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class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/33874687/Behavioural_responses_of_moose_to_thermal_conditions_in_the_boreal_forest"><img alt="Research paper thumbnail of Behavioural responses of moose to thermal conditions in the boreal forest" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/33874687/Behavioural_responses_of_moose_to_thermal_conditions_in_the_boreal_forest">Behavioural responses of moose to thermal conditions in the boreal forest</a></div><div class="wp-workCard_item"><span>Écoscience</span><span>, 2004</span></div><div class="wp-workCard_item wp-workCard--actions"><span 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class="js-work-strip profile--work_container" data-work-id="33874686"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/33874686/Thermogenic_Capacity_in_Gray_and_Black_Morphs_of_the_Gray_Squirrel_Sciurus_carolinensis"><img alt="Research paper thumbnail of Thermogenic Capacity in Gray and Black Morphs of the Gray Squirrel, Sciurus carolinensis" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/33874686/Thermogenic_Capacity_in_Gray_and_Black_Morphs_of_the_Gray_Squirrel_Sciurus_carolinensis">Thermogenic Capacity in Gray and Black Morphs of the Gray Squirrel, Sciurus carolinensis</a></div><div class="wp-workCard_item"><span>Physiological Zoology</span><span>, 1989</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="33874686"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="33874686"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 33874686; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); 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href="https://www.academia.edu/33874685/Osmoregulation_in_Acanthamoeba_castellanii_III_Relations_between_dry_weight_water_and_inorganic_ions_and_control_of_the_ionic_levels"><img alt="Research paper thumbnail of Osmoregulation in Acanthamoeba castellanii—III. Relations between dry weight, water, and inorganic ions, and control of the ionic levels" class="work-thumbnail" src="https://attachments.academia-assets.com/53851389/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/33874685/Osmoregulation_in_Acanthamoeba_castellanii_III_Relations_between_dry_weight_water_and_inorganic_ions_and_control_of_the_ionic_levels">Osmoregulation in Acanthamoeba castellanii—III. Relations between dry weight, water, and inorganic ions, and control of the ionic levels</a></div><div class="wp-workCard_item"><span>Comparative Biochemistry and Physiology Part A Physiology</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Al~traet--1. The variations of the total ion content of Acanthamoeba (178-365 x 10-15 mol) are sm...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Al~traet--1. The variations of the total ion content of Acanthamoeba (178-365 x 10-15 mol) are small as compared to variations of the external osmotic pressure (40-500 mOsm) due to salts or sucrose.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="0999ecfc56c4fbdbdb492a1a27a51bb9" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":53851389,"asset_id":33874685,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/53851389/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="33874685"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="33874685"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 33874685; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=33874685]").text(description); $(".js-view-count[data-work-id=33874685]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 33874685; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='33874685']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "0999ecfc56c4fbdbdb492a1a27a51bb9" } } $('.js-work-strip[data-work-id=33874685]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":33874685,"title":"Osmoregulation in Acanthamoeba castellanii—III. 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J Exp Biol" class="work-thumbnail" src="https://attachments.academia-assets.com/53851392/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/33874684/The_metabolic_cost_of_flight_in_unrestrained_birds_J_Exp_Biol">The metabolic cost of flight in unrestrained birds. J Exp Biol</a></div><div class="wp-workCard_item"><span>Journal of Experimental Biology</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Oxygen consumption and carbon dioxide production were measured during flight in unrestrained star...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Oxygen consumption and carbon dioxide production were measured during flight in unrestrained starlings by a new method. Mean RQ after the first 30 min of flight was 0-69 ± 0-08 (± S.D.). Mean rate of carbon dioxide production was 19-7+ 2-2 ml CO 2 /min, which corresponds to a metabolic rate of 8-9 ± 1 W. Metabolic rate during flight did not change significantly over a range of air speeds from 8 to 18 m/s and birds would not fly at speeds outside of this range. Current theories of bird flight predict a large change in metabolic rate over the same range of speeds. Wingbeat frequency was constant at 12 ±0-5 Hz. Wingbeat amplitude reached a minimum at a speed of 14 m/s and increased at both higher and lower speeds. Angle between the body and horizontal was least at high speeds and increased at low speeds. As existing theories do not take into account the change of drag resulting from changes in body attitude, this may be a cause of the discrepancies between theory and observation.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="770d4ba0297c7e22ab8470149d9d2e00" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":53851392,"asset_id":33874684,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/53851392/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="33874684"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="33874684"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 33874684; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=33874684]").text(description); $(".js-view-count[data-work-id=33874684]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 33874684; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='33874684']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "770d4ba0297c7e22ab8470149d9d2e00" } } $('.js-work-strip[data-work-id=33874684]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":33874684,"title":"The metabolic cost of flight in unrestrained birds. 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In : Some Conlemporary Sludies in Marine Science (Ed. by H. Barnes), pp. 407-420. George Alle...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">... In : Some Conlemporary Sludies in Marine Science (Ed. by H. Barnes), pp. 407-420. George Allen &amp; Unwin, Ltd., London. ... IV. Zur l4C-Assimilation einiger litoraler Braunalgen im sub mersen und emersen Zustand. Z. Pj!anzenphysiol., 68, 357-363. ... Arch. Mikro bioi., 21, 156-166. ...