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Hussien Mohamed</title> <meta name="description" content="Search results for: Marwa Hussien Mohamed"> <meta name="keywords" content="Marwa Hussien Mohamed"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block 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action="https://publications.waset.org/abstracts/search"> <div id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="Marwa Hussien Mohamed"> <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> 1683</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Marwa Hussien Mohamed</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1683</span> From Two-Way to Multi-Way: A Comparative Study for Map-Reduce Join Algorithms</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Marwa%20Hussien%20Mohamed">Marwa Hussien Mohamed</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Helmy%20Khafagy"> Mohamed Helmy Khafagy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Map-Reduce is a programming model which is widely used to extract valuable information from enormous volumes of data. Map-reduce designed to support heterogeneous datasets. Apache Hadoop map-reduce used extensively to uncover hidden pattern like data mining, SQL, etc. The most important operation for data analysis is joining operation. But, map-reduce framework does not directly support join algorithm. This paper explains and compares two-way and multi-way map-reduce join algorithms for map reduce also we implement MR join Algorithms and show the performance of each phase in MR join algorithms. Our experimental results show that map side join and map merge join in two-way join algorithms has the longest time according to preprocessing step sorting data and reduce side cascade join has the longest time at Multi-Way join algorithms. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hadoop" title="Hadoop">Hadoop</a>, <a href="https://publications.waset.org/abstracts/search?q=MapReduce" title=" MapReduce"> MapReduce</a>, <a href="https://publications.waset.org/abstracts/search?q=multi-way%20join" title=" multi-way join"> multi-way join</a>, <a href="https://publications.waset.org/abstracts/search?q=two-way%20join" title=" two-way join"> two-way join</a>, <a href="https://publications.waset.org/abstracts/search?q=Ubuntu" title=" Ubuntu"> Ubuntu</a> </p> <a href="https://publications.waset.org/abstracts/82539/from-two-way-to-multi-way-a-comparative-study-for-map-reduce-join-algorithms" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/82539.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">487</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">1682</span> New Two-Way Map-Reduce Join Algorithm: Hash Semi Join</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Marwa%20Hussein%20Mohamed">Marwa Hussein Mohamed</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Helmy%20Khafagy"> Mohamed Helmy Khafagy</a>, <a href="https://publications.waset.org/abstracts/search?q=Samah%20Ahmed%20Senbel"> Samah Ahmed Senbel</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Map Reduce is a programming model used to handle and support massive data sets. Rapidly increasing in data size and big data are the most important issue today to make an analysis of this data. map reduce is used to analyze data and get more helpful information by using two simple functions map and reduce it's only written by the programmer, and it includes load balancing , fault tolerance and high scalability. The most important operation in data analysis are join, but map reduce is not directly support join. This paper explains two-way map-reduce join algorithm, semi-join and per split semi-join, and proposes new algorithm hash semi-join that used hash table to increase performance by eliminating unused records as early as possible and apply join using hash table rather than using map function to match join key with other data table in the second phase but using hash tables isn't affecting on memory size because we only save matched records from the second table only. Our experimental result shows that using a hash table with hash semi-join algorithm has higher performance than two other algorithms while increasing the data size from 10 million records to 500 million and running time are increased according to the size of joined records between two tables. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=map%20reduce" title="map reduce">map reduce</a>, <a href="https://publications.waset.org/abstracts/search?q=hadoop" title=" hadoop"> hadoop</a>, <a href="https://publications.waset.org/abstracts/search?q=semi%20join" title=" semi join"> semi join</a>, <a href="https://publications.waset.org/abstracts/search?q=two%20way%20join" title=" two way join"> two way join</a> </p> <a href="https://publications.waset.org/abstracts/31822/new-two-way-map-reduce-join-algorithm-hash-semi-join" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/31822.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">513</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">1681</span> Risk Management in Islamic Banks: A Case Study of the Faisal Islamic Bank of Egypt</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Saad%20Ahmed%20Hussien">Mohamed Saad Ahmed Hussien</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper discusses the risk management in Islamic banks and aims to determine the difference in the practices and methods of risk management in those banks compared to the conventional banks, and to make a case study of the biggest Islamic bank in Egypt (Faisal Islamic Bank of Egypt) to identify the most important financial risks faced and how to manage those risks. It was found that Islamic banks face two types of risks. The first type is similar to the risks in conventional banks; the second type is the additional risks which facing the Islamic banks only as a result of some Islamic modes of financing. With regard to the risk management, Islamic banks such as conventional banks applied the regulatory rules issued by the Central Banks and the Basel Committee; Islamic banks also applied the instructions and procedures issued by the Islamic Financial Services Board (IFSB). Also, Islamic banks are similar to the conventional banks in the practices and methods which they use to manage the risks. And there are some factors that may affect the risk management in Islamic banks, such as the size of the bank and the efficiency of the administration and the staff of the bank. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=conventional%20banks" title="conventional banks">conventional banks</a>, <a href="https://publications.waset.org/abstracts/search?q=Faisal%20Islamic%20Bank%20of%20Egypt" title=" Faisal Islamic Bank of Egypt"> Faisal Islamic Bank of Egypt</a>, <a href="https://publications.waset.org/abstracts/search?q=Islamic%20banks" title=" Islamic banks"> Islamic banks</a>, <a href="https://publications.waset.org/abstracts/search?q=risk%20management" title=" risk management"> risk management</a> </p> <a href="https://publications.waset.org/abstracts/58497/risk-management-in-islamic-banks-a-case-study-of-the-faisal-islamic-bank-of-egypt" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/58497.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">459</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">1680</span> Effect of Aerobic Exercise on Estrogen Hormone and Bone Mineral Density in Osteoporotic Women</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Noha%20Mohamed%20Abdelhafez%20Dahy">Noha Mohamed Abdelhafez Dahy</a>, <a href="https://publications.waset.org/abstracts/search?q=Azza%20Abd%20El-Aziz"> Azza Abd El-Aziz</a>, <a href="https://publications.waset.org/abstracts/search?q=Eman%20Ahmed"> Eman Ahmed</a>, <a href="https://publications.waset.org/abstracts/search?q=Marwa%20El-Sayed"> Marwa El-Sayed</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Osteoporosis is a metabolic bone disease characterized by low bone mass, deterioration of bone tissue, and disruption of bone microarchitecture, which leads to compromised bone strength and an increased risk of fracture, commonly it occurs in women 10-15 years after menopause, the mean age of menopause is 51 years. Menopause is natural physiological changes primary because of decline of ovaries function with age which leads to decrease of estrogen hormone production which is the main hormone for bone continuous remodeling for bone density maintenance. Exercise increase stimulation of bone growth to keep bone mass by the effect of the mechanical stimulation, antigravity loading and stress exerted on musculoskeletal muscles. Purpose: This study aimed to determine the effect of aerobic exercise on estrogen hormone and bone mineral density (BMD) in osteoporotic women and the correlation between the estrogen and BMD. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Osteoporosis" title="Osteoporosis">Osteoporosis</a>, <a href="https://publications.waset.org/abstracts/search?q=Postmenopause" title=" Postmenopause"> Postmenopause</a>, <a href="https://publications.waset.org/abstracts/search?q=Aerobic%20exercise" title=" Aerobic exercise"> Aerobic exercise</a>, <a href="https://publications.waset.org/abstracts/search?q=DEXA" title=" DEXA"> DEXA</a>, <a href="https://publications.waset.org/abstracts/search?q=Serum%20Estrogen" title=" Serum Estrogen"> Serum Estrogen</a> </p> <a href="https://publications.waset.org/abstracts/166825/effect-of-aerobic-exercise-on-estrogen-hormone-and-bone-mineral-density-in-osteoporotic-women" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/166825.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">88</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1679</span> Adsorption of Basic Dyes Using Activated Carbon Prepared from Date Palm Fibre </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Riham%20Hazzaa">Riham Hazzaa </a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Hussien%20Abd%20El%20Megid"> Mohamed Hussien Abd El Megid </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Dyes are toxic and cause severe problems to aquatic environment. The use of agricultural solid wastes is considered as low-cost and eco-friendly adsorbents for removing dyes from waste water. Date palm fibre, an abundant agricultural by-product in Egypt was used to prepare activated carbon by physical activation method. This study investigates the use of date palm fiber (DPF) and activated carbon (DPFAC) for the removal of a basic dye, methylene blue (MB) from simulated waste water. The effects of temperature, pH of solution, initial dye (concentration, adsorbent dosage and contact time were studied. The experimental equilibrium adsorption data were analyzed by Langmuir, Freundlich, Temkin, Dubinin, Radushkevich and Harkins–Jura isotherms. Adsorption kinetics data were modeled using the pseudo-first and pseudo-second order and Elvoich equations. The mechanism of the adsorption process was determined from the intraparticle diffusion model. The results revealed that as the initial dye concentration , amount of adsorbent and temperature increased, the percentage of dye removal increased. The optimum pH required for maximum removal was found to be 6. The adsorption of methylene blue dye was better described by the pseudo-second-order equation. Results indicated that DPFAC and DPF could be an alternative for more costly adsorbents used for dye removal. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=adsorption" title="adsorption">adsorption</a>, <a href="https://publications.waset.org/abstracts/search?q=basic%20dye" title=" basic dye"> basic dye</a>, <a href="https://publications.waset.org/abstracts/search?q=palm%20fiber" title=" palm fiber"> palm fiber</a>, <a href="https://publications.waset.org/abstracts/search?q=activated%20carbon" title=" activated carbon "> activated carbon </a> </p> <a href="https://publications.waset.org/abstracts/29399/adsorption-of-basic-dyes-using-activated-carbon-prepared-from-date-palm-fibre" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/29399.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">331</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">1678</span> Interaction Effects of Vitamin D Supplementation and Aerobic Exercises on Balance and Physical Performance in Children with Down Syndrome</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20A.