPR_ESR">Top Papers</a></li><li><a href="https://www.academia.edu/Documents/in/EPR_ESR/MostCited">Most Cited Papers</a></li><li><a href="https://www.academia.edu/Documents/in/EPR_ESR/MostDownloaded">Most Downloaded Papers</a></li><li><a href="https://www.academia.edu/Documents/in/EPR_ESR/MostRecent">Newest Papers</a></li><li><a class="" href="https://www.academia.edu/People/EPR_ESR">People</a></li></ul></div><style type="text/css">ul.nav{flex-direction:row}@media(max-width: 567px){ul.nav{flex-direction:column}.TabbedNavigation li{max-width:100%}.TabbedNavigation li.active{background-color:var(--background-grey, #dddde2)}.TabbedNavigation li.active:before,.TabbedNavigation li.active:after{display:none}}</style></div></div></div><div class="container"><div class="row"><div class="col-xs-12"><div class="u-displayFlex"><div class="u-flexGrow1"><div class="works"><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_2498143" data-work_id="2498143" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/2498143/EPR_studies_of_M_CO_5_radicals_M_chromium_molybdenum_tungsten_trapped_in_single_crystals_of_PPN_HM_CO_5">EPR studies of M(CO)5- radicals (M = chromium, molybdenum, tungsten) trapped in single crystals of PPN+HM(CO)5</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">mercury(I1) trifluoroacetate, 13257-51-7. Supplementary Material Available: Listings of thermal parameters for 4a and 5a (1 page); listings of observed and calculated structure factors (25 pages). Ordering information is given on any... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_2498143" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">mercury(I1) trifluoroacetate, 13257-51-7. Supplementary Material Available: Listings of thermal parameters for 4a and 5a (1 page); listings of observed and calculated structure factors (25 pages). Ordering information is given on any current masthead page. 7-Irradiated single crystals of PPN+HM(C0)5-(M = Cr, Mo, W) exhibit persistent anisotropic EPR spectra that are assigned to the free radical (S = '/*) anion metal carbonyls M(CO)5-. Measurements of the g and metal hyperfine interaction anisotropies in crystallographically aligned single-crystal specimens at 77 K are consistent with square-pyramidal geometries for the radicals and unpaired spin densities largely confined to metal d,z atomic orbitals. A full structure of the W-containing host crystal was established by X-ray diffractometry (space group P21/c, a = 13.302 A, b = 20.041 (15) A, c = 16.074 (7) A, p = 102.56 (S)' , 2 = 4), and unit cell parameters were measured for the isomorphous Cr (a = 13.2413 (22) A, b = 20.1480 (24) A, c = 15.9510 (20) A, p = 102.33 (12)') and Mo (a = 13.266 (18) A, b = 20.09 (5) A, c = 16.07 (8) A, p = 102.57 (8)') hosts. In spite of a poor structural refinement (R = 0.131, attributed to</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/2498143" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="713c8ab88f4807362ffa3af4f0846966" rel="nofollow" data-download="{"attachment_id":50598508,"asset_id":2498143,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/50598508/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="3251167" href="https://epa.academia.edu/AntonyWilliams">Antony J Williams</a><script data-card-contents-for-user="3251167" type="text/json">{"id":3251167,"first_name":"Antony","last_name":"Williams","domain_name":"epa","page_name":"AntonyWilliams","display_name":"Antony J Williams","profile_url":"https://epa.academia.edu/AntonyWilliams?f_ri=21731","photo":"https://0.academia-photos.com/3251167/1074107/6206441/s65_antony.williams.jpg"}</script></span></span></li><li class="js-paper-rank-work_2498143 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="2498143"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 2498143, container: ".js-paper-rank-work_2498143", }); });</script></li><li class="js-percentile-work_2498143 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 2498143; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_2498143"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_2498143 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="2498143"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 2498143; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=2498143]").text(description); $(".js-view-count-work_2498143").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_2498143").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="2498143"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">2</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="21731" rel="nofollow" href="https://www.academia.edu/Documents/in/EPR_ESR">EPR, ESR</a>, <script data-card-contents-for-ri="21731" type="text/json">{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="727004" rel="nofollow" href="https://www.academia.edu/Documents/in/Solid_state_EPR">Solid state EPR</a><script data-card-contents-for-ri="727004" type="text/json">{"id":727004,"name":"Solid state EPR","url":"https://www.academia.edu/Documents/in/Solid_state_EPR?f_ri=21731","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=2498143]'), work: {"id":2498143,"title":"EPR studies of M(CO)5- radicals (M = chromium, molybdenum, tungsten) trapped in single crystals of PPN+HM(CO)5","created_at":"2013-02-01T05:11:56.034-08:00","url":"https://www.academia.edu/2498143/EPR_studies_of_M_CO_5_radicals_M_chromium_molybdenum_tungsten_trapped_in_single_crystals_of_PPN_HM_CO_5?f_ri=21731","dom_id":"work_2498143","summary":"mercury(I1) trifluoroacetate, 13257-51-7. Supplementary Material Available: Listings of thermal parameters for 4a and 5a (1 page); listings of observed and calculated structure factors (25 pages). Ordering information is given on any current masthead page. 7-Irradiated single crystals of PPN+HM(C0)5-(M = Cr, Mo, W) exhibit persistent anisotropic EPR spectra that are assigned to the free radical (S = '/*) anion metal carbonyls M(CO)5-. Measurements of the g and metal hyperfine interaction anisotropies in crystallographically aligned single-crystal specimens at 77 K are consistent with square-pyramidal geometries for the radicals and unpaired spin densities largely confined to metal d,z atomic orbitals. A full structure of the W-containing host crystal was established by X-ray diffractometry (space group P21/c, a = 13.302 A, b = 20.041 (15) A, c = 16.074 (7) A, p = 102.56 (S)' , 2 = 4), and unit cell parameters were measured for the isomorphous Cr (a = 13.2413 (22) A, b = 20.1480 (24) A, c = 15.9510 (20) A, p = 102.33 (12)') and Mo (a = 13.266 (18) A, b = 20.09 (5) A, c = 16.07 (8) A, p = 102.57 (8)') hosts. In spite of a poor structural refinement (R = 0.131, attributed to","downloadable_attachments":[{"id":50598508,"asset_id":2498143,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":3251167,"first_name":"Antony","last_name":"Williams","domain_name":"epa","page_name":"AntonyWilliams","display_name":"Antony J Williams","profile_url":"https://epa.academia.edu/AntonyWilliams?f_ri=21731","photo":"https://0.academia-photos.com/3251167/1074107/6206441/s65_antony.williams.jpg"}],"research_interests":[{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true},{"id":727004,"name":"Solid state EPR","url":"https://www.academia.edu/Documents/in/Solid_state_EPR?f_ri=21731","nofollow":true}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_9230250 coauthored" data-work_id="9230250" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/9230250/The_defensin_lipid_interaction_insights_on_the_binding_states_of_the_human_antimicrobial_peptide_HNP_1_to_model_bacterial_membranes">The defensin-lipid interaction: insights on the binding states of the human antimicrobial peptide HNP-1 to model bacterial membranes</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Antimicrobial peptides are an important component of innate immunity and have generated considerable interest as a new potential class of natural antibiotics. The biological activity of antimicrobial peptides is strongly influenced by... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_9230250" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Antimicrobial peptides are an important component of innate immunity and have generated considerable<br />interest as a new potential class of natural antibiotics. The biological activity of antimicrobial peptides<br />is strongly influenced by peptide–membrane interactions. Human Neutrophil Peptide 1 (HNP-1) is a 30<br />aminoacid peptide, belonging to the class of α-defensins. Many biophysical studies have been performed<br />on this peptide to define its mechanism of action. Combining spectroscopic and thermodynamic analysis,<br />insights on the interaction of the α-defensin with POPE:POPG:CL negative charged bilayers are given. The<br />binding states of the peptide below and above the threshold concentration have been analyzed showing<br />that the interaction with lipid bilayers is dependent by peptide concentration. These novel results that indicate<br />how affinity and biological activities of natural antibiotics are depending by their concentration, might<br />open new way of investigation of the antimicrobial mode of action.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/9230250" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="cb0bc2082bfdfa0f537a0ad18a3dfee0" rel="nofollow" data-download="{"attachment_id":35503471,"asset_id":9230250,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/35503471/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="984818" href="https://iastate.academia.edu/SaraPistolesi">Sara Pistolesi</a><script data-card-contents-for-user="984818" type="text/json">{"id":984818,"first_name":"Sara","last_name":"Pistolesi","domain_name":"iastate","page_name":"SaraPistolesi","display_name":"Sara Pistolesi","profile_url":"https://iastate.academia.edu/SaraPistolesi?f_ri=21731","photo":"/images/s65_no_pic.png"}</script></span></span><span class="u-displayInlineBlock InlineList-item-text"> and <span class="u-textDecorationUnderline u-clickable InlineList-item-text js-work-more-authors-9230250">+1</span><div class="hidden js-additional-users-9230250"><div><span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a href="https://independent.academia.edu/EBalducci">Enrico Balducci</a></span></div></div></span><script>(function(){ var popoverSettings = { el: $('.js-work-more-authors-9230250'), placement: 'bottom', hide_delay: 200, html: true, content: function(){ return $('.js-additional-users-9230250').html(); } } new HoverPopover(popoverSettings); })();</script></li><li class="js-paper-rank-work_9230250 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="9230250"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 9230250, container: ".js-paper-rank-work_9230250", }); });</script></li><li class="js-percentile-work_9230250 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 9230250; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_9230250"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_9230250 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="9230250"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 9230250; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=9230250]").text(description); $(".js-view-count-work_9230250").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_9230250").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="9230250"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">2</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="21731" rel="nofollow" href="https://www.academia.edu/Documents/in/EPR_ESR">EPR, ESR</a>, <script data-card-contents-for-ri="21731" type="text/json">{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="70551" rel="nofollow" href="https://www.academia.edu/Documents/in/Defensins">Defensins</a><script data-card-contents-for-ri="70551" type="text/json">{"id":70551,"name":"Defensins","url":"https://www.academia.edu/Documents/in/Defensins?f_ri=21731","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=9230250]'), work: {"id":9230250,"title":"The defensin-lipid interaction: insights on the binding states of the human antimicrobial peptide HNP-1 to model bacterial membranes","created_at":"2014-11-10T11:31:06.087-08:00","url":"https://www.academia.edu/9230250/The_defensin_lipid_interaction_insights_on_the_binding_states_of_the_human_antimicrobial_peptide_HNP_1_to_model_bacterial_membranes?f_ri=21731","dom_id":"work_9230250","summary":"Antimicrobial peptides are an important component of innate immunity and have generated considerable\ninterest as a new potential class of natural antibiotics. The biological activity of antimicrobial peptides\nis strongly influenced by peptide–membrane interactions. Human Neutrophil Peptide 1 (HNP-1) is a 30\naminoacid peptide, belonging to the class of α-defensins. Many biophysical studies have been performed\non this peptide to define its mechanism of action. Combining spectroscopic and thermodynamic analysis,\ninsights on the interaction of the α-defensin with POPE:POPG:CL negative charged bilayers are given. The\nbinding states of the peptide below and above the threshold concentration have been analyzed showing\nthat the interaction with lipid bilayers is dependent by peptide concentration. These novel results that indicate\nhow affinity and biological activities of natural antibiotics are depending by their concentration, might\nopen new way of investigation of the antimicrobial mode of action.","downloadable_attachments":[{"id":35503471,"asset_id":9230250,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":984818,"first_name":"Sara","last_name":"Pistolesi","domain_name":"iastate","page_name":"SaraPistolesi","display_name":"Sara Pistolesi","profile_url":"https://iastate.academia.edu/SaraPistolesi?f_ri=21731","photo":"/images/s65_no_pic.png"},{"id":58022744,"first_name":"Enrico","last_name":"Balducci","domain_name":"independent","page_name":"EBalducci","display_name":"Enrico Balducci","profile_url":"https://independent.academia.edu/EBalducci?f_ri=21731","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true},{"id":70551,"name":"Defensins","url":"https://www.academia.edu/Documents/in/Defensins?f_ri=21731","nofollow":true}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_612605" data-work_id="612605" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/612605/The_Computed_EPR_Parameters_of_the_Tryptophan_Radical_the_Hyperfine_Interaction_Constants">The Computed EPR Parameters of the Tryptophan Radical: the Hyperfine Interaction Constants</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Protein bound tryptophan free radicals play an important role in many enzymatic reactions. Identifying the sites of free radical formation is essential for understanding the mechanism of catalysis. This work reports and analyses... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_612605" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Protein bound tryptophan free radicals play an important role in many enzymatic reactions. Identifying the sites of free radical formation is essential for understanding the mechanism of catalysis. This work reports and analyses previously calculated electron paramagnetic resonance parameters of the tryptophan neutral radical focusing on the hyperfine interaction constants in relation to Mulliken atomic spin density distributions. This is investigated at a spectrum of twelve tryptophan indole ring rotation angles along with variable strengths of hydrogen bonding to the indole nitrogen atom. The hyperfine interaction constants are computed by density functional theory calculation at the B3LYP functional level for a tryptophan radical of optimised geometry. The hyperfine interaction depends on the indole ring rotation angle. This effect is greatly pronounced for the methylene protons of the Cα atom, due to the high unpaired electron spin density on the adjacent C3. The maximal hyperfine interaction of the methylene protons occurs at angles where the protons are perpendicular to the plane of the ring. The hyperfine interaction of the nitrogen atom is most significantly affected by the change of hydrogen bonding strength where a stronger hydrogen bonding strength reduces the hyperfine interaction on the ring atoms. These findings provide a basis for a new method of determining the location of a protein based tryptophan radical in proteins and enzymes. These data may well be used to derive a method of calculating electron paramagnetic resonance parameters of tryptophan radicals with sufficient accuracy to accurately simulate experimental electron paramagnetic resonance spectra.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/612605" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="066e47b784d19162b71a95d246bb8303" rel="nofollow" data-download="{"attachment_id":3274535,"asset_id":612605,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/3274535/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="325777" href="https://qmul.academia.edu/MarcusDawson">Marcus Dawson</a><script data-card-contents-for-user="325777" type="text/json">{"id":325777,"first_name":"Marcus","last_name":"Dawson","domain_name":"qmul","page_name":"MarcusDawson","display_name":"Marcus Dawson","profile_url":"https://qmul.academia.edu/MarcusDawson?f_ri=21731","photo":"https://0.academia-photos.com/325777/136178/310607/s65_marcus.dawson.jpg"}</script></span></span></li><li class="js-paper-rank-work_612605 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="612605"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 612605, container: ".js-paper-rank-work_612605", }); 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$(".js-view-count[data-work-id=612605]").text(description); $(".js-view-count-work_612605").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_612605").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="612605"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">3</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="528" rel="nofollow" href="https://www.academia.edu/Documents/in/Computational_Chemistry">Computational Chemistry</a>, <script data-card-contents-for-ri="528" type="text/json">{"id":528,"name":"Computational Chemistry","url":"https://www.academia.edu/Documents/in/Computational_Chemistry?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="2425" rel="nofollow" href="https://www.academia.edu/Documents/in/Free_Radicals">Free Radicals</a>, <script data-card-contents-for-ri="2425" type="text/json">{"id":2425,"name":"Free Radicals","url":"https://www.academia.edu/Documents/in/Free_Radicals?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="21731" rel="nofollow" href="https://www.academia.edu/Documents/in/EPR_ESR">EPR, ESR</a><script data-card-contents-for-ri="21731" type="text/json">{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=612605]'), work: {"id":612605,"title":"The Computed EPR Parameters of the Tryptophan Radical: the Hyperfine Interaction Constants","created_at":"2011-05-24T08:08:26.985-07:00","url":"https://www.academia.edu/612605/The_Computed_EPR_Parameters_of_the_Tryptophan_Radical_the_Hyperfine_Interaction_Constants?f_ri=21731","dom_id":"work_612605","summary":"Protein bound tryptophan free radicals play an important role in many enzymatic reactions. Identifying the sites of free radical formation is essential for understanding the mechanism of catalysis. This work reports and analyses previously calculated electron paramagnetic resonance parameters of the tryptophan neutral radical focusing on the hyperfine interaction constants in relation to Mulliken atomic spin density distributions. This is investigated at a spectrum of twelve tryptophan indole ring rotation angles along with variable strengths of hydrogen bonding to the indole nitrogen atom. The hyperfine interaction constants are computed by density functional theory calculation at the B3LYP functional level for a tryptophan radical of optimised geometry. The hyperfine interaction depends on the indole ring rotation angle. This effect is greatly pronounced for the methylene protons of the Cα atom, due to the high unpaired electron spin density on the adjacent C3. The maximal hyperfine interaction of the methylene protons occurs at angles where the protons are perpendicular to the plane of the ring. The hyperfine interaction of the nitrogen atom is most significantly affected by the change of hydrogen bonding strength where a stronger hydrogen bonding strength reduces the hyperfine interaction on the ring atoms. These findings provide a basis for a new method of determining the location of a protein based tryptophan radical in proteins and enzymes. These data may well be used to derive a method of calculating electron paramagnetic resonance parameters of tryptophan radicals with sufficient accuracy to accurately simulate experimental electron paramagnetic resonance spectra.","downloadable_attachments":[{"id":3274535,"asset_id":612605,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":325777,"first_name":"Marcus","last_name":"Dawson","domain_name":"qmul","page_name":"MarcusDawson","display_name":"Marcus Dawson","profile_url":"https://qmul.academia.edu/MarcusDawson?f_ri=21731","photo":"https://0.academia-photos.com/325777/136178/310607/s65_marcus.dawson.jpg"}],"research_interests":[{"id":528,"name":"Computational Chemistry","url":"https://www.academia.edu/Documents/in/Computational_Chemistry?f_ri=21731","nofollow":true},{"id":2425,"name":"Free Radicals","url":"https://www.academia.edu/Documents/in/Free_Radicals?f_ri=21731","nofollow":true},{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_11063219" data-work_id="11063219" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/11063219/%EC%BD%98%EB%8D%B4%EC%84%9C_ESR_%EA%B8%B0%EC%88%A0%EC%9E%90%EB%A3%8C_20150225_%EC%9A%B0%EC%9D%BC%EC%9E%AC_">콘덴서 ESR 기술자료(20150225 우일재)</a></div></div><div class="u-pb4x u-mt3x"></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/11063219" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="851a7154988d38ace986da5a70b43c23" rel="nofollow" data-download="{"attachment_id":36761992,"asset_id":11063219,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/36761992/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="26749946" href="https://independent.academia.edu/IlJaeWoo">Il Jae Woo</a><script data-card-contents-for-user="26749946" type="text/json">{"id":26749946,"first_name":"Il Jae","last_name":"Woo","domain_name":"independent","page_name":"IlJaeWoo","display_name":"Il Jae Woo","profile_url":"https://independent.academia.edu/IlJaeWoo?f_ri=21731","photo":"https://0.academia-photos.com/26749946/8372842/9362256/s65_il_jae.woo.jpg_oh_f32e061ca6dc2ecee6e13229a9b82803_oe_559e5dcb___gda___1437143926_0704c51a4ac767c0c0c888c4cb97658b"}</script></span></span></li><li class="js-paper-rank-work_11063219 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="11063219"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 11063219, container: ".js-paper-rank-work_11063219", }); 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Data were collected through planning, implementation and maintaining rural water supplies have always been considered there responsibility of the central government and... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_36689374" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">— The study examine water supply schemes in Yeola taluka (Nashik). Data were collected through planning, implementation and maintaining rural water supplies have always been considered there responsibility of the central government and external support agencies. The study therefore recommended some management strategies in order to improve the sustainability of water schemes in the study area by designing the economical rural multi village water supply scheme.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/36689374" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="21b0559d5679df80ce184b9ae20ec84b" rel="nofollow" data-download="{"attachment_id":56627220,"asset_id":36689374,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/56627220/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="8163309" href="https://independent.academia.edu/IJSRD">IJSRD - International Journal for Scientific Research and Development</a><script data-card-contents-for-user="8163309" type="text/json">{"id":8163309,"first_name":"IJSRD","last_name":"International Journal for Scientific Research and Development","domain_name":"independent","page_name":"IJSRD","display_name":"IJSRD - International Journal for Scientific Research and Development","profile_url":"https://independent.academia.edu/IJSRD?f_ri=21731","photo":"https://0.academia-photos.com/8163309/3008173/12091840/s65_ijsrd.international_journal_for_scientific_research_and_development.jpg"}</script></span></span><span class="u-displayInlineBlock InlineList-item-text"> and <span class="u-textDecorationUnderline u-clickable InlineList-item-text js-work-more-authors-36689374">+1</span><div class="hidden js-additional-users-36689374"><div><span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a href="https://independent.academia.edu/BhabadDhanashriSudhakar">Bhabad Dhanashri Sudhakar</a></span></div></div></span><script>(function(){ var popoverSettings = { el: $('.js-work-more-authors-36689374'), placement: 'bottom', hide_delay: 200, html: true, content: function(){ return $('.js-additional-users-36689374').html(); 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Data were collected through planning, implementation and maintaining rural water supplies have always been considered there responsibility of the central government and external support agencies. The study therefore recommended some management strategies in order to improve the sustainability of water schemes in the study area by designing the economical rural multi village water supply scheme.","downloadable_attachments":[{"id":56627220,"asset_id":36689374,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":8163309,"first_name":"IJSRD","last_name":"International Journal for Scientific Research and Development","domain_name":"independent","page_name":"IJSRD","display_name":"IJSRD - International Journal for Scientific Research and Development","profile_url":"https://independent.academia.edu/IJSRD?f_ri=21731","photo":"https://0.academia-photos.com/8163309/3008173/12091840/s65_ijsrd.international_journal_for_scientific_research_and_development.jpg"},{"id":83380154,"first_name":"Bhabad Dhanashri","last_name":"Sudhakar","domain_name":"independent","page_name":"BhabadDhanashriSudhakar","display_name":"Bhabad Dhanashri Sudhakar","profile_url":"https://independent.academia.edu/BhabadDhanashriSudhakar?f_ri=21731","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":73,"name":"Civil Engineering","url":"https://www.academia.edu/Documents/in/Civil_Engineering?f_ri=21731","nofollow":true},{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true},{"id":40815,"name":"Cost Estimation","url":"https://www.academia.edu/Documents/in/Cost_Estimation?f_ri=21731","nofollow":true},{"id":100631,"name":"WTP","url":"https://www.academia.edu/Documents/in/WTP?f_ri=21731","nofollow":true},{"id":351328,"name":"Distribution network","url":"https://www.academia.edu/Documents/in/Distribution_network?f_ri=21731"},{"id":601000,"name":"MBR","url":"https://www.academia.edu/Documents/in/MBR?f_ri=21731"},{"id":745498,"name":"Water Treatment Plants","url":"https://www.academia.edu/Documents/in/Water_Treatment_Plants?f_ri=21731"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_36048427" data-work_id="36048427" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" rel="nofollow" href="https://www.academia.edu/36048427/METALLO_BIOACTIVE_COMPOUNDS_AS_POTENTIAL_NOVEL_ANTICANCER_THERAPY">METALLO -BIOACTIVE COMPOUNDS AS POTENTIAL NOVEL ANTICANCER THERAPY</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Mono and bi-organometallic complexes of Cu(II), Ni(II), Mn(II), Zn(II) and Ag(I) complexes with oxaloamide ligand has much potential as therapeutic and diagnostic agents. The ligand allows the thermodynamic and kinetic reactivity of the... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_36048427" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Mono and bi-organometallic complexes of Cu(II), Ni(II), Mn(II), Zn(II) and Ag(I) complexes with oxaloamide ligand has much potential as therapeutic and diagnostic agents. The ligand allows the thermodynamic and kinetic reactivity of the metal ion to be controlled and also provide a scaffold for functionalization. Specific examples involving the design of metal complexes as anticancer agents are discussed. These complexes have been synthesized and characterized by (1H-NMR, mass, IR, UV-VIS, ESR) spectra, magnetic moments and conductance measurements, elemental and thermal analyses. Molar conductances in DMF solution indicates that, the complexes are non-electrolytes. The ESR spectra of solid Cu(II) complexes (2-5) show an axial type indicating a d(X2-y2) ground state with a significant covalent bond character. However, Mn(II) complex(9), shows an isotropic type indicating an octahedral geometry. Cytotoxic evolution IC50 of the ligand and its complexes have been carried out. Cu(II) Complexes show enhanced activity in comparison to the parent ligand or standard drug. Copper is enriched in various human cancer tissues and is a co-factor essential for tumor angiogenesis processes. However, the use of copper binding ligand to target tumor, copper could provide a novel strategy for cancer selective treatment.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/36048427" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="2341675d14f777b1e6e15db6da80f213" rel="nofollow" data-download="{"attachment_id":55934476,"asset_id":36048427,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/55934476/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="28954557" rel="nofollow" href="https://independent.academia.edu/IJACJournal">International Journal of Advances in Chemistry (IJAC)</a><script data-card-contents-for-user="28954557" type="text/json">{"id":28954557,"first_name":"International Journal of Advances in Chemistry","last_name":"(IJAC)","domain_name":"independent","page_name":"IJACJournal","display_name":"International Journal of Advances in Chemistry (IJAC)","profile_url":"https://independent.academia.edu/IJACJournal?f_ri=21731","photo":"https://0.academia-photos.com/28954557/9190264/57933144/s65_international_journal_of_advances_in_chemistry._ijac_.jpg"}</script></span></span></li><li class="js-paper-rank-work_36048427 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="36048427"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 36048427, container: ".js-paper-rank-work_36048427", }); 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$(".js-view-count[data-work-id=36048427]").text(description); $(".js-view-count-work_36048427").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_36048427").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="36048427"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">12</a>  </div><span class="InlineList-item-text u-textTruncate u-pl10x"><a class="InlineList-item-text" data-has-card-for-ri="524" rel="nofollow" href="https://www.academia.edu/Documents/in/Analytical_Chemistry">Analytical Chemistry</a>, <script data-card-contents-for-ri="524" type="text/json">{"id":524,"name":"Analytical Chemistry","url":"https://www.academia.edu/Documents/in/Analytical_Chemistry?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="531" rel="nofollow" href="https://www.academia.edu/Documents/in/Organic_Chemistry">Organic Chemistry</a>, <script data-card-contents-for-ri="531" type="text/json">{"id":531,"name":"Organic Chemistry","url":"https://www.academia.edu/Documents/in/Organic_Chemistry?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="15836" rel="nofollow" href="https://www.academia.edu/Documents/in/Environmental_Chemistry">Environmental Chemistry</a>, <script data-card-contents-for-ri="15836" type="text/json">{"id":15836,"name":"Environmental Chemistry","url":"https://www.academia.edu/Documents/in/Environmental_Chemistry?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="18520" rel="nofollow" href="https://www.academia.edu/Documents/in/Biological_Chemistry">Biological Chemistry</a><script data-card-contents-for-ri="18520" type="text/json">{"id":18520,"name":"Biological Chemistry","url":"https://www.academia.edu/Documents/in/Biological_Chemistry?f_ri=21731","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=36048427]'), work: {"id":36048427,"title":"METALLO -BIOACTIVE COMPOUNDS AS POTENTIAL NOVEL ANTICANCER THERAPY","created_at":"2018-03-01T00:49:58.467-08:00","url":"https://www.academia.edu/36048427/METALLO_BIOACTIVE_COMPOUNDS_AS_POTENTIAL_NOVEL_ANTICANCER_THERAPY?f_ri=21731","dom_id":"work_36048427","summary":"Mono and bi-organometallic complexes of Cu(II), Ni(II), Mn(II), Zn(II) and Ag(I) complexes with oxaloamide ligand has much potential as therapeutic and diagnostic agents. The ligand allows the thermodynamic and kinetic reactivity of the metal ion to be controlled and also provide a scaffold for functionalization. Specific examples involving the design of metal complexes as anticancer agents are discussed. These complexes have been synthesized and characterized by (1H-NMR, mass, IR, UV-VIS, ESR) spectra, magnetic moments and conductance measurements, elemental and thermal analyses. Molar conductances in DMF solution indicates that, the complexes are non-electrolytes. The ESR spectra of solid Cu(II) complexes (2-5) show an axial type indicating a d(X2-y2) ground state with a significant covalent bond character. However, Mn(II) complex(9), shows an isotropic type indicating an octahedral geometry. Cytotoxic evolution IC50 of the ligand and its complexes have been carried out. Cu(II) Complexes show enhanced activity in comparison to the parent ligand or standard drug. Copper is enriched in various human cancer tissues and is a co-factor essential for tumor angiogenesis processes. However, the use of copper binding ligand to target tumor, copper could provide a novel strategy for cancer selective treatment.","downloadable_attachments":[{"id":55934476,"asset_id":36048427,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":28954557,"first_name":"International Journal of Advances in Chemistry","last_name":"(IJAC)","domain_name":"independent","page_name":"IJACJournal","display_name":"International Journal of Advances in Chemistry (IJAC)","profile_url":"https://independent.academia.edu/IJACJournal?f_ri=21731","photo":"https://0.academia-photos.com/28954557/9190264/57933144/s65_international_journal_of_advances_in_chemistry._ijac_.jpg"}],"research_interests":[{"id":524,"name":"Analytical Chemistry","url":"https://www.academia.edu/Documents/in/Analytical_Chemistry?f_ri=21731","nofollow":true},{"id":531,"name":"Organic Chemistry","url":"https://www.academia.edu/Documents/in/Organic_Chemistry?f_ri=21731","nofollow":true},{"id":15836,"name":"Environmental Chemistry","url":"https://www.academia.edu/Documents/in/Environmental_Chemistry?f_ri=21731","nofollow":true},{"id":18520,"name":"Biological Chemistry","url":"https://www.academia.edu/Documents/in/Biological_Chemistry?f_ri=21731","nofollow":true},{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731"},{"id":22050,"name":"Cytotoxicity","url":"https://www.academia.edu/Documents/in/Cytotoxicity?f_ri=21731"},{"id":55388,"name":"Organic Synthesis","url":"https://www.academia.edu/Documents/in/Organic_Synthesis?f_ri=21731"},{"id":232831,"name":"Schiff bases","url":"https://www.academia.edu/Documents/in/Schiff_bases?f_ri=21731"},{"id":258386,"name":"Physical, Theoretical and Computational Chemistry","url":"https://www.academia.edu/Documents/in/Physical_Theoretical_and_Computational_Chemistry?f_ri=21731"},{"id":276471,"name":"Synthesis and characterization of heterogeneous catalysis for oxidation of organic compounds","url":"https://www.academia.edu/Documents/in/Synthesis_and_characterization_of_heterogeneous_catalysis_for_oxidation_of_organic_compounds?f_ri=21731"},{"id":645605,"name":"THEORETICAL AND COMPUTATIONAL CHEMISTRY","url":"https://www.academia.edu/Documents/in/THEORETICAL_AND_COMPUTATIONAL_CHEMISTRY?f_ri=21731"},{"id":732876,"name":"Complexes","url":"https://www.academia.edu/Documents/in/Complexes?f_ri=21731"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_15213568" data-work_id="15213568" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/15213568/epr_VS_others">epr VS others</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Recent advances in electron paramagnetic resonance (EPR) include capabilities for applications to areas as diverse as archeology, beer shelf life, biological structure, dosimetry, in vivo imaging, molecular magnets, and quantum computing.... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_15213568" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Recent advances in electron paramagnetic resonance (EPR) include capabilities for applications to areas as diverse as archeology, beer shelf life, biological structure, dosimetry, in vivo imaging, molecular magnets, and quantum computing. Enabling technologies include multifrequency continuous wave, pulsed, and rapid scan EPR. Interpretation is enhanced by increasingly powerful computational models.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/15213568" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="2c8513b602f7e2f2c0fc2d6ec62482f3" rel="nofollow" data-download="{"attachment_id":38583834,"asset_id":15213568,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/38583834/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="5547006" href="https://uofk.academia.edu/AAli">Ahmed Ali</a><script data-card-contents-for-user="5547006" type="text/json">{"id":5547006,"first_name":"Ahmed","last_name":"Ali","domain_name":"uofk","page_name":"AAli","display_name":"Ahmed Ali","profile_url":"https://uofk.academia.edu/AAli?f_ri=21731","photo":"https://0.academia-photos.com/5547006/49039931/37038016/s65_ahmed.ali.jpg"}</script></span></span></li><li class="js-paper-rank-work_15213568 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="15213568"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 15213568, container: ".js-paper-rank-work_15213568", }); });</script></li><li class="js-percentile-work_15213568 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 15213568; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_15213568"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_15213568 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="15213568"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 15213568; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=15213568]").text(description); $(".js-view-count-work_15213568").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_15213568").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="15213568"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i></div><span class="InlineList-item-text u-textTruncate u-pl6x"><a class="InlineList-item-text" data-has-card-for-ri="21731" rel="nofollow" href="https://www.academia.edu/Documents/in/EPR_ESR">EPR, ESR</a><script data-card-contents-for-ri="21731" type="text/json">{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true}</script></span></li><script>(function(){ if (false) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=15213568]'), work: {"id":15213568,"title":"epr VS others","created_at":"2015-08-26T21:09:53.672-07:00","url":"https://www.academia.edu/15213568/epr_VS_others?f_ri=21731","dom_id":"work_15213568","summary":"Recent advances in electron paramagnetic resonance (EPR) include capabilities for applications to areas as diverse as archeology, beer shelf life, biological structure, dosimetry, in vivo imaging, molecular magnets, and quantum computing. Enabling technologies include multifrequency continuous wave, pulsed, and rapid scan EPR. Interpretation is enhanced by increasingly powerful computational models.","downloadable_attachments":[{"id":38583834,"asset_id":15213568,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":5547006,"first_name":"Ahmed","last_name":"Ali","domain_name":"uofk","page_name":"AAli","display_name":"Ahmed Ali","profile_url":"https://uofk.academia.edu/AAli?f_ri=21731","photo":"https://0.academia-photos.com/5547006/49039931/37038016/s65_ahmed.ali.jpg"}],"research_interests":[{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_2643971" data-work_id="2643971" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/2643971/Electron_paramagnetic_resonance_EPR_spectroscopy_of_nephrite_from_Neolithic_artefacts_from_SW_Bulgaria_">Electron paramagnetic resonance (EPR) spectroscopy of nephrite (from Neolithic artefacts from SW Bulgaria)</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Electron paramagnetic resonance (EPR) studies are carried out in different regimes on five samples of nephrite Ca2(Fe,Mg)5Si8O22(OH)2 from Neolithic artefacts, found during archaeological excavations in prehistoric settlements in... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_2643971" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Electron paramagnetic resonance (EPR) studies are carried out in different regimes on five samples of nephrite Ca2(Fe,Mg)5Si8O22(OH)2 from Neolithic artefacts, found during archaeological excavations in prehistoric settlements in South-West Bulgaria -Galabnik, Bulgarchevo and Kovachevo. Three types of signals are identified in the EPR spectra of the studied samples of nephrite. The first one is a weak signal of Fe 3+ (with a g~4.3; in supposed tetrahedral sites in the structure), the second one is a strong and broad signal due to iron-bearing phases and/or Fe 3+ -Fe 2+ clusters (with g~2) and the third one -a signal from Mn 2+ (6-component signal at g~2 with a wide of ~50 mT). The EPR spectroscopic data as well as the geochemical data are considered as useful for determination of groups of nephrite samples from one, two or more probable deposits (occurrences) on the territory of Southern Bulgaria or some other Balkan countries.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/2643971" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="3098925dd91131be54cb1fd0624ce27e" rel="nofollow" data-download="{"attachment_id":30648644,"asset_id":2643971,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/30648644/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="987096" href="https://independent.academia.edu/RuslanIKostov">Ruslan I. Kostov</a><script data-card-contents-for-user="987096" type="text/json">{"id":987096,"first_name":"Ruslan","last_name":"I. Kostov","domain_name":"independent","page_name":"RuslanIKostov","display_name":"Ruslan I. Kostov","profile_url":"https://independent.academia.edu/RuslanIKostov?f_ri=21731","photo":"https://0.academia-photos.com/987096/355074/19830041/s65_ruslan.i._kostov.jpg"}</script></span></span></li><li class="js-paper-rank-work_2643971 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="2643971"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 2643971, container: ".js-paper-rank-work_2643971", }); });</script></li><li class="js-percentile-work_2643971 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 2643971; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_2643971"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_2643971 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="2643971"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 2643971; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=2643971]").text(description); $(".js-view-count-work_2643971").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_2643971").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="2643971"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">10</a>  </div><span class="InlineList-item-text u-textTruncate u-pl10x"><a class="InlineList-item-text" data-has-card-for-ri="403" rel="nofollow" href="https://www.academia.edu/Documents/in/Gemology">Gemology</a>, <script data-card-contents-for-ri="403" type="text/json">{"id":403,"name":"Gemology","url":"https://www.academia.edu/Documents/in/Gemology?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="414" rel="nofollow" href="https://www.academia.edu/Documents/in/Mineralogy">Mineralogy</a>, <script data-card-contents-for-ri="414" type="text/json">{"id":414,"name":"Mineralogy","url":"https://www.academia.edu/Documents/in/Mineralogy?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="11199" rel="nofollow" href="https://www.academia.edu/Documents/in/Neolithic_Archaeology">Neolithic Archaeology</a>, <script data-card-contents-for-ri="11199" type="text/json">{"id":11199,"name":"Neolithic Archaeology","url":"https://www.academia.edu/Documents/in/Neolithic_Archaeology?