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Alexandra Cristina</title> <meta name="description" content="Search results for: Blaga Alexandra Cristina"> <meta name="keywords" content="Blaga Alexandra Cristina"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button 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action="https://publications.waset.org/abstracts/search"> <div id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="Blaga Alexandra Cristina"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 285</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Blaga Alexandra Cristina</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">285</span> Hybrid Fermentation System for Improvement of Ergosterol Biosynthesis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alexandra%20Tucaliuc">Alexandra Tucaliuc</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexandra%20C.%20Blaga"> Alexandra C. Blaga</a>, <a href="https://publications.waset.org/abstracts/search?q=Anca%20I.%20Galaction"> Anca I. Galaction</a>, <a href="https://publications.waset.org/abstracts/search?q=Lenuta%20Kloetzer"> Lenuta Kloetzer</a>, <a href="https://publications.waset.org/abstracts/search?q=Dan%20Cascaval"> Dan Cascaval</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Ergosterol (ergosta-5,7,22-trien-3β-ol), also known as provitamin D2, is the precursor of vitamin D2 (ergocalciferol), because it is converted under UV radiation to this vitamin. The natural sources of ergosterol are mainly the yeasts (Saccharomyces sp., Candida sp.), but it can be also found in fungus (Claviceps sp.) or plants (orchids). In the yeasts cells, ergosterol is accumulated in membranes, especially in free form in the plasma membrane, but also as esters with fatty acids in membrane lipids. The chemical synthesis of ergosterol does not represent an efficient method for its production, in these circumstances, the most attractive alternative for producing ergosterol at larger-scale remains the aerobic fermentation using S. cerevisiae on glucose or by-products from agriculture of food industry as substrates, in batch or fed-batch operating systems. The aim of this work is to analyze comparatively the influence of aeration efficiency on ergosterol production by S. cerevisiae in batch and fed-batch fermentations, by considering different levels of mixing intensity, aeration rate, and n-dodecane concentration. The effects of the studied factors are quantitatively described by means of the mathematical correlations proposed for each of the two fermentation systems, valid both for the absence and presence of oxygen-vector inside the broth. The experiments were carried out in a laboratory stirred bioreactor, provided with computer-controlled and recorded parameters. n-Dodecane was used as oxygen-vector and the ergosterol content inside the yeasts cells has been considered at the fermentation moment related to the maximum concentration of ergosterol, 9 hrs for batch process and 20 hrs for fed-batch one. Ergosterol biosynthesis is strongly dependent on the dissolved oxygen concentration. The hydrocarbon concentration exhibits a significant influence on ergosterol production mainly by accelerating the oxygen transfer rate. Regardless of n-dodecane addition, by maintaining the glucose concentration at a constant level in the fed-batch process, the amount of ergosterol accumulated into the yeasts cells has been almost tripled. In the presence of hydrocarbon, the ergosterol concentration increased by over 50%. The value of oxygen-vector concentration corresponding to the maximum level of ergosterol depends mainly on biomass concentration, due to its negative influences on broth viscosity and interfacial phenomena of air bubbles blockage through the adsorption of hydrocarbon droplets–yeast cells associations. Therefore, for the batch process, the maximum ergosterol amount was reached for 5% vol. n-dodecane, while for the fed-batch process for 10% vol. hydrocarbon. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bioreactors" title="bioreactors">bioreactors</a>, <a href="https://publications.waset.org/abstracts/search?q=ergosterol" title=" ergosterol"> ergosterol</a>, <a href="https://publications.waset.org/abstracts/search?q=fermentation" title=" fermentation"> fermentation</a>, <a href="https://publications.waset.org/abstracts/search?q=oxygen-vector" title=" oxygen-vector"> oxygen-vector</a> </p> <a href="https://publications.waset.org/abstracts/82746/hybrid-fermentation-system-for-improvement-of-ergosterol-biosynthesis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/82746.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">189</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">284</span> Selective Separation of Amino Acids by Reactive Extraction with Di-(2-Ethylhexyl) Phosphoric Acid</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alexandra%20C.%20Blaga">Alexandra C. Blaga</a>, <a href="https://publications.waset.org/abstracts/search?q=Dan%20Ca%C5%9Fcaval"> Dan Caşcaval</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexandra%20Tucaliuc"> Alexandra Tucaliuc</a>, <a href="https://publications.waset.org/abstracts/search?q=Madalina%20Po%C5%9Ftaru"> Madalina Poştaru</a>, <a href="https://publications.waset.org/abstracts/search?q=Anca%20I.%20Galaction"> Anca I. Galaction</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Amino acids are valuable chemical products used in in human foods, in animal feed additives and in the pharmaceutical field. Recently, there has been a noticeable rise of amino acids utilization throughout the world to include their use as raw materials in the production of various industrial chemicals: oil gelating agents (amino acid-based surfactants) to recover effluent oil in seas and rivers and poly(amino acids), which are attracting attention for biodegradable plastics manufacture. The amino acids can be obtained by biosynthesis or from protein hydrolysis, but their separation from the obtained mixtures can be challenging. In the last decades there has been a continuous interest in developing processes that will improve the selectivity and yield of downstream processing steps. The liquid-liquid extraction of amino acids (dissociated at any pH-value of the aqueous solutions) is possible only by using the reactive extraction technique, mainly with extractants of organophosphoric acid derivatives, high molecular weight amines and crown-ethers. The purpose of this study was to analyse the separation of nine amino acids of acidic character (l-aspartic acid, l-glutamic acid), basic character (l-histidine, l-lysine, l-arginine) and neutral character (l-glycine, l-tryptophan, l-cysteine, l-alanine) by reactive extraction with di-(2-ethylhexyl)phosphoric acid (D2EHPA) dissolved in butyl acetate. The results showed that the separation yield is controlled by the pH value of the aqueous phase: the reactive extraction of amino acids with D2EHPA is possible only if the amino acids exist in aqueous solution in their cationic forms (pH of aqueous phase below the isoeletric point). The studies for individual amino acids indicated the possibility of selectively separate different groups of amino acids with similar acidic properties as a function of aqueous solution pH-value: the maximum yields are reached for a pH domain of 2–3, then strongly decreasing with the pH increase. Thus, for acidic and neutral amino acids, the extraction becomes impossible at the isolelectric point (pHi) and for basic amino acids at a pH value lower than pHi, as a result of the carboxylic group dissociation. From the results obtained for the separation from the mixture of the nine amino acids, at different pH, it can be observed that all amino acids are extracted with different yields, for a pH domain of 1.5–3. Over this interval, the extract contains only the amino acids with neutral and basic character. For pH 5–6, only the neutral amino acids are extracted and for pH > 6 the extraction becomes impossible. Using this technique, the total separation of the following amino acids groups has been performed: neutral amino acids at pH 5–5.5, basic amino acids and l-cysteine at pH 4–4.5, l-histidine at pH 3–3.5 and acidic amino acids at pH 2–2.5. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=amino%20acids" title="amino acids">amino acids</a>, <a href="https://publications.waset.org/abstracts/search?q=di-%282-ethylhexyl%29%20phosphoric%20acid" title=" di-(2-ethylhexyl) phosphoric acid"> di-(2-ethylhexyl) phosphoric acid</a>, <a href="https://publications.waset.org/abstracts/search?q=reactive%20extraction" title=" reactive extraction"> reactive extraction</a>, <a href="https://publications.waset.org/abstracts/search?q=selective%20extraction" title=" selective extraction"> selective extraction</a> </p> <a href="https://publications.waset.org/abstracts/25016/selective-separation-of-amino-acids-by-reactive-extraction-with-di-2-ethylhexyl-phosphoric-acid" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/25016.