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Hakem</title> <meta name="description" content="Search results for: Nadir Hakem"> <meta name="keywords" content="Nadir Hakem"> <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 ml-auto" 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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="Nadir Hakem"> <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> 32</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Nadir Hakem</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">32</span> Voice over IP Quality of Service Evaluation for Mobile Ad Hoc Network in an Indoor Environment for Different Voice Codecs</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Lina%20Abou%20Haibeh">Lina Abou Haibeh</a>, <a href="https://publications.waset.org/abstracts/search?q=Nadir%20Hakem"> Nadir Hakem</a>, <a href="https://publications.waset.org/abstracts/search?q=Ousama%20Abu%20Safia"> Ousama Abu Safia</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, the performance and quality of Voice over IP (VoIP) calls carried over a Mobile Ad Hoc Network (MANET) which has a number of SIP nodes registered on a SIP Proxy are analyzed. The testing campaigns are carried out in an indoor corridor structure having a well-defined channel’s characteristics and model for the different voice codecs, G.711, G.727 and G.723.1. These voice codecs are commonly used in VoIP technology. The calls’ quality are evaluated using four Quality of Service (QoS) metrics, namely, mean opinion score (MOS), jitter, delay, and packet loss. The relationship between the wireless channel’s parameters and the optimum codec is well-established. According to the experimental results, the voice codec G.711 has the best performance for the proposed MANET topology <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=wireless%20channel%20modelling" title="wireless channel modelling">wireless channel modelling</a>, <a href="https://publications.waset.org/abstracts/search?q=Voip" title=" Voip"> Voip</a>, <a href="https://publications.waset.org/abstracts/search?q=MANET" title=" MANET"> MANET</a>, <a href="https://publications.waset.org/abstracts/search?q=session%20initiation%20protocol%20%28SIP%29" title=" session initiation protocol (SIP)"> session initiation protocol (SIP)</a>, <a href="https://publications.waset.org/abstracts/search?q=QoS" title=" QoS"> QoS</a> </p> <a href="https://publications.waset.org/abstracts/74102/voice-over-ip-quality-of-service-evaluation-for-mobile-ad-hoc-network-in-an-indoor-environment-for-different-voice-codecs" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/74102.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">228</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> DNA Double-Strand Break–Capturing Nuclear Envelope Tubules Drive DNA Repair</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mitra%20Shokrollahi">Mitra Shokrollahi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mia%20Stanic"> Mia Stanic</a>, <a href="https://publications.waset.org/abstracts/search?q=Anisha%20Hundal"> Anisha Hundal</a>, <a href="https://publications.waset.org/abstracts/search?q=Janet%20N.%20Y.%20Chan"> Janet N. Y. Chan</a>, <a href="https://publications.waset.org/abstracts/search?q=Defne%20Urman"> Defne Urman</a>, <a href="https://publications.waset.org/abstracts/search?q=Chris%20A.%20Jordan"> Chris A. Jordan</a>, <a href="https://publications.waset.org/abstracts/search?q=Anne%20Hakem"> Anne Hakem</a>, <a href="https://publications.waset.org/abstracts/search?q=Roderic%20Espin"> Roderic Espin</a>, <a href="https://publications.waset.org/abstracts/search?q=Jun%20Hao"> Jun Hao</a>, <a href="https://publications.waset.org/abstracts/search?q=Rehna%20Krishnan"> Rehna Krishnan</a>, <a href="https://publications.waset.org/abstracts/search?q=Philipp%20G.%20Maass"> Philipp G. Maass</a>, <a href="https://publications.waset.org/abstracts/search?q=Brendan%20C.%20Dickson"> Brendan C. Dickson</a>, <a href="https://publications.waset.org/abstracts/search?q=Manoor%20P.%20Hande"> Manoor P. Hande</a>, <a href="https://publications.waset.org/abstracts/search?q=Miquel%20A.%20Pujana"> Miquel A. Pujana</a>, <a href="https://publications.waset.org/abstracts/search?q=Razqallah%20Hakem"> Razqallah Hakem</a>, <a href="https://publications.waset.org/abstracts/search?q=Karim%20Mekhail"> Karim Mekhail</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Current models suggest that DNA double-strand breaks (DSBs) can move to the nuclear periphery for repair. It is unclear to what extent human DSBs display such repositioning. Here we show that the human nuclear envelope localizes to DSBs in a manner depending on DNA damage response (DDR) kinases and cytoplasmic microtubules acetylated by α-tubulin acetyltransferase-1 (ATAT1). These factors collaborate with the linker of nucleoskeleton and cytoskeleton complex (LINC), nuclear pore complex (NPC) protein NUP153, the nuclear lamina and kinesins KIF5B and KIF13B to generate DSB-capturing nuclear envelope tubules (dsbNETs). dsbNETs are partly supported by nuclear actin filaments and the circadian factor PER1 and reversed by kinesin KIFC3. Although dsbNETs promote repair and survival, they are also co-opted during poly (ADP-ribose) polymerase (PARP) inhibition to restrain BRCA1-deficient breast cancer cells and are hyper-induced in cells expressing the aging-linked lamin A mutant progerin. In summary, our results advance understanding of nuclear structure-function relationships, uncover a nuclear-cytoplasmic DDR and identify dsbNETs as critical factors in genome organization and stability. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=DNA%20damage%20response" title="DNA damage response">DNA damage response</a>, <a href="https://publications.waset.org/abstracts/search?q=genome%20stability" title=" genome stability"> genome stability</a>, <a href="https://publications.waset.org/abstracts/search?q=nuclear%20envelope" title=" nuclear envelope"> nuclear envelope</a>, <a href="https://publications.waset.org/abstracts/search?q=cancer" title=" cancer"> cancer</a>, <a href="https://publications.waset.org/abstracts/search?q=age-related%20disorders" title=" age-related disorders"> age-related disorders</a> </p> <a href="https://publications.waset.org/abstracts/193774/dna-double-strand-break-capturing-nuclear-envelope-tubules-drive-dna-repair" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/193774.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">16</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> A New Protocol Ensuring Users' Privacy in Pervasive Environment</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohammed%20Nadir%20Djedid">Mohammed Nadir Djedid</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdallah%20Chouarfia"> Abdallah Chouarfia</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Transparency of the system and its integration into the natural environment of the user are some of the important features of pervasive computing. But these characteristics that are considered as the strongest points of pervasive systems are also their weak points in terms of the user’s privacy. The privacy in pervasive systems involves more than the confidentiality of communications and concealing the identity of virtual users. The physical presence and behavior of the user in the pervasive space cannot be completely hidden and can reveal the secret of his/her identity and affect his/her privacy. This paper shows that the application of major techniques for protecting the user’s privacy still insufficient. A new solution named Shadow Protocol is proposed, which allows the users to authenticate and interact with the surrounding devices within an ubiquitous computing environment while preserving their privacy. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=pervasive%20systems" title="pervasive systems">pervasive systems</a>, <a href="https://publications.waset.org/abstracts/search?q=identification" title=" identification"> identification</a>, <a href="https://publications.waset.org/abstracts/search?q=authentication" title=" authentication"> authentication</a>, <a href="https://publications.waset.org/abstracts/search?q=privacy" title=" privacy"> privacy</a> </p> <a href="https://publications.waset.org/abstracts/3114/a-new-protocol-ensuring-users-privacy-in-pervasive-environment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/3114.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">482</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> Improving Fire Resistance of Wood and Wood-Based Composites and Fire Testing Systems</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nadir%20Ayrilmis">Nadir Ayrilmis</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Wood and wood-based panels are one of the oldest structural materials used in the construction industry due to their significant advantages such as good mechanical properties, low density, renewable material, low-cost, recycling, etc. However, they burn when exposed to a flame source or high temperatures. This is very important when the wood products are used as structural or hemi-structural materials in the construction industry, furniture industry, so on. For this reason, the fire resistance is demanded property for wood products. They can be impregnated with fire retardants to improve their fire resistance. The most used fire retardants, fire-retardant mechanism, and fire-testing systems, and national and international fire-durability classifications and standard requirements for fire-durability of wood and wood-based panels were given in this study. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=fire%20resistance" title="fire resistance">fire resistance</a>, <a href="https://publications.waset.org/abstracts/search?q=wood-based%20panels" title=" wood-based panels"> wood-based panels</a>, <a href="https://publications.waset.org/abstracts/search?q=cone%20calorimeter" title=" cone calorimeter"> cone calorimeter</a>, <a href="https://publications.waset.org/abstracts/search?q=wood" title=" wood"> wood</a> </p> <a href="https://publications.waset.org/abstracts/130377/improving-fire-resistance-of-wood-and-wood-based-composites-and-fire-testing-systems" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/130377.