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Mansour Samaei</title> <meta name="description" content="Search results for: Nader Mansour Samaei"> <meta name="keywords" content="Nader Mansour Samaei"> <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 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action="https://publications.waset.org/abstracts/search"> <div id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="Nader Mansour Samaei"> <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> 180</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Nader Mansour Samaei</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">180</span> The Effect of Naringenin on the Apoptosis in T47D Cell Line of Breast Cancer</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=AliAkbar%20Hafezi">AliAkbar Hafezi</a>, <a href="https://publications.waset.org/abstracts/search?q=Jahanbakhsh%20Asadi"> Jahanbakhsh Asadi</a>, <a href="https://publications.waset.org/abstracts/search?q=Majid%20Shahbazi"> Majid Shahbazi</a>, <a href="https://publications.waset.org/abstracts/search?q=Alijan%20Tabarraei"> Alijan Tabarraei</a>, <a href="https://publications.waset.org/abstracts/search?q=Nader%20Mansour%20Samaei"> Nader Mansour Samaei</a>, <a href="https://publications.waset.org/abstracts/search?q=Hamed%20Sheibak"> Hamed Sheibak</a>, <a href="https://publications.waset.org/abstracts/search?q=Roghaye%20Gharaei"> Roghaye Gharaei</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: Breast cancer is the most common cancer in women. In most cancer cells, apoptosis is blocked. As for the importance of apoptosis in cancer cell death and the role of different genes in its induction or inhibition, the search for compounds that can begin the process of apoptosis in tumor cells is discussed as a new strategy in anticancer drug discovery. The aim of this study was to investigate the effect of Naringenin (NGEN) on the apoptosis in the T47D cell line of breast cancer. Materials and Methods: In this experimental study in vitro, the T47D cell line of breast cancer was selected as a sample. The cells at 24, 48, and 72 hours were treated with doses of 20, 200, and 1000 µm of Naringenin. Then, the transcription levels of the genes involved in apoptosis, including Bcl-2, Bax, Caspase 3, Caspase 8, Caspase 9, P53, PARP-1, and FAS, were assessed using Real Time-PCR. The collected data were analyzed using IBM SPSS Statistics 24.0. Results: The results showed that Naringenin at doses of 20, 200, and 1000 µm in all three times of 24, 48, and 72 hours increased the expression of Caspase 3, P53, PARP-1 and FAS and reduced the expression of Bcl-2 and increased the Bax/Bcl-2 ratio, nevertheless in none of the studied doses and times, had not a significant effect on the expression of Bax, Caspase 8 and Caspase 9. Conclusion: This study indicates that Naringenin can reduce the growth of some cancer cells and cause their deaths through increased apoptosis and decreased anti-apoptotic Bcl-2 gene expression and, resulting in the induction of apoptosis via both internal and external pathways. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=apoptosis" title="apoptosis">apoptosis</a>, <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=naringenin" title=" naringenin"> naringenin</a>, <a href="https://publications.waset.org/abstracts/search?q=T47D%20cell%20line" title=" T47D cell line"> T47D cell line</a> </p> <a href="https://publications.waset.org/abstracts/182879/the-effect-of-naringenin-on-the-apoptosis-in-t47d-cell-line-of-breast-cancer" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/182879.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">53</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">179</span> Cooperative Learning Mechanism in Intelligent Multi-Agent System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ayman%20M.%20Mansour">Ayman M. Mansour</a>, <a href="https://publications.waset.org/abstracts/search?q=Bilal%20Hawashin"> Bilal Hawashin</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammed%20A.%20Mansour"> Mohammed A. Mansour</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, we propose a cooperative learning mechanism in a multi-agent intelligent system. The basic idea is that intelligent agents are capable of collaborating with one another by sharing their knowledge. The agents will start collaboration by providing their knowledge rules to the other agents. This will allow the most important and insightful detection rules produced by the most experienced agent to bubble up for the benefit of the entire agent community. The updated rules will lead to improving the agents’ decision performance. To evaluate our approach, we designed a five–agent system and implemented it using JADE and FuzzyJess software packages. The agents will work with each other to make a decision about a suspicious medical case. This system provides quick response rate and the decision is faster than the manual methods. This will save patients life. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=intelligent" title="intelligent">intelligent</a>, <a href="https://publications.waset.org/abstracts/search?q=multi-agent%20system" title=" multi-agent system"> multi-agent system</a>, <a href="https://publications.waset.org/abstracts/search?q=cooperative" title=" cooperative"> cooperative</a>, <a href="https://publications.waset.org/abstracts/search?q=fuzzy" title=" fuzzy"> fuzzy</a>, <a href="https://publications.waset.org/abstracts/search?q=learning" title=" learning"> learning</a> </p> <a href="https://publications.waset.org/abstracts/47913/cooperative-learning-mechanism-in-intelligent-multi-agent-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/47913.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">685</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">178</span> Driving in a Short Arm Plaster Cast Steer a Patient off Course: A Randomised, Controlled, Crossover Study</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=B.%20W.%20Kenny">B. W. Kenny</a>, <a href="https://publications.waset.org/abstracts/search?q=D.Mansour"> D.Mansour</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20G.%20Mansour"> K. G. Mansour</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20Attia"> J. Attia</a>, <a href="https://publications.waset.org/abstracts/search?q=B.%20Meads"> B. Meads </a> </p> <p class="card-text"><strong>Abstract:</strong></p> There is currently insufficient evidence to make a conclusive statement about safety while immobilized in a short arm cast. There is a paucity of published literature on this topic. The purpose of this study is to specifically evaluate short arm casts and their effect on driving abilities, particularly steering and avoidance of obstacles. The ability to drive safely is extrapolated from this data. In this study, a randomised, controlled, crossover design was used to assess 30 subjects randomised into 2 groups. A Logitech force feedback steering column and simulated driving program with a standardised road course was used. Objective outcome measures were the number of times subjects drove off the track, the number of crashes, time to lap completion and subjective assessment on whether wearing a short arm plaster cast impeded their steering. Recruited subjects had no upper limb pathology. The side of the applied plaster cast was randomised. The mean lap completion time reduced with repetition, the difference being statistically significant. There was no significant difference in mean number of times subjects in casts drove off the track (3 with vs. 3.07 without casts), average number of crashes (1.27 vs 0.97). Steering ability was not reduced whilst a subject was immobilised in a short arm Plaster of Paris cast, despite subject’s own impressions that their steering was impeded. This may help guide doctors in their advice to patients regarding driving in these casts. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=upper%20limb" title="upper limb">upper limb</a>, <a href="https://publications.waset.org/abstracts/search?q=arm%20injury" title=" arm injury"> arm injury</a>, <a href="https://publications.waset.org/abstracts/search?q=plaster%20cast" title=" plaster cast"> plaster cast</a>, <a href="https://publications.waset.org/abstracts/search?q=splint" title=" splint"> splint</a>, <a href="https://publications.waset.org/abstracts/search?q=driving" title=" driving"> driving</a>, <a href="https://publications.waset.org/abstracts/search?q=automobile" title=" automobile"> automobile</a>, <a href="https://publications.waset.org/abstracts/search?q=bone%20fracture" title=" bone fracture "> bone fracture </a> </p> <a href="https://publications.waset.org/abstracts/20977/driving-in-a-short-arm-plaster-cast-steer-a-patient-off-course-a-randomised-controlled-crossover-study" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/20977.