CINXE.COM

<!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: Heba Abdeen</title> <meta name="description" content="Search results for: Heba Abdeen"> <meta name="keywords" content="Heba Abdeen"> <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="Heba Abdeen" name="q" aria-label="Search"> <button class="btn btn-light my-2 my-sm-0" type="submit"><i class="fas fa-search"></i></button> </form> </div> <div class="collapse navbar-collapse mt-1" id="navbarMenu"> <ul class="navbar-nav ml-auto align-items-center" id="mainNavMenu"> <li class="nav-item"> <a class="nav-link" href="https://waset.org/conferences" title="Conferences in 2024/2025/2026">Conferences</a> </li> <li class="nav-item"> <a class="nav-link" href="https://waset.org/disciplines" title="Disciplines">Disciplines</a> </li> <li class="nav-item"> <a class="nav-link" href="https://waset.org/committees" rel="nofollow">Committees</a> </li> <li class="nav-item dropdown"> <a class="nav-link dropdown-toggle" href="#" id="navbarDropdownPublications" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"> Publications </a> <div class="dropdown-menu" aria-labelledby="navbarDropdownPublications"> <a class="dropdown-item" href="https://publications.waset.org/abstracts">Abstracts</a> <a class="dropdown-item" href="https://publications.waset.org">Periodicals</a> <a class="dropdown-item" href="https://publications.waset.org/archive">Archive</a> </div> </li> <li class="nav-item"> <a class="nav-link" href="https://waset.org/page/support" title="Support">Support</a> </li> </ul> </div> </div> </nav> </div> </header> <main> <div class="container mt-4"> <div class="row"> <div class="col-md-9 mx-auto"> <form method="get" action="https://publications.waset.org/abstracts/search"> <div id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="Heba Abdeen"> <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> 88</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Heba Abdeen</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">88</span> Effect of Low Level Laser on Healing of Congenital Septal Defects on Dogs</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hady%20Atef">Hady Atef</a>, <a href="https://publications.waset.org/abstracts/search?q=Zinab%20Helmy"> Zinab Helmy</a>, <a href="https://publications.waset.org/abstracts/search?q=Heba%20Abdeen"> Heba Abdeen</a>, <a href="https://publications.waset.org/abstracts/search?q=Mostafa%20Fadel"> Mostafa Fadel</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background and purpose: After the success of the first trials of this experiment which were done on rabbits, a new study were conducted on dogs to ensure the past results; in a step forward to use low-level LASER therapy in the treatment of congenital septal defects in infants. The aim of this study was to investigate the effect of low-level LASER irradiation on congenital septal defects in dogs. Subjects and Methodology: six male dogs who have congenital septal defects in their hearts -with age ranged 6-10 months- enrolled in this study for one and half months. They were assigned into two groups: Group (A): The study group consisted of 3 canine hearts who received routine animal care associated with LASER irradiation. Group (B): The control group consisted of 3 canine hearts who received only routine animal care. Sizes of the septal defects were measured for both groups at the beginning and after the end of the study. Results: There was a significant decrease in the size of the diameter of the congenital septal defect with the study group (percentage of improvement was 42.19%) when compared with control group. Conclusion: It was concluded that low-level LASER therapy can be considered as a promising therapy for congenital heart defects in animals and to be examined on children with similar congenital lesions after then. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=laser" title="laser">laser</a>, <a href="https://publications.waset.org/abstracts/search?q=congenital%20septal%20defects" title=" congenital septal defects"> congenital septal defects</a>, <a href="https://publications.waset.org/abstracts/search?q=dogs" title=" dogs"> dogs</a>, <a href="https://publications.waset.org/abstracts/search?q=infants" title=" infants"> infants</a> </p> <a href="https://publications.waset.org/abstracts/51648/effect-of-low-level-laser-on-healing-of-congenital-septal-defects-on-dogs" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/51648.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">280</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">87</span> Antioxidants Reveal Protection against the Biochemical Changes in Liver, Kidney, and Blood Profiles after Clindamycin/Ibuprofen Administration in Dental Patients</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Gouda%20K.%20Helal">Gouda K. Helal</a>, <a href="https://publications.waset.org/abstracts/search?q=Marwa%20I.%20Shabayek"> Marwa I. Shabayek</a>, <a href="https://publications.waset.org/abstracts/search?q=Heba%20A.%20El-Ramly"> Heba A. El-Ramly</a>, <a href="https://publications.waset.org/abstracts/search?q=Heba%20A.%20Awida"> Heba A. Awida</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The adverse effects of Clindamycin (Clind.) / Ibuprofen (Ibu.) combination on liver, kidney, blood elements and the significances of antioxidants (N-acetylcysteine and Zinc) against these effects were evaluated. The study includes: Group I; control n=30, Group II; patients on Clind.300mg/Ibu.400mg twice daily for a week n=30, Group III; patients on Clind.300mg/Ibu.400mg+N-acetylcysteine 200mg twice daily for a week n=15 and Group IV; patients on Clind.300mg/Ibu.400mg+Zinc50mg twice daily for a week n=15. Serum malondialdehyde (MDA), alanine transferase (ALT), aspartate transferase (AST), γ glutamyl transferase (GGT), creatinine, blood urea nitrogen (BUN) were measured. Applying one way ANOVA followed by Tuckey Kramer post test, Group II showed significant increase in ALT, AST, GGT, BUN and decrease in Hb, RBCs, platelets than Group I. Group III showed significant decrease in ALT, AST, GGT, BUN than Group II. Moreover, Group IV showed significant decrease in ALT, AST, GGT and increase in Hb, RBCs, and platelets than Group II. Conclusively, Adding Zinc or N-acetylcysteine buffer the oxidative stress and improve the therapeutic outcome of Clindamycin/Ibuprofen combination. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=clindamycin" title="clindamycin">clindamycin</a>, <a href="https://publications.waset.org/abstracts/search?q=ibuprofen" title=" ibuprofen"> ibuprofen</a>, <a href="https://publications.waset.org/abstracts/search?q=adverse%20effects" title=" adverse effects"> adverse effects</a>, <a href="https://publications.waset.org/abstracts/search?q=antioxidant" title=" antioxidant"> antioxidant</a>, <a href="https://publications.waset.org/abstracts/search?q=zinc" title=" zinc"> zinc</a>, <a href="https://publications.waset.org/abstracts/search?q=N-acetylcysteine" title=" N-acetylcysteine"> N-acetylcysteine</a> </p> <a href="https://publications.waset.org/abstracts/12505/antioxidants-reveal-protection-against-the-biochemical-changes-in-liver-kidney-and-blood-profiles-after-clindamycinibuprofen-administration-in-dental-patients" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/12505.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">383</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">86</span> Enhanced Arabic Semantic Information Retrieval System Based on Arabic Text Classification</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20Elsehemy">A. Elsehemy</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Abdeen"> M. Abdeen </a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20Nazmy"> T. Nazmy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Since the appearance of the Semantic web, many semantic search techniques and models were proposed to exploit the information in ontology to enhance the traditional keyword-based search. Many advances were made in languages such as English, German, French and Spanish. However, other languages such as Arabic are not fully supported yet. In this paper we present a framework for ontology based information retrieval for Arabic language. Our system consists of four main modules, namely query parser, indexer, search and a ranking module. Our approach includes building a semantic index by linking ontology concepts to documents, including an annotation weight for each link, to be used in ranking the results. We also augmented the framework with an automatic document categorizer, which enhances the overall document ranking. We have built three Arabic domain ontologies: Sports, Economic and Politics as example for the Arabic language. We built a knowledge base that consists of 79 classes and more than 1456 instances. The system is evaluated using the precision and recall metrics. We have done many retrieval operations on a sample of 40,316 documents with a size 320 MB of pure text. The results show that the semantic search enhanced with text classification gives better performance results than the system without classification. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Arabic%20text%20classification" title="Arabic text classification">Arabic text classification</a>, <a href="https://publications.waset.org/abstracts/search?q=ontology%20based%20retrieval" title=" ontology based retrieval"> ontology based retrieval</a>, <a href="https://publications.waset.org/abstracts/search?q=Arabic%20semantic%20web" title=" Arabic semantic web"> Arabic semantic web</a>, <a href="https://publications.waset.org/abstracts/search?q=information%20retrieval" title=" information retrieval"> information retrieval</a>, <a href="https://publications.waset.org/abstracts/search?q=Arabic%20ontology" title=" Arabic ontology"> Arabic ontology</a> </p> <a href="https://publications.waset.org/abstracts/34945/enhanced-arabic-semantic-information-retrieval-system-based-on-arabic-text-classification" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/34945.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">525</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">85</span> Locket Application</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Farah%20Al-Fityani">Farah Al-Fityani</a>, <a href="https://publications.waset.org/abstracts/search?q=Aljohara%20Alsowail"> Aljohara Alsowail</a>, <a href="https://publications.waset.org/abstracts/search?q=Shatha%20Bindawood"> Shatha Bindawood</a>, <a href="https://publications.waset.org/abstracts/search?q=Heba%20Balrbeah"> Heba Balrbeah</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Locket is a popular app that lets users share spontaneous photos with a close circle of friends. The app offers a unique way to stay connected with loved ones by allowing users to see glimpses of their day through photos displayed on a widget on their home screen. This summary outlines the process of developing an app like Locket, highlighting the importance of user privacy and security. It also details the findings of a study on user engagement with the Locket app, revealing positive sentiment towards its features and concept but also identifying areas for improvement. Overall, the summary portrays Locket as a successful app that is changing the way people connect on social media. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=locket" title="locket">locket</a>, <a href="https://publications.waset.org/abstracts/search?q=app" title=" app"> app</a>, <a href="https://publications.waset.org/abstracts/search?q=machine%20learning" title=" machine learning"> machine learning</a>, <a href="https://publications.waset.org/abstracts/search?q=connect" title=" connect"> connect</a> </p> <a href="https://publications.waset.org/abstracts/186439/locket-application" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/186439.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">46</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">84</span> Investigation of Heat Transfer by Natural Convection in an Open Channel</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mahmoud%20S.%20Ahmed">Mahmoud S. Ahmed</a>, <a href="https://publications.waset.org/abstracts/search?q=Hany%20A.%20Mohamed"> Hany A. Mohamed</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20A.%20Omara"> Mohamed A. Omara</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20F.%20Abdeen"> Mohamed F. Abdeen </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Experimental study of natural convection heat transfer inside smooth and rough surfaces of vertical and inclined equilateral triangular channels of different inclination angles with a uniformly heated surface are performed. The inclination angle is changed from 15º to 90º. Smooth and rough surface of average roughness (0.02 mm) are used and their effect on the heat transfer characteristics are studied. The local and average heat transfer coefficients and Nusselt number are obtained for smooth and rough channels at different heat flux values, different inclination angles and different Rayleigh numbers (Ra) 6.48 × 105 ≤ Ra ≤ 4.78 × 106. The results show that the local Nusselt number decreases with increase of axial distance from the lower end of the triangular channel to a point near the upper end of channel, and then, it slightly increases. Higher values of local Nusselt number for rough channel along the axial distance compared with the smooth channel. The average Nusselt number of rough channel is higher than that of smooth channel by about 8.1% for inclined case at θ = 45o and 10% for vertical case. The results obtained are correlated using dimensionless groups for both rough and smooth surfaces of the inclined and vertical triangular channels. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=natural%20heat%20transfer%20convection" title="natural heat transfer convection">natural heat transfer convection</a>, <a href="https://publications.waset.org/abstracts/search?q=constant%20heat%20flux" title=" constant heat flux"> constant heat flux</a>, <a href="https://publications.waset.org/abstracts/search?q=open%20channels" title=" open channels"> open channels</a>, <a href="https://publications.waset.org/abstracts/search?q=heat%20transfer" title=" heat transfer"> heat transfer</a> </p> <a href="https://publications.waset.org/abstracts/26024/investigation-of-heat-transfer-by-natural-convection-in-an-open-channel" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/26024.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">393</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">83</span> Performance Analysis of SAC-OCDMA System using Different Detectors </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Somaya%20A.%20Abd%20El%20Mottaleb">Somaya A. Abd El Mottaleb</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Abd%20El%20Aziz"> Ahmed Abd El Aziz</a>, <a href="https://publications.waset.org/abstracts/search?q=Heba%20A.%20Fayed"> Heba A. Fayed</a>, <a href="https://publications.waset.org/abstracts/search?q=Moustafa%20H.%20Aly">Moustafa H. Aly</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, we present the performance of spectral amplitude coding optical code division multiple access using different detectors at different transmission distances using single photodiode detection technique. Modified double weight codes are used as signature codes. Simulation results show that the system using avalanche photo detector can move distance longer than that using positive intrinsic negative photo detector. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=avalanche%20photodiode" title="avalanche photodiode">avalanche photodiode</a>, <a href="https://publications.waset.org/abstracts/search?q=modified%20double%20weight" title=" modified double weight"> modified double weight</a>, <a href="https://publications.waset.org/abstracts/search?q=multiple%20access%20technique" title=" multiple access technique"> multiple access technique</a>, <a href="https://publications.waset.org/abstracts/search?q=single%20photodiode." title=" single photodiode. "> single photodiode. </a> </p> <a href="https://publications.waset.org/abstracts/12035/performance-analysis-of-sac-ocdma-system-using-different-detectors" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/12035.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">605</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">82</span> A Secure Digital Signature Scheme with Fault Tolerance Based on the Improved RSA System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=H.%20El-Kamchouchi">H. El-Kamchouchi</a>, <a href="https://publications.waset.org/abstracts/search?q=Heba%20Gaber"> Heba Gaber</a>, <a href="https://publications.waset.org/abstracts/search?q=Fatma%20Ahmed"> Fatma Ahmed</a>, <a href="https://publications.waset.org/abstracts/search?q=Dalia%20H.%20El-Kamchouchi"> Dalia H. El-Kamchouchi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Fault tolerance and data security are two important issues in modern communication systems. In this paper, we propose a secure and efficient digital signature scheme with fault tolerance based on the improved RSA system. The proposed scheme for the RSA cryptosystem contains three prime numbers and overcome several attacks possible on RSA. By using the Chinese Reminder Theorem (CRT) the proposed scheme has a speed improvement on the RSA decryption side and it provides high security also. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=digital%20signature" title="digital signature">digital signature</a>, <a href="https://publications.waset.org/abstracts/search?q=fault%20tolerance" title=" fault tolerance"> fault tolerance</a>, <a href="https://publications.waset.org/abstracts/search?q=RSA" title=" RSA"> RSA</a>, <a href="https://publications.waset.org/abstracts/search?q=security%20analysis" title=" security analysis"> security analysis</a> </p> <a href="https://publications.waset.org/abstracts/51269/a-secure-digital-signature-scheme-with-fault-tolerance-based-on-the-improved-rsa-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/51269.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">476</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">81</span> The Impact of Varying the Detector and Modulation Types on Inter Satellite Link (ISL) Realizing the Allowable High Data Rate</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Asmaa%20Zaki%20M.">Asmaa Zaki M.</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Abd%20El%20Aziz"> Ahmed Abd El Aziz</a>, <a href="https://publications.waset.org/abstracts/search?q=Heba%20A.%20Fayed"> Heba A. Fayed</a>, <a href="https://publications.waset.org/abstracts/search?q=Moustafa%20H.%20Aly"> Moustafa H. Aly</a> </p> <p class="card-text"><strong>Abstract:</strong></p> ISLs are the most popular choice for deep space communications because these links are attractive alternatives to present day microwave links. This paper explored the allowable high data rate in this link over different orbits, which is affected by variation in modulation scheme and detector type. Moreover, the objective of this paper is to optimize and analyze the performance of ISL in terms of Q-factor and Minimum Bit Error Rate (Min-BER) based on different detectors comprising some parameters. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=free%20space%20optics%20%28FSO%29" title="free space optics (FSO)">free space optics (FSO)</a>, <a href="https://publications.waset.org/abstracts/search?q=field%20of%20view%20%28FOV%29" title=" field of view (FOV)"> field of view (FOV)</a>, <a href="https://publications.waset.org/abstracts/search?q=inter%20satellite%20link%20%28ISL%29" title=" inter satellite link (ISL)"> inter satellite link (ISL)</a>, <a href="https://publications.waset.org/abstracts/search?q=optical%20wireless%20communication%20%28OWC%29" title=" optical wireless communication (OWC) "> optical wireless communication (OWC) </a> </p> <a href="https://publications.waset.org/abstracts/1928/the-impact-of-varying-the-detector-and-modulation-types-on-inter-satellite-link-isl-realizing-the-allowable-high-data-rate" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/1928.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">397</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">80</span> Improving Listening Comprehension for EFL Pre-Intermediate Students through a Blended Learning Strategy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Heba%20Mustafa%20Abdullah">Heba Mustafa Abdullah</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The research aimed at examining the effect of using a suggested blended learning (BL) strategy on developing EFL pre- intermediate students. The study adopted the quasi-experimental design. The sample of the research consisted of a group of 26 EFL pre- intermediate students. Tools of the study included a listening comprehension checklist and a pre-post listening comprehension test. Results were discussed in relation to several factors that affected the language learning process. Finally, the research provided beneficial contributions in relation to manipulating BL strategy with respect to language learning process in general and oral language learning in particular. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=blended%20learning" title="blended learning">blended learning</a>, <a href="https://publications.waset.org/abstracts/search?q=english%20as%20a%20foreign%20language" title=" english as a foreign language"> english as a foreign language</a>, <a href="https://publications.waset.org/abstracts/search?q=listening%20comprehension" title=" listening comprehension"> listening comprehension</a>, <a href="https://publications.waset.org/abstracts/search?q=oral%20language%20instruction" title=" oral language instruction"> oral language instruction</a> </p> <a href="https://publications.waset.org/abstracts/35749/improving-listening-comprehension-for-efl-pre-intermediate-students-through-a-blended-learning-strategy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/35749.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">561</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">79</span> Enhancing Functional Properties of Sport Wears Interlock Fabrics by Mercerization</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Manar%20Y.%20Abd%20El-Aziz">Manar Y. Abd El-Aziz</a>, <a href="https://publications.waset.org/abstracts/search?q=Alyaa%20E.%20Morgham"> Alyaa E. Morgham</a>, <a href="https://publications.waset.org/abstracts/search?q=Amira%20A.%20El-Fallal"> Amira A. El-Fallal</a>, <a href="https://publications.waset.org/abstracts/search?q=Heba%20Tolla%20E.%20Abo%20El%20Naga"> Heba Tolla E. Abo El Naga</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Sport wears almost preferred with knitted fabrics, specially interlock construction. But, there is a need for higher comfortability and functional properties for fabrics to be more fitted to this application. This study compared cotton and polyester microfibers and blended them to improve the functional activity of interlock in sport wear by mercerized and non-mercerized. also, fabric dyeing and dyeability are affected by mercerization. Many functional properties, such as UV protection as well as antimicrobial activity. The changes in different mechanical as well as physical properties were investigated. The washing fastness properties of the dyed fabrics are also given. The changes in moisture regain, loss in weight, and burst and burst elongation for all mercerized fabrics have been studied. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=interlock" title="interlock">interlock</a>, <a href="https://publications.waset.org/abstracts/search?q=mercirization" title=" mercirization"> mercirization</a>, <a href="https://publications.waset.org/abstracts/search?q=dyeability" title=" dyeability"> dyeability</a>, <a href="https://publications.waset.org/abstracts/search?q=function%20properties" title=" function properties"> function properties</a>, <a href="https://publications.waset.org/abstracts/search?q=moisture%20management" title=" moisture management"> moisture management</a> </p> <a href="https://publications.waset.org/abstracts/173474/enhancing-functional-properties-of-sport-wears-interlock-fabrics-by-mercerization" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/173474.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">81</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">78</span> Implementing Fault Tolerance with Proxy Signature on the Improvement of RSA System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=H.%20El-Kamchouchi">H. El-Kamchouchi</a>, <a href="https://publications.waset.org/abstracts/search?q=Heba%20Gaber"> Heba Gaber</a>, <a href="https://publications.waset.org/abstracts/search?q=Fatma%20Ahmed"> Fatma Ahmed</a>, <a href="https://publications.waset.org/abstracts/search?q=Dalia%20H.%20El-Kamchouchi"> Dalia H. El-Kamchouchi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Fault tolerance and data security are two important issues in modern communication systems. During the transmission of data between the sender and receiver, errors may occur frequently. Therefore, the sender must re-transmit the data to the receiver in order to correct these errors, which makes the system very feeble. To improve the scalability of the scheme, we present a proxy signature scheme with fault tolerance over an efficient and secure authenticated key agreement protocol based on the improved RSA system. Authenticated key agreement protocols have an important role in building a secure communications network between the two parties. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=fault%20tolerance" title="fault tolerance">fault tolerance</a>, <a href="https://publications.waset.org/abstracts/search?q=improved%20RSA" title=" improved RSA"> improved RSA</a>, <a href="https://publications.waset.org/abstracts/search?q=key%20agreement" title=" key agreement"> key agreement</a>, <a href="https://publications.waset.org/abstracts/search?q=proxy%20signature" title=" proxy signature"> proxy signature</a> </p> <a href="https://publications.waset.org/abstracts/51456/implementing-fault-tolerance-with-proxy-signature-on-the-improvement-of-rsa-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/51456.