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="12807" rel="nofollow" href="https://www.academia.edu/Documents/in/Archaeometry">Archaeometry</a><script data-card-contents-for-ri="12807" type="text/json">{"id":12807,"name":"Archaeometry","url":"https://www.academia.edu/Documents/in/Archaeometry?f_ri=21731","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=2643971]'), work: {"id":2643971,"title":"Electron paramagnetic resonance (EPR) spectroscopy of nephrite (from Neolithic artefacts from SW Bulgaria)","created_at":"2013-02-25T00:19:49.688-08:00","url":"https://www.academia.edu/2643971/Electron_paramagnetic_resonance_EPR_spectroscopy_of_nephrite_from_Neolithic_artefacts_from_SW_Bulgaria_?f_ri=21731","dom_id":"work_2643971","summary":"Electron paramagnetic resonance (EPR) studies are carried out in different regimes on five samples of nephrite Ca2(Fe,Mg)5Si8O22(OH)2 from Neolithic artefacts, found during archaeological excavations in prehistoric settlements in South-West Bulgaria -Galabnik, Bulgarchevo and Kovachevo. Three types of signals are identified in the EPR spectra of the studied samples of nephrite. The first one is a weak signal of Fe 3+ (with a g~4.3; in supposed tetrahedral sites in the structure), the second one is a strong and broad signal due to iron-bearing phases and/or Fe 3+ -Fe 2+ clusters (with g~2) and the third one -a signal from Mn 2+ (6-component signal at g~2 with a wide of ~50 mT). The EPR spectroscopic data as well as the geochemical data are considered as useful for determination of groups of nephrite samples from one, two or more probable deposits (occurrences) on the territory of Southern Bulgaria or some other Balkan countries.","downloadable_attachments":[{"id":30648644,"asset_id":2643971,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":987096,"first_name":"Ruslan","last_name":"I. Kostov","domain_name":"independent","page_name":"RuslanIKostov","display_name":"Ruslan I. Kostov","profile_url":"https://independent.academia.edu/RuslanIKostov?f_ri=21731","photo":"https://0.academia-photos.com/987096/355074/19830041/s65_ruslan.i._kostov.jpg"}],"research_interests":[{"id":403,"name":"Gemology","url":"https://www.academia.edu/Documents/in/Gemology?f_ri=21731","nofollow":true},{"id":414,"name":"Mineralogy","url":"https://www.academia.edu/Documents/in/Mineralogy?f_ri=21731","nofollow":true},{"id":11199,"name":"Neolithic Archaeology","url":"https://www.academia.edu/Documents/in/Neolithic_Archaeology?f_ri=21731","nofollow":true},{"id":12807,"name":"Archaeometry","url":"https://www.academia.edu/Documents/in/Archaeometry?f_ri=21731","nofollow":true},{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731"},{"id":25050,"name":"Archaeomineralogy","url":"https://www.academia.edu/Documents/in/Archaeomineralogy?f_ri=21731"},{"id":41906,"name":"Neolithic","url":"https://www.academia.edu/Documents/in/Neolithic?f_ri=21731"},{"id":77506,"name":"Neolithic Axes","url":"https://www.academia.edu/Documents/in/Neolithic_Axes?f_ri=21731"},{"id":316834,"name":"Lithics Nephrite Jadeitite Neolithic Prehistory","url":"https://www.academia.edu/Documents/in/Lithics_Nephrite_Jadeitite_Neolithic_Prehistory?f_ri=21731"},{"id":317601,"name":"Nephrite","url":"https://www.academia.edu/Documents/in/Nephrite?f_ri=21731"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_17269763 coauthored" data-work_id="17269763" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/17269763/EPR_on_Radiation_Induced_Defects_in_SiO2">EPR on Radiation-Induced Defects in SiO2</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Continuous-wave electron paramagnetic resonance (EPR) spectroscopy has been the technique of choice for the studies of radiation-induced defects in silica (SiO2) for 60 years, and has recently been expanded to include more sophisticated... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_17269763" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Continuous-wave electron paramagnetic resonance (EPR) spectroscopy<br />has been the technique of choice for the studies of radiation-induced defects in silica (SiO2) for 60 years, and has recently been expanded to include more sophisticated techniques such as high-frequency EPR, pulse electron nuclear double resonance (ENDOR), and pulse electron spin echo envelope modulation (ESEEM) spectroscopy.<br />Structural models of radiation-induced defects obtained from single-crystal<br />EPR analyses of crystalline SiO2 (alpha-quartz) are often applicable to their respective analogues in amorphous silica (a-SiO2), although significant differences are common.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/17269763" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="e086ed633a119111dc19510e4ce5d4e1" rel="nofollow" data-download="{"attachment_id":39409097,"asset_id":17269763,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/39409097/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="36907166" href="https://iggcas.academia.edu/RudolfMashkovtsev">Rudolf Mashkovtsev</a><script data-card-contents-for-user="36907166" type="text/json">{"id":36907166,"first_name":"Rudolf","last_name":"Mashkovtsev","domain_name":"iggcas","page_name":"RudolfMashkovtsev","display_name":"Rudolf Mashkovtsev","profile_url":"https://iggcas.academia.edu/RudolfMashkovtsev?f_ri=21731","photo":"https://0.academia-photos.com/36907166/10528490/11749446/s65_rudolf.mashkovtsev.jpg"}</script></span></span><span class="u-displayInlineBlock InlineList-item-text"> and <span class="u-textDecorationUnderline u-clickable InlineList-item-text js-work-more-authors-17269763">+1</span><div class="hidden js-additional-users-17269763"><div><span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a href="https://independent.academia.edu/AntoninoAlessi">Antonino Alessi</a></span></div></div></span><script>(function(){ var popoverSettings = { el: $('.js-work-more-authors-17269763'), placement: 'bottom', hide_delay: 200, html: true, content: function(){ return $('.js-additional-users-17269763').html(); } } new 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container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_17269763 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="17269763"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 17269763; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=17269763]").text(description); $(".js-view-count-work_17269763").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_17269763").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="17269763"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">6</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="1177" rel="nofollow" href="https://www.academia.edu/Documents/in/Crystallography">Crystallography</a>, <script data-card-contents-for-ri="1177" type="text/json">{"id":1177,"name":"Crystallography","url":"https://www.academia.edu/Documents/in/Crystallography?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="10704" rel="nofollow" href="https://www.academia.edu/Documents/in/Crystal_Engineering">Crystal Engineering</a>, <script data-card-contents-for-ri="10704" type="text/json">{"id":10704,"name":"Crystal Engineering","url":"https://www.academia.edu/Documents/in/Crystal_Engineering?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="21731" rel="nofollow" href="https://www.academia.edu/Documents/in/EPR_ESR">EPR, ESR</a>, <script data-card-contents-for-ri="21731" type="text/json">{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="74607" rel="nofollow" href="https://www.academia.edu/Documents/in/Quartz">Quartz</a><script data-card-contents-for-ri="74607" type="text/json">{"id":74607,"name":"Quartz","url":"https://www.academia.edu/Documents/in/Quartz?f_ri=21731","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=17269763]'), work: {"id":17269763,"title":"EPR on Radiation-Induced Defects in SiO2","created_at":"2015-10-25T03:34:31.834-07:00","url":"https://www.academia.edu/17269763/EPR_on_Radiation_Induced_Defects_in_SiO2?f_ri=21731","dom_id":"work_17269763","summary":"Continuous-wave electron paramagnetic resonance (EPR) spectroscopy\nhas been the technique of choice for the studies of radiation-induced defects in silica (SiO2) for 60 years, and has recently been expanded to include more sophisticated techniques such as high-frequency EPR, pulse electron nuclear double resonance (ENDOR), and pulse electron spin echo envelope modulation (ESEEM) spectroscopy.\nStructural models of radiation-induced defects obtained from single-crystal\nEPR analyses of crystalline SiO2 (alpha-quartz) are often applicable to their respective analogues in amorphous silica (a-SiO2), although significant differences are common.","downloadable_attachments":[{"id":39409097,"asset_id":17269763,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":36907166,"first_name":"Rudolf","last_name":"Mashkovtsev","domain_name":"iggcas","page_name":"RudolfMashkovtsev","display_name":"Rudolf Mashkovtsev","profile_url":"https://iggcas.academia.edu/RudolfMashkovtsev?f_ri=21731","photo":"https://0.academia-photos.com/36907166/10528490/11749446/s65_rudolf.mashkovtsev.jpg"},{"id":37045829,"first_name":"Antonino","last_name":"Alessi","domain_name":"independent","page_name":"AntoninoAlessi","display_name":"Antonino Alessi","profile_url":"https://independent.academia.edu/AntoninoAlessi?f_ri=21731","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":1177,"name":"Crystallography","url":"https://www.academia.edu/Documents/in/Crystallography?f_ri=21731","nofollow":true},{"id":10704,"name":"Crystal Engineering","url":"https://www.academia.edu/Documents/in/Crystal_Engineering?f_ri=21731","nofollow":true},{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true},{"id":74607,"name":"Quartz","url":"https://www.academia.edu/Documents/in/Quartz?f_ri=21731","nofollow":true},{"id":97416,"name":"Glasses","url":"https://www.academia.edu/Documents/in/Glasses?f_ri=21731"},{"id":443788,"name":"Glass Fiber","url":"https://www.academia.edu/Documents/in/Glass_Fiber?f_ri=21731"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_17269659" data-work_id="17269659" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/17269659/NATURE_OF_PARAMAGNETIC_DEFECTS_IN_alpha_QUARTZ_PROGRESSES_IN_THE_FIRST_DECADE_OF_THE_21ST_CENTURY">NATURE OF PARAMAGNETIC DEFECTS IN alpha-QUARTZ: PROGRESSES IN THE FIRST DECADE OF THE 21ST CENTURY</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Impurities and other defects in alpha-quartz not only record genetic information of this common mineral but also exert profound (positive or negative) effects on the technological applications of this important material. Also, fundamental... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_17269659" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Impurities and other defects in alpha-quartz not only record genetic information of this common mineral but also exert profound (positive or negative) effects on the technological applications of this important material. Also, fundamental defects in alpha-quartz often serve as the testing cases for understanding analogous defects in other silica-based materials. Following the last comprehensive review by Weil (2000), this contribution summarizes new progresses on the nature of paramagnetic impurities and other defects in alpha-quartz, made in the first decade of this century. In particular, new data on impurities stem from not only the development of in situ microbeam techniques for compositional analyses but also the application of state-of-the-art spectroscopic methods [high-frequency electron paramagnetic resonance (EPR), pulsed electron nuclear double resonance (ENDOR) and electron spin echo envelope modulation (ESEEM), and synchrotron X-ray absorption spectroscopy] and first-principles theoretical calculations for structural investigations. Other significant progresses include the discovery and quantitative characterization of a large number of new paramagnetic defects related to vacancies at the oxygen and silicon sites.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/17269659" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="0736496e213dbadc4999a1c776967a96" rel="nofollow" data-download="{"attachment_id":39409057,"asset_id":17269659,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/39409057/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="36907166" href="https://iggcas.academia.edu/RudolfMashkovtsev">Rudolf Mashkovtsev</a><script data-card-contents-for-user="36907166" type="text/json">{"id":36907166,"first_name":"Rudolf","last_name":"Mashkovtsev","domain_name":"iggcas","page_name":"RudolfMashkovtsev","display_name":"Rudolf Mashkovtsev","profile_url":"https://iggcas.academia.edu/RudolfMashkovtsev?f_ri=21731","photo":"https://0.academia-photos.com/36907166/10528490/11749446/s65_rudolf.mashkovtsev.jpg"}</script></span></span></li><li class="js-paper-rank-work_17269659 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="17269659"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 17269659, container: ".js-paper-rank-work_17269659", }); });</script></li><li class="js-percentile-work_17269659 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 17269659; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_17269659"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_17269659 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="17269659"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 17269659; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=17269659]").text(description); $(".js-view-count-work_17269659").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_17269659").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="17269659"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">4</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="21731" rel="nofollow" href="https://www.academia.edu/Documents/in/EPR_ESR">EPR, ESR</a>, <script data-card-contents-for-ri="21731" type="text/json">{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="74607" rel="nofollow" href="https://www.academia.edu/Documents/in/Quartz">Quartz</a>, <script data-card-contents-for-ri="74607" type="text/json">{"id":74607,"name":"Quartz","url":"https://www.academia.edu/Documents/in/Quartz?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="97416" rel="nofollow" href="https://www.academia.edu/Documents/in/Glasses">Glasses</a>, <script data-card-contents-for-ri="97416" type="text/json">{"id":97416,"name":"Glasses","url":"https://www.academia.edu/Documents/in/Glasses?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="176370" rel="nofollow" href="https://www.academia.edu/Documents/in/Quartzite">Quartzite</a><script data-card-contents-for-ri="176370" type="text/json">{"id":176370,"name":"Quartzite","url":"https://www.academia.edu/Documents/in/Quartzite?f_ri=21731","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=17269659]'), work: {"id":17269659,"title":"NATURE OF PARAMAGNETIC DEFECTS IN alpha-QUARTZ: PROGRESSES IN THE FIRST DECADE OF THE 21ST CENTURY","created_at":"2015-10-25T03:29:02.071-07:00","url":"https://www.academia.edu/17269659/NATURE_OF_PARAMAGNETIC_DEFECTS_IN_alpha_QUARTZ_PROGRESSES_IN_THE_FIRST_DECADE_OF_THE_21ST_CENTURY?f_ri=21731","dom_id":"work_17269659","summary":"Impurities and other defects in alpha-quartz not only record genetic information of this common mineral but also exert profound (positive or negative) effects on the technological applications of this important material. Also, fundamental defects in alpha-quartz often serve as the testing cases for understanding analogous defects in other silica-based materials. Following the last comprehensive review by Weil (2000), this contribution summarizes new progresses on the nature of paramagnetic impurities and other defects in alpha-quartz, made in the first decade of this century. In particular, new data on impurities stem from not only the development of in situ microbeam techniques for compositional analyses but also the application of state-of-the-art spectroscopic methods [high-frequency electron paramagnetic resonance (EPR), pulsed electron nuclear double resonance (ENDOR) and electron spin echo envelope modulation (ESEEM), and synchrotron X-ray absorption spectroscopy] and first-principles theoretical calculations for structural investigations. Other significant progresses include the discovery and quantitative characterization of a large number of new paramagnetic defects related to vacancies at the oxygen and silicon sites.","downloadable_attachments":[{"id":39409057,"asset_id":17269659,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":36907166,"first_name":"Rudolf","last_name":"Mashkovtsev","domain_name":"iggcas","page_name":"RudolfMashkovtsev","display_name":"Rudolf Mashkovtsev","profile_url":"https://iggcas.academia.edu/RudolfMashkovtsev?f_ri=21731","photo":"https://0.academia-photos.com/36907166/10528490/11749446/s65_rudolf.mashkovtsev.jpg"}],"research_interests":[{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true},{"id":74607,"name":"Quartz","url":"https://www.academia.edu/Documents/in/Quartz?f_ri=21731","nofollow":true},{"id":97416,"name":"Glasses","url":"https://www.academia.edu/Documents/in/Glasses?f_ri=21731","nofollow":true},{"id":176370,"name":"Quartzite","url":"https://www.academia.edu/Documents/in/Quartzite?f_ri=21731","nofollow":true}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_13835361" data-work_id="13835361" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/13835361/THERMAL_AND_OPTICAL_STUDIES_OF_MIXED_ALKALI_ALKALINE_EARTH_OXIDE_BORATE_GLASSES">THERMAL AND OPTICAL STUDIES OF MIXED ALKALI-ALKALINE EARTH OXIDE BORATE GLASSES</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Glasses with the composition xK2O-(25-x)Na 2O-12.5MgO-12.5BaO-50B 2O3 (x =0, 5, 10, 15, 20 and 25mol %) were synthesized by the melt-quenching technique and were characterized using X-ray diffraction technique at room... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_13835361" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Glasses  with  the  composition  xK2O-(25-x)Na<br />2O-12.5MgO-12.5BaO-50B<br />2O3  (x  =0,  5,  10,  15,  20  and  25mol  %)<br />were synthesized by the melt-quenching technique and were characterized using X-ray diffraction technique at <br />room  temperature.  Physical  parameters  like  density,  oxygen  packing  density,  molar  volume  and  glasstransition temperature and optical parameters, like direct, indirect band gap, cut -off wavelength and Urbach <br />energy values were evaluated. These data was used to understand the mixed alkali effect in the glass matrix. <br />Differential scanning calorimeter (DSC) was used to determine the glass-transition temperature (Tg<br />). From the <br />optical absorption studies the values of the optical band gap (E<br />opt<br />) for indirect transition, optical edge, cut-off <br />wavelength, and Urbarch energy (∆E) have been evaluated. The values of Eopt, ∆E, glass-transition temperature <br />and cut-off wavelength show nonlinear behavior with the K<br />2O content which may be due to mixed alkali effect. <br />Density and  molar  volume also show nonlinear and opposite behavior with the K2O content which also may <br />due to the mixed alkali effect in the present glass system. <br />Keywords: Borate glasses, Differential scanning calorimeter (DSC), Optical absorption spectra, and mixed alkali <br />effect</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/13835361" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="e274ceb6421b73e424cf687b1f259b21" rel="nofollow" data-download="{"attachment_id":38139305,"asset_id":13835361,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/38139305/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="5423812" href="https://independent.academia.edu/srinugudepu">srinu gudepu</a><script data-card-contents-for-user="5423812" type="text/json">{"id":5423812,"first_name":"srinu","last_name":"gudepu","domain_name":"independent","page_name":"srinugudepu","display_name":"srinu gudepu","profile_url":"https://independent.academia.edu/srinugudepu?f_ri=21731","photo":"https://0.academia-photos.com/5423812/9794636/10913220/s65_srinu.gudepu.jpg"}</script></span></span></li><li class="js-paper-rank-work_13835361 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="13835361"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 13835361, container: ".js-paper-rank-work_13835361", }); 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$(".js-view-count[data-work-id=13835361]").text(description); $(".js-view-count-work_13835361").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_13835361").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="13835361"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">8</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="5427" rel="nofollow" href="https://www.academia.edu/Documents/in/Spectroscopy">Spectroscopy</a>, <script data-card-contents-for-ri="5427" type="text/json">{"id":5427,"name":"Spectroscopy","url":"https://www.academia.edu/Documents/in/Spectroscopy?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="13033" rel="nofollow" href="https://www.academia.edu/Documents/in/Optical_Spectroscopy">Optical Spectroscopy</a>, <script data-card-contents-for-ri="13033" type="text/json">{"id":13033,"name":"Optical Spectroscopy","url":"https://www.academia.edu/Documents/in/Optical_Spectroscopy?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="21731" rel="nofollow" href="https://www.academia.edu/Documents/in/EPR_ESR">EPR, ESR</a>, <script data-card-contents-for-ri="21731" type="text/json">{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="32379" rel="nofollow" href="https://www.academia.edu/Documents/in/Raman_and_IR_microscopy">Raman and IR microscopy</a><script data-card-contents-for-ri="32379" type="text/json">{"id":32379,"name":"Raman and IR microscopy","url":"https://www.academia.edu/Documents/in/Raman_and_IR_microscopy?f_ri=21731","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=13835361]'), work: {"id":13835361,"title":"THERMAL AND OPTICAL STUDIES OF MIXED ALKALI-ALKALINE EARTH OXIDE BORATE GLASSES","created_at":"2015-07-09T03:56:16.071-07:00","url":"https://www.academia.edu/13835361/THERMAL_AND_OPTICAL_STUDIES_OF_MIXED_ALKALI_ALKALINE_EARTH_OXIDE_BORATE_GLASSES?f_ri=21731","dom_id":"work_13835361","summary":"Glasses with the composition xK2O-(25-x)Na\n2O-12.5MgO-12.5BaO-50B\n2O3 (x =0, 5, 10, 15, 20 and 25mol %)\nwere synthesized by the melt-quenching technique and were characterized using X-ray diffraction technique at \nroom temperature. Physical parameters like density, oxygen packing density, molar volume and glasstransition temperature and optical parameters, like direct, indirect band gap, cut -off wavelength and Urbach \nenergy values were evaluated. These data was used to understand the mixed alkali effect in the glass matrix. \nDifferential scanning calorimeter (DSC) was used to determine the glass-transition temperature (Tg\n). From the \noptical absorption studies the values of the optical band gap (E\nopt\n) for indirect transition, optical edge, cut-off \nwavelength, and Urbarch energy (∆E) have been evaluated. The values of Eopt, ∆E, glass-transition temperature \nand cut-off wavelength show nonlinear behavior with the K\n2O content which may be due to mixed alkali effect. \nDensity and molar volume also show nonlinear and opposite behavior with the K2O content which also may \ndue to the mixed alkali effect in the present glass system. \nKeywords: Borate glasses, Differential scanning calorimeter (DSC), Optical absorption spectra, and mixed alkali \neffect","downloadable_attachments":[{"id":38139305,"asset_id":13835361,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":5423812,"first_name":"srinu","last_name":"gudepu","domain_name":"independent","page_name":"srinugudepu","display_name":"srinu gudepu","profile_url":"https://independent.academia.edu/srinugudepu?f_ri=21731","photo":"https://0.academia-photos.com/5423812/9794636/10913220/s65_srinu.gudepu.jpg"}],"research_interests":[{"id":5427,"name":"Spectroscopy","url":"https://www.academia.edu/Documents/in/Spectroscopy?f_ri=21731","nofollow":true},{"id":13033,"name":"Optical Spectroscopy","url":"https://www.academia.edu/Documents/in/Optical_Spectroscopy?f_ri=21731","nofollow":true},{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true},{"id":32379,"name":"Raman and IR microscopy","url":"https://www.academia.edu/Documents/in/Raman_and_IR_microscopy?f_ri=21731","nofollow":true},{"id":78842,"name":"Infrared spectroscopy","url":"https://www.academia.edu/Documents/in/Infrared_spectroscopy?f_ri=21731"},{"id":366195,"name":"Ionic Conductivity","url":"https://www.academia.edu/Documents/in/Ionic_Conductivity?f_ri=21731"},{"id":390049,"name":"Electrical Conductivity","url":"https://www.academia.edu/Documents/in/Electrical_Conductivity?f_ri=21731"},{"id":1177442,"name":"Differential Scanning Calorimetry (DSC)","url":"https://www.academia.edu/Documents/in/Differential_Scanning_Calorimetry_DSC_?f_ri=21731"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_17502785 coauthored" data-work_id="17502785" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/17502785/EPR_study_of_coordination_of_Ag_and_Pb_cations_in_BaB2O4_crystals_and_barium_borate_glasses">EPR study of coordination of Ag and Pb cations in BaB2O4 crystals and barium borate glasses</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">It is shown the possibility to determine the coordination of paramagnetic ions in disordered solid structures, e.g., in barium borate glasses. For this purpose the electron paramagnetic resonance (EPR) method was used to study a-and... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_17502785" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">It is shown the possibility to determine the coordination of paramagnetic ions in disordered solid structures, e.g., in barium borate glasses. For this purpose the electron paramagnetic resonance (EPR) method was used to study a-and b-BaB2O4 crystals and glasses of 45BaO9 55B2O3 and 40BaO9 60B2O3 (mol%) composition activated by Ag+ and Pb2+ ions. After the samples were exposed to X-rays at 77 K, different EPR centers<br />were observed in them. In a-and b-BaB2O4 crystals and<br />glasses the EPR centers Ag2+, Ag0 , Pb+ , Pb3+, and hole<br />centers of O- type were studied. The EPR parameters of<br />these centers and their arrangement in crystal structure<br />were determined. It is shown that Pb3+ ions in b-BaB2O4<br />crystals occupy Ba2+ position in an irregular polyhedron<br />from the eight oxygen, whereas in a-BaB2O4 crystals they<br />occupy Bf2 position in a sixfold coordination. Pb+ ions in<br />a-BaB2O4 crystals occupy Bf1 position in a ninefold<br />coordination from oxygen. In barium borate glasses, Pb3+<br />ions were studied in coordination polyhedron from six<br />oxygen atoms and in a polyhedron from nine to ten oxygen<br />atoms. It is assumed that the established difference in the<br />structural position of Pb3+ ions in glasses is due to their<br />previous incorporation in associative cation–anion complexes<br />(AC) and ‘‘free’’ structure-forming cations (FC).<br />Computer simulations have been performed to analyze the<br />stability of specific associative complexes and to compare<br />their bond lengths with experimental data.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/17502785" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="30f741e3ec8c4870fcc75a77c4850f04" rel="nofollow" data-download="{"attachment_id":39545798,"asset_id":17502785,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/39545798/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="36907166" href="https://iggcas.academia.edu/RudolfMashkovtsev">Rudolf Mashkovtsev</a><script data-card-contents-for-user="36907166" type="text/json">{"id":36907166,"first_name":"Rudolf","last_name":"Mashkovtsev","domain_name":"iggcas","page_name":"RudolfMashkovtsev","display_name":"Rudolf Mashkovtsev","profile_url":"https://iggcas.academia.edu/RudolfMashkovtsev?f_ri=21731","photo":"https://0.academia-photos.com/36907166/10528490/11749446/s65_rudolf.mashkovtsev.jpg"}</script></span></span><span class="u-displayInlineBlock InlineList-item-text"> and <span class="u-textDecorationUnderline u-clickable InlineList-item-text js-work-more-authors-17502785">+1</span><div class="hidden js-additional-users-17502785"><div><span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a href="https://independent.academia.edu/VladimirSolntsev">Vladimir Solntsev</a></span></div></div></span><script>(function(){ var popoverSettings = { el: $('.js-work-more-authors-17502785'), placement: 'bottom', hide_delay: 200, html: true, content: function(){ return $('.js-additional-users-17502785').html(); 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For this purpose the electron paramagnetic resonance (EPR) method was used to study a-and b-BaB2O4 crystals and glasses of 45\u0001BaO9 55\u0001B2O3 and 40\u0001BaO9 60\u0001B2O3 (mol%) composition activated by Ag+ and Pb2+ ions. After the samples were exposed to X-rays at 77 K, different EPR centers\nwere observed in them. In a-and b-BaB2O4 crystals and\nglasses the EPR centers Ag2+, Ag0 , Pb+ , Pb3+, and hole\ncenters of O- type were studied. The EPR parameters of\nthese centers and their arrangement in crystal structure\nwere determined. It is shown that Pb3+ ions in b-BaB2O4\ncrystals occupy Ba2+ position in an irregular polyhedron\nfrom the eight oxygen, whereas in a-BaB2O4 crystals they\noccupy Bf2 position in a sixfold coordination. Pb+ ions in\na-BaB2O4 crystals occupy Bf1 position in a ninefold\ncoordination from oxygen. In barium borate glasses, Pb3+\nions were studied in coordination polyhedron from six\noxygen atoms and in a polyhedron from nine to ten oxygen\natoms. It is assumed that the established difference in the\nstructural position of Pb3+ ions in glasses is due to their\nprevious incorporation in associative cation–anion complexes\n(AC) and ‘‘free’’ structure-forming cations (FC).\nComputer simulations have been performed to analyze the\nstability of specific associative complexes and to compare\ntheir bond lengths with experimental data.","downloadable_attachments":[{"id":39545798,"asset_id":17502785,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":36907166,"first_name":"Rudolf","last_name":"Mashkovtsev","domain_name":"iggcas","page_name":"RudolfMashkovtsev","display_name":"Rudolf Mashkovtsev","profile_url":"https://iggcas.academia.edu/RudolfMashkovtsev?f_ri=21731","photo":"https://0.academia-photos.com/36907166/10528490/11749446/s65_rudolf.mashkovtsev.jpg"},{"id":37414462,"first_name":"Vladimir","last_name":"Solntsev","domain_name":"independent","page_name":"VladimirSolntsev","display_name":"Vladimir Solntsev","profile_url":"https://independent.academia.edu/VladimirSolntsev?f_ri=21731","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":4120,"name":"Crystal Growth","url":"https://www.academia.edu/Documents/in/Crystal_Growth?f_ri=21731","nofollow":true},{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true},{"id":37780,"name":"EPR Spectroscopy","url":"https://www.academia.edu/Documents/in/EPR_Spectroscopy?f_ri=21731","nofollow":true},{"id":90516,"name":"Borates","url":"https://www.academia.edu/Documents/in/Borates?f_ri=21731","nofollow":true}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_10224655" data-work_id="10224655" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/10224655/Redox_reactions_in_a_linear_polyviologen_derivative_studied_by_in_situ_ESR_UV_vis_NIR_spectroelectrochemistry">Redox reactions in a linear polyviologen derivative studied by in situ ESR/UV-vis-NIR spectroelectrochemistry</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">It is well-known that reductive electropolymerization of cyanopyridinium moieties yields to viologenic materials. In this work, a monomer with two electropolymerizable cyanopyridinium groups separated by a six carbon spacer (CNP) has... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_10224655" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">It is well-known that reductive electropolymerization <br />of cyanopyridinium moieties yields to viologenic materials. In <br />this work, a monomer with two electropolymerizable <br />cyanopyridinium groups separated by a six carbon spacer <br />(CNP) has been synthesized. Its electropolymerization in aqueous <br />electrolyte results in a linear polyviologen (PV) derivative, a <br />purple-colored film deposited on the electrode surface. Cyclic <br />voltammetry (CV) of PV films displays two well-resolved oneelectron <br />redox processes at c.a. −0.5 and −1.0 V vs. Ag/AgCl. <br />Fourier transform infrared (FTIR) spectral analysis <br />shows successful polymerization of PV from the CNP <br />monomer. In situ electron spin resonance (ESR)/UV-vis- <br />NIR spectroelectrochemistry was used in order to simultaneously <br />determine the polycation radical as well as the <br />magnetic and optical response of the redox PV system. <br />The single-line ESR spectrum observed at the first reduction <br />peak of PV film was assigned to the formation <br />of stable viologen cation radical species within the <br />polymer matrix, exhibiting the characteristic UV-vis- <br />NIR viologen cation radical absorption bands. The <br />electrosynthesized linear PV system represents a promising <br />stable redox active n-type material for organic <br />rechargeable devices.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/10224655" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="ec6b645a4d9f98fd805be476f6a08446" rel="nofollow" data-download="{"attachment_id":36319314,"asset_id":10224655,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/36319314/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="14108568" href="https://utu.academia.edu/BhushanGadgil">Bhushan Gadgil</a><script data-card-contents-for-user="14108568" type="text/json">{"id":14108568,"first_name":"Bhushan","last_name":"Gadgil","domain_name":"utu","page_name":"BhushanGadgil","display_name":"Bhushan Gadgil","profile_url":"https://utu.academia.edu/BhushanGadgil?f_ri=21731","photo":"https://0.academia-photos.com/14108568/3885733/16578529/s65_bhushan.gadgil.jpg"}</script></span></span></li><li class="js-paper-rank-work_10224655 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="10224655"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 10224655, container: ".js-paper-rank-work_10224655", }); });</script></li><li class="js-percentile-work_10224655 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 10224655; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_10224655"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_10224655 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="10224655"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 10224655; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=10224655]").text(description); $(".js-view-count-work_10224655").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_10224655").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="10224655"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">5</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="21731" rel="nofollow" href="https://www.academia.edu/Documents/in/EPR_ESR">EPR, ESR</a>, <script data-card-contents-for-ri="21731" type="text/json">{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="51947" rel="nofollow" href="https://www.academia.edu/Documents/in/Spectroelectrochemistry">Spectroelectrochemistry</a>, <script data-card-contents-for-ri="51947" type="text/json">{"id":51947,"name":"Spectroelectrochemistry","url":"https://www.academia.edu/Documents/in/Spectroelectrochemistry?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="334946" rel="nofollow" href="https://www.academia.edu/Documents/in/Viologens_Chemistry">Viologens Chemistry</a>, <script data-card-contents-for-ri="334946" type="text/json">{"id":334946,"name":"Viologens Chemistry","url":"https://www.academia.edu/Documents/in/Viologens_Chemistry?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="625672" rel="nofollow" href="https://www.academia.edu/Documents/in/Redox_Polymerization">Redox Polymerization</a><script data-card-contents-for-ri="625672" type="text/json">{"id":625672,"name":"Redox Polymerization","url":"https://www.academia.edu/Documents/in/Redox_Polymerization?f_ri=21731","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=10224655]'), work: {"id":10224655,"title":"Redox reactions in a linear polyviologen derivative studied by in situ ESR/UV-vis-NIR spectroelectrochemistry","created_at":"2015-01-19T00:00:17.182-08:00","url":"https://www.academia.edu/10224655/Redox_reactions_in_a_linear_polyviologen_derivative_studied_by_in_situ_ESR_UV_vis_NIR_spectroelectrochemistry?f_ri=21731","dom_id":"work_10224655","summary":"It is well-known that reductive electropolymerization\r\nof cyanopyridinium moieties yields to viologenic materials. In\r\nthis work, a monomer with two electropolymerizable\r\ncyanopyridinium groups separated by a six carbon spacer\r\n(CNP) has been synthesized. Its electropolymerization in aqueous\r\nelectrolyte results in a linear polyviologen (PV) derivative, a\r\npurple-colored film deposited on the electrode surface. Cyclic\r\nvoltammetry (CV) of PV films displays two well-resolved oneelectron\r\nredox processes at c.a. −0.5 and −1.0 V vs. Ag/AgCl.\r\nFourier transform infrared (FTIR) spectral analysis\r\nshows successful polymerization of PV from the CNP\r\nmonomer. In situ electron spin resonance (ESR)/UV-vis-\r\nNIR spectroelectrochemistry was used in order to simultaneously\r\ndetermine the polycation radical as well as the\r\nmagnetic and optical response of the redox PV system.\r\nThe single-line ESR spectrum observed at the first reduction\r\npeak of PV film was assigned to the formation\r\nof stable viologen cation radical species within the\r\npolymer matrix, exhibiting the characteristic UV-vis-\r\nNIR viologen cation radical absorption bands. The\r\nelectrosynthesized linear PV system represents a promising\r\nstable redox active n-type material for organic\r\nrechargeable devices.","downloadable_attachments":[{"id":36319314,"asset_id":10224655,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":14108568,"first_name":"Bhushan","last_name":"Gadgil","domain_name":"utu","page_name":"BhushanGadgil","display_name":"Bhushan Gadgil","profile_url":"https://utu.academia.edu/BhushanGadgil?f_ri=21731","photo":"https://0.academia-photos.com/14108568/3885733/16578529/s65_bhushan.gadgil.jpg"}],"research_interests":[{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true},{"id":51947,"name":"Spectroelectrochemistry","url":"https://www.academia.edu/Documents/in/Spectroelectrochemistry?f_ri=21731","nofollow":true},{"id":334946,"name":"Viologens Chemistry","url":"https://www.academia.edu/Documents/in/Viologens_Chemistry?f_ri=21731","nofollow":true},{"id":625672,"name":"Redox Polymerization","url":"https://www.academia.edu/Documents/in/Redox_Polymerization?f_ri=21731","nofollow":true},{"id":1915211,"name":"Polyviologen","url":"https://www.academia.edu/Documents/in/Polyviologen?f_ri=21731"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_684180" data-work_id="684180" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/684180/%CF%83_Donor_and_%CF%80_Acceptor_Stacking_Interactions_in_a_trans_2_linked_C60_Cobalt_II_Tetraphenylporphyrin_Diad">σ-Donor and π-Acceptor Stacking Interactions in a trans-2-linked C60-Cobalt(II) Tetraphenylporphyrin Diad</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">A trans-2-linked molecular diad displays both σ-donor and π-acceptor interations (see picture). The crystal structure reveals linear stacking arrangements in which the fullerene moiety is located directly above the porphyrin moiety of the... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_684180" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">A trans-2-linked molecular diad displays both σ-donor and π-acceptor interations (see picture). The crystal structure reveals linear stacking arrangements in which the fullerene moiety is located directly above the porphyrin moiety of the neighboring molecule.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/684180" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="4520a78641375c512cab0fd39a782698" rel="nofollow" data-download="{"attachment_id":51293481,"asset_id":684180,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/51293481/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="163937" href="https://uni-frankfurt.academia.edu/BjoernCorzilius">Björn Corzilius</a><script data-card-contents-for-user="163937" type="text/json">{"id":163937,"first_name":"Björn","last_name":"Corzilius","domain_name":"uni-frankfurt","page_name":"BjoernCorzilius","display_name":"Björn Corzilius","profile_url":"https://uni-frankfurt.academia.edu/BjoernCorzilius?f_ri=21731","photo":"/images/s65_no_pic.png"}</script></span></span></li><li class="js-paper-rank-work_684180 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="684180"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 684180, container: ".js-paper-rank-work_684180", }); 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$(".js-view-count[data-work-id=684180]").text(description); $(".js-view-count-work_684180").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_684180").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="684180"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">5</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="21731" rel="nofollow" href="https://www.academia.edu/Documents/in/EPR_ESR">EPR, ESR</a>, <script data-card-contents-for-ri="21731" type="text/json">{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="23698" rel="nofollow" href="https://www.academia.edu/Documents/in/Porphyrins">Porphyrins</a>, <script data-card-contents-for-ri="23698" type="text/json">{"id":23698,"name":"Porphyrins","url":"https://www.academia.edu/Documents/in/Porphyrins?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="53354" rel="nofollow" href="https://www.academia.edu/Documents/in/Fullerenes">Fullerenes</a>, <script data-card-contents-for-ri="53354" type="text/json">{"id":53354,"name":"Fullerenes","url":"https://www.academia.edu/Documents/in/Fullerenes?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="77226" rel="nofollow" href="https://www.academia.edu/Documents/in/Charge_and_Electron_Transfer">Charge and Electron Transfer</a><script data-card-contents-for-ri="77226" type="text/json">{"id":77226,"name":"Charge and Electron Transfer","url":"https://www.academia.edu/Documents/in/Charge_and_Electron_Transfer?f_ri=21731","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=684180]'), work: {"id":684180,"title":"σ-Donor and π-Acceptor Stacking Interactions in a trans-2-linked C60-Cobalt(II) Tetraphenylporphyrin Diad","created_at":"2011-06-20T01:38:51.514-07:00","url":"https://www.academia.edu/684180/%CF%83_Donor_and_%CF%80_Acceptor_Stacking_Interactions_in_a_trans_2_linked_C60_Cobalt_II_Tetraphenylporphyrin_Diad?f_ri=21731","dom_id":"work_684180","summary":"A trans-2-linked molecular diad displays both σ-donor and π-acceptor interations (see picture). The crystal structure reveals linear stacking arrangements in which the fullerene moiety is located directly above the porphyrin moiety of the neighboring molecule.","downloadable_attachments":[{"id":51293481,"asset_id":684180,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":163937,"first_name":"Björn","last_name":"Corzilius","domain_name":"uni-frankfurt","page_name":"BjoernCorzilius","display_name":"Björn Corzilius","profile_url":"https://uni-frankfurt.academia.edu/BjoernCorzilius?f_ri=21731","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true},{"id":23698,"name":"Porphyrins","url":"https://www.academia.edu/Documents/in/Porphyrins?f_ri=21731","nofollow":true},{"id":53354,"name":"Fullerenes","url":"https://www.academia.edu/Documents/in/Fullerenes?f_ri=21731","nofollow":true},{"id":77226,"name":"Charge and Electron Transfer","url":"https://www.academia.edu/Documents/in/Charge_and_Electron_Transfer?f_ri=21731","nofollow":true},{"id":168454,"name":"Cobalt","url":"https://www.academia.edu/Documents/in/Cobalt?f_ri=21731"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_840432" data-work_id="840432" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/840432/Finite_size_effects_in_ZnO_nanoparticles_An_electron_paramagnetic_resonance_EPR_analysis">Finite size effects in ZnO nanoparticles: An electron paramagnetic resonance (EPR) analysis</a></div></div><div class="u-pb4x u-mt3x"></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/840432" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="f3f046fdd78841270f3fd3f864bda9a9" rel="nofollow" data-download="{"attachment_id":30897420,"asset_id":840432,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/30897420/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="673216" href="https://uni-freiburg.academia.edu/EmreErdem">Emre Erdem</a><script data-card-contents-for-user="673216" type="text/json">{"id":673216,"first_name":"Emre","last_name":"Erdem","domain_name":"uni-freiburg","page_name":"EmreErdem","display_name":"Emre Erdem","profile_url":"https://uni-freiburg.academia.edu/EmreErdem?f_ri=21731","photo":"https://0.academia-photos.com/673216/235097/16292589/s65_emre.erdem.jpg"}</script></span></span></li><li class="js-paper-rank-work_840432 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="840432"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 840432, container: ".js-paper-rank-work_840432", }); });</script></li><li class="js-percentile-work_840432 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 840432; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_840432"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_840432 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="840432"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 840432; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=840432]").text(description); $(".js-view-count-work_840432").