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">165</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> Zinc Oxide Thin Films Deposition by Spray Pyrolysis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bourfaa%20Fouzia">Bourfaa Fouzia</a>, <a href="https://publications.waset.org/abstracts/search?q=Meryem%20Lamri%20Zeggar"> Meryem Lamri Zeggar</a>, <a href="https://publications.waset.org/abstracts/search?q=Adjimi%20Amel"> Adjimi Amel</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammed%20Salah%20Aida"> Mohammed Salah Aida</a>, <a href="https://publications.waset.org/abstracts/search?q=Nadir%20Attaf"> Nadir Attaf</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Semiconductor photocatalysts such as ZnO has attracted much attention in recent years due to their various applications for the degradation of organic pollutants in water, air and in dye sensitized photovoltaic solar cell. In the present work, ZnO thin films were prepared by ultrasonic spray pyrolysis by using different precursors namely: Acetate, chloride and zinc nitrate in order to investigate their influence on ZnO photocatalytic activity. The films crystalline structure was studied by mean of X-ray diffraction measurements (XRD) and the films surface morphology by Scanning Electron Microscopy (SEM). The films optical properties were studied by mean of UV–visible spectroscopy. The prepared films were tested for the degradation of the red reactive dye largely used in textile industry. As a result, we found that the zinc nitrate is the best precursor to prepare ZnO thin films suitable for a good photocatalytic activity. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=precursor" title="precursor">precursor</a>, <a href="https://publications.waset.org/abstracts/search?q=thins%20films" title=" thins films"> thins films</a>, <a href="https://publications.waset.org/abstracts/search?q=spray%20pyrolysis" title=" spray pyrolysis"> spray pyrolysis</a>, <a href="https://publications.waset.org/abstracts/search?q=zinc%20oxide" title=" zinc oxide"> zinc oxide</a> </p> <a href="https://publications.waset.org/abstracts/36904/zinc-oxide-thin-films-deposition-by-spray-pyrolysis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/36904.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">327</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> Synthesis and Spectrophotometric Study of Omeprazole Charge Transfer Complexes with Bromothymol Blue, Methyl Orange, and Picric Acid</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Saeeda%20Nadir%20Ali">Saeeda Nadir Ali</a>, <a href="https://publications.waset.org/abstracts/search?q=Najma%20Sultana"> Najma Sultana</a>, <a href="https://publications.waset.org/abstracts/search?q=Muhammad%20Saeed%20Arayne"> Muhammad Saeed Arayne</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Charge transfer complexes of omeprazole with bromothymol blue, methyl orange, and picric acid in the Beer’s law ranges 7-56, 6-48, and 10-80 µg mL-1, exhibiting stoichiometric ratio 1:1, and maximum wavelength 400, 420 and 373 nm respectively have been studied in aqueous medium. ICH guidelines were followed for validation study. Spectroscopic parameters including oscillator’s strength, dipole moment, ionization potential, energy of complexes, resonance energy, association constant and Gibb’s free energy changes have also been investigated and Benesi-Hildebrand plot in each case has been obtained. In addition, the methods were fruitfully employed for omeprazole determination in pharmaceutical formulations with no excipients obstruction during analysis. Solid omeprazole complexes with all the acceptors were synthesized and then structure was elucidated by IR and 1H NMR spectroscopy. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=omeprazole" title="omeprazole">omeprazole</a>, <a href="https://publications.waset.org/abstracts/search?q=bromothymol%20blue" title=" bromothymol blue"> bromothymol blue</a>, <a href="https://publications.waset.org/abstracts/search?q=methyl%20orange%20and%20picric%20acid" title=" methyl orange and picric acid"> methyl orange and picric acid</a>, <a href="https://publications.waset.org/abstracts/search?q=charge%20transfer%20complexes" title=" charge transfer complexes"> charge transfer complexes</a> </p> <a href="https://publications.waset.org/abstracts/21749/synthesis-and-spectrophotometric-study-of-omeprazole-charge-transfer-complexes-with-bromothymol-blue-methyl-orange-and-picric-acid" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/21749.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">540</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> Exploring the Representations of the Moroccan Female Body on Social Media: YouTube as a Case Study</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nadir%20Akrachi">Nadir Akrachi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> YouTube is one of the social media platforms that has gained popularity over the last decade. With the use of YouTube channels, young girls are able to post videos about their opinions of the ideal body and beauty and connect to their audience through likes, comments, and shares. In addition, it has become apparent that these young women associate their bodies with the ideal body image. They relate their body to the ideal body aspects that are produced by YouTubers, which causes differences between their body shape and the ideal body. Thus, this has led many researchers to explore whether these social media outlets are influencing the ways women look at their bodies and whether these social media associations cause a negative body image. The purpose of the study is to examine body image perceptions of Moroccan YouTubers. In other words, the study will explore the ways Moroccan YouTubers perceive their body and whether they follow a pattern of objectification or not. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=body%20image" title="body image">body image</a>, <a href="https://publications.waset.org/abstracts/search?q=gender" title=" gender"> gender</a>, <a href="https://publications.waset.org/abstracts/search?q=social%20media" title=" social media"> social media</a>, <a href="https://publications.waset.org/abstracts/search?q=representation" title=" representation"> representation</a>, <a href="https://publications.waset.org/abstracts/search?q=female%20body" title=" female body"> female body</a> </p> <a href="https://publications.waset.org/abstracts/193128/exploring-the-representations-of-the-moroccan-female-body-on-social-media-youtube-as-a-case-study" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/193128.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">16</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> Liquid Chromatographic Determination of Alprazolam with ACE Inhibitors in Bulk, Respective Pharmaceutical Products and Human Serum</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Saeeda%20Nadir%20Ali">Saeeda Nadir Ali</a>, <a href="https://publications.waset.org/abstracts/search?q=Najma%20Sultana"> Najma Sultana</a>, <a href="https://publications.waset.org/abstracts/search?q=Muhammad%20Saeed%20Arayne"> Muhammad Saeed Arayne</a>, <a href="https://publications.waset.org/abstracts/search?q=Amtul%20Qayoom"> Amtul Qayoom</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Present study describes a simple and a fast liquid chromatographic method using ultraviolet detector for simultaneous determination of anxiety relief medicine alprazolam with ACE inhibitors i.e; lisinopril, captopril and enalapril employing purospher star C18 (25 cm, 0.46 cm, 5 µm). Separation was achieved within 5 min at ambient temperature via methanol: water (8:2 v/v) with pH adjusted to 2.9, monitoring the detector response at 220 nm. Optimum parameters were set up as per ICH (2006) guidelines. Calibration range was found out to be 0.312-10 µg mL-1 for alprazolam and 0.625-20 µg mL-1 for all the ACE inhibitors with correlation coefficients > 0.998 and detection limits 85, 37, 68 and 32 ng mL-1 for lisinopril, captopril, enalapril and alprazolam respectively. Intra-day, inter-day precision and accuracy of the assay were in acceptable range of 0.05-1.62% RSD and 98.85-100.76% recovery. Method was determined to be robust and effectively useful for the estimation of studied drugs in dosage formulations and human serum without obstruction of excipients or serum components. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=alprazolam" title="alprazolam">alprazolam</a>, <a href="https://publications.waset.org/abstracts/search?q=ACE%20inhibitors" title=" ACE inhibitors"> ACE inhibitors</a>, <a href="https://publications.waset.org/abstracts/search?q=RP%20HPLC" title=" RP HPLC"> RP HPLC</a>, <a href="https://publications.waset.org/abstracts/search?q=serum" title=" serum"> serum</a> </p> <a href="https://publications.waset.org/abstracts/34837/liquid-chromatographic-determination-of-alprazolam-with-ace-inhibitors-in-bulk-respective-pharmaceutical-products-and-human-serum" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/34837.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">514</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> Long Short-Time Memory Neural Networks for Human Driving Behavior Modelling</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Lu%20Zhao">Lu Zhao</a>, <a href="https://publications.waset.org/abstracts/search?q=Nadir%20Farhi"> Nadir Farhi</a>, <a href="https://publications.waset.org/abstracts/search?q=Yeltsin%20Valero"> Yeltsin Valero</a>, <a href="https://publications.waset.org/abstracts/search?q=Zoi%20Christoforou"> Zoi Christoforou</a>, <a href="https://publications.waset.org/abstracts/search?q=Nadia%20Haddadou"> Nadia Haddadou</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, a long short-term memory (LSTM) neural network model is proposed to replicate simultaneously car-following and lane-changing behaviors in road networks. By combining two kinds of LSTM layers and three input designs of the neural network, six variants of the LSTM model have been created. These models were trained and tested on the NGSIM 101 dataset, and the results were evaluated in terms of longitudinal speed and lateral position, respectively. Then, we compared the LSTM model with a classical car-following model (the intelligent driving model (IDM)) in the part of speed decision. In addition, the LSTM model is compared with a model using classical neural networks. After the comparison, the LSTM model demonstrates higher accuracy than the physical model IDM in terms of car-following behavior and displays better performance with regard to both car-following and lane-changing behavior compared to the classical neural network model. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=traffic%20modeling" title="traffic modeling">traffic modeling</a>, <a href="https://publications.waset.org/abstracts/search?q=neural%20networks" title=" neural networks"> neural networks</a>, <a href="https://publications.waset.org/abstracts/search?q=LSTM" title=" LSTM"> LSTM</a>, <a href="https://publications.waset.org/abstracts/search?q=car-following" title=" car-following"> car-following</a>, <a href="https://publications.waset.org/abstracts/search?q=lane-change" title=" lane-change"> lane-change</a> </p> <a href="https://publications.waset.org/abstracts/139730/long-short-time-memory-neural-networks-for-human-driving-behavior-modelling" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/139730.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">261</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> Amplified Ribosomal DNA Restriction Analysis Method to Assess Rumen Microbial Diversity of Ruminant</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20Natsir">A. Natsir</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Nadir"> M. Nadir</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Syahrir"> S. Syahrir</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Mujnisa"> A. Mujnisa</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20Purnomo"> N. Purnomo</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20R.%20Egan"> A. R. Egan</a>, <a href="https://publications.waset.org/abstracts/search?q=B.%20J.%20Leury"> B. J. Leury</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Rumen degradation characteristic of feedstuff is one of the prominent factors affecting microbial population in rumen of animal. High rumen degradation rate of faba bean protein may lead to inconstant rumen conditions that could have a prominent impact on rumen microbial diversity. Amplified Ribosomal DNA Restriction Analysis (ARDRA) is utilized to monitor diversity of rumen microbes on sheep fed low quality forage supplemented by faba beans. Four mature merino sheep with existing rumen cannula were used in this study according to 4 x 4 Latin square design. The results of study indicated that there were 37 different ARDRA types identified out of 136 clones examined. Among those clones, five main clone types existed across the treatments with different percentages. In conclusion, the ARDRA method is potential to be used as a routine tool to assess the temporary changes in the rumen community as a result of different feeding strategies. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ARDRA%20method" title="ARDRA method">ARDRA method</a>, <a href="https://publications.waset.org/abstracts/search?q=cattle" title=" cattle"> cattle</a>, <a href="https://publications.waset.org/abstracts/search?q=genomic%20diversity" title=" genomic diversity"> genomic diversity</a>, <a href="https://publications.waset.org/abstracts/search?q=rumen%20microbes" title=" rumen microbes"> rumen microbes</a> </p> <a href="https://publications.waset.org/abstracts/55076/amplified-ribosomal-dna-restriction-analysis-method-to-assess-rumen-microbial-diversity-of-ruminant" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/55076.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">361</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> Anti-Cancerous Activity of Sargassum siliquastrum in Cervical Cancer: Choreographing the Fly's Danse Macabre</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sana%20Abbasa">Sana Abbasa</a>, <a href="https://publications.waset.org/abstracts/search?q=Shahzad%20Bhattiab"> Shahzad Bhattiab</a>, <a href="https://publications.waset.org/abstracts/search?q=Nadir%20Khan"> Nadir Khan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Sargassum siliquastrum is brown seaweed with traditional claims for some medicinal properties. This research was done to investigate the methanol extract of S. siliquastrum for antiproliferative activity against human cervical cancer cell line, HeLa and its mode of cell death. From methylene blue assay, S. siliquastrum exhibited antiproliferative activity on HeLa cells with IC50 of 3.87 µg/ml without affecting non-malignant cells. Phase contrast microscopy indicated the confluency reduction in HeLa cells and changes on the cell shape. Nuclear staining with Hoechst 33258 displayed the formation of apoptotic bodies and fragmented nuclei. S. siliquastrum also induced early apoptosis event in HeLa cells as confirmed by FITC-Annexin V/propidium iodide staining by flow cytometry analysis. Cell cycle analysis indicated growth arrest of HeLa cells at G1/S phase. Protein study by flow cytometry indicated the increment of p53, slight increase of Bax and unchanged level of Bcl-2. In conclusion, S. siliquastrum demonstrated an antiproliferative activity in HeLa cell by inducing G1/S cell cycle arrest via p53-mediated pathway. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=sargassum%20siliquastrum" title="sargassum siliquastrum">sargassum siliquastrum</a>, <a href="https://publications.waset.org/abstracts/search?q=cervical%20cancer" title=" cervical cancer"> cervical cancer</a>, <a href="https://publications.waset.org/abstracts/search?q=P53" title=" P53"> P53</a>, <a href="https://publications.waset.org/abstracts/search?q=antiproleferation" title=" antiproleferation"> antiproleferation</a> </p> <a href="https://publications.waset.org/abstracts/21519/anti-cancerous-activity-of-sargassum-siliquastrum-in-cervical-cancer-choreographing-the-flys-danse-macabre" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/21519.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">631</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> Driver Behavior Analysis and Inter-Vehicular Collision Simulation Approach</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Lu%20Zhao">Lu Zhao</a>, <a href="https://publications.waset.org/abstracts/search?q=Nadir%20Farhi"> Nadir Farhi</a>, <a href="https://publications.waset.org/abstracts/search?q=Zoi%20Christoforou"> Zoi Christoforou</a>, <a href="https://publications.waset.org/abstracts/search?q=Nadia%20Haddadou"> Nadia Haddadou</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The safety test of deploying intelligent connected vehicles (ICVs) on the road network is a critical challenge. Road traffic network simulation can be used to test the functionality of ICVs, which is not only time-saving and less energy-consuming but also can create scenarios with car collisions. However, the relationship between different human driver behaviors and the car-collision occurrences has been not understood clearly; meanwhile, the procedure of car-collisions generation in the traffic numerical simulators is not fully integrated. In this paper, we propose an approach to identify specific driver profiles from real driven data; then, we replicate them in numerical traffic simulations with the purpose of generating inter-vehicular collisions. We proposed three profiles: (i) 'aggressive': short time-headway, (ii) 'inattentive': long reaction time, and (iii) 'normal' with intermediate values of reaction time and time-headway. These three driver profiles are extracted from the NGSIM dataset and simulated using the intelligent driver model (IDM), with an extension of reaction time. At last, the generation of inter-vehicular collisions is performed by varying the percentages of different profiles. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=vehicular%20collisions" title="vehicular collisions">vehicular collisions</a>, <a href="https://publications.waset.org/abstracts/search?q=human%20driving%20behavior" title=" human driving behavior"> human driving behavior</a>, <a href="https://publications.waset.org/abstracts/search?q=traffic%20modeling" title=" traffic modeling"> traffic modeling</a>, <a href="https://publications.waset.org/abstracts/search?q=car-following%20models" title=" car-following models"> car-following models</a>, <a href="https://publications.waset.org/abstracts/search?q=microscopic%20traffic%20simulation" title=" microscopic traffic simulation"> microscopic traffic simulation</a> </p> <a href="https://publications.waset.org/abstracts/139723/driver-behavior-analysis-and-inter-vehicular-collision-simulation-approach" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/139723.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">171</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> Biodiversity Conservation: A Path to a Healthy Afghanistan</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nadir%20Sidiqi">Nadir Sidiqi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Biodiversity conservation is humanity’s building block to sustain lives - ultimately allowing all living and nonliving creatures to interact in a balanced proportion. Humanity’s challenge in the 21st century is to maintain biodiversity without harming the natural habitat of plants, animals and beneficial microorganisms. There are many good reasons to consider why biodiversity is important to every nation around the world, especially for a nation like Afghanistan. One of the major values of biodiversity is its economic value: biodiversity provides goods and services to the Afghan nation directly through links and components such as the maintenance of traditional crops, medicine, fruits, animals, grazing, fuel, timber, harvesting, fishing, hunting and related supplies. Biodiversity is the variety of the living components, such as humans, plants, animals, and microorganisms, and nonliving components interaction, including air, water, sunlight, soil, humidity and environmental factors in an area. There are many ways of gauging the value of biodiversity. As an ecosystem, biodiversity includes such benefits as soil fertility, erosion control, crop pollination, crop rotation, and pest control. The conservation of biodiversity is crucial for these benefits, which would be impossible to replace. Biodiversity conservation also has heritage values; this wealth of genetic diversity provides backup to rural people living close together. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Afghanistan" title="Afghanistan">Afghanistan</a>, <a href="https://publications.waset.org/abstracts/search?q=biodiversity" title=" biodiversity"> biodiversity</a>, <a href="https://publications.waset.org/abstracts/search?q=conservation" title=" conservation"> conservation</a>, <a href="https://publications.waset.org/abstracts/search?q=economy" title=" economy"> economy</a>, <a href="https://publications.waset.org/abstracts/search?q=environment" title=" environment "> environment </a> </p> <a href="https://publications.waset.org/abstracts/18750/biodiversity-conservation-a-path-to-a-healthy-afghanistan" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/18750.