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">431</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">283</span> Vitamin B9 Separation by Synergic Pertraction</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Blaga%20Alexandra%20Cristina">Blaga Alexandra Cristina</a>, <a href="https://publications.waset.org/abstracts/search?q=Kloetzer%20Lenuta"> Kloetzer Lenuta</a>, <a href="https://publications.waset.org/abstracts/search?q=Bompa%20Amalia%20Stela"> Bompa Amalia Stela</a>, <a href="https://publications.waset.org/abstracts/search?q=Galaction%20Anca%20Irina"> Galaction Anca Irina</a>, <a href="https://publications.waset.org/abstracts/search?q=Cascaval%20Dan"> Cascaval Dan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Vitamin B9 is an important member of vitamins B group, being a growth factor, important for making genetic material as DNA and RNA, red blood cells, for building muscle tissues, especially during periods of infancy, adolescence and pregnancy. Its production by biosynthesis is based on the high metabolic potential of mutant Bacillus subtilis, due to a superior biodisponibility compared to that obtained by chemical pathways. Pertraction, defined as the extraction and transport through liquid membranes consists in the transfer of a solute between two aqueous phases of different pH-values, phases that are separated by a solvent layer of various sizes. The pertraction efficiency and selectivity could be significantly enhanced by adding a carrier in the liquid membrane, such as organophosphoric compounds, long chain amines or crown-ethers etc., the separation process being called facilitated pertraction. The aim of the work is to determine the impact of the presence of two extractants/carriers in the bulk liquid membrane, i.e. di(2-ethylhexyl) phosphoric acid (D2EHPA) and lauryltrialkylmetilamine (Amberlite LA2) on the transport kinetics of vitamin B9. The experiments have been carried out using two pertraction equipments for a free liquid membrane or bulk liquid membrane. One pertraction cell consists on a U-shaped glass pipe (used for the dichloromethane membrane) and the second one is an H-shaped glass pipe (used for h-heptane), having 45 mm inner diameter of the total volume of 450 mL, the volume of each compartment being of 150 mL. The aqueous solutions are independently mixed by means of double blade stirrers with 6 mm diameter and 3 mm height, having the rotation speed of 500 rpm. In order to reach high diffusional rates through the solvent layer, the organic phase has been mixed with a similar stirrer, at a similar rotation speed (500 rpm). The area of mass transfer surface, both for extraction and for reextraction, was of 1.59x10-³ m2. The study on facilitated pertraction with the mixture of two carriers, namely D2EHPA and Amberlite LA-2, dissolved in two solvents with different polarities: n-heptane and dichloromethane, indicated the possibility to obtain the synergic effect. The synergism has been analyzed by considering the vitamin initial and final mass flows, as well as the permeability factors through liquid membrane. The synergic effect has been observed at low D2EHPA concentrations and high Amberlite LA-2 concentrations, being more important for the low-polar solvent (n-heptane). The results suggest that the mechanism of synergic pertraction consists on the reaction between the organophosphoric carrier and vitamin B9 at the interface between the feed and membrane phases, while the aminic carrier enhances the hydrophobicity of this compound by solvation. However, the formation of this complex reduced the reextraction rate and, consequently, affects the synergism related to the final mass flows and permeability factor. For describing the influences of carriers concentrations on the synergistic coefficients, some equations have been proposed by taking into account the vitamin mass flows or permeability factors, with an average deviations between 4.85% and 10.73%. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=pertraction" title="pertraction">pertraction</a>, <a href="https://publications.waset.org/abstracts/search?q=synergism" title=" synergism"> synergism</a>, <a href="https://publications.waset.org/abstracts/search?q=vitamin%20B9" title=" vitamin B9"> vitamin B9</a>, <a href="https://publications.waset.org/abstracts/search?q=Amberlite%20LA-2" title=" Amberlite LA-2"> Amberlite LA-2</a>, <a href="https://publications.waset.org/abstracts/search?q=di%282-ethylhexyl%29%20phosphoric%20acid" title=" di(2-ethylhexyl) phosphoric acid"> di(2-ethylhexyl) phosphoric acid</a> </p> <a href="https://publications.waset.org/abstracts/55101/vitamin-b9-separation-by-synergic-pertraction" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/55101.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">275</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">282</span> Nonconventional Method for Separation of Rosmarinic Acid: Synergic Extraction</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Lenuta%20Kloetzer">Lenuta Kloetzer</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexandra%20C.%20Blaga"> Alexandra C. Blaga</a>, <a href="https://publications.waset.org/abstracts/search?q=Dan%20Cascaval"> Dan Cascaval</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexandra%20Tucaliuc"> Alexandra Tucaliuc</a>, <a href="https://publications.waset.org/abstracts/search?q=Anca%20I.%20Galaction"> Anca I. Galaction</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Rosmarinic acid, an ester of caffeic acid and 3-(3,4-dihydroxyphenyl) lactic acid, is considered a valuable compound for the pharmaceutical and cosmetic industries due to its antimicrobial, antioxidant, antiviral, anti-allergic, and anti-inflammatory effects. It can be obtained by extraction from vegetable or animal materials, by chemical synthesis and biosynthesis. Indifferent of the method used for rosmarinic acid production, the separation and purification process implies high amount of raw materials and laborious stages leading to high cost for and limitations of the separation technology. This study focused on separation of rosmarinic acid by synergic reactive extraction with a mixture of two extractants, one acidic (acid di-(2ethylhexyl) phosphoric acid, D2EHPA) and one with basic character (Amberlite LA-2). The studies were performed in experimental equipment consisting of an extraction column where the phases’ mixing was made by mean of a perforated disk with 45 mm diameter and 20% free section, maintained at the initial contact interface between the aqueous and organic phases. The vibrations had a frequency of 50 s⁻¹ and 5 mm amplitude. The extraction was carried out in two solvents with different dielectric constants (n-heptane and dichloromethane) in which the extractants mixture of varying concentration was dissolved. The pH-value of initial aqueous solution was varied between 1 and 7. The efficiency of the studied extraction systems was quantified by distribution and synergic coefficients. For calculating these parameters, the rosmarinic acid concentration in the initial aqueous solution and in the raffinate have been measured by HPLC. The influences of extractants concentrations and solvent polarity on the efficiency of rosmarinic acid separation by synergic extraction with a mixture of Amberlite LA-2 and D2EHPA have been analyzed. In the reactive extraction system with a constant concentration of Amberlite LA-2 in the organic phase, the increase of D2EHPA concentration leads to decrease of the synergic coefficient. This is because the increase of D2EHPA concentration prevents the formation of amine adducts and, consequently, affects the hydrophobicity of the interfacial complex with rosmarinic acid. For these reasons, the diminution of synergic coefficient is more important for dichloromethane. By maintaining a constant value of D2EHPA concentration and increasing the concentration of Amberlite LA-2, the synergic coefficient could become higher than 1, its highest values being reached for n-heptane. Depending on the solvent polarity and D2EHPA amount in the solvent phase, the synergic effect is observed for Amberlite LA-2 concentrations over 20 g/l dissolved in n-heptane. Thus, by increasing the concentration of D2EHPA from 5 to 40 g/l, the minimum concentration value of Amberlite LA-2 corresponding to synergism increases from 20 to 40 g/l for the solvent with lower polarity, namely, n-heptane, while there is no synergic effect recorded for dichloromethane. By analysing the influences of the main factors (organic phase polarity, extractant concentration in the mixture) on the efficiency of synergic extraction of rosmarinic acid, the most important synergic effect was found to correspond to the extractants mixture containing 5 g/l D2EHPA and 40 g/l Amberlite LA-2 dissolved in n-heptane. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Amberlite%20LA-2" title="Amberlite LA-2">Amberlite LA-2</a>, <a href="https://publications.waset.org/abstracts/search?q=di%282-ethylhexyl%29%20phosphoric%20acid" title=" di(2-ethylhexyl) phosphoric acid"> di(2-ethylhexyl) phosphoric acid</a>, <a href="https://publications.waset.org/abstracts/search?q=rosmarinic%20acid" title=" rosmarinic acid"> rosmarinic acid</a>, <a href="https://publications.waset.org/abstracts/search?q=synergic%20effect" title=" synergic effect"> synergic effect</a> </p> <a href="https://publications.waset.org/abstracts/82741/nonconventional-method-for-separation-of-rosmarinic-acid-synergic-extraction" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/82741.