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_840432").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="840432"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">2</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="13621" rel="nofollow" href="https://www.academia.edu/Documents/in/Nanoparticles">Nanoparticles</a>, <script data-card-contents-for-ri="13621" type="text/json">{"id":13621,"name":"Nanoparticles","url":"https://www.academia.edu/Documents/in/Nanoparticles?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="21731" rel="nofollow" href="https://www.academia.edu/Documents/in/EPR_ESR">EPR, ESR</a><script data-card-contents-for-ri="21731" type="text/json">{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=840432]'), work: {"id":840432,"title":"Finite size effects in ZnO nanoparticles: An electron paramagnetic resonance (EPR) analysis","created_at":"2011-08-17T22:14:15.520-07:00","url":"https://www.academia.edu/840432/Finite_size_effects_in_ZnO_nanoparticles_An_electron_paramagnetic_resonance_EPR_analysis?f_ri=21731","dom_id":"work_840432","summary":null,"downloadable_attachments":[{"id":30897420,"asset_id":840432,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":673216,"first_name":"Emre","last_name":"Erdem","domain_name":"uni-freiburg","page_name":"EmreErdem","display_name":"Emre Erdem","profile_url":"https://uni-freiburg.academia.edu/EmreErdem?f_ri=21731","photo":"https://0.academia-photos.com/673216/235097/16292589/s65_emre.erdem.jpg"}],"research_interests":[{"id":13621,"name":"Nanoparticles","url":"https://www.academia.edu/Documents/in/Nanoparticles?f_ri=21731","nofollow":true},{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_13878807 coauthored" data-work_id="13878807" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/13878807/A_comparative_investigation_of_g_ray_and_C5_ion_beam_impact_on_thermoluminescence_response_of_Mg2BO3F_Dy_phosphor">A comparative investigation of g-ray and C5+ ion beam impact on thermoluminescence response of Mg2BO3F:Dy phosphor</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Mg2BO3F:Dy phosphor is a low Z material with an effective atomic number 9.92. This phosphor was synthesized by two different methods, because the solid state method failed to produce single phase Mg2BO3F:Dy phosphor. This study reports... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_13878807" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Mg2BO3F:Dy phosphor is a low Z material with an effective atomic number 9.92. This phosphor was <br />synthesized by two different methods, because the solid state method failed to produce single phase <br />Mg2BO3F:Dy phosphor. This study reports a comparative investigation of g-ray and C5þ ion beam impact <br />on thermoluminescence (TL) properties of Mg2BO3F:Dy phosphor. TRIM/SRIM calculations were performed to correlate the changes in TL properties of Mg2BO3F:Dy phosphor. Phosphor possesses good TL <br />response towards g-rays as well as C5þ ion beam irradiation. TL glow curves of the C5þ ion irradiated <br />phosphor show a small shift in the position of the glow peaks towards the lower temperature side. With <br />an increase in energy of the ion beam increase in TL intensity was observed. This increase in the TL <br />efficiency with a decrease in linear energy transfer (LET) agrees well with the results reported in literature. Trapping parameters of the g-ray and C5þ ion beam irradiated phosphor were calculated from the <br />TL data using computerized glow curve deconvolution method. The trapping analysis suggests that ion <br />beam irradiation causes only minor changes in the activation energy. The different types of defects <br />responsible for TL glow curves were identified using the EPR technique.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/13878807" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="618ba68dc9d66e1c0e568a7457fae1a4" rel="nofollow" data-download="{"attachment_id":38149972,"asset_id":13878807,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/38149972/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="33005195" href="https://gurunanakinstitutions.academia.edu/SDhoble">S. Dhoble</a><script data-card-contents-for-user="33005195" type="text/json">{"id":33005195,"first_name":"S.","last_name":"Dhoble","domain_name":"gurunanakinstitutions","page_name":"SDhoble","display_name":"S. Dhoble","profile_url":"https://gurunanakinstitutions.academia.edu/SDhoble?f_ri=21731","photo":"/images/s65_no_pic.png"}</script></span></span><span class="u-displayInlineBlock InlineList-item-text"> and <span class="u-textDecorationUnderline u-clickable InlineList-item-text js-work-more-authors-13878807">+1</span><div class="hidden js-additional-users-13878807"><div><span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a href="https://iisc.academia.edu/BhushanKore">Bhushan Kore</a></span></div></div></span><script>(function(){ var popoverSettings = { el: $('.js-work-more-authors-13878807'), placement: 'bottom', hide_delay: 200, html: true, content: function(){ return $('.js-additional-users-13878807').html(); } } new HoverPopover(popoverSettings); })();</script></li><li class="js-paper-rank-work_13878807 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="13878807"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 13878807, container: ".js-paper-rank-work_13878807", }); });</script></li><li class="js-percentile-work_13878807 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 13878807; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_13878807"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_13878807 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="13878807"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 13878807; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=13878807]").text(description); $(".js-view-count-work_13878807").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_13878807").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="13878807"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">4</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="20435" rel="nofollow" href="https://www.academia.edu/Documents/in/Ion_beam_irradiation_for_material_modification">Ion beam irradiation for material modification</a>, <script data-card-contents-for-ri="20435" type="text/json">{"id":20435,"name":"Ion beam irradiation for material modification","url":"https://www.academia.edu/Documents/in/Ion_beam_irradiation_for_material_modification?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="21731" rel="nofollow" href="https://www.academia.edu/Documents/in/EPR_ESR">EPR, ESR</a>, <script data-card-contents-for-ri="21731" type="text/json">{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="29617" rel="nofollow" href="https://www.academia.edu/Documents/in/Synchrotron_Radiation">Synchrotron Radiation</a>, <script data-card-contents-for-ri="29617" type="text/json">{"id":29617,"name":"Synchrotron Radiation","url":"https://www.academia.edu/Documents/in/Synchrotron_Radiation?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="80624" rel="nofollow" href="https://www.academia.edu/Documents/in/Thermoluminescence_Dosimetry">Thermoluminescence Dosimetry</a><script data-card-contents-for-ri="80624" type="text/json">{"id":80624,"name":"Thermoluminescence Dosimetry","url":"https://www.academia.edu/Documents/in/Thermoluminescence_Dosimetry?f_ri=21731","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=13878807]'), work: {"id":13878807,"title":"A comparative investigation of g-ray and C5+ ion beam impact on thermoluminescence response of Mg2BO3F:Dy phosphor","created_at":"2015-07-10T04:43:28.826-07:00","url":"https://www.academia.edu/13878807/A_comparative_investigation_of_g_ray_and_C5_ion_beam_impact_on_thermoluminescence_response_of_Mg2BO3F_Dy_phosphor?f_ri=21731","dom_id":"work_13878807","summary":"Mg2BO3F:Dy phosphor is a low Z material with an effective atomic number 9.92. This phosphor was\r\nsynthesized by two different methods, because the solid state method failed to produce single phase\r\nMg2BO3F:Dy phosphor. This study reports a comparative investigation of g-ray and C5þ ion beam impact\r\non thermoluminescence (TL) properties of Mg2BO3F:Dy phosphor. TRIM/SRIM calculations were performed to correlate the changes in TL properties of Mg2BO3F:Dy phosphor. Phosphor possesses good TL\r\nresponse towards g-rays as well as C5þ ion beam irradiation. TL glow curves of the C5þ ion irradiated\r\nphosphor show a small shift in the position of the glow peaks towards the lower temperature side. With\r\nan increase in energy of the ion beam increase in TL intensity was observed. This increase in the TL\r\nefficiency with a decrease in linear energy transfer (LET) agrees well with the results reported in literature. Trapping parameters of the g-ray and C5þ ion beam irradiated phosphor were calculated from the\r\nTL data using computerized glow curve deconvolution method. The trapping analysis suggests that ion\r\nbeam irradiation causes only minor changes in the activation energy. The different types of defects\r\nresponsible for TL glow curves were identified using the EPR technique.","downloadable_attachments":[{"id":38149972,"asset_id":13878807,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":33005195,"first_name":"S.","last_name":"Dhoble","domain_name":"gurunanakinstitutions","page_name":"SDhoble","display_name":"S. Dhoble","profile_url":"https://gurunanakinstitutions.academia.edu/SDhoble?f_ri=21731","photo":"/images/s65_no_pic.png"},{"id":9349127,"first_name":"Bhushan","last_name":"Kore","domain_name":"iisc","page_name":"BhushanKore","display_name":"Bhushan Kore","profile_url":"https://iisc.academia.edu/BhushanKore?f_ri=21731","photo":"https://0.academia-photos.com/9349127/2988829/23228411/s65_bhushan.kore.jpg"}],"research_interests":[{"id":20435,"name":"Ion beam irradiation for material modification","url":"https://www.academia.edu/Documents/in/Ion_beam_irradiation_for_material_modification?f_ri=21731","nofollow":true},{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true},{"id":29617,"name":"Synchrotron Radiation","url":"https://www.academia.edu/Documents/in/Synchrotron_Radiation?f_ri=21731","nofollow":true},{"id":80624,"name":"Thermoluminescence Dosimetry","url":"https://www.academia.edu/Documents/in/Thermoluminescence_Dosimetry?f_ri=21731","nofollow":true}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_44140405" data-work_id="44140405" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/44140405/MATTERS_ARISING_PETRALONA_CAVE">MATTERS ARISING PETRALONA CAVE</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">IN their recent investigation of the age of the Petralona skull using electron spin resonance (ESR), Hennig et al. compared the results of 234U / 23oTh dating, of the top travertine floor in the area where the skull rested. It is hoped... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_44140405" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">IN their recent investigation of the age of the Petralona skull using electron spin resonance (ESR), Hennig et al. compared<br />the results of 234U / 23oTh dating, of the top travertine floor in the area where the skull rested. It is hoped that the contribution of the 234U/Th230 dates (corrected for its detrital residues) to ESR results will<br />clarify matters and be a step forward innresolving this controversy.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/44140405" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="f9d5b44efd979b2c12f630fb28acdb20" rel="nofollow" data-download="{"attachment_id":64493575,"asset_id":44140405,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/64493575/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="425342" href="https://nwpu.academia.edu/IOANNISLIRITZIS">IOANNIS LIRITZIS</a><script data-card-contents-for-user="425342" type="text/json">{"id":425342,"first_name":"IOANNIS","last_name":"LIRITZIS","domain_name":"nwpu","page_name":"IOANNISLIRITZIS","display_name":"IOANNIS LIRITZIS","profile_url":"https://nwpu.academia.edu/IOANNISLIRITZIS?f_ri=21731","photo":"https://0.academia-photos.com/425342/2629320/33655202/s65_ioannis.liritzis.jpg"}</script></span></span></li><li class="js-paper-rank-work_44140405 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="44140405"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 44140405, container: ".js-paper-rank-work_44140405", }); });</script></li><li class="js-percentile-work_44140405 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 44140405; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_44140405"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_44140405 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="44140405"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 44140405; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=44140405]").text(description); $(".js-view-count-work_44140405").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_44140405").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="44140405"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">11</a>  </div><span class="InlineList-item-text u-textTruncate u-pl10x"><a class="InlineList-item-text" data-has-card-for-ri="772" rel="nofollow" href="https://www.academia.edu/Documents/in/Human_Evolution">Human Evolution</a>, <script data-card-contents-for-ri="772" type="text/json">{"id":772,"name":"Human Evolution","url":"https://www.academia.edu/Documents/in/Human_Evolution?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="4548" rel="nofollow" href="https://www.academia.edu/Documents/in/Palaeolithic_Archaeology">Palaeolithic Archaeology</a>, <script data-card-contents-for-ri="4548" type="text/json">{"id":4548,"name":"Palaeolithic Archaeology","url":"https://www.academia.edu/Documents/in/Palaeolithic_Archaeology?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="21731" rel="nofollow" href="https://www.academia.edu/Documents/in/EPR_ESR">EPR, ESR</a>, <script data-card-contents-for-ri="21731" type="text/json">{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="27936" rel="nofollow" href="https://www.academia.edu/Documents/in/Archaeology_of_Caves_and_Caverns_Archaeospeleology_">Archaeology of Caves and Caverns (Archaeospeleology)</a><script data-card-contents-for-ri="27936" type="text/json">{"id":27936,"name":"Archaeology of Caves and Caverns (Archaeospeleology)","url":"https://www.academia.edu/Documents/in/Archaeology_of_Caves_and_Caverns_Archaeospeleology_?f_ri=21731","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=44140405]'), work: {"id":44140405,"title":"MATTERS ARISING PETRALONA CAVE","created_at":"2020-09-22T07:21:30.962-07:00","url":"https://www.academia.edu/44140405/MATTERS_ARISING_PETRALONA_CAVE?f_ri=21731","dom_id":"work_44140405","summary":"IN their recent investigation of the age of the Petralona skull using electron spin resonance (ESR), Hennig et al. compared\nthe results of 234U / 23oTh dating, of the top travertine floor in the area where the skull rested. It is hoped that the contribution of the 234U/Th230 dates (corrected for its detrital residues) to ESR results will\nclarify matters and be a step forward innresolving this controversy.","downloadable_attachments":[{"id":64493575,"asset_id":44140405,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":425342,"first_name":"IOANNIS","last_name":"LIRITZIS","domain_name":"nwpu","page_name":"IOANNISLIRITZIS","display_name":"IOANNIS LIRITZIS","profile_url":"https://nwpu.academia.edu/IOANNISLIRITZIS?f_ri=21731","photo":"https://0.academia-photos.com/425342/2629320/33655202/s65_ioannis.liritzis.jpg"}],"research_interests":[{"id":772,"name":"Human Evolution","url":"https://www.academia.edu/Documents/in/Human_Evolution?f_ri=21731","nofollow":true},{"id":4548,"name":"Palaeolithic Archaeology","url":"https://www.academia.edu/Documents/in/Palaeolithic_Archaeology?f_ri=21731","nofollow":true},{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true},{"id":27936,"name":"Archaeology of Caves and Caverns (Archaeospeleology)","url":"https://www.academia.edu/Documents/in/Archaeology_of_Caves_and_Caverns_Archaeospeleology_?f_ri=21731","nofollow":true},{"id":28126,"name":"Neanderthals (Palaeolithic Archaeology)","url":"https://www.academia.edu/Documents/in/Neanderthals_Palaeolithic_Archaeology_?f_ri=21731"},{"id":30496,"name":"Speleothems","url":"https://www.academia.edu/Documents/in/Speleothems?f_ri=21731"},{"id":35867,"name":"Speleology","url":"https://www.academia.edu/Documents/in/Speleology?f_ri=21731"},{"id":60491,"name":"Uranium series dating","url":"https://www.academia.edu/Documents/in/Uranium_series_dating?f_ri=21731"},{"id":106896,"name":"Cave and Karst Studies","url":"https://www.academia.edu/Documents/in/Cave_and_Karst_Studies?f_ri=21731"},{"id":170280,"name":"Speleoarchaeology","url":"https://www.academia.edu/Documents/in/Speleoarchaeology?f_ri=21731"},{"id":490041,"name":"Archeology and Speleology","url":"https://www.academia.edu/Documents/in/Archeology_and_Speleology?f_ri=21731"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_17269734" data-work_id="17269734" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/17269734/73Ge_17O_and_29Si_hyperfine_interactions_of_the_Ge_E1_center_in_crystalline_SiO2">73Ge, 17O and 29Si hyperfine interactions of the Ge E'1 center in crystalline SiO2</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Single-crystal EPR DFT 17 O hyperfine Oxygen vacancy a b s t r a c t E 0 centers as fundamental radiation-induced defects in amorphous and crystalline SiO 2 have been thought to be related to oxygen vacancies for >50 years. However,... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_17269734" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Single-crystal EPR DFT 17 O hyperfine Oxygen vacancy a b s t r a c t E 0 centers as fundamental radiation-induced defects in amorphous and crystalline SiO 2 have been thought to be related to oxygen vacancies for >50 years. However, direct proof for oxygen vacancies from experimental 17 O hyperfine data has never been provided. In this contribution, we report on the most complete set of spin Hamiltonian parameter matrices g, A( 73 Ge), P( 73 Ge), A( 17 O), and A( 29 Si) for the Ge analog of the classic E 0 1 center (denoted Ge E 0 1 ), determined from single-crystal electron paramagnetic resonance (EPR) analyses of two fast-electron-irradiated, Ge-doped a-quartz samples, including one grown from 17 O-enriched water. These experimental data, particularly the three distinct matrices A( 17 O), not only confirm the Ge E 0 1 center to represent spin trapping on a substitutional Ge atom coordinated to three nonequivalent nearest-neighbor O atoms (i.e., the Å Ge"O moiety involving an oxygen vacancy) and two next-nearest-neighbor Si atoms but also permit determination of the spin population on all of these atoms. These EPR data also have been evaluated by periodic density functional theory (DFT) calculations to demonstrate that the widely popular single-oxygen-vacancy V(O) + model for the Ge E 0 1 center cannot account for A( 17 O) arising from three nonequivalent nearest-neighbor oxygen atoms. A new tri-vacancy with an Al impurity model V(SiO 2 ) Al , on the other hand, reproduces all the EPR experimental hyperfine matrices A( 73 Ge), A( 17 O), and A( 29 Si) and explains the common associations of the E 0 centers with both Al related defects and superoxide/peroxy radicals in quartz and amorphous silica.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/17269734" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="23acb38d416d0bb206aa0d790c85d155" rel="nofollow" data-download="{"attachment_id":39409077,"asset_id":17269734,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/39409077/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="36907166" href="https://iggcas.academia.edu/RudolfMashkovtsev">Rudolf Mashkovtsev</a><script data-card-contents-for-user="36907166" type="text/json">{"id":36907166,"first_name":"Rudolf","last_name":"Mashkovtsev","domain_name":"iggcas","page_name":"RudolfMashkovtsev","display_name":"Rudolf Mashkovtsev","profile_url":"https://iggcas.academia.edu/RudolfMashkovtsev?f_ri=21731","photo":"https://0.academia-photos.com/36907166/10528490/11749446/s65_rudolf.mashkovtsev.jpg"}</script></span></span></li><li class="js-paper-rank-work_17269734 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="17269734"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 17269734, container: ".js-paper-rank-work_17269734", }); 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$(".js-view-count[data-work-id=17269734]").text(description); $(".js-view-count-work_17269734").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_17269734").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="17269734"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">4</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="21731" rel="nofollow" href="https://www.academia.edu/Documents/in/EPR_ESR">EPR, ESR</a>, <script data-card-contents-for-ri="21731" type="text/json">{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="40644" rel="nofollow" href="https://www.academia.edu/Documents/in/Ab_initio_calculations">Ab initio calculations</a>, <script data-card-contents-for-ri="40644" type="text/json">{"id":40644,"name":"Ab initio calculations","url":"https://www.academia.edu/Documents/in/Ab_initio_calculations?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="74607" rel="nofollow" href="https://www.academia.edu/Documents/in/Quartz">Quartz</a>, <script data-card-contents-for-ri="74607" type="text/json">{"id":74607,"name":"Quartz","url":"https://www.academia.edu/Documents/in/Quartz?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="77601" rel="nofollow" href="https://www.academia.edu/Documents/in/DFT_calculation">DFT calculation</a><script data-card-contents-for-ri="77601" type="text/json">{"id":77601,"name":"DFT calculation","url":"https://www.academia.edu/Documents/in/DFT_calculation?f_ri=21731","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=17269734]'), work: {"id":17269734,"title":"73Ge, 17O and 29Si hyperfine interactions of the Ge E'1 center in crystalline SiO2","created_at":"2015-10-25T03:31:29.899-07:00","url":"https://www.academia.edu/17269734/73Ge_17O_and_29Si_hyperfine_interactions_of_the_Ge_E1_center_in_crystalline_SiO2?f_ri=21731","dom_id":"work_17269734","summary":"Single-crystal EPR DFT 17 O hyperfine Oxygen vacancy a b s t r a c t E 0 centers as fundamental radiation-induced defects in amorphous and crystalline SiO 2 have been thought to be related to oxygen vacancies for \u003e50 years. However, direct proof for oxygen vacancies from experimental 17 O hyperfine data has never been provided. In this contribution, we report on the most complete set of spin Hamiltonian parameter matrices g, A( 73 Ge), P( 73 Ge), A( 17 O), and A( 29 Si) for the Ge analog of the classic E 0 1 center (denoted Ge E 0 1 ), determined from single-crystal electron paramagnetic resonance (EPR) analyses of two fast-electron-irradiated, Ge-doped a-quartz samples, including one grown from 17 O-enriched water. These experimental data, particularly the three distinct matrices A( 17 O), not only confirm the Ge E 0 1 center to represent spin trapping on a substitutional Ge atom coordinated to three nonequivalent nearest-neighbor O atoms (i.e., the Å Ge\"O moiety involving an oxygen vacancy) and two next-nearest-neighbor Si atoms but also permit determination of the spin population on all of these atoms. These EPR data also have been evaluated by periodic density functional theory (DFT) calculations to demonstrate that the widely popular single-oxygen-vacancy V(O) + model for the Ge E 0 1 center cannot account for A( 17 O) arising from three nonequivalent nearest-neighbor oxygen atoms. A new tri-vacancy with an Al impurity model V(SiO 2 ) Al , on the other hand, reproduces all the EPR experimental hyperfine matrices A( 73 Ge), A( 17 O), and A( 29 Si) and explains the common associations of the E 0 centers with both Al related defects and superoxide/peroxy radicals in quartz and amorphous silica.","downloadable_attachments":[{"id":39409077,"asset_id":17269734,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":36907166,"first_name":"Rudolf","last_name":"Mashkovtsev","domain_name":"iggcas","page_name":"RudolfMashkovtsev","display_name":"Rudolf Mashkovtsev","profile_url":"https://iggcas.academia.edu/RudolfMashkovtsev?f_ri=21731","photo":"https://0.academia-photos.com/36907166/10528490/11749446/s65_rudolf.mashkovtsev.jpg"}],"research_interests":[{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true},{"id":40644,"name":"Ab initio calculations","url":"https://www.academia.edu/Documents/in/Ab_initio_calculations?f_ri=21731","nofollow":true},{"id":74607,"name":"Quartz","url":"https://www.academia.edu/Documents/in/Quartz?f_ri=21731","nofollow":true},{"id":77601,"name":"DFT calculation","url":"https://www.academia.edu/Documents/in/DFT_calculation?f_ri=21731","nofollow":true}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_14330235 coauthored" data-work_id="14330235" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/14330235/The_quaternary_coversands_of_southwest_France">The quaternary coversands of southwest France</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Detailed stratigraphic analysis and numerical dating (OSL, IRSL, ESR, 14C) of Pleistocene coversands in southwest France enable the construction of a renewed chronostratigraphic framework for sand deposition. The chronological data... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_14330235" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Detailed stratigraphic analysis and numerical dating (OSL, IRSL, ESR, 14C) of Pleistocene coversands in <br />southwest France enable the construction of a renewed chronostratigraphic framework for sand deposition. <br />The chronological data obtained from sandsheet units testify to the development of transgressive <br />dunefields since at least the Middle Pleistocene (MIS 10). Three main phases of accumulation occurred <br />during the Last Glacial. The oldest one (64e42 ka) is associated with wet sandsheet facies, histic horizons <br />and zibar-type dune fields, which reflect deposition in a context strongly influenced by the groundwater <br />table. The Late Pleniglacial (24e14 ka) corresponds to the main phase of coversand extension in a drier <br />context. Silty gley horizons suggest, however, local interruptions of sand drifting during GS 2.1. Lateglacial <br />stabilization of the coversands may not have occurred before GI-1c (Allerød), which was typified <br />by the development of cumulic arenosols. These were covered by parabolic dunes during the Younger <br />Dryas. The variations in extent of the emerged continental shelf during the glacialeinterglacial cycles <br />may explain the uneven geographical distribution of sand deposition through time. Because of coastline <br />retreat up to 100 km north of 45N during the LGM lowstand, the coversands were unable to reach the <br />northern part of the basin. Comparison with other European regions highlights stronger affinities of the <br />French record with Portugal than with the Netherlands and Great Britain, probably because of reduced <br />influence of permafrost.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/14330235" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="caf59b64774a1700835841c8ba1d7be0" rel="nofollow" data-download="{"attachment_id":38270290,"asset_id":14330235,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/38270290/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="7716384" href="https://ta.academia.edu/LucaSitzia">Luca Sitzia</a><script data-card-contents-for-user="7716384" type="text/json">{"id":7716384,"first_name":"Luca","last_name":"Sitzia","domain_name":"ta","page_name":"LucaSitzia","display_name":"Luca Sitzia","profile_url":"https://ta.academia.edu/LucaSitzia?f_ri=21731","photo":"https://0.academia-photos.com/7716384/3731197/4371212/s65_luca.sitzia.jpg"}</script></span></span><span class="u-displayInlineBlock InlineList-item-text"> and <span class="u-textDecorationUnderline u-clickable InlineList-item-text js-work-more-authors-14330235">+2</span><div class="hidden js-additional-users-14330235"><div><span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a href="https://independent.academia.edu/GuillaumedeLafontaine">Guillaume de Lafontaine</a></span></div><div><span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a href="https://univ-tlse2.academia.edu/Magdatisproject">Magdatis project</a></span></div></div></span><script>(function(){ var popoverSettings = { el: $('.js-work-more-authors-14330235'), placement: 'bottom', hide_delay: 200, html: true, content: function(){ return $('.js-additional-users-14330235').html(); 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container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_14330235 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="14330235"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 14330235; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=14330235]").text(description); $(".js-view-count-work_14330235").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_14330235").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="14330235"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">10</a>  </div><span class="InlineList-item-text u-textTruncate u-pl10x"><a class="InlineList-item-text" data-has-card-for-ri="292" rel="nofollow" href="https://www.academia.edu/Documents/in/Palaeoclimatology">Palaeoclimatology</a>, <script data-card-contents-for-ri="292" type="text/json">{"id":292,"name":"Palaeoclimatology","url":"https://www.academia.edu/Documents/in/Palaeoclimatology?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="406" rel="nofollow" href="https://www.academia.edu/Documents/in/Geology">Geology</a>, <script data-card-contents-for-ri="406" type="text/json">{"id":406,"name":"Geology","url":"https://www.academia.edu/Documents/in/Geology?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="408" rel="nofollow" href="https://www.academia.edu/Documents/in/Geomorphology">Geomorphology</a>, <script data-card-contents-for-ri="408" type="text/json">{"id":408,"name":"Geomorphology","url":"https://www.academia.edu/Documents/in/Geomorphology?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="420" rel="nofollow" href="https://www.academia.edu/Documents/in/Sedimentology">Sedimentology</a><script data-card-contents-for-ri="420" type="text/json">{"id":420,"name":"Sedimentology","url":"https://www.academia.edu/Documents/in/Sedimentology?f_ri=21731","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=14330235]'), work: {"id":14330235,"title":"The quaternary coversands of southwest France","created_at":"2015-07-23T06:33:31.150-07:00","url":"https://www.academia.edu/14330235/The_quaternary_coversands_of_southwest_France?f_ri=21731","dom_id":"work_14330235","summary":"Detailed stratigraphic analysis and numerical dating (OSL, IRSL, ESR, 14C) of Pleistocene coversands in\r\nsouthwest France enable the construction of a renewed chronostratigraphic framework for sand deposition.\r\nThe chronological data obtained from sandsheet units testify to the development of transgressive\r\ndunefields since at least the Middle Pleistocene (MIS 10). Three main phases of accumulation occurred\r\nduring the Last Glacial. The oldest one (64e42 ka) is associated with wet sandsheet facies, histic horizons\r\nand zibar-type dune fields, which reflect deposition in a context strongly influenced by the groundwater\r\ntable. The Late Pleniglacial (24e14 ka) corresponds to the main phase of coversand extension in a drier\r\ncontext. Silty gley horizons suggest, however, local interruptions of sand drifting during GS 2.1. Lateglacial\r\nstabilization of the coversands may not have occurred before GI-1c (Allerød), which was typified\r\nby the development of cumulic arenosols. These were covered by parabolic dunes during the Younger\r\nDryas. The variations in extent of the emerged continental shelf during the glacialeinterglacial cycles\r\nmay explain the uneven geographical distribution of sand deposition through time. Because of coastline\r\nretreat up to 100 km north of 45\u0001N during the LGM lowstand, the coversands were unable to reach the\r\nnorthern part of the basin. Comparison with other European regions highlights stronger affinities of the\r\nFrench record with Portugal than with the Netherlands and Great Britain, probably because of reduced\r\ninfluence of permafrost.","downloadable_attachments":[{"id":38270290,"asset_id":14330235,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":7716384,"first_name":"Luca","last_name":"Sitzia","domain_name":"ta","page_name":"LucaSitzia","display_name":"Luca Sitzia","profile_url":"https://ta.academia.edu/LucaSitzia?f_ri=21731","photo":"https://0.academia-photos.com/7716384/3731197/4371212/s65_luca.sitzia.jpg"},{"id":31296363,"first_name":"Guillaume de","last_name":"Lafontaine","domain_name":"independent","page_name":"GuillaumedeLafontaine","display_name":"Guillaume de Lafontaine","profile_url":"https://independent.academia.edu/GuillaumedeLafontaine?f_ri=21731","photo":"/images/s65_no_pic.png"},{"id":3374250,"first_name":"Magdatis","last_name":"project","domain_name":"univ-tlse2","page_name":"Magdatisproject","display_name":"Magdatis project","profile_url":"https://univ-tlse2.academia.edu/Magdatisproject?f_ri=21731","photo":"https://0.academia-photos.com/3374250/1136005/1423538/s65_magdatis.project.jpg"}],"research_interests":[{"id":292,"name":"Palaeoclimatology","url":"https://www.academia.edu/Documents/in/Palaeoclimatology?f_ri=21731","nofollow":true},{"id":406,"name":"Geology","url":"https://www.academia.edu/Documents/in/Geology?f_ri=21731","nofollow":true},{"id":408,"name":"Geomorphology","url":"https://www.academia.edu/Documents/in/Geomorphology?f_ri=21731","nofollow":true},{"id":420,"name":"Sedimentology","url":"https://www.academia.edu/Documents/in/Sedimentology?f_ri=21731","nofollow":true},{"id":20614,"name":"OSL dating","url":"https://www.academia.edu/Documents/in/OSL_dating?f_ri=21731"},{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731"},{"id":41239,"name":"Bayesian statistics \u0026 modelling","url":"https://www.academia.edu/Documents/in/Bayesian_statistics_and_modelling?f_ri=21731"},{"id":60446,"name":"Quaternary Sedimentology and Geomorphology","url":"https://www.academia.edu/Documents/in/Quaternary_Sedimentology_and_Geomorphology?f_ri=21731"},{"id":444015,"name":"Aeolian sedimentology","url":"https://www.academia.edu/Documents/in/Aeolian_sedimentology?f_ri=21731"},{"id":629014,"name":"Palaeopedology","url":"https://www.academia.edu/Documents/in/Palaeopedology?f_ri=21731"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_20702579" data-work_id="20702579" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/20702579/A_Mechanistic_Study_of_Photoinduced_Electron_Transfer_from_Triplet_Erythrosin_to_Various_Quinones_Using_Time_Resolved_Absorption_and_ESR_CIDEP_Measurements">A Mechanistic Study of Photoinduced Electron Transfer from Triplet Erythrosin to Various Quinones Using Time Resolved Absorption and ESR-CIDEP Measurements</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Photoinduced electron transfer reactions from the triplet erythrosin (Ery 2−) dianion to various quinones (1,4-benzoquinone, 2,5-di-t-butyl-1,4-benzo-quinone, duroquinone, 2,5-dichloro-1,4-benzoquinone, chloranil, bromanil,... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_20702579" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Photoinduced electron transfer reactions from the triplet erythrosin (Ery 2−) dianion to various quinones (1,4-benzoquinone, 2,5-di-t-butyl-1,4-benzo-quinone, duroquinone, 2,5-dichloro-1,4-benzoquinone, chloranil, bromanil, 2,3-dichloro-5,6-dicyano-1,4-benzoquinone and 9,10-anthraquinone) and other organic acceptors like 7,7,8,8-tetracyanoquinodimethane, 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane and with tetracyano-1,4-benzoquinone (cyanil), one of the strongest oxidizing agent reported in literature (í µí°¸∘ = 0.90 V vs. SCE), were studied by laser flash photolysis in acetonitrile/water mixtures at room temperature. Quenching rate constants are obtained from Stern-Volmer plots. The measured bimolecular quenching rate constants are close to the diffusion controlled rates. Excitation of a contact radical-pair or a triplet exciplex as an intermediate in the photoinduced electron transfer reaction in a slightly polar solvent (1-propanol) is confirmed by the observation of the net absorptive chemically induced dynamic electron polarization (CIDEP) spectra. The unusual net–absorptive CIDEP spectrum is explained by spin-orbit coupling interactions due to presence of four iodine atoms in the structure of erythrosin (heavy atom effect). The dependence of the electron transfer rate constants, í µí± et , on the driving force, Δí µí°º et is slightly parabolic and indicates the Marcus Inverted Region.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/20702579" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="eaa34d1c64234cda37088a8ede574baf" rel="nofollow" data-download="{"attachment_id":41514275,"asset_id":20702579,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/41514275/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="87585" href="https://uaf-pk.academia.edu/MuhammadZahid">Dr. Muhammad Zahid</a><script data-card-contents-for-user="87585" type="text/json">{"id":87585,"first_name":"Dr. Muhammad","last_name":"Zahid","domain_name":"uaf-pk","page_name":"MuhammadZahid","display_name":"Dr. Muhammad Zahid","profile_url":"https://uaf-pk.academia.edu/MuhammadZahid?f_ri=21731","photo":"/images/s65_no_pic.png"}</script></span></span></li><li class="js-paper-rank-work_20702579 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="20702579"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 20702579, container: ".js-paper-rank-work_20702579", }); 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Quenching rate constants are obtained from Stern-Volmer plots. The measured bimolecular quenching rate constants are close to the diffusion controlled rates. Excitation of a contact radical-pair or a triplet exciplex as an intermediate in the photoinduced electron transfer reaction in a slightly polar solvent (1-propanol) is confirmed by the observation of the net absorptive chemically induced dynamic electron polarization (CIDEP) spectra. The unusual net–absorptive CIDEP spectrum is explained by spin-orbit coupling interactions due to presence of four iodine atoms in the structure of erythrosin (heavy atom effect). The dependence of the electron transfer rate constants, í µí± et , on the driving force, Δí µí°º et is slightly parabolic and indicates the Marcus Inverted Region.","downloadable_attachments":[{"id":41514275,"asset_id":20702579,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":87585,"first_name":"Dr. Muhammad","last_name":"Zahid","domain_name":"uaf-pk","page_name":"MuhammadZahid","display_name":"Dr. Muhammad Zahid","profile_url":"https://uaf-pk.academia.edu/MuhammadZahid?f_ri=21731","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true},{"id":83359,"name":"Electron Transfer","url":"https://www.academia.edu/Documents/in/Electron_Transfer?f_ri=21731","nofollow":true},{"id":142116,"name":"Quinones","url":"https://www.academia.edu/Documents/in/Quinones?f_ri=21731","nofollow":true},{"id":1161532,"name":"Time-resolved Spectroscopy","url":"https://www.academia.edu/Documents/in/Time-resolved_Spectroscopy?f_ri=21731","nofollow":true}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_684182" data-work_id="684182" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/684182/Electromagnetic_properties_of_single_walled_carbon_nanotubes_investigated_by_microwave_absorption">Electromagnetic properties of single-walled carbon nanotubes investigated by microwave absorption</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Due to their unique properties, single-walled carbon nanotubes (SWNT) are very interesting candidates for the development of new electronic devices. Some of these properties, e.g., a possible transition to a superconducting phase or the... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_684182" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Due to their unique properties, single-walled carbon nanotubes (SWNT) are very interesting candidates for the development of new electronic devices. Some of these properties, e.g., a possible transition to a superconducting phase or the existence of ordered magnetic states, are still under investigation and intensively discussed. Macroscopic amounts of SWNT can hitherto only be obtained as mixtures of tubes of different electronic properties. Therefore researchers have always been interested in a simple, fast, and reliable screeningmethod to detect the signatures of metallic or semiconducting SWNT. It is assumed quite generally that these “standard” electronic properties can be identified rather easily. In contrast to this, the above mentioned “unconventional” properties, i.e., superconductivity and magnetism, are anticipated to arise only in a small fraction of the nanotubes. Furthermore these features might be influenced by impurities, topological defects, or intertube interactions. Due to this fact, the sought-after screening method should be able to resolve the correlated signatures selectively, even if they are masked by other constituents in the sample. This study invokes microwave absorption, both in its resonant (electron paramagnetic resonance) and in its non-resonant variant (cavity perturbation). This method represents a versatile and selective tool to characterize magnetic and electronic phases and occurrent transitions. Whereas metallic SWNT are intrinsically paramagnetic due to Pauli paramagnetism, ideal semiconducting tubes are diamagnetic and therefore not accessible to electron paramagnetic resonance (EPR). Nevertheless extrinsic and intrinsic temperature-activated defects can introduce paramagnetic states observable by EPR. In additional experiments, nitrogen encapsulated in C60 has been incorporated inside SWNT as a paramagnetic probe, forming so called peapods. The synthesis of these N@C60 peapods allows the examination of the electromagnetic properties of the SWNT “from the inside” by EPR. In early studies, the EPR signal of SWNT grown by the electric arc-discharge method was masked by spurious signals of the catalyst remaining in the sample. By using nanotubes grown by a special chemical vapor deposition (CVD) technique, samples could be investigated which were almost catalyst-free. Thus it was possible to study the electronic properties of different types of SWNT over a wide temperature range by EPR. The high-temperature signals are dominated by itinerant spins. They result from the temperature activated delocalization of shallow defect states. At low temperatures, these charge carriers get trapped at specific sites. This trapping leads to a strong magnetic resonance of localized electron spins. Furthermore, no indication of the existence of elements different than carbon can be detected in the sample. This was proven by continuous wave (c.w.) EPR and also by modern techniques of pulsed EPR. Non-resonant microwave absorption is introduced as a powerful tool to study the electronic conductivity of bulk samples of SWNT. A custom microwave bridge was constructed therefore. By evoking this method, the temperature dependence of the complex resistivity at T > 20 K could be attributed to the existence of pseudo-metallic or small-band-gap semiconducting tubes. At T ≈ 12 K the transition from a non-linear dissipative state at low temperature to a conventional Ohmic loss behavior is observed. This transition is taken as an indication for the formation of superconducting domains in small parts of the sample. Furthermore, the existence of a weak ferromagnetic signal is detected via alternating current (AC) magnetization measurements. The features of this ferromagnetism, i.e., weak magnetization, low saturation field, and the absence of hysteresis effects, exclude remaining iron catalyst as source of this observation. Instead, the cooperative magnetism might arise from an intrinsic exchange interaction in SWNT.