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Sykora</title> <meta name="description" content="Search results for: Viktor Sykora"> <meta name="keywords" content="Viktor Sykora"> <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 navbar-toggler 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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="Viktor Sykora"> <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> 34</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Viktor Sykora</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">34</span> New Ethanol Method for Soft Tissue Imaging in Micro-CT</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Matej%20Patzelt">Matej Patzelt</a>, <a href="https://publications.waset.org/abstracts/search?q=Jan%20Dudak"> Jan Dudak</a>, <a href="https://publications.waset.org/abstracts/search?q=Frantisek%20Krejci"> Frantisek Krejci</a>, <a href="https://publications.waset.org/abstracts/search?q=Jan%20Zemlicka"> Jan Zemlicka</a>, <a href="https://publications.waset.org/abstracts/search?q=Vladimir%20Musil"> Vladimir Musil</a>, <a href="https://publications.waset.org/abstracts/search?q=Jitka%20Riedlova"> Jitka Riedlova</a>, <a href="https://publications.waset.org/abstracts/search?q=Viktor%20Sykora"> Viktor Sykora</a>, <a href="https://publications.waset.org/abstracts/search?q=Jana%20Mrzilkova"> Jana Mrzilkova</a>, <a href="https://publications.waset.org/abstracts/search?q=Petr%20Zach"> Petr Zach</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Introduction: Micro-CT is well used for examination of bone structures and teeth. On the other hand visualization of the soft tissues is still limited. The goal of our study was to create a new fixation method for soft tissue imaging in micro-CT. Methodology: We used organs of 18 mice - heart, lungs, kidneys, liver and brain, which we fixated in ethanol after meticulous preparation. We fixated organs in different concentrations of ethanol and for different period of time. We used three types of ethanol concentration - 97%, 50% and ascending ethanol concentration (25%, 50%, 75%, 97% each for 12 hours). Fixated organs were scanned after 72 hours, 168 hours and 336 hours period of fixation. We scanned all specimens in micro-CT MARS (Medipix All Resolution System). Results: Ethanol method provided contrast enhancement in all studied organs in all used types of fixation. Fixation in 97% ethanol provided very fast fixation and the contrast among the tissues was visible already after 72 hours of fixation. Fixation for the period of 168 and 336 hours gave better details, especially in lung tissue, where alveoli were visualized. On the other hand, this type of fixation caused organs to petrify. Fixation in 50% ethanol provided best results in 336 hours fixation, details were visualized better than in 97% ethanol and samples were not as hard as in fixation in 97% ethanol. Best results were obtained in fixation in ascending ethanol concentration. All organs were visualized in great details, best-visualized organ was heart, where trabeculae and valves were visible. In this type of fixation, organs stayed soft for whole time. Conclusion: New ethanol method is a great option for soft tissue fixation as well as the method for enhancing contrast among tissues in organs. The best results were obtained with fixation of the organs in ascending ethanol concentration, the best visualized organ was the heart. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=x-ray%20imaging" title="x-ray imaging">x-ray imaging</a>, <a href="https://publications.waset.org/abstracts/search?q=small%20animals" title=" small animals"> small animals</a>, <a href="https://publications.waset.org/abstracts/search?q=ethanol" title=" ethanol"> ethanol</a>, <a href="https://publications.waset.org/abstracts/search?q=ex-vivo" title=" ex-vivo"> ex-vivo</a> </p> <a href="https://publications.waset.org/abstracts/47376/new-ethanol-method-for-soft-tissue-imaging-in-micro-ct" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/47376.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">321</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">33</span> The Current State Of Human Gait Simulator Development </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Stepanov%20Ivan">Stepanov Ivan</a>, <a href="https://publications.waset.org/abstracts/search?q=Musalimov%20Viktor"> Musalimov Viktor</a>, <a href="https://publications.waset.org/abstracts/search?q=Monahov%20Uriy"> Monahov Uriy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This report examines the current state of human gait simulator development based on the human hip joint model. This unit will create a database of human gait types, useful for setting up and calibrating mechano devices, as well as the creation of new systems of rehabilitation, exoskeletons and walking robots. The system has ample opportunity to configure the dimensions and stiffness, while maintaining relative simplicity. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hip%20joint" title="hip joint">hip joint</a>, <a href="https://publications.waset.org/abstracts/search?q=human%20gait" title=" human gait"> human gait</a>, <a href="https://publications.waset.org/abstracts/search?q=physiotherapy" title=" physiotherapy"> physiotherapy</a>, <a href="https://publications.waset.org/abstracts/search?q=simulation" title=" simulation"> simulation</a> </p> <a href="https://publications.waset.org/abstracts/29360/the-current-state-of-human-gait-simulator-development" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/29360.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">406</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">32</span> Nonlinear Power Measurement Algorithm of the Input Mix Components of the Noise Signal and Pulse Interference</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alexey%20V.%20Klyuev">Alexey V. Klyuev</a>, <a href="https://publications.waset.org/abstracts/search?q=Valery%20P.%20Samarin"> Valery P. Samarin</a>, <a href="https://publications.waset.org/abstracts/search?q=Viktor%20F.%20Klyuev"> Viktor F. Klyuev</a>, <a href="https://publications.waset.org/abstracts/search?q=Andrey%20V.%20Klyuev"> Andrey V. Klyuev</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A power measurement algorithm of the input mix components of the noise signal and pulse interference is considered. The algorithm efficiency analysis has been carried out for different interference to signal ratio. Algorithm performance features have been explored by numerical experiment results. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=noise%20signal" title="noise signal">noise signal</a>, <a href="https://publications.waset.org/abstracts/search?q=pulse%20interference" title=" pulse interference"> pulse interference</a>, <a href="https://publications.waset.org/abstracts/search?q=signal%20power" title=" signal power"> signal power</a>, <a href="https://publications.waset.org/abstracts/search?q=spectrum%20width" title=" spectrum width"> spectrum width</a>, <a href="https://publications.waset.org/abstracts/search?q=detection" title=" detection"> detection</a> </p> <a href="https://publications.waset.org/abstracts/1915/nonlinear-power-measurement-algorithm-of-the-input-mix-components-of-the-noise-signal-and-pulse-interference" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/1915.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">337</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">31</span> A Clinician’s Perspective on Electroencephalography Annotation and Analysis for Driver Drowsiness Estimation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ruxandra%20Aursulesei">Ruxandra Aursulesei</a>, <a href="https://publications.waset.org/abstracts/search?q=David%20O%E2%80%99Callaghan"> David O’Callaghan</a>, <a href="https://publications.waset.org/abstracts/search?q=Cian%20Ryan"> Cian Ryan</a>, <a href="https://publications.waset.org/abstracts/search?q=Diarmaid%20O%E2%80%99Cualain"> Diarmaid O’Cualain</a>, <a href="https://publications.waset.org/abstracts/search?q=Viktor%20Varkarakis"> Viktor Varkarakis</a>, <a href="https://publications.waset.org/abstracts/search?q=Alina%20Sultana"> Alina Sultana</a>, <a href="https://publications.waset.org/abstracts/search?q=Joseph%20Lemley"> Joseph Lemley</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Human errors caused by drowsiness are among the leading causes of road accidents. Neurobiological research gives information about the electrical signals emitted by neurons firing within the brain. Electrical signal frequencies can be determined by attaching bio-sensors to the head surface. By observing the electrical impulses and the rhythmic interaction of neurons with each other, we can predict the mental state of a person. In this paper, we aim to better understand intersubject and intrasubject variability in terms of electrophysiological patterns that occur at the onset of drowsiness and their evolution with the decreasing of vigilance. The purpose is to lay the foundations for an algorithm that detects the onset of drowsiness before the physical signs become apparent. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=electroencephalography" title="electroencephalography">electroencephalography</a>, <a href="https://publications.waset.org/abstracts/search?q=drowsiness" title=" drowsiness"> drowsiness</a>, <a href="https://publications.waset.org/abstracts/search?q=ADAS" title=" ADAS"> ADAS</a>, <a href="https://publications.waset.org/abstracts/search?q=annotations" title=" annotations"> annotations</a>, <a href="https://publications.waset.org/abstracts/search?q=clinician" title=" clinician"> clinician</a> </p> <a href="https://publications.waset.org/abstracts/156014/a-clinicians-perspective-on-electroencephalography-annotation-and-analysis-for-driver-drowsiness-estimation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/156014.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">115</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">30</span> The Effect of Arabic Gum on Polyethersulfone Membranes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yehia%20Manawi">Yehia Manawi</a>, <a href="https://publications.waset.org/abstracts/search?q=Viktor%20Kochkodan"> Viktor Kochkodan</a>, <a href="https://publications.waset.org/abstracts/search?q=Muataz%20Hussien"> Muataz Hussien</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, the effect of adding Arabic Gum (AG) to the dope solutions of polyethersulfone (PES) was studied. The aim of adding AG is to enhance the properties of ultrafiltration membranes such as hydrophilicity, porosity and selectivity. several AG loading (0.1-3.0 wt.%) in PES/ N-Methyl-2-pyrrolidone (NMP) casting solutions were prepared to fabricate PES membranes using phase inversion technique. The surface morphology, hydrophilicity and selectivity of the cast PES/AG membranes were analyzed using scanning electron microscopy and contact angle measurements. The selectivity of the fabricated membranes was also tested by filtration of oil solutions (1 ppm) and found to show quite high removal efficiency. The effect of adding AG to PES membranes was found to increase the permeate flux and porosity as well as reducing surface roughness and the contact angle of the membranes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=antifouling" title="antifouling">antifouling</a>, <a href="https://publications.waset.org/abstracts/search?q=Arabic%20gum" title=" Arabic gum"> Arabic gum</a>, <a href="https://publications.waset.org/abstracts/search?q=polyethersulfone%20membrane" title=" polyethersulfone membrane"> polyethersulfone membrane</a>, <a href="https://publications.waset.org/abstracts/search?q=ultrafiltration" title=" ultrafiltration"> ultrafiltration</a> </p> <a href="https://publications.waset.org/abstracts/69493/the-effect-of-arabic-gum-on-polyethersulfone-membranes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/69493.