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<!DOCTYPE html> <html lang="en" dir="ltr"> <head>  <script async src="https://www.googletagmanager.com/gtag/js?id=G-P63WKM1TM1"></script> <script> window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config', 'G-P63WKM1TM1'); </script>  <script type="text/javascript" > (function(m,e,t,r,i,k,a){m[i]=m[i]||function(){(m[i].a=m[i].a||[]).push(arguments)}; m[i].l=1*new Date(); for (var j = 0; j < document.scripts.length; j++) {if (document.scripts[j].src === r) { return; }} k=e.createElement(t),a=e.getElementsByTagName(t)[0],k.async=1,k.src=r,a.parentNode.insertBefore(k,a)}) (window, document, "script", "https://mc.yandex.ru/metrika/tag.js", "ym"); ym(55165297, "init", { clickmap:false, trackLinks:true, accurateTrackBounce:true, webvisor:false }); </script> <noscript><div><img src="https://mc.yandex.ru/watch/55165297" style="position:absolute; left:-9999px;" alt="" /></div></noscript>    <title>Search results for: Ezzat A. Badawy</title> <meta name="description" content="Search results for: Ezzat A. Badawy"> <meta name="keywords" content="Ezzat A. Badawy"> <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" type="button" data-toggle="collapse" data-target="#navbarMenu" aria-controls="navbarMenu" aria-expanded="false" aria-label="Toggle navigation"> <span class="navbar-toggler-icon"></span> </button> <div class="w-100"> <div class="d-none d-lg-flex flex-row-reverse"> <form method="get" action="https://waset.org/search" class="form-inline my-2 my-lg-0"> <input class="form-control mr-sm-2" type="search" placeholder="Search Conferences" value="Ezzat A. 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Badawy"> <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> 37</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Ezzat A. Badawy</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">37</span> Relation between Demodex folliculorum and Rosacea</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Maha%20M.%20Eissa">Maha M. Eissa</a>, <a href="https://publications.waset.org/abstracts/search?q=Safia%20M.%20Ali"> Safia M. Ali</a>, <a href="https://publications.waset.org/abstracts/search?q=Sonia%20R.%20Allam"> Sonia R. Allam</a>, <a href="https://publications.waset.org/abstracts/search?q=Ezzat%20A.%20Badawy"> Ezzat A. Badawy</a>, <a href="https://publications.waset.org/abstracts/search?q=Nahed%20M.%20Baddour"> Nahed M. Baddour</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The obligate follicle mite Demodex folliculorum (Df) has been demonstrated in increased numbers in patients with rosacea. The significance of this finding is still not completely understood because many people free of skin disease may also have mites. So, the aim of this work was to study the possible role of Df in patients with rosacea. Facial punch biopsy specimens were taken from patients with rosacea (either telangiectatic, papulopustular, squamous, granulomatous form or with rhinophyma) and age and sex-matched healthy subjects. Results of this study showed that 63.3% of the rosacea patients were harbouring the mite, with a higher incidence in patients with papulopustular form. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Demodex%20folliculorum" title="Demodex folliculorum">Demodex folliculorum</a>, <a href="https://publications.waset.org/abstracts/search?q=histopathology" title=" histopathology"> histopathology</a>, <a href="https://publications.waset.org/abstracts/search?q=punch%20biopsy" title=" punch biopsy"> punch biopsy</a>, <a href="https://publications.waset.org/abstracts/search?q=rosacea" title=" rosacea"> rosacea</a> </p> <a href="https://publications.waset.org/abstracts/156841/relation-between-demodex-folliculorum-and-rosacea" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/156841.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">116</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">36</span> Relation Between Demodex Folliculorum and Rosacea</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Maha%20M.%20Eissa">Maha M. Eissa</a>, <a href="https://publications.waset.org/abstracts/search?q=Safia%20M.%20Ali"> Safia M. Ali</a>, <a href="https://publications.waset.org/abstracts/search?q=Sonia%20R.%20Allam"> Sonia R. Allam</a>, <a href="https://publications.waset.org/abstracts/search?q=Ezzat%20A.%20Badawy"> Ezzat A. Badawy</a>, <a href="https://publications.waset.org/abstracts/search?q=Nahid%20M.%20Baddour"> Nahid M. Baddour</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The obligate follicle mite Demodex folliculorum (Df) has been demonstrated in increased numbers in patients with rosacea. The significance of this finding is still not completely understood, because many people free of skin disease may also have mites. So, the aim of this work was to study the possible role of Df in patients with rosacea. Facial punch biopsy specimens were taken from patients with rosacea (either telangiectatic, papulopustular, squamous, granulomatous form or with rhinophyma) and age and sex matched healthy subjects. Results of this study showed that 63.3% of the rosacea patients were harbouring the mite with higher incidence in patients with papulopustular form. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Demodex%20folliculorum" title="Demodex folliculorum">Demodex folliculorum</a>, <a href="https://publications.waset.org/abstracts/search?q=rosacea" title=" rosacea"> rosacea</a>, <a href="https://publications.waset.org/abstracts/search?q=papulopustular" title=" papulopustular"> papulopustular</a>, <a href="https://publications.waset.org/abstracts/search?q=punch%20biopsy" title=" punch biopsy"> punch biopsy</a> </p> <a href="https://publications.waset.org/abstracts/150703/relation-between-demodex-folliculorum-and-rosacea" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/150703.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">120</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">35</span> Responding of Vertical Gardens and Green Facades in Urban Design to the Global Environmental Impacts and the Call for Greening in Urban Spaces</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Esraa%20Mohamed%20Ezzat%20Ramadan%20Elkhaiary">Esraa Mohamed Ezzat Ramadan Elkhaiary</a>, <a href="https://publications.waset.org/abstracts/search?q=Ayah%20Mohamed%20Ezzat%20Ramadan%20Elkhaiary"> Ayah Mohamed Ezzat Ramadan Elkhaiary</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Yehia%20Ismaiel"> Ahmed Yehia Ismaiel</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Vertical lawn is crucial for the development of the constructed surroundings’ sustainability. Their implementation is also ecologically and aesthetically ideal as a good enough architectural characteristic that enhancements facades. Furthermore, their exploitation ends in a power-conscious design that prevents densely populated city areas in Cairo from transforming right into a deteriorated natural environment. After collaborative studies and analysis, it concluded that installing the vertical garden will not simply enhance urban spaces and informal settlements’ homes aesthetically but also offer an excellent role version to the metropolis in how future buildings can be constructed with vertical gardens established. Most significantly, it will enhance the general public consciousness of the inexperienced functions of the vertical garden to the constructing customers and visitors. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=vertical%20gardens" title="vertical gardens">vertical gardens</a>, <a href="https://publications.waset.org/abstracts/search?q=green%20facades" title=" green facades"> green facades</a>, <a href="https://publications.waset.org/abstracts/search?q=urban%20rehabilitation" title=" urban rehabilitation"> urban rehabilitation</a>, <a href="https://publications.waset.org/abstracts/search?q=urban%20spaces" title=" urban spaces"> urban spaces</a> </p> <a href="https://publications.waset.org/abstracts/173737/responding-of-vertical-gardens-and-green-facades-in-urban-design-to-the-global-environmental-impacts-and-the-call-for-greening-in-urban-spaces" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/173737.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">71</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">34</span> QTAIM View of Metal-Metal Bonding in Trinuclear Mixed-Metal Bridged Ligand Clusters Containing Ruthenium and Osmium</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nadia%20Ezzat%20Al-Kirbasee">Nadia Ezzat Al-Kirbasee</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahlam%20Hussein%20Hassan"> Ahlam Hussein Hassan</a>, <a href="https://publications.waset.org/abstracts/search?q=Shatha%20Raheem%20Helal%20Alhimidi"> Shatha Raheem Helal Alhimidi</a>, <a href="https://publications.waset.org/abstracts/search?q=Doaa%20Ezzat%20Al-Kirbasee"> Doaa Ezzat Al-Kirbasee</a>, <a href="https://publications.waset.org/abstracts/search?q=Muhsen%20Abood%20Muhsen%20Al-Ibadi"> Muhsen Abood Muhsen Al-Ibadi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Through DFT/QTAIM calculations, we have provided new insights into the nature of the M-M, M-H, M-O, and M-C bonds of the (Cp*Ru)n(Cp*Os)3−n(μ3-O)2(μ-H)(Cp* = η5-C5Me5, n= 3,2,1,0). The topological analysis of the electron density reveals important details of the chemical bonding interactions in the clusters. Calculations confirm the absence of bond critical points (BCP) and the corresponding bond paths (BP) between Ru-Ru, Ru-Os, and Os-Os. The position of bridging hydrides and Oxo atoms coordinated to Ru-Ru, Ru-Os, and Os-Os determines the distribution of the electron densities and which strongly affects the formation of the bonds between these transition metal atoms. On the other hand, the results confirm that the four clusters contain a 6c–12e and 4c–2e bonding interaction delocalized over M3(μ-H)(μ-O)2 and M3(μ-H), respectively, as revealed by the non-negligible delocalization indexes calculations. The small values for electron density ρ(b) above zero, together with the small values, again above zero, for laplacian ∇2ρ(b) and the small negative values for total energy density H(b) are shown by the Ru-H, Os-H, Ru-O, and Os-O bonds in the four clusters are typical of open shell interactions. Also, the topological data for the bonds between Ru and Os atoms with the C atoms of the pentamethylcyclopentadienyl (Cp*) ring ligands are basically similar and show properties very consistent with open shell interactions in the QTAIM classification. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=metal-metal%20and%20metal-ligand%20interactions" title="metal-metal and metal-ligand interactions">metal-metal and metal-ligand interactions</a>, <a href="https://publications.waset.org/abstracts/search?q=organometallic%20complexes" title=" organometallic complexes"> organometallic complexes</a>, <a href="https://publications.waset.org/abstracts/search?q=topological%20analysis" title=" topological analysis"> topological analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=DFT%20and%20QTAIM%20analyses" title=" DFT and QTAIM analyses"> DFT and QTAIM analyses</a> </p> <a href="https://publications.waset.org/abstracts/145093/qtaim-view-of-metal-metal-bonding-in-trinuclear-mixed-metal-bridged-ligand-clusters-containing-ruthenium-and-osmium" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/145093.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">93</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">33</span> Technical and Economical Evaluation of Electricity Generation and Seawater Desalination Using Nuclear Energy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20Hany%20A.%20Khater">A. Hany A. Khater</a>, <a href="https://publications.waset.org/abstracts/search?q=G.%20M.%20Mostafa"> G. M. Mostafa</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20R.%20Badawy"> M. R. Badawy </a> </p> <p class="card-text"><strong>Abstract:</strong></p> The techno-economic analysis of the nuclear desalination is a very important tool that enables studying of the mutual effects between the nuclear power plant and the coupled desalination plant under different operating conditions, and hence investigating the feasibility of safe and economical production of potable water. For this purpose, a comprehensive model for both technical and economic performance evaluation of the nuclear desalination has been prepared. The developed model has the capability to be used in performing a parametric study for the performance measuring parameters of the nuclear desalination system. Also a sensitivity analysis of varying important factors such as interest/discount rate, power plant availability, fossil fuel prices, purchased electricity price, nuclear fuel cost, and specific base cost for both power and water plant has been conducted. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=uclear%20desalination" title="uclear desalination">uclear desalination</a>, <a href="https://publications.waset.org/abstracts/search?q=PWR" title=" PWR"> PWR</a>, <a href="https://publications.waset.org/abstracts/search?q=MED" title=" MED"> MED</a>, <a href="https://publications.waset.org/abstracts/search?q=MED-TVC" title=" MED-TVC"> MED-TVC</a>, <a href="https://publications.waset.org/abstracts/search?q=MSF" title=" MSF"> MSF</a>, <a href="https://publications.waset.org/abstracts/search?q=RO" title=" RO"> RO</a> </p> <a href="https://publications.waset.org/abstracts/25942/technical-and-economical-evaluation-of-electricity-generation-and-seawater-desalination-using-nuclear-energy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/25942.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">725</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">32</span> Green, Smooth and Easy Electrochemical Synthesis of N-Protected Indole Derivatives</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sarah%20Fahad%20Alajmi">Sarah Fahad Alajmi</a>, <a href="https://publications.waset.org/abstracts/search?q=Tamer%20Ezzat%20Youssef"> Tamer Ezzat Youssef</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Here, we report a simple method for the direct conversion of 6-Nitro-1H-indole into <em>N</em>-substituted indoles via electrochemical dehydrogenative reaction with halogenated reagents under strongly basic conditions through N–R bond formation. The <em>N</em>-protected indoles have been prepared under moderate and scalable electrolytic conditions. The conduct of the reactions was performed in a simple divided cell under constant current without oxidizing reagents or transition-metal catalysts. The synthesized products have been characterized via UV/Vis spectrophotometry, 1H-NMR, and FTIR spectroscopy. A possible reaction mechanism is discussed based on the <em>N</em>-protective products. This methodology could be applied to the synthesis of various biologically active <em>N</em>-substituted indole derivatives. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=green%20chemistry" title="green chemistry">green chemistry</a>, <a href="https://publications.waset.org/abstracts/search?q=1H-indole" title=" 1H-indole"> 1H-indole</a>, <a href="https://publications.waset.org/abstracts/search?q=heteroaromatic" title=" heteroaromatic"> heteroaromatic</a>, <a href="https://publications.waset.org/abstracts/search?q=organic%20electrosynthesis" title=" organic electrosynthesis"> organic electrosynthesis</a> </p> <a href="https://publications.waset.org/abstracts/129536/green-smooth-and-easy-electrochemical-synthesis-of-n-protected-indole-derivatives" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/129536.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">161</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> Symmetrical In-Plane Resonant Gyroscope with Decoupled Modes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Shady%20Sayed">Shady Sayed</a>, <a href="https://publications.waset.org/abstracts/search?q=Samer%20Wagdy"> Samer Wagdy</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Badawy"> Ahmed Badawy</a>, <a href="https://publications.waset.org/abstracts/search?q=Moutaz%20M.%20Hegaze"> Moutaz M. Hegaze</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A symmetrical single mass resonant gyroscope is discussed in this paper. The symmetrical design allows matched resonant frequencies for driving and sensing vibration modes, which leads to amplifying the sensitivity of the gyroscope by the mechanical quality factor of the sense mode. It also achieves decoupled vibration modes for getting a low zero-rate output shift and more stable operation environment. A new suspension beams design is developed to get a symmetrical gyroscope with matched and decoupled modes at the same time. Finite element simulations are performed using ANSYS software package to verify the theoretical calculations. The gyroscope is fabricated from aluminum alloy 2024 substrate, the measured drive and sense resonant frequencies of the fabricated model are matched and equal 81.4 Hz with 5.7% error from the simulation results. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=decoupled%20mode%20shapes" title="decoupled mode shapes">decoupled mode shapes</a>, <a href="https://publications.waset.org/abstracts/search?q=resonant%20sensor" title=" resonant sensor"> resonant sensor</a>, <a href="https://publications.waset.org/abstracts/search?q=symmetrical%20gyroscope" title=" symmetrical gyroscope"> symmetrical gyroscope</a>, <a href="https://publications.waset.org/abstracts/search?q=finite%20element%20simulation" title=" finite element simulation"> finite element simulation</a> </p> <a href="https://publications.waset.org/abstracts/59351/symmetrical-in-plane-resonant-gyroscope-with-decoupled-modes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/59351.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">311</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> Variations in the Frequency-Magnitude Distribution with Depth in Kalabsha Area, Aswan, South Egypt</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ezzat%20Mohamed%20El-Amin">Ezzat Mohamed El-Amin</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Mapping the earthquake-size distribution in various tectonic regimes on a local to regional scale reveals statistically significant variations in the range of at least 0.4 to 2.0 for the b-value in the frequency-magnitude distribution. We map the earthquake frequency–magnitude distribution (b value) as a function of depth in the Reservoir Triggered Seismicity (RTS) region in Kalabsha region, in south Egypt. About 1680 well-located events recorded during 1981–2014 in the Kalabsha region are selected for the analysis. The earthquake data sets are separated in 5 km zones from 0 to 25 km depth. The result shows a systematic decrease in b value up to 12 km followed by an increase. The increase in b value is interpreted to be caused by the presence of ﬂuids. We also investigate the spatial distribution of b value with depth. Signiﬁcant variations in the b value are detected, with b ranging from b 0.7 to 1.19. Low b value areas at 5 km depth indicate localized high stresses which are favorable for future rupture. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=seismicity" title="seismicity">seismicity</a>, <a href="https://publications.waset.org/abstracts/search?q=frequency-magnitude" title=" frequency-magnitude"> frequency-magnitude</a>, <a href="https://publications.waset.org/abstracts/search?q=b-value" title=" b-value"> b-value</a>, <a href="https://publications.waset.org/abstracts/search?q=earthquake" title=" earthquake"> earthquake</a> </p> <a href="https://publications.waset.org/abstracts/35965/variations-in-the-frequency-magnitude-distribution-with-depth-in-kalabsha-area-aswan-south-egypt" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/35965.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">557</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> Power Series Solution to Sliding Velocity in Three-Dimensional Multibody Systems with Impact and Friction</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hesham%20A.%20Elkaranshawy">Hesham A. Elkaranshawy</a>, <a href="https://publications.waset.org/abstracts/search?q=Amr%20M.%20Abdelrazek"> Amr M. Abdelrazek</a>, <a href="https://publications.waset.org/abstracts/search?q=Hosam%20M.%20Ezzat"> Hosam M. Ezzat</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The system of ordinary nonlinear differential equations describing sliding velocity during impact with friction for a three-dimensional rigid-multibody system is developed. No analytical solutions have been obtained before for this highly nonlinear system. Hence, a power series solution is proposed. Since the validity of this solution is limited to its convergence zone, a suitable time step is chosen and at the end of it a new series solution is constructed. For a case study, the trajectory of the sliding velocity using the proposed method is built using 6 time steps, which coincides with a Runge-Kutta solution using 38 time steps. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=impact%20with%20friction" title="impact with friction">impact with friction</a>, <a href="https://publications.waset.org/abstracts/search?q=nonlinear%20ordinary%20differential%20equations" title=" nonlinear ordinary differential equations"> nonlinear ordinary differential equations</a>, <a href="https://publications.waset.org/abstracts/search?q=power%20series%20solutions" title=" power series solutions"> power series solutions</a>, <a href="https://publications.waset.org/abstracts/search?q=rough%20collision" title=" rough collision"> rough collision</a> </p> <a href="https://publications.waset.org/abstracts/37962/power-series-solution-to-sliding-velocity-in-three-dimensional-multibody-systems-with-impact-and-friction" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/37962.