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/684182" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="cbeca10393116ac2af50373e3ad9ddd3" rel="nofollow" data-download="{"attachment_id":6339974,"asset_id":684182,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/6339974/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="163937" href="https://uni-frankfurt.academia.edu/BjoernCorzilius">Björn Corzilius</a><script data-card-contents-for-user="163937" type="text/json">{"id":163937,"first_name":"Björn","last_name":"Corzilius","domain_name":"uni-frankfurt","page_name":"BjoernCorzilius","display_name":"Björn Corzilius","profile_url":"https://uni-frankfurt.academia.edu/BjoernCorzilius?f_ri=21731","photo":"/images/s65_no_pic.png"}</script></span></span></li><li class="js-paper-rank-work_684182 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="684182"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 684182, container: ".js-paper-rank-work_684182", }); 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Some of these properties, e.g., a possible transition to a superconducting phase or the existence of ordered magnetic states, are still under investigation and intensively discussed. Macroscopic amounts of SWNT can hitherto only be obtained as mixtures of tubes of different electronic properties. Therefore researchers have always been interested in a simple, fast, and reliable screeningmethod to detect the signatures of metallic or semiconducting SWNT. It is assumed quite generally that these “standard” electronic properties can be identified rather easily. In contrast to this, the above mentioned “unconventional” properties, i.e., superconductivity and magnetism, are anticipated to arise only in a small fraction of the nanotubes. Furthermore these features might be influenced by impurities, topological defects, or intertube interactions. Due to this fact, the sought-after screening method should be able to resolve the correlated signatures selectively, even if they are masked by other constituents in the sample. This study invokes microwave absorption, both in its resonant (electron paramagnetic resonance) and in its non-resonant variant (cavity perturbation). This method represents a versatile and selective tool to characterize magnetic and electronic phases and occurrent transitions. Whereas metallic SWNT are intrinsically paramagnetic due to Pauli paramagnetism, ideal semiconducting tubes are diamagnetic and therefore not accessible to electron paramagnetic resonance (EPR). Nevertheless extrinsic and intrinsic temperature-activated defects can introduce paramagnetic states observable by EPR. In additional experiments, nitrogen encapsulated in C60 has been incorporated inside SWNT as a paramagnetic probe, forming so called peapods. The synthesis of these N@C60 peapods allows the examination of the electromagnetic properties of the SWNT “from the inside” by EPR. In early studies, the EPR signal of SWNT grown by the electric arc-discharge method was masked by spurious signals of the catalyst remaining in the sample. By using nanotubes grown by a special chemical vapor deposition (CVD) technique, samples could be investigated which were almost catalyst-free. Thus it was possible to study the electronic properties of different types of SWNT over a wide temperature range by EPR. The high-temperature signals are dominated by itinerant spins. They result from the temperature activated delocalization of shallow defect states. At low temperatures, these charge carriers get trapped at specific sites. This trapping leads to a strong magnetic resonance of localized electron spins. Furthermore, no indication of the existence of elements different than carbon can be detected in the sample. This was proven by continuous wave (c.w.) EPR and also by modern techniques of pulsed EPR. Non-resonant microwave absorption is introduced as a powerful tool to study the electronic conductivity of bulk samples of SWNT. A custom microwave bridge was constructed therefore. By evoking this method, the temperature dependence of the complex resistivity at T \u003e 20 K could be attributed to the existence of pseudo-metallic or small-band-gap semiconducting tubes. At T ≈ 12 K the transition from a non-linear dissipative state at low temperature to a conventional Ohmic loss behavior is observed. This transition is taken as an indication for the formation of superconducting domains in small parts of the sample. Furthermore, the existence of a weak ferromagnetic signal is detected via alternating current (AC) magnetization measurements. The features of this ferromagnetism, i.e., weak magnetization, low saturation field, and the absence of hysteresis effects, exclude remaining iron catalyst as source of this observation. Instead, the cooperative magnetism might arise from an intrinsic exchange interaction in SWNT.","downloadable_attachments":[{"id":6339974,"asset_id":684182,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":163937,"first_name":"Björn","last_name":"Corzilius","domain_name":"uni-frankfurt","page_name":"BjoernCorzilius","display_name":"Björn Corzilius","profile_url":"https://uni-frankfurt.academia.edu/BjoernCorzilius?f_ri=21731","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":6469,"name":"Superconductivity","url":"https://www.academia.edu/Documents/in/Superconductivity?f_ri=21731","nofollow":true},{"id":10909,"name":"Carbon Nanotubes","url":"https://www.academia.edu/Documents/in/Carbon_Nanotubes?f_ri=21731","nofollow":true},{"id":11541,"name":"Graphene","url":"https://www.academia.edu/Documents/in/Graphene?f_ri=21731","nofollow":true},{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true},{"id":53354,"name":"Fullerenes","url":"https://www.academia.edu/Documents/in/Fullerenes?f_ri=21731"},{"id":72820,"name":"Graphite","url":"https://www.academia.edu/Documents/in/Graphite?f_ri=21731"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_38537327" data-work_id="38537327" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/38537327/Light_emitting_spin_Active_electronic_states_in_Ultra_thin_Mn_Doped_Cdse_Layered_Nanosheets">Light emitting spin Active electronic states in Ultra-thin Mn Doped Cdse Layered Nanosheets</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">the layered nanosheets exhibit a variety of physical and optical properties originating from amalgamation of intra-and inter-layer electronic interactions, which makes them promising materials for advanced devices with varsatile... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_38537327" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">the layered nanosheets exhibit a variety of physical and optical properties originating from amalgamation of intra-and inter-layer electronic interactions, which makes them promising materials for advanced devices with varsatile controlling channels. In particular, the dilute magnetic semiconductor multilayered nanosheets have promising optical, electrical and magnetic properties that have been less explored so far. Here, the spin permissible optical properties from solvothermally grown Mn doped CdSe (thickness ~2.26 nm) multilayered nanosheets are reported on. The presence of multi-phase magnetic orderings with a sharp ferromagnetic transition at temperature ~48 K pertinent to the stabilization and coexistence of Mn 2+ and Mn 3+ based local phases have been observed from the (Cd,Mn)Se layered nanosheets corroborating to the x-ray absorption near edge structure, electron paramagnetic resonance, Raman scattering and magnetic measurements. the optical absorption and photoluminescence (PL) studies at room temperature affirm wide array of optical properties in the visible regime corresponding to the band edge and intriguing dopant-phase mediated spin approved transitions. The circularly polarized magneto-PL and life time analysis exhibits the spin-polarized fast radiative transitions confirming the presence of spin-active electronic states. The two-dimensional (2D) semiconductors 1 and doping effect in its layered structures are an active domain of research to offer advanced optical 2 , conductive 3 and magnetic properties 4,5 as a prospect of new generation device applications. Simultaneously, no effective methods of enhancing the sensitivity of these materials with reference to the external field has been established so far. Skillful doping of transition metal ions in nanostructures alter their spin degrees of freedom with promising giant Zeeman splitting 3,6 , magneto-optical 7 and fast spin-lattice dynamics 8. For instance, it activates a long range magnetic ordering crucial for spin-photonics 9 , spintronics 10 and carrier-induced magnetism 5. Moreover, the reports on doping manganese (Mn) ions are currently establishing the coexsistance of Mn 2+ /Mn 3+ states leading to various interactions and spin-allowed transitions 11. In particular to Mn doped bulk cadmium selenide ((Cd,Mn)Se), antiferromagnetism is stereotype 1,12,13 due to the short range d-d interactions. However, the calculations predict hole-induced long range ferromagnetism (FM) from nano-cluster state or co-doping 14,15. Besides this, M. Sawicki et al. 16 , G. L. Gutsev et al. 14,17,18 and J. Yang 19 expressed intriguing magnetic states and related spin-active optical properties depending upon the concentration and ionic coordinations of the dopant. Similarly, the optical studies of a very low Mn doped CdSe/ZnSe core-shell quantum dots 20,21 predicts insignificant role of an individual Mn 2+ on the properties of host lattice. Nevertheless, studies on different quantum structures report on quenchning and shifting 22 of optical properties with the Mn 2+ state. Despite of the low solubility, several groups have initiated the Mn doping in various structure and composition 23-25 regardless of the ordinary properties. However, the concerns over doping stabilization in multilayered nanostuctures and its correlated properties orginating from intra-layer and inter-layer connected electronic states are yet to be explored. In this work, we report on (i) the successful doping of Mn into the cadmium selenide (CdSe) multilayered nanosheets (LNSs) lattice using a solvothermal route, (ii) strain induced stabilization and co-exitance of Mn 2+ / Mn 3+ states leading to multi-phase magnetic ordering with sharp ferromagnetic ordering at temperature ~48 K,</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/38537327" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="e21f4fc97c67137570b6188832569ca3" rel="nofollow" data-download="{"attachment_id":58607685,"asset_id":38537327,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/58607685/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="34170291" href="https://iacs.academia.edu/DrOindrilaHalder">Oindrila Halder</a><script data-card-contents-for-user="34170291" type="text/json">{"id":34170291,"first_name":"Oindrila","last_name":"Halder","domain_name":"iacs","page_name":"DrOindrilaHalder","display_name":"Oindrila Halder","profile_url":"https://iacs.academia.edu/DrOindrilaHalder?f_ri=21731","photo":"https://0.academia-photos.com/34170291/10023484/36344686/s65_dr._oindrila.halder.jpg"}</script></span></span></li><li class="js-paper-rank-work_38537327 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="38537327"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 38537327, container: ".js-paper-rank-work_38537327", }); 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$(".js-view-count[data-work-id=38537327]").text(description); $(".js-view-count-work_38537327").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_38537327").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="38537327"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">8</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="9339" rel="nofollow" href="https://www.academia.edu/Documents/in/Raman_Spectroscopy">Raman Spectroscopy</a>, <script data-card-contents-for-ri="9339" type="text/json">{"id":9339,"name":"Raman Spectroscopy","url":"https://www.academia.edu/Documents/in/Raman_Spectroscopy?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="21731" rel="nofollow" href="https://www.academia.edu/Documents/in/EPR_ESR">EPR, ESR</a>, <script data-card-contents-for-ri="21731" type="text/json">{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="35267" rel="nofollow" href="https://www.academia.edu/Documents/in/Photoluminescence">Photoluminescence</a>, <script data-card-contents-for-ri="35267" type="text/json">{"id":35267,"name":"Photoluminescence","url":"https://www.academia.edu/Documents/in/Photoluminescence?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="131787" rel="nofollow" href="https://www.academia.edu/Documents/in/XRD_Crystallography">XRD Crystallography</a><script data-card-contents-for-ri="131787" type="text/json">{"id":131787,"name":"XRD Crystallography","url":"https://www.academia.edu/Documents/in/XRD_Crystallography?f_ri=21731","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=38537327]'), work: {"id":38537327,"title":"Light emitting spin Active electronic states in Ultra-thin Mn Doped Cdse Layered Nanosheets","created_at":"2019-03-12T07:50:20.554-07:00","url":"https://www.academia.edu/38537327/Light_emitting_spin_Active_electronic_states_in_Ultra_thin_Mn_Doped_Cdse_Layered_Nanosheets?f_ri=21731","dom_id":"work_38537327","summary":"the layered nanosheets exhibit a variety of physical and optical properties originating from amalgamation of intra-and inter-layer electronic interactions, which makes them promising materials for advanced devices with varsatile controlling channels. In particular, the dilute magnetic semiconductor multilayered nanosheets have promising optical, electrical and magnetic properties that have been less explored so far. Here, the spin permissible optical properties from solvothermally grown Mn doped CdSe (thickness ~2.26 nm) multilayered nanosheets are reported on. The presence of multi-phase magnetic orderings with a sharp ferromagnetic transition at temperature ~48 K pertinent to the stabilization and coexistence of Mn 2+ and Mn 3+ based local phases have been observed from the (Cd,Mn)Se layered nanosheets corroborating to the x-ray absorption near edge structure, electron paramagnetic resonance, Raman scattering and magnetic measurements. the optical absorption and photoluminescence (PL) studies at room temperature affirm wide array of optical properties in the visible regime corresponding to the band edge and intriguing dopant-phase mediated spin approved transitions. The circularly polarized magneto-PL and life time analysis exhibits the spin-polarized fast radiative transitions confirming the presence of spin-active electronic states. The two-dimensional (2D) semiconductors 1 and doping effect in its layered structures are an active domain of research to offer advanced optical 2 , conductive 3 and magnetic properties 4,5 as a prospect of new generation device applications. Simultaneously, no effective methods of enhancing the sensitivity of these materials with reference to the external field has been established so far. Skillful doping of transition metal ions in nanostructures alter their spin degrees of freedom with promising giant Zeeman splitting 3,6 , magneto-optical 7 and fast spin-lattice dynamics 8. For instance, it activates a long range magnetic ordering crucial for spin-photonics 9 , spintronics 10 and carrier-induced magnetism 5. Moreover, the reports on doping manganese (Mn) ions are currently establishing the coexsistance of Mn 2+ /Mn 3+ states leading to various interactions and spin-allowed transitions 11. In particular to Mn doped bulk cadmium selenide ((Cd,Mn)Se), antiferromagnetism is stereotype 1,12,13 due to the short range d-d interactions. However, the calculations predict hole-induced long range ferromagnetism (FM) from nano-cluster state or co-doping 14,15. Besides this, M. Sawicki et al. 16 , G. L. Gutsev et al. 14,17,18 and J. Yang 19 expressed intriguing magnetic states and related spin-active optical properties depending upon the concentration and ionic coordinations of the dopant. Similarly, the optical studies of a very low Mn doped CdSe/ZnSe core-shell quantum dots 20,21 predicts insignificant role of an individual Mn 2+ on the properties of host lattice. Nevertheless, studies on different quantum structures report on quenchning and shifting 22 of optical properties with the Mn 2+ state. Despite of the low solubility, several groups have initiated the Mn doping in various structure and composition 23-25 regardless of the ordinary properties. However, the concerns over doping stabilization in multilayered nanostuctures and its correlated properties orginating from intra-layer and inter-layer connected electronic states are yet to be explored. In this work, we report on (i) the successful doping of Mn into the cadmium selenide (CdSe) multilayered nanosheets (LNSs) lattice using a solvothermal route, (ii) strain induced stabilization and co-exitance of Mn 2+ / Mn 3+ states leading to multi-phase magnetic ordering with sharp ferromagnetic ordering at temperature ~48 K,","downloadable_attachments":[{"id":58607685,"asset_id":38537327,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":34170291,"first_name":"Oindrila","last_name":"Halder","domain_name":"iacs","page_name":"DrOindrilaHalder","display_name":"Oindrila Halder","profile_url":"https://iacs.academia.edu/DrOindrilaHalder?f_ri=21731","photo":"https://0.academia-photos.com/34170291/10023484/36344686/s65_dr._oindrila.halder.jpg"}],"research_interests":[{"id":9339,"name":"Raman Spectroscopy","url":"https://www.academia.edu/Documents/in/Raman_Spectroscopy?f_ri=21731","nofollow":true},{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true},{"id":35267,"name":"Photoluminescence","url":"https://www.academia.edu/Documents/in/Photoluminescence?f_ri=21731","nofollow":true},{"id":131787,"name":"XRD Crystallography","url":"https://www.academia.edu/Documents/in/XRD_Crystallography?f_ri=21731","nofollow":true},{"id":309640,"name":"XANES","url":"https://www.academia.edu/Documents/in/XANES?f_ri=21731"},{"id":725060,"name":"2 D Semiconductor Nanosheets","url":"https://www.academia.edu/Documents/in/2_D_Semiconductor_Nanosheets?f_ri=21731"},{"id":743724,"name":"2d Materials","url":"https://www.academia.edu/Documents/in/2d_Materials?f_ri=21731"},{"id":1161532,"name":"Time-resolved Spectroscopy","url":"https://www.academia.edu/Documents/in/Time-resolved_Spectroscopy?f_ri=21731"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_74346044" data-work_id="74346044" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/74346044/The_Influence_of_Metal_Doped_Graphitic_Carbon_Nitride_on_Photocatalytic_Conversion_of_Acetic_Acid_to_Carbon_Dioxide">The Influence of Metal-Doped Graphitic Carbon Nitride on Photocatalytic Conversion of Acetic Acid to Carbon Dioxide</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Metal-doped graphitic carbon nitride (MCN) materials have shown great promise as effective photocatalysts for the conversion of acetic acid to carbon dioxide under UV-visible irradiation and are superior to pristine carbon nitride (g-C 3... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_74346044" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Metal-doped graphitic carbon nitride (MCN) materials have shown great promise as effective photocatalysts for the conversion of acetic acid to carbon dioxide under UV-visible irradiation and are superior to pristine carbon nitride (g-C 3 N 4 , CN). In this study, the effects of metal dopants on the physicochemical properties of metal-doped CN samples (Fe-, Cu-, Zn-, FeCu-, FeZn-, and CuZn-doped CN) and their catalytic activity in the photooxidation of acetic acid were investigated and discussed for their correlation, especially on their surface and bulk structures. The materials in the order of highest to lowest photocatalytic activity are FeZn_CN, FeCu_CN, Fe_CN, and Cu_CN (rates of CO 2 evolution higher than for CN), followed by Zn_CN, CuZn_CN, and CN (rates of CO 2 evolution lower than CN). Although Fe doping resulted in the extension of the light absorption range, incorporation of metals did not significantly alter the crystalline phase, morphology, and specific surface area of the CN materials. However, the extension of light absorption into the visible region on Fe doping did not provide a suitable explanation for the increase in photocatalytic efficiency. To further understand this issue, the materials were analyzed using two complementary techniques, reversed double-beam photoacoustic spectroscopy (RDB-PAS) and electron spin resonance spectroscopy (ESR). The FeZn_CN, with the highest electron trap density between 2.95 and 3.00 eV, afforded the highest rate of CO 2 evolution from acetic acid photodecomposition. All Fe-incorporated CN materials and Cu-CN reported herein can be categorized as high activity catalysts according to the rates of CO 2 evolution obtained, higher than 0.15 μmol/min −1 , or >1.5 times higher than that of pristine CN. Results from this research are suggestive of a correlation between the rate of CO 2 evolution via photocatalytic oxidation of acetic acid with the threshold number of free unpaired electrons in CN-based materials and high electron trap density (between 2.95 and 3.00 eV).</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/74346044" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="507e9577b49e58c7b118e560fe407d51" rel="nofollow" data-download="{"attachment_id":82531960,"asset_id":74346044,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/82531960/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="121231454" href="https://mahidol.academia.edu/SiwapornMeejoosmith">Siwaporn Meejoo smith</a><script data-card-contents-for-user="121231454" type="text/json">{"id":121231454,"first_name":"Siwaporn","last_name":"Meejoo smith","domain_name":"mahidol","page_name":"SiwapornMeejoosmith","display_name":"Siwaporn Meejoo smith","profile_url":"https://mahidol.academia.edu/SiwapornMeejoosmith?f_ri=21731","photo":"https://0.academia-photos.com/121231454/70164983/150208241/s65_siwaporn.meejoo_smith.jpg"}</script></span></span></li><li class="js-paper-rank-work_74346044 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="74346044"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 74346044, container: ".js-paper-rank-work_74346044", }); 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$(".js-view-count[data-work-id=74346044]").text(description); $(".js-view-count-work_74346044").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_74346044").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="74346044"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">3</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="21731" rel="nofollow" href="https://www.academia.edu/Documents/in/EPR_ESR">EPR, ESR</a>, <script data-card-contents-for-ri="21731" type="text/json">{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="58352" rel="nofollow" href="https://www.academia.edu/Documents/in/Photocatalysis">Photocatalysis</a>, <script data-card-contents-for-ri="58352" type="text/json">{"id":58352,"name":"Photocatalysis","url":"https://www.academia.edu/Documents/in/Photocatalysis?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="124942" rel="nofollow" href="https://www.academia.edu/Documents/in/Carbon_Nitride">Carbon Nitride</a><script data-card-contents-for-ri="124942" type="text/json">{"id":124942,"name":"Carbon Nitride","url":"https://www.academia.edu/Documents/in/Carbon_Nitride?f_ri=21731","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=74346044]'), work: {"id":74346044,"title":"The Influence of Metal-Doped Graphitic Carbon Nitride on Photocatalytic Conversion of Acetic Acid to Carbon Dioxide","created_at":"2022-03-22T21:40:15.801-07:00","url":"https://www.academia.edu/74346044/The_Influence_of_Metal_Doped_Graphitic_Carbon_Nitride_on_Photocatalytic_Conversion_of_Acetic_Acid_to_Carbon_Dioxide?f_ri=21731","dom_id":"work_74346044","summary":"Metal-doped graphitic carbon nitride (MCN) materials have shown great promise as effective photocatalysts for the conversion of acetic acid to carbon dioxide under UV-visible irradiation and are superior to pristine carbon nitride (g-C 3 N 4 , CN). In this study, the effects of metal dopants on the physicochemical properties of metal-doped CN samples (Fe-, Cu-, Zn-, FeCu-, FeZn-, and CuZn-doped CN) and their catalytic activity in the photooxidation of acetic acid were investigated and discussed for their correlation, especially on their surface and bulk structures. The materials in the order of highest to lowest photocatalytic activity are FeZn_CN, FeCu_CN, Fe_CN, and Cu_CN (rates of CO 2 evolution higher than for CN), followed by Zn_CN, CuZn_CN, and CN (rates of CO 2 evolution lower than CN). Although Fe doping resulted in the extension of the light absorption range, incorporation of metals did not significantly alter the crystalline phase, morphology, and specific surface area of the CN materials. However, the extension of light absorption into the visible region on Fe doping did not provide a suitable explanation for the increase in photocatalytic efficiency. To further understand this issue, the materials were analyzed using two complementary techniques, reversed double-beam photoacoustic spectroscopy (RDB-PAS) and electron spin resonance spectroscopy (ESR). The FeZn_CN, with the highest electron trap density between 2.95 and 3.00 eV, afforded the highest rate of CO 2 evolution from acetic acid photodecomposition. All Fe-incorporated CN materials and Cu-CN reported herein can be categorized as high activity catalysts according to the rates of CO 2 evolution obtained, higher than 0.15 μmol/min −1 , or \u003e1.5 times higher than that of pristine CN. Results from this research are suggestive of a correlation between the rate of CO 2 evolution via photocatalytic oxidation of acetic acid with the threshold number of free unpaired electrons in CN-based materials and high electron trap density (between 2.95 and 3.00 eV).","downloadable_attachments":[{"id":82531960,"asset_id":74346044,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":121231454,"first_name":"Siwaporn","last_name":"Meejoo smith","domain_name":"mahidol","page_name":"SiwapornMeejoosmith","display_name":"Siwaporn Meejoo smith","profile_url":"https://mahidol.academia.edu/SiwapornMeejoosmith?f_ri=21731","photo":"https://0.academia-photos.com/121231454/70164983/150208241/s65_siwaporn.meejoo_smith.jpg"}],"research_interests":[{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true},{"id":58352,"name":"Photocatalysis","url":"https://www.academia.edu/Documents/in/Photocatalysis?f_ri=21731","nofollow":true},{"id":124942,"name":"Carbon Nitride","url":"https://www.academia.edu/Documents/in/Carbon_Nitride?f_ri=21731","nofollow":true}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_35089397" data-work_id="35089397" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/35089397/On_the_distribution_of_iron_in_minerals_from_jaspers_from_the_Eastern_Rhodopes_according_to_spectroscopic_data">On the distribution of iron in minerals from jaspers from the Eastern Rhodopes according to spectroscopic data</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">The Eastern Rhodopes are the main area of distribution of various in color and genesis jaspers in Bulgaria. With the help of Mössbauer spectroscopy and Electron Paramagnetic Resonance (EPR) spectroscopy, the iron status and distribution... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_35089397" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">The Eastern Rhodopes are the main area of distribution of various in color and genesis jaspers in Bulgaria. With the help of Mössbauer spectroscopy and Electron Paramagnetic Resonance (EPR) spectroscopy, the iron status and distribution of different valence states of iron were studied in the three most important impurity phases of jasper – hematite, goethite and celadonite, which are associated with red, yellow to yellowish-brown and green coloration, respectively. In the Mössbauer spectrum of red jasper, Fe 3+ sextets characteristic of hematite and goethite are detected, in the spectrum of yellow jasper – Fe 3+ sextets characteristic only of goethite, and in the green jasper spectrum – dominant Fe 3+ and Fe 2+ doublets associated with celadonite. The EPR spectra of jasper samples reveal information about the concentration of iron-bearing phases and iron ions in tetrahedral coordination.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/35089397" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="8bdd288fac75cb73a2a9735f0e020f8c" rel="nofollow" data-download="{"attachment_id":54950484,"asset_id":35089397,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/54950484/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="987096" href="https://independent.academia.edu/RuslanIKostov">Ruslan I. Kostov</a><script data-card-contents-for-user="987096" type="text/json">{"id":987096,"first_name":"Ruslan","last_name":"I. Kostov","domain_name":"independent","page_name":"RuslanIKostov","display_name":"Ruslan I. Kostov","profile_url":"https://independent.academia.edu/RuslanIKostov?f_ri=21731","photo":"https://0.academia-photos.com/987096/355074/19830041/s65_ruslan.i._kostov.jpg"}</script></span></span></li><li class="js-paper-rank-work_35089397 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="35089397"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 35089397, container: ".js-paper-rank-work_35089397", }); });</script></li><li class="js-percentile-work_35089397 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 35089397; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_35089397"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_35089397 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="35089397"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 35089397; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=35089397]").text(description); $(".js-view-count-work_35089397").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_35089397").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="35089397"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">9</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="414" rel="nofollow" href="https://www.academia.edu/Documents/in/Mineralogy">Mineralogy</a>, <script data-card-contents-for-ri="414" type="text/json">{"id":414,"name":"Mineralogy","url":"https://www.academia.edu/Documents/in/Mineralogy?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="8935" rel="nofollow" href="https://www.academia.edu/Documents/in/M%C3%B6ssbauer_Spectroscopy">Mössbauer Spectroscopy</a>, <script data-card-contents-for-ri="8935" type="text/json">{"id":8935,"name":"Mössbauer Spectroscopy","url":"https://www.academia.edu/Documents/in/M%C3%B6ssbauer_Spectroscopy?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="21731" rel="nofollow" href="https://www.academia.edu/Documents/in/EPR_ESR">EPR, ESR</a>, <script data-card-contents-for-ri="21731" type="text/json">{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="37780" rel="nofollow" href="https://www.academia.edu/Documents/in/EPR_Spectroscopy">EPR Spectroscopy</a><script data-card-contents-for-ri="37780" type="text/json">{"id":37780,"name":"EPR Spectroscopy","url":"https://www.academia.edu/Documents/in/EPR_Spectroscopy?f_ri=21731","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=35089397]'), work: {"id":35089397,"title":"On the distribution of iron in minerals from jaspers from the Eastern Rhodopes according to spectroscopic data","created_at":"2017-11-08T07:38:38.364-08:00","url":"https://www.academia.edu/35089397/On_the_distribution_of_iron_in_minerals_from_jaspers_from_the_Eastern_Rhodopes_according_to_spectroscopic_data?f_ri=21731","dom_id":"work_35089397","summary":"The Eastern Rhodopes are the main area of distribution of various in color and genesis jaspers in Bulgaria. With the help of Mössbauer spectroscopy and Electron Paramagnetic Resonance (EPR) spectroscopy, the iron status and distribution of different valence states of iron were studied in the three most important impurity phases of jasper – hematite, goethite and celadonite, which are associated with red, yellow to yellowish-brown and green coloration, respectively. In the Mössbauer spectrum of red jasper, Fe 3+ sextets characteristic of hematite and goethite are detected, in the spectrum of yellow jasper – Fe 3+ sextets characteristic only of goethite, and in the green jasper spectrum – dominant Fe 3+ and Fe 2+ doublets associated with celadonite. The EPR spectra of jasper samples reveal information about the concentration of iron-bearing phases and iron ions in tetrahedral coordination.","downloadable_attachments":[{"id":54950484,"asset_id":35089397,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":987096,"first_name":"Ruslan","last_name":"I. Kostov","domain_name":"independent","page_name":"RuslanIKostov","display_name":"Ruslan I. Kostov","profile_url":"https://independent.academia.edu/RuslanIKostov?f_ri=21731","photo":"https://0.academia-photos.com/987096/355074/19830041/s65_ruslan.i._kostov.jpg"}],"research_interests":[{"id":414,"name":"Mineralogy","url":"https://www.academia.edu/Documents/in/Mineralogy?f_ri=21731","nofollow":true},{"id":8935,"name":"Mössbauer Spectroscopy","url":"https://www.academia.edu/Documents/in/M%C3%B6ssbauer_Spectroscopy?f_ri=21731","nofollow":true},{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true},{"id":37780,"name":"EPR Spectroscopy","url":"https://www.academia.edu/Documents/in/EPR_Spectroscopy?f_ri=21731","nofollow":true},{"id":74607,"name":"Quartz","url":"https://www.academia.edu/Documents/in/Quartz?f_ri=21731"},{"id":235019,"name":"Chalcedony","url":"https://www.academia.edu/Documents/in/Chalcedony?f_ri=21731"},{"id":235173,"name":"Goethite","url":"https://www.academia.edu/Documents/in/Goethite?f_ri=21731"},{"id":1033751,"name":"Celadonite","url":"https://www.academia.edu/Documents/in/Celadonite?f_ri=21731"},{"id":1157841,"name":"Jasper","url":"https://www.academia.edu/Documents/in/Jasper?f_ri=21731"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_20110699" data-work_id="20110699" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/20110699/EPR_b_Bubble_Bubble_Toil_and_Trouble">EPR-b: Bubble, Bubble, Toil and Trouble</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">This paper is excerpted from a prepublication copy of my upcoming history book Phallacies in Fysics: Volume 2 Modern Physics: A fresh look and reappraisal of the Second Scientific Revolution Einstein and his colleagues developed... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_20110699" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">This paper is excerpted from a prepublication copy of my upcoming history book <br /><br />Phallacies in Fysics: Volume 2 <br />Modern Physics: A fresh look and reappraisal of the Second Scientific Revolution <br /><br />Einstein and his colleagues developed valid arguments against the quantum theory in the EPR paper of 1935 that have never been successfully or completely answered by science or philosophers. Through the gross misunderstanding of those arguments, experimental tests of spin and polarity entanglement have been used in attempts to convince scientists that EPR was wrong, but it is not. These experiments do not answer or even address the central issue raised by EPR and no valid test of the EPR paradox has ever been developed. EPR was about the simple mechanics of motion, not about electromagnetism or purely quantum effects. But Einstein and his colleagues were also wrong. They argued against the discrete nature of reality and the particle worldview, neither of which really address the real weaknesses of the quantum theory and the Copenhagen Interpretation. If they had taken a different approach and sought compatibility between relativity and the quantum they would have been able to demonstrate that the quantum theory does not depend on either a discrete view of nature or the particle worldview.<br /><br />Both relativity and the quantum favor neither discreteness nor extended particles alone, so debates whether nature is deterministic or indeterministic are both misleading and irrelevant to the advance of physics. The whole issue can be settled by finding the physical conditions for compatibility and the material consequences for fulfilling those conditions. In this respect, the Heisenberg uncertainty principle can be interpreted in a manner that is not at odds with relativity theory and Planck’s constant can be defined as the minimum measurable limit for which the physical reality of space and time can be taken as separate thus rendering Planck’s constant a space-time coupling factor. By taking this interpretation of the quantum into account the unification of physics within a single paradigm cannot be not far behind while the emphasis of the history of physics on the revolutionary nature of the quantum and the overthrow of Newtonian physics becomes less of a factor than previously thought. In fact, Newtonian physics was so successful by the beginning of the twentieth century that it fostered the new revolution with Newtonian relativity of space and time falling to Einstein’s relativity of space-time at the extremes of speed and gravitational mass and Newtonian absolute space and time falling to quantum space-time at the lower extreme of physical size where the geometry of points becomes physically relevant.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/20110699" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="509902f01033395a42a9b0f92957df23" rel="nofollow" data-download="{"attachment_id":41013811,"asset_id":20110699,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/41013811/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="13393868" href="https://webplus.academia.edu/JamesJimBeichler">James (Jim) E Beichler</a><script data-card-contents-for-user="13393868" type="text/json">{"id":13393868,"first_name":"James (Jim)","last_name":"Beichler","domain_name":"webplus","page_name":"JamesJimBeichler","display_name":"James (Jim) E Beichler","profile_url":"https://webplus.academia.edu/JamesJimBeichler?f_ri=21731","photo":"https://0.academia-photos.com/13393868/3842772/4496298/s65_jim.beichler.jpg"}</script></span></span></li><li class="js-paper-rank-work_20110699 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="20110699"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 20110699, container: ".js-paper-rank-work_20110699", }); });</script></li><li class="js-percentile-work_20110699 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 20110699; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_20110699"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_20110699 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="20110699"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 20110699; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=20110699]").text(description); $(".js-view-count-work_20110699").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_20110699").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="20110699"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">32</a>  </div><span class="InlineList-item-text u-textTruncate u-pl10x"><a class="InlineList-item-text" data-has-card-for-ri="318" rel="nofollow" href="https://www.academia.edu/Documents/in/Mathematical_Physics">Mathematical Physics</a>, <script data-card-contents-for-ri="318" type="text/json">{"id":318,"name":"Mathematical Physics","url":"https://www.academia.edu/Documents/in/Mathematical_Physics?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="498" rel="nofollow" href="https://www.academia.edu/Documents/in/Physics">Physics</a>, <script data-card-contents-for-ri="498" type="text/json">{"id":498,"name":"Physics","url":"https://www.academia.edu/Documents/in/Physics?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="503" rel="nofollow" href="https://www.academia.edu/Documents/in/Theoretical_Physics">Theoretical Physics</a>, <script data-card-contents-for-ri="503" type="text/json">{"id":503,"name":"Theoretical Physics","url":"https://www.academia.edu/Documents/in/Theoretical_Physics?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="504" rel="nofollow" href="https://www.academia.edu/Documents/in/Computational_Physics">Computational Physics</a><script data-card-contents-for-ri="504" type="text/json">{"id":504,"name":"Computational Physics","url":"https://www.academia.edu/Documents/in/Computational_Physics?f_ri=21731","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=20110699]'), work: {"id":20110699,"title":"EPR-b: Bubble, Bubble, Toil and Trouble","created_at":"2016-01-08T15:43:34.278-08:00","url":"https://www.academia.edu/20110699/EPR_b_Bubble_Bubble_Toil_and_Trouble?f_ri=21731","dom_id":"work_20110699","summary":"\nThis paper is excerpted from a prepublication copy of my upcoming history book \n\nPhallacies in Fysics: Volume 2 \nModern Physics: A fresh look and reappraisal of the Second Scientific Revolution \n\nEinstein and his colleagues developed valid arguments against the quantum theory in the EPR paper of 1935 that have never been successfully or completely answered by science or philosophers. Through the gross misunderstanding of those arguments, experimental tests of spin and polarity entanglement have been used in attempts to convince scientists that EPR was wrong, but it is not. These experiments do not answer or even address the central issue raised by EPR and no valid test of the EPR paradox has ever been developed. EPR was about the simple mechanics of motion, not about electromagnetism or purely quantum effects. But Einstein and his colleagues were also wrong. They argued against the discrete nature of reality and the particle worldview, neither of which really address the real weaknesses of the quantum theory and the Copenhagen Interpretation. If they had taken a different approach and sought compatibility between relativity and the quantum they would have been able to demonstrate that the quantum theory does not depend on either a discrete view of nature or the particle worldview.