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">29</span> Robust Adaptation to Background Noise in Multichannel C-OTDR Monitoring Systems</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Andrey%20V.%20Timofeev">Andrey V. Timofeev</a>, <a href="https://publications.waset.org/abstracts/search?q=Viktor%20M.%20Denisov"> Viktor M. Denisov</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A robust sequential nonparametric method is proposed for adaptation to background noise parameters for real-time. The distribution of background noise was modelled like to Huber contamination mixture. The method is designed to operate as an adaptation-unit, which is included inside a detection subsystem of an integrated multichannel monitoring system. The proposed method guarantees the given size of a nonasymptotic confidence set for noise parameters. Properties of the suggested method are rigorously proved. The proposed algorithm has been successfully tested in real conditions of a functioning C-OTDR monitoring system, which was designed to monitor railways. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=guaranteed%20estimation" title="guaranteed estimation">guaranteed estimation</a>, <a href="https://publications.waset.org/abstracts/search?q=multichannel%20monitoring%20systems" title=" multichannel monitoring systems"> multichannel monitoring systems</a>, <a href="https://publications.waset.org/abstracts/search?q=non-asymptotic%20confidence%20set" title=" non-asymptotic confidence set"> non-asymptotic confidence set</a>, <a href="https://publications.waset.org/abstracts/search?q=contamination%20mixture" title=" contamination mixture"> contamination mixture</a> </p> <a href="https://publications.waset.org/abstracts/28516/robust-adaptation-to-background-noise-in-multichannel-c-otdr-monitoring-systems" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/28516.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">430</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">28</span> The Use of Arabic Gum Mixed with Carbon Nanotubes Functionalized with Dodecylamine to Fabricate Superior Ultrafiltration Membranes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yehia%20Manawi">Yehia Manawi</a>, <a href="https://publications.waset.org/abstracts/search?q=Viktor%20Kochkodan"> Viktor Kochkodan</a>, <a href="https://publications.waset.org/abstracts/search?q=Muataz%20Hussien"> Muataz Hussien</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, the effect of adding Arabic Gum (AG) and carbon nanotubes functionalized with dodecylamine (CNT-DDA) to the casting solutions of polysulfone (PS) was investigated. The aim of adding AG and CNT-DDA was to enhance the properties of ultrafiltration membranes such as hydrophilicity, porosity and selectivity. Different CNT-DDA loadings (0.1-3.0 wt.%) in 2 wt.% AG were added to PS/dimethylacetamide (DMAc) casting solutions to prepare PS membranes using phase inversion technique. The surface morphology, hydrophilicity and selectivity of the cast PS/AG/CNT-DDA membranes were analyzed using scanning electron microscopy and contact angle measurements. The selectivity of the fabricated membranes was also tested by filtration of BSA solutions (1 ppm) and found to show quite high removal efficiency. The effect of adding AG and CNT-DDA to PS membranes was found to increase the hydrophilicity, porosity and hence the permeate flux of the fabricated membranes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Arabic%20gum" title="Arabic gum">Arabic gum</a>, <a href="https://publications.waset.org/abstracts/search?q=hydrophilicity" title=" hydrophilicity"> hydrophilicity</a>, <a href="https://publications.waset.org/abstracts/search?q=polysulfone%20membrane" title=" polysulfone membrane"> polysulfone membrane</a>, <a href="https://publications.waset.org/abstracts/search?q=ultrafiltration" title=" ultrafiltration"> ultrafiltration</a> </p> <a href="https://publications.waset.org/abstracts/69708/the-use-of-arabic-gum-mixed-with-carbon-nanotubes-functionalized-with-dodecylamine-to-fabricate-superior-ultrafiltration-membranes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/69708.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">240</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">27</span> The Criteria of the Aesthetic Quality of Art: Contemporary Photography</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Artem%20Surkov">Artem Surkov</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This work is devoted to a problem of aesthetic quality determinism in the context of contemporary art. The object of study is photography regarding as a kind of art which demands specific system of quality marking. Objective: To define aesthetic criteria in photography art. For current searching different kind of texts by such powerful authors like Clement Greenberg and Rosalind Krauss, Theodor Adorno and Herbert Marcuse, Charlott Cotton and Boris Groys, Viktor Miziano and Ekaterina Degot' were analyzed. Before all, there are two different kinds of photography: the classic art photography (by Ansel Adams) and the photography as kind of art (by Andreas Gursky). In this text we are talking about the photography as kind of art. The main principle of current searching is synthesis of two different approaches: modernism and postmodernism. This method helps us to define uniform criteria of aesthetic quality in photography as kind of art. The criteria mentioned in conclusion paragraph are: aesthetic rationality, aesthetic economy, awareness (using photographic technics or references), and intention to go beyond form, practice and method. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=aesthetic" title="aesthetic">aesthetic</a>, <a href="https://publications.waset.org/abstracts/search?q=art" title=" art"> art</a>, <a href="https://publications.waset.org/abstracts/search?q=criteria%20of%20quality" title=" criteria of quality"> criteria of quality</a>, <a href="https://publications.waset.org/abstracts/search?q=photography" title=" photography"> photography</a>, <a href="https://publications.waset.org/abstracts/search?q=visually" title=" visually"> visually</a> </p> <a href="https://publications.waset.org/abstracts/40285/the-criteria-of-the-aesthetic-quality-of-art-contemporary-photography" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/40285.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">418</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">26</span> Creating Coherence: Lessons from Bali on Achieving a Coherent Life Through Service</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Veronica%20Basilio">Veronica Basilio</a>, <a href="https://publications.waset.org/abstracts/search?q=Shuting%20Palomo"> Shuting Palomo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This research paper explores the psychological concept of coherence and wellbeing. In particular, we focus on the relationship between individual well-being and community development. The focus setting for the research is Bali, Indonesia. The major finding of our research is: a coherent life can be achieved through living a life motivated by service to others, which contributes to community development and wellbeing. Coherence occurs when values are consistent with one’s thoughts, words, and actions. According to Antonovsky’s salutogenic theory, a sense of coherence is significant to psychological well-being. The ability to cope with life’s stressors is based on how comprehensive, manageable, and meaningful one’s sense of coherence is. The methodology for the research draws on an ethnographic approach with particular attention to participant observation and in-depth interviews within the context of village and family life in Bali. The research highlights Viktor Frankl’s ideas on self-actualization that is achieved through a life of service to others. The research also focuses on the individual’s ability to shift their perspective in the face of adversity, which contributes to individual development. Through personal transformation, one can be committed to serving others, which in the end, is the foundation of a coherent life and community development. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=psychology" title="psychology">psychology</a>, <a href="https://publications.waset.org/abstracts/search?q=bali" title=" bali"> bali</a>, <a href="https://publications.waset.org/abstracts/search?q=coherence" title=" coherence"> coherence</a>, <a href="https://publications.waset.org/abstracts/search?q=well-being" title=" well-being"> well-being</a>, <a href="https://publications.waset.org/abstracts/search?q=sociology" title=" sociology"> sociology</a> </p> <a href="https://publications.waset.org/abstracts/167015/creating-coherence-lessons-from-bali-on-achieving-a-coherent-life-through-service" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/167015.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">88</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">25</span> Produce High-Quality Activated Carbon with a Large Surface Area from Date Seeds Biomass for Water Treatment</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rashad%20Al-Gaashani">Rashad Al-Gaashani</a>, <a href="https://publications.waset.org/abstracts/search?q=Viktor%20Kochkodan"> Viktor Kochkodan</a>, <a href="https://publications.waset.org/abstracts/search?q=Jenny%20Lawler"> Jenny Lawler</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Physico-chemical activation method wasused to produce high-quality activated carbon (AC) with a large surface area of about 2000 m2/g from low-cost and abundant biomasswastes in Qatar, namely date seeds. X-Ray diffraction (XRD), scanning electron spectroscopy (SEM), energy dispersive X-Ray spectroscopy (EDS), and Brunauer-Emmett-Teller (BET) surface area analysis were used to evaluate the AC samples. AC produced from date seeds have a wide range of the pores available, including micro- andnano-pores. This type of AC with a well-developed pore structure may be very attractive for different applications, including air and water purification from micro and nano pollutants. Heavy metalsiron (III) and copper (II) ions were removed from wastewater using the AC producedusinga batch adsorption technique. The AC produced from date seeds biomass wastes show high removal of heavy metals such as iron (III) ions (100%) and copper (II) ions (97.25%). The highest removal of copper (II) ions (100%) with AC produced from date seeds was found at pH 8, whereas the lowest removal (22.63%) occurred at pH 2. The effect of adsorption time, adsorbent dose, pH on the removal of heavy metalswere studied. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=activated%20carbon" title="activated carbon">activated carbon</a>, <a href="https://publications.waset.org/abstracts/search?q=date%20seeds" title=" date seeds"> date seeds</a>, <a href="https://publications.waset.org/abstracts/search?q=biomass" title=" biomass"> biomass</a>, <a href="https://publications.waset.org/abstracts/search?q=heavy%20metals%20removal" title=" heavy metals removal"> heavy metals removal</a>, <a href="https://publications.waset.org/abstracts/search?q=water%20treatment" title=" water treatment"> water treatment</a> </p> <a href="https://publications.waset.org/abstracts/152423/produce-high-quality-activated-carbon-with-a-large-surface-area-from-date-seeds-biomass-for-water-treatment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/152423.