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">247</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">177</span> Catalytic Performance of Fe3O4 Nanoparticles (Fe3O4 NPs) in the Synthesis of Pyrazolines </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ali%20Gharib">Ali Gharib</a>, <a href="https://publications.waset.org/abstracts/search?q=Leila%20Vojdanifard"> Leila Vojdanifard</a>, <a href="https://publications.waset.org/abstracts/search?q=Nader%20Noroozi%20Pesyan"> Nader Noroozi Pesyan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Different Pyrazoline derivatives were synthesized by cyclization of substituted chalcone derivatives in presence of hydrazine hydrate. A series of novel 1,3,5-triaryl pyrazoline derivatives has been synthesized by the reaction of chalcone and phenylhydrazine in the presence of the Fe3O4 NPs, in high yields. The structures of compounds obtained were determined by IR and 1H NMR spectra. Fe3O4 NPs was recycled and no appreciable change in activity was noticed after three cycles. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=pyrazoline" title="pyrazoline">pyrazoline</a>, <a href="https://publications.waset.org/abstracts/search?q=chalcone" title=" chalcone"> chalcone</a>, <a href="https://publications.waset.org/abstracts/search?q=nanoparticles" title=" nanoparticles"> nanoparticles</a>, <a href="https://publications.waset.org/abstracts/search?q=Fe3O4" title=" Fe3O4"> Fe3O4</a>, <a href="https://publications.waset.org/abstracts/search?q=catalyst" title=" catalyst"> catalyst</a>, <a href="https://publications.waset.org/abstracts/search?q=synthesis" title=" synthesis"> synthesis</a> </p> <a href="https://publications.waset.org/abstracts/22630/catalytic-performance-of-fe3o4-nanoparticles-fe3o4-nps-in-the-synthesis-of-pyrazolines" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/22630.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">400</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">176</span> Synthesis of Uio-66 Metal Organic Framework Impregnated Thin-Film Nanocomposite Membrane for the Desalination via Pressure Assisted Osmosis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rajesha%20Kumar%20Alambi">Rajesha Kumar Alambi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mansour%20Ahmed"> Mansour Ahmed</a>, <a href="https://publications.waset.org/abstracts/search?q=Garudachari%20Bhadrachari"> Garudachari Bhadrachari</a>, <a href="https://publications.waset.org/abstracts/search?q=Safiyah%20Al-Muqahwi"> Safiyah Al-Muqahwi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mansour%20Al-Rughaib"> Mansour Al-Rughaib</a>, <a href="https://publications.waset.org/abstracts/search?q=Jibu%20P.%20Thomas"> Jibu P. Thomas</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Membrane-based pressure assisted osmosis (PAO) for seawater desalination has the potential to overcome the challenges of forward osmosis technology. PAO technology is gaining interest among the research community to ensure the sustainability of freshwater with a significant reduction in energy. The requirements of PAO membranes differ from the FO membrane; as it needs a slightly higher porous with sufficient mechanical strength to overcome the applied hydraulic pressure. The porous metal-organic framework (MOF) as a filler for the membrane synthesis has demonstrated a great potential to generate new channels for water transport, high selectivity, and reduced fouling propensity. Accordingly, this study is aimed at fabricating the UiO-66 MOF-based thin film nanocomposite membranes with specific characteristics for water desalination by PAO. A PAO test unit manufactured by Trevi System, USA, was used to determine the performance of the synthesized membranes. Further, the synthesized membranes were characterized in terms of morphological features, hydrophilicity, surface roughness, and mechanical properties. The 0.05 UiO-66 loaded membrane produced highest flux of 38L/m2h and with low reverse salt leakage of 2.1g/m²h for the DI water as feed solution and 2.0 M NaCl as draw solutions at the inlet feed pressure of 0.6 MPa. The new membranes showed a good tolerance toward the applied hydraulic pressure attributed to the fabric support used during the membrane synthesis. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=metal%20organic%20framework" title="metal organic framework">metal organic framework</a>, <a href="https://publications.waset.org/abstracts/search?q=composite%20membrane" title=" composite membrane"> composite membrane</a>, <a href="https://publications.waset.org/abstracts/search?q=desalination" title=" desalination"> desalination</a>, <a href="https://publications.waset.org/abstracts/search?q=salt%20rejection" title=" salt rejection"> salt rejection</a>, <a href="https://publications.waset.org/abstracts/search?q=flux" title=" flux"> flux</a> </p> <a href="https://publications.waset.org/abstracts/151847/synthesis-of-uio-66-metal-organic-framework-impregnated-thin-film-nanocomposite-membrane-for-the-desalination-via-pressure-assisted-osmosis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/151847.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">175</span> Evaluation of the Performance of ACTIFLO® Clarifier in the Treatment of Mining Wastewaters: Case Study of Costerfield Mining Operations, Victoria, Australia</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Seyed%20Mohsen%20Samaei">Seyed Mohsen Samaei</a>, <a href="https://publications.waset.org/abstracts/search?q=Shirley%20Gato-Trinidad"> Shirley Gato-Trinidad</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A pre-treatment stage prior to reverse osmosis (RO) is very important to ensure the long-term performance of the RO membranes in any wastewater treatment using RO. This study aims to evaluate the application of the Actiflo<sup>®</sup> clarifier as part of a pre-treatment unit in mining operations. It involves performing analytical testing on RO feed water before and after installation of Actiflo<sup>®</sup> unit. Water samples prior to RO plant stage were obtained on different dates from Costerfield mining operations in Victoria, Australia. Tests were conducted in an independent laboratory to determine the concentration of various compounds in RO feed water before and after installation of Actiflo<sup>®</sup> unit during the entire evaluated period from December 2015 to June 2018. Water quality analysis shows that the quality of RO feed water has remarkably improved since installation of Actiflo<sup>®</sup> clarifier. Suspended solids (SS) and turbidity removal efficiencies has been improved by 91 and 85 percent respectively in pre-treatment system since the installation of Actiflo<sup>®</sup>. The Actiflo<sup>® </sup>clarifier proved to be a valuable part of pre-treatment system prior to RO. It has the potential to conveniently condition the mining wastewater prior to RO unit, and reduce the risk of RO physical failure and irreversible fouling. Consequently, reliable and durable operation of RO unit with minimum requirement for RO membrane replacement is expected with Actiflo<sup>®</sup> in use. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ACTIFLO%20%C2%AE%20clarifier" title="ACTIFLO ® clarifier">ACTIFLO ® clarifier</a>, <a href="https://publications.waset.org/abstracts/search?q=mining%20wastewater" title=" mining wastewater"> mining wastewater</a>, <a href="https://publications.waset.org/abstracts/search?q=reverse%20osmosis" title=" reverse osmosis"> reverse osmosis</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/96179/evaluation-of-the-performance-of-actiflo-clarifier-in-the-treatment-of-mining-wastewaters-case-study-of-costerfield-mining-operations-victoria-australia" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/96179.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">193</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">174</span> Development of Monitoring Blood Bank Center Based PIC Microcontroller Using CAN Communication</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kaiwan%20S.