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">290</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">281</span> Nursing Workers’ Capacity of Resilience at a Psychiatric Hospital in Brazil</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Cheila%20Cristina%20Leonardo%20Oliveira%20Gaioli">Cheila Cristina Leonardo Oliveira Gaioli</a>, <a href="https://publications.waset.org/abstracts/search?q=Fernanda%20Ludmilla%20Rossi%20Rocha"> Fernanda Ludmilla Rossi Rocha</a>, <a href="https://publications.waset.org/abstracts/search?q=Sandra%20Cristina%20Pillon"> Sandra Cristina Pillon</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Resilience is a psychological process that facilitates the maintenance of health, developed in response to numerous existing stressors in daily life. Furthermore, resilience can be described as the ability which allows an individual or group to hold up well before unfavorable situations. This study aimed to identify nursing workers’ resilience at a psychiatric hospital in Brazil. This is an exploratory research with quantitative data approach. The sample consisted of 56 workers, using the Resilience Scale. Of the 56 subjects, 45 (80.4%) were women; 22 (39.2%) were 20- to 40-years-old and 30 (53.6%) were 41- to 60-years-old; 11 (19.6%) were nurses and 45 (80.4%) were technicians or nursing assistants. The results also showed that 50% of subjects showed a high resilience degree and 42.9% an average resilience degree. Thus, it was found that workers seek to develop protective factors in coping with a work environment that does not value the individual subjectivity and does not allow professional development, discouraging workers. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=health%20promotion" title="health promotion">health promotion</a>, <a href="https://publications.waset.org/abstracts/search?q=nursing" title=" nursing"> nursing</a>, <a href="https://publications.waset.org/abstracts/search?q=occupational%20health" title=" occupational health"> occupational health</a>, <a href="https://publications.waset.org/abstracts/search?q=resilience" title=" resilience"> resilience</a> </p> <a href="https://publications.waset.org/abstracts/26323/nursing-workers-capacity-of-resilience-at-a-psychiatric-hospital-in-brazil" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/26323.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">518</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">280</span> Hydroxyapatite-Chitosan Composites for Tissue Engineering Applications</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Georgeta%20Voicu">Georgeta Voicu</a>, <a href="https://publications.waset.org/abstracts/search?q=Cristina%20Daniela%20Ghitulica"> Cristina Daniela Ghitulica</a>, <a href="https://publications.waset.org/abstracts/search?q=Andreia%20Cucuruz"> Andreia Cucuruz</a>, <a href="https://publications.waset.org/abstracts/search?q=Cristina%20Busuioc"> Cristina Busuioc</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In the field of tissue engineering, the compositional and microstructural features of the employed materials play an important role, with implications on the mechanical and biological behaviour of the medical devices. In this context, the development of apatite - natural biopolymer composites represents a choice of many scientific groups. Thus, hydroxyapatite powders were synthesized by a wet method, namely co-precipitation, starting from high purity reagents (CaO, MgO, and H3PO4). Moreover, the substitution of calcium with magnesium have been approached, in the 5 - 10 wt.% range. Afterward, the phosphate powders were integrated in two types of composites with chitosan, different from morphological point of view. First, 3D porous scaffolds were obtained by a freeze-drying procedure. Second, uniform, compact films were achieved by film casting. The influence of chitosan molecular weight (low, medium and high), as well as apatite powder to polymer ratio (1:1 and 1:2) on the morphological properties, were analysed in detail. In conclusion, the reported biocomposites, prepared by a straightforward route are suitable for bone substitution or repairing applications. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bone%20reconstruction" title="bone reconstruction">bone reconstruction</a>, <a href="https://publications.waset.org/abstracts/search?q=chitosan" title=" chitosan"> chitosan</a>, <a href="https://publications.waset.org/abstracts/search?q=composite%20scaffolds" title=" composite scaffolds"> composite scaffolds</a>, <a href="https://publications.waset.org/abstracts/search?q=hydroxyapatite" title=" hydroxyapatite"> hydroxyapatite</a> </p> <a href="https://publications.waset.org/abstracts/62705/hydroxyapatite-chitosan-composites-for-tissue-engineering-applications" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/62705.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">322</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">279</span> Synthesis of Tricalcium Phosphate Substituted with Magnesium Ions for Bone Regeneration</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Andreia%20Cucuruz">Andreia Cucuruz</a>, <a href="https://publications.waset.org/abstracts/search?q=Cristina%20Daniela%20Ghitulica"> Cristina Daniela Ghitulica</a>, <a href="https://publications.waset.org/abstracts/search?q=Georgeta%20Voicu"> Georgeta Voicu</a>, <a href="https://publications.waset.org/abstracts/search?q=Cristina%20Busuioc"> Cristina Busuioc</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Ceramics based on calcium phosphates have lately increased attention for tissue engineering because they can be used as substitute bones or for bone regeneration since they mimic very well the nanostructure of tough bone tissue, but also because of other advantages such as a very good biocompatibility and osseointegration. This study aims the preparation and characterization of ceramic materials on the basis of TCP (Ca₃(PO₄)₂), within which calcium ions are substituted by magnesium ions (Mg²⁺) in order to improve the regenerative properties of these materials. TCP-Mg material was synthesized by chemical precipitation method using calcium oxide (CaO) and phosphoric acid (H₃PO₄) as precursors. The objective was to obtain powders with different concentrations of Mg in order to analyze the effect of magnesium ions on the physicochemical properties of phosphate ceramics and in vitro degradation in simulated biological fluid (SBF). Ceramic powders were characterized in vitro but also from the compositional and microstructural point of view. TCP_Mg powders were prepared through wet chemical method from calcium oxide (CaO), magnesium oxide nanopowder (MgO < 50 nm particle size (BET) Sigma Aldrich), phosphoric acid (H₃PO₄ - 85 wt.% in H₂O, 99.99% trace metals basis - Sigma Aldrich). In order to determine the quantities of raw materials, calculations were performed to obtain HAp with Ca/P ratio of 1.5. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bone%20regeneration" title="bone regeneration">bone regeneration</a>, <a href="https://publications.waset.org/abstracts/search?q=magnesium%20substitution" title=" magnesium substitution"> magnesium substitution</a>, <a href="https://publications.waset.org/abstracts/search?q=tricalcium%20phosphate" title=" tricalcium phosphate"> tricalcium phosphate</a>, <a href="https://publications.waset.org/abstracts/search?q=tissue%20engineering" title=" tissue engineering"> tissue engineering</a> </p> <a href="https://publications.waset.org/abstracts/62756/synthesis-of-tricalcium-phosphate-substituted-with-magnesium-ions-for-bone-regeneration" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/62756.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">346</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">278</span> Ecosystem Model for Environmental Applications</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Cristina%20Schreiner">Cristina Schreiner</a>, <a href="https://publications.waset.org/abstracts/search?q=Romeo%20Ciobanu"> Romeo Ciobanu</a>, <a href="https://publications.waset.org/abstracts/search?q=Marius%20Pislaru"> Marius Pislaru</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper aims to build a system based on fuzzy models that can be implemented in the assessment of ecological systems, to determine appropriate methods of action for reducing adverse effects on environmental and implicit the population. The model proposed provides new perspective for environmental assessment, and it can be used as a practical instrument for decision-making. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ecosystem%20model" title="ecosystem model">ecosystem model</a>, <a href="https://publications.waset.org/abstracts/search?q=environmental%20security" title=" environmental security"> environmental security</a>, <a href="https://publications.waset.org/abstracts/search?q=fuzzy%20logic" title=" fuzzy logic"> fuzzy logic</a>, <a href="https://publications.waset.org/abstracts/search?q=sustainability%20of%20habitable%20regions" title=" sustainability of habitable regions"> sustainability of habitable regions</a> </p> <a href="https://publications.waset.org/abstracts/2841/ecosystem-model-for-environmental-applications" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/2841.