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">488</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> A Query Optimization Strategy for Autonomous Distributed Database Systems</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Dina%20K.%20Badawy">Dina K. Badawy</a>, <a href="https://publications.waset.org/abstracts/search?q=Dina%20M.%20Ibrahim"> Dina M. Ibrahim</a>, <a href="https://publications.waset.org/abstracts/search?q=Alsayed%20A.%20Sallam"> Alsayed A. Sallam</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Distributed database is a collection of logically related databases that cooperate in a transparent manner. Query processing uses a communication network for transmitting data between sites. It refers to one of the challenges in the database world. The development of sophisticated query optimization technology is the reason for the commercial success of database systems, which complexity and cost increase with increasing number of relations in the query. Mariposa, query trading and query trading with processing task-trading strategies developed for autonomous distributed database systems, but they cause high optimization cost because of involvement of all nodes in generating an optimal plan. In this paper, we proposed a modification on the autonomous strategy K-QTPT that make the seller’s nodes with the lowest cost have gradually high priorities to reduce the optimization time. We implement our proposed strategy and present the results and analysis based on those results. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=autonomous%20strategies" title="autonomous strategies">autonomous strategies</a>, <a href="https://publications.waset.org/abstracts/search?q=distributed%20database%20systems" title=" distributed database systems"> distributed database systems</a>, <a href="https://publications.waset.org/abstracts/search?q=high%20priority" title=" high priority"> high priority</a>, <a href="https://publications.waset.org/abstracts/search?q=query%20optimization" title=" query optimization"> query optimization</a> </p> <a href="https://publications.waset.org/abstracts/81476/a-query-optimization-strategy-for-autonomous-distributed-database-systems" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/81476.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">524</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">27</span> The Hidden Mechanism beyond Ginger (Zingiber officinale Rosc.) Potent in vivo and in vitro Anti-Inflammatory Activity</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Shahira%20M.%20Ezzat">Shahira M. Ezzat</a>, <a href="https://publications.waset.org/abstracts/search?q=Marwa%20I.%20Ezzat"> Marwa I. Ezzat</a>, <a href="https://publications.waset.org/abstracts/search?q=Mona%20M.%20Okba"> Mona M. Okba</a>, <a href="https://publications.waset.org/abstracts/search?q=Esther%20T.%20Menze"> Esther T. Menze</a>, <a href="https://publications.waset.org/abstracts/search?q=Ashraf%20B.%20Abdel-Naim"> Ashraf B. Abdel-Naim</a>, <a href="https://publications.waset.org/abstracts/search?q=Shahnas%20O.%20Mohamed"> Shahnas O. Mohamed</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: In order to decrease the burden of the high cost of synthetic drugs, it is important to focus on phytopharmaceuticals. The aim of our study was to search for the mechanism of ginger (Zingiber officinale Roscoe) anti-inflammatory potential and to correlate it to its biophytochemicals. Methods: Various extracts viz. water, 50%, 70%, 80%, and 90% ethanol were prepared from ginger rhizomes. Fractionation of the aqueous extract (AE) was accomplished using Diaion HP-20. In vitro anti-inflammatory activity of the different extracts and isolated compounds was evaluated by protein denaturation inhibition, membrane stabilization, protease inhibition, and anti-lipoxygenase assays. In vivo anti-inflammatory activity of AE was estimated by assessment of rat paw oedema after carrageenan injection. Prostaglandin E2 (PGE2), certain inflammation markers (TNF-α, IL-6, IL-1α, IL-1β, INFr, MCP-1MIP, RANTES, and Nox) levels and MPO activity in the paw edema exudates were measured. Total antioxidant capacity (TAC) was also determined. Histopathological alterations of paw tissues were scored. Results: All the tested extracts showed significant (p < 0.1) anti-inflammatory activities. The highest percentage of heat induced albumin denaturation (66%) was exhibited by the 50% ethanol (250 μg/ml). The 70 and 90% ethanol extracts (500 μg/ml) were more potent as membrane stabilizers (34.5 and 37%, respectively) than diclofenac (33%). The 80 and 90% ethanol extracts (500 μg/ml) showed maximum protease inhibition (56%). The strongest anti-lipoxygenase activity was observed for the AE. It showed more significant lipoxygenase inhibition activity than that of diclofenac (58% and 52%, respectively) at the same concentration (125 μg/ml). Fractionation of AE yielded four main fractions (Fr I-IV) which showed significant in vitro anti-inflammatory. Purification of Fr-III and IV led to the isolation of 6-poradol (G1), 6-shogaol (G2); methyl 6- gingerol (G3), 5-gingerol (G4), 6-gingerol (G5), 8-gingerol (G6), 10-gingerol (G7), and 1-dehydro-6-gingerol (G8). G2 (62.5 ug/ml), G1 (250 ug/ml), and G8 (250 ug/ml) exhibited potent anti-inflammatory activity in all studied assays, while G4 and G5 exhibited moderate activity. In vivo administration of AE ameliorated rat paw oedema in a dose-dependent manner. AE (at 200 mg/kg) showed significant reduction (60%) of PGE2 production. The AE at different doses (at 25-200 mg/kg) showed significant reduction in inflammatory markers except for IL-1α. AE (at 25 mg/kg) is superior to indomethacin in reduction of IL-1β. Treatment of animals with the AE (100, 200 mg/kg) or indomethacin (10 mg/kg) showed significant reduction in TNF-α, IL-6, MCP-1, and RANTES levels, and MPO activity by about (31, 57 and 32% ) (65, 60 and 57%) (27, 41 and 28%) (23, 32 and 23%) (66, 67 and 67%) respectively. AE at 100 and 200 mg/kg was equipotent to indomethacin in reduction of NOₓ level and in increasing the TAC. Histopathological examination revealed very few inflammatory cells infiltration and oedema after administration of AE (200 mg/kg) prior to carrageenan. Conclusion: Ginger anti-inflammatory activity is mediated by inhibiting macrophage and neutrophils activation as well as negatively affecting monocyte and leukocyte migration. Moreover, it produced dose-dependent decrease in pro-inflammatory cytokines and chemokines and replenished the total antioxidant capacity. We strongly recommend future investigations of ginger in the potential signal transduction pathways. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=anti-lipoxygenase%20activity" title="anti-lipoxygenase activity">anti-lipoxygenase activity</a>, <a href="https://publications.waset.org/abstracts/search?q=inflammatory%20markers" title=" inflammatory markers"> inflammatory markers</a>, <a href="https://publications.waset.org/abstracts/search?q=1-dehydro-6-gingerol" title=" 1-dehydro-6-gingerol"> 1-dehydro-6-gingerol</a>, <a href="https://publications.waset.org/abstracts/search?q=6-shogaol" title=" 6-shogaol"> 6-shogaol</a> </p> <a href="https://publications.waset.org/abstracts/74482/the-hidden-mechanism-beyond-ginger-zingiber-officinale-rosc-potent-in-vivo-and-in-vitro-anti-inflammatory-activity" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/74482.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">252</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> An Examination of the Factors Affecting the Adoption of Cloud Enterprise Resource Planning Systems in Egyptian Companies</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mayar%20A.%20Omar">Mayar A. Omar</a>, <a href="https://publications.waset.org/abstracts/search?q=Ismail%20Gomaa"> Ismail Gomaa</a>, <a href="https://publications.waset.org/abstracts/search?q=Heba%20Badawy"> Heba Badawy</a>, <a href="https://publications.waset.org/abstracts/search?q=Hosam%20Moubarak"> Hosam Moubarak</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Enterprise resource planning (ERP) is an integrated system that helps companies in managing their resources. There are two types of ERP systems, traditional ERP systems and cloud ERP systems. Cloud ERP systems were introduced after the development of cloud computing technology. This research aims to identify the factors that affect the adoption of cloud ERP in Egyptian companies. Moreover, the aim of our study is to provide guidance to Egyptian companies in the cloud ERP adoption decision and to participate in increasing the number of cloud ERP studies that are conducted in the Middle East and in developing countries. There are many factors influencing the adoption of cloud ERP in Egyptian organizations, which are discussed and explained in the research. Those factors are examined by combining the diffusion of innovation theory (DOI) and technology-organization-environment framework (TOE). Data were collected through a survey that was developed using constructs from the existing studies of cloud computing and cloud ERP technologies and was then modified to fit our research. The analysis of the data was based on structural equation modeling (SEM) using Smart PLS software that was used for the empirical analysis of the research model. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cloud%20computing" title="cloud computing">cloud computing</a>, <a href="https://publications.waset.org/abstracts/search?q=cloud%20ERP%20systems" title=" cloud ERP systems"> cloud ERP systems</a>, <a href="https://publications.waset.org/abstracts/search?q=DOI" title=" DOI"> DOI</a>, <a href="https://publications.waset.org/abstracts/search?q=Egypt" title=" Egypt"> Egypt</a>, <a href="https://publications.waset.org/abstracts/search?q=SEM" title=" SEM"> SEM</a>, <a href="https://publications.waset.org/abstracts/search?q=TOE" title=" TOE"> TOE</a> </p> <a href="https://publications.waset.org/abstracts/142225/an-examination-of-the-factors-affecting-the-adoption-of-cloud-enterprise-resource-planning-systems-in-egyptian-companies" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/142225.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">137</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> Rooting Out Breast Cancer by Repressing ER Gene Expression: Correlating Bioactivity of Pomegranate Rind with Chemical Constituents Identified by HPLC-MS/MS</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alaa%20M.