%20Ismael">Kaiwan S. Ismael</a>, <a href="https://publications.waset.org/abstracts/search?q=Ergun%20Ercelebi"> Ergun Ercelebi</a>, <a href="https://publications.waset.org/abstracts/search?q=Majeed%20Nader"> Majeed Nader</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper describes the design and implementation of a hardware setup for online monitoring of 24 refrigerators inside blood bank center using the microcontroller and CAN bus for communications between each node. Due to the security of locations in the blood bank hall and difficulty of monitoring of each refrigerator separately, this work proposes a solution to monitor all the blood bank refrigerators in one location. CAN-bus system is used because it has many applications and advantages, especially for this system due to easy in use, low cost, providing a reduction in wiring, fast to repair and easily expanding the project without a problem. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=control%20area%20network%20%28CAN%29" title="control area network (CAN)">control area network (CAN)</a>, <a href="https://publications.waset.org/abstracts/search?q=monitoring%20blood%20bank%20center" title=" monitoring blood bank center"> monitoring blood bank center</a>, <a href="https://publications.waset.org/abstracts/search?q=PIC%20microcontroller" title=" PIC microcontroller"> PIC microcontroller</a>, <a href="https://publications.waset.org/abstracts/search?q=MPLAB%20IDE" title=" MPLAB IDE"> MPLAB IDE</a> </p> <a href="https://publications.waset.org/abstracts/40933/development-of-monitoring-blood-bank-center-based-pic-microcontroller-using-can-communication" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/40933.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">483</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">173</span> Data Transformations in Data Envelopment Analysis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mansour%20Mohammadpour">Mansour Mohammadpour</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Data transformation refers to the modification of any point in a data set by a mathematical function. When applying transformations, the measurement scale of the data is modified. Data transformations are commonly employed to turn data into the appropriate form, which can serve various functions in the quantitative analysis of the data. This study addresses the investigation of the use of data transformations in Data Envelopment Analysis (DEA). Although data transformations are important options for analysis, they do fundamentally alter the nature of the variable, making the interpretation of the results somewhat more complex. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=data%20transformation" title="data transformation">data transformation</a>, <a href="https://publications.waset.org/abstracts/search?q=data%20envelopment%20analysis" title=" data envelopment analysis"> data envelopment analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=undesirable%20data" title=" undesirable data"> undesirable data</a>, <a href="https://publications.waset.org/abstracts/search?q=negative%20data" title=" negative data"> negative data</a> </p> <a href="https://publications.waset.org/abstracts/192236/data-transformations-in-data-envelopment-analysis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/192236.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">20</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">172</span> A Brief Review on the Relationship between Pain and Sociology</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hanieh%20Sakha">Hanieh Sakha</a>, <a href="https://publications.waset.org/abstracts/search?q=Nader%20Nader"> Nader Nader</a>, <a href="https://publications.waset.org/abstracts/search?q=Haleh%20Farzin"> Haleh Farzin</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Introduction: Throughout history, pain theories have been supposed by biomedicine, especially regarding its diagnosis and treatment aspects. Therefore, the feeling of pain is not only a personal experience and is affected by social background; therefore, it involves extensive systems of signals. The challenges in emotional and sentimental dimensions of pain originate from scientific medicine (i.e., the dominant theory is also referred to as the specificity theory); however, this theory has accepted some alterations by emerging physiology. Then, Von Frey suggested the theory of cutaneous senses (i.e., Muller’s concept: the common sensation of combined four major skin receptors leading to a proper sensation) 50 years after the specificity theory. The pain pathway was composed of spinothalamic tracts and thalamus with an inhibitory effect on the cortex. Pain is referred to as a series of unique experiences with various reasons and qualities. Despite the gate control theory, the biological aspect overcomes the social aspect. Vrancken provided a more extensive definition of pain and found five approaches: Somatico-technical, dualistic body-oriented, behaviorist, phenomenological, and consciousness approaches. The Western model combined physical, emotional, and existential aspects of the human body. On the other hand, Kotarba felt confused about the basic origins of chronic pain. Freund demonstrated and argued with Durkhemian about the sociological approach to emotions. Lynch provided a piece of evidence about the correlation between cardiovascular disease and emotionally life-threatening occurrences. Helman supposed a distinction between private and public pain. Conclusion: The consideration of the emotional aspect of pain could lead to effective, emotional, and social responses to pain. On the contrary, the theory of embodiment is based on the sociological view of health and illness. Social epidemiology shows an imbalanced distribution of health, illness, and disability among various social groups. The social support and socio-cultural level can result in several types of pain. It means the status of athletes might define their pain experiences. Gender is one of the important contributing factors affecting the type of pain (i.e., females are more likely to seek health services for pain relief.) Chronic non-cancer pain (CNCP) has become a serious public health issue affecting more than 70 million people globally. CNCP is a serious public health issue which is caused by the lack of awareness about chronic pain management among the general population. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=pain" title="pain">pain</a>, <a href="https://publications.waset.org/abstracts/search?q=sociology" title=" sociology"> sociology</a>, <a href="https://publications.waset.org/abstracts/search?q=sociological" title=" sociological"> sociological</a>, <a href="https://publications.waset.org/abstracts/search?q=body" title=" body"> body</a> </p> <a href="https://publications.waset.org/abstracts/168773/a-brief-review-on-the-relationship-between-pain-and-sociology" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/168773.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">70</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">171</span> Buckling Analysis of 2D Frames Using the Modified Newmark Method</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Seyed%20Amin%20Vakili">Seyed Amin Vakili</a>, <a href="https://publications.waset.org/abstracts/search?q=Sahar%20Sadat%20Vakili"> Sahar Sadat Vakili</a>, <a href="https://publications.waset.org/abstracts/search?q=Seyed%20Ehsan%20Vakili"> Seyed Ehsan Vakili</a>, <a href="https://publications.waset.org/abstracts/search?q=Nader%20Abdoli%20Yazdi"> Nader Abdoli Yazdi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The main purpose of this paper is to present the Modified Newmark Method of buckling analysis frame considering the effect of the axial load. The discussion will be restricted to plane frameworks containing a constant cross-section for each element. In addition, it is assumed that the frames are prevented from out-of-plane deflection. In this method, stiffness matrix of the structure is considered to be constant. The most important advantage of such a method is that it obtains both upper and lower critical loads. The advanced of the present method is fast convergence, ability to use computer simulations, and ability to model structures with semi-rigid support conditions using linear and rotational spring. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=buckling" title="buckling">buckling</a>, <a href="https://publications.waset.org/abstracts/search?q=stability" title=" stability"> stability</a>, <a href="https://publications.waset.org/abstracts/search?q=frame" title=" frame"> frame</a>, <a href="https://publications.waset.org/abstracts/search?q=modified%20newmark%20method" title=" modified newmark method"> modified newmark method</a> </p> <a href="https://publications.waset.org/abstracts/42638/buckling-analysis-of-2d-frames-using-the-modified-newmark-method" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/42638.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">170</span> Umm Arrazam, Libyan Driling Fluid Resistivity Evaluation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Omar%20Hussein%20El%20Ayadi">Omar Hussein El Ayadi</a>, <a href="https://publications.waset.org/abstracts/search?q=Ali%20Mustafa%20Alkekly"> Ali Mustafa Alkekly</a>, <a href="https://publications.waset.org/abstracts/search?q=Nader%20Ahmad%20Musa"> Nader Ahmad Musa</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Search and evaluate locale source of raw material which can be used as drilling fluid is one of most important economical target. Hopefully, to use Libyan clay that cost less than importing it from outside. Resistivity measurement and control is of primary concern in connection with electrical logging. The influences of resistivity utilizing Umm Arrazam clay were laboratory investigated at ambient condition (room temperature, atmospheric pressure) to fulfill the aim of the study. Several tests were carried-out on three sets of mud mixture with different densities (8.7, 9.0, and 9.3 ppg) as base mud. The resistivity of mud, mud filtrate, and mud cake were measured using resistivity- meter. Mud water losses were also measured. Several results obtained to describe the relationship between the resistivity ratios of mud filtrate to the mud, and the mud cake to mud. The summary of conclusion is that there are no great differences were obtained during comparison of resistivity and water loss of Umm Arrazam and Wyoming Clay. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=petroleum" title="petroleum">petroleum</a>, <a href="https://publications.waset.org/abstracts/search?q=drilling" title=" drilling"> drilling</a>, <a href="https://publications.waset.org/abstracts/search?q=mug" title=" mug"> mug</a>, <a href="https://publications.waset.org/abstracts/search?q=geological%20engineering" title=" geological engineering"> geological engineering</a> </p> <a href="https://publications.waset.org/abstracts/39547/umm-arrazam-libyan-driling-fluid-resistivity-evaluation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/39547.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">474</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">169</span> Oxidation of Alcohols Types Using Nano-Graphene Oxide (NGO) as Heterogeneous Catalyst</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ali%20Gharib">Ali Gharib</a>, <a href="https://publications.waset.org/abstracts/search?q=Leila%20Vojdanifard"> Leila Vojdanifard</a>, <a href="https://publications.waset.org/abstracts/search?q=Nader%20Noroozi%20Pesyan"> Nader Noroozi Pesyan</a>, <a href="https://publications.waset.org/abstracts/search?q=Mina%20Roshani"> Mina Roshani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We describe an efficient method for oxidation of alcohols to related aldehydes and ketones by hydrogen peroxide as oxidizing agent, under reflux conditions. Nano-graphene oxide (NGO) as a heterogeneous catalyst was used and had their activity compared with other various catalysts. This catalyst was found to be an excellent catalyst for oxidation of alcohols. The effects of various parameters, including catalyst type, nature of the substituent in the alcohols and temperature, on the yield of the carboxylic acids were studied. Nano-graphene oxide was synthesized by the oxidation of graphite powders. This nanocatalyst was found to be highly efficient in this reaction and products were obtained in good to excellent yields. The recovered nano-catalyst was successfully reused for several runs without significant loss in its catalytic activity. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=nano-graphene%20oxide" title="nano-graphene oxide">nano-graphene oxide</a>, <a href="https://publications.waset.org/abstracts/search?q=oxidation" title=" oxidation"> oxidation</a>, <a href="https://publications.waset.org/abstracts/search?q=aldehyde" title=" aldehyde"> aldehyde</a>, <a href="https://publications.waset.org/abstracts/search?q=ketone" title=" ketone"> ketone</a>, <a href="https://publications.waset.org/abstracts/search?q=catalyst" title=" catalyst"> catalyst</a> </p> <a href="https://publications.waset.org/abstracts/40536/oxidation-of-alcohols-types-using-nano-graphene-oxide-ngo-as-heterogeneous-catalyst" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/40536.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">424</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">168</span> Urban Conservation Methodology for Heritage Areas Case Study "Qabel Street, Old Jeddah" </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hossam%20Elborombaly">Hossam Elborombaly</a>, <a href="https://publications.waset.org/abstracts/search?q=Nader%20Y.%20Azab"> Nader Y. Azab</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The Middle East region is rich with its architecture and urban settings. This makes it viable for exploring and applying different strategies that deal with conservation. Current context characterized by pollution, socioeconomic issues, behavioral problems, etc. affects architectural and urban heritage –literally- in all Middle Eastern countries. Although there have been numerous strategies in place to preserve and/ or rehabilitate heritage, all has been designed and implemented following political more than technical or methodical processes. This only resulted in more deterioration of the targeted areas. This paper explores different approaches in some selected Arab countries and relies on comparative analysis with some successful European experiences. The aim is to establish some solid basis for dealing with heritage areas; an approach that respects heritage and traditions without compromising sustainability or socioeconomic opportunities. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=conservation" title="conservation">conservation</a>, <a href="https://publications.waset.org/abstracts/search?q=heritage" title=" heritage"> heritage</a>, <a href="https://publications.waset.org/abstracts/search?q=identity" title=" identity"> identity</a>, <a href="https://publications.waset.org/abstracts/search?q=urban%20conservation%20methodology" title=" urban conservation methodology"> urban conservation methodology</a>, <a href="https://publications.waset.org/abstracts/search?q=" title=" "> </a> </p> <a href="https://publications.waset.org/abstracts/47595/urban-conservation-methodology-for-heritage-areas-case-study-qabel-street-old-jeddah" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/47595.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">393</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">167</span> Thermal Processing of Zn-Bi Layered Double Hydroxide ZnO Doped Bismuth for a Photo-Catalytic Efficiency under Light Visible</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Benyamina%20Imane">Benyamina Imane</a>, <a href="https://publications.waset.org/abstracts/search?q=Benalioua%20Bahia"> Benalioua Bahia</a>, <a href="https://publications.waset.org/abstracts/search?q=Mansour%20Meriem"> Mansour Meriem</a>, <a href="https://publications.waset.org/abstracts/search?q=Bentouami%20Abdelhadi"> Bentouami Abdelhadi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The objective of this study is to use a synthetic route of the layered double hydroxide as a method of zinc oxide by doping a transition metal. The material is heat-treated at different temperatures then tested on the photo-fading of an acid dye indigo carmine under visible radiation compared with ZnO. The photo catalytic efficiency of Bi-ZnO in a visible light of 500 W was tested on photo-bleaching of an indigoid dye in comparison with the commercial ZnO. Indeed, a complete discoloration of indigo carmine solution of 16 mg / L was obtained after 40 and 120 minutes of irradiation in the presence of ZnO and ZnO-Bi respectively. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=LDH" title="LDH">LDH</a>, <a href="https://publications.waset.org/abstracts/search?q=POA" title=" POA"> POA</a>, <a href="https://publications.waset.org/abstracts/search?q=photo-catalysis" title=" photo-catalysis"> photo-catalysis</a>, <a href="https://publications.waset.org/abstracts/search?q=Bi-ZnO%20doping" title=" Bi-ZnO doping"> Bi-ZnO doping</a> </p> <a href="https://publications.waset.org/abstracts/33450/thermal-processing-of-zn-bi-layered-double-hydroxide-zno-doped-bismuth-for-a-photo-catalytic-efficiency-under-light-visible" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/33450.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">453</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">166</span> Urban Conservation Methodology for Heritage Areas: A Case Study in Qabel Street, Old Jeddah</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hossam%20Hassan%20Elborombaly">Hossam Hassan Elborombaly</a>, <a href="https://publications.waset.org/abstracts/search?q=Nader%20Y.%20Azab"> Nader Y. Azab</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The Middle East region is rich with its architecture and urban settings. This makes it viable for exploring and applying different strategies that deal with conservation. Current context characterized by pollution, socioeconomic issues, behavioral problems, etc. affects architectural and urban heritage –literally- in all Middle Eastern countries. Although there have been numerous strategies in place to preserve and/ or rehabilitate heritage, all has been designed and implemented following political more than technical or methodical processes. This only resulted in more deterioration of the targeted areas. This paper explores different approaches in some selected Arab countries and relies on comparative analysis with some successful European experiences. The aim is to establish some solid basis for dealing with heritage areas; an approach that respects heritage and traditions without compromising sustainability or socioeconomic opportunities. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=rehabilitation" title="rehabilitation">rehabilitation</a>, <a href="https://publications.waset.org/abstracts/search?q=socioeconomic" title=" socioeconomic"> socioeconomic</a>, <a href="https://publications.waset.org/abstracts/search?q=urban%20conservation" title=" urban conservation"> urban conservation</a>, <a href="https://publications.waset.org/abstracts/search?q=urban%20strategy" title=" urban strategy"> urban strategy</a> </p> <a href="https://publications.waset.org/abstracts/34382/urban-conservation-methodology-for-heritage-areas-a-case-study-in-qabel-street-old-jeddah" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/34382.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">545</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">165</span> Effect of Surface Quality of 3D Printed Impeller on the Performance of a Centrifugal Compressor</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nader%20Zirak">Nader Zirak</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammadali%20Shirinbayan"> Mohammadali Shirinbayan</a>, <a href="https://publications.waset.org/abstracts/search?q=Abbas%20Tcharkhtchi"> Abbas Tcharkhtchi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Additive manufacturing is referred to as a method for fabrication of parts with a mechanism of layer by layer. Suitable economic efficiency and the ability to fabrication complex parts have made this method the focus of studies and industry. In recent years many studies focused on the fabrication of impellers, which is referred to as a key component of turbomachinery, through this technique. This study considers the important effect of the final surface quality of the impeller on the performance of the system, investigates the fabricated printed rotors through the fused deposition modeling with different process parameters. In this regard, the surface of each impeller was analyzed through the 3D scanner. The results show the vital role of surface quality on the final performance of the centrifugal compressor. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=additive%20manufacturing" title="additive manufacturing">additive manufacturing</a>, <a href="https://publications.waset.org/abstracts/search?q=impeller" title=" impeller"> impeller</a>, <a href="https://publications.waset.org/abstracts/search?q=centrifugal%20compressor" title=" centrifugal compressor"> centrifugal compressor</a>, <a href="https://publications.waset.org/abstracts/search?q=performance" title=" performance"> performance</a> </p> <a href="https://publications.waset.org/abstracts/145589/effect-of-surface-quality-of-3d-printed-impeller-on-the-performance-of-a-centrifugal-compressor" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/145589.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">164</span> Theoretical Paradigms for Total Quality Environmental Management (TQEM)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Hossein%20Khasmafkan%20Nezam">Mohammad Hossein Khasmafkan Nezam</a>, <a href="https://publications.waset.org/abstracts/search?q=Nader%20Chavoshi%20Boroujeni"> Nader Chavoshi Boroujeni</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamad%20Reza%20Veshaghi"> Mohamad Reza Veshaghi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Quality management is dominated by rational paradigms for the measurement and management of quality, but these paradigms start to ‘break down’, when faced with the inherent complexity of managing quality in intensely competitive changing environments. In this article, the various theoretical paradigms employed to manage quality are reviewed and the advantages and limitations of these paradigms are highlighted. A major implication of this review is that when faced with complexity, an ideological stance to any single strategy paradigm for total quality environmental management is ineffective. We suggest that as complexity increases and we envisage intensely competitive changing environments there will be a greater need to consider a multi-paradigm integrationist view of strategy for TQEM. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=total%20quality%20management%20%28TQM%29" title="total quality management (TQM)">total quality management (TQM)</a>, <a href="https://publications.waset.org/abstracts/search?q=total%20quality%20environmental%20management%20%28TQEM%29" title=" total quality environmental management (TQEM)"> total quality environmental management (TQEM)</a>, <a href="https://publications.waset.org/abstracts/search?q=ideologies%20%28philosophy%29" title=" ideologies (philosophy)"> ideologies (philosophy)</a>, <a href="https://publications.waset.org/abstracts/search?q=theoretical%20paradigms" title=" theoretical paradigms"> theoretical paradigms</a> </p> <a href="https://publications.waset.org/abstracts/44662/theoretical-paradigms-for-total-quality-environmental-management-tqem" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/44662.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">320</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">163</span> Numerical Simulation of Lightning Strike Direct Effects on Aircraft Skin Composite Laminate</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Muhammad%20Khalil">Muhammad Khalil</a>, <a href="https://publications.waset.org/abstracts/search?q=Nader%20Abuelfoutouh"> Nader Abuelfoutouh</a>, <a href="https://publications.waset.org/abstracts/search?q=Gasser%20Abdelal"> Gasser Abdelal</a>, <a href="https://publications.waset.org/abstracts/search?q=Adrian%20Murphy"> Adrian Murphy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Nowadays, the direct effects of lightning to aircrafts are of great importance because of the massive use of composite materials. In comparison with metallic materials, composites present several weaknesses for lightning strike direct effects. Especially, their low electrical and thermal conductivities lead to severe lightning strike damage. The lightning strike direct effects are burning, heating, magnetic force, sparking and arcing. As the problem is complex, we investigated it gradually. A magnetohydrodynamics (MHD) model is developed to simulate the lightning strikes in order to estimate the damages on the composite materials. Then, a coupled thermal-electrical finite element analysis is used to study the interaction between the lightning arc and the composite laminate and to investigate the material degradation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=composite%20structures" title="composite structures">composite structures</a>, <a href="https://publications.waset.org/abstracts/search?q=lightning%20multiphysics" title=" lightning multiphysics"> lightning multiphysics</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetohydrodynamic%20%28MHD%29" title=" magnetohydrodynamic (MHD)"> magnetohydrodynamic (MHD)</a>, <a href="https://publications.waset.org/abstracts/search?q=coupled%20thermal-electrical%20analysis" title=" coupled thermal-electrical analysis"> coupled thermal-electrical analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=thermal%20plasmas." title=" thermal plasmas."