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">425</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">77</span> Real Activities Manipulation vs. Accrual Earnings Management: The Effect of Political Risk</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Heba%20Abdelmotaal">Heba Abdelmotaal</a>, <a href="https://publications.waset.org/abstracts/search?q=Magdy%20Abdel-Kader"> Magdy Abdel-Kader</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Purpose: This study explores whether a firm’s effective political risk management is preventing real and accrual earnings management . Design/methodology/approach: Based on a sample of 130 firms operating in Egypt during the period 2008-2013, two hypotheses are tested using the panel data regression models. Findings: The empirical findings indicate a significant relation between real and accrual earnings management and political risk. Originality/value: This paper provides a statistically evidence on the effects of the political risk management failure on the mangers’ engagement in the real and accrual earnings management practices, and its impact on the firm’s performance. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=political%20risk" title="political risk">political risk</a>, <a href="https://publications.waset.org/abstracts/search?q=risk%20management%20failure" title=" risk management failure"> risk management failure</a>, <a href="https://publications.waset.org/abstracts/search?q=real%20activities%20manipulation" title=" real activities manipulation"> real activities manipulation</a>, <a href="https://publications.waset.org/abstracts/search?q=accrual%20earnings%20management" title=" accrual earnings management"> accrual earnings management</a> </p> <a href="https://publications.waset.org/abstracts/32461/real-activities-manipulation-vs-accrual-earnings-management-the-effect-of-political-risk" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/32461.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">439</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">76</span> An Efficient Proxy Signature Scheme Over a Secure Communications Network</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=H.%20El-Kamchouchi">H. El-Kamchouchi</a>, <a href="https://publications.waset.org/abstracts/search?q=Heba%20Gaber"> Heba Gaber</a>, <a href="https://publications.waset.org/abstracts/search?q=Fatma%20Ahmed"> Fatma Ahmed</a>, <a href="https://publications.waset.org/abstracts/search?q=Dalia%20H.%20El-Kamchouchi"> Dalia H. El-Kamchouchi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Proxy signature scheme permits an original signer to delegate his/her signing capability to a proxy signer, and then the proxy signer generates a signing message on behalf of the original signer. The two parties must be able to authenticate one another and agree on a secret encryption key, in order to communicate securely over an unreliable public network. Authenticated key agreement protocols have an important role in building secure communications network between the two parties. In this paper, we present a secure proxy signature scheme over an efficient and secure authenticated key agreement protocol based on the discrete logarithm problem. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=proxy%20signature" title="proxy signature">proxy signature</a>, <a href="https://publications.waset.org/abstracts/search?q=warrant%20partial%20delegation" title=" warrant partial delegation"> warrant partial delegation</a>, <a href="https://publications.waset.org/abstracts/search?q=key%20agreement" title=" key agreement"> key agreement</a>, <a href="https://publications.waset.org/abstracts/search?q=discrete%20logarithm" title=" discrete logarithm"> discrete logarithm</a> </p> <a href="https://publications.waset.org/abstracts/51599/an-efficient-proxy-signature-scheme-over-a-secure-communications-network" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/51599.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">345</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">75</span> High Frequency Sonochemistry: A New Field of Cavitation‐Free Acoustic Materials Synthesis and Manipulation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Amgad%20Rezk">Amgad Rezk</a>, <a href="https://publications.waset.org/abstracts/search?q=Heba%20Ahmed"> Heba Ahmed</a>, <a href="https://publications.waset.org/abstracts/search?q=Leslie%20Yeo"> Leslie Yeo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Ultrasound presents a powerful means for material synthesis. In this talk, we showcase a new field demonstrating the possibility for harnessing sound energy sources at considerably higher frequencies (10 MHz to 1 GHz) compared to conventional ultrasound (kHz and up to ~2 MHz) for crystalising and manipulating a variety of nanoscale materials. At these frequencies, cavitation—which underpins most sonochemical processes—is largely absent, suggesting that altogether fundamentally different mechanisms are at dominant. Examples include the crystallization of highly oriented structures, quasi-2D metal-organic frameworks and nanocomposites. These fascinating examples reveal how the highly nonlinear electromechanical coupling associated with high-frequency surface vibration gives rise to molecular ordering and assembly on the nano and microscale. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=high-frequency%20acoustics" title="high-frequency acoustics">high-frequency acoustics</a>, <a href="https://publications.waset.org/abstracts/search?q=microfluidics" title=" microfluidics"> microfluidics</a>, <a href="https://publications.waset.org/abstracts/search?q=crystallisation" title=" crystallisation"> crystallisation</a>, <a href="https://publications.waset.org/abstracts/search?q=composite%20nanomaterials" title=" composite nanomaterials"> composite nanomaterials</a> </p> <a href="https://publications.waset.org/abstracts/147372/high-frequency-sonochemistry-a-new-field-of-cavitationfree-acoustic-materials-synthesis-and-manipulation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/147372.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">121</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">74</span> Reducing Inventory Costs by Reducing Inventory Levels: Kuwait Flour Mills and Bakeries Company</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Dana%20Al-Qattan">Dana Al-Qattan</a>, <a href="https://publications.waset.org/abstracts/search?q=Faiza%20Goodarzi"> Faiza Goodarzi</a>, <a href="https://publications.waset.org/abstracts/search?q=Heba%20Al-Resheedan"> Heba Al-Resheedan</a>, <a href="https://publications.waset.org/abstracts/search?q=Kawther%20Shehab"> Kawther Shehab</a>, <a href="https://publications.waset.org/abstracts/search?q=Shoug%20Al-Ansari"> Shoug Al-Ansari</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This project involves working with different types of forecasting methods and facility planning tools to help the company we have chosen to improve and reduce its inventory, increase its sales, and decrease its wastes and losses. The methods that have been used by the company have shown no improvement in decreasing the annual losses. The research made in the company has shown that no interest has been made in exploring different techniques to help the company. In this report, we introduce several methods and techniques that will help the company make more accurate forecasts and use of the available space efficiently. We expect our approach to reduce costs without affecting the quality of the product, and hence making production more viable. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=production%20planning" title="production planning">production planning</a>, <a href="https://publications.waset.org/abstracts/search?q=inventory%20management" title=" inventory management"> inventory management</a>, <a href="https://publications.waset.org/abstracts/search?q=inventory%20control" title=" inventory control"> inventory control</a>, <a href="https://publications.waset.org/abstracts/search?q=simulation" title=" simulation"> simulation</a>, <a href="https://publications.waset.org/abstracts/search?q=facility%20planning%20and%20design" title=" facility planning and design"> facility planning and design</a>, <a href="https://publications.waset.org/abstracts/search?q=engineering%20economy%20and%20costs" title=" engineering economy and costs"> engineering economy and costs</a> </p> <a href="https://publications.waset.org/abstracts/9187/reducing-inventory-costs-by-reducing-inventory-levels-kuwait-flour-mills-and-bakeries-company" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/9187.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">570</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">73</span> A Secure Proxy Signature Scheme with Fault Tolerance Based on RSA System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=H.%20El-Kamchouchi">H. El-Kamchouchi</a>, <a href="https://publications.waset.org/abstracts/search?q=Heba%20Gaber"> Heba Gaber</a>, <a href="https://publications.waset.org/abstracts/search?q=Fatma%20Ahmed"> Fatma Ahmed</a>, <a href="https://publications.waset.org/abstracts/search?q=Dalia%20H.