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">528</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> Investigating Teachers’ Perceptions about the Use of Technology in Second Language Learning at Universities in Pakistan</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nadir%20Ali%20Mugheri">Nadir Ali Mugheri</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study has explored the perceptions of English language teachers (ELT) regarding use of technology in learning English as a second language (L2) at Universities in Pakistan. In this regard, 200 ELT teachers from 80 leading universities were selected through a judgmental sampling method. Results established that most of the teachers supported integration and incorporation of technology in the language classroom so as to teach L2 in an effective and efficient way. This study unearthed that the teachers termed the use of technology in learning English as a second language (ESL) as a positive step towards enhancing the learning capabilities and improving the personal traits of the students or learners. Findings suggest that the integration of technology in the language learning makes the learners within the classroom active and enthusiastic, and the teachers need to be equipped with the latest knowledge of mobile assisted language learning (MALL) and computer assisted language learning (CALL) so that they may ensure use of this innovative technology in their teaching practices. Results also indicated that the technology has proved itself a stimulus for improving language in the ELT milieu. The use of technology helps teachers develop themselves professionally. This study discovered that there are many determinants that make teaching and learning within the classroom efficacious, while the use of technology is one of them. Data was collected through qualitative design in order to get a complete depiction. Semi-structured interviews were conducted and analyzed through thematic analysis. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=english%20language%20teaching" title="english language teaching">english language teaching</a>, <a href="https://publications.waset.org/abstracts/search?q=computer%20assisted%20language%20learning" title=" computer assisted language learning"> computer assisted language learning</a>, <a href="https://publications.waset.org/abstracts/search?q=use%20of%20technology" title=" use of technology"> use of technology</a>, <a href="https://publications.waset.org/abstracts/search?q=thematic%20analysis" title=" thematic analysis"> thematic analysis</a> </p> <a href="https://publications.waset.org/abstracts/171073/investigating-teachers-perceptions-about-the-use-of-technology-in-second-language-learning-at-universities-in-pakistan" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/171073.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">69</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> Thermodynamic Modeling of Three Pressure Level Reheat HRSG, Parametric Analysis and Optimization Using PSO</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mahmoud%20Nadir">Mahmoud Nadir</a>, <a href="https://publications.waset.org/abstracts/search?q=Adel%20Ghenaiet"> Adel Ghenaiet</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The main purpose of this study is the thermodynamic modeling, the parametric analysis, and the optimization of three pressure level reheat HRSG (Heat Recovery Steam Generator) using PSO method (Particle Swarm Optimization). In this paper, a parametric analysis followed by a thermodynamic optimization is presented. The chosen objective function is the specific work of the steam cycle that may be, in the case of combined cycle (CC), a good criterion of thermodynamic performance analysis, contrary to the conventional steam turbines in which the thermal efficiency could be also an important criterion. The technologic constraints such as maximal steam cycle temperature, minimal steam fraction at steam turbine outlet, maximal steam pressure, minimal stack temperature, minimal pinch point, and maximal superheater effectiveness are also considered. The parametric analyses permitted to understand the effect of design parameters and the constraints on steam cycle specific work variation. PSO algorithm was used successfully in HRSG optimization, knowing that the achieved results are in accordance with those of the previous studies in which genetic algorithms were used. Moreover, this method is easy to implement comparing with the other methods. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=combined%20cycle" title="combined cycle">combined cycle</a>, <a href="https://publications.waset.org/abstracts/search?q=HRSG%20thermodynamic%20modeling" title=" HRSG thermodynamic modeling"> HRSG thermodynamic modeling</a>, <a href="https://publications.waset.org/abstracts/search?q=optimization" title=" optimization"> optimization</a>, <a href="https://publications.waset.org/abstracts/search?q=PSO" title=" PSO"> PSO</a>, <a href="https://publications.waset.org/abstracts/search?q=steam%20cycle%20specific%20work" title=" steam cycle specific work"> steam cycle specific work</a> </p> <a href="https://publications.waset.org/abstracts/38513/thermodynamic-modeling-of-three-pressure-level-reheat-hrsg-parametric-analysis-and-optimization-using-pso" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/38513.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">382</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">17</span> System for the Detecting of Fake Profiles on Online Social Networks Using Machine Learning and the Bio-Inspired Algorithms</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sekkal%20Nawel">Sekkal Nawel</a>, <a href="https://publications.waset.org/abstracts/search?q=Mahammed%20Nadir"> Mahammed Nadir</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The proliferation of online activities on Online Social Networks (OSNs) has captured significant user attention. However, this growth has been hindered by the emergence of fraudulent accounts that do not represent real individuals and violate privacy regulations within social network communities. Consequently, it is imperative to identify and remove these profiles to enhance the security of OSN users. In recent years, researchers have turned to machine learning (ML) to develop strategies and methods to tackle this issue. Numerous studies have been conducted in this field to compare various ML-based techniques. However, the existing literature still lacks a comprehensive examination, especially considering different OSN platforms. Additionally, the utilization of bio-inspired algorithms has been largely overlooked. Our study conducts an extensive comparison analysis of various fake profile detection techniques in online social networks. The results of our study indicate that supervised models, along with other machine learning techniques, as well as unsupervised models, are effective for detecting false profiles in social media. To achieve optimal results, we have incorporated six bio-inspired algorithms to enhance the performance of fake profile identification results. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=machine%20learning" title="machine learning">machine learning</a>, <a href="https://publications.waset.org/abstracts/search?q=bio-inspired%20algorithm" title=" bio-inspired algorithm"> bio-inspired algorithm</a>, <a href="https://publications.waset.org/abstracts/search?q=detection" title=" detection"> detection</a>, <a href="https://publications.waset.org/abstracts/search?q=fake%20profile" title=" fake profile"> fake profile</a>, <a href="https://publications.waset.org/abstracts/search?q=system" title=" system"> system</a>, <a href="https://publications.waset.org/abstracts/search?q=social%20network" title=" social network"> social network</a> </p> <a href="https://publications.waset.org/abstracts/174178/system-for-the-detecting-of-fake-profiles-on-online-social-networks-using-machine-learning-and-the-bio-inspired-algorithms" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/174178.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">67</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> Roles of Lysine-63-Linked Ubiquitination in Cell Decision Fate between Cell Proliferation and Apoptosis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chargui%20Abderrahman">Chargui Abderrahman</a>, <a href="https://publications.waset.org/abstracts/search?q=Nehdi%20%20Afef"> Nehdi Afef </a>, <a href="https://publications.waset.org/abstracts/search?q=Bela%C3%AFD%20%20Amine"> BelaïD Amine </a>, <a href="https://publications.waset.org/abstracts/search?q=Djerbi%20%20Nadir"> Djerbi Nadir</a>, <a href="https://publications.waset.org/abstracts/search?q=Tauc%20%20Michel"> Tauc Michel</a>, <a href="https://publications.waset.org/abstracts/search?q=Hofman%20Paul"> Hofman Paul</a>, <a href="https://publications.waset.org/abstracts/search?q=Mograbi%20%20Baharia"> Mograbi Baharia</a>, <a href="https://publications.waset.org/abstracts/search?q=El%20May%20%20Mich%C3%A8Le"> El May MichèLe </a> </p> <p class="card-text"><strong>Abstract:</strong></p> K63-linked ubiquitination — i.e. conjugation of a chain of ubiquitins (Ub) linked through lys63 — has emerged as a key mechanism regulating signalling transduction pathways. Although critical, very little information is currently available about how subversion of K63 ubiquitination might contribute to cancers and inflammatory diseases. The present study provides the first evidence that Cadmium (Cd), a widespread environmental carcinogen and toxicant, is a powerful activator of K63 ubiquitination. Indeed, Cd induces accumulation of K63 polyUb proteins. Importantly, Cd-induced ubiquitination does not stem on oxidative damage or proteasome impairment. Rather, we demonstrate that Cd not only activates K63 ubiquitination but also amplifies their accumulation by overloading the capacity of autophagy pathway. At molecular level, Cd-induced ubiquitination is correlated with stabilization of HIF-1 and the activation of NF-B, two transcription factors. Strikingly, prolonged cell exposure to high Cd concentrations induces an exaggerated K63 ubiquitination that fosters aggresome formation, thus precluding these proteins from interacting with their downstream nuclear targets. We therefore propose that the aberrant activation of K63 ubiquitination by the carcinogen Cadmium could promote cell proliferation and inflammation at low levels while high levels committed cell to death. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cadmium" title="cadmium">cadmium</a>, <a href="https://publications.waset.org/abstracts/search?q=environmental%20exposure" title=" environmental exposure"> environmental exposure</a>, <a href="https://publications.waset.org/abstracts/search?q=Lysine-63-ubiquitination" title=" Lysine-63-ubiquitination"> Lysine-63-ubiquitination</a>, <a href="https://publications.waset.org/abstracts/search?q=kidney" title=" kidney"> kidney</a>, <a href="https://publications.waset.org/abstracts/search?q=apoptosis" title=" apoptosis"> apoptosis</a>, <a href="https://publications.waset.org/abstracts/search?q=proliferation" title=" proliferation"> proliferation</a>, <a href="https://publications.waset.org/abstracts/search?q=autophagy" title=" autophagy"> autophagy</a> </p> <a href="https://publications.waset.org/abstracts/138910/roles-of-lysine-63-linked-ubiquitination-in-cell-decision-fate-between-cell-proliferation-and-apoptosis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/138910.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">209</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">15</span> A High Efficiency Reduced Rules Neuro-Fuzzy Based Maximum Power Point Tracking Controller for Photovoltaic Array Connected to Grid</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Lotfi%20Farah">Lotfi Farah</a>, <a href="https://publications.waset.org/abstracts/search?q=Nadir%20Farah"> Nadir Farah</a>, <a href="https://publications.waset.org/abstracts/search?q=Zaiem%20Kamar"> Zaiem Kamar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper achieves a maximum power point tracking (MPPT) controller using a high-efficiency reduced rules neuro-fuzzy inference system (HE2RNF) for a 100 kW stand-alone photovoltaic (PV) system connected to the grid. The suggested HE2RNF based MPPT seeks the optimal duty cycle for the boost DC-DC converter, making the designed PV system working at the maximum power point (MPP), then transferring this power to the grid via a three levels voltage source converter (VSC). PV current variation and voltage variation are chosen as HE2RNF-based MPPT controller inputs. By using these inputs with the duty cycle as the only single output, a six rules ANFIS is generated. The high performance of the proposed HE2RNF numerically in the MATLAB/Simulink environment is shown. The 0.006% steady-state error, 0.006s of tracking time, and 0.088s of starting time prove the robustness of this six reduced rules against the widely used twenty-five ones. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=PV" title="PV">PV</a>, <a href="https://publications.waset.org/abstracts/search?q=MPPT" title=" MPPT"> MPPT</a>, <a href="https://publications.waset.org/abstracts/search?q=ANFIS" title=" ANFIS"> ANFIS</a>, <a href="https://publications.waset.org/abstracts/search?q=HE2RNF-based%20MPPT%20controller" title=" HE2RNF-based MPPT controller"> HE2RNF-based MPPT controller</a>, <a href="https://publications.waset.org/abstracts/search?q=VSC" title=" VSC"> VSC</a>, <a href="https://publications.waset.org/abstracts/search?q=grid%20connection" title=" grid connection"> grid connection</a> </p> <a href="https://publications.waset.org/abstracts/136448/a-high-efficiency-reduced-rules-neuro-fuzzy-based-maximum-power-point-tracking-controller-for-photovoltaic-array-connected-to-grid" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/136448.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">183</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> Evaluation of Genetic Diversity Through RAPD Markers Among Melia azedarach L (Chinabery)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nadir%20Ali%20Rind">Nadir Ali Rind</a>, <a href="https://publications.waset.org/abstracts/search?q=%C3%96zlem%20Aksoy"> Özlem Aksoy</a>, <a href="https://publications.waset.org/abstracts/search?q=Muhammad%20Umar%20Dahot"> Muhammad Umar Dahot</a>, <a href="https://publications.waset.org/abstracts/search?q=Salih%20Dikilita%C5%9F"> Salih Dikilitaş</a>, <a href="https://publications.waset.org/abstracts/search?q=Muhammad%20Rafiq"> Muhammad Rafiq</a>, <a href="https://publications.waset.org/abstracts/search?q=Bur%C3%A7ak%20T%C3%BCt%C3%BCno%C4%9Flu"> Burçak Tütünoğlu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Melia azedarach L. is freshly fruited small to medium sized tree native to China and North western India. It is growing in Pakistan and Turkey in various areas facing great environmental changes to maintain its survival. The species is valued for its high quality wood, medicinal, ornamental and shade purposes. The present work was aimed to estimate the genetic variation among the populations of Melia azedarach L. leaf samples that were collected from five different locations of Turkey and three different areas of Pakistan. These populations were chosen on the random bases by applying RAPD primers in order to construct a dendogram using UPGMA method to show genetic diversity. After that appropriate conservation strategies were suggested. 14 primers producing polymorphic and monomorphic bands were analyzed. Genetic distances were calculated for all the species studied by RAPD-PCR methods. According to the results the lowest genetic identity values and the highest genetic polymorphic values were determined. It is observed that there was a clear split among populations from different areas in Turkey and Pakistan. These differences may be due to eco-geographical association with genetic variation and should be conserved to retain the genetic variation of the species. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=melia%20azedarach%20L." title="melia azedarach L.">melia azedarach L.</a>, <a href="https://publications.waset.org/abstracts/search?q=genetic%20diversity" title=" genetic diversity"> genetic diversity</a>, <a href="https://publications.waset.org/abstracts/search?q=conservation" title=" conservation"> conservation</a>, <a href="https://publications.waset.org/abstracts/search?q=RAPD-PCR" title=" RAPD-PCR"> RAPD-PCR</a>, <a href="https://publications.waset.org/abstracts/search?q=medicinal%20plant" title=" medicinal plant"> medicinal plant</a> </p> <a href="https://publications.waset.org/abstracts/37059/evaluation-of-genetic-diversity-through-rapd-markers-among-melia-azedarach-l-chinabery" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/37059.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">465</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> Non Destructive Ultrasound Testing for the Determination of Elastic Characteristics of AlSi7Zn3Cu2Mg Foundry Alloy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20Hakem">A. Hakem</a>, <a href="https://publications.waset.org/abstracts/search?q=Y.%20Bouafia"> Y. Bouafia</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Characterization of materials used for various mechanical components is of great importance in their design. Several studies were conducted by various authors in order to improve their physical and/or chemical properties in general and mechanical or metallurgical properties in particular. The foundry alloy AlSi7Zn3Cu2Mg is one of the main components constituting the various mechanisms for the implementation of applications and various industrial projects. Obtaining a reliable product is not an easy task; several results proposed by different authors show sometimes results that can contradictory. Due to their high mechanical characteristics, these alloys are widely used in engineering. Silicon improves casting properties and magnesium allows heat treatment. It is thus possible to obtain various degrees of hardening and therefore interesting compromise between tensile strength and yield strength, on one hand, and elongation, on the other hand. These mechanical characteristics can be further enhanced by a series of mechanical treatments or heat treatments. Their light weight coupled with high mechanical characteristics, aluminum alloys are very much used in cars and aircraft industry. The present study is focused on the influence of heat treatments which cause significant micro structural changes, usually hardening by variation of annealing temperatures by increments of 10°C and 20°C on the evolution of the main elastic characteristics, the resistance, the ductility and the structural characteristics of AlSi7Zn3Cu2Mg foundry alloy cast in sand by gravity. These elastic properties are determined in three directions for each specimen of dimensions 200x150x20 mm³ by the ultrasonic method based on acoustic or elastic waves. The hardness, the micro hardness and the structural characteristics are evaluated by a non-destructive method. The aim of this work is to study the hardening ability of AlSi7Zn3Cu2Mg alloy by considering ten states. To improve the mechanical properties obtained with the raw casting, one should use heat treatment for structural hardening; the addition of magnesium is necessary to increase the sensitivity to this specific heat treatment: Treatment followed by homogenization which generates a diffusion of atoms in a substitution solid solution inside a hardening furnace at 500°C during 8h, followed immediately by quenching in water at room temperature 20 to 25°C, then an ageing process for 17h at room temperature and at different annealing temperature (150, 160, 170, 180, 190, 240, 200, 220 and 240°C) for 20h in an annealing oven. The specimens were allowed to cool inside the oven. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=aluminum" title="aluminum">aluminum</a>, <a href="https://publications.waset.org/abstracts/search?q=foundry%20alloy" title=" foundry alloy"> foundry alloy</a>, <a href="https://publications.waset.org/abstracts/search?q=magnesium" title=" magnesium"> magnesium</a>, <a href="https://publications.waset.org/abstracts/search?q=mechanical%20characteristics" title=" mechanical characteristics"> mechanical characteristics</a>, <a href="https://publications.waset.org/abstracts/search?q=silicon" title=" silicon"> silicon</a> </p> <a href="https://publications.waset.org/abstracts/49075/non-destructive-ultrasound-testing-for-the-determination-of-elastic-characteristics-of-alsi7zn3cu2mg-foundry-alloy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/49075.