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Kolesárová</title> <meta name="description" content="Search results for: Adriana Kolesárová"> <meta name="keywords" content="Adriana Kolesárová"> <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 class="d-block d-lg-none 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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="Adriana Kolesárová"> <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> 100</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Adriana Kolesárová</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">100</span> Induction of Hsp70 and Antioxidant Status in Porcine Granulosa Cells in Response to Deoxynivalenol and Zearalenone Exposure in vitro</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Marcela%20Capcarova">Marcela Capcarova</a>, <a href="https://publications.waset.org/abstracts/search?q=Adriana%20Kolesarova"> Adriana Kolesarova</a>, <a href="https://publications.waset.org/abstracts/search?q=Marina%20Medvedova"> Marina Medvedova</a>, <a href="https://publications.waset.org/abstracts/search?q=Peter%20Petruska"> Peter Petruska</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexander%20V.%20Sirotkin"> Alexander V. Sirotkin</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aim of this study was to determine the activity of superoxide dismutase (SOD), glutathione peroxidase (GPx), total antioxidant status (TAS) and accumulation of Hsp70 in porcine ovarian granulosa cells after deoxynivalenol (DON) and zearalenone (ZEA) exposure in vitro. Porcine ovarian granulosa cells were incubated with DON/ZEA administrations as follows: group A (10/10 ng/mL), group B (100/100 ng/mL), group C (1000/1000 ng/mL), and the control group without any additions for 24h. In this study mycotoxins developed stress reaction of porcine ovarian granulosa cells and increased accumulation of Hsp70 what resulted in increasing activities of SOD and GPx in groups with lower doses of mycotoxins. High dose of DON and ZEA had opposite effect on GPx activity than the lower doses. Slight increase in TAS of porcine granulosa cells was observed after mycotoxins exposure. These results contribute towards the understanding of cellular stress and its response. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=deoxynivalenol" title="deoxynivalenol">deoxynivalenol</a>, <a href="https://publications.waset.org/abstracts/search?q=zearalenone" title=" zearalenone"> zearalenone</a>, <a href="https://publications.waset.org/abstracts/search?q=antioxidants" title=" antioxidants"> antioxidants</a>, <a href="https://publications.waset.org/abstracts/search?q=Hsp70" title=" Hsp70"> Hsp70</a>, <a href="https://publications.waset.org/abstracts/search?q=granulosa%20cells" title=" granulosa cells"> granulosa cells</a> </p> <a href="https://publications.waset.org/abstracts/3249/induction-of-hsp70-and-antioxidant-status-in-porcine-granulosa-cells-in-response-to-deoxynivalenol-and-zearalenone-exposure-in-vitro" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/3249.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">256</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">99</span> In vitro Effects of Viscum album on the Functionality of Rabbit Spermatozoa</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Marek%20Halen%C3%A1r">Marek Halenár</a>, <a href="https://publications.waset.org/abstracts/search?q=Eva%20Tvrd%C3%A1"> Eva Tvrdá</a>, <a href="https://publications.waset.org/abstracts/search?q=Simona%20Baldovsk%C3%A1"> Simona Baldovská</a>, <a href="https://publications.waset.org/abstracts/search?q=%C4%BDubom%C3%ADr%20Ondru%C5%A1ka"> Ľubomír Ondruška</a>, <a href="https://publications.waset.org/abstracts/search?q=Peter%20Mass%C3%A1nyi"> Peter Massányi</a>, <a href="https://publications.waset.org/abstracts/search?q=Adriana%20Koles%C3%A1rov%C3%A1"> Adriana Kolesárová</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study aimed to assess the <em>in vitro </em>effects of different concentrations of the <em>Viscum album </em>extract on the motility, viability, and reactive oxygen species (ROS) production by rabbit spermatozoa during different time periods (0, 2, and 8h). Spermatozoa motility was assessed by using the CASA (Computer aided sperm analysis) system. Cell viability was evaluated by using the metabolic activity MTT assay, and the luminol-based luminometry was applied to quantify the ROS formation. The CASA analysis revealed that low <em>Viscum</em> concentrations were able to prevent a rapid decline of spermatozoa motility, especially in the case of concentrations ranging between 1 and 5 µg/mL (P<0.05 with respect to time 8h). At the same time, concentrations ranging between 1 and 100 µg/mL of the extract led to a significant preservation of the cell viability (P<0.05 in case of 5, 50 and 100 µg/mL; P<0.01 with respect to 1 and 10 µg/mL, time 8h). 1 and 5 µg/mL of the extract exhibited antioxidant characteristics, translated into a significant reduction of the ROS production, particularly notable at time 8h (P<0.01). The results indicate that the <em>Viscum</em> extract is capable of delaying the damage inflicted to the spermatozoon by the <em>in vitro</em> environment. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=CASA" title="CASA">CASA</a>, <a href="https://publications.waset.org/abstracts/search?q=mistletoe" title=" mistletoe"> mistletoe</a>, <a href="https://publications.waset.org/abstracts/search?q=mitochondrial%20activity" title=" mitochondrial activity"> mitochondrial activity</a>, <a href="https://publications.waset.org/abstracts/search?q=motility" title=" motility"> motility</a>, <a href="https://publications.waset.org/abstracts/search?q=reactive%20oxygen%20species" title=" reactive oxygen species"> reactive oxygen species</a>, <a href="https://publications.waset.org/abstracts/search?q=rabbits" title=" rabbits"> rabbits</a>, <a href="https://publications.waset.org/abstracts/search?q=spermatozoa" title=" spermatozoa"> spermatozoa</a>, <a href="https://publications.waset.org/abstracts/search?q=Viscum%20album" title=" Viscum album"> Viscum album</a> </p> <a href="https://publications.waset.org/abstracts/56563/in-vitro-effects-of-viscum-album-on-the-functionality-of-rabbit-spermatozoa" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/56563.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">394</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">98</span> In vitro Effects of Amygdalin on the Functional Competence of Rabbit Spermatozoa</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Marek%20Halen%C3%A1r">Marek Halenár</a>, <a href="https://publications.waset.org/abstracts/search?q=Eva%20Tvrd%C3%A1"> Eva Tvrdá</a>, <a href="https://publications.waset.org/abstracts/search?q=Tom%C3%A1%C5%A1%20Slanina"> Tomáš Slanina</a>, <a href="https://publications.waset.org/abstracts/search?q=%C4%BDubom%C3%ADr%20Ondru%C5%A1ka"> Ľubomír Ondruška</a>, <a href="https://publications.waset.org/abstracts/search?q=Eduard%20Koles%C3%A1r"> Eduard Kolesár</a>, <a href="https://publications.waset.org/abstracts/search?q=Peter%20Mass%C3%A1nyi"> Peter Massányi</a>, <a href="https://publications.waset.org/abstracts/search?q=Adriana%20Koles%C3%A1rov%C3%A1"> Adriana Kolesárová </a> </p> <p class="card-text"><strong>Abstract:</strong></p> The present <em>in vitro</em> study was designed to reveal whether amygdalin (AMG) is able to cause changes to the motility, viability and mitochondrial activity of rabbit spermatozoa. New Zealand White rabbits (n = 10) aged four months were used in the study. Semen samples were collected from each animal and used for the <em>in vitro </em>incubation. The samples were divided into five equal parts and diluted with saline supplemented with 0, 0.5, 1, 2.5 and 5 mg/mL AMG. At times 0h, 3h and 5h spermatozoa motion parameters were assessed using the SpermVision™ computer-aided sperm analysis (CASA) system, cell viability was examined with the metabolic activity (MTT) assay, and the eosin-nigrosin staining technique was used to evaluate the viability of rabbit spermatozoa. All AMG concentrations exhibited stimulating effects on the spermatozoa activity, as shown by a significant preservation of the motility (P<0.05 with respect to 0.5 mg/mL and 1 mg/mL AMG; Time 5 h) and mitochondrial activity (P< 0.05 in case of 0.5 mg/mL AMG; P< 0.01 in case of 1 mg/mL AMG; P < 0.001 with respect to 2.5 mg/mL and 5 mg/mL AMG; Time 5 h). None of the AMG doses supplemented had any significant impact of the spermatozoa viability. In conclusion, the data revealed that short-term co-incubation of spermatozoa with AMG may result in a higher preservation of the sperm structural integrity and functional activity. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=amygdalin" title="amygdalin">amygdalin</a>, <a href="https://publications.waset.org/abstracts/search?q=CASA" title=" CASA"> CASA</a>, <a href="https://publications.waset.org/abstracts/search?q=mitochondrial%20activity" title=" mitochondrial activity"> mitochondrial activity</a>, <a href="https://publications.waset.org/abstracts/search?q=motility" title=" motility"> motility</a>, <a href="https://publications.waset.org/abstracts/search?q=rabbits" title=" rabbits"> rabbits</a>, <a href="https://publications.waset.org/abstracts/search?q=spermatozoa" title=" spermatozoa"> spermatozoa</a>, <a href="https://publications.waset.org/abstracts/search?q=viability" title=" viability"> viability</a> </p> <a href="https://publications.waset.org/abstracts/55018/in-vitro-effects-of-amygdalin-on-the-functional-competence-of-rabbit-spermatozoa" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/55018.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">330</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">97</span> Molecular Docking Assessment of Pesticides Binding to Bacterial Chitinases</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Diana%20Larisa%20Vladoiu">Diana Larisa Vladoiu</a>, <a href="https://publications.waset.org/abstracts/search?q=Vasile%20Ostafe"> Vasile Ostafe</a>, <a href="https://publications.waset.org/abstracts/search?q=Adriana%20Isvoran"> Adriana Isvoran</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Molecular docking calculations reveal that pesticides provide favorable interactions with the bacterial chitinases. Pesticides interact with both hydrophilic and aromatic residues involved in the active site of the enzymes, their positions partially overlapping the substrate and the inhibitors locations. Molecular docking outcomes, in correlation with experimental literature data, suggest that the pesticides may be degraded or having an inhibitor effect on the activity of these enzymes, depending of the application dose and rate. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chitinases" title="chitinases">chitinases</a>, <a href="https://publications.waset.org/abstracts/search?q=inhibition" title=" inhibition"> inhibition</a>, <a href="https://publications.waset.org/abstracts/search?q=molecular%20docking" title=" molecular docking"> molecular docking</a>, <a href="https://publications.waset.org/abstracts/search?q=pesticides" title=" pesticides"> pesticides</a> </p> <a href="https://publications.waset.org/abstracts/25456/molecular-docking-assessment-of-pesticides-binding-to-bacterial-chitinases" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/25456.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">551</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">96</span> Recognition of International Internships for Students at European Level</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Tiron-Tudor%20Adriana">Tiron-Tudor Adriana</a>, <a href="https://publications.waset.org/abstracts/search?q=Ciolomic%20Ioana"> Ciolomic Ioana</a>, <a href="https://publications.waset.org/abstracts/search?q=Farcas%20Teodora"> Farcas Teodora</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The mission of a business school is to train students for business careers in which practical skills- based on theoretical knowledge- are needed. These skills include a thorough knowledge of languages, creative skills, and well-founded professional and practical knowledge. With those skills, the graduates are highly competitive in the labour market. The paper objective is to disseminate the results of an international project by revealing how a HEI are prepared for higher vocational training course leading to professional diplomas. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=vocational%20education" title="vocational education">vocational education</a>, <a href="https://publications.waset.org/abstracts/search?q=business%20schools" title=" business schools"> business schools</a>, <a href="https://publications.waset.org/abstracts/search?q=international%20projects" title=" international projects"> international projects</a>, <a href="https://publications.waset.org/abstracts/search?q=HEI" title=" HEI"> HEI</a> </p> <a href="https://publications.waset.org/abstracts/35198/recognition-of-international-internships-for-students-at-european-level" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/35198.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">410</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">95</span> Investigating the Effects of Data Transformations on a Bi-Dimensional Chi-Square Test</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alexandru%20George%20Vaduva">Alexandru George Vaduva</a>, <a href="https://publications.waset.org/abstracts/search?q=Adriana%20Vlad"> Adriana Vlad</a>, <a href="https://publications.waset.org/abstracts/search?q=Bogdan%20Badea"> Bogdan Badea</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this research, we conduct a Monte Carlo analysis on a two-dimensional χ2 test, which is used to determine the minimum distance required for independent sampling in the context of chaotic signals. We investigate the impact of transforming initial data sets from any probability distribution to new signals with a uniform distribution using the Spearman rank correlation on the χ2 test. This transformation removes the randomness of the data pairs, and as a result, the observed distribution of χ2 test values differs from the expected distribution. We propose a solution to this problem and evaluate it using another chaotic signal. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chaotic%20signals" title="chaotic signals">chaotic signals</a>, <a href="https://publications.waset.org/abstracts/search?q=logistic%20map" title=" logistic map"> logistic map</a>, <a href="https://publications.waset.org/abstracts/search?q=Pearson%E2%80%99s%20test" title=" Pearson’s test"> Pearson’s test</a>, <a href="https://publications.waset.org/abstracts/search?q=Chi%20Square%20test" title=" Chi Square test"> Chi Square test</a>, <a href="https://publications.waset.org/abstracts/search?q=bivariate%20distribution" title=" bivariate distribution"> bivariate distribution</a>, <a href="https://publications.waset.org/abstracts/search?q=statistical%20independence" title=" statistical independence"> statistical independence</a> </p> <a href="https://publications.waset.org/abstracts/161938/investigating-the-effects-of-data-transformations-on-a-bi-dimensional-chi-square-test" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/161938.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">97</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">94</span> Transforming the Human Resources of the Company in Innovation Factors: Educational Tools</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ciolomic%20Ioana%20Andreea">Ciolomic Ioana Andreea</a>, <a href="https://publications.waset.org/abstracts/search?q=Farcas%20Teodora"> Farcas Teodora</a>, <a href="https://publications.waset.org/abstracts/search?q=Tiron-Tudor%20Adriana"> Tiron-Tudor Adriana </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Investments in research and innovation are widely acknowledged as being crucial drivers for economic growth, for job-creation and to secure social and economic welfare. The aim of this article is to disseminate the results of a Leonardo da Vinci Innovation Transfer project, AdapTykes Adaptation of trainings based up on the Finnish Workplace Development Programme. This project aims to analyses the adaptability of the Finnish model to the economic and political environment of the two emergent countries Romania and Hungary, in order to develop workplace innovation. The focus of this paper is to present the adaptability of the Finnish model to the Romanian context. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=innovation" title="innovation">innovation</a>, <a href="https://publications.waset.org/abstracts/search?q=human%20resources" title=" human resources"> human resources</a>, <a href="https://publications.waset.org/abstracts/search?q=education" title=" education"> education</a>, <a href="https://publications.waset.org/abstracts/search?q=tools" title=" tools "> tools </a> </p> <a href="https://publications.waset.org/abstracts/26979/transforming-the-human-resources-of-the-company-in-innovation-factors-educational-tools" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/26979.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">529</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">93</span> Crude Glycerol Affects Canine Spermatoa Motility: Computer Assister Semen Analysis in Vitro</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=P.%20Massanyi">P. Massanyi</a>, <a href="https://publications.waset.org/abstracts/search?q=L.%20Kichi"> L. Kichi</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20Slanina"> T. Slanina</a>, <a href="https://publications.waset.org/abstracts/search?q=E.%20Kolesar"> E. Kolesar</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20Danko"> J. Danko</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20Lukac"> N. Lukac</a>, <a href="https://publications.waset.org/abstracts/search?q=E.