%20M.%20Badr%20Eldin">Alaa M. M. Badr Eldin</a>, <a href="https://publications.waset.org/abstracts/search?q=Marwa%20I.%20Ezzat"> Marwa I. Ezzat</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammed%20S.%20Sedeek"> Mohammed S. Sedeek</a>, <a href="https://publications.waset.org/abstracts/search?q=Manal%20S.%20Afifi"> Manal S. Afifi</a>, <a href="https://publications.waset.org/abstracts/search?q=Omar%20M.%20Sabry"> Omar M. Sabry</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Cytotoxic activity of the total methanol extract against breast cancer cell line MCF-7 was amazing IC50 at 54 ug/ml. 130 polyphenolic compounds were tentatively identified in pomegranate peel (Punica granatum L.) methanol extract using HPLC-MS/MS technique. The antiestrogenic activity of the polyphenolic constituents found in pomegranate extract was confirmed experimentally in-vitro and by the in-silico molecular docking using gallagic acid, ellagic acid, and Punicalagin as these are considered model compounds confirmed in pomegranate peel extract. The methanolic extract was found to suppress ER, TGF-β, and NF-kB in-vitro gene expression strongly, and that was verified by qPCR and Western Blot gel electrophoresis techniques. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=HPLC-MS%2FMS" title="HPLC-MS/MS">HPLC-MS/MS</a>, <a href="https://publications.waset.org/abstracts/search?q=pomegranate" title=" pomegranate"> pomegranate</a>, <a href="https://publications.waset.org/abstracts/search?q=breast%20cancer" title=" breast cancer"> breast cancer</a>, <a href="https://publications.waset.org/abstracts/search?q=ovarian%20cancer" title=" ovarian cancer"> ovarian cancer</a>, <a href="https://publications.waset.org/abstracts/search?q=ER" title=" ER"> ER</a>, <a href="https://publications.waset.org/abstracts/search?q=TGF-%CE%B2" title=" TGF-β"> TGF-β</a>, <a href="https://publications.waset.org/abstracts/search?q=NF-kB" title=" NF-kB"> NF-kB</a> </p> <a href="https://publications.waset.org/abstracts/158003/rooting-out-breast-cancer-by-repressing-er-gene-expression-correlating-bioactivity-of-pomegranate-rind-with-chemical-constituents-identified-by-hplc-msms" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/158003.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">102</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">24</span> Predictors of Non-Alcoholic Fatty Liver Disease in Egyptian Obese Adolescents</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Moushira%20Zaki">Moushira Zaki</a>, <a href="https://publications.waset.org/abstracts/search?q=Wafaa%20Ezzat"> Wafaa Ezzat</a>, <a href="https://publications.waset.org/abstracts/search?q=Yasser%20Elhosary"> Yasser Elhosary</a>, <a href="https://publications.waset.org/abstracts/search?q=Omnia%20Saleh"> Omnia Saleh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Nonalcoholic fatty liver disease (NAFLD) has increased in conjunction with obesity. The accuracy of risk factors for detecting NAFLD in obese adolescents has not undergone a formal evaluation. The aim of this study was to evaluate predictors of NAFLD among Egyptian female obese adolescents. The study included 162 obese female adolescents. All were subjected to anthropometry, biochemical analysis and abdominal ultrasongraphic assessment. Metabolic syndrome (MS) was diagnosed according to the IDF criteria. Significant association between presence of MS and NAFLD was observed. Obese adolescents with NAFLD had significantly higher levels of ALT, triglycerides, fasting glucose, insulin, blood pressure and HOMA-IR, whereas decreased HDL-C levels as compared with obese cases without NAFLD. Receiver–operating characteristic (ROC) curve analysis shows that ALT is a sensitive predictor for NAFLD, confirming that ALT can be used as a marker of NAFLD. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=obesity" title="obesity">obesity</a>, <a href="https://publications.waset.org/abstracts/search?q=NAFLD" title=" NAFLD"> NAFLD</a>, <a href="https://publications.waset.org/abstracts/search?q=predictors" title=" predictors"> predictors</a>, <a href="https://publications.waset.org/abstracts/search?q=adolescents" title=" adolescents"> adolescents</a>, <a href="https://publications.waset.org/abstracts/search?q=Egyptians" title=" Egyptians"> Egyptians</a>, <a href="https://publications.waset.org/abstracts/search?q=risk%20factors" title=" risk factors"> risk factors</a>, <a href="https://publications.waset.org/abstracts/search?q=prevalence" title=" prevalence "> prevalence </a> </p> <a href="https://publications.waset.org/abstracts/8335/predictors-of-non-alcoholic-fatty-liver-disease-in-egyptian-obese-adolescents" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/8335.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">390</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> Triggering Apoptosis to Uproot Breast Cancer: HPLC-MS/MS Profiling, in-vitro and in-silico Fascinating Results of Polyphenolics in Pomegranate Rind Extract</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alaa%20M.%20Badr%20Eldin">Alaa M. Badr Eldin</a>, <a href="https://publications.waset.org/abstracts/search?q=Mayar%20M.%20Shahen"> Mayar M. Shahen</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammed%20S.%20Sedeek"> Mohammed S. Sedeek</a>, <a href="https://publications.waset.org/abstracts/search?q=Marwa%20I.%20Ezzat"> Marwa I. Ezzat</a>, <a href="https://publications.waset.org/abstracts/search?q=Sawsan%20M.%20ElSonbaty"> Sawsan M. ElSonbaty</a>, <a href="https://publications.waset.org/abstracts/search?q=Muhammed%20A.%20Saad"> Muhammed A. Saad</a>, <a href="https://publications.waset.org/abstracts/search?q=Manal%20S.%20Afifi"> Manal S. Afifi</a>, <a href="https://publications.waset.org/abstracts/search?q=Omar%20M.%20Sabry"> Omar M. Sabry</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Using HPLC-MS/MS technique, 133 polyphenolic compounds were identified in the methanol extract of pomegranate rind (Punica granatum L.). In-vitro cytotoxic activity against breast cancer cell line MCF-7 was investigated, with an IC50 of 54 ug/ml. In-silico molecular docking using ellagic acid, gallagic acid, and Punicalagin as model compounds identified in pomegranate rind extract confirmed the intriguing anti-estrogenic action of the key polyphenolic components in pomegranate rind extract. Surprisingly, taxol showed low activity compared to pomegranate compounds as ERα antagonist and ERβ agonist. Pomegranate rind extract enhanced apoptosis of breast cancer cells through upregulation of the caspase-3 expression and downregulation of NF-κB transcription factor. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=HPLC-MS%2FMS" title="HPLC-MS/MS">HPLC-MS/MS</a>, <a href="https://publications.waset.org/abstracts/search?q=pomegranate%20rind" title=" pomegranate rind"> pomegranate rind</a>, <a href="https://publications.waset.org/abstracts/search?q=cytotoxicity" title=" cytotoxicity"> cytotoxicity</a>, <a href="https://publications.waset.org/abstracts/search?q=MCF-7" title=" MCF-7"> MCF-7</a>, <a href="https://publications.waset.org/abstracts/search?q=ER" title=" ER"> ER</a>, <a href="https://publications.waset.org/abstracts/search?q=caspase-3" title=" caspase-3"> caspase-3</a>, <a href="https://publications.waset.org/abstracts/search?q=NF-kB" title=" NF-kB"> NF-kB</a> </p> <a href="https://publications.waset.org/abstracts/163413/triggering-apoptosis-to-uproot-breast-cancer-hplc-msms-profiling-in-vitro-and-in-silico-fascinating-results-of-polyphenolics-in-pomegranate-rind-extract" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/163413.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">116</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> The Effect of Gas Pollutants on Museum Environment: Case Study of an Oil Paintings in Ethnographic Museum, Egypt</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hagar%20%20Ezzat">Hagar Ezzat</a>, <a href="https://publications.waset.org/abstracts/search?q=Mostafa%20%20Attia"> Mostafa Attia</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20%20Bedeir"> Ahmed Bedeir</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdelrazek%20%20Elnagger"> Abdelrazek Elnagger</a>, <a href="https://publications.waset.org/abstracts/search?q=Matija%20%20Strlic"> Matija Strlic</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Ethnographic Museum in Cairo- Egypt is a place of valuable collections (manuscripts, paintings, textiles and other ethnographic materials), the museum experiences serious neglecting with unacceptable display and storage conditions, the museum is located in Tahrir sq., which consider a high traffic area where pollution levels exceed the acceptable levels in museums. The materials used in manufacturing the display cases are expected to be source of many pollutants which affecting the sensitive oil paintings objects in the galleries. 24 diffusion tubes (12 No2, So2 & 12 O3) have been used in "winter 2014 and spring 2014" for monitoring museum environment with three cases "outdoor & indoor and in the gallery display". A series of analytical techniques with scientific tools: Ion Chromatography have been used to assess measurements and effects of gas pollutants on the museum which help us to make good assessment for the damage of oil paintings objects and the condition of the museum and understand the effect of the museum environment on the deterioration of the sensitive oil paintings. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=environment" title="environment">environment</a>, <a href="https://publications.waset.org/abstracts/search?q=museum" title=" museum"> museum</a>, <a href="https://publications.waset.org/abstracts/search?q=paintings" title=" paintings"> paintings</a>, <a href="https://publications.waset.org/abstracts/search?q=ethnographic" title=" ethnographic"> ethnographic</a>, <a href="https://publications.waset.org/abstracts/search?q=conservation" title=" conservation"> conservation</a> </p> <a href="https://publications.waset.org/abstracts/51332/the-effect-of-gas-pollutants-on-museum-environment-case-study-of-an-oil-paintings-in-ethnographic-museum-egypt" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/51332.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">241</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> Sliding Velocity in Impact with Friction in Three-Dimensional Multibody Systems</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hesham%20A.