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="33874683"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="33874683"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 33874683; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=33874683]").text(description); $(".js-view-count[data-work-id=33874683]").attr('title', description).tooltip(); 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</script> <div class="js-work-strip profile--work_container" data-work-id="33874676"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/33874676/Polyamines_in_Presence_of_an_unusually_high_osmotically_sensitive_pool_of_1_3_diaminopropane"><img alt="Research paper thumbnail of Polyamines in : Presence of an unusually high, osmotically sensitive pool of 1,3-diaminopropane" class="work-thumbnail" src="https://attachments.academia-assets.com/53851386/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/33874676/Polyamines_in_Presence_of_an_unusually_high_osmotically_sensitive_pool_of_1_3_diaminopropane">Polyamines in : Presence of an unusually high, osmotically sensitive pool of 1,3-diaminopropane</a></div><div class="wp-workCard_item"><span>Biochemical and Biophysical Research Communications</span><span>, 1984</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="2e0353ac73f86b441ab783f6a09acd1e" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":53851386,"asset_id":33874676,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/53851386/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="33874676"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="33874676"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 33874676; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="6015404"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/6015404/Intermittent_hypoxia_and_plasticity_of_respiratory_chemoreflexes_in_metamorphic_bullfrog_tadpoles"><img alt="Research paper thumbnail of Intermittent hypoxia and plasticity of respiratory chemoreflexes in metamorphic bullfrog tadpoles" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/6015404/Intermittent_hypoxia_and_plasticity_of_respiratory_chemoreflexes_in_metamorphic_bullfrog_tadpoles">Intermittent hypoxia and plasticity of respiratory chemoreflexes in metamorphic bullfrog tadpoles</a></div><div class="wp-workCard_item wp-workCard--coauthors"><span>by </span><span><a class="" data-click-track="profile-work-strip-authors" href="https://ulaval.academia.edu/JacquesLarochelle">Jacques Larochelle</a> and <a class="" data-click-track="profile-work-strip-authors" href="https://independent.academia.edu/RichardKinkead">Richard Kinkead</a></span></div><div class="wp-workCard_item"><span>Respiratory Physiology & Neurobiology</span><span>, 2003</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">We tested the hypothesis that intermittent hypoxia elicits plasticity in respiratory chemoreflexe...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">We tested the hypothesis that intermittent hypoxia elicits plasticity in respiratory chemoreflexes in bullfrog tadpoles. Metamorphic tadpoles (Taylor-Kollros stages XVI-XX) were subjected to intermittent hypoxia (PW(O(2))=45 Torr; 12 h/day) or constant normoxia (PW(O(2))=156 Torr) for 2 weeks before ventilatory responses to hypoxia and hypercarbia were measured. Buccal pressure changes were used to quantify the frequency and amplitude of movements associated with gill and lung ventilation. Morphometric assessment showed that intermittent hypoxia delayed development in comparison with controls. Oxygen consumption was enhanced in tadpoles subjected to intermittent hypoxia; however, this increase was not sufficient to affect basal ventilatory activity or the hypoxic ventilatory response. During acute hypercarbic exposure, tadpoles subjected to intermittent hypoxia showed (1) a greater decrease in gill ventilation frequency and (2) a greater increase in lung ventilation frequency than tadpoles maintained under control conditions. We conclude that intermittent hypoxia augments the responsiveness to hypercarbia, thereby promoting lung ventilation when animals face this stimulus. This manifestation of respiratory plasticity may reflect uncoupling between physiological and morphological development in the bi-modally breathing bullfrog tadpole.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="6015404"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="6015404"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 6015404; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=6015404]").text(description); $(".js-view-count[data-work-id=6015404]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 6015404; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='6015404']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=6015404]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":6015404,"title":"Intermittent hypoxia and plasticity of respiratory chemoreflexes in metamorphic bullfrog tadpoles","internal_url":"https://www.academia.edu/6015404/Intermittent_hypoxia_and_plasticity_of_respiratory_chemoreflexes_in_metamorphic_bullfrog_tadpoles","owner_id":8990311,"coauthors_can_edit":true,"owner":{"id":8990311,"first_name":"Jacques","middle_initials":"","last_name":"Larochelle","page_name":"JacquesLarochelle","domain_name":"ulaval","created_at":"2014-02-09T12:19:53.326-08:00","display_name":"Jacques Larochelle","url":"https://ulaval.academia.edu/JacquesLarochelle"},"attachments":[]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="6015397"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/6015397/Book_Review_Ecophysiology_of_the_Camelidae_and_Desert_Ruminants_Adaptations_of_Desert_Organisms_R_T_Wilson"><img alt="Research paper thumbnail of Book Review:Ecophysiology of the Camelidae and Desert Ruminants. Adaptations of Desert Organisms. R. T. Wilson" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/6015397/Book_Review_Ecophysiology_of_the_Camelidae_and_Desert_Ruminants_Adaptations_of_Desert_Organisms_R_T_Wilson">Book Review:Ecophysiology of the Camelidae and Desert Ruminants. Adaptations of Desert Organisms. R. T. Wilson</a></div><div class="wp-workCard_item"><span>Quarterly Review of Biology</span><span>, 1990</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="6015397"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="6015397"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 6015397; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=6015397]").text(description); $(".js-view-count[data-work-id=6015397]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 6015397; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='6015397']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=6015397]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":6015397,"title":"Book Review:Ecophysiology of the Camelidae and Desert Ruminants. Adaptations of Desert Organisms. R. T. Wilson","internal_url":"https://www.academia.edu/6015397/Book_Review_Ecophysiology_of_the_Camelidae_and_Desert_Ruminants_Adaptations_of_Desert_Organisms_R_T_Wilson","owner_id":8990311,"coauthors_can_edit":true,"owner":{"id":8990311,"first_name":"Jacques","middle_initials":"","last_name":"Larochelle","page_name":"JacquesLarochelle","domain_name":"ulaval","created_at":"2014-02-09T12:19:53.326-08:00","display_name":"Jacques Larochelle","url":"https://ulaval.academia.edu/JacquesLarochelle"},"attachments":[]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="6015395"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/6015395/THE_COOLING_POWER_OF_THE_PIGEON_HEAD"><img alt="Research paper thumbnail of THE COOLING POWER OF THE PIGEON HEAD" class="work-thumbnail" src="https://attachments.academia-assets.com/32959486/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/6015395/THE_COOLING_POWER_OF_THE_PIGEON_HEAD">THE COOLING POWER OF THE PIGEON HEAD</a></div><div class="wp-workCard_item wp-workCard--coauthors"><span>by </span><span><a class="" data-click-track="profile-work-strip-authors" href="https://ulaval.academia.edu/JacquesLarochelle">Jacques Larochelle</a> and <a class="" data-click-track="profile-work-strip-authors" href="https://independent.academia.edu/RobertStlaurent">Robert Stlaurent</a></span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Resting pigeons preheated to a stable core temperature of 43.2˚C, which is within the range of bo...