\n\nBoth relativity and the quantum favor neither discreteness nor extended particles alone, so debates whether nature is deterministic or indeterministic are both misleading and irrelevant to the advance of physics. The whole issue can be settled by finding the physical conditions for compatibility and the material consequences for fulfilling those conditions. In this respect, the Heisenberg uncertainty principle can be interpreted in a manner that is not at odds with relativity theory and Planck’s constant can be defined as the minimum measurable limit for which the physical reality of space and time can be taken as separate thus rendering Planck’s constant a space-time coupling factor. By taking this interpretation of the quantum into account the unification of physics within a single paradigm cannot be not far behind while the emphasis of the history of physics on the revolutionary nature of the quantum and the overthrow of Newtonian physics becomes less of a factor than previously thought. In fact, Newtonian physics was so successful by the beginning of the twentieth century that it fostered the new revolution with Newtonian relativity of space and time falling to Einstein’s relativity of space-time at the extremes of speed and gravitational mass and Newtonian absolute space and time falling to quantum space-time at the lower extreme of physical size where the geometry of points becomes physically relevant. \n","downloadable_attachments":[{"id":41013811,"asset_id":20110699,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":13393868,"first_name":"James (Jim)","last_name":"Beichler","domain_name":"webplus","page_name":"JamesJimBeichler","display_name":"James (Jim) E Beichler","profile_url":"https://webplus.academia.edu/JamesJimBeichler?f_ri=21731","photo":"https://0.academia-photos.com/13393868/3842772/4496298/s65_jim.beichler.jpg"}],"research_interests":[{"id":318,"name":"Mathematical Physics","url":"https://www.academia.edu/Documents/in/Mathematical_Physics?f_ri=21731","nofollow":true},{"id":498,"name":"Physics","url":"https://www.academia.edu/Documents/in/Physics?f_ri=21731","nofollow":true},{"id":503,"name":"Theoretical Physics","url":"https://www.academia.edu/Documents/in/Theoretical_Physics?f_ri=21731","nofollow":true},{"id":504,"name":"Computational Physics","url":"https://www.academia.edu/Documents/in/Computational_Physics?f_ri=21731","nofollow":true},{"id":518,"name":"Quantum Physics","url":"https://www.academia.edu/Documents/in/Quantum_Physics?f_ri=21731"},{"id":822,"name":"Philosophy of Physics","url":"https://www.academia.edu/Documents/in/Philosophy_of_Physics?f_ri=21731"},{"id":888,"name":"Cosmology (Physics)","url":"https://www.academia.edu/Documents/in/Cosmology_Physics_?f_ri=21731"},{"id":2035,"name":"Relativity","url":"https://www.academia.edu/Documents/in/Relativity?f_ri=21731"},{"id":2578,"name":"Particle Physics","url":"https://www.academia.edu/Documents/in/Particle_Physics?f_ri=21731"},{"id":3504,"name":"General Relativity","url":"https://www.academia.edu/Documents/in/General_Relativity?f_ri=21731"},{"id":5702,"name":"History of Philosophy of physics","url":"https://www.academia.edu/Documents/in/History_of_Philosophy_of_physics?f_ri=21731"},{"id":6811,"name":"Quantum Theory","url":"https://www.academia.edu/Documents/in/Quantum_Theory?f_ri=21731"},{"id":8259,"name":"History and Philosophy of Physics","url":"https://www.academia.edu/Documents/in/History_and_Philosophy_of_Physics?f_ri=21731"},{"id":9138,"name":"Applied Physics","url":"https://www.academia.edu/Documents/in/Applied_Physics?f_ri=21731"},{"id":10092,"name":"Quantum Field Theory","url":"https://www.academia.edu/Documents/in/Quantum_Field_Theory?f_ri=21731"},{"id":12553,"name":"History of Physics","url":"https://www.academia.edu/Documents/in/History_of_Physics?f_ri=21731"},{"id":17871,"name":"Physics Education","url":"https://www.academia.edu/Documents/in/Physics_Education?f_ri=21731"},{"id":19656,"name":"Special Relativity","url":"https://www.academia.edu/Documents/in/Special_Relativity?f_ri=21731"},{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731"},{"id":29702,"name":"Theoretical Fundamental Physics","url":"https://www.academia.edu/Documents/in/Theoretical_Fundamental_Physics?f_ri=21731"},{"id":31052,"name":"Philosophy of physics \u0026 cosmology","url":"https://www.academia.edu/Documents/in/Philosophy_of_physics_and_cosmology?f_ri=21731"},{"id":34622,"name":"Modern physics","url":"https://www.academia.edu/Documents/in/Modern_physics?f_ri=21731"},{"id":40051,"name":"Special Theory Of Relativity","url":"https://www.academia.edu/Documents/in/Special_Theory_Of_Relativity?f_ri=21731"},{"id":65989,"name":"Grand Unification","url":"https://www.academia.edu/Documents/in/Grand_Unification?f_ri=21731"},{"id":66885,"name":"General Theory of Relativity","url":"https://www.academia.edu/Documents/in/General_Theory_of_Relativity?f_ri=21731"},{"id":93166,"name":"Fundamental Physics","url":"https://www.academia.edu/Documents/in/Fundamental_Physics?f_ri=21731"},{"id":93895,"name":"Theory of Relativity","url":"https://www.academia.edu/Documents/in/Theory_of_Relativity?f_ri=21731"},{"id":121491,"name":"Philosophy and Physics of Time","url":"https://www.academia.edu/Documents/in/Philosophy_and_Physics_of_Time?f_ri=21731"},{"id":378243,"name":"History and Philosophy of Modern Physics","url":"https://www.academia.edu/Documents/in/History_and_Philosophy_of_Modern_Physics?f_ri=21731"},{"id":436473,"name":"Philosophy of Physics, Quantum Physics, Foundations of Quantum Mechanics","url":"https://www.academia.edu/Documents/in/Philosophy_of_Physics_Quantum_Physics_Foundations_of_Quantum_Mechanics?f_ri=21731"},{"id":643611,"name":"Philosophy of science/physics","url":"https://www.academia.edu/Documents/in/Philosophy_of_science_physics?f_ri=21731"},{"id":1130348,"name":"Modern Physics Quantum Physics","url":"https://www.academia.edu/Documents/in/Modern_Physics_Quantum_Physics?f_ri=21731"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_19579243" data-work_id="19579243" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/19579243/Cationic_and_magnetic_order_in_LiNiO2_and_NiO_type_Li_Ni_mixed_oxides">Cationic and magnetic order in LiNiO2- and NiO-type Li-Ni mixed oxides</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">X-ray diffraction, magnetic susceptibility, and electron paramagnetic resonance ~EPR! measurements have been carried out on mixed nickel-lithium oxides as a function of the lithium content. The experimental results allow us to analyze the... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_19579243" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">X-ray diffraction, magnetic susceptibility, and electron paramagnetic resonance ~EPR! measurements have<br />been carried out on mixed nickel-lithium oxides as a function of the lithium content. The experimental results<br />allow us to analyze the cationic order and the magnetic interactions. All the data are consistent with a model<br />that admits coexistence of different structural phases in a wide composition range, previously not accounted for<br />in the discussion of the physical properties of these mixed oxides.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/19579243" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="79e6da7a65827064a9104062a1912651" rel="nofollow" data-download="{"attachment_id":40709188,"asset_id":19579243,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/40709188/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="33172940" href="https://unipv.academia.edu/MarcellaBini">Marcella Bini</a><script data-card-contents-for-user="33172940" type="text/json">{"id":33172940,"first_name":"Marcella","last_name":"Bini","domain_name":"unipv","page_name":"MarcellaBini","display_name":"Marcella Bini","profile_url":"https://unipv.academia.edu/MarcellaBini?f_ri=21731","photo":"https://0.academia-photos.com/33172940/10494849/11710129/s65_marcella.bini.jpg"}</script></span></span></li><li class="js-paper-rank-work_19579243 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="19579243"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 19579243, container: ".js-paper-rank-work_19579243", }); });</script></li><li class="js-percentile-work_19579243 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 19579243; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_19579243"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_19579243 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="19579243"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 19579243; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=19579243]").text(description); $(".js-view-count-work_19579243").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_19579243").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="19579243"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">3</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="21731" rel="nofollow" href="https://www.academia.edu/Documents/in/EPR_ESR">EPR, ESR</a>, <script data-card-contents-for-ri="21731" type="text/json">{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="198733" rel="nofollow" href="https://www.academia.edu/Documents/in/Powder_X-Ray_Diffraction">Powder X-Ray Diffraction</a>, <script data-card-contents-for-ri="198733" type="text/json">{"id":198733,"name":"Powder X-Ray Diffraction","url":"https://www.academia.edu/Documents/in/Powder_X-Ray_Diffraction?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="2241413" rel="nofollow" href="https://www.academia.edu/Documents/in/Cationic_order">Cationic order</a><script data-card-contents-for-ri="2241413" type="text/json">{"id":2241413,"name":"Cationic order","url":"https://www.academia.edu/Documents/in/Cationic_order?f_ri=21731","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=19579243]'), work: {"id":19579243,"title":"Cationic and magnetic order in LiNiO2- and NiO-type Li-Ni mixed oxides","created_at":"2015-12-09T07:47:56.784-08:00","url":"https://www.academia.edu/19579243/Cationic_and_magnetic_order_in_LiNiO2_and_NiO_type_Li_Ni_mixed_oxides?f_ri=21731","dom_id":"work_19579243","summary":"X-ray diffraction, magnetic susceptibility, and electron paramagnetic resonance ~EPR! measurements have\nbeen carried out on mixed nickel-lithium oxides as a function of the lithium content. The experimental results\nallow us to analyze the cationic order and the magnetic interactions. All the data are consistent with a model\nthat admits coexistence of different structural phases in a wide composition range, previously not accounted for\nin the discussion of the physical properties of these mixed oxides.","downloadable_attachments":[{"id":40709188,"asset_id":19579243,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":33172940,"first_name":"Marcella","last_name":"Bini","domain_name":"unipv","page_name":"MarcellaBini","display_name":"Marcella Bini","profile_url":"https://unipv.academia.edu/MarcellaBini?f_ri=21731","photo":"https://0.academia-photos.com/33172940/10494849/11710129/s65_marcella.bini.jpg"}],"research_interests":[{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true},{"id":198733,"name":"Powder X-Ray Diffraction","url":"https://www.academia.edu/Documents/in/Powder_X-Ray_Diffraction?f_ri=21731","nofollow":true},{"id":2241413,"name":"Cationic order","url":"https://www.academia.edu/Documents/in/Cationic_order?f_ri=21731","nofollow":true}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_17464671" data-work_id="17464671" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/17464671/EPR_of_new_nickel_nitrogen_center_in_annealed_synthetic_diamond">EPR of new nickel–nitrogen center in annealed synthetic diamond</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">In addition to the NE1 and NE2 centers a new EPR center with S 1/2, which we have labeled the RM1 center, has been found in synthetic diamond grown from the Ni solvent and annealed at 2300 K. The RM1 spectrum appears as a pattern of... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_17464671" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">In addition to the NE1 and NE2 centers a new EPR center with S 1/2, which we have labeled the RM1 center, has been found in synthetic diamond grown from the Ni solvent and annealed at 2300 K. The RM1 spectrum appears as a pattern of nine lines with intensity distribution near 1:4:10:16:19:16:10:4:1 because of hyperfine interactions with four equivalent nitrogen nuclei. The RM1 center has C1h symmetry and the anisotropic g values g1= 2.1719, g2= 2.052, g3 = 2.042 and hyperfine values A1/h =31.8, A2/h= 26.4, A3/h=23.1 MHz. A possible model of the RM1 center is discussed as a Ni1 ion in the position midway between two adjacent vacancies with four equivalent nitrogen atoms and two carbon atoms in the nearest neighborhood.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/17464671" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="6c42e1af108c650ca2d86d66efe62b18" rel="nofollow" data-download="{"attachment_id":39523565,"asset_id":17464671,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/39523565/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="36907166" href="https://iggcas.academia.edu/RudolfMashkovtsev">Rudolf Mashkovtsev</a><script data-card-contents-for-user="36907166" type="text/json">{"id":36907166,"first_name":"Rudolf","last_name":"Mashkovtsev","domain_name":"iggcas","page_name":"RudolfMashkovtsev","display_name":"Rudolf Mashkovtsev","profile_url":"https://iggcas.academia.edu/RudolfMashkovtsev?f_ri=21731","photo":"https://0.academia-photos.com/36907166/10528490/11749446/s65_rudolf.mashkovtsev.jpg"}</script></span></span></li><li class="js-paper-rank-work_17464671 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="17464671"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 17464671, container: ".js-paper-rank-work_17464671", }); });</script></li><li class="js-percentile-work_17464671 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 17464671; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_17464671"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_17464671 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="17464671"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 17464671; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=17464671]").text(description); $(".js-view-count-work_17464671").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_17464671").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="17464671"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">5</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="21731" rel="nofollow" href="https://www.academia.edu/Documents/in/EPR_ESR">EPR, ESR</a>, <script data-card-contents-for-ri="21731" type="text/json">{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="37780" rel="nofollow" href="https://www.academia.edu/Documents/in/EPR_Spectroscopy">EPR Spectroscopy</a>, <script data-card-contents-for-ri="37780" type="text/json">{"id":37780,"name":"EPR Spectroscopy","url":"https://www.academia.edu/Documents/in/EPR_Spectroscopy?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="106363" rel="nofollow" href="https://www.academia.edu/Documents/in/Diamonds">Diamonds</a>, <script data-card-contents-for-ri="106363" type="text/json">{"id":106363,"name":"Diamonds","url":"https://www.academia.edu/Documents/in/Diamonds?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="250583" rel="nofollow" href="https://www.academia.edu/Documents/in/Diamond">Diamond</a><script data-card-contents-for-ri="250583" type="text/json">{"id":250583,"name":"Diamond","url":"https://www.academia.edu/Documents/in/Diamond?f_ri=21731","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=17464671]'), work: {"id":17464671,"title":"EPR of new nickel–nitrogen center in annealed synthetic diamond","created_at":"2015-10-29T06:00:10.879-07:00","url":"https://www.academia.edu/17464671/EPR_of_new_nickel_nitrogen_center_in_annealed_synthetic_diamond?f_ri=21731","dom_id":"work_17464671","summary":"In addition to the NE1 and NE2 centers a new EPR center with S 1/2, which we have labeled the RM1 center, has been found in synthetic diamond grown from the Ni solvent and annealed at 2300 K. The RM1 spectrum appears as a pattern of nine lines with intensity distribution near 1:4:10:16:19:16:10:4:1 because of hyperfine interactions with four equivalent nitrogen nuclei. The RM1 center has C1h symmetry and the anisotropic g values g1= 2.1719, g2= 2.052, g3 = 2.042 and hyperfine values A1/h =31.8, A2/h= 26.4, A3/h=23.1 MHz. A possible model of the RM1 center is discussed as a Ni1 ion in the position midway between two adjacent vacancies with four equivalent nitrogen atoms and two carbon atoms in the nearest neighborhood.","downloadable_attachments":[{"id":39523565,"asset_id":17464671,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":36907166,"first_name":"Rudolf","last_name":"Mashkovtsev","domain_name":"iggcas","page_name":"RudolfMashkovtsev","display_name":"Rudolf Mashkovtsev","profile_url":"https://iggcas.academia.edu/RudolfMashkovtsev?f_ri=21731","photo":"https://0.academia-photos.com/36907166/10528490/11749446/s65_rudolf.mashkovtsev.jpg"}],"research_interests":[{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true},{"id":37780,"name":"EPR Spectroscopy","url":"https://www.academia.edu/Documents/in/EPR_Spectroscopy?f_ri=21731","nofollow":true},{"id":106363,"name":"Diamonds","url":"https://www.academia.edu/Documents/in/Diamonds?f_ri=21731","nofollow":true},{"id":250583,"name":"Diamond","url":"https://www.academia.edu/Documents/in/Diamond?f_ri=21731","nofollow":true},{"id":523764,"name":"Electron Paramagnetic Resonance Spectroscopy","url":"https://www.academia.edu/Documents/in/Electron_Paramagnetic_Resonance_Spectroscopy?f_ri=21731"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_6551925" data-work_id="6551925" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/6551925/Comparative_electron_paramagnetic_resonance_investigation_of_reduced_graphene_oxide_and_carbon_nanotubes_with_different_chemical_functionalities_for_quantum_dot_attachment">Comparative electron paramagnetic resonance investigation of reduced graphene oxide and carbon nanotubes with different chemical functionalities for quantum dot attachment</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Electron paramagnetic resonance (EPR) spectroscopy has been applied to different chemically treated reduced graphene oxide (rGO) and multiwalled carbon nanotubes (CNTs). A narrow EPR signal is visible at g¼2.0029 in both GO and CNT-Oxide... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_6551925" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Electron paramagnetic resonance (EPR) spectroscopy has been applied to different chemically treated reduced graphene oxide (rGO) and multiwalled carbon nanotubes (CNTs). A narrow EPR signal is visible at g¼2.0029 in both GO and CNT-Oxide from carbon-related dangling bonds. EPR signals became broader and of lower intensity after oxygen-containing functionalities were reduced and partially transformed into thiol groups to obtain thiol-functionalized reduced GO (TrGO) and thiol-functionalized CNT (CNT-SH), respectively. Additionally, EPR investigation of CdSe quantum dot-TrGO hybrid material reveals complete quenching of the TrGO EPR signal due to direct chemical attachment and electronic coupling. Our work confirms that EPR is a suitable tool to detect spin density changes in different functionalized nanocarbon materials and can contribute to improved understanding of electronic coupling effects in nanocarbon- nanoparticle hybrid nano-composites promising for various electronic and optoelectronic applications.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/6551925" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="8400561e292f7a6e0791f5e2f5c476e1" rel="nofollow" data-download="{"attachment_id":33400331,"asset_id":6551925,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/33400331/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="673216" href="https://uni-freiburg.academia.edu/EmreErdem">Emre Erdem</a><script data-card-contents-for-user="673216" type="text/json">{"id":673216,"first_name":"Emre","last_name":"Erdem","domain_name":"uni-freiburg","page_name":"EmreErdem","display_name":"Emre Erdem","profile_url":"https://uni-freiburg.academia.edu/EmreErdem?f_ri=21731","photo":"https://0.academia-photos.com/673216/235097/16292589/s65_emre.erdem.jpg"}</script></span></span></li><li class="js-paper-rank-work_6551925 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="6551925"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 6551925, container: ".js-paper-rank-work_6551925", }); });</script></li><li class="js-percentile-work_6551925 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 6551925; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_6551925"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_6551925 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="6551925"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 6551925; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=6551925]").text(description); $(".js-view-count-work_6551925").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_6551925").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="6551925"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">6</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="10909" rel="nofollow" href="https://www.academia.edu/Documents/in/Carbon_Nanotubes">Carbon Nanotubes</a>, <script data-card-contents-for-ri="10909" type="text/json">{"id":10909,"name":"Carbon Nanotubes","url":"https://www.academia.edu/Documents/in/Carbon_Nanotubes?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="11541" rel="nofollow" href="https://www.academia.edu/Documents/in/Graphene">Graphene</a>, <script data-card-contents-for-ri="11541" type="text/json">{"id":11541,"name":"Graphene","url":"https://www.academia.edu/Documents/in/Graphene?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="21731" rel="nofollow" href="https://www.academia.edu/Documents/in/EPR_ESR">EPR, ESR</a>, <script data-card-contents-for-ri="21731" type="text/json">{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="35267" rel="nofollow" href="https://www.academia.edu/Documents/in/Photoluminescence">Photoluminescence</a><script data-card-contents-for-ri="35267" type="text/json">{"id":35267,"name":"Photoluminescence","url":"https://www.academia.edu/Documents/in/Photoluminescence?f_ri=21731","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=6551925]'), work: {"id":6551925,"title":"Comparative electron paramagnetic resonance investigation of reduced graphene oxide and carbon nanotubes with different chemical functionalities for quantum dot attachment","created_at":"2014-03-26T00:19:16.296-07:00","url":"https://www.academia.edu/6551925/Comparative_electron_paramagnetic_resonance_investigation_of_reduced_graphene_oxide_and_carbon_nanotubes_with_different_chemical_functionalities_for_quantum_dot_attachment?f_ri=21731","dom_id":"work_6551925","summary":"Electron paramagnetic resonance (EPR) spectroscopy has been applied to different chemically treated reduced graphene oxide (rGO) and multiwalled carbon nanotubes (CNTs). A narrow EPR signal is visible at g¼2.0029 in both GO and CNT-Oxide from carbon-related dangling bonds. EPR signals became broader and of lower intensity after oxygen-containing functionalities were reduced and partially transformed into thiol groups to obtain thiol-functionalized reduced GO (TrGO) and thiol-functionalized CNT (CNT-SH), respectively. Additionally, EPR investigation of CdSe quantum dot-TrGO hybrid material reveals complete quenching of the TrGO EPR signal due to direct chemical attachment and electronic coupling. Our work confirms that EPR is a suitable tool to detect spin density changes in different functionalized nanocarbon materials and can contribute to improved understanding of electronic coupling effects in nanocarbon- nanoparticle hybrid nano-composites promising for various electronic and optoelectronic applications.","downloadable_attachments":[{"id":33400331,"asset_id":6551925,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":673216,"first_name":"Emre","last_name":"Erdem","domain_name":"uni-freiburg","page_name":"EmreErdem","display_name":"Emre Erdem","profile_url":"https://uni-freiburg.academia.edu/EmreErdem?f_ri=21731","photo":"https://0.academia-photos.com/673216/235097/16292589/s65_emre.erdem.jpg"}],"research_interests":[{"id":10909,"name":"Carbon Nanotubes","url":"https://www.academia.edu/Documents/in/Carbon_Nanotubes?f_ri=21731","nofollow":true},{"id":11541,"name":"Graphene","url":"https://www.academia.edu/Documents/in/Graphene?f_ri=21731","nofollow":true},{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true},{"id":35267,"name":"Photoluminescence","url":"https://www.academia.edu/Documents/in/Photoluminescence?f_ri=21731","nofollow":true},{"id":50095,"name":"Defects in Semiconductors","url":"https://www.academia.edu/Documents/in/Defects_in_Semiconductors?f_ri=21731"},{"id":523764,"name":"Electron Paramagnetic Resonance Spectroscopy","url":"https://www.academia.edu/Documents/in/Electron_Paramagnetic_Resonance_Spectroscopy?f_ri=21731"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_3186821" data-work_id="3186821" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/3186821/Investigation_of_intrinsic_defects_in_core_shell_structured_ZnO_nanocrystals">Investigation of intrinsic defects in core-shell structured ZnO nanocrystals</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Nanocrystalline ZnO particles were prepared using the high-energy ball milling technique and investigated with electron paramagnetic resonance (EPR), impedance, and Raman spectroscopy to reveal the origin of surface and core defects. We... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_3186821" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Nanocrystalline ZnO particles were prepared using the high-energy ball milling technique and investigated with electron paramagnetic resonance (EPR), impedance, and Raman spectroscopy to reveal the origin of surface and core defects. We observed two distinct EPR signals with different g-factors, g ∼ 2.0 and ∼1.96, indicating EPR-active defects on the surface and core, respectively. Using the semi-empirical core-shell model, we identified that sufficiently small nanocrystals (below 30 nm) can show p-type character. The model can also explain the origin of the non-linearity of the U-I behaviour in nanocrystalline ZnO.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/3186821" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="6a3f24f9503a219c61fc6cfeb4e99561" rel="nofollow" data-download="{"attachment_id":31259549,"asset_id":3186821,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/31259549/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="673216" href="https://uni-freiburg.academia.edu/EmreErdem">Emre Erdem</a><script data-card-contents-for-user="673216" type="text/json">{"id":673216,"first_name":"Emre","last_name":"Erdem","domain_name":"uni-freiburg","page_name":"EmreErdem","display_name":"Emre Erdem","profile_url":"https://uni-freiburg.academia.edu/EmreErdem?f_ri=21731","photo":"https://0.academia-photos.com/673216/235097/16292589/s65_emre.erdem.jpg"}</script></span></span></li><li class="js-paper-rank-work_3186821 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="3186821"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 3186821, container: ".js-paper-rank-work_3186821", }); });</script></li><li class="js-percentile-work_3186821 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 3186821; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_3186821"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_3186821 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="3186821"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 3186821; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=3186821]").text(description); $(".js-view-count-work_3186821").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_3186821").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="3186821"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">2</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="21731" rel="nofollow" href="https://www.academia.edu/Documents/in/EPR_ESR">EPR, ESR</a>, <script data-card-contents-for-ri="21731" type="text/json">{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="50095" rel="nofollow" href="https://www.academia.edu/Documents/in/Defects_in_Semiconductors">Defects in Semiconductors</a><script data-card-contents-for-ri="50095" type="text/json">{"id":50095,"name":"Defects in Semiconductors","url":"https://www.academia.edu/Documents/in/Defects_in_Semiconductors?f_ri=21731","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=3186821]'), work: {"id":3186821,"title":"Investigation of intrinsic defects in core-shell structured ZnO nanocrystals","created_at":"2013-04-01T23:19:27.286-07:00","url":"https://www.academia.edu/3186821/Investigation_of_intrinsic_defects_in_core_shell_structured_ZnO_nanocrystals?f_ri=21731","dom_id":"work_3186821","summary":"Nanocrystalline ZnO particles were prepared using the high-energy ball milling technique and investigated with electron paramagnetic resonance (EPR), impedance, and Raman spectroscopy to reveal the origin of surface and core defects. We observed two distinct EPR signals with different g-factors, g ∼ 2.0 and ∼1.96, indicating EPR-active defects on the surface and core, respectively. Using the semi-empirical core-shell model, we identified that sufficiently small nanocrystals (below 30 nm) can show p-type character. The model can also explain the origin of the non-linearity of the U-I behaviour in nanocrystalline ZnO.","downloadable_attachments":[{"id":31259549,"asset_id":3186821,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":673216,"first_name":"Emre","last_name":"Erdem","domain_name":"uni-freiburg","page_name":"EmreErdem","display_name":"Emre Erdem","profile_url":"https://uni-freiburg.academia.edu/EmreErdem?f_ri=21731","photo":"https://0.academia-photos.com/673216/235097/16292589/s65_emre.erdem.jpg"}],"research_interests":[{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true},{"id":50095,"name":"Defects in Semiconductors","url":"https://www.academia.edu/Documents/in/Defects_in_Semiconductors?f_ri=21731","nofollow":true}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_41287873" data-work_id="41287873" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/41287873/Achieving_consistent_extended_producer_responsibility_policies_for_plastics_in_Canada_Responses_to_the_CCME">Achieving consistent extended producer responsibility policies for plastics in Canada: Responses to the CCME</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">The Canadian provinces need to fulfil their commitments to implement Extended Producer Responsibility (EPR) that they made first in 2009. This is a comment that has not been directly made in the CCME discussion paper and this key issue... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_41287873" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">The Canadian provinces need to fulfil their commitments to implement Extended Producer Responsibility (EPR) that they made first in 2009.  This is a comment that has not been directly made in the CCME discussion paper and this key issue is instead wrapped in soft nuanced language about issues such as accessibility. For example, in the area of packaging waste we only have one province, British Columbia (BC), that has implemented a product stewardship regime for packaging wastes approximating full EPR. We have four others, Ontario included, that have varying degrees of producer funding but no full EPR. Meanwhile five provinces have absolutely no coherent and comprehensive laws and programs on EPR for packaging, leaving the entire financial and operational burden to increasingly challenged municipalities who already are facing significant financial pressures related to climate change mitigation adaptation, infrastructure, housing, and policing. <br /><br />New Brunswick is in the latter category and the NB government has recently announced it will legislate EPR for packaging. Ontario is moving to transition the current framework to full EPR but with a transition that will take up to 6 years. Moreover, there are strong indications in a February 2019 discussion paper released by the Ontario Ministry of Environment, Conservation and Parks (MECP) that Ontario intends to facilitate alternative treatment methods for low value plastics currently collected in curbside programs such as its Blue Box Program (BBP).</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/41287873" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="a8ad31b97a80b8e02904c0cece179943" rel="nofollow" data-download="{"attachment_id":61506749,"asset_id":41287873,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/61506749/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="31380789" href="https://yorku.academia.edu/DavidMcRobert">David McRobert</a><script data-card-contents-for-user="31380789" type="text/json">{"id":31380789,"first_name":"David","last_name":"McRobert","domain_name":"yorku","page_name":"DavidMcRobert","display_name":"David McRobert","profile_url":"https://yorku.academia.edu/DavidMcRobert?f_ri=21731","photo":"https://0.academia-photos.com/31380789/9726905/10834809/s65_david.mcrobert.jpg_oh_b9d920c841a5c7b6a0172a0b3cf05619_oe_56315f9c___gda___1441397503_82595c3d2a192f8c52879304840e8b3e"}</script></span></span></li><li class="js-paper-rank-work_41287873 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="41287873"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 41287873, container: ".js-paper-rank-work_41287873", }); 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$(".js-view-count[data-work-id=41287873]").text(description); $(".js-view-count-work_41287873").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_41287873").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="41287873"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">18</a>  </div><span class="InlineList-item-text u-textTruncate u-pl10x"><a class="InlineList-item-text" data-has-card-for-ri="68" rel="nofollow" href="https://www.academia.edu/Documents/in/Bioengineering">Bioengineering</a>, <script data-card-contents-for-ri="68" type="text/json">{"id":68,"name":"Bioengineering","url":"https://www.academia.edu/Documents/in/Bioengineering?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="402" rel="nofollow" href="https://www.academia.edu/Documents/in/Environmental_Science">Environmental Science</a>, <script data-card-contents-for-ri="402" type="text/json">{"id":402,"name":"Environmental Science","url":"https://www.academia.edu/Documents/in/Environmental_Science?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="523" rel="nofollow" href="https://www.academia.edu/Documents/in/Chemistry">Chemistry</a>, <script data-card-contents-for-ri="523" type="text/json">{"id":523,"name":"Chemistry","url":"https://www.academia.edu/Documents/in/Chemistry?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="1307" rel="nofollow" href="https://www.academia.edu/Documents/in/Environmental_Law">Environmental Law</a><script data-card-contents-for-ri="1307" type="text/json">{"id":1307,"name":"Environmental Law","url":"https://www.academia.edu/Documents/in/Environmental_Law?f_ri=21731","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=41287873]'), work: {"id":41287873,"title":"Achieving consistent extended producer responsibility policies for plastics in Canada: Responses to the CCME","created_at":"2019-12-13T10:50:10.470-08:00","url":"https://www.academia.edu/41287873/Achieving_consistent_extended_producer_responsibility_policies_for_plastics_in_Canada_Responses_to_the_CCME?f_ri=21731","dom_id":"work_41287873","summary":"The Canadian provinces need to fulfil their commitments to implement Extended Producer Responsibility (EPR) that they made first in 2009. This is a comment that has not been directly made in the CCME discussion paper and this key issue is instead wrapped in soft nuanced language about issues such as accessibility. For example, in the area of packaging waste we only have one province, British Columbia (BC), that has implemented a product stewardship regime for packaging wastes approximating full EPR. We have four others, Ontario included, that have varying degrees of producer funding but no full EPR. Meanwhile five provinces have absolutely no coherent and comprehensive laws and programs on EPR for packaging, leaving the entire financial and operational burden to increasingly challenged municipalities who already are facing significant financial pressures related to climate change mitigation adaptation, infrastructure, housing, and policing. \n\nNew Brunswick is in the latter category and the NB government has recently announced it will legislate EPR for packaging. Ontario is moving to transition the current framework to full EPR but with a transition that will take up to 6 years. Moreover, there are strong indications in a February 2019 discussion paper released by the Ontario Ministry of Environment, Conservation and Parks (MECP) that Ontario intends to facilitate alternative treatment methods for low value plastics currently collected in curbside programs such as its Blue Box Program (BBP).\n","downloadable_attachments":[{"id":61506749,"asset_id":41287873,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":31380789,"first_name":"David","last_name":"McRobert","domain_name":"yorku","page_name":"DavidMcRobert","display_name":"David McRobert","profile_url":"https://yorku.academia.edu/DavidMcRobert?f_ri=21731","photo":"https://0.academia-photos.com/31380789/9726905/10834809/s65_david.mcrobert.jpg_oh_b9d920c841a5c7b6a0172a0b3cf05619_oe_56315f9c___gda___1441397503_82595c3d2a192f8c52879304840e8b3e"}],"research_interests":[{"id":68,"name":"Bioengineering","url":"https://www.academia.edu/Documents/in/Bioengineering?f_ri=21731","nofollow":true},{"id":402,"name":"Environmental Science","url":"https://www.academia.edu/Documents/in/Environmental_Science?f_ri=21731","nofollow":true},{"id":523,"name":"Chemistry","url":"https://www.academia.edu/Documents/in/Chemistry?f_ri=21731","nofollow":true},{"id":1307,"name":"Environmental Law","url":"https://www.academia.edu/Documents/in/Environmental_Law?f_ri=21731","nofollow":true},{"id":2513,"name":"Molecular Biology","url":"https://www.academia.edu/Documents/in/Molecular_Biology?f_ri=21731"},{"id":5021,"name":"Packaging","url":"https://www.academia.edu/Documents/in/Packaging?f_ri=21731"},{"id":5413,"name":"Bioenergy","url":"https://www.academia.edu/Documents/in/Bioenergy?f_ri=21731"},{"id":5645,"name":"Recycling","url":"https://www.academia.edu/Documents/in/Recycling?f_ri=21731"},{"id":7602,"name":"Waste recycling","url":"https://www.academia.edu/Documents/in/Waste_recycling?f_ri=21731"},{"id":7609,"name":"Environmental Management","url":"https://www.academia.edu/Documents/in/Environmental_Management?f_ri=21731"},{"id":14085,"name":"Waste Management","url":"https://www.academia.edu/Documents/in/Waste_Management?f_ri=21731"},{"id":14136,"name":"Pyrolysis","url":"https://www.academia.edu/Documents/in/Pyrolysis?f_ri=21731"},{"id":18845,"name":"Environmental Sustainability","url":"https://www.academia.edu/Documents/in/Environmental_Sustainability?f_ri=21731"},{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731"},{"id":21963,"name":"Solid Waste Management","url":"https://www.academia.edu/Documents/in/Solid_Waste_Management?f_ri=21731"},{"id":104708,"name":"Plastics","url":"https://www.academia.edu/Documents/in/Plastics?f_ri=21731"},{"id":177350,"name":"Reuse","url":"https://www.academia.edu/Documents/in/Reuse?f_ri=21731"},{"id":321721,"name":"Circular Economy","url":"https://www.academia.edu/Documents/in/Circular_Economy?f_ri=21731"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_25336974 coauthored" data-work_id="25336974" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/25336974/The_Suppression_of_Columnar_%CF%80_Stacking_in_3_Adamantyl_1_phenyl_1_4_dihydrobenzo_e_1_2_4_triazin_4_yl">The Suppression of Columnar π-Stacking in 3-Adamantyl-1-phenyl-1,4- dihydrobenzo[e][1,2,4]triazin-4-yl</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">3-Adamantyl-1-phenyl-1,4-dihydrobenzo[e][1,2,4]triazin-4-yl (4) crystallizes as chains of radicals where the spin bearing benzotriazinyl moieties are isolated from each other. Magnetic susceptibility studies in the 5–300 K temperature... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_25336974" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">3-Adamantyl-1-phenyl-1,4-dihydrobenzo[e][1,2,4]triazin-4-yl (4) crystallizes as chains of radicals where the spin bearing benzotriazinyl moieties are isolated from each other. Magnetic susceptibility studies in the 5–300 K temperature region indicate that radical 4 demonstrates typical paramagnetic behavior stemming from non-interacting S = ½ spins.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/25336974" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="a2e33d9373c09d93239d67d0add476bc" rel="nofollow" data-download="{"attachment_id":45635728,"asset_id":25336974,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/45635728/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="35083267" href="https://ucy.academia.edu/PanayiotisKoutentis">Panayiotis Koutentis</a><script data-card-contents-for-user="35083267" type="text/json">{"id":35083267,"first_name":"Panayiotis","last_name":"Koutentis","domain_name":"ucy","page_name":"PanayiotisKoutentis","display_name":"Panayiotis Koutentis","profile_url":"https://ucy.academia.edu/PanayiotisKoutentis?f_ri=21731","photo":"https://0.academia-photos.com/35083267/10219855/11404973/s65_panayiotis.koutentis.png"}</script></span></span><span class="u-displayInlineBlock InlineList-item-text"> and <span class="u-textDecorationUnderline u-clickable InlineList-item-text js-work-more-authors-25336974">+2</span><div class="hidden js-additional-users-25336974"><div><span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a href="https://ucy.academia.edu/GeorgiaZissimou">Georgia Zissimou</a></span></div><div><span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a href="https://weizmann.academia.edu/GregoryLeitus">Gregory Leitus</a></span></div></div></span><script>(function(){ var popoverSettings = { el: $('.js-work-more-authors-25336974'), placement: 'bottom', hide_delay: 200, html: true, content: function(){ return $('.js-additional-users-25336974').html(); 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Magnetic susceptibility studies in the 5–300 K temperature region indicate that radical 4 demonstrates typical paramagnetic behavior stemming from non-interacting S = ½ spins.","downloadable_attachments":[{"id":45635728,"asset_id":25336974,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":35083267,"first_name":"Panayiotis","last_name":"Koutentis","domain_name":"ucy","page_name":"PanayiotisKoutentis","display_name":"Panayiotis Koutentis","profile_url":"https://ucy.academia.edu/PanayiotisKoutentis?f_ri=21731","photo":"https://0.academia-photos.com/35083267/10219855/11404973/s65_panayiotis.koutentis.png"},{"id":1526829,"first_name":"Georgia","last_name":"Zissimou","domain_name":"ucy","page_name":"GeorgiaZissimou","display_name":"Georgia Zissimou","profile_url":"https://ucy.academia.edu/GeorgiaZissimou?f_ri=21731","photo":"https://0.academia-photos.com/1526829/7867204/8814455/s65_georgia.zissimou.jpg"},{"id":1812857,"first_name":"Gregory","last_name":"Leitus","domain_name":"weizmann","page_name":"GregoryLeitus","display_name":"Gregory Leitus","profile_url":"https://weizmann.academia.edu/GregoryLeitus?f_ri=21731","photo":"https://0.academia-photos.com/1812857/618789/767999/s65_gregory.leitus.jpg"}],"research_interests":[{"id":511,"name":"Materials Science","url":"https://www.academia.edu/Documents/in/Materials_Science?f_ri=21731","nofollow":true},{"id":523,"name":"Chemistry","url":"https://www.academia.edu/Documents/in/Chemistry?f_ri=21731","nofollow":true},{"id":531,"name":"Organic Chemistry","url":"https://www.academia.edu/Documents/in/Organic_Chemistry?f_ri=21731","nofollow":true},{"id":532,"name":"Physical Chemistry","url":"https://www.academia.edu/Documents/in/Physical_Chemistry?f_ri=21731","nofollow":true},{"id":1177,"name":"Crystallography","url":"https://www.academia.edu/Documents/in/Crystallography?f_ri=21731"},{"id":2737,"name":"Heterocyclic chemistry","url":"https://www.academia.edu/Documents/in/Heterocyclic_chemistry?f_ri=21731"},{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731"},{"id":510090,"name":"Magnetism and Magnetic Materials","url":"https://www.academia.edu/Documents/in/Magnetism_and_Magnetic_Materials?f_ri=21731"},{"id":812860,"name":"Heterocycles","url":"https://www.academia.edu/Documents/in/Heterocycles?f_ri=21731"},{"id":891812,"name":"Nitrogen Heterocyclic Rings","url":"https://www.academia.edu/Documents/in/Nitrogen_Heterocyclic_Rings?f_ri=21731"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_17646988" data-work_id="17646988" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/17646988/Note_on_the_EPR_Chameleon_experiment">Note on the EPR-Chameleon experiment</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">In the past 20 years quantum probability has challanged the widespread belief that classical macroscopic systems cannot, by local independent choices, produce sequences of data whose correlations violate Bell's inequality. The possibility... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_17646988" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">In the past 20 years quantum probability has challanged the widespread belief that classical macroscopic systems cannot, by local independent choices, produce sequences of data whose correlations violate Bell's inequality. The possibility of such a violation is not a matter of interpretation, but of fact: "local independent choices" means that two separated and non communicating experimenters make measurements but one does not know what the other measures (or even if the other one measures something); correlations are evaluated by means of standard procedures. The present experiment shows that this is not the case: in no way the EPR correlations and related experiments can be considered as a support of the incompatibility of quantum theory with local realistic theories, in particular relativity.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/17646988" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="f3d11e3959425ab6d5feb4d1309c5cc8" rel="nofollow" data-download="{"attachment_id":39634224,"asset_id":17646988,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/39634224/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="30299607" href="https://uniroma2.academia.edu/LuigiAccardi">Luigi Accardi</a><script data-card-contents-for-user="30299607" type="text/json">{"id":30299607,"first_name":"Luigi","last_name":"Accardi","domain_name":"uniroma2","page_name":"LuigiAccardi","display_name":"Luigi Accardi","profile_url":"https://uniroma2.academia.edu/LuigiAccardi?f_ri=21731","photo":"https://0.academia-photos.com/30299607/9877021/11010415/s65_luigi.accardi.jpg"}</script></span></span></li><li class="js-paper-rank-work_17646988 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="17646988"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 17646988, container: ".js-paper-rank-work_17646988", }); });</script></li><li class="js-percentile-work_17646988 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 17646988; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_17646988"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_17646988 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="17646988"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 17646988; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=17646988]").text(description); $(".js-view-count-work_17646988").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_17646988").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="17646988"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">2</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="21731" rel="nofollow" href="https://www.academia.edu/Documents/in/EPR_ESR">EPR, ESR</a>, <script data-card-contents-for-ri="21731" type="text/json">{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="1219804" rel="nofollow" href="https://www.academia.edu/Documents/in/The_Chameleon_Effect">The Chameleon Effect</a><script data-card-contents-for-ri="1219804" type="text/json">{"id":1219804,"name":"The Chameleon Effect","url":"https://www.academia.edu/Documents/in/The_Chameleon_Effect?f_ri=21731","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=17646988]'), work: {"id":17646988,"title":"Note on the EPR-Chameleon experiment","created_at":"2015-11-03T03:30:46.100-08:00","url":"https://www.academia.edu/17646988/Note_on_the_EPR_Chameleon_experiment?f_ri=21731","dom_id":"work_17646988","summary":"In the past 20 years quantum probability has challanged the widespread belief that classical macroscopic systems cannot, by local independent choices, produce sequences of data whose correlations violate Bell's inequality. The possibility of such a violation is not a matter of interpretation, but of fact: \"local independent choices\" means that two separated and non communicating experimenters make measurements but one does not know what the other measures (or even if the other one measures something); correlations are evaluated by means of standard procedures. The present experiment shows that this is not the case: in no way the EPR correlations and related experiments can be considered as a support of the incompatibility of quantum theory with local realistic theories, in particular relativity.","downloadable_attachments":[{"id":39634224,"asset_id":17646988,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":30299607,"first_name":"Luigi","last_name":"Accardi","domain_name":"uniroma2","page_name":"LuigiAccardi","display_name":"Luigi Accardi","profile_url":"https://uniroma2.academia.edu/LuigiAccardi?f_ri=21731","photo":"https://0.academia-photos.com/30299607/9877021/11010415/s65_luigi.accardi.jpg"}],"research_interests":[{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true},{"id":1219804,"name":"The Chameleon Effect","url":"https://www.academia.edu/Documents/in/The_Chameleon_Effect?f_ri=21731","nofollow":true}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_4678364" data-work_id="4678364" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/4678364/NATURAL_RADIATION_INDUCED_DAMAGE_IN_QUARTZ_II_DISTRIBUTION_AND_IMPLICATIONS_FOR_URANIUM_MINERALIZATION_IN_THE_ATHABASCA_BASIN_SASKATCHEWAN_CANADA">NATURAL RADIATION-INDUCED DAMAGE IN QUARTZ. II. DISTRIBUTION AND IMPLICATIONS FOR URANIUM MINERALIZATION IN THE ATHABASCA BASIN, SASKATCHEWAN, CANADA</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">The distribution of natural radiation-induced damage in quartz from the uranium-mineralized Athabasca basin in northern Saskatchewan has been investigated by cathodoluminescence (CL) imaging and electron paramagnetic resonance (EPR)... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_4678364" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">The distribution of natural radiation-induced damage in quartz from the uranium-mineralized Athabasca basin in northern Saskatchewan has been investigated by cathodoluminescence (CL) imaging and electron paramagnetic resonance (EPR) spectroscopy. With CL imaging, it is not only possible to distinguish two generations of overgrowths on detrital quartz, but also to reveal three types of alpha-particle-induced damage in quartz: 1) halos around inclusions of U-and Th-bearing minerals, 2) patches in contact with U-bearing minerals in matrices or pores, and 3) continuous rims in samples with or without any U-bearing minerals. CL halos in detrital quartz grains are mostly associated with zircon inclusions, whereas those in overgrowths mainly surround crandallite inclusions. CL patches are widespread, but are particularly abundant in altered sandstones close to the sandstone-basement unconformity and faults. Continuous CL rims occur not only in mineralized rocks close to the unconformity at the Key Lake deposit, but are pervasively developed in the siliceous cap and along the unconformity at the McArthur River deposit and the neighboring BJ prospect. With EPR, which is more sensitive in detecting dilute radiation-induced defects than CL, we confi rm the results of CL imaging that radiation-induced defects are best developed in quartz grains from the unconformity, lithological boundaries, faults and fractures. Continuous CL rims on quartz grains most likely formed from bombardments of alpha particles emitted from U-bearing fl uids. The restricted occurrences of continuous CL rims suggest channelized uranium-bearing fl uids in the Athabasca basin. The presence of continuous CL rims on detrital quartz grains and the local abundance of U-bearing minerals in both generations of overgrowths suggest that uranium was present in early diagenetic fl uids and that mineralization commenced during the early stage of diagenesis and continued during the peak diagenesis. The absence of radiation-induced damage in quartz from altered basement rocks below the McArthur River deposit supports our proposal that basement fl uids were poor in uranium. The common occurrence of radiation-induced damage in quartz from reactivated fractures, faults and voids provides further evidence for late remobilization of uranium. SOMMAIRE Nous évaluons la distribution du dommage dû à la radiation dans le quartz provenant des zones minéralisées en uranium dans le bassin d'Athabasca, dans le nord du Saskatchewan, selon des images de la distibution de la cathodoluminescence (CL) et la spectroscopie de la résonance paramagnétique des électrons (EPR). Dans les images CL, il est non seulement possible de distinguer deux générations de surcroissances sur le quartz détritique, mais aussi de reconnaître trois sortes de dommage dû au particules alpha: 1) aureoles autour des inclusions de minéraux uranifères et thorifères, 2) taches dans le quartz près des minéraux uranifères dans la matrice ou les pores, et 3) liserés continus dans les grains avec ou sans minéraux uranifères. Les aureoles CL dans les grains de quartz détritique apparaissent surtout autour des grains de zircon inclus, tandis que celles dans les surcroissances seraient surtout dues aux inclusions de crandallite. Les taches de CL sont répandues, mais apparaissent surtout dans les grès altérés près du contact discordant avec le socle ou près de failles. Les liserés cathodoluminescents continus se trouvent non seulement dans les roches minéralisées près de la discordance au gisement de Key Lake, mais ils sont aussi répandus dans la coiffe siliceuse et le long de la discordance au gisement de McArthur River et à l'indice BJ, avoisinant. Avec la méthode EPR, qui est plus sensible que CL pour détecter le dommage dû à des défauts à un niveau plus faible, nous pouvons confi rmer les résultats des images CL, que les défauts dus à la radiation sont le plus évidents dans les grains de quartz près de la discordance et des contacts lithologiques, failles et fractures. Les liserés cathodoluminescents continus sur les grains de quartz résulteraient probablement de bombardements de particules alpha émises à partir des fl uides uranifères. D'après la distribution limitée de § E-mail address: <a href="mailto:yuanming.pan@usask.ca" rel="nofollow">yuanming.pan@usask.ca</a> (Traduit par la Rédaction)</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/4678364" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="c4631cc0f53360239c6f51f4e82f8660" rel="nofollow" data-download="{"attachment_id":49700694,"asset_id":4678364,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/49700694/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="5943316" href="https://utoronto.academia.edu/SergiyNokhrin">Sergiy Nokhrin</a><script data-card-contents-for-user="5943316" type="text/json">{"id":5943316,"first_name":"Sergiy","last_name":"Nokhrin","domain_name":"utoronto","page_name":"SergiyNokhrin","display_name":"Sergiy Nokhrin","profile_url":"https://utoronto.academia.edu/SergiyNokhrin?f_ri=21731","photo":"/images/s65_no_pic.png"}</script></span></span></li><li class="js-paper-rank-work_4678364 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="4678364"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 4678364, container: ".js-paper-rank-work_4678364", }); });</script></li><li class="js-percentile-work_4678364 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 4678364; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_4678364"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_4678364 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="4678364"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 4678364; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=4678364]").text(description); $(".js-view-count-work_4678364").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_4678364").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="4678364"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">2</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="519" rel="nofollow" href="https://www.academia.edu/Documents/in/Solid_State_Physics">Solid State Physics</a>, <script data-card-contents-for-ri="519" type="text/json">{"id":519,"name":"Solid State Physics","url":"https://www.academia.edu/Documents/in/Solid_State_Physics?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="21731" rel="nofollow" href="https://www.academia.edu/Documents/in/EPR_ESR">EPR, ESR</a><script data-card-contents-for-ri="21731" type="text/json">{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=4678364]'), work: {"id":4678364,"title":"NATURAL RADIATION-INDUCED DAMAGE IN QUARTZ. II. DISTRIBUTION AND IMPLICATIONS FOR URANIUM MINERALIZATION IN THE ATHABASCA BASIN, SASKATCHEWAN, CANADA","created_at":"2013-10-04T15:03:13.188-07:00","url":"https://www.academia.edu/4678364/NATURAL_RADIATION_INDUCED_DAMAGE_IN_QUARTZ_II_DISTRIBUTION_AND_IMPLICATIONS_FOR_URANIUM_MINERALIZATION_IN_THE_ATHABASCA_BASIN_SASKATCHEWAN_CANADA?f_ri=21731","dom_id":"work_4678364","summary":"The distribution of natural radiation-induced damage in quartz from the uranium-mineralized Athabasca basin in northern Saskatchewan has been investigated by cathodoluminescence (CL) imaging and electron paramagnetic resonance (EPR) spectroscopy. With CL imaging, it is not only possible to distinguish two generations of overgrowths on detrital quartz, but also to reveal three types of alpha-particle-induced damage in quartz: 1) halos around inclusions of U-and Th-bearing minerals, 2) patches in contact with U-bearing minerals in matrices or pores, and 3) continuous rims in samples with or without any U-bearing minerals. CL halos in detrital quartz grains are mostly associated with zircon inclusions, whereas those in overgrowths mainly surround crandallite inclusions. CL patches are widespread, but are particularly abundant in altered sandstones close to the sandstone-basement unconformity and faults. Continuous CL rims occur not only in mineralized rocks close to the unconformity at the Key Lake deposit, but are pervasively developed in the siliceous cap and along the unconformity at the McArthur River deposit and the neighboring BJ prospect. With EPR, which is more sensitive in detecting dilute radiation-induced defects than CL, we confi rm the results of CL imaging that radiation-induced defects are best developed in quartz grains from the unconformity, lithological boundaries, faults and fractures. Continuous CL rims on quartz grains most likely formed from bombardments of alpha particles emitted from U-bearing fl uids. The restricted occurrences of continuous CL rims suggest channelized uranium-bearing fl uids in the Athabasca basin. The presence of continuous CL rims on detrital quartz grains and the local abundance of U-bearing minerals in both generations of overgrowths suggest that uranium was present in early diagenetic fl uids and that mineralization commenced during the early stage of diagenesis and continued during the peak diagenesis. The absence of radiation-induced damage in quartz from altered basement rocks below the McArthur River deposit supports our proposal that basement fl uids were poor in uranium. The common occurrence of radiation-induced damage in quartz from reactivated fractures, faults and voids provides further evidence for late remobilization of uranium. SOMMAIRE Nous évaluons la distribution du dommage dû à la radiation dans le quartz provenant des zones minéralisées en uranium dans le bassin d'Athabasca, dans le nord du Saskatchewan, selon des images de la distibution de la cathodoluminescence (CL) et la spectroscopie de la résonance paramagnétique des électrons (EPR). Dans les images CL, il est non seulement possible de distinguer deux générations de surcroissances sur le quartz détritique, mais aussi de reconnaître trois sortes de dommage dû au particules alpha: 1) aureoles autour des inclusions de minéraux uranifères et thorifères, 2) taches dans le quartz près des minéraux uranifères dans la matrice ou les pores, et 3) liserés continus dans les grains avec ou sans minéraux uranifères. Les aureoles CL dans les grains de quartz détritique apparaissent surtout autour des grains de zircon inclus, tandis que celles dans les surcroissances seraient surtout dues aux inclusions de crandallite. Les taches de CL sont répandues, mais apparaissent surtout dans les grès altérés près du contact discordant avec le socle ou près de failles. Les liserés cathodoluminescents continus se trouvent non seulement dans les roches minéralisées près de la discordance au gisement de Key Lake, mais ils sont aussi répandus dans la coiffe siliceuse et le long de la discordance au gisement de McArthur River et à l'indice BJ, avoisinant. Avec la méthode EPR, qui est plus sensible que CL pour détecter le dommage dû à des défauts à un niveau plus faible, nous pouvons confi rmer les résultats des images CL, que les défauts dus à la radiation sont le plus évidents dans les grains de quartz près de la discordance et des contacts lithologiques, failles et fractures. Les liserés cathodoluminescents continus sur les grains de quartz résulteraient probablement de bombardements de particules alpha émises à partir des fl uides uranifères. D'après la distribution limitée de § E-mail address: yuanming.pan@usask.ca (Traduit par la Rédaction)","downloadable_attachments":[{"id":49700694,"asset_id":4678364,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":5943316,"first_name":"Sergiy","last_name":"Nokhrin","domain_name":"utoronto","page_name":"SergiyNokhrin","display_name":"Sergiy Nokhrin","profile_url":"https://utoronto.academia.edu/SergiyNokhrin?f_ri=21731","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":519,"name":"Solid State Physics","url":"https://www.academia.edu/Documents/in/Solid_State_Physics?f_ri=21731","nofollow":true},{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_28288884" data-work_id="28288884" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/28288884/Electromagnetic_wave_theory">Electromagnetic wave theory</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Charges give rise to electric fields. Current give rise to magnetic fields. In this section, we will study the magnetic fields induced by steady currents. This means that we are again looking for time independent solutions to the Maxwell... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_28288884" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Charges give rise to electric fields. Current give rise to magnetic fields. In this section, we will study the magnetic fields induced by steady currents. This means that we are again looking for time independent solutions to the Maxwell equations. We will also restrict to situations in which the charge density vanishes, so ρ = 0. We can then set E = 0 and focus our attention only on the magnetic field. We're left with two Maxwell equations to solve: ∇ × B = µ 0 J (3.1) and ∇ · B = 0 (3.2) If you fix the current density J, these equations have a unique solution. Our goal in this section is to find it. Steady Currents Before we solve (3.1) and (3.2), let's pause to think about the kind of currents that we're considering in this section. Because ρ = 0, there can't be any net charge. But, of course, we still want charge to be moving! This means that we necessarily have both positive and negative charges which balance out at all points in space. Nonetheless, these charges can move so there is a current even though there is no net charge transport. This may sound artificial, but in fact it's exactly what happens in a typical wire. In that case, there is background of positive charge due to the lattice of ions in the metal. Meanwhile, the electrons are free to move. But they all move together so that at each point we still have ρ = 0. The continuity equation, which captures the conservation of electric charge, is ∂ρ ∂t + ∇ · J = 0 Since the charge density is unchanging (and, indeed, vanishing), we have ∇ · J = 0 Mathematically, this is just saying that if a current flows into some region of space, an equal current must flow out to avoid the build up of charge. Note that this is consistent with (3.1) since, for any vector field, ∇ · (∇ × B) = 0. – 41 –</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/28288884" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="f58753eec3ec6731dc7459bd373397c8" rel="nofollow" data-download="{"attachment_id":48619187,"asset_id":28288884,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/48619187/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="53040218" href="https://independent.academia.edu/adlyelsayd">adly elsayd</a><script data-card-contents-for-user="53040218" type="text/json">{"id":53040218,"first_name":"adly","last_name":"elsayd","domain_name":"independent","page_name":"adlyelsayd","display_name":"adly elsayd","profile_url":"https://independent.academia.edu/adlyelsayd?f_ri=21731","photo":"/images/s65_no_pic.png"}</script></span></span></li><li class="js-paper-rank-work_28288884 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="28288884"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 28288884, container: ".js-paper-rank-work_28288884", }); 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Current give rise to magnetic fields. In this section, we will study the magnetic fields induced by steady currents. This means that we are again looking for time independent solutions to the Maxwell equations. We will also restrict to situations in which the charge density vanishes, so ρ = 0. We can then set E = 0 and focus our attention only on the magnetic field. We're left with two Maxwell equations to solve: ∇ × B = µ 0 J (3.1) and ∇ · B = 0 (3.2) If you fix the current density J, these equations have a unique solution. Our goal in this section is to find it. Steady Currents Before we solve (3.1) and (3.2), let's pause to think about the kind of currents that we're considering in this section. Because ρ = 0, there can't be any net charge. But, of course, we still want charge to be moving! This means that we necessarily have both positive and negative charges which balance out at all points in space. Nonetheless, these charges can move so there is a current even though there is no net charge transport. This may sound artificial, but in fact it's exactly what happens in a typical wire. In that case, there is background of positive charge due to the lattice of ions in the metal. Meanwhile, the electrons are free to move. But they all move together so that at each point we still have ρ = 0. The continuity equation, which captures the conservation of electric charge, is ∂ρ ∂t + ∇ · J = 0 Since the charge density is unchanging (and, indeed, vanishing), we have ∇ · J = 0 Mathematically, this is just saying that if a current flows into some region of space, an equal current must flow out to avoid the build up of charge. Note that this is consistent with (3.1) since, for any vector field, ∇ · (∇ × B) = 0. – 41 –","downloadable_attachments":[{"id":48619187,"asset_id":28288884,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":53040218,"first_name":"adly","last_name":"elsayd","domain_name":"independent","page_name":"adlyelsayd","display_name":"adly elsayd","profile_url":"https://independent.academia.edu/adlyelsayd?f_ri=21731","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":18996,"name":"Experimental Physics","url":"https://www.academia.edu/Documents/in/Experimental_Physics?f_ri=21731","nofollow":true},{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true},{"id":377648,"name":"Physics of Magnetics and Photonics","url":"https://www.academia.edu/Documents/in/Physics_of_Magnetics_and_Photonics?f_ri=21731","nofollow":true}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_17503537" data-work_id="17503537" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/17503537/Radiation_induced_defects_in_quartz_III_Single_crystal_EPR_ENDOR_and_ESEEM_study_of_a_peroxy_radical">Radiation-induced defects in quartz. III. Single-crystal EPR, ENDOR and ESEEM study of a peroxy radical</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">The X- and W-band single-crystal electron paramagnetic resonance spectra of an electron-irradiated natural quartz permit quantitative analysis of a 29Si hyperfine structure (A ~12.6 MHz) and an 27Al hyperfine structure (A< 0.8 MHz) for a... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_17503537" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">The X- and W-band single-crystal electron paramagnetic resonance spectra of an electron-irradiated natural quartz permit quantitative analysis of a 29Si hyperfine structure (A ~12.6 MHz) and an 27Al hyperfine structure (A< 0.8 MHz) for a previously reported holelike center. The 29Si hyperfine structure arises from interaction with two equivalent Si atoms and is characterized by the direction of the unique A axis close to a Si–O bond direction. The 27Al hyperfine structure, onfirmed by pulsed electron nuclear double resonance and electron spin echo envelope modulation spectra, is characterized by the unique A axis approximately along a twofold symmetry axis. These 29Si and 27Al hyperfine data, together with published theoretical results on peroxy radicals in SiO2 as well as our<br />own density functional theory (DFT) calculations on model<br />peroxy centers, suggest this hole-like center to have the<br />unpaired spin on a pair of oxygen atoms linked to two<br />symmetrically equivalent Si atoms and a substitutional Al3+<br />ion across the c-axis channel, a first peroxy radical in quartz.<br />The nuclear quadrupole matrix P also suggests that the Al3+<br />ion corresponds closely to the diamagnetic precursor to the<br />[AlO4]0 center.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/17503537" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="2b6a3459ea484fb5b50e3e80f39f447d" rel="nofollow" data-download="{"attachment_id":39546139,"asset_id":17503537,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/39546139/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="36907166" href="https://iggcas.academia.edu/RudolfMashkovtsev">Rudolf Mashkovtsev</a><script data-card-contents-for-user="36907166" type="text/json">{"id":36907166,"first_name":"Rudolf","last_name":"Mashkovtsev","domain_name":"iggcas","page_name":"RudolfMashkovtsev","display_name":"Rudolf Mashkovtsev","profile_url":"https://iggcas.academia.edu/RudolfMashkovtsev?f_ri=21731","photo":"https://0.academia-photos.com/36907166/10528490/11749446/s65_rudolf.mashkovtsev.jpg"}</script></span></span></li><li class="js-paper-rank-work_17503537 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="17503537"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 17503537, container: ".js-paper-rank-work_17503537", }); 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$(".js-view-count[data-work-id=17503537]").text(description); $(".js-view-count-work_17503537").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_17503537").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="17503537"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">4</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="21731" rel="nofollow" href="https://www.academia.edu/Documents/in/EPR_ESR">EPR, ESR</a>, <script data-card-contents-for-ri="21731" type="text/json">{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="37780" rel="nofollow" href="https://www.academia.edu/Documents/in/EPR_Spectroscopy">EPR Spectroscopy</a>, <script data-card-contents-for-ri="37780" type="text/json">{"id":37780,"name":"EPR Spectroscopy","url":"https://www.academia.edu/Documents/in/EPR_Spectroscopy?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="74607" rel="nofollow" href="https://www.academia.edu/Documents/in/Quartz">Quartz</a>, <script data-card-contents-for-ri="74607" type="text/json">{"id":74607,"name":"Quartz","url":"https://www.academia.edu/Documents/in/Quartz?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="77601" rel="nofollow" href="https://www.academia.edu/Documents/in/DFT_calculation">DFT calculation</a><script data-card-contents-for-ri="77601" type="text/json">{"id":77601,"name":"DFT calculation","url":"https://www.academia.edu/Documents/in/DFT_calculation?f_ri=21731","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=17503537]'), work: {"id":17503537,"title":"Radiation-induced defects in quartz. III. Single-crystal EPR, ENDOR and ESEEM study of a peroxy radical","created_at":"2015-10-30T01:40:09.461-07:00","url":"https://www.academia.edu/17503537/Radiation_induced_defects_in_quartz_III_Single_crystal_EPR_ENDOR_and_ESEEM_study_of_a_peroxy_radical?f_ri=21731","dom_id":"work_17503537","summary":"The X- and W-band single-crystal electron paramagnetic resonance spectra of an electron-irradiated natural quartz permit quantitative analysis of a 29Si hyperfine structure (A ~12.6 MHz) and an 27Al hyperfine structure (A\u003c 0.8 MHz) for a previously reported holelike center. The 29Si hyperfine structure arises from interaction with two equivalent Si atoms and is characterized by the direction of the unique A axis close to a Si–O bond direction. The 27Al hyperfine structure, onfirmed by pulsed electron nuclear double resonance and electron spin echo envelope modulation spectra, is characterized by the unique A axis approximately along a twofold symmetry axis. These 29Si and 27Al hyperfine data, together with published theoretical results on peroxy radicals in SiO2 as well as our\nown density functional theory (DFT) calculations on model\nperoxy centers, suggest this hole-like center to have the\nunpaired spin on a pair of oxygen atoms linked to two\nsymmetrically equivalent Si atoms and a substitutional Al3+\nion across the c-axis channel, a first peroxy radical in quartz.\nThe nuclear quadrupole matrix P also suggests that the Al3+\nion corresponds closely to the diamagnetic precursor to the\n[AlO4]0 center.","downloadable_attachments":[{"id":39546139,"asset_id":17503537,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":36907166,"first_name":"Rudolf","last_name":"Mashkovtsev","domain_name":"iggcas","page_name":"RudolfMashkovtsev","display_name":"Rudolf Mashkovtsev","profile_url":"https://iggcas.academia.edu/RudolfMashkovtsev?f_ri=21731","photo":"https://0.academia-photos.com/36907166/10528490/11749446/s65_rudolf.mashkovtsev.jpg"}],"research_interests":[{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true},{"id":37780,"name":"EPR Spectroscopy","url":"https://www.academia.edu/Documents/in/EPR_Spectroscopy?f_ri=21731","nofollow":true},{"id":74607,"name":"Quartz","url":"https://www.academia.edu/Documents/in/Quartz?f_ri=21731","nofollow":true},{"id":77601,"name":"DFT calculation","url":"https://www.academia.edu/Documents/in/DFT_calculation?f_ri=21731","nofollow":true}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_17503365" data-work_id="17503365" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/17503365/Radiation_induced_defects_in_quartz_II_Single_crystal_W_band_EPR_study_of_a_natural_citrine_quartz">Radiation-induced defects in quartz. II. Single-crystal W-band EPR study of a natural citrine quartz</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Single-crystal electron paramagnetic resonance (EPR) spectra of a natural citrine quartz without any artificial irradiation, measured at W-band frequencies (~94 GHz) and temperatures of 77, 110 and 298 K, allow better characterization of... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_17503365" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Single-crystal electron paramagnetic resonance (EPR) spectra of a natural citrine quartz without any artificial irradiation, measured at W-band frequencies (~94 GHz) and temperatures of 77, 110 and 298 K, allow better characterization of three previously-reported Centers (#6, #7 and B) and discovery of three new defects (B', C' and G'). The W-band EPR spectra reveal that Centers #6 and #7 do not reside on twofold symmetry axes, contrary to results from a previous X-band EPR study. The W-band spectra also show that the previously reported Center B is a mixture of two defects (B and B') with similar g matrices<br />but different-sized 27Al hyperfine structures. Center C' has<br />similar principal g values to the previously reported Center<br />C but is distinct from the latter by a larger 27Al hyperfine<br />structure with splittings from 0.10 to 0.22 mT. Also, Center<br />G' has a similar g matrix to the previously reported Center<br />G but a different 27Al hyperfine structure with splittings<br />from 0.41 to 0.53 mT. These spin-Hamiltonian parameters,<br />together with observed thermal properties and microwavepower dependence, suggest that Centers #6 and #7 probably represent O2\3- type defects. Centers B and B' are<br />probably superoxide radicals (O2 -) with the unpaired spin<br />localized on the same pair of oxygen atoms around a<br />missing Si atom but linked to a substitutional Al3+ ion each<br />at different neighboring tetrahedral sites. Similarly, Centers<br />G and G' are most likely superoxide radicals with the<br />unpaired spin localized on another pair of oxygen atoms<br />around a missing Si atom and linked to a substitutional<br />Al3+ ion each at different neighboring tetrahedral sites.<br />Center C' is probably an ozonide radical associated with a<br />missing Si atom and linked to a substitutional Al3+ ion at<br />the neighboring tetrahedral site. This study exemplifies the<br />value of high-frequency EPR for discrimination of similar<br />defect centers and determination of small local<br />structural distortions that are often difficult to resolve in<br />conventional X- and Q-band EPR studies.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/17503365" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="f22bf504793c758ec8404f13669e4a59" rel="nofollow" data-download="{"attachment_id":39546022,"asset_id":17503365,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/39546022/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="36907166" href="https://iggcas.academia.edu/RudolfMashkovtsev">Rudolf Mashkovtsev</a><script data-card-contents-for-user="36907166" type="text/json">{"id":36907166,"first_name":"Rudolf","last_name":"Mashkovtsev","domain_name":"iggcas","page_name":"RudolfMashkovtsev","display_name":"Rudolf Mashkovtsev","profile_url":"https://iggcas.academia.edu/RudolfMashkovtsev?f_ri=21731","photo":"https://0.academia-photos.com/36907166/10528490/11749446/s65_rudolf.mashkovtsev.jpg"}</script></span></span></li><li class="js-paper-rank-work_17503365 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="17503365"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 17503365, container: ".js-paper-rank-work_17503365", }); 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$(".js-view-count[data-work-id=17503365]").text(description); $(".js-view-count-work_17503365").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_17503365").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="17503365"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">4</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="21731" rel="nofollow" href="https://www.academia.edu/Documents/in/EPR_ESR">EPR, ESR</a>, <script data-card-contents-for-ri="21731" type="text/json">{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="37780" rel="nofollow" href="https://www.academia.edu/Documents/in/EPR_Spectroscopy">EPR Spectroscopy</a>, <script data-card-contents-for-ri="37780" type="text/json">{"id":37780,"name":"EPR Spectroscopy","url":"https://www.academia.edu/Documents/in/EPR_Spectroscopy?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="74607" rel="nofollow" href="https://www.academia.edu/Documents/in/Quartz">Quartz</a>, <script data-card-contents-for-ri="74607" type="text/json">{"id":74607,"name":"Quartz","url":"https://www.academia.edu/Documents/in/Quartz?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="578624" rel="nofollow" href="https://www.academia.edu/Documents/in/Crystal_Defects">Crystal Defects</a><script data-card-contents-for-ri="578624" type="text/json">{"id":578624,"name":"Crystal Defects","url":"https://www.academia.edu/Documents/in/Crystal_Defects?f_ri=21731","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=17503365]'), work: {"id":17503365,"title":"Radiation-induced defects in quartz. II. Single-crystal W-band EPR study of a natural citrine quartz","created_at":"2015-10-30T01:34:09.652-07:00","url":"https://www.academia.edu/17503365/Radiation_induced_defects_in_quartz_II_Single_crystal_W_band_EPR_study_of_a_natural_citrine_quartz?f_ri=21731","dom_id":"work_17503365","summary":"Single-crystal electron paramagnetic resonance (EPR) spectra of a natural citrine quartz without any artificial irradiation, measured at W-band frequencies (~94 GHz) and temperatures of 77, 110 and 298 K, allow better characterization of three previously-reported Centers (#6, #7 and B) and discovery of three new defects (B', C' and G'). The W-band EPR spectra reveal that Centers #6 and #7 do not reside on twofold symmetry axes, contrary to results from a previous X-band EPR study. The W-band spectra also show that the previously reported Center B is a mixture of two defects (B and B') with similar g matrices\nbut different-sized 27Al hyperfine structures. Center C' has\nsimilar principal g values to the previously reported Center\nC but is distinct from the latter by a larger 27Al hyperfine\nstructure with splittings from 0.10 to 0.22 mT. Also, Center\nG' has a similar g matrix to the previously reported Center\nG but a different 27Al hyperfine structure with splittings\nfrom 0.41 to 0.53 mT. These spin-Hamiltonian parameters,\ntogether with observed thermal properties and microwavepower dependence, suggest that Centers #6 and #7 probably represent O2\\3- type defects. Centers B and B' are\nprobably superoxide radicals (O2 -) with the unpaired spin\nlocalized on the same pair of oxygen atoms around a\nmissing Si atom but linked to a substitutional Al3+ ion each\nat different neighboring tetrahedral sites. Similarly, Centers\nG and G' are most likely superoxide radicals with the\nunpaired spin localized on another pair of oxygen atoms\naround a missing Si atom and linked to a substitutional\nAl3+ ion each at different neighboring tetrahedral sites.\nCenter C' is probably an ozonide radical associated with a\nmissing Si atom and linked to a substitutional Al3+ ion at\nthe neighboring tetrahedral site. This study exemplifies the\nvalue of high-frequency EPR for discrimination of similar\ndefect centers and determination of small local\nstructural distortions that are often difficult to resolve in\nconventional X- and Q-band EPR studies.","downloadable_attachments":[{"id":39546022,"asset_id":17503365,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":36907166,"first_name":"Rudolf","last_name":"Mashkovtsev","domain_name":"iggcas","page_name":"RudolfMashkovtsev","display_name":"Rudolf Mashkovtsev","profile_url":"https://iggcas.academia.edu/RudolfMashkovtsev?f_ri=21731","photo":"https://0.academia-photos.com/36907166/10528490/11749446/s65_rudolf.mashkovtsev.jpg"}],"research_interests":[{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true},{"id":37780,"name":"EPR 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of channel constituents in beryls synthesized hydrothermally in the presence of NH4Cl were investigated.</div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/17494216" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="402c60878e8e8a7f58d45f6c56bd07e2" rel="nofollow" data-download="{"attachment_id":39541255,"asset_id":17494216,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" 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investigated.","downloadable_attachments":[{"id":39541255,"asset_id":17494216,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":37414462,"first_name":"Vladimir","last_name":"Solntsev","domain_name":"independent","page_name":"VladimirSolntsev","display_name":"Vladimir Solntsev","profile_url":"https://independent.academia.edu/VladimirSolntsev?f_ri=21731","photo":"/images/s65_no_pic.png"},{"id":36907166,"first_name":"Rudolf","last_name":"Mashkovtsev","domain_name":"iggcas","page_name":"RudolfMashkovtsev","display_name":"Rudolf Mashkovtsev","profile_url":"https://iggcas.academia.edu/RudolfMashkovtsev?f_ri=21731","photo":"https://0.academia-photos.com/36907166/10528490/11749446/s65_rudolf.mashkovtsev.jpg"}],"research_interests":[{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true},{"id":37780,"name":"EPR 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class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Homo I from the site of Fontechevade, France, has long been an anomaly in the European fossil record. The specimen is a fragment of human frontal bone that lacks a supraorbital torus and appears to belong to an anatomically modern Homo... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_1465463" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Homo I from the site of Fontechevade, France, has long been an anomaly in the European fossil record. The specimen is a fragment of human frontal bone that lacks a supraorbital torus and appears to belong to an anatomically modern Homo sapiens. However, the level from which it was recovered in 1947 was dated on the basis of associated faunal and lithic material to the last interglacial or earlier. As a result, Homo I has been interpreted, among other things, as a representative of a pre-sapiens lineage in Europe. This paper reports on recent ESR and radiocarbon dates that indicate that the specimen almost certainly dates to oxygen isotope stage 3, which brings it in line with other evidence for the entry of modern Homo sapiens into Europe.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/1465463" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="b2dbd118b816041caabfaf4ad5e5a7ec" rel="nofollow" data-download="{"attachment_id":28908689,"asset_id":1465463,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/28908689/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="1252186" href="https://eva-mpg.academia.edu/ShannonMcPherron">Shannon McPherron</a><script data-card-contents-for-user="1252186" type="text/json">{"id":1252186,"first_name":"Shannon","last_name":"McPherron","domain_name":"eva-mpg","page_name":"ShannonMcPherron","display_name":"Shannon McPherron","profile_url":"https://eva-mpg.academia.edu/ShannonMcPherron?f_ri=21731","photo":"https://0.academia-photos.com/1252186/806179/1002932/s65_shannon.mcpherron.jpg"}</script></span></span></li><li class="js-paper-rank-work_1465463 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="1465463"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 1465463, container: ".js-paper-rank-work_1465463", }); 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The specimen is a fragment of human frontal bone that lacks a supraorbital torus and appears to belong to an anatomically modern Homo sapiens. However, the level from which it was recovered in 1947 was dated on the basis of associated faunal and lithic material to the last interglacial or earlier. As a result, Homo I has been interpreted, among other things, as a representative of a pre-sapiens lineage in Europe. This paper reports on recent ESR and radiocarbon dates that indicate that the specimen almost certainly dates to oxygen isotope stage 3, which brings it in line with other evidence for the entry of modern Homo sapiens into Europe.","downloadable_attachments":[{"id":28908689,"asset_id":1465463,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":1252186,"first_name":"Shannon","last_name":"McPherron","domain_name":"eva-mpg","page_name":"ShannonMcPherron","display_name":"Shannon McPherron","profile_url":"https://eva-mpg.academia.edu/ShannonMcPherron?f_ri=21731","photo":"https://0.academia-photos.com/1252186/806179/1002932/s65_shannon.mcpherron.jpg"}],"research_interests":[{"id":398,"name":"Paleoanthropology","url":"https://www.academia.edu/Documents/in/Paleoanthropology?f_ri=21731","nofollow":true},{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true},{"id":112668,"name":"Radiocarbon Dating (Archaeology)","url":"https://www.academia.edu/Documents/in/Radiocarbon_Dating_Archaeology_?f_ri=21731","nofollow":true}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_44449797" data-work_id="44449797" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/44449797/Kumyer_Mevkii_Arkeolojik_Seramiklerin_ESR_Analizi_ve_ESR_Ya%C5%9F_Tayinine_Uygunlu%C4%9Funun_Belirlenmesi_ESR_Analysis_of_Kumyer_Location_Archeological_Ceramics_and_Determination_of_Suitability_for_ESR_Dating">Kumyer Mevkii Arkeolojik Seramiklerin ESR Analizi ve ESR Yaş Tayinine Uygunluğunun Belirlenmesi ESR Analysis of Kumyer Location Archeological Ceramics and Determination of Suitability for ESR Dating</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">ÖZ Bu çalışmada Kumyer Mevkii arkeolojik seramik örneklerindeki kuvars minerallerinin yapısında bulunan radikaller Elektron Spin Rezonans (ESR) tekniği ile tespit edildi. ESR spektrumları Selçuk Üniversitesi İleri Teknoloji Araştırma ve... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_44449797" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">ÖZ Bu çalışmada Kumyer Mevkii arkeolojik seramik örneklerindeki kuvars minerallerinin yapısında bulunan radikaller Elektron Spin Rezonans (ESR) tekniği ile tespit edildi. ESR spektrumları Selçuk Üniversitesi İleri Teknoloji Araştırma ve Uygulama Merkezi' nde bulunan JEOL JESFA-300 X-band ESR spektrometresi ile farklı mikrodalga güçlerinde ve farklı sıcaklıklarda kaydedildi. Seramik örneklerindeki kuvars minerallerinde doğal ışınlama ile oluşan Al, Ti-Li, Ti-H ve Ge paramanyetik merkezleri olduğu belirlendi ve bu merkezlerin ESR parametreleri hesaplandı. Ayrıca, Kumyer Mevkii arkeolojik seramik örneklerinin ESR yaş tayini için uygun malzemeler olup olmadıklarını belirlemek üzere yapay olarak ışınlanmış örneklerin 300K ve 81K sıcaklığında kaydedilen ESR spektrumları analiz edildi. Laboratuvar ortamında ışınlanmış örnekler için eş süreli ısıtma deneyi yapılarak doğal örneklerde bulunan Al ve Ti merkezlerinin ısıl kararlılıkları belirlendi. Yapılan deneysel çalışmalar sonucunda Kumyer mevkii arkeolojik seramik örneklerindeki kilden elde edilen kuvars minerallerinin radyasyona duyarlı ve kararlı paramanyetik merkezler içerdiği ve bunun sonucunda bu örneklerin ESR tekniği ile tarihlendirilebileceği anlaşıldı. ABSTRACT In this study paramagnetic centers in quartz minerals of Kumyer Location archeological samples were identified using Electron Spin Resonance (ESR) technique. ESR spectra were recorded at different microwave powers and various spectrometer temperatures with JEOL JESFa-300 X-band ESR spectrometer located in Selcuk University Advanced Technology Research and Application Center (İLTEK). It was determined that there is Al, Ti-Li, Ti-H and Ge paramagnetic centers which were produced by natural radiation in quartz minerals of ceramic samples and ESR parameters of these centers were measured. In order to determine whereas Kumyer Location archeological ceramics are suitable samples for ESR dating, ESR spectra of artificial irradiated samples recorded at 300K and 81K temperature were analyzed. Thermal stability of Al and Ti centers were determined by isochronal annealing experiment of artificial irradiated samples. As a result of experimental studies, it was determined that quartz minerals of Kumyer location archeological ceramic samples have stable and radiation dependent paramagnetic centers thus, these samples can be used for ESR dating.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/44449797" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="43bc561a79c41fbbc27f1a958e268ef8" rel="nofollow" data-download="{"attachment_id":64871739,"asset_id":44449797,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/64871739/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="3226935" href="https://selcuk.academia.edu/%C4%B0lkerI%C5%9F%C4%B1k">İlker IŞIK</a><script data-card-contents-for-user="3226935" type="text/json">{"id":3226935,"first_name":"İlker","last_name":"IŞIK","domain_name":"selcuk","page_name":"İlkerIşık","display_name":"İlker IŞIK","profile_url":"https://selcuk.academia.edu/%C4%B0lkerI%C5%9F%C4%B1k?f_ri=21731","photo":"https://0.academia-photos.com/3226935/2751510/37144989/s65_i_lker.i_ik.jpg"}</script></span></span></li><li class="js-paper-rank-work_44449797 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="44449797"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 44449797, container: ".js-paper-rank-work_44449797", }); 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$(".js-view-count[data-work-id=44449797]").text(description); $(".js-view-count-work_44449797").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_44449797").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="44449797"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">4</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="12807" rel="nofollow" href="https://www.academia.edu/Documents/in/Archaeometry">Archaeometry</a>, <script data-card-contents-for-ri="12807" type="text/json">{"id":12807,"name":"Archaeometry","url":"https://www.academia.edu/Documents/in/Archaeometry?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="21731" rel="nofollow" href="https://www.academia.edu/Documents/in/EPR_ESR">EPR, ESR</a>, <script data-card-contents-for-ri="21731" type="text/json">{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="24827" rel="nofollow" href="https://www.academia.edu/Documents/in/Ceramics_Archaeology_">Ceramics (Archaeology)</a>, <script data-card-contents-for-ri="24827" type="text/json">{"id":24827,"name":"Ceramics (Archaeology)","url":"https://www.academia.edu/Documents/in/Ceramics_Archaeology_?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="110204" rel="nofollow" href="https://www.academia.edu/Documents/in/Dating">Dating</a><script data-card-contents-for-ri="110204" type="text/json">{"id":110204,"name":"Dating","url":"https://www.academia.edu/Documents/in/Dating?f_ri=21731","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=44449797]'), work: {"id":44449797,"title":"Kumyer Mevkii Arkeolojik Seramiklerin ESR Analizi ve ESR Yaş Tayinine Uygunluğunun Belirlenmesi ESR Analysis of Kumyer Location Archeological Ceramics and Determination of Suitability for ESR Dating","created_at":"2020-11-06T22:17:17.261-08:00","url":"https://www.academia.edu/44449797/Kumyer_Mevkii_Arkeolojik_Seramiklerin_ESR_Analizi_ve_ESR_Ya%C5%9F_Tayinine_Uygunlu%C4%9Funun_Belirlenmesi_ESR_Analysis_of_Kumyer_Location_Archeological_Ceramics_and_Determination_of_Suitability_for_ESR_Dating?f_ri=21731","dom_id":"work_44449797","summary":"ÖZ Bu çalışmada Kumyer Mevkii arkeolojik seramik örneklerindeki kuvars minerallerinin yapısında bulunan radikaller Elektron Spin Rezonans (ESR) tekniği ile tespit edildi. ESR spektrumları Selçuk Üniversitesi İleri Teknoloji Araştırma ve Uygulama Merkezi' nde bulunan JEOL JESFA-300 X-band ESR spektrometresi ile farklı mikrodalga güçlerinde ve farklı sıcaklıklarda kaydedildi. Seramik örneklerindeki kuvars minerallerinde doğal ışınlama ile oluşan Al, Ti-Li, Ti-H ve Ge paramanyetik merkezleri olduğu belirlendi ve bu merkezlerin ESR parametreleri hesaplandı. Ayrıca, Kumyer Mevkii arkeolojik seramik örneklerinin ESR yaş tayini için uygun malzemeler olup olmadıklarını belirlemek üzere yapay olarak ışınlanmış örneklerin 300K ve 81K sıcaklığında kaydedilen ESR spektrumları analiz edildi. Laboratuvar ortamında ışınlanmış örnekler için eş süreli ısıtma deneyi yapılarak doğal örneklerde bulunan Al ve Ti merkezlerinin ısıl kararlılıkları belirlendi. Yapılan deneysel çalışmalar sonucunda Kumyer mevkii arkeolojik seramik örneklerindeki kilden elde edilen kuvars minerallerinin radyasyona duyarlı ve kararlı paramanyetik merkezler içerdiği ve bunun sonucunda bu örneklerin ESR tekniği ile tarihlendirilebileceği anlaşıldı. ABSTRACT In this study paramagnetic centers in quartz minerals of Kumyer Location archeological samples were identified using Electron Spin Resonance (ESR) technique. ESR spectra were recorded at different microwave powers and various spectrometer temperatures with JEOL JESFa-300 X-band ESR spectrometer located in Selcuk University Advanced Technology Research and Application Center (İLTEK). It was determined that there is Al, Ti-Li, Ti-H and Ge paramagnetic centers which were produced by natural radiation in quartz minerals of ceramic samples and ESR parameters of these centers were measured. In order to determine whereas Kumyer Location archeological ceramics are suitable samples for ESR dating, ESR spectra of artificial irradiated samples recorded at 300K and 81K temperature were analyzed. Thermal stability of Al and Ti centers were determined by isochronal annealing experiment of artificial irradiated samples. As a result of experimental studies, it was determined that quartz minerals of Kumyer location archeological ceramic samples have stable and radiation dependent paramagnetic centers thus, these samples can be used for ESR dating.","downloadable_attachments":[{"id":64871739,"asset_id":44449797,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":3226935,"first_name":"İlker","last_name":"IŞIK","domain_name":"selcuk","page_name":"İlkerIşık","display_name":"İlker IŞIK","profile_url":"https://selcuk.academia.edu/%C4%B0lkerI%C5%9F%C4%B1k?f_ri=21731","photo":"https://0.academia-photos.com/3226935/2751510/37144989/s65_i_lker.i_ik.jpg"}],"research_interests":[{"id":12807,"name":"Archaeometry","url":"https://www.academia.edu/Documents/in/Archaeometry?f_ri=21731","nofollow":true},{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true},{"id":24827,"name":"Ceramics (Archaeology)","url":"https://www.academia.edu/Documents/in/Ceramics_Archaeology_?f_ri=21731","nofollow":true},{"id":110204,"name":"Dating","url":"https://www.academia.edu/Documents/in/Dating?f_ri=21731","nofollow":true}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_34863430" data-work_id="34863430" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/34863430/POLYPHENOLIC_PROFILE_AND_ANTIOXIDANT_AND_ANTIBACTERIAL_ACTIVITIES_FROM_TWO_TRIFOLIUM_SPECIES">POLYPHENOLIC PROFILE AND ANTIOXIDANT AND ANTIBACTERIAL ACTIVITIES FROM TWO TRIFOLIUM SPECIES</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">In the present study, flowers and leaves of Trifolium pratense and T. repens were screened for evaluating the polyphenolic contents and the antioxidant and antibacterial activities. A characterization of the main phenolic compounds was... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_34863430" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">In the present study, flowers and leaves of Trifolium pratense and T. repens were screened for evaluating the polyphenolic contents and the antioxidant and antibacterial activities. A characterization of the main phenolic compounds was carried out using HPLC-MS method. The total polyphenolic and flavonoid content was spectrophotometrically determined. Antioxidant activity was evaluated by using several methods: DPPH (2,2-diphenyl-1-picrylhydrazyl) assay, TEAC (Trolox equivalent antioxidant capacity), HAPX (haemoglobin ascorbate peroxidase activity inhibition) and EPR (electron paramagnetic resonance) method. The polyphenolic profile revealed the presence of common components as p-coumaric acid, ferulic acid, hyperoside, quercetin, luteolin, and other that make the differences (miricetol, quercitrin, isoquercitrin). T. pratense showed better antioxidant and antibacterial activity than T. repens. The quantitative and qualitative differences between the two species of Trifolium could be used as a potential taxonomic marker in order to distinguish the species. Rezumat În acest studiu, florile şi frunzele de Trifolium pratense și T. repens au fost analizate în vederea evaluării conținutului de polifenoli și activitățile antioxidante și antimicrobiene. Caracterizarea compușilor fenolici a fost realizată utilizând metoda HPLC-MS. Conținutul total de polifenoli și flavonoide a fost determinat spectrofotometric. Activitatea antioxidantă a fost evaluată prin utilizarea mai multor metode: DPPH (2,2-difenil-1-picrilhidrazil), TEAC (Trolox equivalent antioxidant capacity), HAPX (haemoglobin ascorbate peroxidase activity inhibition) și EPR (rezonanță electonică paramagnetică). Profilul polifenolic a relevat prezența unor componente comune: acizii p-cumaric, ferulic, hiperozida, quercetol, luteolina, precum și altele care fac diferențele între cele două specii: miricetol, quercitrina, izoquercitrina. T. pratense a prezentat activitate antioxidantă şi antibacteriană mai puternică decât T. repens. Diferențele cantitative și calitative între cele două specii de Trifolium ar putea fi folosite ca un marker taxonomic, în scopul identificării speciilor vegetale.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/34863430" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="0bdb4cf17fc6d632656c9f1cb4c707eb" rel="nofollow" data-download="{"attachment_id":54722366,"asset_id":34863430,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/54722366/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="14151765" href="https://ubbcluj.academia.edu/RaduSilaghiDumitrescu">Radu Silaghi-Dumitrescu</a><script data-card-contents-for-user="14151765" type="text/json">{"id":14151765,"first_name":"Radu","last_name":"Silaghi-Dumitrescu","domain_name":"ubbcluj","page_name":"RaduSilaghiDumitrescu","display_name":"Radu Silaghi-Dumitrescu","profile_url":"https://ubbcluj.academia.edu/RaduSilaghiDumitrescu?f_ri=21731","photo":"https://0.academia-photos.com/14151765/4439765/13194429/s65_radu.silaghi-dumitrescu.jpg"}</script></span></span></li><li class="js-paper-rank-work_34863430 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="34863430"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 34863430, container: ".js-paper-rank-work_34863430", }); 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A characterization of the main phenolic compounds was carried out using HPLC-MS method. The total polyphenolic and flavonoid content was spectrophotometrically determined. Antioxidant activity was evaluated by using several methods: DPPH (2,2-diphenyl-1-picrylhydrazyl) assay, TEAC (Trolox equivalent antioxidant capacity), HAPX (haemoglobin ascorbate peroxidase activity inhibition) and EPR (electron paramagnetic resonance) method. The polyphenolic profile revealed the presence of common components as p-coumaric acid, ferulic acid, hyperoside, quercetin, luteolin, and other that make the differences (miricetol, quercitrin, isoquercitrin). T. pratense showed better antioxidant and antibacterial activity than T. repens. The quantitative and qualitative differences between the two species of Trifolium could be used as a potential taxonomic marker in order to distinguish the species. Rezumat În acest studiu, florile şi frunzele de Trifolium pratense și T. repens au fost analizate în vederea evaluării conținutului de polifenoli și activitățile antioxidante și antimicrobiene. Caracterizarea compușilor fenolici a fost realizată utilizând metoda HPLC-MS. Conținutul total de polifenoli și flavonoide a fost determinat spectrofotometric. Activitatea antioxidantă a fost evaluată prin utilizarea mai multor metode: DPPH (2,2-difenil-1-picrilhidrazil), TEAC (Trolox equivalent antioxidant capacity), HAPX (haemoglobin ascorbate peroxidase activity inhibition) și EPR (rezonanță electonică paramagnetică). Profilul polifenolic a relevat prezența unor componente comune: acizii p-cumaric, ferulic, hiperozida, quercetol, luteolina, precum și altele care fac diferențele între cele două specii: miricetol, quercitrina, izoquercitrina. T. pratense a prezentat activitate antioxidantă şi antibacteriană mai puternică decât T. repens. Diferențele cantitative și calitative între cele două specii de Trifolium ar putea fi folosite ca un marker taxonomic, în scopul identificării speciilor vegetale.","downloadable_attachments":[{"id":54722366,"asset_id":34863430,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":14151765,"first_name":"Radu","last_name":"Silaghi-Dumitrescu","domain_name":"ubbcluj","page_name":"RaduSilaghiDumitrescu","display_name":"Radu Silaghi-Dumitrescu","profile_url":"https://ubbcluj.academia.edu/RaduSilaghiDumitrescu?f_ri=21731","photo":"https://0.academia-photos.com/14151765/4439765/13194429/s65_radu.silaghi-dumitrescu.jpg"}],"research_interests":[{"id":2425,"name":"Free Radicals","url":"https://www.academia.edu/Documents/in/Free_Radicals?f_ri=21731","nofollow":true},{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true},{"id":37780,"name":"EPR Spectroscopy","url":"https://www.academia.edu/Documents/in/EPR_Spectroscopy?f_ri=21731","nofollow":true},{"id":51711,"name":"Antioxidants","url":"https://www.academia.edu/Documents/in/Antioxidants?f_ri=21731","nofollow":true},{"id":178472,"name":"Hemoglobin","url":"https://www.academia.edu/Documents/in/Hemoglobin?f_ri=21731"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_31656702" data-work_id="31656702" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/31656702/EPR_Studies_of_the_Generation_Structure_and_Reactivity_of_N_Heterocyclic_Carbene_Borane_Radicals">EPR Studies of the Generation, Structure, and Reactivity of N-Heterocyclic Carbene Borane Radicals</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">N-Heterocyclic carbene boranes (NHC-boranes) are a new " clean " class of reagents suitable for reductive radical chain transformations. Their structures are well suited for their reactivity to be tuned by inclusion of different NHC ring... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_31656702" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">N-Heterocyclic carbene boranes (NHC-boranes) are a new " clean " class of reagents suitable for reductive radical chain transformations. Their structures are well suited for their reactivity to be tuned by inclusion of different NHC ring units and by appropriate placement of diverse substituents. EPR spectra were obtained for the boron-centered radicals generated on removal of one of the BH 3 hydrogen atoms. This spectroscopic data, coupled with DFT computations, demonstrated that the NHC-BH 2 • radicals are planar π-delocalized species. tert-Butoxyl radicals abstracted hydrogen atoms from NHC-boranes more than 3 orders of magnitude faster than did C-centered radicals, although the rate decreased markedly for sterically shielded NHC-BH 3 centers. Combinations of two NHC-boryl radicals afforded 1,2-bis-NHC-diboranes at rates which also depended strongly on steric shielding. The termination rate increased to the diffusion-controlled limit for sterically unhindered NHC-boryls. Bromine atoms were rapidly transferred to imidazole-based NHC-boryl radicals from alkyl, allyl, and benzyl bromides. Chlorine-atom abstraction was, however, much less efficient and only observed for sterically unhindered NHC-boryls reacting with allylic and benzylic chlorides. For an NHC-borane containing a bulky thexyl substituent at boron, the tertiary H atom of the thexyl group was selectively removed. The resulting-boron-containing alkyl radical rapidly underwent scission of the B-C bond with production of an NHC-boryl radical and an alkene.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/31656702" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="fc06740e3205ef991e0dc1a781c20e92" rel="nofollow" data-download="{"attachment_id":51980452,"asset_id":31656702,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/51980452/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="1637097" href="https://st-andrews.academia.edu/JohnCWalton">John C Walton</a><script data-card-contents-for-user="1637097" type="text/json">{"id":1637097,"first_name":"John C","last_name":"Walton","domain_name":"st-andrews","page_name":"JohnCWalton","display_name":"John C Walton","profile_url":"https://st-andrews.academia.edu/JohnCWalton?f_ri=21731","photo":"https://0.academia-photos.com/1637097/171866449/161863735/s65_john_c.walton.png"}</script></span></span></li><li class="js-paper-rank-work_31656702 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="31656702"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 31656702, container: ".js-paper-rank-work_31656702", }); 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$(".js-view-count[data-work-id=31656702]").text(description); $(".js-view-count-work_31656702").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_31656702").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="31656702"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">4</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="2425" rel="nofollow" href="https://www.academia.edu/Documents/in/Free_Radicals">Free Radicals</a>, <script data-card-contents-for-ri="2425" type="text/json">{"id":2425,"name":"Free Radicals","url":"https://www.academia.edu/Documents/in/Free_Radicals?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="11300" rel="nofollow" href="https://www.academia.edu/Documents/in/Boron_Chemistry">Boron Chemistry</a>, <script data-card-contents-for-ri="11300" type="text/json">{"id":11300,"name":"Boron Chemistry","url":"https://www.academia.edu/Documents/in/Boron_Chemistry?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="21731" rel="nofollow" href="https://www.academia.edu/Documents/in/EPR_ESR">EPR, ESR</a>, <script data-card-contents-for-ri="21731" type="text/json">{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="242857" rel="nofollow" href="https://www.academia.edu/Documents/in/Organic_reaction_mechanisms_and_kinetics">Organic reaction mechanisms and kinetics</a><script data-card-contents-for-ri="242857" type="text/json">{"id":242857,"name":"Organic reaction mechanisms and kinetics","url":"https://www.academia.edu/Documents/in/Organic_reaction_mechanisms_and_kinetics?f_ri=21731","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=31656702]'), work: {"id":31656702,"title":"EPR Studies of the Generation, Structure, and Reactivity of N-Heterocyclic Carbene Borane Radicals","created_at":"2017-03-01T01:24:30.684-08:00","url":"https://www.academia.edu/31656702/EPR_Studies_of_the_Generation_Structure_and_Reactivity_of_N_Heterocyclic_Carbene_Borane_Radicals?f_ri=21731","dom_id":"work_31656702","summary":"N-Heterocyclic carbene boranes (NHC-boranes) are a new \" clean \" class of reagents suitable for reductive radical chain transformations. Their structures are well suited for their reactivity to be tuned by inclusion of different NHC ring units and by appropriate placement of diverse substituents. EPR spectra were obtained for the boron-centered radicals generated on removal of one of the BH 3 hydrogen atoms. This spectroscopic data, coupled with DFT computations, demonstrated that the NHC-BH 2 • radicals are planar π-delocalized species. tert-Butoxyl radicals abstracted hydrogen atoms from NHC-boranes more than 3 orders of magnitude faster than did C-centered radicals, although the rate decreased markedly for sterically shielded NHC-BH 3 centers. Combinations of two NHC-boryl radicals afforded 1,2-bis-NHC-diboranes at rates which also depended strongly on steric shielding. The termination rate increased to the diffusion-controlled limit for sterically unhindered NHC-boryls. Bromine atoms were rapidly transferred to imidazole-based NHC-boryl radicals from alkyl, allyl, and benzyl bromides. Chlorine-atom abstraction was, however, much less efficient and only observed for sterically unhindered NHC-boryls reacting with allylic and benzylic chlorides. For an NHC-borane containing a bulky thexyl substituent at boron, the tertiary H atom of the thexyl group was selectively removed. The resulting-boron-containing alkyl radical rapidly underwent scission of the B-C bond with production of an NHC-boryl radical and an alkene.","downloadable_attachments":[{"id":51980452,"asset_id":31656702,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":1637097,"first_name":"John C","last_name":"Walton","domain_name":"st-andrews","page_name":"JohnCWalton","display_name":"John C Walton","profile_url":"https://st-andrews.academia.edu/JohnCWalton?f_ri=21731","photo":"https://0.academia-photos.com/1637097/171866449/161863735/s65_john_c.walton.png"}],"research_interests":[{"id":2425,"name":"Free Radicals","url":"https://www.academia.edu/Documents/in/Free_Radicals?f_ri=21731","nofollow":true},{"id":11300,"name":"Boron Chemistry","url":"https://www.academia.edu/Documents/in/Boron_Chemistry?f_ri=21731","nofollow":true},{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true},{"id":242857,"name":"Organic reaction mechanisms and kinetics","url":"https://www.academia.edu/Documents/in/Organic_reaction_mechanisms_and_kinetics?f_ri=21731","nofollow":true}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_29134743" data-work_id="29134743" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/29134743/Involvement_of_apoplastic_peroxidases_in_the_chitosaccharide_induced_immediate_oxidative_burst_and_cytosolic_Ca2_increase_in_tobacco_suspension_culture">Involvement of apoplastic peroxidases in the chitosaccharide-induced immediate oxidative burst and cytosolic Ca2+ increase in tobacco suspension culture.</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">We studied the effects of mono-, di-, tri-, and hexamers of glucosamine (GlcN) and N-acetylglucosamine (GlcNAc) on oxidative and calcium signals in transgenic tobacco suspension culture (Nicotiana tabacum L. cv. Bright Yellow-2, cell line... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_29134743" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">We studied the effects of mono-, di-, tri-, and hexamers of glucosamine (GlcN) and N-acetylglucosamine (GlcNAc) on oxidative and calcium signals in transgenic tobacco suspension culture (Nicotiana tabacum L. cv. Bright Yellow-2, cell line CST-1) expressing aequorin. Addition of (GlcN)n to the cells induced an immediate oxidative burst monitored by superoxide-specific chemiluminescence of CLA (CLA-CL). The superoxide generated by (GlcN)n was converted to hydrogen peroxide, causing a transient increase in cytosolic Ca2+ concentration ([Ca2+]c) which was monitored by ([Ca2+]c-dependent luminescence of aequorin. The longer the polymer of (GlcN)n the greater the effect. The (GlcN)n-dependent CLA-CL in the culture was inhibited by a peroxidase inhibitor, but not by a NADPH oxidase inhibitor. The (GlcN)n-dependent CLA-CL was also observed in the extracellularly excreted peroxidase preparation and also in horseradish peroxidase reaction mixture. We have previously obtained similar results using salicylic acid and aromatic amines. Addition of (GlcNAc)n also resulted in an elevation of [Ca2+]c. No superoxide generation preseding [Ca2+]c elevation was detected using CLA, but gradual accumulation of superoxide signal was detected with electron spin resonance spectroscopy using Tiron as a spin trapper. No effect of GlcNAc monomer and oligomers shorter than hexamer on [Ca2+]c elevation or superoxide generation was observed.<br />In various plants, generation of reactive oxygen species (ROS) is one of the important early events in the active defense against pathogens. ROS can be induced by pathogen invation or treatment with elicitors....</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/29134743" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="9fc51aa6085e877e0487355380b86686" rel="nofollow" data-download="{"attachment_id":49580414,"asset_id":29134743,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/49580414/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="42266429" href="https://kitakyu-u.academia.edu/TomonoriKawano">Tomonori Kawano</a><script data-card-contents-for-user="42266429" type="text/json">{"id":42266429,"first_name":"Tomonori","last_name":"Kawano","domain_name":"kitakyu-u","page_name":"TomonoriKawano","display_name":"Tomonori Kawano","profile_url":"https://kitakyu-u.academia.edu/TomonoriKawano?f_ri=21731","photo":"https://0.academia-photos.com/42266429/11411154/15409292/s65_tomonori.kawano.png"}</script></span></span></li><li class="js-paper-rank-work_29134743 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="29134743"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 29134743, container: ".js-paper-rank-work_29134743", }); 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Bright Yellow-2, cell line CST-1) expressing aequorin. Addition of (GlcN)n to the cells induced an immediate oxidative burst monitored by superoxide-specific chemiluminescence of CLA (CLA-CL). The superoxide generated by (GlcN)n was converted to hydrogen peroxide, causing a transient increase in cytosolic Ca2+ concentration ([Ca2+]c) which was monitored by ([Ca2+]c-dependent luminescence of aequorin. The longer the polymer of (GlcN)n the greater the effect. The (GlcN)n-dependent CLA-CL in the culture was inhibited by a peroxidase inhibitor, but not by a NADPH oxidase inhibitor. The (GlcN)n-dependent CLA-CL was also observed in the extracellularly excreted peroxidase preparation and also in horseradish peroxidase reaction mixture. We have previously obtained similar results using salicylic acid and aromatic amines. Addition of (GlcNAc)n also resulted in an elevation of [Ca2+]c. No superoxide generation preseding [Ca2+]c elevation was detected using CLA, but gradual accumulation of superoxide signal was detected with electron spin resonance spectroscopy using Tiron as a spin trapper. No effect of GlcNAc monomer and oligomers shorter than hexamer on [Ca2+]c elevation or superoxide generation was observed.\nIn various plants, generation of reactive oxygen species (ROS) is one of the important early events in the active defense against pathogens. ROS can be induced by pathogen invation or treatment with elicitors....","downloadable_attachments":[{"id":49580414,"asset_id":29134743,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":42266429,"first_name":"Tomonori","last_name":"Kawano","domain_name":"kitakyu-u","page_name":"TomonoriKawano","display_name":"Tomonori Kawano","profile_url":"https://kitakyu-u.academia.edu/TomonoriKawano?f_ri=21731","photo":"https://0.academia-photos.com/42266429/11411154/15409292/s65_tomonori.kawano.png"}],"research_interests":[{"id":59,"name":"Polymer Engineering","url":"https://www.academia.edu/Documents/in/Polymer_Engineering?f_ri=21731","nofollow":true},{"id":66,"name":"Agricultural Engineering","url":"https://www.academia.edu/Documents/in/Agricultural_Engineering?f_ri=21731","nofollow":true},{"id":69,"name":"Biomaterials Engineering","url":"https://www.academia.edu/Documents/in/Biomaterials_Engineering?f_ri=21731","nofollow":true},{"id":72,"name":"Chemical 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u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/17509763/Valent_state_and_coordination_of_cobalt_Ions_in_beryl_and_chrysoberyl_crystals">Valent state and coordination of cobalt Ions in beryl and chrysoberyl crystals</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">We have studied the polarized optical absorption and EPR spectra of Co-doped beryls grown by hydrothermal, flux, and gas-transport methods, and chrysoberyl grown by the Czochralski method. In beryls three groups of bands, belonging to... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_17509763" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">We have studied the polarized optical<br />absorption and EPR spectra of Co-doped beryls grown<br />by hydrothermal, flux, and gas-transport methods, and<br />chrysoberyl grown by the Czochralski method. In<br />beryls three groups of bands, belonging to three various<br />Co centers, were distinguished by analysis of the<br />absorption band intensities. The first group, bands<br />with maxima at 22 220 (E ? c), 17 730 (E k c), and<br />9090 (E k c), 7520 (E ? c) cm)1 are due to Co2+ in<br />octahedral site of Al3+. The second group is bands at<br />18 940, 18 250, 17 700 (E ? c), 18 300, 17 700, 17 000<br />(E k c) and 8830 (E ? c), 7350 (E k c) cm-1 and 5320<br />(E ? c), 3880 (E k c) cm)1, which are caused by Co2+<br />in tetrahedral site of Be2+. A weak wide band in flux<br />and gas-transport beryl in the region of 12 500–<br />8300 cm-1 (E k, ? c) is related to Co3+ in octahedral<br />Al3+ site. In hydrothermal beryl, bands 13 200<br />(E ? c), 10 900 (E k c), and 8500 (E ? c) cm)1 are<br />caused by an uncontrolled impurity of Cu2+ ions. For<br />Co-doped chrysoberyl one type of center of Co has<br />been established: Co2+ in the octahedral site of Al3+.<br />In the approximation of the trigonal field with regard<br />to Trees’ correction, the energy levels of Co2+ have<br />been calculated in octahedral and tetrahedral coordination.<br />There is good agreement between the obtained<br />experimental and calculated data. The polarization<br />dependence of the optical absorption bands is<br />explained well in terms of the spin-orbit interaction.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/17509763" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="1e75d5956087d662df8a8b889ef178d6" rel="nofollow" data-download="{"attachment_id":39549420,"asset_id":17509763,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/39549420/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="36907166" href="https://iggcas.academia.edu/RudolfMashkovtsev">Rudolf Mashkovtsev</a><script data-card-contents-for-user="36907166" type="text/json">{"id":36907166,"first_name":"Rudolf","last_name":"Mashkovtsev","domain_name":"iggcas","page_name":"RudolfMashkovtsev","display_name":"Rudolf Mashkovtsev","profile_url":"https://iggcas.academia.edu/RudolfMashkovtsev?f_ri=21731","photo":"https://0.academia-photos.com/36907166/10528490/11749446/s65_rudolf.mashkovtsev.jpg"}</script></span></span><span class="u-displayInlineBlock InlineList-item-text"> and <span class="u-textDecorationUnderline u-clickable InlineList-item-text js-work-more-authors-17509763">+1</span><div class="hidden js-additional-users-17509763"><div><span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a href="https://independent.academia.edu/VladimirSolntsev">Vladimir Solntsev</a></span></div></div></span><script>(function(){ var popoverSettings = { el: $('.js-work-more-authors-17509763'), placement: 'bottom', hide_delay: 200, html: true, content: function(){ return $('.js-additional-users-17509763').html(); 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In\nberyls three groups of bands, belonging to three various\nCo centers, were distinguished by analysis of the\nabsorption band intensities. The first group, bands\nwith maxima at 22 220 (E ? c), 17 730 (E k c), and\n9090 (E k c), 7520 (E ? c) cm)1 are due to Co2+ in\noctahedral site of Al3+. The second group is bands at\n18 940, 18 250, 17 700 (E ? c), 18 300, 17 700, 17 000\n(E k c) and 8830 (E ? c), 7350 (E k c) cm-1 and 5320\n(E ? c), 3880 (E k c) cm)1, which are caused by Co2+\nin tetrahedral site of Be2+. A weak wide band in flux\nand gas-transport beryl in the region of 12 500–\n8300 cm-1 (E k, ? c) is related to Co3+ in octahedral\nAl3+ site. In hydrothermal beryl, bands 13 200\n(E ? c), 10 900 (E k c), and 8500 (E ? c) cm)1 are\ncaused by an uncontrolled impurity of Cu2+ ions. For\nCo-doped chrysoberyl one type of center of Co has\nbeen established: Co2+ in the octahedral site of Al3+.\nIn the approximation of the trigonal field with regard\nto Trees’ correction, the energy levels of Co2+ have\nbeen calculated in octahedral and tetrahedral coordination.\nThere is good agreement between the obtained\nexperimental and calculated data. The polarization\ndependence of the optical absorption bands is\nexplained well in terms of the spin-orbit interaction.","downloadable_attachments":[{"id":39549420,"asset_id":17509763,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":36907166,"first_name":"Rudolf","last_name":"Mashkovtsev","domain_name":"iggcas","page_name":"RudolfMashkovtsev","display_name":"Rudolf Mashkovtsev","profile_url":"https://iggcas.academia.edu/RudolfMashkovtsev?f_ri=21731","photo":"https://0.academia-photos.com/36907166/10528490/11749446/s65_rudolf.mashkovtsev.jpg"},{"id":37414462,"first_name":"Vladimir","last_name":"Solntsev","domain_name":"independent","page_name":"VladimirSolntsev","display_name":"Vladimir Solntsev","profile_url":"https://independent.academia.edu/VladimirSolntsev?f_ri=21731","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":4120,"name":"Crystal Growth","url":"https://www.academia.edu/Documents/in/Crystal_Growth?f_ri=21731","nofollow":true},{"id":13033,"name":"Optical Spectroscopy","url":"https://www.academia.edu/Documents/in/Optical_Spectroscopy?f_ri=21731","nofollow":true},{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true},{"id":1774715,"name":"Beryl","url":"https://www.academia.edu/Documents/in/Beryl?f_ri=21731","nofollow":true}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_14325748" data-work_id="14325748" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/14325748/Optically_Generated_Spin_Hyperpolarization_in_Solution">Optically Generated Spin Hyperpolarization in Solution</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">We present a novel route to nuclear spin-hyperpolarization in the liquid-state using optically generated triplet states to hyperpolarize stable radicals. By using hyperpolarized electrons this approach has the potential for nuclear... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_14325748" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">We present a novel route to nuclear spin-hyperpolarization in the liquid-state using optically generated triplet states to hyperpolarize stable radicals. By using hyperpolarized electrons this approach has the potential for nuclear polarization enhancements far in excess of those possible with thermal equilibrium electron spins. While previously reported optically pumped DNP methods have operated in the solid-state, 1,2</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/14325748" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="5cfb7456260975a7721b203d298f170d" rel="nofollow" data-download="{"attachment_id":38268260,"asset_id":14325748,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/38268260/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="59830" href="https://rodiservices.academia.edu/ChrisWedge">Chris Wedge</a><script data-card-contents-for-user="59830" type="text/json">{"id":59830,"first_name":"Chris","last_name":"Wedge","domain_name":"rodiservices","page_name":"ChrisWedge","display_name":"Chris Wedge","profile_url":"https://rodiservices.academia.edu/ChrisWedge?f_ri=21731","photo":"https://0.academia-photos.com/59830/84110/91997/s65_chris.wedge.jpg"}</script></span></span></li><li class="js-paper-rank-work_14325748 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="14325748"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 14325748, container: ".js-paper-rank-work_14325748", }); });</script></li><li class="js-percentile-work_14325748 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 14325748; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_14325748"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_14325748 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="14325748"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 14325748; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=14325748]").text(description); $(".js-view-count-work_14325748").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_14325748").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="14325748"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">4</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="21731" rel="nofollow" href="https://www.academia.edu/Documents/in/EPR_ESR">EPR, ESR</a>, <script data-card-contents-for-ri="21731" type="text/json">{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="33739" rel="nofollow" href="https://www.academia.edu/Documents/in/Dynamic_Nuclear_Polarization">Dynamic Nuclear Polarization</a>, <script data-card-contents-for-ri="33739" type="text/json">{"id":33739,"name":"Dynamic Nuclear Polarization","url":"https://www.academia.edu/Documents/in/Dynamic_Nuclear_Polarization?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="37780" rel="nofollow" href="https://www.academia.edu/Documents/in/EPR_Spectroscopy">EPR Spectroscopy</a>, <script data-card-contents-for-ri="37780" type="text/json">{"id":37780,"name":"EPR Spectroscopy","url":"https://www.academia.edu/Documents/in/EPR_Spectroscopy?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="2008748" rel="nofollow" href="https://www.academia.edu/Documents/in/Chemically_Induced_Dynamic_Electron_Polarization">Chemically Induced Dynamic Electron Polarization</a><script data-card-contents-for-ri="2008748" type="text/json">{"id":2008748,"name":"Chemically Induced Dynamic Electron Polarization","url":"https://www.academia.edu/Documents/in/Chemically_Induced_Dynamic_Electron_Polarization?f_ri=21731","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=14325748]'), work: {"id":14325748,"title":"Optically Generated Spin Hyperpolarization in Solution","created_at":"2015-07-23T02:40:51.656-07:00","url":"https://www.academia.edu/14325748/Optically_Generated_Spin_Hyperpolarization_in_Solution?f_ri=21731","dom_id":"work_14325748","summary":"We present a novel route to nuclear spin-hyperpolarization in the liquid-state using optically generated triplet states to hyperpolarize stable radicals. By using hyperpolarized electrons this approach has the potential for nuclear polarization enhancements far in excess of those possible with thermal equilibrium electron spins. While previously reported optically pumped DNP methods have operated in the solid-state, 1,2","downloadable_attachments":[{"id":38268260,"asset_id":14325748,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":59830,"first_name":"Chris","last_name":"Wedge","domain_name":"rodiservices","page_name":"ChrisWedge","display_name":"Chris Wedge","profile_url":"https://rodiservices.academia.edu/ChrisWedge?f_ri=21731","photo":"https://0.academia-photos.com/59830/84110/91997/s65_chris.wedge.jpg"}],"research_interests":[{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true},{"id":33739,"name":"Dynamic Nuclear Polarization","url":"https://www.academia.edu/Documents/in/Dynamic_Nuclear_Polarization?f_ri=21731","nofollow":true},{"id":37780,"name":"EPR Spectroscopy","url":"https://www.academia.edu/Documents/in/EPR_Spectroscopy?f_ri=21731","nofollow":true},{"id":2008748,"name":"Chemically Induced Dynamic Electron Polarization","url":"https://www.academia.edu/Documents/in/Chemically_Induced_Dynamic_Electron_Polarization?f_ri=21731","nofollow":true}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_12809251" data-work_id="12809251" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/12809251/Glasses_in_the_system_K2O_TiO2_P2O5_close_to_KTiOPO4_composition_Part_1_Glass_forming_ability">Glasses in the system K2O–TiO2–P2O5 close to KTiOPO4 composition. Part 1: Glass forming ability</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">The glass forming ability in the system K2O–P2O5–TiO2 near the KTiOPO4 (KTP) stoichiometry was examined in order to obtain glass compositions that are suited for the nanoscale crystallization of KTP. The high crystallization tendency of... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_12809251" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">The glass forming ability in the system K2O–P2O5–TiO2 near the KTiOPO4 (KTP) stoichiometry was examined in order to obtain glass compositions that are suited for the nanoscale crystallization of KTP. The high crystallization tendency of melts close to the KTP composition was diminished by the introduction of up to 10 mol% SiO2 and/or up to 20 mol% P2O5 into the batch. ESCA measurements were used to analyse the influence of the melting conditions on the composition of the glassy samples. EPR spectra and UV-vis spectra served to study the Ti3+-content of the glasses. It was found, that the undesirable brown-violet colour of the glasses is lightened by annealing below the crystallization temperature or by the incorporation of Sb2O5.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/12809251" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="f3ca9c2cbb39166e538be7b7cbb90eed" rel="nofollow" data-download="{"attachment_id":37832636,"asset_id":12809251,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/37832636/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="31857812" href="https://uni-dortmund.academia.edu/J%C3%B6rgErdsack">Jörg Erdsack</a><script data-card-contents-for-user="31857812" type="text/json">{"id":31857812,"first_name":"Jörg","last_name":"Erdsack","domain_name":"uni-dortmund","page_name":"JörgErdsack","display_name":"Jörg Erdsack","profile_url":"https://uni-dortmund.academia.edu/J%C3%B6rgErdsack?f_ri=21731","photo":"/images/s65_no_pic.png"}</script></span></span></li><li class="js-paper-rank-work_12809251 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="12809251"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 12809251, container: ".js-paper-rank-work_12809251", }); 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$(".js-view-count[data-work-id=12809251]").text(description); $(".js-view-count-work_12809251").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_12809251").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="12809251"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">4</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="21731" rel="nofollow" href="https://www.academia.edu/Documents/in/EPR_ESR">EPR, ESR</a>, <script data-card-contents-for-ri="21731" type="text/json">{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="97416" rel="nofollow" href="https://www.academia.edu/Documents/in/Glasses">Glasses</a>, <script data-card-contents-for-ri="97416" type="text/json">{"id":97416,"name":"Glasses","url":"https://www.academia.edu/Documents/in/Glasses?