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">420</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">277</span> Designing and Enacting an Adjunct Faculty Self-Study of Teaching Community </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Anastasia%20P.%20Samaras">Anastasia P. Samaras</a>, <a href="https://publications.waset.org/abstracts/search?q=Allison%20Ward-Parsons"> Allison Ward-Parsons</a>, <a href="https://publications.waset.org/abstracts/search?q=Beth%20Dalbec"> Beth Dalbec</a>, <a href="https://publications.waset.org/abstracts/search?q=Paula%20Cristina%20Azevedo"> Paula Cristina Azevedo</a>, <a href="https://publications.waset.org/abstracts/search?q=Anya%20Evmenova"> Anya Evmenova</a>, <a href="https://publications.waset.org/abstracts/search?q=Arvinder%20Johri"> Arvinder Johri</a>, <a href="https://publications.waset.org/abstracts/search?q=Lynne%20Scott%20Constantine"> Lynne Scott Constantine</a>, <a href="https://publications.waset.org/abstracts/search?q=Lesley%20Smith"> Lesley Smith </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Two cycles of qualitative data were collected. Cycle One sources included participant survey results, participant postings on Blackboard forums, facilitator memos, and meeting notes as well as reflections and notes from whole-group meetings. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=adjunct%20faculty" title="adjunct faculty">adjunct faculty</a>, <a href="https://publications.waset.org/abstracts/search?q=professional%20development" title=" professional development"> professional development</a>, <a href="https://publications.waset.org/abstracts/search?q=self-study%20methodology" title=" self-study methodology"> self-study methodology</a>, <a href="https://publications.waset.org/abstracts/search?q=teaching" title=" teaching"> teaching</a> </p> <a href="https://publications.waset.org/abstracts/112237/designing-and-enacting-an-adjunct-faculty-self-study-of-teaching-community" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/112237.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">162</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">276</span> The Impact of Vocal and Physical Attractiveness on the Employment Interview</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alexandra%20Roy">Alexandra Roy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This research examines how physical and vocal attractiveness affect impressions of an applicant and whether these impressions are affected by gender or job type. Findings, based on two samples, indicate that individuals with less attractiveness voice and physical appearance were viewed as less suitable job applicants and as possessing more negative characteristics than those others. These negative impressions were pervasive and unaffected by either applicant gender or job type. Specifically, we found that job candidates with an attractive voice or physique were perceived as more extroverted, less agreeable, less conscientious, less trustworthy less competent, less sociable and less recruitable. Results are robust to various sensitivity checks. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=discrimination" title="discrimination">discrimination</a>, <a href="https://publications.waset.org/abstracts/search?q=nonverbal" title=" nonverbal"> nonverbal</a>, <a href="https://publications.waset.org/abstracts/search?q=hiring" title=" hiring"> hiring</a>, <a href="https://publications.waset.org/abstracts/search?q=attractiveness" title=" attractiveness"> attractiveness</a> </p> <a href="https://publications.waset.org/abstracts/82202/the-impact-of-vocal-and-physical-attractiveness-on-the-employment-interview" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/82202.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">225</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">275</span> A Test to Express Diagnostic Cohesion of Football Team </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alexandra%20O.%20Savinkina">Alexandra O. Savinkina </a> </p> <p class="card-text"><strong>Abstract:</strong></p> We proposed to assess the cohesion of a football team by its subject-goal and subject-value unity according to the A.V. Petrovsky theory. Goal unity was measured by the degree of compliance of the priority targets for various players in the team. Values were estimated by the coincidence of the ideas about a perfect football player. On the basis of the provisional diagnosis of the six teams, we had made the lists of goals and values. The tests were piloted on 35 football teams. The results allowed not only to compare quantitatively the cohesion of the different teams, but also to identify subgroups within the team. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cohesion" title="cohesion">cohesion</a>, <a href="https://publications.waset.org/abstracts/search?q=football" title=" football"> football</a>, <a href="https://publications.waset.org/abstracts/search?q=psychodiagnostic" title=" psychodiagnostic"> psychodiagnostic</a>, <a href="https://publications.waset.org/abstracts/search?q=soccer" title=" soccer"> soccer</a>, <a href="https://publications.waset.org/abstracts/search?q=sports%20team" title=" sports team"> sports team</a>, <a href="https://publications.waset.org/abstracts/search?q=value-orientation%20unity" title=" value-orientation unity"> value-orientation unity</a> </p> <a href="https://publications.waset.org/abstracts/58994/a-test-to-express-diagnostic-cohesion-of-football-team" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/58994.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">284</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">274</span> How Unpleasant Emotions, Morals and Normative Beliefs of Severity Relate to Cyberbullying Intentions</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Paula%20C.%20Ferreira">Paula C. Ferreira</a>, <a href="https://publications.waset.org/abstracts/search?q=Ana%20Margarida%20Veiga%20Sim%C3%A3o"> Ana Margarida Veiga Simão</a>, <a href="https://publications.waset.org/abstracts/search?q=N%C3%A1dia%20Pereira"> Nádia Pereira</a>, <a href="https://publications.waset.org/abstracts/search?q=Aristides%20Ferreira"> Aristides Ferreira</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexandra%20Marques%20Pinto"> Alexandra Marques Pinto</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexandra%20Barros"> Alexandra Barros</a>, <a href="https://publications.waset.org/abstracts/search?q=Vitor%20Martinho"> Vitor Martinho</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Cyberbullying is a phenomenon of worldwide concern regarding children and adolescents’ mental health and risk behavior. Bystanders of this phenomenon can help diminish the incidence of this phenomenon if they engage in pro-social behavior. However, different social-cognitive and affective bystander reactions may surface because of the lack of contextual information and emotional cues in cyberbullying situations. Hence, this study investigated how cyberbullying bystanders’ unpleasant emotions could be related to their personal moral beliefs and their behavioral intentions to cyberbully or defend the victim. It also proposed to investigate how their normative beliefs of perceived severity about cyberbullying behavior could be related to their personal moral beliefs and their behavioral intentions. Three groups of adolescents participated in this study, namely a first of group 402 students (5th – 12th graders; Mage = 13.12; SD = 2.19; 55.7% girls) to compute explorative factorial analyses of the instruments used; a second group of 676 students (5th – 12th graders; Mage = 14.10; SD = 2.74; 55.5% were boys) to run confirmatory factor analyses; and a third group (N = 397; 5th – 12th graders; Mage = 13.88 years; SD = 1.45; 55.5% girls) to perform the main analyses to test the research hypotheses. Self-report measures were used, such as the Personal moral beliefs about cyberbullying behavior questionnaire, the Normative beliefs of perceived severity about cyberbullying behavior questionnaire, the Unpleasant emotions about cyberbullying incidents questionnaires, and the Bystanders’ behavioral intentions in cyberbullying situations questionnaires. Path analysis results revealed that unpleasant emotions were mediators of the relationship between adolescent cyberbullying bystanders’ personal moral beliefs and their intentions to help the victims in cyberbullying situations. Moreover, adolescent cyberbullying bystanders’ normative beliefs of gravity were mediators of the relationship between their personal moral beliefs and their intentions to cyberbully others. These findings provide insights for the development of prevention and intervention programs that promote social and emotional learning strategies as a means to prevent and intervene in cyberbullying. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cyberbullying" title="cyberbullying">cyberbullying</a>, <a href="https://publications.waset.org/abstracts/search?q=normative%20beliefs%20of%20perceived%20severity" title=" normative beliefs of perceived severity"> normative beliefs of perceived severity</a>, <a href="https://publications.waset.org/abstracts/search?q=personal%20moral%20beliefs" title=" personal moral beliefs"> personal moral beliefs</a>, <a href="https://publications.waset.org/abstracts/search?q=unpleasant%20emotions" title=" unpleasant emotions"> unpleasant emotions</a> </p> <a href="https://publications.waset.org/abstracts/142308/how-unpleasant-emotions-morals-and-normative-beliefs-of-severity-relate-to-cyberbullying-intentions" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/142308.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">217</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">273</span> Contemporary Female Composers in Bulgaria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Stanimira%20Ntermentzieva">Stanimira Ntermentzieva</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Gender studies in post-communist Eastern Europe emerged in the early 1990s after the collapse of the communist regime. It can be explained by a series of cultural and political factors. However, Bulgarian female composers’ contribution to Western art music has not been studied. This field shows us some aspects of the impact of globalization on gender issues. This paper outlines the female composers in the establishment of the modern Bulgarian state and society. It is dedicated to the Bulgarian award-winning female composers who studied in Western European and American universities in the 1990s. Many of them migrated to these regions as part of a great migration in which Bulgaria lost 2.3 to three million of its population and strived to modernize Bulgarian music. Nowadays, the Union of Bulgarian Composers has 262 members, but only 19 of them are women. The Grammy-awarded Penka Kouneva (b. 1967) is one of the few female composers in Hollywood. She composed and orchestrated film scores, music for video games and television. Anna-Maria Ravnopolska-Dean (b. 1960) is a Bulgarian/American harpist, arranger, composer, pedagogue and TV host. She wrote pieces for harp and chamber ensembles. Maria Panayotova (b. 1976) studied composition in the USA. Alexandra Fol (b. 1981) and Vania Angelova (b. 1954) work in Canada and are recipients of grants from the Canada Council for the Arts and the Bulgarian Ministry of Culture, among others. Afroditi Katmeridou, born in Bulgaria in 1956 by Greek parents, was the first woman who wrote electroacoustic music. One of the well-known contemporary composers is the British/Bulgarian Dobrinka Tabakova (b. 1980). She moved with her family to the United Kingdom when she was 11 and studied Composition at Guildhall School of Music and Drama in London. Her album String Paths was nominated for a Grammy award. Many female composers made a successful career in EU countries: Albena Petrovic-Vratchanska (Luxemburg), Yuliana Tochkova-Patrouilleau (France), Dariana Kumanova (Italy), Tveta Dimitrova (Austria), Ivajla Kirova (Germany), Alexandra Karastoyanova-Hermentin (Austria) and more. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=balgarian%20music" title="balgarian music">balgarian music</a>, <a href="https://publications.waset.org/abstracts/search?q=female%20composers" title=" female composers"> female composers</a>, <a href="https://publications.waset.org/abstracts/search?q=gender%20studies" title=" gender studies"> gender studies</a>, <a href="https://publications.waset.org/abstracts/search?q=western%20art%20music" title=" western art music"> western art music</a>, <a href="https://publications.waset.org/abstracts/search?q=migration" title=" migration"> migration</a> </p> <a href="https://publications.waset.org/abstracts/171069/contemporary-female-composers-in-bulgaria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/171069.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">86</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">272</span> Design and Implementation of Remote Control Application for Elderly People Who Live Alone</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Cristina%20Nieves%20Perdomo%20Delgado">Cristina Nieves Perdomo Delgado</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The study consists of the design and use of an application for cell phones called “Me Cuido” that consists of remote control of elderly people who live alone with their families. The objective of the study is to analyze the usability of the application by 40-year-olds using the Questionnaire for User Interaction Satisfaction (QUIS) method. The results highlight that the application has a design adapted to the elderly and that it is easy to use and understand. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=design" title="design">design</a>, <a href="https://publications.waset.org/abstracts/search?q=assistive%20technology" title=" assistive technology"> assistive technology</a>, <a href="https://publications.waset.org/abstracts/search?q=elderly%20people" title=" elderly people"> elderly people</a>, <a href="https://publications.waset.org/abstracts/search?q=independence" title=" independence"> independence</a> </p> <a href="https://publications.waset.org/abstracts/138538/design-and-implementation-of-remote-control-application-for-elderly-people-who-live-alone" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/138538.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">250</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">271</span> Baring Witness, Bearing Withness: Paradoxes of Testimony in J.M. Coetzee’s Waiting for the Barbarians</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alexandra%20Sweny">Alexandra Sweny</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper contends with the intersection between the act of witnessing and the act of reading in order to consider the relevance of literary testimony and fiction as tools for postcolonial readings of history. J. M. Coetzee's Waiting for the Barbarians elucidates what Primo Levi deems the 'paradoxical' task of testimony: that suffering can only be fully narrated by the sufferer themselves, whose voice and narrative capacity is often foreclosed by the very extent of their trauma. By examining the fictional Magistrate's position as both a reader and translator of history, this paper posits Waiting for the Barbarians as an ethical command against the appropriation of trauma. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ethical%20criticism" title="ethical criticism">ethical criticism</a>, <a href="https://publications.waset.org/abstracts/search?q=limit-experience" title=" limit-experience"> limit-experience</a>, <a href="https://publications.waset.org/abstracts/search?q=postcolonialism" title=" postcolonialism"> postcolonialism</a>, <a href="https://publications.waset.org/abstracts/search?q=psychic%20trauma%20in%20literature" title=" psychic trauma in literature"> psychic trauma in literature</a>, <a href="https://publications.waset.org/abstracts/search?q=testimony" title=" testimony"> testimony</a> </p> <a href="https://publications.waset.org/abstracts/131706/baring-witness-bearing-withness-paradoxes-of-testimony-in-jm-coetzees-waiting-for-the-barbarians" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/131706.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">150</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">270</span> Public Policy and Sexuality Education for Youth with Disabilities: Impact on Sexual Behavior and Outcomes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alexandra%20M.%20Kriofske%20Mainella">Alexandra M. Kriofske Mainella</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper will examine the need for more aggressive public policies around bodily, reproductive and sexual health education for young people with disabilities in the United States. This paper will consider the policies around sexuality education for students in the United States and the recommendation for national standards around sexuality education. We will investigate the intersection of these policies and recommendations for students with disabilities and the Individuals with Disabilities Education Act (IDEA): what this means for students with disabilities’ access to comprehensive sexuality education and how it affects their behaviors and outcomes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=disability" title="disability">disability</a>, <a href="https://publications.waset.org/abstracts/search?q=sexuality" title=" sexuality"> sexuality</a>, <a href="https://publications.waset.org/abstracts/search?q=education" title=" education"> education</a>, <a href="https://publications.waset.org/abstracts/search?q=policy" title=" policy"> policy</a> </p> <a href="https://publications.waset.org/abstracts/11108/public-policy-and-sexuality-education-for-youth-with-disabilities-impact-on-sexual-behavior-and-outcomes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/11108.