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Resting pigeons preheated to a stable core temperature of 43.2˚C, which is within the range of body temperatures recorded during flight, were able to cool their body at high rates if their head and upper neck were exposed to an air stream at 23.5˚C. The heat dissipation capacity of the head and neck, estimated from measurements made at a wind speed (100 km h Ϫ1 ) corresponding to fast flight, was 9.8 W, or 4.5 times the resting heat production. Since the greater part of this capacity, about 8 W, was attributable to the inner surfaces of the mouth, ram ventilation of the buccal cavity appears to be an important mechanism for increasing evaporative heat loss during flight. Accordingly, wind-assisted mouth cooling should be utilized by resting pigeons, since exposure to a slight breeze (approximately 10 km h Ϫ1 ) could augment their dissipating power by an amount equivalent to their resting metabolic rate. It is concluded that beak opening, together with a source of convection other than panting and gular flutter, is required to exploit fully the heat dissipation capacity of the buccopharyngeal mucosa of birds.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="1129e18a013d8c163e9efb7bcd1d3ed4" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":32959486,"asset_id":6015395,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/32959486/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="6015395"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="6015395"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 6015395; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="6009454"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/6009454/AN_ALTERNATE_GROWTH_PATTERN_FOR_LAMINARIA_LONGICRURIS1_2"><img alt="Research paper thumbnail of AN ALTERNATE GROWTH PATTERN FOR LAMINARIA LONGICRURIS1,2" class="work-thumbnail" src="https://attachments.academia-assets.com/49055680/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/6009454/AN_ALTERNATE_GROWTH_PATTERN_FOR_LAMINARIA_LONGICRURIS1_2">AN ALTERNATE GROWTH PATTERN FOR LAMINARIA LONGICRURIS1,2</a></div><div class="wp-workCard_item"><span>Journal of Phycology</span><span>, 2008</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">A population of Laminaria longicruris de la Pylaie was followed for a year at Bic Island, Quebec,...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">A population of Laminaria longicruris de la Pylaie was followed for a year at Bic Island, Quebec, Canada where nutrient levels in the seawater were elevated throughout the year. Tagged kelp were measured each month for growth and analyzed for alginic acid, laminaran, mannitol, carbon, nitrogen, and nitrate. Maximum growth (3.5 cm · d−1) was observed in June, and minimal growth (0.18 cm · d−1) from December to February, when ice cover limited light levels. No reserves of carbon or nitrate were formed. Laminaran levels remained below 2.7% dry weight while tissue nitrate did not exceed 0.75 μmol · g−1 dry weight. Total carbon produced per plant was 40 g C · yr−1. Nutrient availability enables the kelp to take advantage of summer light and temperature conditions to grow rapidly.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="5e63acb2f0692062b7d11182ce99c236" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":49055680,"asset_id":6009454,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/49055680/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="6009454"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="6009454"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 6009454; 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dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "5e63acb2f0692062b7d11182ce99c236" } } $('.js-work-strip[data-work-id=6009454]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":6009454,"title":"AN ALTERNATE GROWTH PATTERN FOR LAMINARIA LONGICRURIS1,2","internal_url":"https://www.academia.edu/6009454/AN_ALTERNATE_GROWTH_PATTERN_FOR_LAMINARIA_LONGICRURIS1_2","owner_id":8990311,"coauthors_can_edit":true,"owner":{"id":8990311,"first_name":"Jacques","middle_initials":"","last_name":"Larochelle","page_name":"JacquesLarochelle","domain_name":"ulaval","created_at":"2014-02-09T12:19:53.326-08:00","display_name":"Jacques Larochelle","url":"https://ulaval.academia.edu/JacquesLarochelle"},"attachments":[{"id":49055680,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/49055680/thumbnails/1.jpg","file_name":"j.1529-8817.1981.tb00869.x20160923-14436-tktxkz.pdf","download_url":"https://www.academia.edu/attachments/49055680/download_file","bulk_download_file_name":"AN_ALTERNATE_GROWTH_PATTERN_FOR_LAMINARI.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/49055680/j.1529-8817.1981.tb00869.x20160923-14436-tktxkz-libre.pdf?1474619872=\u0026response-content-disposition=attachment%3B+filename%3DAN_ALTERNATE_GROWTH_PATTERN_FOR_LAMINARI.pdf\u0026Expires=1740204448\u0026Signature=dkHCGGyZzbP8lysHlPdzcd1t6ITik5uG4tKJMYGBk9vpkBC5Y5iFJxTxPUHwzVoZ32pZI15B3607MXdebqtOunCViCTCVIYRDnY8cK2HpHf7xHDpMCvWz6ONRrpkVWj7V2bgvgwRhT~eJjkhtO4JncPr4N4~n0s9SoMNRDanfVR1T1ECjMeSwt3Y2eyQKAA9KNRKHbuThiZWteOCD4JFTVNxzK97smOF647PJvjql8HaXzLzrZFGsZqc-47ywMnenr4BkGK1A-BOMfJ3c0F48mR2l~qvioplzRvmpxeCcQaMWbC7TGe2qu4mDPeVxFKWVaFcF7v9Vo4vaTicU-ummw__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="6009449"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/6009449/The_effect_of_oxygen_availability_on_the_osmoregulatory_contribution_of_free_amino_acids_in_Acanthamoeba_castellanii"><img alt="Research paper thumbnail of The effect of oxygen availability on the osmoregulatory contribution of free amino acids in Acanthamoeba castellanii" class="work-thumbnail" src="https://attachments.academia-assets.com/49055690/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/6009449/The_effect_of_oxygen_availability_on_the_osmoregulatory_contribution_of_free_amino_acids_in_Acanthamoeba_castellanii">The effect of oxygen availability on the osmoregulatory contribution of free amino acids in Acanthamoeba castellanii</a></div><div class="wp-workCard_item"><span>Canadian Journal of Zoology-revue Canadienne De Zoologie</span><span>, 1986</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">1986. The effect of oxygen availability on the osmoregulatory contribution of free amino acids in...