%20El-Kamchouchi"> Dalia H. El-Kamchouchi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Due to the rapid growth in modern communication systems, fault tolerance and data security are two important issues in a secure transaction. During the transmission of data between the sender and receiver, errors may occur frequently. Therefore, the sender must re-transmit the data to the receiver in order to correct these errors, which makes the system very feeble. To improve the scalability of the scheme, we present a secure proxy signature scheme with fault tolerance over an efficient and secure authenticated key agreement protocol based on RSA system. Authenticated key agreement protocols have an important role in building a secure communications network between the two parties. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=proxy%20signature" title="proxy signature">proxy signature</a>, <a href="https://publications.waset.org/abstracts/search?q=fault%20tolerance" title=" fault tolerance"> fault tolerance</a>, <a href="https://publications.waset.org/abstracts/search?q=rsa" title=" rsa"> rsa</a>, <a href="https://publications.waset.org/abstracts/search?q=key%20agreement%20protocol" title=" key agreement protocol"> key agreement protocol</a> </p> <a href="https://publications.waset.org/abstracts/51452/a-secure-proxy-signature-scheme-with-fault-tolerance-based-on-rsa-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/51452.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">286</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">72</span> Photocatalytic Conversion of Water/Methanol Mixture into Hydrogen Using Cerium/Iron Oxides Based Structures</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Wael%20A.%20Aboutaleb">Wael A. Aboutaleb</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20M.%20A.%20El%20Naggar"> Ahmed M. A. El Naggar</a>, <a href="https://publications.waset.org/abstracts/search?q=Heba%20M.%20Gobara"> Heba M. Gobara</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This research work reports the photocatalytic production of hydrogen from water-methanol mixture using three different 15% ceria/iron oxide catalysts. The catalysts were prepared by physical mixing, precipitation, and ultrasonication methods and labeled as catalysts A-C. The structural and texture properties of the obtained catalysts were confirmed by X-ray diffraction (XRD), BET-surface area analysis and transmission electron microscopy (TEM). The photocatalytic activity of the three catalysts towards hydrogen generation was then tested. Promising hydrogen productivity was obtained by the three catalysts however different gases compositions were obtained by each type of catalyst. Specifically, catalyst A had produced hydrogen mixed with CO₂ while the composite structure (catalyst B) had generated only pure H₂. In the case of catalyst C, syngas made of H₂ and CO was revealed, as a novel product, for the first time, in such process. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hydrogen%20production" title="hydrogen production">hydrogen production</a>, <a href="https://publications.waset.org/abstracts/search?q=water%20splitting" title=" water splitting"> water splitting</a>, <a href="https://publications.waset.org/abstracts/search?q=photocatalysts" title=" photocatalysts"> photocatalysts</a>, <a href="https://publications.waset.org/abstracts/search?q=clean%20energy" title=" clean energy "> clean energy </a> </p> <a href="https://publications.waset.org/abstracts/82416/photocatalytic-conversion-of-watermethanol-mixture-into-hydrogen-using-ceriumiron-oxides-based-structures" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/82416.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">240</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">71</span> Secure Proxy Signature Based on Factoring and Discrete Logarithm</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=H.%20El-Kamchouchi">H. El-Kamchouchi</a>, <a href="https://publications.waset.org/abstracts/search?q=Heba%20Gaber"> Heba Gaber</a>, <a href="https://publications.waset.org/abstracts/search?q=Fatma%20Ahmed"> Fatma Ahmed</a>, <a href="https://publications.waset.org/abstracts/search?q=Dalia%20H.%20El-Kamchouchi"> Dalia H. El-Kamchouchi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A digital signature is an electronic signature form used by an original signer to sign a specific document. When the original signer is not in his office or when he/she travels outside, he/she delegates his signing capability to a proxy signer and then the proxy signer generates a signing message on behalf of the original signer. The two parties must be able to authenticate one another and agree on a secret encryption key, in order to communicate securely over an unreliable public network. Authenticated key agreement protocols have an important role in building a secure communications network between the two parties. In this paper, we present a secure proxy signature scheme over an efficient and secure authenticated key agreement protocol based on factoring and discrete logarithm problem. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=discrete%20logarithm" title="discrete logarithm">discrete logarithm</a>, <a href="https://publications.waset.org/abstracts/search?q=factoring" title=" factoring"> factoring</a>, <a href="https://publications.waset.org/abstracts/search?q=proxy%20signature" title=" proxy signature"> proxy signature</a>, <a href="https://publications.waset.org/abstracts/search?q=key%20agreement" title=" key agreement"> key agreement</a> </p> <a href="https://publications.waset.org/abstracts/51597/secure-proxy-signature-based-on-factoring-and-discrete-logarithm" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/51597.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">308</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">70</span> Enhanced Bit Error Rate in Visible Light Communication: A New LED Hexagonal Array Distribution</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Karim%20Matter">Karim Matter</a>, <a href="https://publications.waset.org/abstracts/search?q=Heba%20Fayed"> Heba Fayed</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Abd-Elaziz"> Ahmed Abd-Elaziz</a>, <a href="https://publications.waset.org/abstracts/search?q=Moustafa%20Hussein"> Moustafa Hussein</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Due to the exponential growth of mobile devices and wireless services, a huge demand for radiofrequency has increased. The presence of several frequencies causes interference between cells, which must be minimized to get the lower Bit Error Rate (BER). For this reason, it is of great interest to use visible light communication (VLC). This paper suggests a VLC system that decreases the BER by applying a new LED distribution with a hexagonal shape using a Frequency Reuse (FR) concept to mitigate the interference between the reused frequencies inside the hexagonal shape. The BER is measured in two scenarios, Line of Sight (LoS) and Non-Line of Sight (Non-LoS), for each technique that we used. The recommended values of BER in the proposed model for Soft Frequency Reuse (SFR) in the case of Los at 4, 8, and 10 dB signal to noise ratio (SNR), are 3.6×10⁻⁶, 6.03×10⁻¹³, and 2.66×10⁻¹⁸, respectively. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=visible%20light%20communication%20%28VLC%29" title="visible light communication (VLC)">visible light communication (VLC)</a>, <a href="https://publications.waset.org/abstracts/search?q=field%20of%20view%20%28FoV%29" title=" field of view (FoV)"> field of view (FoV)</a>, <a href="https://publications.waset.org/abstracts/search?q=hexagonal%20array" title=" hexagonal array"> hexagonal array</a>, <a href="https://publications.waset.org/abstracts/search?q=frequency%20reuse" title=" frequency reuse"> frequency reuse</a> </p> <a href="https://publications.waset.org/abstracts/146526/enhanced-bit-error-rate-in-visible-light-communication-a-new-led-hexagonal-array-distribution" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/146526.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">160</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">69</span> Developing EFL Research Skills of Pre-Master Students through a Suggested Quest Based Learning Strategy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Heba%20Mustafa%20Abdullah">Heba Mustafa Abdullah</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The research aimed at examining the effect of a using a quest based learning strategy on developing EFL Pre-Master Students. The study adopted the quasi-experimental design. The sample of the research consists of a group of 30 students enrolled in Pre-Master program, Curriculum and EFL Instruction Department, Faculty of Graduate Studies in Education Tools of the study included a EFL research skills checklist and EFL research skills test. Results revealed that there were statistically significant differences at 0.01 levels with regard to some research skills. Results were discussed in relation to several factors that affected the language learning process. Finally, the research provided beneficial contributions in relation to manipulating e-learning technologies in general and Quest based learning strategy in particular with respect to EFL research skills. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=English%20as%20foreign%20language" title="English as foreign language">English as foreign language</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=research%20skills" title=" research skills"> research skills</a>, <a href="https://publications.waset.org/abstracts/search?q=quest%20based%20learning" title=" quest based learning"> quest based learning</a> </p> <a href="https://publications.waset.org/abstracts/35747/developing-efl-research-skills-of-pre-master-students-through-a-suggested-quest-based-learning-strategy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/35747.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">444</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">68</span> The Efficiency of Cytochrome Oxidase Subunit 1 Gene (cox1) in Reconstruction of Phylogenetic Relations among Some Crustacean Species</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yasser%20M.%20Saad">Yasser M. Saad</a>, <a href="https://publications.waset.org/abstracts/search?q=Heba%20El-Sebaie%20Abd%20El-Sadek"> Heba El-Sebaie Abd El-Sadek</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Some <em>Metapenaeus monoceros</em><em> cox1</em> gene fragments were isolated, purified, sequenced, and comparatively analyzed with some other Crustacean <em>Cox1</em> gene sequences (obtained from National Center for Biotechnology Information). This work was designed for testing the efficiency of this system in reconstruction of phylogenetic relations among some Crustacean species belonging to four genera (Metapenaeus, Artemia, Daphnia and Calanus)<em>.</em> The single nucleotide polymorphism and haplotype diversity were calculated for all estimated mt-DNA fragments. The genetic distance values were 0.292, 0.015, 0.151, and 0.09 within <em>Metapenaeus </em>species<em>, Calanus</em> species<em>, Artemia</em> species, and<em> Daphnia</em> species, respectively<em>. </em>The reconstructed phylogenetic tree is clustered into some unique clades. Cytochrome oxidase subunit 1 gene (<em>cox1</em>) was a powerful system in reconstruction of phylogenetic relations among evaluated crustacean species. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=crustaceans" title="crustaceans">crustaceans</a>, <a href="https://publications.waset.org/abstracts/search?q=genetics" title=" genetics"> genetics</a>, <a href="https://publications.waset.org/abstracts/search?q=Cox1" title=" Cox1"> Cox1</a>, <a href="https://publications.waset.org/abstracts/search?q=phylogeny" title=" phylogeny"> phylogeny</a> </p> <a href="https://publications.waset.org/abstracts/73884/the-efficiency-of-cytochrome-oxidase-subunit-1-gene-cox1-in-reconstruction-of-phylogenetic-relations-among-some-crustacean-species" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/73884.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">362</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">67</span> Diagnostic Evaluation of Urinary Angiogenin (ANG) and Clusterin (CLU) as Biomarker for Bladder Cancer</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Marwa%20I.%20Shabayek">Marwa I. Shabayek</a>, <a href="https://publications.waset.org/abstracts/search?q=Ola%20A.%20Said"> Ola A. Said</a>, <a href="https://publications.waset.org/abstracts/search?q=Hanan%20A.%20Attaia"> Hanan A. Attaia</a>, <a href="https://publications.waset.org/abstracts/search?q=Heba%20A.%20Awida"> Heba A. Awida</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Bladder carcinoma is an important worldwide health problem. Both cystoscopy and urine cytology used in detecting bladder cancer suffer from drawbacks where cystoscopy is an invasive method and urine cytology shows low sensitivity in low grade tumors. This study validates easier and less time-consuming techniques to evaluate the value of combined use of angiogenin and clusterin in comparison and combination with voided urine cytology in the detection of bladder cancer patients. This study includes malignant (bladder cancer patients, n= 50), benign (n=20), and healthy (n=20) groups. The studied groups were subjected to cystoscopic examination, detection of bilharzial antibodies, urine cytology, and estimation of urinary angiogenin and clusterin by ELISA. The overall sensitivity and specifcity were 66% and 75% for angiogenin, 70% and 82.5% for clusterin and 46% and 80% for voided urine cytology. Combined sensitivity of angiogenin and clusterin with urine cytology increased from 82 to 88%. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=angiogenin" title="angiogenin">angiogenin</a>, <a href="https://publications.waset.org/abstracts/search?q=bladder%20cancer" title=" bladder cancer"> bladder cancer</a>, <a href="https://publications.waset.org/abstracts/search?q=clusterin" title=" clusterin"> clusterin</a>, <a href="https://publications.waset.org/abstracts/search?q=cytology" title=" cytology"> cytology</a> </p> <a href="https://publications.waset.org/abstracts/1844/diagnostic-evaluation-of-urinary-angiogenin-ang-and-clusterin-clu-as-biomarker-for-bladder-cancer" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/1844.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">297</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">66</span> Statistical Optimization and Production of Rhamnolipid by P. aeruginosa PAO1 Using Prickly Pear Peel as a Carbon Source</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mostafa%20M.%20Abo%20Elsoud">Mostafa M. Abo Elsoud</a>, <a href="https://publications.waset.org/abstracts/search?q=Heba%20I.%20Elkhouly"> Heba I. Elkhouly</a>, <a href="https://publications.waset.org/abstracts/search?q=Nagwa%20M.%20Sidkey"> Nagwa M. Sidkey</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Production of rhamnolipids by Pseudomonas aeruginosa has attracted a growing interest during the last few decades due to its high productivity compared with other microorganisms. In the current work, rhamnolipids production by P. aeruginosa PAO1 was statistically modeled using Taguchi orthogonal array, numerically optimized and validated. Prickly Pear Peel (Opuntia ficus-indica) has been used as a carbon source for production of rhamnolipid. Finally, the optimum conditions for rhamnolipid production were applied in 5L working volume bioreactors at different aerations, agitation and controlled pH for maximum rhamnolipid production. In addition, kinetic studies of rhamnolipids production have been reported. At the end of the batch bioreactor optimization process, rhamnolipids production by P. aeruginosa PAO1 has reached the worldwide levels and can be applied for its industrial production. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=rhamnolipids" title="rhamnolipids">rhamnolipids</a>, <a href="https://publications.waset.org/abstracts/search?q=pseudomonas%20aeruginosa" title=" pseudomonas aeruginosa"> pseudomonas aeruginosa</a>, <a href="https://publications.waset.org/abstracts/search?q=statistical%20optimization" title=" statistical optimization"> statistical optimization</a>, <a href="https://publications.waset.org/abstracts/search?q=tagushi" title=" tagushi"> tagushi</a>, <a href="https://publications.waset.org/abstracts/search?q=opuntia%20ficus-indica" title=" opuntia ficus-indica"> opuntia ficus-indica</a> </p> <a href="https://publications.waset.org/abstracts/88618/statistical-optimization-and-production-of-rhamnolipid-by-p-aeruginosa-pao1-using-prickly-pear-peel-as-a-carbon-source" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/88618.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">179</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">65</span> Study the Effect of Dermal Application of Stone Hair Dye on Experimental Animals</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hatem%20Abdel%20Moniem%20Ahmed">Hatem Abdel Moniem Ahmed</a>, <a href="https://publications.waset.org/abstracts/search?q=Ragaa%20Mohamed%20Abdel%20Maaboud"> Ragaa Mohamed Abdel Maaboud</a>, <a href="https://publications.waset.org/abstracts/search?q=Heba%20A.