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">102</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">24</span> Salter Pelvic Osteotomy for the Treatment of Developmental Dysplasia of the Hip: Assessment of Postoperative Results and Risk Factors</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Suvorov%20Vasyl">Suvorov Vasyl</a>, <a href="https://publications.waset.org/abstracts/search?q=Filipchuk%20Viktor"> Filipchuk Viktor</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: If non-surgical treatment of developmental dysplasia of the hip (DDH) fails or if DDH is late-detected, surgery is necessary. Salter pelvic osteotomy (SPO) is an effective surgical option for such cases. The objectives of this study were to assess the results after SPO, evaluate risk factors, and reveal those radiological parameters that may correlate with the results. Mid- and long-term postoperative results after SPO in 17 patients (22 hip joints) were analyzed. Risk factors included those that do not depend on the surgeon (patient's age, value of the acetabular index (AI) preoperatively, DDH Tonnis grade) and those that depend on the surgeon (amount of AI correction). To radiological parameters which may correlate with the amount of AI correction, we referred distance "d" and the lateral rotation angle. Results: SPO allows performing AI correction in ranges 24.1 ± 6.5°. Excellent and good clinical results were obtained in 95.5% of patients; excellent and good radiological results in 86.4% of patients. Risk factors that do not depend on the surgeon were older patient’s age and higher preoperative AI values (p < 0.05). The risk factor that depends on the surgeon was the amount of AI correction (p < 0.05). The distance "d" was recognized as a radiological parameter that may indicate sufficient AI correction (p < 0.05). Conclusion: In older patients with a higher preoperative AI value, the results will be predictably worse. The surgeon may influence the result with a greater amount of AI correction (which may also be indicated radiologically by the distance "d" values). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=developmental%20dysplasia%20of%20the%20hip" title="developmental dysplasia of the hip">developmental dysplasia of the hip</a>, <a href="https://publications.waset.org/abstracts/search?q=results" title=" results"> results</a>, <a href="https://publications.waset.org/abstracts/search?q=risk%20factor" title=" risk factor"> risk factor</a>, <a href="https://publications.waset.org/abstracts/search?q=pelvic%20osteotomy" title=" pelvic osteotomy"> pelvic osteotomy</a>, <a href="https://publications.waset.org/abstracts/search?q=salter%20osteotomy" title=" salter osteotomy"> salter osteotomy</a> </p> <a href="https://publications.waset.org/abstracts/147537/salter-pelvic-osteotomy-for-the-treatment-of-developmental-dysplasia-of-the-hip-assessment-of-postoperative-results-and-risk-factors" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/147537.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">131</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">23</span> Carbon Nanomaterials from Agricultural Wastes for Adsorption of Organic Pollutions</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Magdalena%20Blachnio">Magdalena Blachnio</a>, <a href="https://publications.waset.org/abstracts/search?q=Viktor%20Bogatyrov"> Viktor Bogatyrov</a>, <a href="https://publications.waset.org/abstracts/search?q=Mariia%20Galaburda"> Mariia Galaburda</a>, <a href="https://publications.waset.org/abstracts/search?q=Anna%20Derylo-Marczewska"> Anna Derylo-Marczewska</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Agricultural waste materials from traditional oil mill and after extraction of natural raw materials in supercritical conditions were used for the preparation of carbon nanomaterials (activated carbons) by two various methods. Chemical activation using acetic acid and physical activation with a gaseous agent (carbon dioxide) were chosen as mild and environmentally friendly ones. The effect of influential factors: type of raw material, temperature and activation agent on the porous structure characteristics of the materials was discussed by using N₂ adsorption/desorption isotherms at 77 K. Furthermore scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) were employed to examine the physicochemical properties of the obtained sorbents. Selection of a raw material and an optimization of the conditions of the synthesis process, allowed to obtain the cheap sorbents with a targeted distribution of pores enabling effective adsorption of the model organic pollutants carried out in the multicomponent systems. Adsorption behavior (capacity and rate) of the chosen activated carbons was estimated by utilizing Crystal violet (CV), 4-chlorophenoxyacetic acid (4-CPA), 2.4-dichlorophenoxyacetic acid (2.4-D) as the adsorbates. Both rate and adsorption capacity of the organics on the sorbents evidenced that the activated carbons could be effectively used in sewage treatment plants. The mechanisms of organics adsorption were studied and correlated with activated carbons properties. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=activated%20carbon" title="activated carbon">activated carbon</a>, <a href="https://publications.waset.org/abstracts/search?q=adsorption%20equilibrium" title=" adsorption equilibrium"> adsorption equilibrium</a>, <a href="https://publications.waset.org/abstracts/search?q=adsorption%20kinetics" title=" adsorption kinetics"> adsorption kinetics</a>, <a href="https://publications.waset.org/abstracts/search?q=organics%20adsorption" title=" organics adsorption"> organics adsorption</a> </p> <a href="https://publications.waset.org/abstracts/90720/carbon-nanomaterials-from-agricultural-wastes-for-adsorption-of-organic-pollutions" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/90720.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">177</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">22</span> Breast Cancer as a Response to Distress in Women with or without a History of Precancerous Breast Disease</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Viacheslav%20Sushko">Viacheslav Sushko</a>, <a href="https://publications.waset.org/abstracts/search?q=Viktor%20Sushko"> Viktor Sushko</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Pre-cancerous breast diseases are pathological changes that precede the appearance of adenocarcinoma. The most common benign breast disease is mastopathy. We examined the life and disease history of 114 women aged 58-69 who were diagnosed with adenocarcinoma of the breast at different stages of development. They filled out the Reeder Scale to determine the level of stress. The results of the study revealed that 62 of them had mastopathy at the age of 30-45 years old. These women refused surgical treatment for mastopathy. Five to six years before their diagnosis of adenocarcinoma of the mammary gland, 84 women had experienced severe stress (death of a beloved close relative, torture accompanied by rape, prolonged stay in extreme conditions (under bombardment and bombardment). In the assessment of data from completed Reeder scales, 114 women had a high level of mental stress, with a score from 1-1.72. The 84 women who suffered from severe stress showed overeating or a significant decrease in food intake, insomnia, apathy, increased irritability and restlessness, loss of interest in sexual relationships, forgetfulness, difficulty in performing routine work, prolonged uncontrollable headaches, unexplained fatigue, heart pain, reduced capacity for work. In conclusion, it is important to provide psychotherapy for breast cancer patients as the diagnosis, and the different stages of treatment are very stressful. It is also advisable to see a psychiatrist at an early stage and prevent distress and treat precancerous breast disease. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=breast%20cancer" title="breast cancer">breast cancer</a>, <a href="https://publications.waset.org/abstracts/search?q=distress" title=" distress"> distress</a>, <a href="https://publications.waset.org/abstracts/search?q=mastopathy" title=" mastopathy"> mastopathy</a>, <a href="https://publications.waset.org/abstracts/search?q=severe%20stress" title=" severe stress"> severe stress</a> </p> <a href="https://publications.waset.org/abstracts/133809/breast-cancer-as-a-response-to-distress-in-women-with-or-without-a-history-of-precancerous-breast-disease" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/133809.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">135</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">21</span> Probabilistic Damage Tolerance Methodology for Solid Fan Blades and Discs</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Andrej%20Golowin">Andrej Golowin</a>, <a href="https://publications.waset.org/abstracts/search?q=Viktor%20Denk"> Viktor Denk</a>, <a href="https://publications.waset.org/abstracts/search?q=Axel%20Riepe"> Axel Riepe</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Solid fan blades and discs in aero engines are subjected to high combined low and high cycle fatigue loads especially around the contact areas between blade and disc. Therefore, special coatings (e.g. dry film lubricant) and surface treatments (e.g. shot peening or laser shock peening) are applied to increase the strength with respect to combined cyclic fatigue and fretting fatigue, but also to improve damage tolerance capability. The traditional deterministic damage tolerance assessment based on fracture mechanics analysis, which treats service damage as an initial crack, often gives overly conservative results especially in the presence of vibratory stresses. A probabilistic damage tolerance methodology using crack initiation data has been developed for fan discs exposed to relatively high vibratory stresses in cross- and tail-wind conditions at certain resonance speeds for limited time periods. This Monte-Carlo based method uses a damage databank from similar designs, measured vibration levels at typical aircraft operations and wind conditions and experimental crack initiation data derived from testing of artificially damaged specimens with representative surface treatment under combined fatigue conditions. The proposed methodology leads to a more realistic prediction of the minimum damage tolerance life for the most critical locations applicable to modern fan disc designs. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=combined%20fatigue" title="combined fatigue">combined fatigue</a>, <a href="https://publications.waset.org/abstracts/search?q=damage%20tolerance" title=" damage tolerance"> damage tolerance</a>, <a href="https://publications.waset.org/abstracts/search?q=engine" title=" engine"> engine</a>, <a href="https://publications.waset.org/abstracts/search?q=surface%20treatment" title=" surface treatment"> surface treatment</a> </p> <a href="https://publications.waset.org/abstracts/42578/probabilistic-damage-tolerance-methodology-for-solid-fan-blades-and-discs" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/42578.