%20Eid">Mohamed A. Eid</a>, <a href="https://publications.waset.org/abstracts/search?q=Sobhy%20M.%20Aly"> Sobhy M. Aly</a>, <a href="https://publications.waset.org/abstracts/search?q=Marwa%20M.%20Ibrahim"> Marwa M. Ibrahim</a>, <a href="https://publications.waset.org/abstracts/search?q=Nadia%20L.%20%20Radwan"> Nadia L. Radwan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> To investigate the interaction effects of vitamin D supplementation combined with aerobic exercises (AE) and conventional physical therapy program (CPTP) on balance and physical performance in children with Down syndrome (DS).Methods: A randomized controlled trial was conducted for 38 children with DS, with ages ranging from 8 to 12 years. They were divided randomly to two groups. The control group (n=19) received the CPTP, while the study group (n=19) received the CPTP, AE, and vitamin D in the form of an oral daily dose of vitamin D3 400 IU (Cholecalciferol). Evaluation of balance by using the Biodex Stability System and physical performance by using the six-minute walk test (6MWT)was performed before and after 12 weeks of the treatment program. Findings: All groups showed a significant improvement in balance and physical performance after treatment (p < 0.05). The study group showed a significant improvement in balance and physical performancecompared with that of the control group (p < 0.05). Conclusion: Vitamin D supplementation combined with AE and CPTP could improve balance and physical performance in children with DS. Therefore, vitamin D and AEshould be considered as adjunctive to the rehabilitation program of these children. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=aerobic%20exercises" title="aerobic exercises">aerobic exercises</a>, <a href="https://publications.waset.org/abstracts/search?q=balance" title=" balance"> balance</a>, <a href="https://publications.waset.org/abstracts/search?q=down%20syndrome" title=" down syndrome"> down syndrome</a>, <a href="https://publications.waset.org/abstracts/search?q=physical%20performance" title=" physical performance"> physical performance</a>, <a href="https://publications.waset.org/abstracts/search?q=vitamin%20D" title=" vitamin D"> vitamin D</a> </p> <a href="https://publications.waset.org/abstracts/138154/interaction-effects-of-vitamin-d-supplementation-and-aerobic-exercises-on-balance-and-physical-performance-in-children-with-down-syndrome" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/138154.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">234</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">1677</span> Distributed Key Management With Less Transmitted Messaged In Rekeying Process To Secure Iot Wireless Sensor Networks In Smart-Agro</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Safwan%20Mawlood%20Hussien">Safwan Mawlood Hussien</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Internet of Things (IoT) is a promising technology has received considerable attention in different fields such as health, industry, defence, and agro, etc. Due to the limitation capacity of computing, storage, and communication, IoT objects are more vulnerable to attacks. Many solutions have been proposed to solve security issues, such as key management using symmetric-key ciphers. This study provides a scalable group distribution key management based on ECcryptography; with less transmitted messages The method has been validated through simulations in OMNeT++. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=elliptic%20curves" title="elliptic curves">elliptic curves</a>, <a href="https://publications.waset.org/abstracts/search?q=Diffie%E2%80%93Hellman" title=" Diffie–Hellman"> Diffie–Hellman</a>, <a href="https://publications.waset.org/abstracts/search?q=discrete%20logarithm%20problem" title=" discrete logarithm problem"> discrete logarithm problem</a>, <a href="https://publications.waset.org/abstracts/search?q=secure%20key%20exchange" title=" secure key exchange"> secure key exchange</a>, <a href="https://publications.waset.org/abstracts/search?q=WSN%20security" title=" WSN security"> WSN security</a>, <a href="https://publications.waset.org/abstracts/search?q=IoT%20security" title=" IoT security"> IoT security</a>, <a href="https://publications.waset.org/abstracts/search?q=smart-agro" title=" smart-agro"> smart-agro</a> </p> <a href="https://publications.waset.org/abstracts/145458/distributed-key-management-with-less-transmitted-messaged-in-rekeying-process-to-secure-iot-wireless-sensor-networks-in-smart-agro" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/145458.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">119</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">1676</span> In vitro Comparison Study of Biologically Synthesized Cupper-Disulfiram Nanoparticles with Its Free Corresponding Complex as Therapeutic Approach for Breast and Liver Cancer</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Marwa%20M.%20Abu-Serie">Marwa M. Abu-Serie</a>, <a href="https://publications.waset.org/abstracts/search?q=Marwa%20M.%20Eltarahony"> Marwa M. Eltarahony</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The search for reliable, effective, and safe nanoparticles (NPs) as a treatment for cancer is a pressing priority. In this study, Cu-NPs were fabricated by Streptomyces cyaneofuscatus through simultaneous bioreduction strategy of copper nitrate salt. The as-prepared Cu-NPs subjected to structural analysis; energy-dispersive X-ray spectroscopy, elemental mapping, X-ray diffraction, transmission electron microscopy, and ζ-potential. These biological synthesized Cu-NPs were mixed with disulfiram (DS), forming a nanocomplex of Cu-DS with a size of ~135 nm. The prepared nanocomplex (nanoCu-DS) exhibited higher anticancer activity than that of free complex of DS-Cu, Cu-NPs, and DS alone. This was illustrated by the lowest IC50 of nanoCu-DS (< 4 µM) against human breast and liver cancer cell lines comparing with DS-Cu, Cu-NPs, and DS (~8, 22.98-33.51 and 11.95-14.86, respectively). Moreover, flow cytometric analysis confirmed that higher apoptosis percentage range of nanoCu-DS-treated in MDA-MB 231, MCF-7, Huh-7, and HepG-2 cells (51.24-65.28%) than free complex of Cu-DS ( < 4.5%). Regarding inhibition potency of liver and breast cancer cell migration, no significant difference was recorded between free and nanocomplex. Furthermore, nanoCu-DS suppressed gene expression of β-catenine, Akt, and NF-κB and upregulated p53 expression (> 3, >15, > 5 and ≥ 3 folds, respectively) more efficiently than free complex (all ~ 1 fold) in MDA-MB 231 and Huh-7 cells. Our finding proved this prepared nano complex has a powerful anticancer activity relative to free complex, thereby offering a promising cancer treatment. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=biologically%20prepared%20Cu-NPs" title="biologically prepared Cu-NPs">biologically prepared Cu-NPs</a>, <a href="https://publications.waset.org/abstracts/search?q=breast%20cancer%20cell%20lines" title=" breast cancer cell lines"> breast cancer cell lines</a>, <a href="https://publications.waset.org/abstracts/search?q=liver%20cancer%20cell%20lines" title=" liver cancer cell lines"> liver cancer cell lines</a>, <a href="https://publications.waset.org/abstracts/search?q=nanoCu-%20disulfiram" title=" nanoCu- disulfiram"> nanoCu- disulfiram</a> </p> <a href="https://publications.waset.org/abstracts/130507/in-vitro-comparison-study-of-biologically-synthesized-cupper-disulfiram-nanoparticles-with-its-free-corresponding-complex-as-therapeutic-approach-for-breast-and-liver-cancer" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/130507.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">189</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1675</span> FPGA Implementation of RSA Encryption Algorithm for E-Passport Application</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Khaled%20Shehata">Khaled Shehata</a>, <a href="https://publications.waset.org/abstracts/search?q=Hanady%20Hussien"> Hanady Hussien</a>, <a href="https://publications.waset.org/abstracts/search?q=Sara%20Yehia"> Sara Yehia</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Securing the data stored on E-passport is a very important issue. RSA encryption algorithm is suitable for such application with low data size. In this paper the design and implementation of 1024 bit-key RSA encryption and decryption module on an FPGA is presented. The module is verified through comparing the result with that obtained from MATLAB tools. The design runs at a frequency of 36.3 MHz on Virtex-5 Xilinx FPGA. The key size is designed to be 1024-bit to achieve high security for the passport information. The whole design is achieved through VHDL design entry which makes it a portable design and can be directed to any hardware platform. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=RSA" title="RSA">RSA</a>, <a href="https://publications.waset.org/abstracts/search?q=VHDL" title=" VHDL"> VHDL</a>, <a href="https://publications.waset.org/abstracts/search?q=FPGA" title=" FPGA"> FPGA</a>, <a href="https://publications.waset.org/abstracts/search?q=modular%20multiplication" title=" modular multiplication"> modular multiplication</a>, <a href="https://publications.waset.org/abstracts/search?q=modular%20exponential" title=" modular exponential"> modular exponential</a> </p> <a href="https://publications.waset.org/abstracts/4249/fpga-implementation-of-rsa-encryption-algorithm-for-e-passport-application" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/4249.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">391</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">1674</span> Sudan’s Approach to Knowledge Management in Disaster Management</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Abdalla%20Elamein%20Boshara">Mohamed Abdalla Elamein Boshara</a>, <a href="https://publications.waset.org/abstracts/search?q=Peter%20Charles%20Woods"> Peter Charles Woods</a>, <a href="https://publications.waset.org/abstracts/search?q=Nour%20Eldin%20Mohamed%20Elshaiekh"> Nour Eldin Mohamed Elshaiekh </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Knowledge Management has become very important for Disaster Management response and planning. This paper proposes the implementation of a Knowledge Management System with a sustainable data collection mechanism for reliable and timely information management to support decision makers in making the right decisions in the timely manner. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=knowledge%20management" title="knowledge management">knowledge management</a>, <a href="https://publications.waset.org/abstracts/search?q=disaster%20management" title=" disaster management"> disaster management</a>, <a href="https://publications.waset.org/abstracts/search?q=incident%20tracking" title=" incident tracking"> incident tracking</a>, <a href="https://publications.waset.org/abstracts/search?q=web%20application" title=" web application"> web application</a> </p> <a href="https://publications.waset.org/abstracts/18077/sudans-approach-to-knowledge-management-in-disaster-management" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/18077.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">780</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">1673</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">165</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1672</span> The Effect of Arabic Gum on Polyethersulfone Membranes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yehia%20Manawi">Yehia Manawi</a>, <a href="https://publications.waset.org/abstracts/search?q=Viktor%20Kochkodan"> Viktor Kochkodan</a>, <a href="https://publications.waset.org/abstracts/search?q=Muataz%20Hussien"> Muataz Hussien</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, the effect of adding Arabic Gum (AG) to the dope solutions of polyethersulfone (PES) was studied. The aim of adding AG is to enhance the properties of ultrafiltration membranes such as hydrophilicity, porosity and selectivity. several AG loading (0.1-3.0 wt.