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">437</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">269</span> PYTHEIA: A Scale for Assessing Rehabilitation and Assistive Robotics</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yiannis%20Koumpouros">Yiannis Koumpouros</a>, <a href="https://publications.waset.org/abstracts/search?q=Effie%20Papageorgiou"> Effie Papageorgiou</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexandra%20Karavasili"> Alexandra Karavasili</a>, <a href="https://publications.waset.org/abstracts/search?q=Foteini%20Koureta"> Foteini Koureta</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The objective of the present study was to develop a scale called PYTHEIA. The PYTHEIA is a self-reported measure for the assessment of rehabilitation and assistive robotics and other assistive technology devices. The development of PYTHEIA faced the absence of a valid instrument that can be used to evaluate the assistive robotic devices both as a whole, as well as any of their individual components or functionalities implemented. According to the results presented, PYTHEIA is a valid and reliable scale able to be applied to different target groups for the subjective evaluation of various assistive technology devices. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=rehabilitation" title="rehabilitation">rehabilitation</a>, <a href="https://publications.waset.org/abstracts/search?q=assistive%20technology" title=" assistive technology"> assistive technology</a>, <a href="https://publications.waset.org/abstracts/search?q=assistive%20robots" title=" assistive robots"> assistive robots</a>, <a href="https://publications.waset.org/abstracts/search?q=rehabilitation%20robots" title=" rehabilitation robots"> rehabilitation robots</a>, <a href="https://publications.waset.org/abstracts/search?q=scale" title=" scale"> scale</a>, <a href="https://publications.waset.org/abstracts/search?q=psychometric%20test" title=" psychometric test"> psychometric test</a>, <a href="https://publications.waset.org/abstracts/search?q=assessment" title=" assessment"> assessment</a>, <a href="https://publications.waset.org/abstracts/search?q=validation" title=" validation"> validation</a>, <a href="https://publications.waset.org/abstracts/search?q=user%20satisfaction" title=" user satisfaction"> user satisfaction</a> </p> <a href="https://publications.waset.org/abstracts/52058/pytheia-a-scale-for-assessing-rehabilitation-and-assistive-robotics" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/52058.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">312</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">268</span> Architectural Heritage of Southern Portugal: Disruptive Practices and Sustainability Plans for its Preservation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Patr%C3%ADcia%20Alexandra%20Rodrigues%20Monteiro">Patrícia Alexandra Rodrigues Monteiro</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The way modern societies relate with their architectural heritage has become increasingly difficult. This fact is clearer in historic centres of Portuguese peripheral cities or villages, constantly on the balance between its growth needs and the restrictions imposed by the policies for the built heritage preservation. Nowadays, gentrification phenomenon has levelled the differences between architecture, from north to south of the country, under false pretences of modernity and promises of better living conditions for local populations who inhabit historic centres. With this essay, we will address some of the main problems of southern Portugal’s historic centres, reflecting on the concept of sustainability which, also in this context, has acquired an unavoidable relevance. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=architecture" title="architecture">architecture</a>, <a href="https://publications.waset.org/abstracts/search?q=art" title=" art"> art</a>, <a href="https://publications.waset.org/abstracts/search?q=heritage" title=" heritage"> heritage</a>, <a href="https://publications.waset.org/abstracts/search?q=portugal" title=" portugal"> portugal</a> </p> <a href="https://publications.waset.org/abstracts/146659/architectural-heritage-of-southern-portugal-disruptive-practices-and-sustainability-plans-for-its-preservation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/146659.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">174</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">267</span> Discrimination during a Resume Audit: The Impact of Job Context in Hiring</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alexandra%20Roy">Alexandra Roy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Building on literature on cognitive matching and social categorization and using the correspondence testing method, we test the interaction effect of person characteristics (Gender with physical attractiveness) and job context (client contact, industry status, coworker contact). As expected, while findings show a strong impact of gender with beauty on hiring chances, job context characteristics have also a significant overall effect of this hiring outcome. Moreover, the rate of positive responses varies according some of the recruiter’s characteristics. Results are robust to various sensitivity checks. Implications of the results, limitations of the study, and directions for future research are discussed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=correspondence%20testing" title="correspondence testing">correspondence testing</a>, <a href="https://publications.waset.org/abstracts/search?q=discrimination" title=" discrimination"> discrimination</a>, <a href="https://publications.waset.org/abstracts/search?q=hiring" title=" hiring"> hiring</a>, <a href="https://publications.waset.org/abstracts/search?q=physical%20attractiveness" title=" physical attractiveness"> physical attractiveness</a> </p> <a href="https://publications.waset.org/abstracts/77313/discrimination-during-a-resume-audit-the-impact-of-job-context-in-hiring" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/77313.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">209</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">266</span> Fluorescence Gold Nanoparticles: Sensing Properties and Cytotoxicity Studies in MCF-7 Human Breast Cancer Cells</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Cristina%20N%C3%BA%C3%B1ez">Cristina Núñez</a>, <a href="https://publications.waset.org/abstracts/search?q=Rufina%20Bastida"> Rufina Bastida</a>, <a href="https://publications.waset.org/abstracts/search?q=Elena%20Labisbal"> Elena Labisbal</a>, <a href="https://publications.waset.org/abstracts/search?q=Alejandro%20Mac%C3%ADas"> Alejandro Macías</a>, <a href="https://publications.waset.org/abstracts/search?q=Mar%C3%ADa%20T.%20Pereira"> María T. Pereira</a>, <a href="https://publications.waset.org/abstracts/search?q=Jos%C3%A9%20M.%20Vila"> José M. Vila</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A highly selective quinoline-based fluorescent sensor L was designed in order to functionalize gold nanoparticles (GNPs@L). The cytotoxicity of compound L and GNPs@L on the MCF-7 breast cancer cells was explored and it was observed that L and GNPs@L compounds induced apoptosis in MCF-7 cancer cells. The cellular uptake of the hybrid system GNPs@L was studied using confocal laser scanning microscopy (CLSM). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cytotoxicity" title="cytotoxicity">cytotoxicity</a>, <a href="https://publications.waset.org/abstracts/search?q=fluorescent%20probes" title=" fluorescent probes"> fluorescent probes</a>, <a href="https://publications.waset.org/abstracts/search?q=nanoparticles" title=" nanoparticles"> nanoparticles</a>, <a href="https://publications.waset.org/abstracts/search?q=quinoline" title=" quinoline"> quinoline</a> </p> <a href="https://publications.waset.org/abstracts/56138/fluorescence-gold-nanoparticles-sensing-properties-and-cytotoxicity-studies-in-mcf-7-human-breast-cancer-cells" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/56138.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">382</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">265</span> Nonlinear Free Vibrations of Functionally Graded Cylindrical Shells</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alexandra%20Andrade%20Brand%C3%A3o%20Soares">Alexandra Andrade Brandão Soares</a>, <a href="https://publications.waset.org/abstracts/search?q=Paulo%20Batista%20Gon%C3%A7alves"> Paulo Batista Gonçalves</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Using a modal expansion that satisfies the boundary and continuity conditions and expresses the modal couplings characteristic of cylindrical shells in the nonlinear regime, the equations of motion are discretized using the Galerkin method. The resulting algebraic equations are solved by the Newton-Raphson method, thus obtaining the nonlinear frequency-amplitude relation. Finally, a parametric analysis is conducted to study the influence of the geometry of the shell, the gradient of the functional material and vibration modes on the degree and type of nonlinearity of the cylindrical shell, which is the main contribution of this research work. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cylindrical%20shells" title="cylindrical shells">cylindrical shells</a>, <a href="https://publications.waset.org/abstracts/search?q=dynamics" title=" dynamics"> dynamics</a>, <a href="https://publications.waset.org/abstracts/search?q=functionally%20graded%20material" title=" functionally graded material"> functionally graded material</a>, <a href="https://publications.waset.org/abstracts/search?q=nonlinear%20vibrations" title=" nonlinear vibrations"> nonlinear vibrations</a> </p> <a href="https://publications.waset.org/abstracts/183404/nonlinear-free-vibrations-of-functionally-graded-cylindrical-shells" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/183404.