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">499</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">20</span> Winning the “Culture War”: Greater Hungary and the American Confederacy as Sites of Nostalgia, Mythology, and Problem-Making for the Far Right in the US and Hungary</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Grace%20Rademacher">Grace Rademacher</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Trauma” of the Kingdom of Hungary and the “Lost Cause” of the American Confederacy. Applying Nicole Maurantonio’s articulation of “confederate exceptionalism” and Svetlana Boym’s definition of “restorative nostalgia”, this article argues that, via memorialization and public discourse, both far right bodies flood their constituencies with narratives of nostalgia and martyrdom to sow existential anxieties about past and prophetic victimhood, all under the guise of protecting or restoring heritage. Linking this practice to gamification and conspiracy theorizing and following the work of Patrick Jagoda, this article identifies such industries of nostalgia as means by which the far right in both nations can partake in the “immanent and improvisational process of problem making.” Reified through monuments and references to the Trianon Trauma and the American confederacy, political actors “problem make” by alleging that they are victims of the West or the Left, subject to the cruel whims of liberalism and denial of historical legitimacy. In both nations, relying on their victimhood, pundits and politicians can appeal to white supremacists and distract citizens from legitimate active conflicts, such as wars or democratic rollbacks, redirecting them to fictional, mythical attacks on Hungarian or American society and civilization. This article will examine memorials and monuments as “lieux de memoire” and identify the purposeful similarities between the discourse of public figures and politicians such as María Schmidt, János Lázár, and Viktor Orbán, with that of Donald Trump and pundits such as Tucker Carlson. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=nationalism" title="nationalism">nationalism</a>, <a href="https://publications.waset.org/abstracts/search?q=political%20memory" title=" political memory"> political memory</a>, <a href="https://publications.waset.org/abstracts/search?q=white%20supremacy" title=" white supremacy"> white supremacy</a>, <a href="https://publications.waset.org/abstracts/search?q=trianon" title=" trianon"> trianon</a> </p> <a href="https://publications.waset.org/abstracts/165644/winning-the-culture-war-greater-hungary-and-the-american-confederacy-as-sites-of-nostalgia-mythology-and-problem-making-for-the-far-right-in-the-us-and-hungary" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/165644.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">76</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">19</span> Space Weather and Earthquakes: A Case Study of Solar Flare X9.3 Class on September 6, 2017</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Viktor%20Novikov">Viktor Novikov</a>, <a href="https://publications.waset.org/abstracts/search?q=Yuri%20Ruzhin"> Yuri Ruzhin</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The studies completed to-date on a relation of the Earth's seismicity and solar processes provide the fuzzy and contradictory results. For verification of an idea that solar flares can trigger earthquakes, we have analyzed a case of a powerful surge of solar flash activity early in September 2017 during approaching the minimum of 24th solar cycle was accompanied by significant disturbances of space weather. On September 6, 2017, a group of sunspots AR2673 generated a large solar flare of X9.3 class, the strongest flare over the past twelve years. Its explosion produced a coronal mass ejection partially directed towards the Earth. We carried out a statistical analysis of the catalogs of earthquakes USGS and EMSC for determination of the effect of solar flares on global seismic activity. New evidence of earthquake triggering due to the Sun-Earth interaction has been demonstrated by simple comparison of behavior of Earth's seismicity before and after the strong solar flare. The global number of earthquakes with magnitude of 2.5 to 5.5 within 11 days after the solar flare has increased by 30 to 100%. A possibility of electric/electromagnetic triggering of earthquake due to space weather disturbances is supported by results of field and laboratory studies, where the earthquakes (both natural and laboratory) were initiated by injection of electrical current into the Earth crust. For the specific case of artificial electric earthquake triggering the current density at a depth of earthquake, sources are comparable with estimations of a density of telluric currents induced by variation of space weather conditions due to solar flares. Acknowledgment: The work was supported by RFBR grant No. 18-05-00255. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=solar%20flare" title="solar flare">solar flare</a>, <a href="https://publications.waset.org/abstracts/search?q=earthquake%20activity" title=" earthquake activity"> earthquake activity</a>, <a href="https://publications.waset.org/abstracts/search?q=earthquake%20triggering" title=" earthquake triggering"> earthquake triggering</a>, <a href="https://publications.waset.org/abstracts/search?q=solar-terrestrial%20relations" title=" solar-terrestrial relations"> solar-terrestrial relations</a> </p> <a href="https://publications.waset.org/abstracts/105873/space-weather-and-earthquakes-a-case-study-of-solar-flare-x93-class-on-september-6-2017" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/105873.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">143</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">18</span> The Biomechanical Analysis of Pelvic Osteotomies Applied for Developmental Dysplasia of the Hip Treatment in Pediatric Patients</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Suvorov%20Vasyl">Suvorov Vasyl</a>, <a href="https://publications.waset.org/abstracts/search?q=Filipchuk%20Viktor"> Filipchuk Viktor</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Developmental Dysplasia of the Hip (DDH) is a frequent pathology in pediatric orthopedist’s practice. Neglected or residual cases of DDH in walking patients are usually treated using pelvic osteotomies. Plastic changes take place in hinge points due to acetabulum reorientation during surgery. Classically described hinge points and a traditional division of pelvic osteotomies on reshaping and reorientation are currently debated. The purpose of this article was to evaluate biomechanical changes during the most commonly used pelvic osteotomies (Salter, Dega, Pemberton) for DDH treatment in pediatric patients. Methods: virtual pelvic models of 2- and 6-years old patients were created, material properties were assigned, pelvic osteotomies were simulated and biomechanical changes were evaluated using finite element analysis (FEA). Results: it was revealed that the patient's age has an impact on pelvic bones and cartilages density (in younger patients the pelvic elements are more pliable - p<0.05). Stress distribution after each of the abovementioned pelvic osteotomy was assessed in 2- and 6-years old patients’ pelvic models; hinge points were evaluated. The new term "restriction point" was introduced, which means a place where restriction of acetabular deformity correction occurs. Pelvic ligaments attachment points were mainly these restriction points. Conclusions: it was found out that there are no purely reshaping and reorientation pelvic osteotomies as previously believed; the pelvic ring acts as a unit in carrying out the applied load. Biomechanical overload of triradiate cartilage during Salter osteotomy in 2-years old patient and in 2- and 6-years old patients during Pemberton osteotomy was revealed; overload of the posterior cortical layer in the greater sciatic notch in 2-years old patient during Dega osteotomy was revealed. Level of Evidence – Level IV, prognostic. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=developmental%20dysplasia%20of%20the%20hip" title="developmental dysplasia of the hip">developmental dysplasia of the hip</a>, <a href="https://publications.waset.org/abstracts/search?q=pelvic%20osteotomy" title=" pelvic osteotomy"> pelvic osteotomy</a>, <a href="https://publications.waset.org/abstracts/search?q=finite%20element%20analysis" title=" finite element analysis"> finite element analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=hinge%20point" title=" hinge point"> hinge point</a>, <a href="https://publications.waset.org/abstracts/search?q=biomechanics" title=" biomechanics"> biomechanics</a> </p> <a href="https://publications.waset.org/abstracts/150398/the-biomechanical-analysis-of-pelvic-osteotomies-applied-for-developmental-dysplasia-of-the-hip-treatment-in-pediatric-patients" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/150398.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">100</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">17</span> Methodologies for Stability Assessment of Existing and Newly Designed Reinforced Concrete Bridges</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Marija%20Vitanov%D0%B0">Marija Vitanovа</a>, <a href="https://publications.waset.org/abstracts/search?q=Igor%20Gjorgjiev"> Igor Gjorgjiev</a>, <a href="https://publications.waset.org/abstracts/search?q=Viktor%20Hristovski"> Viktor Hristovski</a>, <a href="https://publications.waset.org/abstracts/search?q=Vlado%20Micov"> Vlado Micov</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Evaluation of stability is very important in the process of definition of optimal structural measures for maintenance of bridge structures and their strengthening. To define optimal measures for their repair and strengthening, it is necessary to evaluate their static and seismic stability. Presented in this paper are methodologies for evaluation of the seismic stability of existing reinforced concrete bridges designed without consideration of seismic effects and checking of structural justification of newly designed bridge structures. All bridges are located in the territory of the Republic of North Macedonia. A total of 26 existing bridges of different structural systems have been analyzed. Visual inspection has been carried out for all bridges, along with the definition of three main damage categories according to which structures have been categorized in respect to the need for their repair and strengthening. Investigations involving testing the quality of the built-in materials have been carried out, and dynamic tests pointing to the dynamic characteristics of the structures have been conducted by use of non-destructive methods of ambient vibration measurements. The conclusions drawn from the performed measurements and tests have been used for the development of accurate mathematical models that have been analyzed for static and dynamic loads. Based on the geometrical characteristics of the cross-sections and the physical characteristics of the built-in materials, interaction diagrams have been constructed. These diagrams along with the obtained section quantities under seismic effects, have been used to obtain the bearing capacity of the cross-sections. The results obtained from the conducted analyses point to the need for the repair of certain structural parts of the bridge structures. They indicate that the stability of the superstructure elements is not critical during a seismic effect, unlike the elements of the sub-structure, whose strengthening is necessary. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=existing%20bridges" title="existing bridges">existing bridges</a>, <a href="https://publications.waset.org/abstracts/search?q=newly%20designed%20bridges" title=" newly designed bridges"> newly designed bridges</a>, <a href="https://publications.waset.org/abstracts/search?q=reinforced%20concrete%20bridges" title=" reinforced concrete bridges"> reinforced concrete bridges</a>, <a href="https://publications.waset.org/abstracts/search?q=stability%20assessment" title=" stability assessment"> stability assessment</a> </p> <a href="https://publications.waset.org/abstracts/153971/methodologies-for-stability-assessment-of-existing-and-newly-designed-reinforced-concrete-bridges" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/153971.