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="168481" rel="nofollow" href="https://www.academia.edu/Documents/in/UV_Vis_spectroscopy">UV/Vis spectroscopy</a>, <script data-card-contents-for-ri="168481" type="text/json">{"id":168481,"name":"UV/Vis spectroscopy","url":"https://www.academia.edu/Documents/in/UV_Vis_spectroscopy?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="1954290" rel="nofollow" href="https://www.academia.edu/Documents/in/KTP_crystals">KTP crystals</a><script data-card-contents-for-ri="1954290" type="text/json">{"id":1954290,"name":"KTP crystals","url":"https://www.academia.edu/Documents/in/KTP_crystals?f_ri=21731","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=12809251]'), work: {"id":12809251,"title":"Glasses in the system K2O–TiO2–P2O5 close to KTiOPO4 composition. Part 1: Glass forming ability","created_at":"2015-06-05T02:00:47.979-07:00","url":"https://www.academia.edu/12809251/Glasses_in_the_system_K2O_TiO2_P2O5_close_to_KTiOPO4_composition_Part_1_Glass_forming_ability?f_ri=21731","dom_id":"work_12809251","summary":"The glass forming ability in the system K2O–P2O5–TiO2 near the KTiOPO4 (KTP) stoichiometry was examined in order to obtain glass compositions that are suited for the nanoscale crystallization of KTP. The high crystallization tendency of melts close to the KTP composition was diminished by the introduction of up to 10 mol% SiO2 and/or up to 20 mol% P2O5 into the batch. ESCA measurements were used to analyse the influence of the melting conditions on the composition of the glassy samples. EPR spectra and UV-vis spectra served to study the Ti3+-content of the glasses. It was found, that the undesirable brown-violet colour of the glasses is lightened by annealing below the crystallization temperature or by the incorporation of Sb2O5.","downloadable_attachments":[{"id":37832636,"asset_id":12809251,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":31857812,"first_name":"Jörg","last_name":"Erdsack","domain_name":"uni-dortmund","page_name":"JörgErdsack","display_name":"Jörg Erdsack","profile_url":"https://uni-dortmund.academia.edu/J%C3%B6rgErdsack?f_ri=21731","photo":"/images/s65_no_pic.png"}],"research_interests":[{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true},{"id":97416,"name":"Glasses","url":"https://www.academia.edu/Documents/in/Glasses?f_ri=21731","nofollow":true},{"id":168481,"name":"UV/Vis spectroscopy","url":"https://www.academia.edu/Documents/in/UV_Vis_spectroscopy?f_ri=21731","nofollow":true},{"id":1954290,"name":"KTP crystals","url":"https://www.academia.edu/Documents/in/KTP_crystals?f_ri=21731","nofollow":true}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_7033460" data-work_id="7033460" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/7033460/Characterization_of_Electron_Spin_Exchange_Interactions_in_Cellulose_Chars_by_Means_of_ESR_1H_NMR_and_Dynamic_Nuclear_Polarization">Characterization of Electron Spin Exchange Interactions in Cellulose Chars by Means of ESR, 1H NMR, and Dynamic Nuclear Polarization</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">Cellulose chars heat treated under nitrogen atmosphere for six hours over a range of heating temperatures from 250 to 1000·C were studied by ESR, broadline 'H NMR, and Dynamic Nuclear Polarization (DNP). Chars heated below 450T exhibited... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_7033460" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">Cellulose chars heat treated under nitrogen atmosphere for six hours over a range of heating temperatures from 250 to 1000·C were studied by ESR, broadline 'H NMR, and Dynamic Nuclear Polarization (DNP). Chars heated below 450T exhibited DNP enhancements predominantly due to the solid state effect resulting from static electron-nuclear spinspin interactions, while chars heated at higher temperatures exhibited Overhauser enhancements, which result from time dependent interactions. It was found that, while the maximum number of unpaired electrons was obtained at a heating temperature of 700T, the maximum Zeeman and rotating-frame 'H relaxation rates were achieved at much lower temperatures. Moreover, small Overhauser enhancements were observed even at the lower heating temperatures, where the time dependent electron-nuclear interactions are expected to be minimal, and the solid state enhancements decrease more rapidly than expected for samples heated above 350T. These effects are explained in terms of a distribution of rates of electron-electron spinexchange interactions. The charred and carbonized cellulose samples provided a set of solids in which the number of unpaired electrons varied over a large range and exhibited a broad distribution of spin-exchange rates. It was shown that DNP-NMR is a powerful method for probing this distribution, and for detecting small fractions of rapidly exchanging and static electrons.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/7033460" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="d3a1fcc3d254b9a8f70f5993db2d8910" rel="nofollow" data-download="{"attachment_id":33689492,"asset_id":7033460,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/33689492/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="3608026" href="https://independent.academia.edu/JanWooten1">Jan Wooten</a><script data-card-contents-for-user="3608026" type="text/json">{"id":3608026,"first_name":"Jan","last_name":"Wooten","domain_name":"independent","page_name":"JanWooten1","display_name":"Jan Wooten","profile_url":"https://independent.academia.edu/JanWooten1?f_ri=21731","photo":"https://0.academia-photos.com/3608026/1259988/1570835/s65_jan.wooten.jpg"}</script></span></span></li><li class="js-paper-rank-work_7033460 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="7033460"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 7033460, container: ".js-paper-rank-work_7033460", }); });</script></li><li class="js-percentile-work_7033460 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 7033460; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_7033460"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_7033460 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="7033460"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 7033460; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=7033460]").text(description); $(".js-view-count-work_7033460").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_7033460").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="7033460"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">8</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="5411" rel="nofollow" href="https://www.academia.edu/Documents/in/Biomass">Biomass</a>, <script data-card-contents-for-ri="5411" type="text/json">{"id":5411,"name":"Biomass","url":"https://www.academia.edu/Documents/in/Biomass?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="12134" rel="nofollow" href="https://www.academia.edu/Documents/in/NMR_Spectroscopy">NMR Spectroscopy</a>, <script data-card-contents-for-ri="12134" type="text/json">{"id":12134,"name":"NMR Spectroscopy","url":"https://www.academia.edu/Documents/in/NMR_Spectroscopy?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="14136" rel="nofollow" href="https://www.academia.edu/Documents/in/Pyrolysis">Pyrolysis</a>, <script data-card-contents-for-ri="14136" type="text/json">{"id":14136,"name":"Pyrolysis","url":"https://www.academia.edu/Documents/in/Pyrolysis?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="21731" rel="nofollow" href="https://www.academia.edu/Documents/in/EPR_ESR">EPR, ESR</a><script data-card-contents-for-ri="21731" type="text/json">{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=7033460]'), work: {"id":7033460,"title":"Characterization of Electron Spin Exchange Interactions in Cellulose Chars by Means of ESR, 1H NMR, and Dynamic Nuclear Polarization","created_at":"2014-05-13T04:30:26.255-07:00","url":"https://www.academia.edu/7033460/Characterization_of_Electron_Spin_Exchange_Interactions_in_Cellulose_Chars_by_Means_of_ESR_1H_NMR_and_Dynamic_Nuclear_Polarization?f_ri=21731","dom_id":"work_7033460","summary":"Cellulose chars heat treated under nitrogen atmosphere for six hours over a range of heating temperatures from 250 to 1000·C were studied by ESR, broadline 'H NMR, and Dynamic Nuclear Polarization (DNP). Chars heated below 450T exhibited DNP enhancements predominantly due to the solid state effect resulting from static electron-nuclear spinspin interactions, while chars heated at higher temperatures exhibited Overhauser enhancements, which result from time dependent interactions. It was found that, while the maximum number of unpaired electrons was obtained at a heating temperature of 700T, the maximum Zeeman and rotating-frame 'H relaxation rates were achieved at much lower temperatures. Moreover, small Overhauser enhancements were observed even at the lower heating temperatures, where the time dependent electron-nuclear interactions are expected to be minimal, and the solid state enhancements decrease more rapidly than expected for samples heated above 350T. These effects are explained in terms of a distribution of rates of electron-electron spinexchange interactions. The charred and carbonized cellulose samples provided a set of solids in which the number of unpaired electrons varied over a large range and exhibited a broad distribution of spin-exchange rates. It was shown that DNP-NMR is a powerful method for probing this distribution, and for detecting small fractions of rapidly exchanging and static electrons.","downloadable_attachments":[{"id":33689492,"asset_id":7033460,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":3608026,"first_name":"Jan","last_name":"Wooten","domain_name":"independent","page_name":"JanWooten1","display_name":"Jan Wooten","profile_url":"https://independent.academia.edu/JanWooten1?f_ri=21731","photo":"https://0.academia-photos.com/3608026/1259988/1570835/s65_jan.wooten.jpg"}],"research_interests":[{"id":5411,"name":"Biomass","url":"https://www.academia.edu/Documents/in/Biomass?f_ri=21731","nofollow":true},{"id":12134,"name":"NMR Spectroscopy","url":"https://www.academia.edu/Documents/in/NMR_Spectroscopy?f_ri=21731","nofollow":true},{"id":14136,"name":"Pyrolysis","url":"https://www.academia.edu/Documents/in/Pyrolysis?f_ri=21731","nofollow":true},{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true},{"id":25987,"name":"Solid State NMR","url":"https://www.academia.edu/Documents/in/Solid_State_NMR?f_ri=21731"},{"id":37959,"name":"Cellulose","url":"https://www.academia.edu/Documents/in/Cellulose?f_ri=21731"},{"id":107450,"name":"DNP","url":"https://www.academia.edu/Documents/in/DNP?f_ri=21731"},{"id":331200,"name":"Biomass Pyrolysis, Biochar, Activated Carbon","url":"https://www.academia.edu/Documents/in/Biomass_Pyrolysis_Biochar_Activated_Carbon?f_ri=21731"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_3891683" data-work_id="3891683" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/3891683/Final_ReadingALKALI_GLASSES">Final ReadingALKALI GLASSES</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">EPR and DSC studies were carried out on MgO-R 2 O-B 2 O 3 -V 2 O 5 glasses. The electron paramagnetic resonance spectra of V 4+ ion in the ternary glass system xMgO-(30 − x)R 2 O-70B 2 O 3 (R = Li, Na, K) were recorded at X-band... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_3891683" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">EPR and DSC studies were carried out on MgO-R 2 O-B 2 O 3 -V 2 O 5 glasses. The electron paramagnetic resonance spectra of V 4+ ion in the ternary glass system xMgO-(30 − x)R 2 O-70B 2 O 3 (R = Li, Na, K) were recorded at X-band frequencies at 303 K. The V 4+ ions in the present glass system exists as VO 2+ ions in octahedral coordination with tetragonal compression. The site symmetry of vanadyl is C 4v and the ground state of 3d 1 ion is dxy. Tetragonality (∆g /∆g ⊥ ) of V 4+ ion sites show a nonlinear variation with MgO content in the glasses. The covalency rates indicate moderate covalency for σ and π-bonds. The optical basicity values were also reported. Glass transition temperatures (Tg ) of the glasses were found to increase linearly with increasing MgO content.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/3891683" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="166a16f9ad8630e90296d8808966064c" rel="nofollow" data-download="{"attachment_id":31515980,"asset_id":3891683,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/31515980/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="4524212" href="https://vce.academia.edu/GokarakondaRamadevudu">Gokarakonda Ramadevudu</a><script data-card-contents-for-user="4524212" type="text/json">{"id":4524212,"first_name":"Gokarakonda","last_name":"Ramadevudu","domain_name":"vce","page_name":"GokarakondaRamadevudu","display_name":"Gokarakonda Ramadevudu","profile_url":"https://vce.academia.edu/GokarakondaRamadevudu?f_ri=21731","photo":"https://0.academia-photos.com/4524212/1867707/2217940/s65_gokarakonda.ramadevudu.jpg"}</script></span></span></li><li class="js-paper-rank-work_3891683 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="3891683"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 3891683, container: ".js-paper-rank-work_3891683", }); });</script></li><li class="js-percentile-work_3891683 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 3891683; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_3891683"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_3891683 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="3891683"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 3891683; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=3891683]").text(description); $(".js-view-count-work_3891683").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_3891683").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="3891683"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">21</a>  </div><span class="InlineList-item-text u-textTruncate u-pl10x"><a class="InlineList-item-text" data-has-card-for-ri="498" rel="nofollow" href="https://www.academia.edu/Documents/in/Physics">Physics</a>, <script data-card-contents-for-ri="498" type="text/json">{"id":498,"name":"Physics","url":"https://www.academia.edu/Documents/in/Physics?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="511" rel="nofollow" href="https://www.academia.edu/Documents/in/Materials_Science">Materials Science</a>, <script data-card-contents-for-ri="511" type="text/json">{"id":511,"name":"Materials Science","url":"https://www.academia.edu/Documents/in/Materials_Science?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="523" rel="nofollow" href="https://www.academia.edu/Documents/in/Chemistry">Chemistry</a>, <script data-card-contents-for-ri="523" type="text/json">{"id":523,"name":"Chemistry","url":"https://www.academia.edu/Documents/in/Chemistry?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="530" rel="nofollow" href="https://www.academia.edu/Documents/in/Inorganic_Chemistry">Inorganic Chemistry</a><script data-card-contents-for-ri="530" type="text/json">{"id":530,"name":"Inorganic Chemistry","url":"https://www.academia.edu/Documents/in/Inorganic_Chemistry?f_ri=21731","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=3891683]'), work: {"id":3891683,"title":"Final ReadingALKALI GLASSES","created_at":"2013-07-08T00:34:24.417-07:00","url":"https://www.academia.edu/3891683/Final_ReadingALKALI_GLASSES?f_ri=21731","dom_id":"work_3891683","summary":"EPR and DSC studies were carried out on MgO-R 2 O-B 2 O 3 -V 2 O 5 glasses. The electron paramagnetic resonance spectra of V 4+ ion in the ternary glass system xMgO-(30 − x)R 2 O-70B 2 O 3 (R = Li, Na, K) were recorded at X-band frequencies at 303 K. The V 4+ ions in the present glass system exists as VO 2+ ions in octahedral coordination with tetragonal compression. The site symmetry of vanadyl is C 4v and the ground state of 3d 1 ion is dxy. Tetragonality (∆g /∆g ⊥ ) of V 4+ ion sites show a nonlinear variation with MgO content in the glasses. The covalency rates indicate moderate covalency for σ and π-bonds. The optical basicity values were also reported. Glass transition temperatures (Tg ) of the glasses were found to increase linearly with increasing MgO content.","downloadable_attachments":[{"id":31515980,"asset_id":3891683,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":4524212,"first_name":"Gokarakonda","last_name":"Ramadevudu","domain_name":"vce","page_name":"GokarakondaRamadevudu","display_name":"Gokarakonda Ramadevudu","profile_url":"https://vce.academia.edu/GokarakondaRamadevudu?f_ri=21731","photo":"https://0.academia-photos.com/4524212/1867707/2217940/s65_gokarakonda.ramadevudu.jpg"}],"research_interests":[{"id":498,"name":"Physics","url":"https://www.academia.edu/Documents/in/Physics?f_ri=21731","nofollow":true},{"id":511,"name":"Materials Science","url":"https://www.academia.edu/Documents/in/Materials_Science?f_ri=21731","nofollow":true},{"id":523,"name":"Chemistry","url":"https://www.academia.edu/Documents/in/Chemistry?f_ri=21731","nofollow":true},{"id":530,"name":"Inorganic Chemistry","url":"https://www.academia.edu/Documents/in/Inorganic_Chemistry?f_ri=21731","nofollow":true},{"id":532,"name":"Physical Chemistry","url":"https://www.academia.edu/Documents/in/Physical_Chemistry?f_ri=21731"},{"id":10909,"name":"Carbon Nanotubes","url":"https://www.academia.edu/Documents/in/Carbon_Nanotubes?f_ri=21731"},{"id":11541,"name":"Graphene","url":"https://www.academia.edu/Documents/in/Graphene?f_ri=21731"},{"id":11973,"name":"Nanomaterials","url":"https://www.academia.edu/Documents/in/Nanomaterials?f_ri=21731"},{"id":13033,"name":"Optical Spectroscopy","url":"https://www.academia.edu/Documents/in/Optical_Spectroscopy?f_ri=21731"},{"id":13621,"name":"Nanoparticles","url":"https://www.academia.edu/Documents/in/Nanoparticles?f_ri=21731"},{"id":17733,"name":"Nanotechnology","url":"https://www.academia.edu/Documents/in/Nanotechnology?f_ri=21731"},{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731"},{"id":48317,"name":"Quantum Dots","url":"https://www.academia.edu/Documents/in/Quantum_Dots?f_ri=21731"},{"id":78842,"name":"Infrared spectroscopy","url":"https://www.academia.edu/Documents/in/Infrared_spectroscopy?f_ri=21731"},{"id":103213,"name":"Nanoscience","url":"https://www.academia.edu/Documents/in/Nanoscience?f_ri=21731"},{"id":209101,"name":"Nanorod","url":"https://www.academia.edu/Documents/in/Nanorod?f_ri=21731"},{"id":321243,"name":"EPR","url":"https://www.academia.edu/Documents/in/EPR?f_ri=21731"},{"id":335228,"name":"Glass Transition Temperature","url":"https://www.academia.edu/Documents/in/Glass_Transition_Temperature?f_ri=21731"},{"id":362808,"name":"Alkali Borate Glasses","url":"https://www.academia.edu/Documents/in/Alkali_Borate_Glasses?f_ri=21731"},{"id":432798,"name":"Solid State Ionics","url":"https://www.academia.edu/Documents/in/Solid_State_Ionics?f_ri=21731"},{"id":654600,"name":"OXIDE GLASSES","url":"https://www.academia.edu/Documents/in/OXIDE_GLASSES?f_ri=21731"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_35552160" data-work_id="35552160" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/35552160/LMPC_2017_New_Approaches_to_the_Control_of">LMPC 2017 New Approaches to the Control of</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">A theoretical model of a slag melt as a phase of variable stoichiometric composition and oxidation (its index is the equilibrium partial oxygen pressure, Ро2) has been studied. On the basis of these ideas, a new method has been developed... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_35552160" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">A theoretical model of a slag melt as a phase of variable stoichiometric composition and oxidation (its index is the equilibrium partial oxygen pressure, Ро2) has been studied. On the basis of these ideas, a new method has been developed in electroslag remelting for the control of oxygen and metal content and elements that have a high thermodynamic affinity for oxygen. <br />A model of oxygen behavior has been proposed in ESR taking into account a combination of thermodynamic factors (the chemical composition of the electrode metal, the composition and the amount of deoxidant inputs, the slag composition, its oxidation and temperature) and the kinetic characteristics (the reaction surface of metal-slag interaction, mass transfer rate in metal and slag), which allows for prediction of oxygen, aluminum, silicon and titanium concentrations in the ESR ingot metal. The results of the industrial implementation of differentiated slag deoxidation technologies in the production of solid and hollow ingots from low-alloy, high-chromium and titanium-doped steels with a mass from 20 kg to 60 tons are presented for the first time.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/35552160" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="35778c31cb9f5833ff7b4ef502e09506" rel="nofollow" data-download="{"attachment_id":55417503,"asset_id":35552160,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/55417503/download_file?st=MTc0MDU0MjEzMyw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="73398729" href="https://independent.academia.edu/leonidlevkov">leonid levkov</a><script data-card-contents-for-user="73398729" type="text/json">{"id":73398729,"first_name":"leonid","last_name":"levkov","domain_name":"independent","page_name":"leonidlevkov","display_name":"leonid levkov","profile_url":"https://independent.academia.edu/leonidlevkov?f_ri=21731","photo":"https://0.academia-photos.com/73398729/31957725/29104550/s65_leonid.levkov.jpg"}</script></span></span></li><li class="js-paper-rank-work_35552160 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="35552160"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 35552160, container: ".js-paper-rank-work_35552160", }); });</script></li><li class="js-percentile-work_35552160 InlineList-item InlineList-item--bordered hidden u-tcGrayDark"><span class="percentile-widget hidden"><span class="u-mr2x percentile-widget" style="display: none">•</span><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 35552160; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-percentile-work_35552160"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_35552160 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="35552160"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 35552160; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=35552160]").text(description); $(".js-view-count-work_35552160").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_35552160").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="35552160"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">3</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="21731" rel="nofollow" href="https://www.academia.edu/Documents/in/EPR_ESR">EPR, ESR</a>, <script data-card-contents-for-ri="21731" type="text/json">{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="39850" rel="nofollow" href="https://www.academia.edu/Documents/in/Metallurgy_and_Materials_Engineering">Metallurgy and Materials Engineering</a>, <script data-card-contents-for-ri="39850" type="text/json">{"id":39850,"name":"Metallurgy and Materials Engineering","url":"https://www.academia.edu/Documents/in/Metallurgy_and_Materials_Engineering?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="1278540" rel="nofollow" href="https://www.academia.edu/Documents/in/Steel_Slag">Steel Slag</a><script data-card-contents-for-ri="1278540" type="text/json">{"id":1278540,"name":"Steel Slag","url":"https://www.academia.edu/Documents/in/Steel_Slag?f_ri=21731","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=35552160]'), work: {"id":35552160,"title":"LMPC 2017 New Approaches to the Control of","created_at":"2018-01-01T10:02:48.547-08:00","url":"https://www.academia.edu/35552160/LMPC_2017_New_Approaches_to_the_Control_of?f_ri=21731","dom_id":"work_35552160","summary":"\nA theoretical model of a slag melt as a phase of variable stoichiometric composition and oxidation (its index is the equilibrium partial oxygen pressure, Ро2) has been studied. On the basis of these ideas, a new method has been developed in electroslag remelting for the control of oxygen and metal content and elements that have a high thermodynamic affinity for oxygen. \nA model of oxygen behavior has been proposed in ESR taking into account a combination of thermodynamic factors (the chemical composition of the electrode metal, the composition and the amount of deoxidant inputs, the slag composition, its oxidation and temperature) and the kinetic characteristics (the reaction surface of metal-slag interaction, mass transfer rate in metal and slag), which allows for prediction of oxygen, aluminum, silicon and titanium concentrations in the ESR ingot metal. The results of the industrial implementation of differentiated slag deoxidation technologies in the production of solid and hollow ingots from low-alloy, high-chromium and titanium-doped steels with a mass from 20 kg to 60 tons are presented for the first time.\n","downloadable_attachments":[{"id":55417503,"asset_id":35552160,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":73398729,"first_name":"leonid","last_name":"levkov","domain_name":"independent","page_name":"leonidlevkov","display_name":"leonid levkov","profile_url":"https://independent.academia.edu/leonidlevkov?f_ri=21731","photo":"https://0.academia-photos.com/73398729/31957725/29104550/s65_leonid.levkov.jpg"}],"research_interests":[{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true},{"id":39850,"name":"Metallurgy and Materials Engineering","url":"https://www.academia.edu/Documents/in/Metallurgy_and_Materials_Engineering?f_ri=21731","nofollow":true},{"id":1278540,"name":"Steel Slag","url":"https://www.academia.edu/Documents/in/Steel_Slag?f_ri=21731","nofollow":true}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_11184644" data-work_id="11184644" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/11184644/UPDATED_U_Th_K_DOSE_RATES_FACTORS_FOR_TL_OSL_DATING">UPDATED U, Th, K DOSE RATES FACTORS FOR TL/OSL DATING </a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">It has been about forty years since the dose-rate conversion factors commenced to appear in tabular forms and, ever since, periodical updates have been published. The present work contributes to this continuous updating, using the latest... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_11184644" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">It has been about forty years since the dose-rate conversion factors commenced to appear in tabular<br />forms and, ever since, periodical updates have been published. The present work contributes<br />to this continuous updating, using the latest evaluated nuclear data for the 238U-, 235U- and 232Thseries,<br />as well as for 40K and 87Rb, obtained from the Evaluated Nuclear Structure Data File (ENSDF)<br />database and the Nuclear Wallet Cards. An estimate of the accuracy of the dose-rate conversion factors<br />is further attempted for the first time, by taking into account individual uncertainties in all<br />quantities involved in the calculations.<br />A literature comparison between all previously published dose-rate conversion factors is presented<br />and their Historical Mean (HM) values are calculated. The standard deviation from the HM<br />is introduced as a measure of the fluctuation in individual updates. A selected example is given to<br />show that the use of the HM instead of the present dose-rate conversion factors has a minimal impact<br />on dating calculations performed by the thermoluminescence, the optically stimulated luminescence<br />and the electron spin resonance methods. It is concluded that there is no justification in<br />periodically reviewing the dose-rate conversion factors and thus, the present values can be considered<br />as a revised overview that future dating applications should safely rely upon.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/11184644" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="6bc32f2dda66a571cb568e53e92b204b" rel="nofollow" data-download="{"attachment_id":36815353,"asset_id":11184644,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/36815353/download_file?st=MTc0MDU0MjEzNCw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="425342" href="https://nwpu.academia.edu/IOANNISLIRITZIS">IOANNIS LIRITZIS</a><script data-card-contents-for-user="425342" type="text/json">{"id":425342,"first_name":"IOANNIS","last_name":"LIRITZIS","domain_name":"nwpu","page_name":"IOANNISLIRITZIS","display_name":"IOANNIS LIRITZIS","profile_url":"https://nwpu.academia.edu/IOANNISLIRITZIS?f_ri=21731","photo":"https://0.academia-photos.com/425342/2629320/33655202/s65_ioannis.liritzis.jpg"}</script></span></span></li><li class="js-paper-rank-work_11184644 InlineList-item InlineList-item--bordered hidden"><span class="js-paper-rank-view hidden u-tcGrayDark" data-paper-rank-work-id="11184644"><i class="u-m1x fa fa-bar-chart"></i><strong class="js-paper-rank"></strong></span><script>$(function() { new Works.PaperRankView({ workId: 11184644, container: ".js-paper-rank-work_11184644", }); 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$(".js-view-count[data-work-id=11184644]").text(description); $(".js-view-count-work_11184644").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_11184644").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="11184644"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">10</a>  </div><span class="InlineList-item-text u-textTruncate u-pl10x"><a class="InlineList-item-text" data-has-card-for-ri="392" rel="nofollow" href="https://www.academia.edu/Documents/in/Archaeology">Archaeology</a>, <script data-card-contents-for-ri="392" type="text/json">{"id":392,"name":"Archaeology","url":"https://www.academia.edu/Documents/in/Archaeology?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="399" rel="nofollow" href="https://www.academia.edu/Documents/in/Prehistoric_Archaeology">Prehistoric Archaeology</a>, <script data-card-contents-for-ri="399" type="text/json">{"id":399,"name":"Prehistoric Archaeology","url":"https://www.academia.edu/Documents/in/Prehistoric_Archaeology?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="10031" rel="nofollow" href="https://www.academia.edu/Documents/in/Radiation_Dosimetry">Radiation Dosimetry</a>, <script data-card-contents-for-ri="10031" type="text/json">{"id":10031,"name":"Radiation Dosimetry","url":"https://www.academia.edu/Documents/in/Radiation_Dosimetry?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="12807" rel="nofollow" href="https://www.academia.edu/Documents/in/Archaeometry">Archaeometry</a><script data-card-contents-for-ri="12807" type="text/json">{"id":12807,"name":"Archaeometry","url":"https://www.academia.edu/Documents/in/Archaeometry?f_ri=21731","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=11184644]'), work: {"id":11184644,"title":"UPDATED U, Th, K DOSE RATES FACTORS FOR TL/OSL DATING ","created_at":"2015-03-01T09:35:21.439-08:00","url":"https://www.academia.edu/11184644/UPDATED_U_Th_K_DOSE_RATES_FACTORS_FOR_TL_OSL_DATING?f_ri=21731","dom_id":"work_11184644","summary":"It has been about forty years since the dose-rate conversion factors commenced to appear in tabular\nforms and, ever since, periodical updates have been published. The present work contributes\nto this continuous updating, using the latest evaluated nuclear data for the 238U-, 235U- and 232Thseries,\nas well as for 40K and 87Rb, obtained from the Evaluated Nuclear Structure Data File (ENSDF)\ndatabase and the Nuclear Wallet Cards. An estimate of the accuracy of the dose-rate conversion factors\nis further attempted for the first time, by taking into account individual uncertainties in all\nquantities involved in the calculations.\nA literature comparison between all previously published dose-rate conversion factors is presented\nand their Historical Mean (HM) values are calculated. The standard deviation from the HM\nis introduced as a measure of the fluctuation in individual updates. A selected example is given to\nshow that the use of the HM instead of the present dose-rate conversion factors has a minimal impact\non dating calculations performed by the thermoluminescence, the optically stimulated luminescence\nand the electron spin resonance methods. It is concluded that there is no justification in\nperiodically reviewing the dose-rate conversion factors and thus, the present values can be considered\nas a revised overview that future dating applications should safely rely upon.","downloadable_attachments":[{"id":36815353,"asset_id":11184644,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":425342,"first_name":"IOANNIS","last_name":"LIRITZIS","domain_name":"nwpu","page_name":"IOANNISLIRITZIS","display_name":"IOANNIS LIRITZIS","profile_url":"https://nwpu.academia.edu/IOANNISLIRITZIS?f_ri=21731","photo":"https://0.academia-photos.com/425342/2629320/33655202/s65_ioannis.liritzis.jpg"}],"research_interests":[{"id":392,"name":"Archaeology","url":"https://www.academia.edu/Documents/in/Archaeology?f_ri=21731","nofollow":true},{"id":399,"name":"Prehistoric Archaeology","url":"https://www.academia.edu/Documents/in/Prehistoric_Archaeology?f_ri=21731","nofollow":true},{"id":10031,"name":"Radiation Dosimetry","url":"https://www.academia.edu/Documents/in/Radiation_Dosimetry?f_ri=21731","nofollow":true},{"id":12807,"name":"Archaeometry","url":"https://www.academia.edu/Documents/in/Archaeometry?f_ri=21731","nofollow":true},{"id":20614,"name":"OSL dating","url":"https://www.academia.edu/Documents/in/OSL_dating?f_ri=21731"},{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731"},{"id":22692,"name":"Luminescence Dating","url":"https://www.academia.edu/Documents/in/Luminescence_Dating?f_ri=21731"},{"id":78965,"name":"Holocene","url":"https://www.academia.edu/Documents/in/Holocene?f_ri=21731"},{"id":158914,"name":"Luminescence","url":"https://www.academia.edu/Documents/in/Luminescence?f_ri=21731"},{"id":1181487,"name":"ESR dating","url":"https://www.academia.edu/Documents/in/ESR_dating?f_ri=21731"}]}, }) } })();</script></ul></li></ul></div></div><div class="u-borderBottom1 u-borderColorGrayLighter"><div class="clearfix u-pv7x u-mb0x js-work-card work_16612326 coauthored" data-work_id="16612326" itemscope="itemscope" itemtype="https://schema.org/ScholarlyArticle"><div class="header"><div class="title u-fontSerif u-fs22 u-lineHeight1_3"><a class="u-tcGrayDarkest js-work-link" href="https://www.academia.edu/16612326/The_effect_of_nitrido_azide_and_nitrosyl_ligands_on_magnetization_densities_and_magnetic_properties_of_iridium_PNP_pincer_type_complexes">The effect of nitrido, azide, and nitrosyl ligands on magnetization densities and magnetic properties of iridium PNP pincer-type complexes</a></div></div><div class="u-pb4x u-mt3x"><div class="summary u-fs14 u-fw300 u-lineHeight1_5 u-tcGrayDarkest"><div class="summarized">We present a systematic theoretical study of electronic structures, magnetization densities, and magnetic properties of iridium PNP pincer-type complexes containing non-innocent nitrido, azide, and nitrosyl ligands. Specifically, the... <a class="more_link u-tcGrayDark u-linkUnstyled" data-container=".work_16612326" data-show=".complete" data-hide=".summarized" data-more-link-behavior="true" href="#">more</a></div><div class="complete hidden">We present a systematic theoretical study of electronic structures, magnetization densities, and magnetic properties of iridium PNP pincer-type complexes containing non-innocent nitrido, azide, and nitrosyl ligands. Specifically, the quality and accuracy of density functional theory (DFT) in predicting magnetization densities obtained from various approximate exchange-correlation functionals is assessed by comparing them to complete active space self-consistent field (CASSCF) reference distributions. Our analysis points to qualitative differences in DFT magnetization densities at the iridium metal center and the pincer ligand backbone compared to CASSCF reference data when the non-innocent ligands are changed from nitrido, to azide, to nitrosyl. These observations are reflected in large differences in hyperfine couplings calculated for the iridium metal center.</div></div></div><ul class="InlineList u-ph0x u-fs13"><li class="InlineList-item logged_in_only"><div class="share_on_academia_work_button"><a class="academia_share Button Button--inverseBlue Button--sm js-bookmark-button" data-academia-share="Work/16612326" data-share-source="work_strip" data-spinner="small_white_hide_contents"><i class="fa fa-plus"></i><span class="work-strip-link-text u-ml1x" data-content="button_text">Bookmark</span></a></div></li><li class="InlineList-item"><div class="download"><a id="ef731f3285e5e171c1acf31146ac6b09" rel="nofollow" data-download="{"attachment_id":39081095,"asset_id":16612326,"asset_type":"Work","always_allow_download":false,"track":null,"button_location":"work_strip","source":null,"hide_modal":null}" class="Button Button--sm Button--inverseGreen js-download-button prompt_button doc_download" href="https://www.academia.edu/attachments/39081095/download_file?st=MTc0MDU0MjEzNCw4LjIyMi4yMDguMTQ2&s=work_strip"><i class="fa fa-arrow-circle-o-down fa-lg"></i><span class="u-textUppercase u-ml1x" data-content="button_text">Download</span></a></div></li><li class="InlineList-item"><ul class="InlineList InlineList--bordered u-ph0x"><li class="InlineList-item InlineList-item--bordered"><span class="InlineList-item-text">by <span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a class="u-tcGrayDark u-fw700" data-has-card-for-user="33617325" href="https://torun-pl.academia.edu/KasiaBoguslawski">Katharina Boguslawski</a><script data-card-contents-for-user="33617325" type="text/json">{"id":33617325,"first_name":"Katharina","last_name":"Boguslawski","domain_name":"torun-pl","page_name":"KasiaBoguslawski","display_name":"Katharina Boguslawski","profile_url":"https://torun-pl.academia.edu/KasiaBoguslawski?f_ri=21731","photo":"https://0.academia-photos.com/33617325/9916472/11056250/s65_kasia.boguslawski.jpg"}</script></span></span><span class="u-displayInlineBlock InlineList-item-text"> and <span class="u-textDecorationUnderline u-clickable InlineList-item-text js-work-more-authors-16612326">+1</span><div class="hidden js-additional-users-16612326"><div><span itemscope="itemscope" itemprop="author" itemtype="https://schema.org/Person"><a href="https://torun-pl.academia.edu/Pawe%C5%82Tecmer">Paweł Tecmer</a></span></div></div></span><script>(function(){ var popoverSettings = { el: $('.js-work-more-authors-16612326'), placement: 'bottom', hide_delay: 200, html: true, content: function(){ return $('.js-additional-users-16612326').html(); 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container.find('.percentile-widget').removeClass('hidden'); }); });</script></li><li class="js-view-count-work_16612326 InlineList-item InlineList-item--bordered hidden"><div><span><span class="js-view-count view-count u-mr2x" data-work-id="16612326"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 16612326; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=16612326]").text(description); $(".js-view-count-work_16612326").attr('title', description).tooltip(); }); });</script></span><script>$(function() { $(".js-view-count-work_16612326").removeClass('hidden') })</script></div></li><li class="InlineList-item u-positionRelative" style="max-width: 250px"><div class="u-positionAbsolute" data-has-card-for-ri-list="16612326"><i class="fa fa-tag InlineList-item-icon u-positionRelative"></i>  <a class="InlineList-item-text u-positionRelative">7</a>  </div><span class="InlineList-item-text u-textTruncate u-pl9x"><a class="InlineList-item-text" data-has-card-for-ri="21731" rel="nofollow" href="https://www.academia.edu/Documents/in/EPR_ESR">EPR, ESR</a>, <script data-card-contents-for-ri="21731" type="text/json">{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="37780" rel="nofollow" href="https://www.academia.edu/Documents/in/EPR_Spectroscopy">EPR Spectroscopy</a>, <script data-card-contents-for-ri="37780" type="text/json">{"id":37780,"name":"EPR Spectroscopy","url":"https://www.academia.edu/Documents/in/EPR_Spectroscopy?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="77601" rel="nofollow" href="https://www.academia.edu/Documents/in/DFT_calculation">DFT calculation</a>, <script data-card-contents-for-ri="77601" type="text/json">{"id":77601,"name":"DFT calculation","url":"https://www.academia.edu/Documents/in/DFT_calculation?f_ri=21731","nofollow":true}</script><a class="InlineList-item-text" data-has-card-for-ri="97535" rel="nofollow" href="https://www.academia.edu/Documents/in/Transition_metals">Transition metals</a><script data-card-contents-for-ri="97535" type="text/json">{"id":97535,"name":"Transition metals","url":"https://www.academia.edu/Documents/in/Transition_metals?f_ri=21731","nofollow":true}</script></span></li><script>(function(){ if (true) { new Aedu.ResearchInterestListCard({ el: $('*[data-has-card-for-ri-list=16612326]'), work: {"id":16612326,"title":"The effect of nitrido, azide, and nitrosyl ligands on magnetization densities and magnetic properties of iridium PNP pincer-type complexes","created_at":"2015-10-09T20:15:05.881-07:00","url":"https://www.academia.edu/16612326/The_effect_of_nitrido_azide_and_nitrosyl_ligands_on_magnetization_densities_and_magnetic_properties_of_iridium_PNP_pincer_type_complexes?f_ri=21731","dom_id":"work_16612326","summary":"We present a systematic theoretical study of electronic structures, magnetization densities, and magnetic properties of iridium PNP pincer-type complexes containing non-innocent nitrido, azide, and nitrosyl ligands. Specifically, the quality and accuracy of density functional theory (DFT) in predicting magnetization densities obtained from various approximate exchange-correlation functionals is assessed by comparing them to complete active space self-consistent field (CASSCF) reference distributions. Our analysis points to qualitative differences in DFT magnetization densities at the iridium metal center and the pincer ligand backbone compared to CASSCF reference data when the non-innocent ligands are changed from nitrido, to azide, to nitrosyl. These observations are reflected in large differences in hyperfine couplings calculated for the iridium metal center.","downloadable_attachments":[{"id":39081095,"asset_id":16612326,"asset_type":"Work","always_allow_download":false}],"ordered_authors":[{"id":33617325,"first_name":"Katharina","last_name":"Boguslawski","domain_name":"torun-pl","page_name":"KasiaBoguslawski","display_name":"Katharina Boguslawski","profile_url":"https://torun-pl.academia.edu/KasiaBoguslawski?f_ri=21731","photo":"https://0.academia-photos.com/33617325/9916472/11056250/s65_kasia.boguslawski.jpg"},{"id":33604837,"first_name":"Paweł","last_name":"Tecmer","domain_name":"torun-pl","page_name":"PawełTecmer","display_name":"Paweł Tecmer","profile_url":"https://torun-pl.academia.edu/Pawe%C5%82Tecmer?f_ri=21731","photo":"https://0.academia-photos.com/33604837/9916389/11056152/s65_pawe_.tecmer.jpg"}],"research_interests":[{"id":21731,"name":"EPR, ESR","url":"https://www.academia.edu/Documents/in/EPR_ESR?f_ri=21731","nofollow":true},{"id":37780,"name":"EPR Spectroscopy","url":"https://www.academia.edu/Documents/in/EPR_Spectroscopy?f_ri=21731","nofollow":true},{"id":77601,"name":"DFT calculation","url":"https://www.academia.edu/Documents/in/DFT_calculation?f_ri=21731","nofollow":true},{"id":97535,"name":"Transition metals","url":"https://www.academia.edu/Documents/in/Transition_metals?f_ri=21731","nofollow":true},{"id":133975,"name":"Magnetic Properties","url":"https://www.academia.edu/Documents/in/Magnetic_Properties?f_ri=21731"},{"id":283805,"name":"Iridium","url":"https://www.academia.edu/Documents/in/Iridium?f_ri=21731"},{"id":969627,"name":"Casscf","url":"https://www.academia.edu/Documents/in/Casscf?f_ri=21731"}]}, }) } })();</script></ul></li></ul></div></div></div><div class="u-taCenter Pagination"><ul class="pagination"><li class="next_page"><a href="/Documents/in/EPR_ESR?after=50%2C16612326" rel="next">Next</a></li><li 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