%20Elkaranshawy">Hesham A. Elkaranshawy</a>, <a href="https://publications.waset.org/abstracts/search?q=Amr%20Abdelrazek"> Amr Abdelrazek</a>, <a href="https://publications.waset.org/abstracts/search?q=Hosam%20Ezzat"> Hosam Ezzat</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper analyzes a single point rough collision in three dimensional rigid-multibody systems. A set of nonlinear different equations describing the progress and outcome of the impact are obtained. Specifically in case of the tangential, referred to as sliding, component of impact velocity is of great importance. Numerical methods are used to solve this problem. In this work, all these possible sliding behaviors during impact are identified, conditions leading to each behavior are specified, and an appropriate numerical procedure is suggested. A case of a four-degrees-of-freedom spatial robot that collides with its environment is investigated. The phase portrait of the tangential velocity, which presents the flow trajectories for different initial conditions, is calculated. Using the coefficient of friction as a control parameter, few phase portraits are drawn, each for a specific value of this coefficient. In addition, the bifurcation associated with the variation of this coefficient will be investigated. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=friction%20impact" title="friction impact">friction impact</a>, <a href="https://publications.waset.org/abstracts/search?q=three-dimensional%20rigid%20multibody%20systems" title=" three-dimensional rigid multibody systems"> three-dimensional rigid multibody systems</a>, <a href="https://publications.waset.org/abstracts/search?q=sliding%20velocity" title=" sliding velocity"> sliding velocity</a>, <a href="https://publications.waset.org/abstracts/search?q=nonlinear%20ordinary%20differential%20equations" title=" nonlinear ordinary differential equations"> nonlinear ordinary differential equations</a>, <a href="https://publications.waset.org/abstracts/search?q=phase%20portrait" title=" phase portrait"> phase portrait</a> </p> <a href="https://publications.waset.org/abstracts/44096/sliding-velocity-in-impact-with-friction-in-three-dimensional-multibody-systems" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/44096.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">381</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> Ergonomics: Solutions for the Prevention of Injuries</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Muhamad%20Ammar%20Bin%20Mohd%20Asri">Muhamad Ammar Bin Mohd Asri</a>, <a href="https://publications.waset.org/abstracts/search?q=Muhammad%20Hamizan%20Bin%20Yusof"> Muhammad Hamizan Bin Yusof</a>, <a href="https://publications.waset.org/abstracts/search?q=Muhammad%20Haziq%20Bin%20Abdul%20Khalil"> Muhammad Haziq Bin Abdul Khalil</a>, <a href="https://publications.waset.org/abstracts/search?q=Esman%20Hanief%20Bin%20Khairul%20Anuar"> Esman Hanief Bin Khairul Anuar</a>, <a href="https://publications.waset.org/abstracts/search?q=Muhammad%20Fikri%20Bin%20Ishak"> Muhammad Fikri Bin Ishak</a>, <a href="https://publications.waset.org/abstracts/search?q=Amril%20Azim%20Bin%20Mohd%20Norrahim"> Amril Azim Bin Mohd Norrahim</a>, <a href="https://publications.waset.org/abstracts/search?q=Muhammad%20Danial%20Fakhri%20Bin%20Fakhruddin"> Muhammad Danial Fakhri Bin Fakhruddin</a>, <a href="https://publications.waset.org/abstracts/search?q=Muhammad%20Khairul%20Nizam%20in%20Hosnodin"> Muhammad Khairul Nizam in Hosnodin</a>, <a href="https://publications.waset.org/abstracts/search?q=Muhammad%20Ezzat%20Hariz%20Bin%20Norhisam"> Muhammad Ezzat Hariz Bin Norhisam</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Ergonomics is the science of creating and arranging workplaces, products, and systems to increase human performance, comfort, and safety. This study researched ergonomics as a solution for preventing workplace injuries, specifically musculoskeletal disorders, among employers and employees. The method will be used in this project is a literature review which means conducting a study about ergonomics with peer-reviewed journal articles and books. It focuses on employees and employers who are in one company on other departments under the protection of Occupational Safety and Health (OSHA). These solutions include ergonomic assessments, workplace design improvements, effective training and education, and the use of ergonomic tools and equipment. Employers can build workplaces that are safer and more productive by putting these solutions in place, and employees can work comfortably and prevent accidents from bad ergonomics. Overall, the paper highlights how crucial it is to take injury prevention measures and consider ergonomics at work. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=occupational%20safety%20and%20health" title="occupational safety and health">occupational safety and health</a>, <a href="https://publications.waset.org/abstracts/search?q=musculoskeletal%20disorders" title=" musculoskeletal disorders"> musculoskeletal disorders</a>, <a href="https://publications.waset.org/abstracts/search?q=ergonomic" title=" ergonomic"> ergonomic</a>, <a href="https://publications.waset.org/abstracts/search?q=ergonomic%20risk" title=" ergonomic risk"> ergonomic risk</a> </p> <a href="https://publications.waset.org/abstracts/166691/ergonomics-solutions-for-the-prevention-of-injuries" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/166691.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">221</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> Metabolome-based Profiling of African Baobab Fruit (Adansonia Digitata L.) Using a Multiplex Approach of MS and NMR Techniques in Relation to Its Biological Activity</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Marwa%20T.%20Badawy">Marwa T. Badawy</a>, <a href="https://publications.waset.org/abstracts/search?q=Alaa%20F.%20Bakr"> Alaa F. Bakr</a>, <a href="https://publications.waset.org/abstracts/search?q=Nesrine%20Hegazi"> Nesrine Hegazi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20A.%20Farag"> Mohamed A. Farag</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Abdellatif"> Ahmed Abdellatif</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Diabetes Mellitus (DM) is a chronic disease affecting a large population worldwide. Africa is rich in native medicinal plants with myriad health benefits, though less explored towards the development of specific drug therapy as in diabetes. This study aims to determine the in vivo antidiabetic potential of the well-reported and traditionally used fruits of Baobab (Adansonia digitata L.) using STZ induced diabetic model. The in-vitro cytotoxic and antioxidant properties were examined using MTT assay on L-929 fibroblast cells and DPPH antioxidant assays, respectively. The extract showed minimal cytotoxicity with an IC50 value of 105.7 µg/mL. Histopathological and immunohistochemical investigations showed the hepatoprotective and the renoprotective effects of A. digitata fruits’ extract, implying its protective effects against diabetes complications. These findings were further supported by biochemical assays, which showed that i.p., injection of a low dose (150 mg/kg) of A. digitata twice a week lowered the fasting blood glucose levels, lipid profile, hepatic and renal markers. For a comprehensive overview of extract metabolites composition, ultrahigh performance (UHPLC) analysis coupled to high-resolution tandem mass spectrometry (HRMS/MS) in synchronization with molecular networks led to the annotation of 77 metabolites, among which 50% are reported for the first time in A. digitata fruits. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=adansonia%20digital" title="adansonia digital">adansonia digital</a>, <a href="https://publications.waset.org/abstracts/search?q=diabetes%20mellitus" title=" diabetes mellitus"> diabetes mellitus</a>, <a href="https://publications.waset.org/abstracts/search?q=metabolomics" title=" metabolomics"> metabolomics</a>, <a href="https://publications.waset.org/abstracts/search?q=streptozotocin" title=" streptozotocin"> streptozotocin</a>, <a href="https://publications.waset.org/abstracts/search?q=Sprague" title=" Sprague"> Sprague</a>, <a href="https://publications.waset.org/abstracts/search?q=dawley%20rats" title=" dawley rats"> dawley rats</a> </p> <a href="https://publications.waset.org/abstracts/143221/metabolome-based-profiling-of-african-baobab-fruit-adansonia-digitata-l-using-a-multiplex-approach-of-ms-and-nmr-techniques-in-relation-to-its-biological-activity" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/143221.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">164</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> Use of Cold In-Place Asphalt Mixtures Technique in Road Maintenance in Egypt</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohammed%20Mamdouh%20Mohammed">Mohammed Mamdouh Mohammed</a>, <a href="https://publications.waset.org/abstracts/search?q=Ali%20Zain%20Elabdeen%20Heikal"> Ali Zain Elabdeen Heikal</a>, <a href="https://publications.waset.org/abstracts/search?q=Hassan%20Mahdy"> Hassan Mahdy</a>, <a href="https://publications.waset.org/abstracts/search?q=Sherif%20El-Badawy"> Sherif El-Badawy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The main purpose of this research is to assess the effectiveness of the Cold In-Place Recycling (CIR) technique in asphalt maintenance by analyzing performance outcomes. To achieve this, fifteen CIR mixtures were prepared using slow-setting emulsified asphalt as the recycling agent, with percentages ranging from 2% to 4% in 0.5% increments. Additionally, pure water was incorporated in percentages ranging from 2% to 4% in 1% increments, and Portland cement was added at a constant content of 1%. The components were mixed at room temperature and subsequently compacted using a gyratory compactor with 150 gyrations. Prior to testing, the samples underwent a two-stage treatment process: initially, they were placed in an oven at 60°C for 48 hours, followed by a 24-hour period of air curing. The Hamburg wheel tracking test was performed to evaluate the samples’ resistance to rutting. Additionally, the Indirect Tensile Strength (ITS) test and the Semi-Circular Beam (SCB) test were conducted to assess their resistance to cracking. Upon analyzing the test results, it was observed that the samples’ resistance to rutting decreased with higher asphalt and moisture content. In contrast, ITS and SCB tests revealed that the samples’ resistance to cracking initially increased with higher asphalt and moisture content, peaking at a certain point, and then decreased, forming a bell-curve pattern. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cold%20in-place" title="cold in-place">cold in-place</a>, <a href="https://publications.waset.org/abstracts/search?q=indirect%20tensile%20strength" title=" indirect tensile strength"> indirect tensile strength</a>, <a href="https://publications.waset.org/abstracts/search?q=recycling" title=" recycling"> recycling</a>, <a href="https://publications.waset.org/abstracts/search?q=emulsified%20asphalt" title=" emulsified asphalt"> emulsified asphalt</a>, <a href="https://publications.waset.org/abstracts/search?q=semi-circular%20beam" title=" semi-circular beam"> semi-circular beam</a> </p> <a href="https://publications.waset.org/abstracts/194599/use-of-cold-in-place-asphalt-mixtures-technique-in-road-maintenance-in-egypt" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/194599.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">15</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> In vitro And in vivo Anticholinesterase Activity of the Volatile Oil of the Aerial Parts of Ocimum Basilicum L. and O. africanum Lour. Growing in Egypt</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mariane%20G.%20Tadros">Mariane G. Tadros</a>, <a href="https://publications.waset.org/abstracts/search?q=Shahira%20M.%20Ezzat"> Shahira M. Ezzat</a>, <a href="https://publications.waset.org/abstracts/search?q=Maha%20M.%20Salama"> Maha M. Salama</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20A.%20Farag"> Mohamed A. Farag</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, the in vitro anticholinesterase activity of the volatile oils of both O. basilicum and O. africanum was investigated and both samples showed significant activity. As a result, the major constituents of the two oils were isolated using several column chromatography. Linalool, 1,8-cineol and eugenol were isolated from the volatile oil of O. basilicum and camphor was isolated from the volatile oil of O. africanum. The anticholinesterase activity of the isolated compounds were also evaluated where 1,8-cineol showed the highest inhibitory activity followed by camphor. To confirm these activities, learning and memory enhancing effects were tested in mice. Memory impairment was induced by scopolamine, a cholinergic muscarinic receptor antagonist. Anti-amnesic effects of both volatile oils and their terpenoids were investigated by the passive avoidance task in mice. We also examined their effects on brain acetylcholinesterase activity. Results showed that scopolamine-induced cognitive dysfunction was significantly attenuated by administration of the volatile oils and their terpenoids, eugenol and camphor, in the passive avoidance task and inhibited brain acetylcholinesterase activity. These results suggest that O. basilicum and O. africanum volatile oils can be good candidates for further studies on Alzheimer’s disease via their acetylcholinesterase inhibitory actions. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ocimum%20baselicum" title="Ocimum baselicum">Ocimum baselicum</a>, <a href="https://publications.waset.org/abstracts/search?q=Ocimum%20africanum" title=" Ocimum africanum"> Ocimum africanum</a>, <a href="https://publications.waset.org/abstracts/search?q=GC%2FMS%20analysis" title=" GC/MS analysis"> GC/MS analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=anticholinesterase" title=" anticholinesterase"> anticholinesterase</a> </p> <a href="https://publications.waset.org/abstracts/4773/in-vitro-and-in-vivo-anticholinesterase-activity-of-the-volatile-oil-of-the-aerial-parts-of-ocimum-basilicum-l-and-o-africanum-lour-growing-in-egypt" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/4773.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">455</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> Patterns of Self-Medication with Over-the-Counter Pain Relievers (Acetaminophen, Ibuprofen, and Aspirin) among the Kuwaiti Population</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nabil%20Ahmed%20Kamal%20Badawy">Nabil Ahmed Kamal Badawy</a>, <a href="https://publications.waset.org/abstracts/search?q=Ali%20Falah%20Alhajraf"> Ali Falah Alhajraf</a>, <a href="https://publications.waset.org/abstracts/search?q=Mawaheb%20Falah%20Alsamdan"> Mawaheb Falah Alsamdan </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Objectives: To estimate the prevalence of self-medication with over-the-counter pain relievers (acetaminophen, ibuprofen, and aspirin) among Kuwaiti citizens above the age of 16 years old and describe their patterns of use, perceived awareness of, and concerns about the drugs’ potential side effects. Design: A descriptive cross-sectional questionnaire-based survey. Setting: Samples were selected from the six Kuwaiti governorates. Subjects: The data were collected over a four-month period in 2012, from 850 subjects who identified as Kuwaiti citizens. These subjects were recruited using stratified random sampling. Results: Overall, a 67% response rate was obtained. In total, 68% (573) of the respondents reported the use of over-the-counter pain relievers. Women, middle-aged or single individuals, and those who had completed higher education used these drugs more than any other subgroup (p<0.05). We found evidence of inappropriate use of these drugs, with 15% (88) of the consumers using them almost daily. Further, 19% (111) of the consumers exceeded the recommended dosage at least once. Not only were 81% of the consumers unaware of the potential side effects, but also more than 61% were not concerned about them. Women were more knowledgeable than men regarding the maximum dose (p=0.036, OR 1.49, CI 1.03–2.17). Consumers with higher levels of education did not show distinct knowledge regarding the maximum allowed dose of the drugs (p=0.252, OR 1.71, CI 0.68-4.25). Conclusion: The results showed a high prevalence of self-medication with over-the-counter pain relievers among Kuwaiti citizens. The subjects showed marked unawareness and a lack of concern regarding the potential complications resulting from the inappropriate use of these analgesics. This demonstrates the need for educational interventions directed toward both patients and health care workers. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=awareness%20of%20side%20effects" title="awareness of side effects">awareness of side effects</a>, <a href="https://publications.waset.org/abstracts/search?q=concern" title=" concern"> concern</a>, <a href="https://publications.waset.org/abstracts/search?q=patterns%20of%20use" title=" patterns of use"> patterns of use</a>, <a href="https://publications.waset.org/abstracts/search?q=prevalence" title=" prevalence "> prevalence </a> </p> <a href="https://publications.waset.org/abstracts/18644/patterns-of-self-medication-with-over-the-counter-pain-relievers-acetaminophen-ibuprofen-and-aspirin-among-the-kuwaiti-population" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/18644.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">500</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> Study of Circulatory MiR-122 and MiR-130a Expression among Chronic Hepatitis C Egyptian Patients</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hend%20K.%20Moosa">Hend K. Moosa</a>, <a href="https://publications.waset.org/abstracts/search?q=Eman%20A.%20Rashwan"> Eman A. Rashwan</a>, <a href="https://publications.waset.org/abstracts/search?q=Ezzat%20M.%20Hassan"> Ezzat M. Hassan</a>, <a href="https://publications.waset.org/abstracts/search?q=Amany%20A.%20Ghazy"> Amany A. Ghazy</a>, <a href="https://publications.waset.org/abstracts/search?q=Amel%20G.%20Sheredy"> Amel G. Sheredy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The stability of microRNA (miR) in the circulation can show a great progress toward the discovery of non-invasive diagnostic and prognostic biomarkers in many diseases. In the present study, circulatory miR-122 and miR-130a were analysed in chronic hepatitis C Egyptian patients in predicting the clinical outcome of interferon treatment. In addition, their expression levels were correlated to viral RNA levels, necro-inflammatory markers (AST, ALT) and to each other. This study was conducted on 51 subjects where 36 were chronic HCV patients in which they were divided into naive and interferon treated HCV patients (responders and non-responders) and 15 matched healthy controls. Serum quantification of miR-122 and miR-130a were performed by quantitative Real-time Polymerase Chain Reaction (qRT-PCR). The results showed a significant upregulation of miR-122 in non-responder patients (P=0.049). By receiver operating characteristic analysis curve, miR-122 revealed 65% sensitivity and 92.3% specificity in predicting non-responsiveness of patients to IFN treatment, while miR-130a showed a sensitivity of 100% and specificity of 53.85%. Remarkably, there was a significant positive correlation between miR-122 and miR-130a in naive HCV patients (r=0.714, p=0.003). However, there was no significant correlation between serum miR-122, miR-130a expression levels and necro-inflammatory markers (AST, ALT). To conclude, miR-122 and miR-130a have a significant association with viral RNA levels and accordingly, they may have a synergistic power in promoting viral replication. Interestingly, miR-122 and miR-130a have a predictive power in predicting clinical outcome of IFN treatment which can be further studied in currently used drugs in order to reduce the socio-economic burden of potentially non-responders. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hepatitis%20C" title="hepatitis C">hepatitis C</a>, <a href="https://publications.waset.org/abstracts/search?q=microRNA" title=" microRNA"> microRNA</a>, <a href="https://publications.waset.org/abstracts/search?q=miR-122" title=" miR-122"> miR-122</a>, <a href="https://publications.waset.org/abstracts/search?q=miR-130a" title=" miR-130a"> miR-130a</a> </p> <a href="https://publications.waset.org/abstracts/77630/study-of-circulatory-mir-122-and-mir-130a-expression-among-chronic-hepatitis-c-egyptian-patients" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/77630.