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">101</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">16</span> Experimental and Numerical Analysis of Wood Pellet Breakage during Pneumatic Transport</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Julian%20Jaegers">Julian Jaegers</a>, <a href="https://publications.waset.org/abstracts/search?q=Siegmar%20Wirtz"> Siegmar Wirtz</a>, <a href="https://publications.waset.org/abstracts/search?q=Viktor%20Scherer"> Viktor Scherer</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Wood pellets belong to the most established trade formats of wood-based fuels. Especially, because of the transportability and the storage properties, but also due to low moisture content, high energy density, and the homogeneous particle size and shape, wood pellets are well suited for power generation in power plants and for the use in automated domestic firing systems. Before they are thermally converted, wood pellets pass various transport and storage procedures. There they undergo different mechanical impacts, which leads to pellet breakage and abrasion and to an increase in fines. The fines lead to operational problems during storage, charging, and discharging of pellets, they can increase the risk of dust explosions and can lead to pollutant emissions during combustion. In the current work, the dependence of the formation of fines caused by breakage during pneumatic transport is analyzed experimentally and numerically. The focus lies on the influence of conveying velocity, pellet loading, pipe diameter, and the shape of pipe components like bends or couplings. A test rig has been built, which allows the experimental evaluation of the pneumatic transport varying the above-mentioned parameters. Two high-speed cameras are installed for the quantitative optical access to the particle-particle and particle-wall contacts. The particle size distribution of the bulk before and after a transport process is measured as well as the amount of fines produced. The experiments will be compared with results of corresponding DEM/CFD simulations to provide information on contact frequencies and forces. The contribution proposed will present experimental results and report on the status of the DEM/CFD simulations. The final goal of the project is to provide a better insight into pellet breakage during pneumatic transport and to develop guidelines ensuring a more gentle transport. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=DEM%2FCFD-simulation%20of%20pneumatic%20conveying" title="DEM/CFD-simulation of pneumatic conveying">DEM/CFD-simulation of pneumatic conveying</a>, <a href="https://publications.waset.org/abstracts/search?q=mechanical%20impact%20on%20wood%20pellets%20during%20transportation" title=" mechanical impact on wood pellets during transportation"> mechanical impact on wood pellets during transportation</a>, <a href="https://publications.waset.org/abstracts/search?q=pellet%20breakage" title=" pellet breakage"> pellet breakage</a>, <a href="https://publications.waset.org/abstracts/search?q=pneumatic%20transport%20of%20wood%20pellets" title=" pneumatic transport of wood pellets"> pneumatic transport of wood pellets</a> </p> <a href="https://publications.waset.org/abstracts/88559/experimental-and-numerical-analysis-of-wood-pellet-breakage-during-pneumatic-transport" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/88559.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">15</span> Performance Assessment of Carrier Aggregation-Based Indoor Mobile Networks</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Viktor%20R.%20Stoynov">Viktor R. Stoynov</a>, <a href="https://publications.waset.org/abstracts/search?q=Zlatka%20V.%20Valkova-Jarvis"> Zlatka V. Valkova-Jarvis</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The intelligent management and optimisation of radio resource technologies will lead to a considerable improvement in the overall performance in Next Generation Networks (NGNs). Carrier Aggregation (CA) technology, also known as Spectrum Aggregation, enables more efficient use of the available spectrum by combining multiple Component Carriers (CCs) in a virtual wideband channel. LTE-A (Long Term Evolution–Advanced) CA technology can combine multiple adjacent or separate CCs in the same band or in different bands. In this way, increased data rates and dynamic load balancing can be achieved, resulting in a more reliable and efficient operation of mobile networks and the enabling of high bandwidth mobile services. In this paper, several distinct CA deployment strategies for the utilisation of spectrum bands are compared in indoor-outdoor scenarios, simulated via the recently-developed Realistic Indoor Environment Generator (RIEG). We analyse the performance of the User Equipment (UE) by integrating the average throughput, the level of fairness of radio resource allocation, and other parameters, into one summative assessment termed a Comparative Factor (CF). In addition, comparison of non-CA and CA indoor mobile networks is carried out under different load conditions: varying numbers and positions of UEs. The experimental results demonstrate that the CA technology can improve network performance, especially in the case of indoor scenarios. Additionally, we show that an increase of carrier frequency does not necessarily lead to improved CF values, due to high wall-penetration losses. The performance of users under bad-channel conditions, often located in the periphery of the cells, can be improved by intelligent CA location. Furthermore, a combination of such a deployment and effective radio resource allocation management with respect to user-fairness plays a crucial role in improving the performance of LTE-A networks. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=comparative%20factor" title="comparative factor">comparative factor</a>, <a href="https://publications.waset.org/abstracts/search?q=carrier%20aggregation" title=" carrier aggregation"> carrier aggregation</a>, <a href="https://publications.waset.org/abstracts/search?q=indoor%20mobile%20network" title=" indoor mobile network"> indoor mobile network</a>, <a href="https://publications.waset.org/abstracts/search?q=resource%20allocation" title=" resource allocation"> resource allocation</a> </p> <a href="https://publications.waset.org/abstracts/81714/performance-assessment-of-carrier-aggregation-based-indoor-mobile-networks" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/81714.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">178</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">14</span> Dynamic Mechanical Analysis of Supercooled Water in Nanoporous Confinement and Biological Systems</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Viktor%20Soprunyuk">Viktor Soprunyuk</a>, <a href="https://publications.waset.org/abstracts/search?q=Wilfried%20Schranz"> Wilfried Schranz</a>, <a href="https://publications.waset.org/abstracts/search?q=Patrick%20Huber"> Patrick Huber</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In the present work, we show that Dynamic Mechanical Analysis (DMA) with a measurement frequency range f= 0.2 - 100 Hz is a rather powerful technique for the study of phase transitions (freezing and melting) and glass transitions of water in geometrical confinement. Inserting water into nanoporous host matrices, like e.g. Gelsil (size of pores 2.6 nm and 5 nm) or Vycor (size of pores 10 nm) allows one to study size effects occurring at the nanoscale conveniently in macroscopic bulk samples. One obtains valuable insight concerning confinement induced changes of the dynamics by measuring the temperature and frequency dependencies of the complex Young's modulus Y* for various pore sizes. Solid-liquid transitions or glass-liquid transitions show up in a softening or the real part Y' of the complex Young's modulus, yet with completely different frequency dependencies. Analysing the frequency dependent imaginary part of the Young´s modulus in the glass transition regions for different pore sizes we find a clear-cut 1/d-dependence of the calculated glass transition temperatures which extrapolates to Tg(1/d=0)=136 K, in agreement with the traditional value of water. The results indicate that the main role of the pore diameter is the relative amount of water molecules that are near an interface within a length scale of the order of the dynamic correlation length x. Thus we argue that the observed strong pore size dependence of Tg is an interfacial effect, rather than a finite size effect. We obtained similar signatures of Y* near glass transitions in different biological objects (fruits, vegetables, and bread). The values of the activation energies for these biological materials in the region of glass transition are quite similar to the values of the activation energies of supercooled water in the nanoporous confinement in this region. The present work was supported by the Austrian Science Fund (FWF, project Nr. P 28672 – N36). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=biological%20systems" title="biological systems">biological systems</a>, <a href="https://publications.waset.org/abstracts/search?q=liquids" title=" liquids"> liquids</a>, <a href="https://publications.waset.org/abstracts/search?q=glasses" title=" glasses"> glasses</a>, <a href="https://publications.waset.org/abstracts/search?q=amorphous%20systems" title=" amorphous systems"> amorphous systems</a>, <a href="https://publications.waset.org/abstracts/search?q=nanoporous%20materials" title=" nanoporous materials"> nanoporous materials</a>, <a href="https://publications.waset.org/abstracts/search?q=phase%20transition" title=" phase transition"> phase transition</a> </p> <a href="https://publications.waset.org/abstracts/56486/dynamic-mechanical-analysis-of-supercooled-water-in-nanoporous-confinement-and-biological-systems" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/56486.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">238</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">13</span> Interbrain Synchronization and Multilayer Hyper brain Networks when Playing Guitar in Quartet</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Viktor%20M%C3%BCller">Viktor Müller</a>, <a href="https://publications.waset.org/abstracts/search?q=Ulman%20Lindenberger"> Ulman Lindenberger</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Neurophysiological evidence suggests that the physiological states of the system are characterized by specific network structures and network topology dynamics, demonstrating a robust interplay between network topology and function. It is also evident that interpersonal action coordination or social interaction (e.g., playing music in duets or groups) requires strong intra- and interbrain synchronization resulting in a specific hyper brain network activity across two or more brains to support such coordination or interaction. Such complex hyper brain networks can be described as multiplex or multilayer networks that have a specific multidimensional or multilayer network organization characteristic for superordinate systems and their constituents. The aim of the study was to describe multilayer hyper brain networks and synchronization patterns of guitarists playing guitar in a quartet by using electroencephalography (EEG) hyper scanning (simultaneous EEG recording from multiple brains) and following time-frequency decomposition and multilayer network construction, where within-frequency coupling (WFC) represents communication within different layers, and cross-frequency coupling (CFC) depicts communication between these layers. Results indicate that communication or coupling dynamics, both within and between the layers across the brains of the guitarists, play an essential role in action coordination and are particularly enhanced during periods of high demands on musical coordination. Moreover, multilayer hyper brain network topology and dynamical structure of guitar sounds showed specific guitar-guitar, brain-brain, and guitar-brain causal associations, indicating multilevel dynamics with upward and downward causation, contributing to the superordinate system dynamics and hyper brain functioning. It is concluded that the neuronal dynamics during interpersonal interaction are brain-wide and frequency-specific with the fine-tuned balance between WFC and CFC and can best be described in terms of multilayer multi-brain networks with specific network topology and connectivity strengths. Further sophisticated research is needed to deepen our understanding of these highly interesting and complex phenomena. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=EEG%20hyper%20scanning" title="EEG hyper scanning">EEG hyper scanning</a>, <a href="https://publications.waset.org/abstracts/search?q=intra-%20and%20interbrain%20coupling" title=" intra- and interbrain coupling"> intra- and interbrain coupling</a>, <a href="https://publications.waset.org/abstracts/search?q=multilayer%20hyper%20brain%20networks" title=" multilayer hyper brain networks"> multilayer hyper brain networks</a>, <a href="https://publications.waset.org/abstracts/search?q=social%20interaction" title=" social interaction"> social interaction</a>, <a href="https://publications.waset.org/abstracts/search?q=within-%20and%20cross-frequency%20coupling" title=" within- and cross-frequency coupling"> within- and cross-frequency coupling</a> </p> <a href="https://publications.waset.org/abstracts/162306/interbrain-synchronization-and-multilayer-hyper-brain-networks-when-playing-guitar-in-quartet" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/162306.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">72</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">12</span> Influence оf Viscous Dampers on Seismic Response оf Isolated Bridges Including Soil Structure Interaction</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Marija%20Vitanova">Marija Vitanova</a>, <a href="https://publications.waset.org/abstracts/search?q=Aleksandra%20Bogdanovic"> Aleksandra Bogdanovic</a>, <a href="https://publications.waset.org/abstracts/search?q=Kemal%20Edip"> Kemal Edip</a>, <a href="https://publications.waset.org/abstracts/search?q=Viktor%20Hristovski"> Viktor Hristovski</a>, <a href="https://publications.waset.org/abstracts/search?q=Vlado%20Micov"> Vlado Micov</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Bridges represent critical structures in lifeline systems. They provide reliable modes of transportation, so their failure can seriously obstruct relief and rehabilitation work. Earthquake ground motions can cause significant damages in bridges, so during the strong earthquakes, they can easily collapse. The base isolation technique has been quite effective in seismic response mitigation of the bridges in reducing the piers base shear. The effect of soil structure interaction on the dynamic responses of seismically isolated three span girder bridge with viscous dampers is investigated. Viscous dampers are installed in the mid span of the bridge to control bearing displacement. The soil surrounding the foundation of piers has been analyzed by applying different soil densities in order to consider the soil stiffness. The soil medium has been assumed as a four layered infill as dense and loose medium. The boundaries in the soil medium are considered as infinite elements in order to absorb the radiating waves. The formulation of infinite elements is the same as for the finite elements in addition to the mapping of the domain. Based on the iso-parametric concept, the infinite element in global coordinate is mapped onto an element in local coordinate system. In the formulation of the infinite element, only the positive direction extends to infinity thus allowing the waves to propagate outside of the soil medium. Dynamic analyses for two levels of earthquake intensity are performed in time domain using direct integration method. In order to specify the effects of the SSI, the responses of the isolated and controlled isolated bridges are compared. It is observed that the soil surrounding the piers has significant effects on the bearing displacement of the isolated RC bridges. In addition, it is observed that the seismic responses of isolated RC bridge reduced significantly with the installation of the viscous dampers. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=viscous%20dampers" title="viscous dampers">viscous dampers</a>, <a href="https://publications.waset.org/abstracts/search?q=reinforced%20concrete%20girder%20bridges" title=" reinforced concrete girder bridges"> reinforced concrete girder bridges</a>, <a href="https://publications.waset.org/abstracts/search?q=seismic%20response" title=" seismic response"> seismic response</a>, <a href="https://publications.waset.org/abstracts/search?q=SSI" title=" SSI"> SSI</a> </p> <a href="https://publications.waset.org/abstracts/115095/influence-of-viscous-dampers-on-seismic-response-of-isolated-bridges-including-soil-structure-interaction" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/115095.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">124</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">11</span> The Desire for Significance & Memorability in Popular Culture: A Cognitive Psychological Study of Contemporary Literature, Art, and Media</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Israel%20B.%20Bitton">Israel B. Bitton</a> </p> <p class="card-text"><strong>Abstract:</strong></p> “Memory” is associated with various phenomena, from physical to mental, personal to collective and historical to cultural. As part of a broader exploration of memory studies in philosophy and science (slated for academic publication October 2021), this specific study employs analytical methods of cognitive psychology and philosophy of memory to theorize that A) the primary human will (drive) is to significance, in that every human action and expression can be rooted in a most primal desire to be cosmically significant (however that is individually perceived); and B) that the will to significance manifests as the will to memorability, an innate desire to be remembered by others after death. In support of these broad claims, a review of various popular culture “touchpoints”—historic and contemporary records spanning literature, film and television, traditional news media, and social media—is presented to demonstrate how this very theory is repeatedly and commonly expressed (and has been for a long time) by many popular public figures as well as “everyday people.” Though developed before COVID, the crisis only increased the theory’s relevance: so many people were forced to die alone, leaving them and their loved ones to face even greater existential angst than what ordinarily accompanies death since the usual expectations for one’s “final moments” were shattered. To underscore this issue of, and response to, what can be considered a sociocultural “memory gap,” this study concludes with a summary of several projects launched by journalists at the height of the pandemic to document the memorable human stories behind COVID’s tragic warped speed death toll that, when analyzed through the lens of Viktor E. Frankl’s psychoanalytical perspective on “existential meaning,” shows how countless individuals were robbed of the last wills and testaments to their self-significance and memorability typically afforded to the dying and the aggrieved. The resulting insight ought to inform how government and public health officials determine what is truly “non-essential” to human health, physical and mental, at times of crisis. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cognitive%20psychology" title="cognitive psychology">cognitive psychology</a>, <a href="https://publications.waset.org/abstracts/search?q=covid" title=" covid"> covid</a>, <a href="https://publications.waset.org/abstracts/search?q=neuroscience" title=" neuroscience"> neuroscience</a>, <a href="https://publications.waset.org/abstracts/search?q=philosophy%20of%20memory" title=" philosophy of memory"> philosophy of memory</a> </p> <a href="https://publications.waset.org/abstracts/139374/the-desire-for-significance-memorability-in-popular-culture-a-cognitive-psychological-study-of-contemporary-literature-art-and-media" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/139374.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">184</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">10</span> Nanofiltration Membranes with Deposyted Polyelectrolytes: Caracterisation and Antifouling Potential</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Viktor%20Kochkodan">Viktor Kochkodan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The main problem arising upon water treatment and desalination using pressure driven membrane processes such as microfiltration, ultrafiltration, nanofiltration and reverse osmosis is membrane fouling that seriously hampers the application of the membrane technologies. One of the main approaches to mitigate membrane fouling is to minimize adhesion interactions between a foulant and a membrane and the surface coating of the membranes with polyelectrolytes seems to be a simple and flexible technique to improve the membrane fouling resistance. In this study composite polyamide membranes NF-90, NF-270, and BW-30 were modified using electrostatic deposition of polyelectrolyte multilayers made from various polycationic and polyanionic polymers of different molecular weights. Different anionic polyelectrolytes such as: poly(sodium 4-styrene sulfonate), poly(vinyl sulfonic acid, sodium salt), poly(4-styrene sulfonic acid-co-maleic acid) sodium salt, poly(acrylic acid) sodium salt (PA) and cationic polyelectrolytes such as poly(diallyldimethylammonium chloride), poly(ethylenimine) and poly(hexamethylene biguanide were used for membrane modification. An effect of deposition time and a number of polyelectrolyte layers on the membrane modification has been evaluated. It was found that degree of membrane modification depends on chemical nature and molecular weight of polyelectrolytes used. The surface morphology of the prepared composite membranes was studied using atomic force microscopy. It was shown that the surface membrane roughness decreases significantly as a number of the polyelectrolyte layers on the membrane surface increases. This smoothening of the membrane surface might contribute to the reduction of membrane fouling as lower roughness most often associated with a decrease in surface fouling. Zeta potentials and water contact angles on the membrane surface before and after modification have also been evaluated to provide addition information regarding membrane fouling issues. It was shown that the surface charge of the membranes modified with polyelectrolytes could be switched between positive and negative after coating with a cationic or an anionic polyelectrolyte. On the other hand, the water contact angle was strongly affected when the outermost polyelectrolyte layer was changed. Finally, a distinct difference in the performance of the noncoated membranes and the polyelectrolyte modified membranes was found during treatment of seawater in the non-continuous regime. A possible mechanism of the higher fouling resistance of the modified membranes has been discussed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=contact%20angle" title="contact angle">contact angle</a>, <a href="https://publications.waset.org/abstracts/search?q=membrane%20fouling" title=" membrane fouling"> membrane fouling</a>, <a href="https://publications.waset.org/abstracts/search?q=polyelectrolytes" title=" polyelectrolytes"> polyelectrolytes</a>, <a href="https://publications.waset.org/abstracts/search?q=surface%20modification" title=" surface modification"> surface modification</a> </p> <a href="https://publications.waset.org/abstracts/71307/nanofiltration-membranes-with-deposyted-polyelectrolytes-caracterisation-and-antifouling-potential" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/71307.