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">65</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">264</span> Exploring the State of Leadership Effectiveness of Tertiary Institutions in Nigeria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ojeka%20Alexandra">Ojeka Alexandra</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The study investigated the leadership effectiveness of leaders of tertiary institutions in Nigeria. The study sought to examine the leadership styles adopted, the leadership energy and effectiveness of the leaders of two tertiary institutions. The research was undertaken at two institutions, one Polytechnic and one University. The population of the study was the lecturers and the heads of departments of the two institutions. The leadership matrix and leadership effectiveness index questionnaires were employed to collect quantitative and qualitative data. The preferred and practiced styles were compared and contrasted to determine whether or not they were used to achieve goals and objectives of the lecturers and the organizations. The recommendations contribute towards the academic and professional development of the lecturers and their institutions. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=leadership" title="leadership">leadership</a>, <a href="https://publications.waset.org/abstracts/search?q=leadership%20effectiveness" title="leadership effectiveness">leadership effectiveness</a>, <a href="https://publications.waset.org/abstracts/search?q=leadership%20energy" title=" leadership energy"> leadership energy</a>, <a href="https://publications.waset.org/abstracts/search?q=tertiary%20institutions" title=" tertiary institutions"> tertiary institutions</a>, <a href="https://publications.waset.org/abstracts/search?q=and%20leadership%20styles" title=" and leadership styles"> and leadership styles</a> </p> <a href="https://publications.waset.org/abstracts/34338/exploring-the-state-of-leadership-effectiveness-of-tertiary-institutions-in-nigeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/34338.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">288</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">263</span> The Status of English Learning in the Israeli Academy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ronit%20German">Ronit German</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexandra%20Beytenbrat"> Alexandra Beytenbrat</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Although English seems to be prevalent in every sphere of Israeli daily life, not many Israeli students have a sufficient level of writing and speaking in English which is necessary for academic studies. The inadequate level of English among Israeli students is because the sole focus is on teaching reading comprehension, and the need to adapt to the trends of the professional worldwide demands triggered a reform that requires implementing Common European Framework of Reference (CEFR) and English as a Medium of Instruction (EMI) courses in the Israeli academic institutions. However, it will be argued that this reform is challenging to implement. The fact that modern Hebrew is a revived language, and that English is L3 for more than 30% of the population, the diverse social and cultural students’ background, and psychological factors stand in the way of the new reform. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=CEFR" title="CEFR">CEFR</a>, <a href="https://publications.waset.org/abstracts/search?q=cultural%20diversity" title=" cultural diversity"> cultural diversity</a>, <a href="https://publications.waset.org/abstracts/search?q=EMI%20courses" title=" EMI courses"> EMI courses</a>, <a href="https://publications.waset.org/abstracts/search?q=English%20in%20Israel" title=" English in Israel"> English in Israel</a>, <a href="https://publications.waset.org/abstracts/search?q=reform" title=" reform"> reform</a> </p> <a href="https://publications.waset.org/abstracts/139693/the-status-of-english-learning-in-the-israeli-academy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/139693.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">218</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">262</span> The Status of English in the Israeli Academy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ronit%20German">Ronit German</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexandra%20Beytenbrat"> Alexandra Beytenbrat</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Although English seems to be prevalent in every sphere of Israeli daily life, not many Israeli students have a sufficient level of writing and speaking in English which is necessary for academic studies. The inadequate level of English among Israeli students, almost the sole focus on teaching reading comprehension, and the need to adapt to the trends of the professional worldwide demands triggered a reform that requires to implement Common European Framework of Reference (CEFR) and English as a Medium of Instruction (EMI) courses in the Israeli academic institutions. However, it will be argued that this reform is challenging to implement. The fact that modern Hebrew is a revived language, and that English is L3 for more than 30% of the population, the diverse social and cultural students’ background, and psychological factors stand in the way of the new reform. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=CEFR" title="CEFR">CEFR</a>, <a href="https://publications.waset.org/abstracts/search?q=cultural%20diversity" title=" cultural diversity"> cultural diversity</a>, <a href="https://publications.waset.org/abstracts/search?q=EMI%20courses" title=" EMI courses"> EMI courses</a>, <a href="https://publications.waset.org/abstracts/search?q=English%20in%20Israel" title=" English in Israel"> English in Israel</a>, <a href="https://publications.waset.org/abstracts/search?q=reform" title=" reform"> reform</a> </p> <a href="https://publications.waset.org/abstracts/139657/the-status-of-english-in-the-israeli-academy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/139657.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">205</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">261</span> Competences for Learning beyond the Academic Context</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Cristina%20Galv%C3%A1n-Fern%C3%A1ndez">Cristina Galván-Fernández </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Students differentiate the different contexts of their lives as well as employment, hobbies or studies. In higher education is needed to transfer the experiential knowledge to theory and viceversa. However, is difficult to achieve than students use their personal experiences and social readings for get the learning evidences. In an experience with 178 education students from Chile and Spain we have used an e-portfolio system and a methodology for 4 years with the aims of help them to: 1) self-regulate their learning process and 2) use social networks and professional experiences for make the learning evidences. These two objectives have been controlled by interviews to the same students in different moments and two questionnaires. The results of this study show that students recognize the ownership of their learning and progress in planning and reflection of their own learning. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=competences" title="competences">competences</a>, <a href="https://publications.waset.org/abstracts/search?q=e-portfolio" title=" e-portfolio"> e-portfolio</a>, <a href="https://publications.waset.org/abstracts/search?q=higher%20education" title=" higher education"> higher education</a>, <a href="https://publications.waset.org/abstracts/search?q=self-regulation" title=" self-regulation"> self-regulation</a> </p> <a href="https://publications.waset.org/abstracts/59108/competences-for-learning-beyond-the-academic-context" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/59108.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">299</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">260</span> Argumentative and Enunciative Analysis of Spanish Political Discourse</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Cristina%20Diez">Cristina Diez</a> </p> <p class="card-text"><strong>Abstract:</strong></p> One of the most important challenges of discourse analysis is to find the linguistic mechanisms of subjectivity. The present article aims to raise the need for an argumentative and enunciative analysis to reach the subjective tissue of language. The intention is to prove that the instructions inscribed in the own language are those that indicate how a statement is to be interpreted and that the argumentative value is implied at the semantic level. For that, the theory of argumentation from Ducrot and Anscombre will be implemented. First, a reflection on the study about subjectivity and enunciation in language will be exposed, followed by concrete proposals on the linguistic mechanisms that speakers use either consciously or unconsciously, to finally focus on those argumentative tools that political discourse uses in order to influence the audience. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=argumentation" title="argumentation">argumentation</a>, <a href="https://publications.waset.org/abstracts/search?q=enunciation" title=" enunciation"> enunciation</a>, <a href="https://publications.waset.org/abstracts/search?q=discourse%20analysis" title=" discourse analysis"> discourse analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=subjectivity" title=" subjectivity"> subjectivity</a> </p> <a href="https://publications.waset.org/abstracts/81219/argumentative-and-enunciative-analysis-of-spanish-political-discourse" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/81219.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">201</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">259</span> Health Status Monitoring of COVID-19 Patient's through Blood Tests and Naïve-Bayes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Carlos%20Arias-Alcaide">Carlos Arias-Alcaide</a>, <a href="https://publications.waset.org/abstracts/search?q=Cristina%20Soguero-Ruiz"> Cristina Soguero-Ruiz</a>, <a href="https://publications.waset.org/abstracts/search?q=Paloma%20Santos-%C3%81lvarez"> Paloma Santos-Álvarez</a>, <a href="https://publications.waset.org/abstracts/search?q=Adri%C3%A1n%20Garc%C3%ADa-Romero"> Adrián García-Romero</a>, <a href="https://publications.waset.org/abstracts/search?q=Inmaculada%20Mora-Jim%C3%A9nez"> Inmaculada Mora-Jiménez</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Analysing clinical data with computers in such a way that have an impact on the practitioners’ workflow is a challenge nowadays. This paper provides a first approach for monitoring the health status of COVID-19 patients through the use of some biomarkers (blood tests) and the simplest Naïve Bayes classifier. Data of two Spanish hospitals were considered, showing the potential of our approach to estimate reasonable posterior probabilities even some days before the event. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bayesian%20model" title="Bayesian model">Bayesian model</a>, <a href="https://publications.waset.org/abstracts/search?q=blood%20biomarkers" title=" blood biomarkers"> blood biomarkers</a>, <a href="https://publications.waset.org/abstracts/search?q=classification" title=" classification"> classification</a>, <a href="https://publications.waset.org/abstracts/search?q=health%20tracing" title=" health tracing"> health tracing</a>, <a href="https://publications.waset.org/abstracts/search?q=machine%20learning" title=" machine learning"> machine learning</a>, <a href="https://publications.waset.org/abstracts/search?q=posterior%20probability" title=" posterior probability"> posterior probability</a> </p> <a href="https://publications.waset.org/abstracts/148454/health-status-monitoring-of-covid-19-patients-through-blood-tests-and-naive-bayes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/148454.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">233</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">258</span> Assessing Lithium Recovery from Secondary Sources</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Carolina%20A.%20Santos">Carolina A. Santos</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexandra%20B.%20Ribeiro"> Alexandra B. Ribeiro</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Climate change and environmental degradation are threats to humanity. Europe has been addressing these problems, namely through the Green Deal, with the use of batteries in mobility and energy fields. However, these require the use of critical raw materials, like lithium, which demand is estimated to grow 60 times in the next 30 years. Thus, it is fundamental to promote a circular economy with lithium recovery from secondary resources. These are nowadays key topics, which will be even more relevant in the future, so a new way to approach them is needed and must be encouraged. Therefore, one of our main goals is to analyse two methods of lithium retrieval from secondary sources, bioleaching, and electrodialysis, and assess them regarding their sustainability. The latest results show good efficiency of removal with both methods, even though there are some matrix interferences. Hence, further investment and research are needed in order to make this process sustainable and our society more circular. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=lithium" title="lithium">lithium</a>, <a href="https://publications.waset.org/abstracts/search?q=sustainable%20mining" title=" sustainable mining"> sustainable mining</a>, <a href="https://publications.waset.org/abstracts/search?q=social%20license%20to%20operate" title=" social license to operate"> social license to operate</a>, <a href="https://publications.waset.org/abstracts/search?q=bioleaching" title=" bioleaching"> bioleaching</a>, <a href="https://publications.waset.org/abstracts/search?q=electrodialysis" title=" electrodialysis"> electrodialysis</a> </p> <a href="https://publications.waset.org/abstracts/147171/assessing-lithium-recovery-from-secondary-sources" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/147171.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">130</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">257</span> Predicting the Lifetime of Weathered Polyolefins by Relating Mechanics to Microstructure</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Marta%20Chiapasco">Marta Chiapasco</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexandra%20Porter"> Alexandra Porter</a>, <a href="https://publications.waset.org/abstracts/search?q=Finn%20Giuliani"> Finn Giuliani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Designing polymers with a specific microstructure can affect how the polymer degrades once released in the environment. Not only the amount but also the distribution of different phases determines a polymers’ degradability. The following research investigates the use of a combination of spectroscopy analysis and thermal analysis to study changes of polymers’ amorphous and crystalline phases during degradation, comparing different microstructures of polypropylene and polyethylene. The use of nanoindentation helps study how degradation proceeds across a material by looking at changes in phases, while bulk tensile test describes when the material fails. The first results demonstrate that different microstructures have different degrading rates, with homopolymer having a linear and faster degradation compared to copolymers. The goal is to create materials that degrade at faster rates without releasing microplastics into the environment. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=degradation" title="degradation">degradation</a>, <a href="https://publications.waset.org/abstracts/search?q=microstructure" title=" microstructure"> microstructure</a>, <a href="https://publications.waset.org/abstracts/search?q=nanoindentation" title=" nanoindentation"> nanoindentation</a>, <a href="https://publications.waset.org/abstracts/search?q=Raman%20spectroscopy" title=" Raman spectroscopy"> Raman spectroscopy</a> </p> <a href="https://publications.waset.org/abstracts/148181/predicting-the-lifetime-of-weathered-polyolefins-by-relating-mechanics-to-microstructure" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/148181.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">156</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">256</span> Bowen Ratio in Western São Paulo State, Brazil</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Elaine%20Cristina%20Barboza">Elaine Cristina Barboza</a>, <a href="https://publications.waset.org/abstracts/search?q=Antonio%20Jaschke%20Machado"> Antonio Jaschke Machado</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper discusses micrometeorological aspects of the urban climate in three cities in Western São Paulo State: Presidente Prudente, Assis, and Iepê. Particular attention is paid to the method used to estimate the components of the energy balance at the surface. Estimates of convective fluxes showed that the Bowen ratio was an indicator of the local climate and that its magnitude varied between 0.3 and 0.7. Maximum values for the Bowen ratio occurred earlier in Iepê (11:00 am) than in Presidente Prudente (4:00 pm). The results indicate that the Bowen ratio is modulated by the radiation balance at the surface and by different clusters of vegetation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bowen%20ratio" title="Bowen ratio">Bowen ratio</a>, <a href="https://publications.waset.org/abstracts/search?q=medium-sized%20cities" title=" medium-sized cities"> medium-sized cities</a>, <a href="https://publications.waset.org/abstracts/search?q=surface%20energy%20balance" title=" surface energy balance"> surface energy balance</a>, <a href="https://publications.waset.org/abstracts/search?q=urban%20climate" title=" urban climate"> urban climate</a> </p> <a href="https://publications.waset.org/abstracts/29606/bowen-ratio-in-western-sao-paulo-state-brazil" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/29606.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light 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