%) in PES/ N-Methyl-2-pyrrolidone (NMP) casting solutions were prepared to fabricate PES membranes using phase inversion technique. The surface morphology, hydrophilicity and selectivity of the cast PES/AG membranes were analyzed using scanning electron microscopy and contact angle measurements. The selectivity of the fabricated membranes was also tested by filtration of oil solutions (1 ppm) and found to show quite high removal efficiency. The effect of adding AG to PES membranes was found to increase the permeate flux and porosity as well as reducing surface roughness and the contact angle of the membranes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=antifouling" title="antifouling">antifouling</a>, <a href="https://publications.waset.org/abstracts/search?q=Arabic%20gum" title=" Arabic gum"> Arabic gum</a>, <a href="https://publications.waset.org/abstracts/search?q=polyethersulfone%20membrane" title=" polyethersulfone membrane"> polyethersulfone membrane</a>, <a href="https://publications.waset.org/abstracts/search?q=ultrafiltration" title=" ultrafiltration"> ultrafiltration</a> </p> <a href="https://publications.waset.org/abstracts/69493/the-effect-of-arabic-gum-on-polyethersulfone-membranes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/69493.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">285</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1671</span> Isolation and Molecular Identification of Two Fungal Strains Capable of Degrading hydrocarbon Contaminants on Saudi Arabian Environment</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Amr%20A.%20EL%20Hanafy">Amr A. EL Hanafy</a>, <a href="https://publications.waset.org/abstracts/search?q=Yasir%20Anwar"> Yasir Anwar</a>, <a href="https://publications.waset.org/abstracts/search?q=Saleh%20A.%20Mohamed"> Saleh A. Mohamed</a>, <a href="https://publications.waset.org/abstracts/search?q=Saleh%20Mohamed%20Saleh%20Al-Garni"> Saleh Mohamed Saleh Al-Garni</a>, <a href="https://publications.waset.org/abstracts/search?q=Jamal%20S.%20M.%20Sabir"> Jamal S. M. Sabir </a>, <a href="https://publications.waset.org/abstracts/search?q=Osama%20A.%20H.%20Abu%20Zinadah"> Osama A. H. Abu Zinadah</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Morsi%20Ahmed"> Mohamed Morsi Ahmed</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In the vicinity of the red sea about 15 fungi species were isolated from oil contaminated sites. On the basis of aptitude to degrade the crude oil and DCPIP assay, two fungal isolates were selected amongst 15 oil degrading strains. Analysis of ITS-1, ITS-2 and amplicon pyrosequencing studies of fungal diversity revealed that these strains belong to Penicillium and Aspergillus species. Two strains that proved to be the most efficient in degrading crude oil was Aspergillus niger (54 %) and Penicillium commune (48 %) Subsequent to two weeks of cultivation in BHS medium the degradation rate were recorded by using spectrophotometer and GC-MS. Hence, it is cleared that these fungal strains has the capability of degradation and can be utilized for cleaning the Saudi Arabian environment. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=fungal%20%20strains" title="fungal strains">fungal strains</a>, <a href="https://publications.waset.org/abstracts/search?q=hydrocarbon%20contaminants" title=" hydrocarbon contaminants"> hydrocarbon contaminants</a>, <a href="https://publications.waset.org/abstracts/search?q=molecular%20identification" title=" molecular identification"> molecular identification</a>, <a href="https://publications.waset.org/abstracts/search?q=biodegradation" title=" biodegradation"> biodegradation</a>, <a href="https://publications.waset.org/abstracts/search?q=GC-MS" title=" GC-MS"> GC-MS</a> </p> <a href="https://publications.waset.org/abstracts/36036/isolation-and-molecular-identification-of-two-fungal-strains-capable-of-degrading-hydrocarbon-contaminants-on-saudi-arabian-environment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/36036.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">523</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">1670</span> Experimental Study on Friction Factor of Oscillating Flow Through a Regenerator</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Sa%C3%AFd%20Kahaleras">Mohamed Saïd Kahaleras</a>, <a href="https://publications.waset.org/abstracts/search?q=Fran%C3%A7ois%20Lanzetta"> François Lanzetta</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Khan"> Mohamed Khan</a>, <a href="https://publications.waset.org/abstracts/search?q=Guillaume%20Layes"> Guillaume Layes</a>, <a href="https://publications.waset.org/abstracts/search?q=Philippe%20Nika"> Philippe Nika</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents an experimental work to characterize the dynamic operation of a metal regenerator crossed by dry compressible air alternating flow. Unsteady dynamic measurements concern the pressure, velocity and temperature of the gas at the ends and inside the channels of the regenerator. The regenerators are tested under isothermal conditions and thermal axial temperature gradient. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=friction%20factor" title="friction factor">friction factor</a>, <a href="https://publications.waset.org/abstracts/search?q=oscillating%20flow" title=" oscillating flow"> oscillating flow</a>, <a href="https://publications.waset.org/abstracts/search?q=regenerator" title=" regenerator"> regenerator</a>, <a href="https://publications.waset.org/abstracts/search?q=stirling%20machine" title=" stirling machine"> stirling machine</a> </p> <a href="https://publications.waset.org/abstracts/2336/experimental-study-on-friction-factor-of-oscillating-flow-through-a-regenerator" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/2336.