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">251</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">9</span> Teicoplanin Derivatives with Antiviral Activity: Synthesis and Biological Evaluation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Zsolt%20Szucs">Zsolt Szucs</a>, <a href="https://publications.waset.org/abstracts/search?q=Viktor%20Kelemen"> Viktor Kelemen</a>, <a href="https://publications.waset.org/abstracts/search?q=Son%20Le%20Thai"> Son Le Thai</a>, <a href="https://publications.waset.org/abstracts/search?q=Magdolna%20Csavas"> Magdolna Csavas</a>, <a href="https://publications.waset.org/abstracts/search?q=Erzsebet%20Roth"> Erzsebet Roth</a>, <a href="https://publications.waset.org/abstracts/search?q=Gyula%20Batta"> Gyula Batta</a>, <a href="https://publications.waset.org/abstracts/search?q=Annelies%20Stevaert"> Annelies Stevaert</a>, <a href="https://publications.waset.org/abstracts/search?q=Evelien%20Vanderlinden"> Evelien Vanderlinden</a>, <a href="https://publications.waset.org/abstracts/search?q=Aniko%20Borbas"> Aniko Borbas</a>, <a href="https://publications.waset.org/abstracts/search?q=Lieve%20Naesens"> Lieve Naesens</a>, <a href="https://publications.waset.org/abstracts/search?q=Pal%20Herczegh"> Pal Herczegh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The approval of modern glycopeptide antibiotics such as dalbavancin and oritavancin which have excellent activity against Gram-positive bacteria, encouraged our research group to prepare semisynthetic compounds from several members of glycopeptides by various chemical methods. Derivatives from the aglycone of ristocetin, eremomycin, vancomycin and a pseudoaglycon of teicoplanin have been synthesized in a systematic manner. Interestingly, some of the aglycoristocetin derivatives displayed noteworthy anti-influenza activity. More recently our group has been focusing on the modifications of one of the pseudoaglycons of teicoplanin. The reaction of N-ethoxycarbonyl maleimide derivatives with the primary amino function, the copper-catalysed azide-alkyne click reaction and the sulfonylation of the N-terminus were utilized to obtain systematic series of compounds. All substituents provide a more lipophilic character to the new molecules compared to the parent antibiotics, which is known to be favourable for activity against resistant bacteria. Lipoglycopeptides are also known to have antiviral properties, which has been predominantly studied on HIV by others. The structure-activity relationship study of our compounds revealed the influence of a few structural elements on biological activity. In many cases, minimal changes in lipophilicity and structure produced great differences in efficacy and cytotoxicity. In vitro experiments showed that these compounds are not only active against glycopeptide resistant Gram-positive bacteria but in several cases they prevent the infection of cell cultures by different strains of influenza viruses. This is probably related to the inhibition of the viral entry into the host cell nucleus, of which the exact mechanism is unknown. In some instances, reasonably low concentrations were sufficient to observe this effect. Several derivatives were highly cytotoxic at the same time, but some of them displayed a good selectivity index. The antiviral properties of the compounds are not restricted to influenza viruses e.g., some of them showed good activity against Human Coronavirus 229E. This work could potentially lead to the development of antiviral drugs which possess the crucial structural motifs that are needed for antiviral activity, while missing those which contribute to the antibacterial effect. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=antiviral" title="antiviral">antiviral</a>, <a href="https://publications.waset.org/abstracts/search?q=glycopeptide" title=" glycopeptide"> glycopeptide</a>, <a href="https://publications.waset.org/abstracts/search?q=semisynthetic" title=" semisynthetic"> semisynthetic</a>, <a href="https://publications.waset.org/abstracts/search?q=teicoplanin" title=" teicoplanin"> teicoplanin</a> </p> <a href="https://publications.waset.org/abstracts/97121/teicoplanin-derivatives-with-antiviral-activity-synthesis-and-biological-evaluation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/97121.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">157</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">8</span> Safety and Feasibility of Distal Radial Balloon Aortic Valvuloplasty - The DR-BAV Study</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alexandru%20Achim">Alexandru Achim</a>, <a href="https://publications.waset.org/abstracts/search?q=Tam%C3%A1s%20Sz%C5%B1csborus"> Tamás Szűcsborus</a>, <a href="https://publications.waset.org/abstracts/search?q=Viktor%20Sasi"> Viktor Sasi</a>, <a href="https://publications.waset.org/abstracts/search?q=Ferenc%20Nagy"> Ferenc Nagy</a>, <a href="https://publications.waset.org/abstracts/search?q=Zolt%C3%A1n%20Jambrik"> Zoltán Jambrik</a>, <a href="https://publications.waset.org/abstracts/search?q=Attila%20Nemes"> Attila Nemes</a>, <a href="https://publications.waset.org/abstracts/search?q=Albert%20Varga"> Albert Varga</a>, <a href="https://publications.waset.org/abstracts/search?q=C%C4%83lin%20Homorodean"> Călin Homorodean</a>, <a href="https://publications.waset.org/abstracts/search?q=Olivier%20F.%20Bertrand"> Olivier F. Bertrand</a>, <a href="https://publications.waset.org/abstracts/search?q=Zolt%C3%A1n%20Ruzsa"> Zoltán Ruzsa</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Aim: Our study aimed to establish the safety and the technical success of distal radial access for balloon aortic valvuloplasty (DR-BAV). The secondary objective was to determine the effectiveness and appropriate role of DR-BAV within half year follow-up. Methods: Clinical and angiographic data from 32 consecutive patients with symptomatic aortic stenosis were evaluated in a prospective pilot single-center study. Between 2020 and 2021, the patients were treated utilizing dual distal radial access with 6-10F compatible balloons. The efficacy endpoint was divided into technical success (successful valvuloplasty balloon inflation at the aortic valve and absence of intra- or periprocedural major complications), hemodynamic success (a reduction of the mean invasive gradient >30%), and clinical success (an improvement of at least one clinical category in the NYHA classification). The safety endpoints were vascular complications (major and minor Valve Academic Research Consortium (VARC)-2 bleeding, diminished or lost arterial pulse or the presence of any pseudo-aneurysm or arteriovenous fistula during the clinical follow-up) and major adverse events, MAEs (the composite of death, stroke, myocardial infarction, and urgent major aortic valve replacement or implantation during the hospital stay and or at one-month follow-up). Results: 32 patients (40 % male, mean age 80 ± 8,5) with severe aortic valve stenosis were included in the study and 4 patients were excluded. Technical success was achieved in all patients (100%). Hemodynamic success was achieved in 30 patients (93,75%). Invasive max and mean gradients were reduced from 73±22 mm Hg and 49±22 mm Hg to 49±19 mm Hg and 20±13 mm Hg, respectively (p = <.001). Clinical success was achieved in 29 patients (90,6%). In total, no major adverse cardiac or cerebrovascular event nor vascular complications (according to VARC 2 criteria) occurred during the intervention. All-cause death at 6 months was 12%. Conclusion: According to our study, dual distal radial artery access is a safe and effective option for balloon aortic valvuloplasty in patients with severe aortic valve stenosis and can be performed in all patients with sufficient lumen diameter. Future randomized studies are warranted to investigate whether this technique is superior to other approaches. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=mean%20invasive%20gradient" title="mean invasive gradient">mean invasive gradient</a>, <a href="https://publications.waset.org/abstracts/search?q=distal%20radial%20access%20for%20balloon%20aortic%20valvuloplasty%20%28DR-BAV%29" title=" distal radial access for balloon aortic valvuloplasty (DR-BAV)"> distal radial access for balloon aortic valvuloplasty (DR-BAV)</a>, <a href="https://publications.waset.org/abstracts/search?q=aortic%20valve%20stenosis" title=" aortic valve stenosis"> aortic valve stenosis</a>, <a href="https://publications.waset.org/abstracts/search?q=pseudo-aneurysm" title=" pseudo-aneurysm"> pseudo-aneurysm</a>, <a href="https://publications.waset.org/abstracts/search?q=arteriovenous%20fistula" title=" arteriovenous fistula"> arteriovenous fistula</a>, <a href="https://publications.waset.org/abstracts/search?q=valve%20academic%20research%20consortium%20%28VARC%29-2" title=" valve academic research consortium (VARC)-2"> valve academic research consortium (VARC)-2</a> </p> <a href="https://publications.waset.org/abstracts/166341/safety-and-feasibility-of-distal-radial-balloon-aortic-valvuloplasty-the-dr-bav-study" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/166341.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">94</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">7</span> Recognition by the Voice and Speech Features of the Emotional State of Children by Adults and Automatically</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Elena%20E.%20Lyakso">Elena E. Lyakso</a>, <a href="https://publications.waset.org/abstracts/search?q=Olga%20V.%20Frolova"> Olga V. Frolova</a>, <a href="https://publications.waset.org/abstracts/search?q=Yuri%20N.%20Matveev"> Yuri N. Matveev</a>, <a href="https://publications.waset.org/abstracts/search?q=Aleksey%20S.%20Grigorev"> Aleksey S. Grigorev</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexander%20S.%20Nikolaev"> Alexander S. Nikolaev</a>, <a href="https://publications.waset.org/abstracts/search?q=Viktor%20A.