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">264</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> An Analysis of L1 Effects on the Learning of EFL: A Case Study of Undergraduate EFL Learners at Universities in Pakistan</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nadir%20Ali%20Mugheri">Nadir Ali Mugheri</a>, <a href="https://publications.waset.org/abstracts/search?q=Shaukat%20Ali%20Lohar"> Shaukat Ali Lohar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In a multilingual society like Pakistan, code switching is commonly observed in different contexts. Mostly people use L1 (Native Languages) and L2 for common communications and L3 (i.e. English, Urdu, Sindhi) in formal contexts and for academic writings. Such a frequent code switching does affect EFL learners' acquisition of grammar and lexis of the target language which in the long run result in different types of errors in their writings. The current study is to investigate and identify common elements of L1 and L2 (spoken by students of the Universities in Pakistan) which create hindrances for EFL learners. Case study method was used for this research. Formal writings of 400 EFL learners (as participants from various Universities of the country) were observed. Among 400 participants, 200 were female and 200 were male EFL learners having different academic backgrounds. Errors found were categorized into different types according to grammatical items, the difference in meanings, structure of sentences and identifiers of tenses of L1 or L2 in comparison with those of the target language. The findings showed that EFL learners in Pakistani varsities have serious problems in their writings and they committed serious errors related to the grammar and meanings of the target language. After analysis of the committed errors, the results were found in the affirmation of the hypothesis that L1 or L2 does affect EFL learners. The research suggests in the end to adopt natural ways in pedagogy like task-based learning or communicative methods using contextualized material so as to avoid impediments of L1 or L2 in acquisition the target language. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=multilingualism" title="multilingualism">multilingualism</a>, <a href="https://publications.waset.org/abstracts/search?q=L2%20acquisition" title=" L2 acquisition"> L2 acquisition</a>, <a href="https://publications.waset.org/abstracts/search?q=code%20switching" title=" code switching"> code switching</a>, <a href="https://publications.waset.org/abstracts/search?q=language%20acquisition" title=" language acquisition"> language acquisition</a>, <a href="https://publications.waset.org/abstracts/search?q=communicative%20language%20teaching" title=" communicative language teaching "> communicative language teaching </a> </p> <a href="https://publications.waset.org/abstracts/47420/an-analysis-of-l1-effects-on-the-learning-of-efl-a-case-study-of-undergraduate-efl-learners-at-universities-in-pakistan" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/47420.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">290</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">11</span> A Medical Vulnerability Scoring System Incorporating Health and Data Sensitivity Metrics</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nadir%20A.%20Carreon">Nadir A. Carreon</a>, <a href="https://publications.waset.org/abstracts/search?q=Christa%20Sonderer"> Christa Sonderer</a>, <a href="https://publications.waset.org/abstracts/search?q=Aakarsh%20Rao"> Aakarsh Rao</a>, <a href="https://publications.waset.org/abstracts/search?q=Roman%20Lysecky"> Roman Lysecky</a> </p> <p class="card-text"><strong>Abstract:</strong></p> With the advent of complex software and increased connectivity, the security of life-critical medical devices is becoming an increasing concern, particularly with their direct impact on human safety. Security is essential, but it is impossible to develop completely secure and impenetrable systems at design time. Therefore, it is important to assess the potential impact on the security and safety of exploiting a vulnerability in such critical medical systems. The common vulnerability scoring system (CVSS) calculates the severity of exploitable vulnerabilities. However, for medical devices it does not consider the unique challenges of impacts to human health and privacy. Thus, the scoring of a medical device on which human life depends (e.g., pacemakers, insulin pumps) can score very low, while a system on which human life does not depend (e.g., hospital archiving systems) might score very high. In this paper, we propose a medical vulnerability scoring system (MVSS) that extends CVSS to address the health and privacy concerns of medical devices. We propose incorporating two new parameters, namely health impact, and sensitivity impact. Sensitivity refers to the type of information that can be stolen from the device, and health represents the impact on the safety of the patient if the vulnerability is exploited (e.g., potential harm, life-threatening). We evaluate fifteen different known vulnerabilities in medical devices and compare MVSS against two state-of-the-art medical device-oriented vulnerability scoring systems and the foundational CVSS. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=common%20vulnerability%20system" title="common vulnerability system">common vulnerability system</a>, <a href="https://publications.waset.org/abstracts/search?q=medical%20devices" title=" medical devices"> medical devices</a>, <a href="https://publications.waset.org/abstracts/search?q=medical%20device%20security" title=" medical device security"> medical device security</a>, <a href="https://publications.waset.org/abstracts/search?q=vulnerabilities" title=" vulnerabilities"> vulnerabilities</a> </p> <a href="https://publications.waset.org/abstracts/135685/a-medical-vulnerability-scoring-system-incorporating-health-and-data-sensitivity-metrics" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/135685.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">166</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> Impact of Social Transfers on Energy Poverty in Turkey</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Julide%20Yildirim">Julide Yildirim</a>, <a href="https://publications.waset.org/abstracts/search?q=Nadir%20Ocal"> Nadir Ocal</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Even though there are many studies investigating the extent and determinants of poverty, there is paucity of research investigating the issue of energy poverty in Turkey. The aim of this paper is threefold: First to investigate the extend of energy poverty in Turkey by using Household Budget Survey datasets belonging to 2005 - 2016 period. Second, to examine the risk factors for energy poverty. Finally, to assess the impact of social assistance program participation on energy poverty. Existing literature employs alternative methods to measure energy poverty. In this study energy poverty is measured by employing expenditure approach, where people are considered as energy poor if they disburse more than 10 per cent of their income to meet their energy requirements. Empirical results indicate that energy poverty rate is around 20 per cent during the time period under consideration. Since Household Budget Survey panel data is not available for 2005 - 2016 period, a pseudo panel has been constructed. Panel logistic regression method is utilized to determine the risk factors for energy poverty. The empirical results demonstrate that there is a statistically significant impact of work status and education level on energy poverty likelihood. In the final part of the paper the impact of social transfers on energy poverty has been examined by utilizing panel biprobit model, where social transfer participation and energy poverty incidences are jointly modeled. The empirical findings indicate that social transfer program participation reduces energy poverty. The negative association between energy poverty and social transfer program participation is more pronounced in urban areas compared with the rural areas. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=energy%20poverty" title="energy poverty">energy poverty</a>, <a href="https://publications.waset.org/abstracts/search?q=social%20transfers" title=" social transfers"> social transfers</a>, <a href="https://publications.waset.org/abstracts/search?q=panel%20data%20models" title=" panel data models"> panel data models</a>, <a href="https://publications.waset.org/abstracts/search?q=Turkey" title=" Turkey"> Turkey</a> </p> <a href="https://publications.waset.org/abstracts/106960/impact-of-social-transfers-on-energy-poverty-in-turkey" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/106960.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">141</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> Levansucrase from Zymomonas Mobilis KIBGE-IB14: Production Optimization and Characterization for High Enzyme Yield</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sidra%20Shaheen">Sidra Shaheen</a>, <a href="https://publications.waset.org/abstracts/search?q=Nadir%20Naveed%20Siddiqui"> Nadir Naveed Siddiqui</a>, <a href="https://publications.waset.org/abstracts/search?q=Shah%20Ali%20Ul%20Qader"> Shah Ali Ul Qader</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In recent years, significant progress has been made in discovering and developing new bacterial polysaccharides producing organisms possessing extremely functional properties. Levan is a natural biopolymer of fructose which is produced by transfructosylation reaction in the presence of levansucrase. It is one of the industrially promising enzymes that offer a variety of industrial applications in the field of cosmetics, foods and pharmaceuticals. Although levan has significant applications but the yield of levan produced is not equal to other biopolymers due to the inefficiency of producer microorganism. Among wide range of levansucrase producing microorganisms, Zymomonas mobilis is considered as a potential candidate for large scale production of this natural polysaccharide. The present investigation is concerned with the isolation of levansucrase producing natural isolate having maximum enzyme production. Furthermore, production parameters were optimized to get higher enzyme yield. Levansucrase was partially purified and characterized to study its applicability on industrial scale. The results of this study revealed that the bacterial strain Z. mobilis KIBGE-IB14 was the best producer of levansucrase. Bacterial growth and enzyme production was greatly influenced by physical and chemical parameters. Maximum levansucrase production was achieved after 24 hours of fermentation at 30°C using modified medium of pH-6.5. Contrary to other levansucrases, the one presented in the current study is able to produce high amount of products in relatively short period of time with optimum temperature at 35°C. Due to these advantages, this enzyme can be used on large scale for commercial production of levan and other important metabolites. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=levansucrase" title="levansucrase">levansucrase</a>, <a href="https://publications.waset.org/abstracts/search?q=metabolites" title=" metabolites"> metabolites</a>, <a href="https://publications.waset.org/abstracts/search?q=polysaccharides" title=" polysaccharides"> polysaccharides</a>, <a href="https://publications.waset.org/abstracts/search?q=transfructosylation" title=" transfructosylation"> transfructosylation</a> </p> <a href="https://publications.waset.org/abstracts/23050/levansucrase-from-zymomonas-mobilis-kibge-ib14-production-optimization-and-characterization-for-high-enzyme-yield" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/23050.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">497</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> Factors Associated with Overweight and Obesity among Recipients of Antiretroviral Therapy at HIV Clinics in Botswana</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jose%20G.%20Tshikuka">Jose G. Tshikuka</a>, <a href="https://publications.waset.org/abstracts/search?q=Goabaone%20Rankgoane-Pono"> Goabaone Rankgoane-Pono</a>, <a href="https://publications.waset.org/abstracts/search?q=Mgaywa%20G.%20M.%20D.%20Magafu"> Mgaywa G. M. D. Magafu</a>, <a href="https://publications.waset.org/abstracts/search?q=Julius%20C.%20Mwita"> Julius C. Mwita</a>, <a href="https://publications.waset.org/abstracts/search?q=Tiny%20Masupe"> Tiny Masupe</a>, <a href="https://publications.waset.org/abstracts/search?q=Fortunat%20M.%20Kandanda"> Fortunat M. Kandanda</a>, <a href="https://publications.waset.org/abstracts/search?q=Shimeles%20G.%20Hamda"> Shimeles G. Hamda</a>, <a href="https://publications.waset.org/abstracts/search?q=Roy%20Tapera"> Roy Tapera</a>, <a href="https://publications.waset.org/abstracts/search?q=Mooketsi%20Molefi"> Mooketsi Molefi</a>, <a href="https://publications.waset.org/abstracts/search?q=John%20T.%20Tlhakanelo"> John T. Tlhakanelo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: Factors associated with overweight and obesity among antiretroviral therapy (ART) recipients have not been sufficiently studied in Botswana. We aimed to study (i) the prevalence and trends in overweight/obesity by duration of exposure to ART among recipients, (ii) changes in body mass index (BMI) categories among recipients before ART initiation (BMI-1) and after ART initiation (BMI-2), (iii) associations between ART and overweight/obesity and (iv) factors associated with BMI changes among ART recipients. Methods: A 12 years retrospective record-based review was conducted. Factors potentially associated with BMI change among patients after at least three years of ART exposure were examined using multiple regression model. Adjusted odds ratios (AOR) and their 95% confidence intervals (CIs) were computed. ART regimens, duration of exposure to ART, and recipients’ demographic and biomedical characteristics including the presence or absence of diabetes mellitus related comorbidities (DRC) were investigated as potential factors associated with overweight/obesity. Results: Twenty-nine percent of recipients were overweight, 16.6% had obesity of whom 2.4% were morbidly-obese at the last clinic visit. Overweight/obesity recipients were more likely to be female, to have DRC and less likely to have nadir CD4 count or CD4 count between 201 – 249 cells/mm³. Neither the first-line nor the second-, third-line ART regimens predicted overweight/obesity more than the other and neither did the duration of exposure to ART. No significant linear trends were observed in the prevalence of overweight/obesity by the duration of exposure to ART. Conclusions: These results indicate that overweight/obesity seen among ART recipients is not directly induced by ART. ART used CD4 and/or DRC pathway to induce overweight/obesity seen among recipients; suggesting that, weight gain documented herein is likely a reflection of improved health status that mirrors trends in the general population or a DRC related effect. Weight management programs may be important components of HIV care. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=overweight%2Fobesity" title="overweight/obesity">overweight/obesity</a>, <a href="https://publications.waset.org/abstracts/search?q=recipients%20of%20antiretroviral%20therapy" title=" recipients of antiretroviral therapy"> recipients of antiretroviral therapy</a>, <a href="https://publications.waset.org/abstracts/search?q=HIV%2FAIDS" title=" HIV/AIDS"> HIV/AIDS</a>, <a href="https://publications.waset.org/abstracts/search?q=Botswana" title=" Botswana"> Botswana</a> </p> <a href="https://publications.waset.org/abstracts/101279/factors-associated-with-overweight-and-obesity-among-recipients-of-antiretroviral-therapy-at-hiv-clinics-in-botswana" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/101279.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">159</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> Assessment on Rumen Microbial Diversity of Bali Cattle Using 16S rRNA Sequencing</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Asmuddin%20Natsir">Asmuddin Natsir</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Mujnisa"> A. Mujnisa</a>, <a href="https://publications.waset.org/abstracts/search?q=Syahriani%20Syahrir"> Syahriani Syahrir</a>, <a href="https://publications.waset.org/abstracts/search?q=Marhamah%20Nadir"> Marhamah Nadir</a>, <a href="https://publications.waset.org/abstracts/search?q=Nurul%20Purnomo"> Nurul Purnomo </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Bacteria, protozoa, Archaea, and fungi are the dominant microorganisms found in the rumen ecosystem that has an important role in converting feed ingredients into components that can be digested and utilized by the livestock host. This study was conducted to assess the diversity of rumen bacteria of bali cattle raised under traditional farming condition. Three adult bali cattle were used in this experiment. The rumen fluid samples from the three experimental animals were obtained by the Stomach Tube method before the morning feeding. The results of study indicated that the Illumina sequencing was successful in identifying 301,589 sequences, averaging 100,533 sequences, from three rumen fluid samples of three cattle. Furthermore, based on the SILVA taxonomic database, there were 19 kinds of phyla that had been successfully identified. Of the 19 phyla, there were only two dominant groups across the three samples, namely Bacteroidetes and Firmicutes, with an average percentage of 83.68% and 13.43%, respectively. Other groups such as Synergistetes, Spirochaetae, Planctomycetes can also be identified but in relatively small percentage. At the genus level, there were 157 sequences obtained from all three samples. Of this number, the most dominant group was Prevotella 1 with a percentage of 71.82% followed by 6.94% of Christencenellaceae R-7 group. Other groups such as Prevotellaceae UCG-001, Ruminococcaceae NK4A214 group, Sphaerochaeta, Ruminococcus 2, Rikenellaceae RC9 gut group, Quinella were also identified but with very low percentages. The sequencing results were able to detect the presence of 3.06% and 3.92% respectively for uncultured rumen bacterium and uncultured bacterium. In conclusion, the results of this experiment can provide an opportunity for a better understanding of the rumen bacterial diversity of the bali cattle raised under traditional farming condition and insight regarding the uncultured rumen bacterium and uncultured bacterium that need to be further explored. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=16S%20rRNA%20sequencing" title="16S rRNA sequencing">16S rRNA sequencing</a>, <a href="https://publications.waset.org/abstracts/search?q=bali%20cattle" title=" bali cattle"> bali cattle</a>, <a href="https://publications.waset.org/abstracts/search?q=rumen%20microbial%20diversity" title=" rumen microbial diversity"> rumen microbial diversity</a>, <a href="https://publications.waset.org/abstracts/search?q=uncultured%20rumen%20bacterium" title=" uncultured rumen bacterium"> uncultured rumen bacterium</a> </p> <a href="https://publications.waset.org/abstracts/80303/assessment-on-rumen-microbial-diversity-of-bali-cattle-using-16s-rrna-sequencing" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/80303.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">336</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> Performance Evaluation of a Very High-Resolution Satellite Telescope</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Walid%20A.%20Attia">Walid A. Attia</a>, <a href="https://publications.waset.org/abstracts/search?q=Taher%20M.%20Bazan"> Taher M. Bazan</a>, <a href="https://publications.waset.org/abstracts/search?q=Fawzy%20Eltohamy"> Fawzy Eltohamy</a>, <a href="https://publications.waset.org/abstracts/search?q=Mahmoud%20Fathy"> Mahmoud Fathy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> System performance evaluation is an essential stage in the design of high-resolution satellite telescopes prior to the development process. In this paper, a system performance evaluation of a very high-resolution satellite telescope is investigated. The evaluated system has a Korsch optical scheme design. This design has been discussed in another paper with respect to three-mirror anastigmat (TMA) scheme design and the former configuration showed better results. The investigated system is based on the Korsch optical design integrated with a time-delay and integration charge coupled device (TDI-CCD) sensor to achieve a ground sampling distance (GSD) of 25 cm. The key performance metrics considered are the spatial resolution, the signal to noise ratio (SNR) and the total modulation transfer function (MTF) of the system. In addition, the national image interpretability rating scale (NIIRS) metric is assessed to predict the image quality according to the modified general image quality equation (GIQE). Based on the orbital, optical and detector parameters, the estimated GSD is found to be 25 cm. The SNR has been analyzed at different illumination conditions of target albedos, sun and sensor angles. The system MTF has been computed including diffraction, aberration, optical manufacturing, smear and detector sampling as the main contributors for evaluation the MTF. Finally, the system performance evaluation results show that the computed MTF value is found to be around 0.08 at the Nyquist frequency, the SNR value was found to be 130 at albedo 0.2 with a nadir viewing angles and the predicted NIIRS is in the order of 6.5 which implies a very good system image quality. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=modulation%20transfer%20function" title="modulation transfer function">modulation transfer function</a>, <a href="https://publications.waset.org/abstracts/search?q=national%20image%20interpretability%20rating%20scale" title=" national image interpretability rating scale"> national image interpretability rating scale</a>, <a href="https://publications.waset.org/abstracts/search?q=signal%20to%20noise%20ratio" title=" signal to noise ratio"> signal to noise ratio</a>, <a href="https://publications.waset.org/abstracts/search?q=satellite%20telescope%20performance%20evaluation" title=" satellite telescope performance evaluation"> satellite telescope performance evaluation</a> </p> <a href="https://publications.waset.org/abstracts/80164/performance-evaluation-of-a-very-high-resolution-satellite-telescope" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/80164.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">384</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> Next-Generation Laser-Based Transponder and 3D Switch for Free Space Optics in Nanosatellite</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nadir%20Atayev">Nadir Atayev</a>, <a href="https://publications.waset.org/abstracts/search?q=Mehman%20Hasanov"> Mehman Hasanov</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Future spacecraft will require a structural change in the way data is transmitted due to the increase in the volume of data required for space communication. Current radio frequency communication systems are already facing a bottleneck in the volume of data sent to the ground segment due to their technological and regulatory characteristics. To overcome these issues, free space optics communication plays an important role in the integrated terrestrial space network due to its advantages such as significantly improved data rate compared to traditional RF technology, low cost, improved security, and inter-satellite free space communication, as well as uses a laser beam, which is an optical signal carrier to establish satellite-ground & ground-to-satellite links. In this approach, there is a need for high-speed and energy-efficient systems as a base platform for sending high-volume video & audio data. Nano Satellite and its branch CubeSat platforms have more technical functionality than large satellites, wheres cover an important part of the space sector, with their Low-Earth-Orbit application area with low-cost design and technical functionality for building networks using different communication topologies. Along the research theme developed in this regard, the output parameter indicators for the FSO of the optical communication transceiver subsystem on the existing CubeSat platforms, and in the direction of improving the mentioned parameters of this communication methodology, 3D optical switch and laser beam controlled optical transponder with 2U CubeSat structural subsystems and application in the Low Earth Orbit satellite network topology, as well as its functional performance and structural parameters, has been studied accordingly. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cubesat" title="cubesat">cubesat</a>, <a href="https://publications.waset.org/abstracts/search?q=free%20space%20optics" title=" free space optics"> free space optics</a>, <a href="https://publications.waset.org/abstracts/search?q=nano%20satellite" title=" nano satellite"> nano satellite</a>, <a href="https://publications.waset.org/abstracts/search?q=optical%20laser%20communication." title=" optical laser communication."> optical laser communication.</a> </p> <a href="https://publications.waset.org/abstracts/165758/next-generation-laser-based-transponder-and-3d-switch-for-free-space-optics-in-nanosatellite" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/165758.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">89</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">4</span> Applying Cognitive Psychology to Education: Translational Educational Science</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hammache%20Nadir">Hammache Nadir</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The scientific study of human learning and memory is now more than 125 years old. Psychologists have conducted thousands of experiments, correlational analyses, and field studies during this time, in addition to other research conducted by those from neighboring fields. A huge knowledge base has been carefully built up over the decades. Given this backdrop, we may ask ourselves: What great changes in education have resulted from this huge research base? How has the scientific study of learning and memory changed practices in education from those of, say, a century ago? Have we succeeded in building a translational educational science to rival medical science (in which biological knowledge is translated into medical practice) or types of engineering (in which, e.g., basic knowledge in chemistry is translated into products through chemical engineering)? The answer, I am afraid, is rather mixed. Psychologists and psychological research have influenced educational practice, but in fits and starts. After all, some of the great founders of American psychology—William James, Edward L. Thorndike, John Dewey, and others—are also revered as important figures in the history of education. And some psychological research and ideas have made their way into education—for instance, computer-based cognitive tutors for some specific topics have been developed in recent years—and in years past, such practices as teaching machines, programmed learning, and, in higher education, the Keller Plan were all important. These older practices have not been sustained. Was that because they failed or because of a lack of systematic research showing they were effective? At any rate, in 2012, we cannot point to a well-developed translational educational science in which research about learning and memory, thinking and reasoning, and related topics is moved from the lab into controlled field trials (like clinical trials in medicine) and the tested techniques, if they succeed, are introduced into broad educational practice. We are just not there yet, and one question that arises is how we could achieve a translational educational science. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=affective" title="affective">affective</a>, <a href="https://publications.waset.org/abstracts/search?q=education" title=" education"> education</a>, <a href="https://publications.waset.org/abstracts/search?q=cognition" title=" cognition"> cognition</a>, <a href="https://publications.waset.org/abstracts/search?q=pshychology" title=" pshychology "> pshychology </a> </p> <a href="https://publications.waset.org/abstracts/32424/applying-cognitive-psychology-to-education-translational-educational-science" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/32424.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">346</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3</span> The Changes of Chemical Composition of Rice Straw Treated by a Biodecomposer Developed from Rumen Bacterial of Buffalo</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20Natsir">A. Natsir</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Nadir"> M. Nadir</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Syahrir"> S. Syahrir</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Mujnisa"> A. Mujnisa</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In tropical countries such as in Indonesia, rice straw plays an important role in fulfilling the needs of feed for ruminant, especially during the dry season in which the availability of forage is very limited. However, the main problem of using rice straw as a feedstuff is low digestibility due to the existence of the links between lignin and cellulose or hemicellulose, and imbalance of its minerals content. One alternative to solve this problem is by application of biodecomposer (BS) derived from rumen bacterial of the ruminant. This study was designed to assess the effects of BS application on the changes of the chemical composition of rice straw. Four adults local buffalo raised under typical feeding conditions were used as a source of inoculum for BS development. The animal was fed for a month with a diet consisted of rice straw and elephant grass before taking rumen fluid samples. Samples of rumen fluid were inoculated in the carboxymethyl cellulose (CMC) media under anaerobic condition for 48 hours at 37°C. The mixture of CMC media and microbes are ready to be used as a biodecomposer following incubation of the mixture under anaerobic condition for 7 days at 45°C. The effectiveness of BS then assessed by applying the BS on the straw according to completely randomized design consisted of four treatments and three replication. One hundred g of ground coarse rice straw was used as the substrate. The BS was applied to the rice straw substrate with the following composition: Rice straw without BS (P0), rice straw + 5% BS (P1), rice straw +10% BS (P2), and rice straw + 15% BS. The mixture of rice straw and BS then fermented under anaerobic for four weeks. Following the fermentation, the chemical composition of rice straw was evaluated. The results indicated that the crude protein content of rice straw significantly increased (P < 0.05) as the level of BS increased. On the other hand, the concentration of crude fiber of the rice straw was significantly decreased (P < 0.05) as the level of BS increased. Other nutrients such as minerals did not change (P > 0.05) due to the treatments. In conclusion, application of BS developed from rumen bacterial of buffalo has a promising prospect to be used as a biological agent to improve the quality of rice straw as feeding for ruminant. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=biodecomposer" title="biodecomposer">biodecomposer</a>, <a href="https://publications.waset.org/abstracts/search?q=local%20buffalo" title=" local buffalo"> local buffalo</a>, <a href="https://publications.waset.org/abstracts/search?q=rumen%20microbial" title=" rumen microbial"> rumen microbial</a>, <a href="https://publications.waset.org/abstracts/search?q=chemical%20composition" title=" chemical composition"> chemical composition</a> </p> <a href="https://publications.waset.org/abstracts/102548/the-changes-of-chemical-composition-of-rice-straw-treated-by-a-biodecomposer-developed-from-rumen-bacterial-of-buffalo" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/102548.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">208</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=Nadir%20Hakem&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Nadir%20Hakem&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 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