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">509</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">1669</span> Effects of Flexible Flat Feet on Electromyographic Activity of Erector Spinae and Multifidus</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdallah%20Mohamed%20Kamel%20Mohamed%20Ali">Abdallah Mohamed Kamel Mohamed Ali</a>, <a href="https://publications.waset.org/abstracts/search?q=Samah%20Saad%20Zahran"> Samah Saad Zahran</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Hamed%20Rashad"> Mohamed Hamed Rashad</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: Flexible flatfoot (FFF) has been considered as a risk factor for several lower limb injuries and mechanical low back pain. This was attributed to the dysfunction of the lumbopelvic-hip complex musculature. Objective: To investigate the influence of FFF on electromyographic activities of erector spinae and multifidus. Methods: A cross-section study was held between an FFF group (20 subjects) and a normal foot group (20 subjects). A surface electromyography was used to assess the electromyographic activity of erector spinae and multifidus. Group differences were assessed by the T-test. Results: There was a significant increase in EMG activities of erector spinae and multifidus in the FFF group compared with the normal group. Conclusion: There is an increase in EMG activities in erector spinae and multifidus in FFF subjects compared with normal subjects. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=electromyography" title="electromyography">electromyography</a>, <a href="https://publications.waset.org/abstracts/search?q=flatfoot" title=" flatfoot"> flatfoot</a>, <a href="https://publications.waset.org/abstracts/search?q=low%20back%20pain" title=" low back pain"> low back pain</a>, <a href="https://publications.waset.org/abstracts/search?q=paraspinal%20muscles" title=" paraspinal muscles"> paraspinal muscles</a> </p> <a href="https://publications.waset.org/abstracts/120916/effects-of-flexible-flat-feet-on-electromyographic-activity-of-erector-spinae-and-multifidus" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/120916.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">215</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">1668</span> Design of a Universal Wireless Battery Charger</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ahmad%20B.%20Musamih">Ahmad B. Musamih</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmad%20A.%20Albloushi"> Ahmad A. Albloushi</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20H.%20Alshemeili"> Ahmed H. Alshemeili</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdulaziz%20Y.%20Alfili"> Abdulaziz Y. Alfili</a>, <a href="https://publications.waset.org/abstracts/search?q=Ala%20A.%20Hussien"> Ala A. Hussien</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper proposes a universal wireless battery charger design for portable electronic devices. As the number of portable electronics devices increases, the demand for more flexible and reliable charging techniques is becoming more urgent. A wireless battery charger differs from a traditional charger in the way the power transferred to the battery. In the latter, the power is transferred through electrical wires that connect the charger terminals to the battery terminals, while in the former; the power is transferred by induction without electrical connections. With a detection algorithm that detects the battery size and chemistry, the proposed charger will be able to accommodate a wide range of applications, and will allow a more flexible and reliable option to most of today’s portable electronics. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=efficiency" title="efficiency">efficiency</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetically-coupled%20resonators" title=" magnetically-coupled resonators"> magnetically-coupled resonators</a>, <a href="https://publications.waset.org/abstracts/search?q=resonance%20frequency" title=" resonance frequency"> resonance frequency</a>, <a href="https://publications.waset.org/abstracts/search?q=wireless%20power%20transfer" title=" wireless power transfer"> wireless power transfer</a> </p> <a href="https://publications.waset.org/abstracts/43549/design-of-a-universal-wireless-battery-charger" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/43549.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">1667</span> The Use of Arabic Gum Mixed with Carbon Nanotubes Functionalized with Dodecylamine to Fabricate Superior Ultrafiltration Membranes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yehia%20Manawi">Yehia Manawi</a>, <a href="https://publications.waset.org/abstracts/search?q=Viktor%20Kochkodan"> Viktor Kochkodan</a>, <a href="https://publications.waset.org/abstracts/search?q=Muataz%20Hussien"> Muataz Hussien</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, the effect of adding Arabic Gum (AG) and carbon nanotubes functionalized with dodecylamine (CNT-DDA) to the casting solutions of polysulfone (PS) was investigated. The aim of adding AG and CNT-DDA was to enhance the properties of ultrafiltration membranes such as hydrophilicity, porosity and selectivity. Different CNT-DDA loadings (0.1-3.0 wt.%) in 2 wt.% AG were added to PS/dimethylacetamide (DMAc) casting solutions to prepare PS membranes using phase inversion technique. The surface morphology, hydrophilicity and selectivity of the cast PS/AG/CNT-DDA membranes were analyzed using scanning electron microscopy and contact angle measurements. The selectivity of the fabricated membranes was also tested by filtration of BSA solutions (1 ppm) and found to show quite high removal efficiency. The effect of adding AG and CNT-DDA to PS membranes was found to increase the hydrophilicity, porosity and hence the permeate flux of the fabricated membranes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Arabic%20gum" title="Arabic gum">Arabic gum</a>, <a href="https://publications.waset.org/abstracts/search?q=hydrophilicity" title=" hydrophilicity"> hydrophilicity</a>, <a href="https://publications.waset.org/abstracts/search?q=polysulfone%20membrane" title=" polysulfone membrane"> polysulfone membrane</a>, <a href="https://publications.waset.org/abstracts/search?q=ultrafiltration" title=" ultrafiltration"> ultrafiltration</a> </p> <a href="https://publications.waset.org/abstracts/69708/the-use-of-arabic-gum-mixed-with-carbon-nanotubes-functionalized-with-dodecylamine-to-fabricate-superior-ultrafiltration-membranes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/69708.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">240</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1666</span> Static Relaxation of Glass Fiber Reinforced Pipes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohammed%20Y.