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">1986. The effect of oxygen availability on the osmoregulatory contribution of free amino acids in Acanthamoeba castellanii. Can. J . Zool. 64: 1430-1435 In Acanthamoeba, the availability of oxygen markedly affects the response to hyperosmotic (250 to 500 mosmol/kg water) or hypoosmotic (250 to 125 mosmol/kg water) stress. The short-term recovery of cell hydration after hyperosmotic shock was more rapid at a Po2 of 54 Torr (1 Torr = 133.322 Pa) than at 5 Torr, despite similar increases in the free amino acid content of the cell (2.3-to 2.4-fold). Under anoxia, the early response to both hyper-and hypo-osmotic stress resulted in osmometer-like cells and the osmoregulatory contribution of the free amino acid pool following hyperosmotic shock was totally abolished. After a hypoosmotic shock under anoxia, however, the decrease of the free amino acid pool, though much slower, was of the same magnitude as under aerobic conditions (1.8-to 2.5-fold). This was apparently the only osmoregulatory mechanism operative in the absence of oxygen. The free amino acid pool was qualitatively affected by the oxygenation level, with proline being more abundant at high Po2 and alanine being more important under low Po2 and anoxia. The oxygen consumption of the cells was essentially unaffected by osmotic stress and by the Po2 level. The osmotically induced changes in the free amino acid content of the cell involve flows of energy into and out of the free amino acid pool that appear considerable when compared with the energy available from oxidative metabolism. This suggests that de novo synthesis and complete oxidation have only a limited role in the supply and disposal of the free amino acids involved in osmotic regulation. GEOFFRION, Y., H. GUDERLEY et J. LAROCHELLE. 1986. The effect of oxygen availability on the osmoregulatory contribution of free amino acids in Acanthamoeba castellanii. Can. J . Zool. 64: 1430-1435. Chez Acanthamoeba, la disponibilitk de I'oxygkne exerce une influence considkrable sur la rCponse aux stress hyperosmotiques (250 a 500 mosmol/kg d'eau) et hypo-osmotiques (250 a 125 mosmol/kg d'eau). Ainsi, nous avons observC qu'aprks un choc hyperosmotique, la rkhydratation des cellules Ctait plus rapide a une Po2 de 54 Torr (1 Torr = 133.322 Pa) qu'a une Po2 de 5 Torr, malgrC de semblables augmentations du contenu cellulaire en acides aminCs libres dans les deux cas (2.3-2.4 fois). En anoxie, le comportement initial des cellules face aux deux types de chocs osmotiques Ctait de type osmomktre, et la contribution osmorCgulatrice des acides aminks libres, advenant un choc hyperosmotique, Ctait abolie. Cependant, aprks un choc hypo-osmotique, la baisse du contenu en acides aminks libres, bien que plus lente en anoxie, atteignait une valeur comparable a celles observkes en conditions aCrobies (1.8-2.5 fois) et semblait constituer le seul mCcanisme d'osmorCgulation encore fonctionnel. Le degrC d'oxygknation affectait Cgalement la composition du pool des acides aminks libres, la proline dominant a la Po2 la plus ClevCe alors que l'alanine s'avCrait plus importante a faible Po2 et en anoxie. Le fait de modifier I'oxygCnation et I'osmolalitC du milieu n'avait que peu d'effet sur la consommation d'oxygkne des amibes. Pourtant, les changements du contenu cellulaire en acides aminks libres provoquCs p a les chocs osmotiques impliquaient de grandes variations dans la valeur CnergCtique du pool. Ces variations, considCrables par rapport a 1'Cnergie produite par le mCtabolisme aCrobie, suggkrent une participation IimitCe de la synthkse de novo et de l'oxydation complkte a l'accumulation eta l'klimination des acides aminCs libres qui contribuent a 1'osmorCgulation.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="626193c200bab8a0ba523eadd4b198fa" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":49055690,"asset_id":6009449,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/49055690/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="6009449"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="6009449"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 6009449; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="6009448"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/6009448/Compartmentation_and_Activities_of_Enzymes_Involved_in_the_Metabolism_of_Amino_Acids_Implicated_in_Osmoregulatory_Mechanisms_in_Acanthamoeba_castellanii"><img alt="Research paper thumbnail of Compartmentation and Activities of Enzymes Involved in the Metabolism of Amino Acids Implicated in Osmoregulatory Mechanisms in Acanthamoeba castellanii" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/6009448/Compartmentation_and_Activities_of_Enzymes_Involved_in_the_Metabolism_of_Amino_Acids_Implicated_in_Osmoregulatory_Mechanisms_in_Acanthamoeba_castellanii">Compartmentation and Activities of Enzymes Involved in the Metabolism of Amino Acids Implicated in Osmoregulatory Mechanisms in Acanthamoeba castellanii</a></div><div class="wp-workCard_item"><span>Journal of Eukaryotic Microbiology</span><span>, 1988</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Glutamate dehydrogenase in Acanthamoeba castellanii is an NAD-dependent cytosolic enzyme. This is...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Glutamate dehydrogenase in Acanthamoeba castellanii is an NAD-dependent cytosolic enzyme. This is similar to glutamate dehydrogenases in Phycomycetes, but very different from the dual coenzyme-specific enzymes located in mitochondria in animals and in mitochondria and chloroplasts in higher plants. Pyrroline-5-carboxylate (P-5-C) reductase occurs also in the cytoplasm in A. castellanii and has very high affinities for L-P-5-C (Km= 12 μM) and NADH (Km= 15 μM). In contrast, ornithine aminotransferase and proline oxidase are mitochondrial enzymes. No proline-inhibited γ-glutamyl kinase was detected while an active glutamine synthetase was found in the cytosolic compartment. Evidence for a mitochondrial transport system for L-proline was obtained. Two possible pathways for proline biosynthesis in A. castellanii are discussed based on information obtained about activities and subcellular compartmentation of enzymes.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="6009448"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="6009448"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 6009448; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); 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} }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="6009447"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/6009447/The_free_amino_acid_contribution_to_osmotic_regulation_in_Acanthamoeba_castellanii"><img alt="Research paper thumbnail of The free amino acid contribution to osmotic regulation in Acanthamoeba castellanii" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/6009447/The_free_amino_acid_contribution_to_osmotic_regulation_in_Acanthamoeba_castellanii">The free amino acid contribution to osmotic regulation in Acanthamoeba castellanii</a></div><div class="wp-workCard_item"><span>Canadian Journal of Zoology-revue Canadienne De Zoologie</span><span>, 1984</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="6009447"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="6009447"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 6009447; 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Following hyperosmotic shock, the rapid appearance in the medium of previously ingested proline indicated a rapid release of pinosome contents induced by osmotic dehydration. Initially endocytotic uptake and protein synthesis were both markedly inhibited, but they recovered over the following hours. Total cell proteins decreased by 20% within 30 minutes after hyperosmotic stress, and this decrease was concomitant with a rapid accumulation of free ninhydrin-positive substances.Following a hyperosmotic shock, free alanine, glutamate, and proline transiently accumulated, in this sequence. Aminooxyacetate prevented the accumulation of alanine while greatly stimulating that of glutamate, but its effect on proline accumulation was small. In cells incubated with radioactive alanine, the accumulation of free alanine proceeded mostly from unlabeled precursors and coincided with a high rate of radioactive glutamate synthesis. This newly synthesized glutamate was extensively converted into proline, while proline synthesis from ornithine was barely stimulated. During acclimation to hyperosmotic conditions, osmoregulatory mechanisms in A. castellanii appear to rely only transiently on free amino acids, particularly on those whose access to main metabolic pathways is not allosterically regulated.