> thermal plasmas.</a> </p> <a href="https://publications.waset.org/abstracts/81848/numerical-simulation-of-lightning-strike-direct-effects-on-aircraft-skin-composite-laminate" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/81848.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">369</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">162</span> People Management, Knowledge Sharing and Intermediary Variables</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nizar%20Mansour">Nizar Mansour</a>, <a href="https://publications.waset.org/abstracts/search?q=Chiha%20Gaha"> Chiha Gaha</a>, <a href="https://publications.waset.org/abstracts/search?q=Emna%20Gara"> Emna Gara</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The present research investigates the relationship among HRM practices, knowledge sharing behavior and a certain number of intermediary variables in the context of Tunisian knowledge-intensive firms. Results suggest that five HR practices influence either directly or indirectly the knowledge sharing behavior through enhancing the value of human capital and fostering a learning-oriented organizational climate. Results have strong theoretical implications for both the fields of knowledge management and strategic human resource management. Managerial implications are also derived. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=human%20capital" title="human capital">human capital</a>, <a href="https://publications.waset.org/abstracts/search?q=knowledge%20intensive%20firms" title=" knowledge intensive firms"> knowledge intensive firms</a>, <a href="https://publications.waset.org/abstracts/search?q=knowledge%20sharing" title=" knowledge sharing"> knowledge sharing</a>, <a href="https://publications.waset.org/abstracts/search?q=organizational%20climate" title=" organizational climate"> organizational climate</a>, <a href="https://publications.waset.org/abstracts/search?q=Tunisia" title=" Tunisia"> Tunisia</a> </p> <a href="https://publications.waset.org/abstracts/41002/people-management-knowledge-sharing-and-intermediary-variables" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/41002.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">332</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">161</span> Carbonylative Cross Coupling of 2-Bromopyridine with Different Boronic Acids under Carbon Monoxide Atmosphere </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=N.%20Touj">N. Touj</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Sauthier"> M. Sauthier</a>, <a href="https://publications.waset.org/abstracts/search?q=L.%20Mansour"> L. Mansour</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20Hamdi"> N. Hamdi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The palladium NHC complexes are one of the most interesting and widely investigated complexes in different catalytic transformations, especially C–C bond. Thus, the use of N-heterocyclic carbenes associated with palladium has been reported as efficient catalysts for the carbonyl coupling under mild and varied conditions. Herein, we report the synthesis, characterization, and cytotoxic activities of two new families of benzimidazolium salts. Then we studied the use of this class of benzimidazolium salts as a ligand in the carbonylative cross-coupling of 2-bromopyridine with different boronic acids under CO atmosphere to form unsymmetrical arylpyridine ketones. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=NHC-Pd%28II%29%20catalysts" title="NHC-Pd(II) catalysts">NHC-Pd(II) catalysts</a>, <a href="https://publications.waset.org/abstracts/search?q=carbonylative%20Suzuki%20cross-coupling%20reaction" title=" carbonylative Suzuki cross-coupling reaction"> carbonylative Suzuki cross-coupling reaction</a>, <a href="https://publications.waset.org/abstracts/search?q=arylboronic%20acids" title=" arylboronic acids"> arylboronic acids</a>, <a href="https://publications.waset.org/abstracts/search?q=2-bromopyridine" title=" 2-bromopyridine"> 2-bromopyridine</a>, <a href="https://publications.waset.org/abstracts/search?q=unsymmetrical%20arylpyridine%20ketones" title=" unsymmetrical arylpyridine ketones"> unsymmetrical arylpyridine ketones</a> </p> <a href="https://publications.waset.org/abstracts/131435/carbonylative-cross-coupling-of-2-bromopyridine-with-different-boronic-acids-under-carbon-monoxide-atmosphere" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/131435.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">163</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">160</span> EEG Diagnosis Based on Phase Space with Wavelet Transforms for Epilepsy Detection</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohmmad%20A.%20Obeidat">Mohmmad A. Obeidat</a>, <a href="https://publications.waset.org/abstracts/search?q=Amjed%20Al%20Fahoum"> Amjed Al Fahoum</a>, <a href="https://publications.waset.org/abstracts/search?q=Ayman%20M.%20Mansour"> Ayman M. Mansour</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The recognition of an abnormal activity of the brain functionality is a vital issue. To determine the type of the abnormal activity either a brain image or brain signal are usually considered. Imaging localizes the defect within the brain area and relates this area with somebody functionalities. However, some functions may be disturbed without affecting the brain as in epilepsy. In this case, imaging may not provide the symptoms of the problem. A cheaper yet efficient approach that can be utilized to detect abnormal activity is the measurement and analysis of the electroencephalogram (EEG) signals. The main goal of this work is to come up with a new method to facilitate the classification of the abnormal and disorder activities within the brain directly using EEG signal processing, which makes it possible to be applied in an on-line monitoring system. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=EEG" title="EEG">EEG</a>, <a href="https://publications.waset.org/abstracts/search?q=wavelet" title=" wavelet"> wavelet</a>, <a href="https://publications.waset.org/abstracts/search?q=epilepsy" title=" epilepsy"> epilepsy</a>, <a href="https://publications.waset.org/abstracts/search?q=detection" title=" detection"> detection</a> </p> <a href="https://publications.waset.org/abstracts/17206/eeg-diagnosis-based-on-phase-space-with-wavelet-transforms-for-epilepsy-detection" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/17206.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">538</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">159</span> A Time since of Injection Model for Hepatitis C Amongst People Who Inject Drugs</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nader%20Al-Rashidi">Nader Al-Rashidi</a>, <a href="https://publications.waset.org/abstracts/search?q=David%20Greenhalgh"> David Greenhalgh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Mathematical modelling techniques are now being used by health organizations worldwide to help understand the likely impact that intervention strategies treatment options and combinations of these have on the prevalence and incidence of hepatitis C virus (HCV) in the people who inject drugs (PWID) population. In this poster, we develop a deterministic, compartmental mathematical model to approximate the spread of the HCV in a PWID population that has been divided into two groups by time since onset of injection. The model assumes that after injection needles adopt the most infectious state of their previous state or that of the PWID who last injected with them. Using analytical techniques, we find that the model behaviour is determined by the basic reproductive number R₀, where R₀ = 1 is a critical threshold separating two different outcomes. The disease-free equilibrium is globally stable if R₀ ≤ 1 and unstable if R₀ > 1. Additionally, we make some simulations where have confirmed that the model tends to this endemic equilibrium value with realistic parameter values giving an HCV prevalence. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hepatitis%20C" title="hepatitis C">hepatitis C</a>, <a href="https://publications.waset.org/abstracts/search?q=people%20who%20inject%20drugs" title=" people who inject drugs"> people who inject drugs</a>, <a href="https://publications.waset.org/abstracts/search?q=HCV" title=" HCV"> HCV</a>, <a href="https://publications.waset.org/abstracts/search?q=PWID" title=" PWID"> PWID</a> </p> <a href="https://publications.waset.org/abstracts/107638/a-time-since-of-injection-model-for-hepatitis-c-amongst-people-who-inject-drugs" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/107638.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">144</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">158</span> Qualitative Risk Assessment of Rift Valley Fever Vaccine Production</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohammed%20E.%20Mansour">Mohammed E. Mansour</a>, <a href="https://publications.waset.org/abstracts/search?q=Tamador%20M.%20A.%20Elhassan"> Tamador M. A. Elhassan</a>, <a href="https://publications.waset.org/abstracts/search?q=Nahid%20A.%20Ibrahim"> Nahid A. Ibrahim</a>, <a href="https://publications.waset.org/abstracts/search?q=Awatif%20A.%20Ahmed"> Awatif A. Ahmed</a>, <a href="https://publications.waset.org/abstracts/search?q=Manal%20A.%20Abdalla"> Manal A. Abdalla</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Rift valley fever (RVF) is mosquito-borne disease. RVF is transboundary zoonotic disease. It has socioeconomic and public health importance. This paper describes qualitative risk of the RVF vaccine production. RVF is endemic in the Sudan. It has been reported in Sudan due to abundance of Ades Eqytie. Thus, there is huge effort to control it. Vaccination practices had significant role to control and manage RVF. The risk assessment explains the likelihood of a risk as likely. Thus, insecticides and repellents synergize the effort of the vaccination. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=qualitative%20analysis" title="qualitative analysis">qualitative analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=risk%20assessment" title=" risk assessment"> risk assessment</a>, <a href="https://publications.waset.org/abstracts/search?q=rift%20valley%20fever%20vaccine" title=" rift valley fever vaccine"> rift valley fever vaccine</a>, <a href="https://publications.waset.org/abstracts/search?q=quality%20control" title=" quality control"> quality control</a> </p> <a href="https://publications.waset.org/abstracts/34689/qualitative-risk-assessment-of-rift-valley-fever-vaccine-production" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/34689.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">512</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">157</span> Ground States of Structure of Even ¹⁰⁴-¹⁰⁶ Ru Isotopes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=I.%20Hossain">I. Hossain</a>, <a href="https://publications.waset.org/abstracts/search?q=Huda%20H.%20Kassim"> Huda H. Kassim</a>, <a href="https://publications.waset.org/abstracts/search?q=Fadhil%20I.%20Sharrad"> Fadhil I. Sharrad</a>, <a href="https://publications.waset.org/abstracts/search?q=Said%20A.%20Mansour"> Said A. Mansour</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this conference, we apply the interacting boson model-1 (IBM-1) formula for U(5) symmetry in order to calculate the energy levels and reduced transition probabilities for a few yrast transitions in Ru with neutron N=60, 62. The neutron rich even-even isotopes of Ru are very interesting to investigate using IBM-1, because even 104,106Ru isotopes are great consequence due to excited near the magic number 50. The calculation of ground state band and B(E2) values using IBM-1 for Z=44 are not calculated to describe the valuable information of nuclear structure by U(5) limit. The parameters in the formula are deduced based on the experimental energy level and value of B(E2, 2+->0+). The yrast states and transition strength B(E2) from 1st 4+ to 1st 2+, 1st 6+ to 1st 4+ and 1st 8+ to 1st 6+ states of Ru for even N= 60, 62 were calculated. The quadrupole moments, deformation parameters and U(5) limit were discussed for those nuclei. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=B%28E2%29" title="B(E2)">B(E2)</a>, <a href="https://publications.waset.org/abstracts/search?q=energy%20level" title=" energy level"> energy level</a>, <a href="https://publications.waset.org/abstracts/search?q=%C2%B9%E2%81%B0%E2%81%B4Ru" title=" ¹⁰⁴Ru"> ¹⁰⁴Ru</a>, <a href="https://publications.waset.org/abstracts/search?q=%C2%B9%E2%81%B0%E2%81%B6Ru" title=" ¹⁰⁶Ru"> ¹⁰⁶Ru</a> </p> <a href="https://publications.waset.org/abstracts/56470/ground-states-of-structure-of-even-14-16-ru-isotopes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/56470.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">348</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">156</span> Isolation, Structure Elucidation, and Biological Evaluation of Acetylated Flavonoid Glycosides from Centaurium spicatum</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdelaaty%20A.%20Shahat">Abdelaaty A. Shahat</a>, <a href="https://publications.waset.org/abstracts/search?q=Mansour%20S.%20Alsaid"> Mansour S. Alsaid</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Four Acetylated ﬂavonol glycosides were isolated from Centaurium spicatum (L.) Fritsch (Gentianaceae). Structure elucidation, especially the localization of the acetyl groups, and complete 1H and 13C NMR assignments of these biologically active compounds were carried out using one- and two-dimensional NMR methods, including CNMR, DEPT-135 and DEPT-90 and gradient-assisted experiments such as DQF-COSY, TOCSY, HSQC and HMBC experiments. The antioxidant activities of the new acetylated flavonoid glycosides using DPPH• assay were determined. The compounds tested showed a good DPPH• activity compared with control, but their activity was lower than that of their corresponding aglycone, quercetin. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Centaurium%20spicatum" title="Centaurium spicatum">Centaurium spicatum</a>, <a href="https://publications.waset.org/abstracts/search?q=flavonoids" title=" flavonoids"> flavonoids</a>, <a href="https://publications.waset.org/abstracts/search?q=biological%20activity" title=" biological activity"> biological activity</a>, <a href="https://publications.waset.org/abstracts/search?q=isolation" title=" isolation"> isolation</a>, <a href="https://publications.waset.org/abstracts/search?q=glycosides" title=" glycosides"> glycosides</a> </p> <a href="https://publications.waset.org/abstracts/20214/isolation-structure-elucidation-and-biological-evaluation-of-acetylated-flavonoid-glycosides-from-centaurium-spicatum" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/20214.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">155</span> Real-time Rate and Rhythms Feedback Control System in Patients with Atrial Fibrillation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20A.%20Obeidat">Mohammad A. Obeidat</a>, <a href="https://publications.waset.org/abstracts/search?q=Ayman%20M.%20Mansour"> Ayman M. Mansour</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Capturing the dynamic behavior of the heart to improve control performance, enhance robustness, and support diagnosis is very important in establishing real time models for the heart. Control Techniques and strategies have been utilized to improve system costs, reliability, and estimation accuracy for different types of systems such as biomedical, industrial, and other systems that required tuning input/output relation and/or monitoring. Simulations are performed to illustrate potential applications of the technology. In this research, a new control technology scheme is used to enhance the performance of the Af system and meet the design specifications. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=atrial%20fibrillation" title="atrial fibrillation">atrial fibrillation</a>, <a href="https://publications.waset.org/abstracts/search?q=dynamic%20behavior" title=" dynamic behavior"> dynamic behavior</a>, <a href="https://publications.waset.org/abstracts/search?q=closed%20loop" title=" closed loop"> closed loop</a>, <a href="https://publications.waset.org/abstracts/search?q=signal" title=" signal"> signal</a>, <a href="https://publications.waset.org/abstracts/search?q=filter" title=" filter"> filter</a> </p> <a href="https://publications.waset.org/abstracts/41660/real-time-rate-and-rhythms-feedback-control-system-in-patients-with-atrial-fibrillation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/41660.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">421</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">154</span> Seismic Behavior of Short Core Buckling Restrained Braces</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nader%20Hoveidae">Nader Hoveidae</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper investigates the seismic behavior of a new type of buckling restrained braces (BRBs) called "Short Core BRBs" in which a shorter core segment is used as an energy dissipating part and an elastic part is serially connected to the core. It seems that a short core BRB is easy to be fabricated, inspected and replaced after a severe earthquake. In addition, the energy dissipating capacity in a short core BRB is higher because of larger core strains. However, higher core strain demands result in high potential of low-cycle fatigue fracture. In this paper, a strategy is proposed to estimate the minimum core length in a short core BRBs. The seismic behavior of short core buckling restrained brace is experimentally examined. The results revealed that the short core buckling restrained brace is able to sustain large inelastic strains without any significant instability or strength degradation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=short%20core" title="short core">short core</a>, <a href="https://publications.waset.org/abstracts/search?q=Buckling%20Restrained%20Brace" title=" Buckling Restrained Brace"> Buckling Restrained Brace</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=cyclic%20test" title=" cyclic test"> cyclic test</a> </p> <a href="https://publications.waset.org/abstracts/37090/seismic-behavior-of-short-core-buckling-restrained-braces" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/37090.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">360</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">153</span> The Effect of Coronavirus on Social Adjustment and Depression of Arak University Students</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mansour%20Abdi">Mansour Abdi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aim of this study has been the investigation of coronavirus influence/impact on social adjustment and depression of Arak University students. The samples of study are 100 available female students at Arak University. They were assessed by the Bell Social Adjustment Questionnaire and Beck Depression. They were asked to answer two situations before the corona outbreak and the present. The result of evaluating/assessing the difference between social adjustment before and after coronavirus was not significant but, the averages indicate a decrease in the adjustment of students before and after the coronavirus. Meanwhile, there was no significant difference in depression findings but, in the present, the average amount of depression indicated an increase than its amount before the corona. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=depression" title="depression">depression</a>, <a href="https://publications.waset.org/abstracts/search?q=social%20adjustment%20%20student" title=" social adjustment student"> social adjustment student</a>, <a href="https://publications.waset.org/abstracts/search?q=coronavirus" title=" coronavirus"> coronavirus</a>, <a href="https://publications.waset.org/abstracts/search?q=student" title=" student"> student</a> </p> <a href="https://publications.waset.org/abstracts/151816/the-effect-of-coronavirus-on-social-adjustment-and-depression-of-arak-university-students" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/151816.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">120</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">152</span> Clustering of Extremes in Financial Returns: A Comparison between Developed and Emerging Markets</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sara%20Ali%20Alokley">Sara Ali Alokley</a>, <a href="https://publications.waset.org/abstracts/search?q=Mansour%20Saleh%20Albarrak"> Mansour Saleh Albarrak</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper investigates the dependency or clustering of extremes in the financial returns data by estimating the extremal index value θ∈[0,1]. The smaller the value of θ the more clustering we have. Here we apply the method of Ferro and Segers (2003) to estimate the extremal index for a range of threshold values. We compare the dependency structure of extremes in the developed and emerging markets. We use the financial returns of the stock market index in the developed markets of US, UK, France, Germany and Japan and the emerging markets of Brazil, Russia, India, China and Saudi Arabia. We expect that more clustering occurs in the emerging markets. This study will help to understand the dependency structure of the financial returns data. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=clustring" title="clustring">clustring</a>, <a href="https://publications.waset.org/abstracts/search?q=extremes" title=" extremes"> extremes</a>, <a href="https://publications.waset.org/abstracts/search?q=returns" title=" returns"> returns</a>, <a href="https://publications.waset.org/abstracts/search?q=dependency" title=" dependency"> dependency</a>, <a href="https://publications.waset.org/abstracts/search?q=extermal%20index" title=" extermal index"> extermal index</a> </p> <a href="https://publications.waset.org/abstracts/65436/clustering-of-extremes-in-financial-returns-a-comparison-between-developed-and-emerging-markets" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/65436.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">405</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">151</span> Degradation of Poly -β- Hydroxybutyrate by Trichoderma asperellum</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nuha%20Mansour%20Alhazmi">Nuha Mansour Alhazmi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Replacement of petro-based plastics by a biodegradable plastic are vastly growing process. Poly-β-hydroxybutyrate (PHB) is a biodegradable biopolymer, synthesized by some bacterial genera. The objective of the current study is to explore the ability of some fungi to biodegrade PHB. The degradation of (PHB) was detected in Petri dish by the formation of a clear zone around the fungal colonies due to the production of depolymerase enzyme which has an interesting role in the PHB degradation process. Among 10 tested fungi, the most active PHB biodegraded fungi were identified as Trichoderma asperellum using morphological and molecular characters. The highest PHB degradation was at 25°C, pH 7.5 after 7 days of incubation for the tested fungi. Finally, the depolymerase enzyme was isolated, purified using column chromatography and characterized. In conclusion, PHB can be biodegraded in solid and liquid medium using depolymerase enzyme from T. asperellum. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=degradation" title="degradation">degradation</a>, <a href="https://publications.waset.org/abstracts/search?q=depolymerase%20enzyme" title=" depolymerase enzyme"> depolymerase enzyme</a>, <a href="https://publications.waset.org/abstracts/search?q=PHB" title=" PHB"> PHB</a>, <a href="https://publications.waset.org/abstracts/search?q=Trichoderma%20asperellum" title=" Trichoderma asperellum"> Trichoderma asperellum</a> </p> <a href="https://publications.waset.org/abstracts/107715/degradation-of-poly-v-hydroxybutyrate-by-trichoderma-asperellum" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/107715.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 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