%20Mubarak"> Heba A. Mubarak</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A commercially available Stone Hair Dye (SHD) was spread in Upper Egypt and used for dying woman's hair. Paraphenyl-diamine (PPD) is the main component of SHD and reported as a toxic substance. This work aims to study the systemic effects induced in experimental animals as a result of dermal application of SHD. 21 rats were divided into three groups, and doses of SHD and PPD were applied according to body weight (25 mg/100 g body weight) for 90 days. The results revealed that insignificant decrease in RBC count and Hb level, but there were significant increases in the WBC count, AST, ALT, GPT, and total protein while creatinine level was insignificantly increased. Hepatocytes showed a lot of degenerative changes in the form of vacuolated cytoplasm and irregular deeply stained nuclei with vascular congestion and lymphocytic infiltration, while renal affection indicated the occurrence of atrophy of glomerular capillaries, hyperplasia, and widening of bowman space. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=PPD" title="PPD">PPD</a>, <a href="https://publications.waset.org/abstracts/search?q=SHD" title=" SHD"> SHD</a>, <a href="https://publications.waset.org/abstracts/search?q=rats%20and%20histology" title=" rats and histology"> rats and histology</a>, <a href="https://publications.waset.org/abstracts/search?q=biochemistry%20and%20hematology" title=" biochemistry and hematology"> biochemistry and hematology</a> </p> <a href="https://publications.waset.org/abstracts/18075/study-the-effect-of-dermal-application-of-stone-hair-dye-on-experimental-animals" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/18075.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">451</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">64</span> Synthesis and Characterization of Nano-Alumina Using Neem Oil as the Template for Efficient Hydrogen Generation via Photo-Hydrolysis of Sodium Borohydride</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Dina%20M.%20Abd%20El-Aty">Dina M. Abd El-Aty</a>, <a href="https://publications.waset.org/abstracts/search?q=D.%20Aman"> D. Aman</a>, <a href="https://publications.waset.org/abstracts/search?q=E.%20G.%20Zaki"> E. G. Zaki</a>, <a href="https://publications.waset.org/abstracts/search?q=Heba%20M.%20Salem"> Heba M. Salem</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A friendly environmental source of energy as hydrogen was produced by photo-hydrolysis of hydrogen storage material as sodium borohydride (NaBH4), which is non-toxic and stores a high percentage of hydrogen. The photoreaction was produced under visible light and nano-alumina as a catalyst. In this study, we use more economical and friendly environmental oil as a template to produce a nano-catalyst. The prepared catalyst was characterized by X-Ray diffraction, N2-adsorption-desorption, Fourier Transforms Infrared, Scanning Electron microscope and X-Ray Photoelectron Spectroscopy. Different parameters such as catalyst weight, NaBH4 weight and time of irradiation were studied to obtain a highly efficient photo-hydrolysis reaction. The reaction is pseudo-first order and the hydrogen production rate was determined as 1500 ml min-1 g-1 at the optimum conditions. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=photo-reaction" title="photo-reaction">photo-reaction</a>, <a href="https://publications.waset.org/abstracts/search?q=nano-alumina" title=" nano-alumina"> nano-alumina</a>, <a href="https://publications.waset.org/abstracts/search?q=hydrogen%20production" title=" hydrogen production"> hydrogen production</a>, <a href="https://publications.waset.org/abstracts/search?q=sodium%20borohydride" title=" sodium borohydride"> sodium borohydride</a>, <a href="https://publications.waset.org/abstracts/search?q=visible%20light" title=" visible light"> visible light</a> </p> <a href="https://publications.waset.org/abstracts/167816/synthesis-and-characterization-of-nano-alumina-using-neem-oil-as-the-template-for-efficient-hydrogen-generation-via-photo-hydrolysis-of-sodium-borohydride" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/167816.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">83</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">63</span> Investigating Geopolymerization Process of Aluminosilicates and its Impact on the Compressive Strength of the Produced Geopolymers</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Heba%20Fouad">Heba Fouad</a>, <a href="https://publications.waset.org/abstracts/search?q=Tarek%20M.%20Madkour">Tarek M. Madkour</a>, <a href="https://publications.waset.org/abstracts/search?q=Safwan%20A.%20Khedr"> Safwan A. Khedr </a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper investigates multiple factors that impact the formation of geopolymers and their compressive strength to be utilized in construction as an environmentally-friendly material. Bentonite and Kaolinite were thermally calcinated at 750 °C to obtain Metabentonite and Metakaolinite with higher reactivity. Both source materials were activated using a solution of sodium hydroxide (NaOH). Thereafter, samples were cured at different temperatures. The samples were analyzed chemically using a host of spectroscopic techniques. The bulk density and compressive strength of the produced Geopolymer pastes were studied. Findings indicate that the ratio of NaOH solution to source material affects the compressive strength, being optimal at 0.54. Moreover, controlled heat curing was proven effective to improve compressive strength. The existence of characteristic Fourier Transform Infrared Spectroscopy (FTIR) peaks at approximately 1020 cm-1 and 460 cm-1 which corresponds to the asymmetric stretching vibration of Si-O-T and bending vibration of Si-O-Si, hence, confirming the formation of the target geopolymer. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=calcination%20of%20metakaolinite" title="calcination of metakaolinite">calcination of metakaolinite</a>, <a href="https://publications.waset.org/abstracts/search?q=compressive%20strength" title=" compressive strength"> compressive strength</a>, <a href="https://publications.waset.org/abstracts/search?q=FTIR%20analysis" title=" FTIR analysis"> FTIR analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=geopolymer" title=" geopolymer"> geopolymer</a>, <a href="https://publications.waset.org/abstracts/search?q=green%20cement" title=" green cement"> green cement</a> </p> <a href="https://publications.waset.org/abstracts/135564/investigating-geopolymerization-process-of-aluminosilicates-and-its-impact-on-the-compressive-strength-of-the-produced-geopolymers" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/135564.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">62</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">61</span> Occupational Safety in Construction Projects</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Heba%20Elbibas">Heba Elbibas</a>, <a href="https://publications.waset.org/abstracts/search?q=Esra%20Gnijeewa"> Esra Gnijeewa</a>, <a href="https://publications.waset.org/abstracts/search?q=Zedan%20Hatush"> Zedan Hatush</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents research on occupational safety in construction projects, where the importance of safety management in projects was studied, including the preparation of a safety plan and program for each project and the identification of the responsibilities of each party to the contract. The research consists of two parts: 1-Field visits: which were field visits to three construction projects, including building projects, road projects, and tower installation. The safety level of these projects was evaluated through a checklist that includes the most important safety elements in terms of the application of these items in the projects. 2-Preparation of a questionnaire: which included supervisors and engineers and aimed to determine the level of awareness and commitment of different project categories to safety standards. The results showed the following: i) There is a moderate occupational safety policy. ii) The preparation and storage of maintenance reports are not fully complied with. iii) There is a moderate level of training on occupational safety for project workers. iv) The company does not impose penalties on safety violators permanently. v) There is a moderate policy for equipment and machinery safety. vi) Self-injuries occur due to (fatigue, lack of attention, deliberate error, and emotional factors), with a rate of 82.4%. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=management" title="management">management</a>, <a href="https://publications.waset.org/abstracts/search?q=safety" title=" safety"> safety</a>, <a href="https://publications.waset.org/abstracts/search?q=occupational%20safety" title=" occupational safety"> occupational safety</a>, <a href="https://publications.waset.org/abstracts/search?q=classification" title=" classification"> classification</a> </p> <a href="https://publications.waset.org/abstracts/165598/occupational-safety-in-construction-projects" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/165598.