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="afccdb825b64dcc7ed4cdff8fce51d76" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":49055678,"asset_id":6009446,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/49055678/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="6009446"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="6009446"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 6009446; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> </div><div class="profile--tab_content_container js-tab-pane tab-pane" data-section-id="1141224" id="papers"><div class="js-work-strip profile--work_container" data-work-id="33874687"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/33874687/Behavioural_responses_of_moose_to_thermal_conditions_in_the_boreal_forest"><img alt="Research paper thumbnail of Behavioural responses of moose to thermal conditions in the boreal forest" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/33874687/Behavioural_responses_of_moose_to_thermal_conditions_in_the_boreal_forest">Behavioural responses of moose to thermal conditions in the boreal forest</a></div><div class="wp-workCard_item"><span>Écoscience</span><span>, 2004</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="33874687"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="33874687"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 33874687; 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Relations between dry weight, water, and inorganic ions, and control of the ionic levels" class="work-thumbnail" src="https://attachments.academia-assets.com/53851389/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/33874685/Osmoregulation_in_Acanthamoeba_castellanii_III_Relations_between_dry_weight_water_and_inorganic_ions_and_control_of_the_ionic_levels">Osmoregulation in Acanthamoeba castellanii—III. Relations between dry weight, water, and inorganic ions, and control of the ionic levels</a></div><div class="wp-workCard_item"><span>Comparative Biochemistry and Physiology Part A Physiology</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Al~traet--1. The variations of the total ion content of Acanthamoeba (178-365 x 10-15 mol) are sm...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Al~traet--1. The variations of the total ion content of Acanthamoeba (178-365 x 10-15 mol) are small as compared to variations of the external osmotic pressure (40-500 mOsm) due to salts or sucrose.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="0999ecfc56c4fbdbdb492a1a27a51bb9" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":53851389,"asset_id":33874685,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/53851389/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="33874685"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="33874685"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 33874685; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=33874685]").text(description); $(".js-view-count[data-work-id=33874685]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 33874685; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='33874685']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "0999ecfc56c4fbdbdb492a1a27a51bb9" } } $('.js-work-strip[data-work-id=33874685]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":33874685,"title":"Osmoregulation in Acanthamoeba castellanii—III. Relations between dry weight, water, and inorganic ions, and control of the ionic levels","internal_url":"https://www.academia.edu/33874685/Osmoregulation_in_Acanthamoeba_castellanii_III_Relations_between_dry_weight_water_and_inorganic_ions_and_control_of_the_ionic_levels","owner_id":8990311,"coauthors_can_edit":true,"owner":{"id":8990311,"first_name":"Jacques","middle_initials":"","last_name":"Larochelle","page_name":"JacquesLarochelle","domain_name":"ulaval","created_at":"2014-02-09T12:19:53.326-08:00","display_name":"Jacques Larochelle","url":"https://ulaval.academia.edu/JacquesLarochelle"},"attachments":[{"id":53851389,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/53851389/thumbnails/1.jpg","file_name":"0300-9629_2878_2990317-120170713-21731-hb0l0x.pdf","download_url":"https://www.academia.edu/attachments/53851389/download_file","bulk_download_file_name":"Osmoregulation_in_Acanthamoeba_castellan.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/53851389/0300-9629_2878_2990317-120170713-21731-hb0l0x-libre.pdf?1499975018=\u0026response-content-disposition=attachment%3B+filename%3DOsmoregulation_in_Acanthamoeba_castellan.pdf\u0026Expires=1740204448\u0026Signature=IeHySA0Mq63qq0YJTPMSOFbd4Ve4iIip0lfoaUshV2rt3nUovaSfiCSov-Hx4eJ2KEqyUmbwePSMHjqJxeKL8JeHnRWMhbnWRQPfePxwThrCq1WpjOtd73d5EWuaEDltH-QHoAeNQTPhXWlzeQy9g-xS6d1FiM6OBgSvwil09SCtEXWygtsBEggOn7GMNHNuJND-PTuL80wsYXrvlMo8oqoF0EuYQgWRfFsM0pb~gXXPRDjmyOgXDeeEmMhiw7cPPwA-uWiP6V-B6ap1jgFT-qsdyz~clwZWeGofYO8Yt9pKGktipeI4je9jhlclhofss2S7vSxbXwplyBe6zNoyOQ__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="33874684"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/33874684/The_metabolic_cost_of_flight_in_unrestrained_birds_J_Exp_Biol"><img alt="Research paper thumbnail of The metabolic cost of flight in unrestrained birds. J Exp Biol" class="work-thumbnail" src="https://attachments.academia-assets.com/53851392/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/33874684/The_metabolic_cost_of_flight_in_unrestrained_birds_J_Exp_Biol">The metabolic cost of flight in unrestrained birds. J Exp Biol</a></div><div class="wp-workCard_item"><span>Journal of Experimental Biology</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Oxygen consumption and carbon dioxide production were measured during flight in unrestrained star...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Oxygen consumption and carbon dioxide production were measured during flight in unrestrained starlings by a new method. Mean RQ after the first 30 min of flight was 0-69 ± 0-08 (± S.D.). Mean rate of carbon dioxide production was 19-7+ 2-2 ml CO 2 /min, which corresponds to a metabolic rate of 8-9 ± 1 W. Metabolic rate during flight did not change significantly over a range of air speeds from 8 to 18 m/s and birds would not fly at speeds outside of this range. Current theories of bird flight predict a large change in metabolic rate over the same range of speeds. Wingbeat frequency was constant at 12 ±0-5 Hz. Wingbeat amplitude reached a minimum at a speed of 14 m/s and increased at both higher and lower speeds. Angle between the body and horizontal was least at high speeds and increased at low speeds. As existing theories do not take into account the change of drag resulting from changes in body attitude, this may be a cause of the discrepancies between theory and observation.