%20Tvrda"> E. Tvrda</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20Stawarz"> R. Stawarz</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Kolesarova"> A. Kolesarova </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Target of this study was the analysis of the impact of crude glycerol on canine spermatozoa motility, morphology, viability, and membrane integrity. Experiments were realized in vitro. In the study, semen from 5 large dog breeds was used. They were typical representatives of large breeds, coming from healthy rearing, regularly vaccinated and integrated to the further breeding. Semen collections were realized at the owners of animals and in the veterinary clinic. Subsequently the experiments were realized at the Department of Animal Physiology of the SUA in Nitra. The spermatozoa motility was evaluated using CASA analyzer (SpermVisionTM, Minitub, Germany) at the temperature 5 and 37°C for 5 hours. In the study, 13 motility parameters were evaluated. Generally, crude glycerol has generally negative effect on spermatozoa motility. Morphological analysis was realized using Hancock staining and the preparations were evaluated at magnification 1000x using classification tables of morphologically changed spermatozoa. Data clearly detected the highest number of morphologically changed spermatozoa in the experimental groups (know twisted tails, tail torso and tail coiling). For acrosome alterations swelled acrosomes, removed acrosomes and acrosomes with undulated membrane were detected. In this study also the effect of crude glycerol on spermatozoa membrane integrity were analyzed. The highest crude glycerol concentration significantly affects spermatozoa integrity. Results of this study show that crude glycerol has effect of spermatozoa motility, viability, and membrane integrity. Detected changes are related to crude glycerol concentration, temperature, as well as time of incubation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dog" title="dog">dog</a>, <a href="https://publications.waset.org/abstracts/search?q=semen" title=" semen"> semen</a>, <a href="https://publications.waset.org/abstracts/search?q=spermatozoa" title=" spermatozoa"> spermatozoa</a>, <a href="https://publications.waset.org/abstracts/search?q=acrosome" title=" acrosome"> acrosome</a>, <a href="https://publications.waset.org/abstracts/search?q=glycerol" title=" glycerol"> glycerol</a>, <a href="https://publications.waset.org/abstracts/search?q=CASA" title=" CASA"> CASA</a>, <a href="https://publications.waset.org/abstracts/search?q=viability" title=" viability"> viability</a> </p> <a href="https://publications.waset.org/abstracts/35012/crude-glycerol-affects-canine-spermatoa-motility-computer-assister-semen-analysis-in-vitro" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/35012.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">319</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">92</span> Morphostructural Characterization of Zinc and Manganese Nano-Oxides</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Adriana-Gabriela%20Plaiasu">Adriana-Gabriela Plaiasu</a>, <a href="https://publications.waset.org/abstracts/search?q=Catalin%20Marian%20Ducu"> Catalin Marian Ducu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The interest in the unique properties associated with materials having structures on a nanometer scale has been increasing at an exponential rate in last decade. Among the functional mineral compounds such as perovskite (CaTiO3), rutile (TiO2), CaF2, spinel (MgAl2O4), wurtzite (ZnS), zincite (ZnO) and the cupric oxide (CuO) has been used in numerous applications such as catalysis, semiconductors, batteries, gas sensors, biosensors, field transistors and medicine. The Solar Physical Vapor Deposition (SPVD) presented in the paper as elaboration method is an original process to prepare nanopowders working under concentrated sunlight in 2kW solar furnaces. The influence of the synthesis parameters on the chemical and microstructural characteristics of zinc and manganese oxides synthesized nanophases has been systematically studied using XRD, TEM and SEM. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=characterization" title="characterization">characterization</a>, <a href="https://publications.waset.org/abstracts/search?q=morphological" title=" morphological"> morphological</a>, <a href="https://publications.waset.org/abstracts/search?q=nano-oxides" title=" nano-oxides"> nano-oxides</a>, <a href="https://publications.waset.org/abstracts/search?q=structural" title=" structural"> structural</a> </p> <a href="https://publications.waset.org/abstracts/83988/morphostructural-characterization-of-zinc-and-manganese-nano-oxides" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/83988.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">278</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">91</span> A Rare Case Report of Wandering Spleen Torsion</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Steven%20Robinson">Steven Robinson</a>, <a href="https://publications.waset.org/abstracts/search?q=Adriana%20Dager"> Adriana Dager</a>, <a href="https://publications.waset.org/abstracts/search?q=Param%20Patel"> Param Patel</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Wandering spleen is a rare variant where there is abnormal development of the ligamentous peritoneal attachments of the spleen which normally anchor it in the left upper quadrant of the abdomen. Ligamentous abnormalities can be congenital, or acquired through pregnancy, injury, or iatrogenic causes. Absence or laxity of these ligaments allows migration of the spleen into ectopic portions of the abdomen, which is also associated with an elongated vascular pedicle. Incidence of wandering spleen is reported at less than 0.25% with a female to male ratio of approximately 6:1. The most common complication of a wandering spleen is torsion around its vascular pedicle which can lead to thrombosis and infarction. Torsion of a wandering spleen is a rare but important cause of an acute abdomen. Imaging, and specifically CT or ultrasound, is crucial in the diagnosis. We present a case of a torsed wandering spleen which was treated with splenectomy. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Wandering%20Spleen" title="Wandering Spleen">Wandering Spleen</a>, <a href="https://publications.waset.org/abstracts/search?q=Torsion" title=" Torsion"> Torsion</a>, <a href="https://publications.waset.org/abstracts/search?q=Splenic%20Torsion" title=" Splenic Torsion"> Splenic Torsion</a>, <a href="https://publications.waset.org/abstracts/search?q=Spleen" title=" Spleen"> Spleen</a> </p> <a href="https://publications.waset.org/abstracts/162557/a-rare-case-report-of-wandering-spleen-torsion" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/162557.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">81</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">90</span> Study of Intergranular Corrosion in Austenitic Stainless Steels Using Electrochemical Impedance Spectroscopy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Satish%20Kolli">Satish Kolli</a>, <a href="https://publications.waset.org/abstracts/search?q=Adriana%20Ferancova"> Adriana Ferancova</a>, <a href="https://publications.waset.org/abstracts/search?q=David%20Porter"> David Porter</a>, <a href="https://publications.waset.org/abstracts/search?q=Jukka%20K%C3%B6mi"> Jukka Kömi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Electrochemical impedance spectroscopy (EIS) has been used to detect sensitization in austenitic stainless steels that are heat treated in the temperature regime 600-820 °C to produce different degrees of sensitization in the material. The tests were conducted at five different DC potentials in the transpassive region. The quantitative determination of degree of sensitization has been done using double loop electrochemical potentiokinetic reactivation tests (DL-EPR). The correlation between EIS Nyquist diagrams and DL-EPR degree of sensitization values has been studied. The EIS technique can be used as a qualitative tool in determining the intergranular corrosion in austenitic stainless steels that are heat treated at a given temperature. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=electrochemical%20technique" title="electrochemical technique">electrochemical technique</a>, <a href="https://publications.waset.org/abstracts/search?q=intergranular%20corrosion" title=" intergranular corrosion"> intergranular corrosion</a>, <a href="https://publications.waset.org/abstracts/search?q=sensitization" title=" sensitization"> sensitization</a>, <a href="https://publications.waset.org/abstracts/search?q=stainless%20steels" title=" stainless steels"> stainless steels</a> </p> <a href="https://publications.waset.org/abstracts/104242/study-of-intergranular-corrosion-in-austenitic-stainless-steels-using-electrochemical-impedance-spectroscopy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/104242.