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">106</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">60</span> Seismic Microzonation of El-Fayoum New City, Egypt</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Suzan%20Salem">Suzan Salem</a>, <a href="https://publications.waset.org/abstracts/search?q=Heba%20Moustafa"> Heba Moustafa</a>, <a href="https://publications.waset.org/abstracts/search?q=Abd%20El-Aziz%20Abd%20El-Aal"> Abd El-Aziz Abd El-Aal</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Seismic micro hazard zonation for urban areas is the first step towards a seismic risk analysis and mitigation strategy. Essential here is to obtain a proper understanding of the local subsurface conditions and to evaluate ground-shaking effects. In the present study, an attempt has been made to evaluate the seismic hazard considering local site effects by carrying out detailed geotechnical and geophysical site characterization in El-Fayoum New City. Seismic hazard analysis and microzonation of El-Fayoum New City are addressed in three parts: in the first part, estimation of seismic hazard is done using seismotectonic and geological information. The second part deals with site characterization using geotechnical and shallow geophysical techniques. In the last part, local site effects are assessed by carrying out one-dimensional (1-D) ground response analysis using the equivalent linear method by program SHAKE 2000. Finally, microzonation maps have been prepared. The detailed methodology, along with experimental details, collected data, results and maps are presented in this paper. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=El-Fayoum" title="El-Fayoum">El-Fayoum</a>, <a href="https://publications.waset.org/abstracts/search?q=microzonation" title=" microzonation"> microzonation</a>, <a href="https://publications.waset.org/abstracts/search?q=seismotectonic" title=" seismotectonic"> seismotectonic</a>, <a href="https://publications.waset.org/abstracts/search?q=Egypt" title=" Egypt"> Egypt</a> </p> <a href="https://publications.waset.org/abstracts/39788/seismic-microzonation-of-el-fayoum-new-city-egypt" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/39788.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">59</span> Human Skin Identification Using a Specific mRNA Marker at Different Storage Durations</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abla%20A.%20Ali">Abla A. Ali</a>, <a href="https://publications.waset.org/abstracts/search?q=Heba%20A.%20Abd%20El%20Razik"> Heba A. Abd El Razik</a>, <a href="https://publications.waset.org/abstracts/search?q=Nadia%20A.%20Kotb"> Nadia A. Kotb</a>, <a href="https://publications.waset.org/abstracts/search?q=Amany%20A.%20Bayoumi"> Amany A. Bayoumi</a>, <a href="https://publications.waset.org/abstracts/search?q=Laila%20A.%20Rashed"> Laila A. Rashed</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The detection of human skin through mRNA-based profiling is a very useful tool for forensic investigations. The aim of this study was definitive identification of human skin at different time intervals using an mRNA marker late cornified envelope gene 1C. Ten middle-aged healthy volunteers of both sexes were recruited for this study. Skin samples controlled with blood samples were taken from the candidates to test for the presence of our targeted mRNA marker. Samples were kept at dry dark conditions to be tested at different time intervals (24 hours, one week, three weeks and four weeks) for detection and relative quantification of the targeted marker by RT PCR. The targeted marker could not be detected in blood samples. The targeted marker showed the highest mean value after 24 hours (11.90 ± 2.42) and the lowest mean value (7.56 ± 2.56) after three weeks. No marker could be detected at four weeks. This study verified the high specificity and sensitivity of mRNA marker in the skin at different storage times up to three weeks under the study conditions. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=human%20skin" title="human skin">human skin</a>, <a href="https://publications.waset.org/abstracts/search?q=late%20cornified%20envelope%20gene%201C" title=" late cornified envelope gene 1C"> late cornified envelope gene 1C</a>, <a href="https://publications.waset.org/abstracts/search?q=mRNA%20marker" title=" mRNA marker"> mRNA marker</a>, <a href="https://publications.waset.org/abstracts/search?q=time%20intervals" title=" time intervals"> time intervals</a> </p> <a href="https://publications.waset.org/abstracts/111176/human-skin-identification-using-a-specific-mrna-marker-at-different-storage-durations" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/111176.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">165</span> </span> </div> </div> <ul class="pagination"> <li class="page-item disabled"><span class="page-link">&lsaquo;</span></li> <li class="page-item active"><span class="page-link">1</span></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Heba%20Abdeen&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Heba%20Abdeen&page=3">3</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Heba%20Abdeen&page=2" rel="next">&rsaquo;</a></li> </ul> </div> </main> <footer> <div id="infolinks" class="pt-3 pb-2"> <div class="container"> <div style="background-color:#f5f5f5;" class="p-3"> <div class="row"> <div class="col-md-2"> <ul class="list-unstyled"> About <li><a href="https://waset.org/page/support">About Us</a></li> <li><a href="https://waset.org/page/support#legal-information">Legal</a></li> <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/WASET-16th-foundational-anniversary.pdf">WASET celebrates its 16th foundational anniversary</a></li> </ul> </div> <div class="col-md-2"> <ul class="list-unstyled"> Account <li><a href="https://waset.org/profile">My Account</a></li> </ul> </div> <div class="col-md-2"> <ul class="list-unstyled"> Explore <li><a href="https://waset.org/disciplines">Disciplines</a></li> <li><a href="https://waset.org/conferences">Conferences</a></li> <li><a href="https://waset.org/conference-programs">Conference Program</a></li> <li><a href="https://waset.org/committees">Committees</a></li> <li><a href="https://publications.waset.org">Publications</a></li> </ul> </div> <div class="col-md-2"> <ul class="list-unstyled"> Research <li><a href="https://publications.waset.org/abstracts">Abstracts</a></li> <li><a href="https://publications.waset.org">Periodicals</a></li> <li><a href="https://publications.waset.org/archive">Archive</a></li> </ul> </div> <div class="col-md-2"> <ul class="list-unstyled"> Open Science <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/Open-Science-Philosophy.pdf">Open Science Philosophy</a></li> <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/Open-Science-Award.pdf">Open Science Award</a></li> <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/Open-Society-Open-Science-and-Open-Innovation.pdf">Open Innovation</a></li> <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/Postdoctoral-Fellowship-Award.pdf">Postdoctoral Fellowship Award</a></li> <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/Scholarly-Research-Review.pdf">Scholarly Research Review</a></li> </ul> </div> <div class="col-md-2"> <ul class="list-unstyled"> Support <li><a href="https://waset.org/page/support">Support</a></li> <li><a href="https://waset.org/profile/messages/create">Contact Us</a></li> <li><a href="https://waset.org/profile/messages/create">Report Abuse</a></li> </ul> </div> </div> </div> </div> </div> <div class="container text-center"> <hr style="margin-top:0;margin-bottom:.3rem;"> <a href="https://creativecommons.org/licenses/by/4.0/" target="_blank" class="text-muted small">Creative Commons Attribution 4.0 International License</a> <div id="copy" class="mt-2">© 2024 World Academy of Science, Engineering and Technology</div> </div> </footer> <a href="javascript:" id="return-to-top"><i class="fas fa-arrow-up"></i></a> <div class="modal" id="modal-template"> <div class="modal-dialog"> <div class="modal-content"> <div class="row m-0 mt-1"> <div class="col-md-12"> <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">×</span></button> </div> </div> <div class="modal-body"></div> </div> </div> </div> <script src="https://cdn.waset.org/static/plugins/jquery-3.3.1.min.js"></script> <script src="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/js/bootstrap.bundle.min.js"></script> <script src="https://cdn.waset.org/static/js/site.js?v=150220211556"></script> <script> jQuery(document).ready(function() { /*jQuery.get("https://publications.waset.org/xhr/user-menu", function (response) { jQuery('#mainNavMenu').append(response); });*/ jQuery.get({ url: "https://publications.waset.org/xhr/user-menu", cache: false }).then(function(response){ jQuery('#mainNavMenu').append(response); }); }); </script> </body> </html>