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="770d4ba0297c7e22ab8470149d9d2e00" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":53851392,"asset_id":33874684,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/53851392/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="33874684"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="33874684"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 33874684; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=33874684]").text(description); $(".js-view-count[data-work-id=33874684]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 33874684; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='33874684']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "770d4ba0297c7e22ab8470149d9d2e00" } } $('.js-work-strip[data-work-id=33874684]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":33874684,"title":"The metabolic cost of flight in unrestrained birds. 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</script> <div class="js-work-strip profile--work_container" data-work-id="33874676"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/33874676/Polyamines_in_Presence_of_an_unusually_high_osmotically_sensitive_pool_of_1_3_diaminopropane"><img alt="Research paper thumbnail of Polyamines in : Presence of an unusually high, osmotically sensitive pool of 1,3-diaminopropane" class="work-thumbnail" src="https://attachments.academia-assets.com/53851386/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/33874676/Polyamines_in_Presence_of_an_unusually_high_osmotically_sensitive_pool_of_1_3_diaminopropane">Polyamines in : Presence of an unusually high, osmotically sensitive pool of 1,3-diaminopropane</a></div><div class="wp-workCard_item"><span>Biochemical and Biophysical Research Communications</span><span>, 1984</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="2e0353ac73f86b441ab783f6a09acd1e" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":53851386,"asset_id":33874676,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/53851386/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="33874676"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="33874676"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 33874676; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="6015404"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/6015404/Intermittent_hypoxia_and_plasticity_of_respiratory_chemoreflexes_in_metamorphic_bullfrog_tadpoles"><img alt="Research paper thumbnail of Intermittent hypoxia and plasticity of respiratory chemoreflexes in metamorphic bullfrog tadpoles" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/6015404/Intermittent_hypoxia_and_plasticity_of_respiratory_chemoreflexes_in_metamorphic_bullfrog_tadpoles">Intermittent hypoxia and plasticity of respiratory chemoreflexes in metamorphic bullfrog tadpoles</a></div><div class="wp-workCard_item wp-workCard--coauthors"><span>by </span><span><a class="" data-click-track="profile-work-strip-authors" href="https://ulaval.academia.edu/JacquesLarochelle">Jacques Larochelle</a> and <a class="" data-click-track="profile-work-strip-authors" href="https://independent.academia.edu/RichardKinkead">Richard Kinkead</a></span></div><div class="wp-workCard_item"><span>Respiratory Physiology & Neurobiology</span><span>, 2003</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">We tested the hypothesis that intermittent hypoxia elicits plasticity in respiratory chemoreflexe...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">We tested the hypothesis that intermittent hypoxia elicits plasticity in respiratory chemoreflexes in bullfrog tadpoles. Metamorphic tadpoles (Taylor-Kollros stages XVI-XX) were subjected to intermittent hypoxia (PW(O(2))=45 Torr; 12 h/day) or constant normoxia (PW(O(2))=156 Torr) for 2 weeks before ventilatory responses to hypoxia and hypercarbia were measured. Buccal pressure changes were used to quantify the frequency and amplitude of movements associated with gill and lung ventilation. Morphometric assessment showed that intermittent hypoxia delayed development in comparison with controls. Oxygen consumption was enhanced in tadpoles subjected to intermittent hypoxia; however, this increase was not sufficient to affect basal ventilatory activity or the hypoxic ventilatory response. During acute hypercarbic exposure, tadpoles subjected to intermittent hypoxia showed (1) a greater decrease in gill ventilation frequency and (2) a greater increase in lung ventilation frequency than tadpoles maintained under control conditions. We conclude that intermittent hypoxia augments the responsiveness to hypercarbia, thereby promoting lung ventilation when animals face this stimulus. This manifestation of respiratory plasticity may reflect uncoupling between physiological and morphological development in the bi-modally breathing bullfrog tadpole.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="6015404"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="6015404"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 6015404; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=6015404]").text(description); $(".js-view-count[data-work-id=6015404]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 6015404; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='6015404']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=6015404]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":6015404,"title":"Intermittent hypoxia and plasticity of respiratory chemoreflexes in metamorphic bullfrog tadpoles","internal_url":"https://www.academia.edu/6015404/Intermittent_hypoxia_and_plasticity_of_respiratory_chemoreflexes_in_metamorphic_bullfrog_tadpoles","owner_id":8990311,"coauthors_can_edit":true,"owner":{"id":8990311,"first_name":"Jacques","middle_initials":"","last_name":"Larochelle","page_name":"JacquesLarochelle","domain_name":"ulaval","created_at":"2014-02-09T12:19:53.326-08:00","display_name":"Jacques Larochelle","url":"https://ulaval.academia.edu/JacquesLarochelle"},"attachments":[]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="6015397"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/6015397/Book_Review_Ecophysiology_of_the_Camelidae_and_Desert_Ruminants_Adaptations_of_Desert_Organisms_R_T_Wilson"><img alt="Research paper thumbnail of Book Review:Ecophysiology of the Camelidae and Desert Ruminants. Adaptations of Desert Organisms. R. T. Wilson" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/6015397/Book_Review_Ecophysiology_of_the_Camelidae_and_Desert_Ruminants_Adaptations_of_Desert_Organisms_R_T_Wilson">Book Review:Ecophysiology of the Camelidae and Desert Ruminants. Adaptations of Desert Organisms. R. T. Wilson</a></div><div class="wp-workCard_item"><span>Quarterly Review of Biology</span><span>, 1990</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="6015397"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="6015397"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 6015397; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=6015397]").text(description); $(".js-view-count[data-work-id=6015397]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 6015397; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='6015397']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=6015397]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":6015397,"title":"Book Review:Ecophysiology of the Camelidae and Desert Ruminants. Adaptations of Desert Organisms. R. T. Wilson","internal_url":"https://www.academia.edu/6015397/Book_Review_Ecophysiology_of_the_Camelidae_and_Desert_Ruminants_Adaptations_of_Desert_Organisms_R_T_Wilson","owner_id":8990311,"coauthors_can_edit":true,"owner":{"id":8990311,"first_name":"Jacques","middle_initials":"","last_name":"Larochelle","page_name":"JacquesLarochelle","domain_name":"ulaval","created_at":"2014-02-09T12:19:53.326-08:00","display_name":"Jacques Larochelle","url":"https://ulaval.academia.edu/JacquesLarochelle"},"attachments":[]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="6015395"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/6015395/THE_COOLING_POWER_OF_THE_PIGEON_HEAD"><img alt="Research paper thumbnail of THE COOLING POWER OF THE PIGEON HEAD" class="work-thumbnail" src="https://attachments.academia-assets.com/32959486/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/6015395/THE_COOLING_POWER_OF_THE_PIGEON_HEAD">THE COOLING POWER OF THE PIGEON HEAD</a></div><div class="wp-workCard_item wp-workCard--coauthors"><span>by </span><span><a class="" data-click-track="profile-work-strip-authors" href="https://ulaval.academia.edu/JacquesLarochelle">Jacques Larochelle</a> and <a class="" data-click-track="profile-work-strip-authors" href="https://independent.academia.edu/RobertStlaurent">Robert Stlaurent</a></span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Resting pigeons preheated to a stable core temperature of 43.2˚C, which is within the range of bo...