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">182</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">89</span> IntelliCane: A Cane System for Individuals with Lower-Limb Mobility and Functional Impairments</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Adrian%20Bostan">Adrian Bostan</a>, <a href="https://publications.waset.org/abstracts/search?q=Nicolae%20Tapus"> Nicolae Tapus</a>, <a href="https://publications.waset.org/abstracts/search?q=Adriana%20Tapus"> Adriana Tapus</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The purpose of this research paper is to study and develop a system that is able to help identify problems and improve human rehabilitation after traumatic injuries. Traumatic injuries in human’s lower limbs can occur over a life time and can have serious side effects if they are not treated correctly. In this paper, we developed an intelligent cane (IntelliCane) so as to help individuals in their rehabilitation process and provide feedback to the users. The first stage of the paper involves an analysis of the existing systems on the market and what can be improved. The second stage presents the design of the system. The third part, which is still under development is the validation of the system in real world setups with people in need. This paper presents mainly stages one and two. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=IntelliCane" title="IntelliCane">IntelliCane</a>, <a href="https://publications.waset.org/abstracts/search?q=3D%20printing" title=" 3D printing"> 3D printing</a>, <a href="https://publications.waset.org/abstracts/search?q=microprocessor" title=" microprocessor"> microprocessor</a>, <a href="https://publications.waset.org/abstracts/search?q=weight%20measurement" title=" weight measurement"> weight measurement</a>, <a href="https://publications.waset.org/abstracts/search?q=rehabilitation%20tool" title=" rehabilitation tool"> rehabilitation tool</a> </p> <a href="https://publications.waset.org/abstracts/57721/intellicane-a-cane-system-for-individuals-with-lower-limb-mobility-and-functional-impairments" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/57721.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">244</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">88</span> Radiation Effects in the PVDF/Graphene Oxide Nanocomposites</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Juliana%20V.%20Pereira">Juliana V. Pereira</a>, <a href="https://publications.waset.org/abstracts/search?q=Adriana%20S.%20M.%20Batista"> Adriana S. M. Batista</a>, <a href="https://publications.waset.org/abstracts/search?q=Jefferson%20P.%20Nascimento"> Jefferson P. Nascimento</a>, <a href="https://publications.waset.org/abstracts/search?q=Clasc%C3%ADdia%20A.%20Furtado"> Clascídia A. Furtado</a>, <a href="https://publications.waset.org/abstracts/search?q=Luiz%20O.%20Faria"> Luiz O. Faria</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Exposure to ionizing radiation has been found to induce changes in poly(vinylidene fluoride) (PVDF) homopolymers. The high dose gamma irradiation process induces the formation of C=C and C=O bonds in its [CH<sub>2</sub>-CF<sub>2</sub>]<sub>n</sub> main chain. The irradiation also provokes crosslinking and chain scission. All these radio-induced defects lead to changes in the PVDF crystalline structure. As a consequence, it is common to observe a decrease in the melting temperature (T<sub>M</sub>) and melting latent heat (L<sub>M</sub>) and some changes in its ferroelectric features. We have investigated the possibility of preparing nanocomposites of PVDF with graphene oxide (GO) through the radio-induction of molecular bonds. In this work, we discuss how the gamma radiation interacts with the nanocomposite crystalline structure. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=gamma%20irradiation" title="gamma irradiation">gamma irradiation</a>, <a href="https://publications.waset.org/abstracts/search?q=graphene%20oxide" title=" graphene oxide"> graphene oxide</a>, <a href="https://publications.waset.org/abstracts/search?q=nanocomposites" title=" nanocomposites"> nanocomposites</a>, <a href="https://publications.waset.org/abstracts/search?q=PVDF" title=" PVDF"> PVDF</a> </p> <a href="https://publications.waset.org/abstracts/66621/radiation-effects-in-the-pvdfgraphene-oxide-nanocomposites" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/66621.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">285</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">87</span> A Study Regarding Nanotechnologies as a Vector of New European Business Model</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Adriana%20Radan%20Ungureanu">Adriana Radan Ungureanu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The industrial landscape is changing due to the financial crises, poor availability of raw materials, new discoveries and interdisciplinary collaborations. New ideas shape the change through technologies and bring responses for a better life. The process of change is leaded by big players like states and companies, but they cannot keep their places on the market without the help of the small ones. The main tool of change is technology and the entire developed world dedicated efforts for decades in this direction. Even the expectations are not yet met, the research for finding adequate solutions is far from to be stopped. A relevant example is nanotechnology where most of discoveries still remain into laboratory and could not succeed to find the right way to the market. In front of this situation the right question could be: ”Is it worth investing in nanotechnology in the name of an uncertain future but with very little impact on present?” This paper tries to find a positive answer from a three-dimensional approach using a descriptive analyse based on available database supplied by the European case studies, reports, and literature. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Europe" title="Europe">Europe</a>, <a href="https://publications.waset.org/abstracts/search?q=KET%E2%80%99s" title=" KET’s"> KET’s</a>, <a href="https://publications.waset.org/abstracts/search?q=nanotechnology" title=" nanotechnology"> nanotechnology</a>, <a href="https://publications.waset.org/abstracts/search?q=technology" title=" technology"> technology</a> </p> <a href="https://publications.waset.org/abstracts/22794/a-study-regarding-nanotechnologies-as-a-vector-of-new-european-business-model" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/22794.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">417</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">86</span> Linguistics and Grammar Conceptions - An Honor to Ferdinand de Saussure</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Adriana%20Aparecida%20Rodrigues%20Leite">Adriana Aparecida Rodrigues Leite</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Linguistics and grammar conceptions are necessary to comprehend the structure of a language. On one hand, grammar depicts structural rules and instructions. On the other hand, linguistcs is a science which intends to understand the changes that occur in a language. Ferdinand de Saussure throughout his book called: Cours de linguistique générale (Course of general Linguistics) developed theories that portray explanations which defines linguistics as a real object of study of a language. It differs from grammar which is seen by Saussure as an element without scientific pattern. By that means, this research plans to decipher whether Ferdinand de Saussure would be against these conceptions and rules proposed by grammar. Besides that, this paper was based on the exploratory approach to pose concrete principles and facts to provide a response for the problem. This research is divided in the following sections: Introduction, Ferdinand de Saussure, Linguistics Conceptions, Linguistics for Saussure, Grammar Conceptions, and Grammar for Saussure. The result obtained from the analysis of the problem is highlighted in the section: Final Considerations. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=linguistics" title="linguistics">linguistics</a>, <a href="https://publications.waset.org/abstracts/search?q=grammar" title=" grammar"> grammar</a>, <a href="https://publications.waset.org/abstracts/search?q=ferdinand%20de%20saussure" title=" ferdinand de saussure"> ferdinand de saussure</a>, <a href="https://publications.waset.org/abstracts/search?q=language" title=" language"> language</a> </p> <a href="https://publications.waset.org/abstracts/190610/linguistics-and-grammar-conceptions-an-honor-to-ferdinand-de-saussure" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/190610.