%20Gorodnyi"> Viktor A. Gorodnyi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The study of the children’s emotional sphere depending on age and psychoneurological state is of great importance for the design of educational programs for children and their social adaptation. Atypical development may be accompanied by violations or specificities of the emotional sphere. To study characteristics of the emotional state reflection in the voice and speech features of children, the perceptual study with the participation of adults and the automatic recognition of speech were conducted. Speech of children with typical development (TD), with Down syndrome (DS), and with autism spectrum disorders (ASD) aged 6-12 years was recorded. To obtain emotional speech in children, model situations were created, including a dialogue between the child and the experimenter containing questions that can cause various emotional states in the child and playing with a standard set of toys. The questions and toys were selected, taking into account the child’s age, developmental characteristics, and speech skills. For the perceptual experiment by adults, test sequences containing speech material of 30 children: TD, DS, and ASD were created. The listeners were 100 adults (age 19.3 ± 2.3 years). The listeners were tasked with determining the children’s emotional state as “comfort – neutral – discomfort” while listening to the test material. Spectrographic analysis of speech signals was conducted. For automatic recognition of the emotional state, 6594 speech files containing speech material of children were prepared. Automatic recognition of three states, “comfort – neutral – discomfort,” was performed using automatically extracted from the set of acoustic features - the Geneva Minimalistic Acoustic Parameter Set (GeMAPS) and the extended Geneva Minimalistic Acoustic Parameter Set (eGeMAPS). The results showed that the emotional state is worse determined by the speech of TD children (comfort – 58% of correct answers, discomfort – 56%). Listeners better recognized discomfort in children with ASD and DS (78% of answers) than comfort (70% and 67%, respectively, for children with DS and ASD). The neutral state is better recognized by the speech of children with ASD (67%) than by the speech of children with DS (52%) and TD children (54%). According to the automatic recognition data using the acoustic feature set GeMAPSv01b, the accuracy of automatic recognition of emotional states for children with ASD is 0.687; children with DS – 0.725; TD children – 0.641. When using the acoustic feature set eGeMAPSv01b, the accuracy of automatic recognition of emotional states for children with ASD is 0.671; children with DS – 0.717; TD children – 0.631. The use of different models showed similar results, with better recognition of emotional states by the speech of children with DS than by the speech of children with ASD. The state of comfort is automatically determined better by the speech of TD children (precision – 0.546) and children with ASD (0.523), discomfort – children with DS (0.504). The data on the specificities of recognition by adults of the children’s emotional state by their speech may be used in recruitment for working with children with atypical development. Automatic recognition data can be used to create alternative communication systems and automatic human-computer interfaces for social-emotional learning. Acknowledgment: This work was financially supported by the Russian Science Foundation (project 18-18-00063). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=autism%20spectrum%20disorders" title="autism spectrum disorders">autism spectrum disorders</a>, <a href="https://publications.waset.org/abstracts/search?q=automatic%20recognition%20of%20speech" title=" automatic recognition of speech"> automatic recognition of speech</a>, <a href="https://publications.waset.org/abstracts/search?q=child%E2%80%99s%20emotional%20speech" title=" child’s emotional speech"> child’s emotional speech</a>, <a href="https://publications.waset.org/abstracts/search?q=Down%20syndrome" title=" Down syndrome"> Down syndrome</a>, <a href="https://publications.waset.org/abstracts/search?q=perceptual%20experiment" title=" perceptual experiment"> perceptual experiment</a> </p> <a href="https://publications.waset.org/abstracts/134192/recognition-by-the-voice-and-speech-features-of-the-emotional-state-of-children-by-adults-and-automatically" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/134192.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">6</span> Tuberculosis Outpatient Treatment in the Context of Reformation of the Health Care System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Danylo%20Brindak">Danylo Brindak</a>, <a href="https://publications.waset.org/abstracts/search?q=Viktor%20Liashko"> Viktor Liashko</a>, <a href="https://publications.waset.org/abstracts/search?q=Olexander%20Chepurniy"> Olexander Chepurniy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Despite considerable experience in implementation of the best international approaches and services within response to epidemy of multi-drug resistant tuberculosis, the results of situation analysis indicate the presence of faults in this area. In 2014, Ukraine (for the first time) was included in the world’s five countries with the highest level of drug-resistant tuberculosis. The effectiveness of its treatment constitutes only 35% in the country. In this context, the increase in allocation of funds to control the epidemic of multidrug-resistant tuberculosis does not produce perceptible positive results. During 2001-2016, only the Global Fund to fight AIDS, Tuberculosis, and Malaria allocated to Ukraine more than USD 521,3 million for programs of tuberculosis and HIV/AIDS control. However, current conditions in post-Semashko system create little motivation for rational use of resources or cost control at inpatient TB facilities. There is no motivation to reduce overdue hospitalization and to target resources to priority sectors of modern tuberculosis control, including a model of care focused on the patient. In the presence of a line-item budget at medical institutions, based on the input factors as the ratios of beds and staff, there is a passive disposal of budgetary funds by health care institutions and their employees who have no motivation to improve quality and efficiency of service provision. Outpatient treatment of tuberculosis is being implemented in Ukraine since 2011 and has many risks, namely creation of parallel systems, low consistency through dependence on funding for the project, reduced the role of the family doctor, the fragmentation of financing, etc. In terms of reforming approaches to health system financing, which began in Ukraine in late 2016, NGO Infection Control in Ukraine conducted piloting of a new, motivating method of remuneration of employees in primary health care. The innovative aspect of this funding mechanism is cost according to results of treatment. The existing method of payment on the basis of the standard per inhabitant (per capita ratio) was added with motivating costs according to results of work. The effectiveness of such treatment of TB patients at the outpatient stage is 90%, while in whole on the basis of a current system the effectiveness of treatment of newly diagnosed pulmonary TB with positive swab is around 60% in the country. Even though Ukraine has 5.24 TB beds per 10 000 citizens. Implemented pilot model of ambulatory treatment will be used for the creation of costs system according to results of activities, the integration of TB and primary health and social services and their focus on achieving results, the reduction of inpatient treatment of tuberculosis. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=health%20care%20reform" title="health care reform">health care reform</a>, <a href="https://publications.waset.org/abstracts/search?q=multi-drug%20resistant%20tuberculosis" title=" multi-drug resistant tuberculosis"> multi-drug resistant tuberculosis</a>, <a href="https://publications.waset.org/abstracts/search?q=outpatient%20treatment%20efficiency" title=" outpatient treatment efficiency"> outpatient treatment efficiency</a>, <a href="https://publications.waset.org/abstracts/search?q=tuberculosis" title=" tuberculosis"> tuberculosis</a> </p> <a href="https://publications.waset.org/abstracts/82634/tuberculosis-outpatient-treatment-in-the-context-of-reformation-of-the-health-care-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/82634.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">147</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">5</span> The Use of Platelet-rich Plasma in the Treatment of Diabetic Foot Ulcers: A Scoping Review</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kiran%20Sharma">Kiran Sharma</a>, <a href="https://publications.waset.org/abstracts/search?q=Viktor%20Kunder"> Viktor Kunder</a>, <a href="https://publications.waset.org/abstracts/search?q=Zerha%20Rizvi"> Zerha Rizvi</a>, <a href="https://publications.waset.org/abstracts/search?q=Ricardo%20Soubelet"> Ricardo Soubelet</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Platelet rich plasma (PRP) has been recognized as a method of treatment in medicine since the 1980s. It primarily functions by releasing cytokines and growth factors that promote wound healing; these growth promoting factors released by PRP enact new processes such as angiogenesis, collagen deposition, and tissue formation that can change wound healing outcomes. Many studies recognize that PRP aids in chronic wound healing, which is advantageous for patients who suffer from chronic diabetic foot ulcers (DFUs). This scoping review aims to examine literature to identify the efficacy of PRP use in the healing of DFUs. Following PRISMA guidelines, we searched randomized-controlled trials involving PRP use in diabetic patients with foot ulcers using PubMed, Medline, CINAHL Complete, and Cochrane Database of Systematic Reviews. We restricted the search to articles published during 2005-2022, full texts in the English language, articles involving patients aged 19 years or older, articles that used PRP on specifically DFUs, articles that included a control group, articles on human subjects. The initial search yielded 119 articles after removing duplicates. Final analysis for relevance yielded 8 articles. In all cases except one, the PRP group showed either faster healing, more complete healing, or a larger percentage of healed participants. There were no situations in the included studies where the control group had a higher rate of healing or decreased wound size as compared to a group with isolated PRP-only use. Only one study did not show conclusive evidence that PRP caused accelerated healing in DFUs, and this study did not have an isolated PRP variable group. Application styles of PRP for treatment were shown to influence the level of healing in patients, with injected PRP appearing to achieve the best results as compared to topical PRP application. However, this was not conclusive due to the involvement of several other variables. Two studies additionally found PRP to be useful in healing refractory DFUs, and one study found that PRP use in patients with additional comorbidities was still more effective in healing DFUs than the standard control groups. The findings of this review suggest that PRP is a useful tool in reducing healing times and improving rates of complete wound healing in DFUs. There is room for further research in the application styles of PRP before conclusive statements can be made on the efficacy of injected versus topical PRP healing based on the findings in this study. The results of this review provide a baseline for further research in PRP use in diabetic patients and can be used by both physicians and public health experts to guide future treatment options for DFUs. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=diabetic%20foot%20ulcer" title="diabetic foot ulcer">diabetic foot ulcer</a>, <a href="https://publications.waset.org/abstracts/search?q=DFU" title=" DFU"> DFU</a>, <a href="https://publications.waset.org/abstracts/search?q=platelet%20rich%20plasma" title=" platelet rich plasma"> platelet rich plasma</a>, <a href="https://publications.waset.org/abstracts/search?q=PRP" title=" PRP"> PRP</a> </p> <a href="https://publications.waset.org/abstracts/162040/the-use-of-platelet-rich-plasma-in-the-treatment-of-diabetic-foot-ulcers-a-scoping-review" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/162040.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">75</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=Viktor%20Sykora&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Viktor%20Sykora&page=2" rel="next">&rsaquo;</a></li> </ul> </div> </main> <footer> <div id="infolinks" class="pt-3 pb-2"> <div class="container"> <div style="background-color:#f5f5f5;" class="p-3"> <div class="row"> <div class="col-md-2"> <ul class="list-unstyled"> About <li><a href="https://waset.org/page/support">About Us</a></li> <li><a href="https://waset.org/page/support#legal-information">Legal</a></li> <li><a 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