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Resting pigeons preheated to a stable core temperature of 43.2˚C, which is within the range of body temperatures recorded during flight, were able to cool their body at high rates if their head and upper neck were exposed to an air stream at 23.5˚C. The heat dissipation capacity of the head and neck, estimated from measurements made at a wind speed (100 km h Ϫ1 ) corresponding to fast flight, was 9.8 W, or 4.5 times the resting heat production. Since the greater part of this capacity, about 8 W, was attributable to the inner surfaces of the mouth, ram ventilation of the buccal cavity appears to be an important mechanism for increasing evaporative heat loss during flight. Accordingly, wind-assisted mouth cooling should be utilized by resting pigeons, since exposure to a slight breeze (approximately 10 km h Ϫ1 ) could augment their dissipating power by an amount equivalent to their resting metabolic rate. It is concluded that beak opening, together with a source of convection other than panting and gular flutter, is required to exploit fully the heat dissipation capacity of the buccopharyngeal mucosa of birds.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="1129e18a013d8c163e9efb7bcd1d3ed4" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":32959486,"asset_id":6015395,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/32959486/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="6015395"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="6015395"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 6015395; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="6009454"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/6009454/AN_ALTERNATE_GROWTH_PATTERN_FOR_LAMINARIA_LONGICRURIS1_2"><img alt="Research paper thumbnail of AN ALTERNATE GROWTH PATTERN FOR LAMINARIA LONGICRURIS1,2" class="work-thumbnail" src="https://attachments.academia-assets.com/49055680/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/6009454/AN_ALTERNATE_GROWTH_PATTERN_FOR_LAMINARIA_LONGICRURIS1_2">AN ALTERNATE GROWTH PATTERN FOR LAMINARIA LONGICRURIS1,2</a></div><div class="wp-workCard_item"><span>Journal of Phycology</span><span>, 2008</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">A population of Laminaria longicruris de la Pylaie was followed for a year at Bic Island, Quebec,...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">A population of Laminaria longicruris de la Pylaie was followed for a year at Bic Island, Quebec, Canada where nutrient levels in the seawater were elevated throughout the year. Tagged kelp were measured each month for growth and analyzed for alginic acid, laminaran, mannitol, carbon, nitrogen, and nitrate. Maximum growth (3.5 cm · d−1) was observed in June, and minimal growth (0.18 cm · d−1) from December to February, when ice cover limited light levels. No reserves of carbon or nitrate were formed. Laminaran levels remained below 2.7% dry weight while tissue nitrate did not exceed 0.75 μmol · g−1 dry weight. Total carbon produced per plant was 40 g C · yr−1. Nutrient availability enables the kelp to take advantage of summer light and temperature conditions to grow rapidly.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="5e63acb2f0692062b7d11182ce99c236" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":49055680,"asset_id":6009454,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/49055680/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="6009454"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="6009454"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 6009454; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="6009449"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/6009449/The_effect_of_oxygen_availability_on_the_osmoregulatory_contribution_of_free_amino_acids_in_Acanthamoeba_castellanii"><img alt="Research paper thumbnail of The effect of oxygen availability on the osmoregulatory contribution of free amino acids in Acanthamoeba castellanii" class="work-thumbnail" src="https://attachments.academia-assets.com/49055690/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/6009449/The_effect_of_oxygen_availability_on_the_osmoregulatory_contribution_of_free_amino_acids_in_Acanthamoeba_castellanii">The effect of oxygen availability on the osmoregulatory contribution of free amino acids in Acanthamoeba castellanii</a></div><div class="wp-workCard_item"><span>Canadian Journal of Zoology-revue Canadienne De Zoologie</span><span>, 1986</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">1986. The effect of oxygen availability on the osmoregulatory contribution of free amino acids in...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">1986. The effect of oxygen availability on the osmoregulatory contribution of free amino acids in Acanthamoeba castellanii. Can. J . Zool. 64: 1430-1435 In Acanthamoeba, the availability of oxygen markedly affects the response to hyperosmotic (250 to 500 mosmol/kg water) or hypoosmotic (250 to 125 mosmol/kg water) stress. The short-term recovery of cell hydration after hyperosmotic shock was more rapid at a Po2 of 54 Torr (1 Torr = 133.322 Pa) than at 5 Torr, despite similar increases in the free amino acid content of the cell (2.3-to 2.4-fold). Under anoxia, the early response to both hyper-and hypo-osmotic stress resulted in osmometer-like cells and the osmoregulatory contribution of the free amino acid pool following hyperosmotic shock was totally abolished. After a hypoosmotic shock under anoxia, however, the decrease of the free amino acid pool, though much slower, was of the same magnitude as under aerobic conditions (1.8-to 2.5-fold). This was apparently the only osmoregulatory mechanism operative in the absence of oxygen. The free amino acid pool was qualitatively affected by the oxygenation level, with proline being more abundant at high Po2 and alanine being more important under low Po2 and anoxia. The oxygen consumption of the cells was essentially unaffected by osmotic stress and by the Po2 level. The osmotically induced changes in the free amino acid content of the cell involve flows of energy into and out of the free amino acid pool that appear considerable when compared with the energy available from oxidative metabolism. This suggests that de novo synthesis and complete oxidation have only a limited role in the supply and disposal of the free amino acids involved in osmotic regulation. GEOFFRION, Y., H. GUDERLEY et J. LAROCHELLE. 