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">28</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">85</span> Investigation of Zeolite and Silica Fume Addition on Durability of Cement Composites</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Martina%20Kovalcikova">Martina Kovalcikova</a>, <a href="https://publications.waset.org/abstracts/search?q=Adriana%20Estokova"> Adriana Estokova</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Today, concrete belongs to the most frequently used materials in the civil engineering industry for many years. Consuming energy in cement industry is very high and CO₂ emissions generated during the production of Portland cement has serious environmental threatens. Therefore, utilization of pozzolanic material as a supplementary cementitious material has a direct relationship with the sustainable development. The paper presents the results of the comparative study of the resistance of the Slovak origin zeolite based cement composites with addition of silica fume exposed to the sulfate environment. The various aggressive media were used for the experiment: sulfuric acid with pH 4, distilled water and magnesium sulfate solution with a concentration of 3 g/L of SO₄²−. The laboratory experiment proceeded during 180 days under model conditions. The changes in the elemental concentrations of calcium and silicon in liquid leachates were observed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=concrete" title="concrete">concrete</a>, <a href="https://publications.waset.org/abstracts/search?q=leaching" title=" leaching"> leaching</a>, <a href="https://publications.waset.org/abstracts/search?q=silica%20fume" title=" silica fume"> silica fume</a>, <a href="https://publications.waset.org/abstracts/search?q=sulfuric%20acid" title=" sulfuric acid"> sulfuric acid</a>, <a href="https://publications.waset.org/abstracts/search?q=zeolite" title=" zeolite"> zeolite</a> </p> <a href="https://publications.waset.org/abstracts/44431/investigation-of-zeolite-and-silica-fume-addition-on-durability-of-cement-composites" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/44431.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">270</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">84</span> Diffusion of “Not One Woman Less”: Argentina and Beyond</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Adriana%20Piatti-Crocker">Adriana Piatti-Crocker</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Drawing on archival documentation, digital platforms, academic journals, and reports, this research will explore the diffusion of a protest movement in Latin America. Starting in Argentina in 2015, this paper will explain how the hashtag #NiUnaMenos (“Not One Woman Less”), created to combat violence against women and girls, led to the spread of a regionwide movement. A year after its introduction, hundreds of thousands of activists mobilized on the streets of major cities in Latin America. Movements arose to protest against specific circumstances and contexts under the hashtag #NiUnaMenos, but the main goal of all of these protests was to fight against misogynist violence. Moreover, unlike previous social movements, the use of social media, such as Facebook, Instagram, Whatsapp, and Twitter, changed the depth and scope of these protests and led to an unprecedented speed in helping transmit their messages, strategies, identities, and goals. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=social%20protests" title="social protests">social protests</a>, <a href="https://publications.waset.org/abstracts/search?q=%23NiUnaMenos%20%28%20Not%20one%20woman%20less%29" title=" #NiUnaMenos ( Not one woman less)"> #NiUnaMenos ( Not one woman less)</a>, <a href="https://publications.waset.org/abstracts/search?q=diffusion%20of%20social%20protests" title=" diffusion of social protests"> diffusion of social protests</a>, <a href="https://publications.waset.org/abstracts/search?q=protests%20and%20mysoginist%20violence" title=" protests and mysoginist violence"> protests and mysoginist violence</a> </p> <a href="https://publications.waset.org/abstracts/159096/diffusion-of-not-one-woman-less-argentina-and-beyond" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/159096.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">95</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">83</span> Some Aspects of Study the Leaching and Acid Corrosion of Concrete</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alena%20Sicakova">Alena Sicakova</a>, <a href="https://publications.waset.org/abstracts/search?q=Adriana%20Estokova"> Adriana Estokova</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Although properly made concrete is inherently a durable material, there are many physical and chemical forces in the environment which can contribute to its deterioration. This paper deals with two aspects of concrete durability in chemical aggressive environment: degradation effect of particular aggressive exposure and role of particular mineral additives. Results of the study of leaching and acid corrosion processes in samples prepared with specific dosage of microsilica and zeolite are given in the paper. Corrosion progress after 60-day exposition is manifested by increasing rate of both Ca and Si release, what is identified by XRF method. Kind and dosage of additions used in experiment was found to be helpful for stabilization of concrete microstructure. The lowest concentration of mean elements in leachates was observed for mixture V1 (microsilica only) unlike the V2 (microsilica + zeolite). It is surprising in the terms of recommendations of zeolite application for acid exposure. Using microsilica only seems to be more effective. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=sustainability" title="sustainability">sustainability</a>, <a href="https://publications.waset.org/abstracts/search?q=durability" title=" durability"> durability</a>, <a href="https://publications.waset.org/abstracts/search?q=concrete" title=" concrete"> concrete</a>, <a href="https://publications.waset.org/abstracts/search?q=acid%20corrosion" title=" acid corrosion"> acid corrosion</a>, <a href="https://publications.waset.org/abstracts/search?q=leaching" title=" leaching"> leaching</a> </p> <a href="https://publications.waset.org/abstracts/8534/some-aspects-of-study-the-leaching-and-acid-corrosion-of-concrete" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/8534.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">417</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">82</span> Chromium-Leaching Study of Cements in Various Environments </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Adriana%20Estokova">Adriana Estokova</a>, <a href="https://publications.waset.org/abstracts/search?q=Lenka%20Palascakova"> Lenka Palascakova</a>, <a href="https://publications.waset.org/abstracts/search?q=Martina%20Kovalcikova"> Martina Kovalcikova</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Cement is a basic material used for building construction. Chromium as an indelible non-volatile trace element of raw materials occurs in cement clinker in the trivalent or hexavalent form. Hexavalent form of chromium is harmful and allergenic having very high water solubility and thus can easily come into contact with the human skin. The paper is aimed at analyzing the content of total chromium in Portland cements and leaching rate of hexavalent chromium in various leachants: Deionized water, Britton-Robinson buffer, used to simulate the natural environment, and hydrochloric acid (HCl). The concentration of total chromium in Portland cement samples was in a range from 173.2 to 218.5 mg/kg. The content of dissolved hexavalent chromium ranged 0.23-3.19, 2.0-5.78 and 8.88-16.25 mg/kg in deionized water, Britton-Robinson solution and hydrochloric acid, respectively. The calculated leachable fraction of Cr(VI) from cement samples was observed in the range 0.1--7.58 %. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=environment" title="environment">environment</a>, <a href="https://publications.waset.org/abstracts/search?q=cement" title=" cement"> cement</a>, <a href="https://publications.waset.org/abstracts/search?q=chromium" title=" chromium"> chromium</a>, <a href="https://publications.waset.org/abstracts/search?q=leaching" title=" leaching"> leaching</a> </p> <a href="https://publications.waset.org/abstracts/45262/chromium-leaching-study-of-cements-in-various-environments" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/45262.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">277</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">81</span> Modelling Residential Space Heating Energy for Romania</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ion%20Smeureanu">Ion Smeureanu</a>, <a href="https://publications.waset.org/abstracts/search?q=Adriana%20Reveiu"> Adriana Reveiu</a>, <a href="https://publications.waset.org/abstracts/search?q=Marian%20Dardala"> Marian Dardala</a>, <a href="https://publications.waset.org/abstracts/search?q=Titus%20Felix%20Furtuna"> Titus Felix Furtuna</a>, <a href="https://publications.waset.org/abstracts/search?q=Roman%20Kanala"> Roman Kanala</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper proposes a linear model for optimizing domestic energy consumption, in Romania. Both techno-economic and consumer behavior approaches have been considered, in order to develop the model. The proposed model aims to reduce the energy consumption, in households, by assembling in a unitary model, aspects concerning: residential lighting, space heating, hot water, and combined space heating – hot water, space cooling, and passenger transport. This paper focuses on space heating domestic energy consumption model, and quantify not only technical-economic issues, but also consumer behavior impact, related to people decision to envelope and insulate buildings, in order to minimize energy consumption. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=consumer%20behavior" title="consumer behavior">consumer behavior</a>, <a href="https://publications.waset.org/abstracts/search?q=open%20source%20energy%20modeling%20system%20%28OSeMOSYS%29" title=" open source energy modeling system (OSeMOSYS)"> open source energy modeling system (OSeMOSYS)</a>, <a href="https://publications.waset.org/abstracts/search?q=MARKAL%2FTIMES%20Romanian%20energy%20model" title=" MARKAL/TIMES Romanian energy model"> MARKAL/TIMES Romanian energy model</a>, <a href="https://publications.waset.org/abstracts/search?q=virtual%20technologies" title=" virtual technologies"> virtual technologies</a> </p> <a href="https://publications.waset.org/abstracts/34196/modelling-residential-space-heating-energy-for-romania" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/34196.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">542</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">80</span> The Aspect of the Human Bias in Decision Making within Quality Management Systems and LEAN Theory</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Adriana%20Avila%20Zuniga%20Nordfjeld">Adriana Avila Zuniga Nordfjeld</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper provides a literature review to document the state of the art with respect to handling 'human bias' in decision making within the established quality management systems (QMS) and LEAN theory, in the context of shipbuilding. Previous research shows that in shipbuilding there is a huge deviation from the planned man-hours under the project management to the actual man-hours used because of errors in planning and reworks caused by human bias in the information flows among others. This reduces the efficiency and increases operational costs. Thus, the research question is how QMS and LEAN handle biases. The findings show the gap in studying the integration of methods to handle human bias in decision making into QMS and lean, not only within shipbuilding but also in general. Theoretical and practical implications are discussed for researchers and practitioners in the areas of decision making QMS, LEAN, and future research is suggested. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=human%20bias" title="human bias">human bias</a>, <a href="https://publications.waset.org/abstracts/search?q=decision%20making" title=" decision making"> decision making</a>, <a href="https://publications.waset.org/abstracts/search?q=LEAN%20shipbuilding" title=" LEAN shipbuilding"> LEAN shipbuilding</a>, <a href="https://publications.waset.org/abstracts/search?q=quality%20management%20systems" title=" quality management systems"> quality management systems</a> </p> <a href="https://publications.waset.org/abstracts/3484/the-aspect-of-the-human-bias-in-decision-making-within-quality-management-systems-and-lean-theory" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/3484.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">547</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">79</span> Human Capital Mobility of a Skilled Workforce: A Need for a Future of Europe</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Tiron-Tudor%20Adriana">Tiron-Tudor Adriana</a>, <a href="https://publications.waset.org/abstracts/search?q=Farcas%20Teodora%20Viorica"> Farcas Teodora Viorica</a>, <a href="https://publications.waset.org/abstracts/search?q=Ciolomic%20Ioana%20Andreea"> Ciolomic Ioana Andreea</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The issue of human capital mobility inside Europe is still an open one. Even though there were created some tools in order to better move from one country to another to work and study the number of the people doing this is very low because of various factors presented in this paper. The "rethinking educational" agenda of the European Commission has open the floor for new projects which can create steps towards a European language for skills and competences, qualifications. One of these projects is the Partnership for Exchange of experience in Student on-the-job Training. As part of this project, we are interested to see the situation of the human capital inside EU and the elements that were created until now to support this mobility. Also, the main objective of the project is to make a comparison between the four countries involved in PEST project (Romania, Hungary, Finland, and Estonia), at the education and internship level. The results are helpful for the follow of the project, for identifying where changes can be done and need to be done. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ECVET" title="ECVET">ECVET</a>, <a href="https://publications.waset.org/abstracts/search?q=human%20capital%20mobility" title=" human capital mobility"> human capital mobility</a>, <a href="https://publications.waset.org/abstracts/search?q=partnership%20exchange" title=" partnership exchange"> partnership exchange</a>, <a href="https://publications.waset.org/abstracts/search?q=students%20on%20the%20job%20mobility" title=" students on the job mobility"> students on the job mobility</a>, <a href="https://publications.waset.org/abstracts/search?q=vocational%20education%20and%20training" title=" vocational education and training"> vocational education and training</a> </p> <a href="https://publications.waset.org/abstracts/26907/human-capital-mobility-of-a-skilled-workforce-a-need-for-a-future-of-europe" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/26907.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">424</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">78</span> Outstanding Lubricant Using Fluorographene as an Extreme Pressure Additive</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Adriana%20Hernandez-Martinez">Adriana Hernandez-Martinez</a>, <a href="https://publications.waset.org/abstracts/search?q=Edgar%20D.%20Ramon-Raygoza"> Edgar D. Ramon-Raygoza</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Currently, there has been a great interest, during the last years, on graphene due to its lubricant properties on friction and antiwear processes. Likewise, fluorographene has also been gaining renown due to its excellent chemical and physical properties which have been mostly applied in the electronics industry. Nevertheless, its tribological properties haven’t been analyzed thoroughly. In this paper, fluorographene was examined as an extreme pressure additive and the nano lubricant made with a cutting fluid and fluorographene in the range of 0.01-0.5% wt, which proved to withstand 53.78% more pounds than the conventional product and 7.12% more than the nano lubricant with graphene in a range between 0.01-0.5% wt. Said extreme pressure test was carried out with a Pin and Vee Block Tribometer following an ASTM D3233A test. The fluorographene used has a low C/F ratio, which reflects a greater presence of atomic fluorine and its low oxygen percentage, supports the substitution of oxygen-containing groups by fluorine. XPS Spectra shows high atomic fluorine content of 56.12%, and SEM analysis details the formation of long and clear crystalline structures, in the fluorographene used. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=extreme%20pressure%20additive" title="extreme pressure additive">extreme pressure additive</a>, <a href="https://publications.waset.org/abstracts/search?q=fluorographene" title=" fluorographene"> fluorographene</a>, <a href="https://publications.waset.org/abstracts/search?q=nanofluids" title=" nanofluids"> nanofluids</a>, <a href="https://publications.waset.org/abstracts/search?q=nanolubricant" title=" nanolubricant"> nanolubricant</a> </p> <a href="https://publications.waset.org/abstracts/105687/outstanding-lubricant-using-fluorographene-as-an-extreme-pressure-additive" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/105687.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">125</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">77</span> Investigation of Polymer Composite for High Dose Dosimetry</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Esther%20Lorrayne%20%20M.%20Pereira">Esther Lorrayne M. Pereira</a>, <a href="https://publications.waset.org/abstracts/search?q=Adriana%20S.%20M.%20Batista"> Adriana S. M. Batista</a>, <a href="https://publications.waset.org/abstracts/search?q=Fab%C3%ADola%20A.%20S.%20Ribeiro"> Fabíola A. S. Ribeiro</a>, <a href="https://publications.waset.org/abstracts/search?q=Adelina%20P.%20Santos"> Adelina P. Santos</a>, <a href="https://publications.waset.org/abstracts/search?q=Luiz%20O.%20Faria"> Luiz O. Faria</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this work we have prepared nanocomposites made by mixing Poli (vinilidene fluoride) (PVDF), zirconium oxide (ZrO₂) and multi–walled carbon nanotubes (MWCNTs) aiming to find dosimetric properties for applications in high dose dosimetry. The samples were irradiated with a Co-60 source at constant dose rate (16.7 kGy/h), with doses ranging from 100 to 2750 kGy. The UV-Vis and FTIR spectrophotometry have been used to monitor the appearing of C=C conjugated bonds and radio-oxidation of carbon (C=O). FTIR spectrometry has that the absorbance intensities at 1715 cm⁻¹ and 1730 cm⁻¹ can be used for high dosimetry purposes for gamma doses ranging from 500 to 2750 kGy. In this range, it is possible to observe a linear relationship between Abs & Dose. Fading of signal was evaluated for one month and reproducibility in 2000 kGy dose. Scanning Electron Microscopy (SEM) and Energy-dispersive X-ray spectroscopy (EDX) was used for evaluated the dispersion ZrO₂ and MWCNT in the matrix of the PVDF. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=polymer" title="polymer">polymer</a>, <a href="https://publications.waset.org/abstracts/search?q=composite" title=" composite"> composite</a>, <a href="https://publications.waset.org/abstracts/search?q=high%20dose%20dosimetry" title=" high dose dosimetry"> high dose dosimetry</a>, <a href="https://publications.waset.org/abstracts/search?q=PVDF%2FZrO%E2%82%82%2FMWCNT" title=" PVDF/ZrO₂/MWCNT"> PVDF/ZrO₂/MWCNT</a> </p> <a href="https://publications.waset.org/abstracts/65263/investigation-of-polymer-composite-for-high-dose-dosimetry" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/65263.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">289</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">76</span> Broiler Chickens Meat Qualities and Death on Arrival (DOA) In-Transit in Brazilian Tropical Conditions</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Arlan%20S.%20Freitas">Arlan S. Freitas</a>, <a href="https://publications.waset.org/abstracts/search?q=Leila%20M.%20Carvalho"> Leila M. Carvalho</a>, <a href="https://publications.waset.org/abstracts/search?q=Adriana%20L.%20Soares"> Adriana L. Soares</a>, <a href="https://publications.waset.org/abstracts/search?q=Arnoud%20Neto"> Arnoud Neto</a>, <a href="https://publications.waset.org/abstracts/search?q=Marta%20S.%20Madruga"> Marta S. Madruga</a>, <a href="https://publications.waset.org/abstracts/search?q=Rafael%20H.%20Carvalho"> Rafael H. Carvalho</a>, <a href="https://publications.waset.org/abstracts/search?q=Elza%20I.%20Ida"> Elza I. Ida</a>, <a href="https://publications.waset.org/abstracts/search?q=Massami%20Shimokomaki"> Massami Shimokomaki</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The objective of this work was to evaluate the influence of microclimatic profile of broiler transport trucks and holding time (340) min under commercial conditions over the breast meat quality and DOA (Dead On Arrival) in a tropical Brazilian regions as the NorthEast. In this particular region routinely the season is divided into dry and wet seasons. Three loads of 4,100 forty seven days old broiler were monitored from farm to slaughterhouse in a distance of 273 km (320 min), morning periods of August, September and October 2015 rainy days. Meat qualities were evaluated by determining the occurrence of PSE (pale, soft, exudative) meat and DFD (dark, firm, dry) meat. The percentage of DOA per loaded truck was determined by counting the dead broiler during the hanging step at the slaughtering plant. Results showed the occurrence of 26.30% of PSE and 2.49% of DFD and 0.45% of DOA. By having PSE- and DFD- meat means that the birds were under thermal and cold stress leading as consequence to a relative high DOA index. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=animal%20welfare" title="animal welfare">animal welfare</a>, <a href="https://publications.waset.org/abstracts/search?q=DFD" title=" DFD"> DFD</a>, <a href="https://publications.waset.org/abstracts/search?q=microclimatic%20profile" title=" microclimatic profile"> microclimatic profile</a>, <a href="https://publications.waset.org/abstracts/search?q=PSE" title=" PSE"> PSE</a> </p> <a href="https://publications.waset.org/abstracts/46722/broiler-chickens-meat-qualities-and-death-on-arrival-doa-in-transit-in-brazilian-tropical-conditions" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/46722.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">410</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">75</span> Effect of Gamma Irradiation on the Crystalline Structure of Poly(Vinylidene Fluoride)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Adriana%20Souza%20M.%20Batista">Adriana Souza M. Batista</a>, <a href="https://publications.waset.org/abstracts/search?q=Cl%C3%A1ubia%20Pereira"> Cláubia Pereira</a>, <a href="https://publications.waset.org/abstracts/search?q=Luiz%20O.%20Faria"> Luiz O. Faria</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The irradiation of polymeric materials has received much attention because it can produce diverse changes in chemical structure and physical properties. Thus, studying the chemical and structural changes of polymers is important in practice to achieve optimal conditions for the modification of polymers. The effect of gamma irradiation on the crystalline structure of poly(vinylidene fluoride) (PVDF) has been investigated using differential scanning calorimetry (DSC) and X-ray diffraction techniques (XRD). Gamma irradiation was carried out in atmosphere air with doses between 100 kGy at 3,000 kGy with a Co-60 source. In the melting thermogram of the samples irradiated can be seen a bimodal melting endotherm is detected with two melting temperature. The lower melting temperature is attributed to melting of crystals originally present and the higher melting peak due to melting of crystals reorganized upon heat treatment. These results are consistent with those obtained by XRD technique showing increasing crystallinity with increasing irradiation dose, although the melting latent heat is decreasing. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=differential%20scanning%20calorimetry" title="differential scanning calorimetry">differential scanning calorimetry</a>, <a href="https://publications.waset.org/abstracts/search?q=gamma%20irradiation" title=" gamma irradiation"> gamma irradiation</a>, <a href="https://publications.waset.org/abstracts/search?q=PVDF" title=" PVDF"> PVDF</a>, <a href="https://publications.waset.org/abstracts/search?q=X-ray%20diffraction%20technique" title=" X-ray diffraction technique"> X-ray diffraction technique</a> </p> <a href="https://publications.waset.org/abstracts/36098/effect-of-gamma-irradiation-on-the-crystalline-structure-of-polyvinylidene-fluoride" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/36098.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">401</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">74</span> Chitin Crystalline Phase Transition Promoted by Deep Eutectic Solvent</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Diana%20G.%20Ramirez-Wong">Diana G. Ramirez-Wong</a>, <a href="https://publications.waset.org/abstracts/search?q=Marius%20Ramirez"> Marius Ramirez</a>, <a href="https://publications.waset.org/abstracts/search?q=Regina%20Sanchez-Leija"> Regina Sanchez-Leija</a>, <a href="https://publications.waset.org/abstracts/search?q=Adriana%20Rugerio"> Adriana Rugerio</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20Araceli%20Mauricio-Sanchez"> R. Araceli Mauricio-Sanchez</a>, <a href="https://publications.waset.org/abstracts/search?q=Martin%20A.%20Hernandez-Landaverde"> Martin A. Hernandez-Landaverde</a>, <a href="https://publications.waset.org/abstracts/search?q=Arturo%20Carranza"> Arturo Carranza</a>, <a href="https://publications.waset.org/abstracts/search?q=John%20A.%20Pojman"> John A. Pojman</a>, <a href="https://publications.waset.org/abstracts/search?q=Josue%20D.%20Mota-Morales"> Josue D. Mota-Morales</a>, <a href="https://publications.waset.org/abstracts/search?q=Gabriel%20Luna-Barcenas"> Gabriel Luna-Barcenas</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Chitin films were prepared using alpha-chitin from shrimp shells as raw material and a simple method of precipitation-evaporation. Choline chloride: urea Deep Eutectic Solvent (DES) was used to disperse chitin and compared against hexafluoroisopropanol (HFIP). A careful analysis of the chemical and crystalline structure was followed along the synthesis of the films, revealing crystalline-phase transitions. The full conversion of alpha- to beta-, or alpha- to gamma-chitin structure were detected by XRD and NMR on the films. The synthesis of highly crystalline monophasic gamma-chitin films was achieved using a DES; whereas HFIP helps to promote the beta-phase. These results are encouraging to continue in the study of DES as good processing media to control the final properties of chitin based materials. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chitin" title="chitin">chitin</a>, <a href="https://publications.waset.org/abstracts/search?q=deep%20eutectic%20solvent" title=" deep eutectic solvent"> deep eutectic solvent</a>, <a href="https://publications.waset.org/abstracts/search?q=polymorph" title=" polymorph"> polymorph</a>, <a href="https://publications.waset.org/abstracts/search?q=phase%20transformation" title=" phase transformation"> phase transformation</a> </p> <a href="https://publications.waset.org/abstracts/48813/chitin-crystalline-phase-transition-promoted-by-deep-eutectic-solvent" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/48813.