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">170</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> Commercial Law Between Custom and Islamic Law</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Shimaa%20Abdel-Rahman%20Amin%20El-Badawy">Shimaa Abdel-Rahman Amin El-Badawy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Commercial law is the set of legal rules that apply to business and regulates the trade of trade. The meaning of this is that the commercial law regulates certain relations only that arises as a result of carrying out certain businesses. which are business, as it regulates the activity of a specific sect, the sect of merchants, and the commercial law as other branches of the law has characteristics that distinguish it from other laws and various, and various sources from which its basis is derived from It is the objective or material source. the historical source, the official source and the interpretative source, and we are limited to official sources and explanatory sources. so what do you see what these sources are, and what is their degree and strength in taking it in commercial disputes. The first topic / characteristics of commercial law. Commercial law has become necessary for the world of trade and economics, which cannot be dispensed with, given the reasons that have been set as legal rules for commercial field.In fact, it is sufficient to refer to the stability and stability of the environment, and in exchange for the movement and the speed in which the commercial environment is in addition to confidence and credit. the characteristic of speed and the characteristic of trust, and credit are the ones that justify the existence of commercial law.Business is fast, while civil business is slow, stable and stability. The person concludes civil transactions in his life only a little. And before doing any civil action. he must have a period of thinking and scrutiny, and the investigation is the person who wants the husband, he must have a period of thinking and scrutiny. as if the person who wants to acquire a house to live with with his family, he must search and investigate. Discuss the price before the conclusion of a purchase contract. In the commercial field, transactions take place very quickly because the time factor has an important role in concluding deals and achieving profits. This is because the merchant in contracting about a specific deal would cause a loss to the merchant due to the linkage of the commercial law with the fluctuations of the economy and the market. The merchant may also conclude more than one deal in one and short time. And that is due to the absence of commercial law from the formalities and procedures that hinder commercial transactions. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=law" title="law">law</a>, <a href="https://publications.waset.org/abstracts/search?q=commercial%20law" title=" commercial law"> commercial law</a>, <a href="https://publications.waset.org/abstracts/search?q=Islamic%20law" title=" Islamic law"> Islamic law</a>, <a href="https://publications.waset.org/abstracts/search?q=custom%20and%20Islamic%20law" title=" custom and Islamic law"> custom and Islamic law</a> </p> <a href="https://publications.waset.org/abstracts/170034/commercial-law-between-custom-and-islamic-law" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/170034.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">73</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> Seismic Activity and Groundwater Behavior at Kalabsha Area, Aswan, Egypt </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=S.%20M.%20Moustafa">S. M. Moustafa</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Ezzat"> A. Ezzat</a>, <a href="https://publications.waset.org/abstracts/search?q=Y.%20S.%20Taha"> Y. S. Taha</a>, <a href="https://publications.waset.org/abstracts/search?q=G.%20H.%20Hassib"> G. H. Hassib</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Hamada"> S. Hamada </a> </p> <p class="card-text"><strong>Abstract:</strong></p> After the occurrence of 14, Nov, 1981 earthquake (M = 5.3), on Kalabska fault, south of Egypt, seismic stations distributed in and around the Kalabsha area, in order to monitoring, recording and studying the seismic activity in the area. In addition of that, from 1989 a number of piezometer wells drilled in the same area, distribed on at the both side of the active faults area and in different water bearing formations, in order to measuring the groundwater parameters (level, temperature, ph, and conductivity) to monitoring the relationship between those parameters and the seismic activity at Kalabsha area. The behavior of groundwater due to seismic activity over the world studied by several scientists i.e. H. Wakita (1979) on Izu-Oshima earthquake (M= 7.0) at Japan, M. E. Contadakis & G.asteriadis (1972), and Evans (1966), they found an anomalies on groundwater measurements prior, co, and post the occurrence of bigger earthquakes, referring to the probability of precursory evidence of impending earthquakes. In Kalabsha area south of Egypt, this study has been done using recorded seismic data, and the measurements of underground water parameters. same phenomena of anomalies founded on groundwater measurements pre, co. and post the occurrence of earthquakes with magnitude bigger than 3, and no systematic regularity exists for epicenter distance, duration of anomalies or time lag between anomalies appear and occurrence of events. Also the results found present strong relation between the groundwater in the upper unconfined aquifer Nubian Sandstone formation, and Kalabsha seismic activity, otherwise no relation between the seismic activities in the area with the deep groundwater in the lower confined aquifer Sandstone. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=seismicity" title="seismicity">seismicity</a>, <a href="https://publications.waset.org/abstracts/search?q=groundwater" title=" groundwater"> groundwater</a>, <a href="https://publications.waset.org/abstracts/search?q=Aswan" title=" Aswan"> Aswan</a>, <a href="https://publications.waset.org/abstracts/search?q=Egypt" title=" Egypt"> Egypt</a> </p> <a href="https://publications.waset.org/abstracts/35761/seismic-activity-and-groundwater-behavior-at-kalabsha-area-aswan-egypt" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/35761.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">381</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> Evaluation of the Predatory Mites' Manner against Root-Knot Nematode Using Water Agar Technique</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdelrady%20K.%20Nasr">Abdelrady K. Nasr</a>, <a href="https://publications.waset.org/abstracts/search?q=Ezzat%20M.%20A.%20Noweer"> Ezzat M. A. Noweer</a>, <a href="https://publications.waset.org/abstracts/search?q=Mahmoud%20M.%20Ramadan"> Mahmoud M. Ramadan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The root-knot nematode, Meloidogyne incognita Kofoid and White (Tylenchida: Heteroderidae), is one of the most important plant-parasitic nematodes attacking large numbers of vegetable and fruit plants in Egypt. Moreover, the soil predatory mites (Protogamasellopsisdenticus (Nasr), Gaeolaelaps longus (Hafez, El-Badry and Nasr) and Cosmolaelapskeni(Hafez, El-Badry and Nasr) are one of the excellent agents for biocontrol, this study was designed to evaluate the predation of the root-knot nematode (M. incognita) using water agar technique. The water agar medium was used as an experimental medium to rear both the mentioned mites and egg masses; these media allowed observe the development and predacious manner. The present study revealed that the predatory mites successfully developed and reproduced their egg masses. The mean life cycle of the tested mites P. denticus, G. longus, and C.keni were 10.33, 12.00, and 9.77 days, respectively. The mean total life span of the female of P. denticus, G. longus, and C. keni on egg-mases of M. incognita were obtained 63.44, 77.55 and 70.11 days, respectively, and the mean total fecundity of predatory mites, P. denticus, G.longus, and C. keni on egg-mases nematode were observed 62.66, 31.61 and 11.83 eggs, respectively. The mean total number of eggs laid by female P. denticus was significantly higher than other predatory mites, G. longus and C. keni. According to the obtained results, the tested predacious mites can be applied to combat the spreading of M. incognita in the agriculture field as a safe and effective biological control. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=biological%20control" title="biological control">biological control</a>, <a href="https://publications.waset.org/abstracts/search?q=plant-parasitic%20nematodes" title=" plant-parasitic nematodes"> plant-parasitic nematodes</a>, <a href="https://publications.waset.org/abstracts/search?q=predaceous%20mites" title=" predaceous mites"> predaceous mites</a>, <a href="https://publications.waset.org/abstracts/search?q=water%20agar" title=" water agar"> water agar</a> </p> <a href="https://publications.waset.org/abstracts/174142/evaluation-of-the-predatory-mites-manner-against-root-knot-nematode-using-water-agar-technique" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/174142.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">79</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> Improve Student Performance Prediction Using Majority Vote Ensemble Model for Higher Education</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Wade%20Ghribi">Wade Ghribi</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdelmoty%20M.%20Ahmed"> Abdelmoty M. Ahmed</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Said%20Badawy"> Ahmed Said Badawy</a>, <a href="https://publications.waset.org/abstracts/search?q=Belgacem%20Bouallegue"> Belgacem Bouallegue</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In higher education institutions, the most pressing priority is to improve student performance and retention. Large volumes of student data are used in Educational Data Mining techniques to find new hidden information from students' learning behavior, particularly to uncover the early symptom of at-risk pupils. On the other hand, data with noise, outliers, and irrelevant information may provide incorrect conclusions. By identifying features of students' data that have the potential to improve performance prediction results, comparing and identifying the most appropriate ensemble learning technique after preprocessing the data, and optimizing the hyperparameters, this paper aims to develop a reliable students' performance prediction model for Higher Education Institutions. Data was gathered from two different systems: a student information system and an e-learning system for undergraduate students in the College of Computer Science of a Saudi Arabian State University. The cases of 4413 students were used in this article. The process includes data collection, data integration, data preprocessing (such as cleaning, normalization, and transformation), feature selection, pattern extraction, and, finally, model optimization and assessment. Random Forest, Bagging, Stacking, Majority Vote, and two types of Boosting techniques, AdaBoost and XGBoost, are ensemble learning approaches, whereas Decision Tree, Support Vector Machine, and Artificial Neural Network are supervised learning techniques. Hyperparameters for ensemble learning systems will be fine-tuned to provide enhanced performance and optimal output. The findings imply that combining features of students' behavior from e-learning and students' information systems using Majority Vote produced better outcomes than the other ensemble techniques. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=educational%20data%20mining" title="educational data mining">educational data mining</a>, <a href="https://publications.waset.org/abstracts/search?q=student%20performance%20prediction" title=" student performance prediction"> student performance prediction</a>, <a href="https://publications.waset.org/abstracts/search?q=e-learning" title=" e-learning"> e-learning</a>, <a href="https://publications.waset.org/abstracts/search?q=classification" title=" classification"> classification</a>, <a href="https://publications.waset.org/abstracts/search?q=ensemble%20learning" title=" ensemble learning"> ensemble learning</a>, <a href="https://publications.waset.org/abstracts/search?q=higher%20education" title=" higher education"> higher education</a> </p> <a href="https://publications.waset.org/abstracts/149220/improve-student-performance-prediction-using-majority-vote-ensemble-model-for-higher-education" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/149220.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">107</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> The Impact of Failure-tolerant Restaurant Culture on Curbing Employees’ Withdrawal Behavior: The Roles of Psychological Empowerment and Mindful Leadership</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Omar%20Alsetoohy">Omar Alsetoohy</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Ezzat"> Mohamed Ezzat</a>, <a href="https://publications.waset.org/abstracts/search?q=Mahmoud%20Abou%20Kamar"> Mahmoud Abou Kamar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The success of a restaurant or hotel depends very much on the quality and quantity of its human resources. Thus, establishing a competitive edge through human assets requires careful attention to the practices that best leverage these assets. Usually, hotel or restaurant employees recognize customer defection as an unfavorable or unpleasant occurrence associated with failure. These failures could be in handling, communication, learning, or encouragement. Besides, employees could be afraid of blame from their colleagues and managers, which prevents them from freely discussing these mistakes with them. Such behaviors, in turn, would push employees to withdraw from the workplace. However, we have a good knowledge of the leadership outcomes, but less is known about how and why these effects occur. Accordingly, mindful leaders usually analyze the causes and underlying mechanisms of failures for work improvement. However, despite the excessive literature in the field of leadership and employee behaviors, to date, no research studies had investigated the impact of a failure-tolerant restaurant culture on the employees’ withdrawal behaviors considering the moderating role of psychological empowerment and mindful leadership. Thus, this study seeks to investigate the impact of a failure-tolerant culture on the employees’ withdrawal behaviors in fast-food restaurants in Egypt considering the moderating effects of employee empowerment and mindful leaders. This study may contribute to the existing literature by filling the gap between failure-tolerant cultures and employee withdrawal behaviors in the hospitality literature. The study may also identify the best practices for restaurant operators and managers to deal with employees' failures as an improvement tool for their performance. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=failure-tolerant%20culture" title="failure-tolerant culture">failure-tolerant culture</a>, <a href="https://publications.waset.org/abstracts/search?q=employees%E2%80%99%20withdrawal%20behaviors%20psychological%20empowerment" title=" employees’ withdrawal behaviors psychological empowerment"> employees’ withdrawal behaviors psychological empowerment</a>, <a href="https://publications.waset.org/abstracts/search?q=mindful%20leadership" title=" mindful leadership"> mindful leadership</a>, <a href="https://publications.waset.org/abstracts/search?q=restaurants" title=" restaurants"> restaurants</a> </p> <a href="https://publications.waset.org/abstracts/162581/the-impact-of-failure-tolerant-restaurant-culture-on-curbing-employees-withdrawal-behavior-the-roles-of-psychological-empowerment-and-mindful-leadership" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/162581.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">108</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> Numerical Simulation of Axially Loaded to Failure Large Diameter Bored Pile </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Ezzat">M. Ezzat</a>, <a href="https://publications.waset.org/abstracts/search?q=Y.%20Zaghloul"> Y. Zaghloul</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20Sorour"> T. Sorour</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Hefny"> A. Hefny</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Eid"> M. Eid</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Ultimate capacity of large diameter bored piles is usually determined from pile loading tests as recommended by several international codes and foundation design standards. However, loading of this type of piles till achieving apparent failure is practically seldom. In this paper, numerical analyses are carried out to simulate load test of a large diameter bored pile performed at the location of Alzey highway bridge project (Germany). Test results of pile load settlement relationship till failure as well as results of the base and shaft resistances are available. Apparent failure was indicated in this test by the significant increase of the induced settlement during the last load increment applied on the pile head. Measurements of this pile load test are used to assess the quality of the numerical models investigated. Three different material soil models are implemented in the analyses: Mohr coulomb (MC), Soft soil (SS), and Modified Mohr coulomb (MMC). Very good agreement is obtained between the field measured settlement and the calculated settlement using the MMC model. Results of analysis showed also that the MMC constitutive model is superior to MC, and SS models in predicting the ultimate base and shaft resistances of the large diameter bored pile. After calibrating the numerical model, behavior of large diameter bored piles under axial loads is discussed and the formation of the plastic zone around the pile is explored. Results obtained showed that the plastic zone below the base of the pile at failure extended laterally to about four times the pile diameter and vertically to about three times the pile diameter. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ultimate%20capacity" title="ultimate capacity">ultimate capacity</a>, <a href="https://publications.waset.org/abstracts/search?q=large%20diameter%20bored%20piles" title=" large diameter bored piles"> large diameter bored piles</a>, <a href="https://publications.waset.org/abstracts/search?q=plastic%20zone" title=" plastic zone"> plastic zone</a>, <a href="https://publications.waset.org/abstracts/search?q=failure" title=" failure"> failure</a>, <a href="https://publications.waset.org/abstracts/search?q=pile%20load%20test" title=" pile load test"> pile load test</a> </p> <a href="https://publications.waset.org/abstracts/108010/numerical-simulation-of-axially-loaded-to-failure-large-diameter-bored-pile" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/108010.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">143</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8</span> Sustainable Use of Agricultural Waste to Enhance Food Security and Conserve the Environment</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20M.%20Tawfik">M. M. Tawfik</a>, <a href="https://publications.waset.org/abstracts/search?q=Ezzat%20M.%20Abd%20El%20Lateef"> Ezzat M. Abd El Lateef</a>, <a href="https://publications.waset.org/abstracts/search?q=B.%20B.%20Mekki"> B. B. Mekki</a>, <a href="https://publications.waset.org/abstracts/search?q=Amany%20A.%20Bahr"> Amany A. Bahr</a>, <a href="https://publications.waset.org/abstracts/search?q=Magda%20H.%20Mohamed"> Magda H. Mohamed</a>, <a href="https://publications.waset.org/abstracts/search?q=Gehan%20S.%20Bakhoom"> Gehan S. Bakhoom</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The rapid increase in the world’s population coupled by decrease the arable land per capita has resulted into an increased demand for food which has in turn led to the production of large amounts of agricultural wastes, both at the farmer, municipality and city levels. Agricultural wastes can be a valuable resource for improving food security. Unfortunately, agricultural wastes are likely to cause pollution to the environment or even harm to human health. This calls for increased public awareness on the benefits and potential hazards of agricultural wastes, especially in developing countries. Agricultural wastes (residual stalks, straw, leaves, roots, husks, shells etcetera) and animal waste (manures) are widely available, renewable and virtually free, hence they can be an important resource. They can be converted into heat, steam, charcoal, methanol, ethanol, bio diesel as well as raw materials (animal feed, composting, energy and biogas construction etcetera). agricultural wastes are likely to cause pollution to the environment or even harm to human health, if it is not used in a sustainable manner. Organic wastes could be considered an important source of biofertilizer for enhancing food security in the small holder farming communities that would not afford use of expensive inorganic fertilizers. Moreover, these organic wastes contain high levels of nitrogen, phosphorus, potassium, and organic matter important for improving nutrient status of soils in urban agriculture. Organic compost leading to improved crop yields and its nutritional values as compared with inorganic fertilization. This paper briefly reviews how agricultural wastes can be used to enhance food security and conserve the environment. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=agricultural%20waste" title="agricultural waste">agricultural waste</a>, <a href="https://publications.waset.org/abstracts/search?q=organic%20compost" title=" organic compost"> organic compost</a>, <a href="https://publications.waset.org/abstracts/search?q=environment" title=" environment"> environment</a>, <a href="https://publications.waset.org/abstracts/search?q=valuable%20resources" title=" valuable resources"> valuable resources</a> </p> <a href="https://publications.waset.org/abstracts/22402/sustainable-use-of-agricultural-waste-to-enhance-food-security-and-conserve-the-environment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/22402.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span 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