1986. The effect of oxygen availability on the osmoregulatory contribution of free amino acids in Acanthamoeba castellanii. Can. J . Zool. 64: 1430-1435. Chez Acanthamoeba, la disponibilitk de I'oxygkne exerce une influence considkrable sur la rCponse aux stress hyperosmotiques (250 a 500 mosmol/kg d'eau) et hypo-osmotiques (250 a 125 mosmol/kg d'eau). Ainsi, nous avons observC qu'aprks un choc hyperosmotique, la rkhydratation des cellules Ctait plus rapide a une Po2 de 54 Torr (1 Torr = 133.322 Pa) qu'a une Po2 de 5 Torr, malgrC de semblables augmentations du contenu cellulaire en acides aminCs libres dans les deux cas (2.3-2.4 fois). En anoxie, le comportement initial des cellules face aux deux types de chocs osmotiques Ctait de type osmomktre, et la contribution osmorCgulatrice des acides aminks libres, advenant un choc hyperosmotique, Ctait abolie. Cependant, aprks un choc hypo-osmotique, la baisse du contenu en acides aminks libres, bien que plus lente en anoxie, atteignait une valeur comparable a celles observkes en conditions aCrobies (1.8-2.5 fois) et semblait constituer le seul mCcanisme d'osmorCgulation encore fonctionnel. Le degrC d'oxygknation affectait Cgalement la composition du pool des acides aminks libres, la proline dominant a la Po2 la plus ClevCe alors que l'alanine s'avCrait plus importante a faible Po2 et en anoxie. Le fait de modifier I'oxygCnation et I'osmolalitC du milieu n'avait que peu d'effet sur la consommation d'oxygkne des amibes. Pourtant, les changements du contenu cellulaire en acides aminks libres provoquCs p a les chocs osmotiques impliquaient de grandes variations dans la valeur CnergCtique du pool. Ces variations, considCrables par rapport a 1'Cnergie produite par le mCtabolisme aCrobie, suggkrent une participation IimitCe de la synthkse de novo et de l'oxydation complkte a l'accumulation eta l'klimination des acides aminCs libres qui contribuent a 1'osmorCgulation.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="626193c200bab8a0ba523eadd4b198fa" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":49055690,"asset_id":6009449,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/49055690/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="6009449"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="6009449"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 6009449; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="6009448"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/6009448/Compartmentation_and_Activities_of_Enzymes_Involved_in_the_Metabolism_of_Amino_Acids_Implicated_in_Osmoregulatory_Mechanisms_in_Acanthamoeba_castellanii"><img alt="Research paper thumbnail of Compartmentation and Activities of Enzymes Involved in the Metabolism of Amino Acids Implicated in Osmoregulatory Mechanisms in Acanthamoeba castellanii" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/6009448/Compartmentation_and_Activities_of_Enzymes_Involved_in_the_Metabolism_of_Amino_Acids_Implicated_in_Osmoregulatory_Mechanisms_in_Acanthamoeba_castellanii">Compartmentation and Activities of Enzymes Involved in the Metabolism of Amino Acids Implicated in Osmoregulatory Mechanisms in Acanthamoeba castellanii</a></div><div class="wp-workCard_item"><span>Journal of Eukaryotic Microbiology</span><span>, 1988</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Glutamate dehydrogenase in Acanthamoeba castellanii is an NAD-dependent cytosolic enzyme. This is...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Glutamate dehydrogenase in Acanthamoeba castellanii is an NAD-dependent cytosolic enzyme. This is similar to glutamate dehydrogenases in Phycomycetes, but very different from the dual coenzyme-specific enzymes located in mitochondria in animals and in mitochondria and chloroplasts in higher plants. Pyrroline-5-carboxylate (P-5-C) reductase occurs also in the cytoplasm in A. castellanii and has very high affinities for L-P-5-C (Km= 12 μM) and NADH (Km= 15 μM). In contrast, ornithine aminotransferase and proline oxidase are mitochondrial enzymes. No proline-inhibited γ-glutamyl kinase was detected while an active glutamine synthetase was found in the cytosolic compartment. Evidence for a mitochondrial transport system for L-proline was obtained. Two possible pathways for proline biosynthesis in A. castellanii are discussed based on information obtained about activities and subcellular compartmentation of enzymes.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="6009448"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="6009448"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 6009448; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); 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} }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="6009447"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/6009447/The_free_amino_acid_contribution_to_osmotic_regulation_in_Acanthamoeba_castellanii"><img alt="Research paper thumbnail of The free amino acid contribution to osmotic regulation in Acanthamoeba castellanii" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/6009447/The_free_amino_acid_contribution_to_osmotic_regulation_in_Acanthamoeba_castellanii">The free amino acid contribution to osmotic regulation in Acanthamoeba castellanii</a></div><div class="wp-workCard_item"><span>Canadian Journal of Zoology-revue Canadienne De Zoologie</span><span>, 1984</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="6009447"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="6009447"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 6009447; 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Following hyperosmotic shock, the rapid appearance in the medium of previously ingested proline indicated a rapid release of pinosome contents induced by osmotic dehydration. Initially endocytotic uptake and protein synthesis were both markedly inhibited, but they recovered over the following hours. Total cell proteins decreased by 20% within 30 minutes after hyperosmotic stress, and this decrease was concomitant with a rapid accumulation of free ninhydrin-positive substances.Following a hyperosmotic shock, free alanine, glutamate, and proline transiently accumulated, in this sequence. Aminooxyacetate prevented the accumulation of alanine while greatly stimulating that of glutamate, but its effect on proline accumulation was small. In cells incubated with radioactive alanine, the accumulation of free alanine proceeded mostly from unlabeled precursors and coincided with a high rate of radioactive glutamate synthesis. This newly synthesized glutamate was extensively converted into proline, while proline synthesis from ornithine was barely stimulated. During acclimation to hyperosmotic conditions, osmoregulatory mechanisms in A. castellanii appear to rely only transiently on free amino acids, particularly on those whose access to main metabolic pathways is not allosterically regulated.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="afccdb825b64dcc7ed4cdff8fce51d76" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":49055678,"asset_id":6009446,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/49055678/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="6009446"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="6009446"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 6009446; 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