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">538</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">73</span> Characterization of Gamma Irradiated PVDF and PVDF/Graphene Oxide Composites by Spectroscopic Techniques</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Juliana%20V.%20Pereira">Juliana V. Pereira</a>, <a href="https://publications.waset.org/abstracts/search?q=Adriana%20S.%20M.%20Batista"> Adriana S. M. Batista</a>, <a href="https://publications.waset.org/abstracts/search?q=Jefferson%20P.%20Nascimento"> Jefferson P. Nascimento</a>, <a href="https://publications.waset.org/abstracts/search?q=Clasc%C3%ADdia%20A.%20Furtado"> Clascídia A. Furtado</a>, <a href="https://publications.waset.org/abstracts/search?q=Luiz%20O.%20Faria"> Luiz O. Faria</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The combination of the properties of graphene oxide (OG) and PVDF homopolymer makes their combined composite materials as multifunctional systems with great potential. Knowledge of the molecular structure is essential for better use. In this work, the degradation of PVDF polymer exposed to gamma irradiation in oxygen atmosphere in high dose rate has been studied and compared to degradation of PVDF/OG composites. The samples were irradiated with a Co-60 source at constant dose rate, with doses ranging from 100 kGy to 1,000 kGy. In FTIR data shown that the formation of oxidation products was at the both samples with formation of carbonyl and hydroxyl groups amongst the most prevalent products in the pure PVDF samples. In the other hand, the composites samples exhibit less presence of degradation products with predominant formation of carbonyl groups, these results also seen in the UV-Vis analysis. The results show that the samples of composites may have greater resistance to the irradiation process, since they have less degradation products than pure PVDF samples seen by spectroscopic techniques. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=gamma%20irradiation" title="gamma irradiation">gamma irradiation</a>, <a href="https://publications.waset.org/abstracts/search?q=PVDF" title=" PVDF"> PVDF</a>, <a href="https://publications.waset.org/abstracts/search?q=PVDF%2FOG%20composites" title=" PVDF/OG composites"> PVDF/OG composites</a>, <a href="https://publications.waset.org/abstracts/search?q=spectroscopic%20techniques" title=" spectroscopic techniques"> spectroscopic techniques</a> </p> <a href="https://publications.waset.org/abstracts/36096/characterization-of-gamma-irradiated-pvdf-and-pvdfgraphene-oxide-composites-by-spectroscopic-techniques" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/36096.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">571</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">72</span> Relationships between Actors within Business Ecosystems That Adopt Circular Strategies: A Systematic Literature Review</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sophia%20Barquete">Sophia Barquete</a>, <a href="https://publications.waset.org/abstracts/search?q=Adriana%20H.%20Trevisan"> Adriana H. Trevisan</a>, <a href="https://publications.waset.org/abstracts/search?q=Janaina%20Mascarenhas"> Janaina Mascarenhas</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The circular economy (CE) aims at the cycling of resources through restorative and regenerative strategies. To achieve circularity, coordination of several actors who have different responsibilities is necessary. The interaction among multiple actors allows the connection between the CE and business ecosystem research fields. Although fundamental, the relationships between actors within an ecosystem to foster circularity are not deeply explored in the literature. The objective of this study was to identify the possibilities of cooperation, competition, or even coopetition among the members of business ecosystems that adopt circular strategies. In particular, the motivations that make these actors interact to achieve a circular economy were investigated. A systematic literature review was adopted to select business ecosystem cases that adopt circular strategies. As a result, several motivations were identified for actors to engage in relationships within ecosystems, such as sharing knowledge and infrastructure, developing products with a circular design, promoting reverse logistics, among others. The results suggest that partnerships between actors are, in fact, important for the implementation of circular strategies. In order to achieve a complete and circular solution, actors must be able to clearly understand their roles and relationships within the network so that they can establish new partnerships or reframe those already established. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=business%20ecosystem" title="business ecosystem">business ecosystem</a>, <a href="https://publications.waset.org/abstracts/search?q=circular%20economy" title=" circular economy"> circular economy</a>, <a href="https://publications.waset.org/abstracts/search?q=cooperation" title=" cooperation"> cooperation</a>, <a href="https://publications.waset.org/abstracts/search?q=coopetition" title=" coopetition"> coopetition</a>, <a href="https://publications.waset.org/abstracts/search?q=competition" title=" competition"> competition</a> </p> <a href="https://publications.waset.org/abstracts/142483/relationships-between-actors-within-business-ecosystems-that-adopt-circular-strategies-a-systematic-literature-review" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/142483.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">226</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">71</span> Preliminary Studies of MWCNT/PVDF Polymer Composites</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Esther%20Lorrayne%20M.%20Pereira">Esther Lorrayne M. Pereira</a>, <a href="https://publications.waset.org/abstracts/search?q=Adriana%20Souza%20M.%20Batista"> Adriana Souza M. Batista</a>, <a href="https://publications.waset.org/abstracts/search?q=Fab%C3%ADola%20A.%20S.%20Ribeiro"> Fabíola A. S. Ribeiro</a>, <a href="https://publications.waset.org/abstracts/search?q=Adelina%20P.%20Santos"> Adelina P. Santos</a>, <a href="https://publications.waset.org/abstracts/search?q=Clasc%C3%ADdia%20A.%20Furtado"> Clascídia A. Furtado</a>, <a href="https://publications.waset.org/abstracts/search?q=Luiz%20O.%20Faria"> Luiz O. Faria</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The combination of multi–walled carbon nanotubes (MWCNTs) with polymers offers an attractive route to reinforce the macromolecular compounds as well as the introduction of new properties based on morphological modifications or electronic interactions between the two constituents. As they are only a few nanometers in dimension, it offers ultra-large interfacial area per volume between the nano-element and polymer matrix. Nevertheless, the use of MWCNTs as a rough material in different applications has been largely limited by their poor processability, insolubility, and infusibility. Studies concerning the nanofiller reinforced polymer composites are justified in an attempt to overcome these limitations. This work presents one preliminary study of MWCNTs dispersion into the PVDF homopolymer. For preparation, the composite components were diluted in n,n-dimethylacetamide (DMAc) with mechanical agitation assistance. After complete dilution, followed by slow evaporation of the solvent at 60°C, the samples were dried. Films of about 80 μm were obtained. FTIR and UV-Vis spectroscopic techniques were used to characterize the nanocomposites. The appearance of absorption bands in the FTIR spectra of nanofilled samples, when compared to the spectrum of pristine PVDF samples, are discussed and compared with the UV-Vis measurements. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=composites%20materials" title="composites materials">composites materials</a>, <a href="https://publications.waset.org/abstracts/search?q=FTIR" title=" FTIR"> FTIR</a>, <a href="https://publications.waset.org/abstracts/search?q=MWNTs" title=" MWNTs"> MWNTs</a>, <a href="https://publications.waset.org/abstracts/search?q=PVDF" title=" PVDF"> PVDF</a>, <a href="https://publications.waset.org/abstracts/search?q=UV-vis" title=" UV-vis"> UV-vis</a> </p> <a href="https://publications.waset.org/abstracts/36095/preliminary-studies-of-mwcntpvdf-polymer-composites" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/36095.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">448</span> </span> </div> </div> <ul class="pagination"> <li class="page-item disabled"><span class="page-link">&lsaquo;</span></li> <li class="page-item active"><span class="page-link">1</span></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Adriana%20Koles%C3%A1rov%C3%A1&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Adriana%20Koles%C3%A1rov%C3%A1&page=3">3</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Adriana%20Koles%C3%A1rov%C3%A1&page=4">4</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Adriana%20Koles%C3%A1rov%C3%A1&page=2" rel="next">&rsaquo;</a></li> </ul> </div> </main> <footer> <div id="infolinks" 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