%20Abdellah">Mohammed Y. Abdellah</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20K.%20Hassan"> Mohamed K. Hassan</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20F.%20Mohamed"> A. F. Mohamed</a>, <a href="https://publications.waset.org/abstracts/search?q=Shadi%20M.%20Munshi"> Shadi M. Munshi</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20M.%20Hashem"> A. M. Hashem</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Pips made from glass fiber reinforced polymer has competitive role in petroleum industry. The need of evaluating the mechanical behavior of (GRP) pipes is essential objects. Stress relaxation illustrates how polymers relieve stress under constant strain. Static relaxation test is carried out at room temperature. The material gives poor static relaxation strength, two loading cycles have been observed for the tested specimen. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=GRP" title="GRP">GRP</a>, <a href="https://publications.waset.org/abstracts/search?q=sandwich%20composite%20material" title=" sandwich composite material"> sandwich composite material</a>, <a href="https://publications.waset.org/abstracts/search?q=static%20relaxation" title=" static relaxation"> static relaxation</a>, <a href="https://publications.waset.org/abstracts/search?q=stress%20relief" title=" stress relief"> stress relief</a> </p> <a href="https://publications.waset.org/abstracts/23225/static-relaxation-of-glass-fiber-reinforced-pipes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/23225.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">625</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">1665</span> Effectiveness of a Traits Cooperative Learning on Developing Writing Achievement and Composition among Teacher Candidates</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdelaziz%20Hussien">Abdelaziz Hussien</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This article reports investigations of a study into the effectiveness of a traits cooperative learning (TCL) on teacher candidates’ writing achievement, composition, and attitudes towards traits of writing approach and small group learning. Mixed methodologies were used with the participants in a repeated measures quasi-experimental design. Forty-two class teacher candidates, enrolled in the Bahrain Teachers College, completed the pre and post author-developed measures. The results suggest that TCL has a positive effect on the participants’ writing achievement, composition, and attitudes towards traits of writing approach, but not on the attitudes towards small group learning. Further implications to teacher education are presented. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=trait-based%20language%20education" title="trait-based language education">trait-based language education</a>, <a href="https://publications.waset.org/abstracts/search?q=cooperative%20learning" title=" cooperative learning"> cooperative learning</a>, <a href="https://publications.waset.org/abstracts/search?q=writing%20achievement" title=" writing achievement"> writing achievement</a>, <a href="https://publications.waset.org/abstracts/search?q=writing%20composition" title=" writing composition"> writing composition</a>, <a href="https://publications.waset.org/abstracts/search?q=traits%20of%20writing" title=" traits of writing"> traits of writing</a>, <a href="https://publications.waset.org/abstracts/search?q=teacher%20education" title=" teacher education "> teacher education </a> </p> <a href="https://publications.waset.org/abstracts/102335/effectiveness-of-a-traits-cooperative-learning-on-developing-writing-achievement-and-composition-among-teacher-candidates" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/102335.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">169</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">1664</span> Beta-Carotene Attenuates Cognitive and Hepatic Impairment in Thioacetamide-Induced Rat Model of Hepatic Encephalopathy via Mitigation of MAPK/NF-κB Signaling Pathway</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Marawan%20Abd%20Elbaset%20Mohamed">Marawan Abd Elbaset Mohamed</a>, <a href="https://publications.waset.org/abstracts/search?q=Hanan%20A.%20Ogaly"> Hanan A. Ogaly</a>, <a href="https://publications.waset.org/abstracts/search?q=Rehab%20F.%20Abdel-Rahman"> Rehab F. Abdel-Rahman</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed-Farid%20O.A."> Ahmed-Farid O.A.</a>, <a href="https://publications.waset.org/abstracts/search?q=Marwa%20S.%20Khattab"> Marwa S. Khattab</a>, <a href="https://publications.waset.org/abstracts/search?q=Reham%20M.%20Abd-Elsalam"> Reham M. Abd-Elsalam</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Liver fibrosis is a severe worldwide health concern due to various chronic liver disorders. Hepatic encephalopathy (HE) is one of its most common complications affecting liver and brain cognitive function. Beta-Carotene (B-Car) is an organic, strongly colored red-orange pigment abundant in fungi, plants, and fruits. The study attempted to know B-Car neuroprotective potential against thioacetamide (TAA)-induced neurotoxicity and cognitive decline in HE in rats. Hepatic encephalopathy was induced by TAA (100 mg/kg, i.p.) three times per week for two weeks. B-Car was given orally (10 or 20 mg/kg) daily for two weeks after TAA injections. Organ body weight ratio, Serum transaminase activities, liver’s antioxidant parameters, ammonia, and liver histopathology were assessed. Also, the brain’s mitogen-activated protein kinase (MAPK), nuclear factor kappa B (NF-κB), antioxidant parameters, adenosine triphosphate (ATP), adenosine monophosphate (AMP), norepinephrine (NE), dopamine (DA), serotonin (5-HT), 5-hydroxyindoleacetic acid (5-HIAA) cAMP response element-binding protein (CREB) expression and B-cell lymphoma 2 (Bcl-2) expression were measured. The brain’s cognitive functions (Spontaneous locomotor activity, Rotarod performance test, Object recognition test) were assessed. B-Car prevented alteration of the brain’s cognitive function in a dose-dependent manner. The histopathological outcomes supported these biochemical evidences. Based on these results, it could be established that B-Car could be assigned to treat the brain’s neurotoxicity consequences of HE via downregualtion of MAPK/NF-κB signaling pathways. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=beta-carotene" title="beta-carotene">beta-carotene</a>, <a href="https://publications.waset.org/abstracts/search?q=liver%20injury" title=" liver injury"> liver injury</a>, <a href="https://publications.waset.org/abstracts/search?q=MAPK" title=" MAPK"> MAPK</a>, <a href="https://publications.waset.org/abstracts/search?q=NF-%CE%BAB" title="NF-κB">NF-κB</a>, <a href="https://publications.waset.org/abstracts/search?q=rat" title=" rat"> rat</a>, <a href="https://publications.waset.org/abstracts/search?q=thioacetamide" title=" thioacetamide"> thioacetamide</a> </p> <a href="https://publications.waset.org/abstracts/148316/beta-carotene-attenuates-cognitive-and-hepatic-impairment-in-thioacetamide-induced-rat-model-of-hepatic-encephalopathy-via-mitigation-of-mapknf-kb-signaling-pathway" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/148316.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">154</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">1663</span> Preparation, Characterization, and Antimicrobial Activity of Carboxymethyl Chitosan Schiff Bases with Different Benzaldehyde Derivatives</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nadia%20A.%20Mohamed">Nadia A. Mohamed</a>, <a href="https://publications.waset.org/abstracts/search?q=Magdy%20W.%20Sabaa"> Magdy W. Sabaa</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20H.%20H.%20El-Ghandour"> Ahmed H. H. El-Ghandour</a>, <a href="https://publications.waset.org/abstracts/search?q=Marwa%20M.%20Abdel-Aziz"> Marwa M. Abdel-Aziz</a>, <a href="https://publications.waset.org/abstracts/search?q=Omayma%20F.%20Abdel-Gawad"> Omayma F. Abdel-Gawad</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Eighteen carboxymethyl chitosan (CMCh) schiff bases and their reduced derivatives have been synthesized. They were characterized by spectral analyses (FT-IR and H1-NMR) and scanning electron microscopy observation. Their antibacterial activities against Streptococcus pneumoniae (RCMB 010010), Bacillis subtilis (RCMB 010067), as Gram positive bacteria and Escherichia coli (RCMB 010052) as Gram negative bacteria and the antifungal activity against Aspergillus fumigatus (RCMB 02568), Geotricum candidum (RCMB 05097), and Candida albicans (RCMB 05031) were examined using agar disk diffusion method. The results demonstrate how the antibacterial and the antifungal activity are clearly affected by both the nature and position of the substituent groups in the aryl ring of the prepared derivatives. CMCh-4-nitroBenz Schiff base and its reduced form show higher antimicrobial activity comparing with other para substituted derivatives. CMCh-4-nitroBenz Schiff base: 18.3, 17, and 15.6 mm against Bacillis subtilis, Streptococcus pneumonia, and Escherichia coli respectively and 16.2, 17.3, and 16.4 mm against Aspergillus fumigates, Geotricum candidum, and Candida albicans respectively. CMCh-4-nitroBenz reduced form: 19.5, 18.7, and 16.2 mm against Bacillis subtilis, Streptococcus pneumonia, and Escherichia coli respectively and 17.5, 19.5, and 17.4 mm against Aspergillus fumigates, Geotricum candidum, and Candida albicans respectively. Also CMCh-3-bromoBenz show good results; CMCh-3-bromoBenz schiff base: 19.2, 16.9, and 14.6 mm Bacillis subtilis, Streptococcus pneumonia, and Escherichia coli respectively and 18.4, 17.6, and 15.9 mm against Aspergillus fumigates, Geotricum candidum, and Candida albicans respectively. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chitosan" title="chitosan">chitosan</a>, <a href="https://publications.waset.org/abstracts/search?q=schiff%20base" title=" schiff base"> schiff base</a>, <a href="https://publications.waset.org/abstracts/search?q=minimum%20inhibition%20concentration" title=" minimum inhibition concentration"> minimum inhibition concentration</a>, <a href="https://publications.waset.org/abstracts/search?q=antimicrobial%20activity" title=" antimicrobial activity"> antimicrobial activity</a> </p> <a href="https://publications.waset.org/abstracts/15333/preparation-characterization-and-antimicrobial-activity-of-carboxymethyl-chitosan-schiff-bases-with-different-benzaldehyde-derivatives" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/15333.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">462</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">1662</span> Study on the Effect of Coupling Fluid Compressible-Deformable Wall on the Flow of Molten Polymers</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Driouich">Mohamed Driouich</a>, <a href="https://publications.waset.org/abstracts/search?q=Kamal%20Gueraoui"> Kamal Gueraoui</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Sammouda"> Mohamed Sammouda</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The main objective of this work is to establish a numerical code for studying the flow of molten polymers in deformable pipes. Using an iterative numerical method based on finite differences, we determine the profiles of the fluid velocity, the temperature and the apparent viscosity of the fluid. The numerical code presented can also be applied to other industrial applications. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=numerical%20code" title="numerical code">numerical code</a>, <a href="https://publications.waset.org/abstracts/search?q=molten%20polymers" title=" molten polymers"> molten polymers</a>, <a href="https://publications.waset.org/abstracts/search?q=deformable%20pipes" title=" deformable pipes"> deformable pipes</a>, <a href="https://publications.waset.org/abstracts/search?q=finite%20differences" title=" finite differences"> finite differences</a> </p> <a href="https://publications.waset.org/abstracts/8493/study-on-the-effect-of-coupling-fluid-compressible-deformable-wall-on-the-flow-of-molten-polymers" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/8493.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">574</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">1661</span> Tax Avoidance and Leadership Replacement: Moderating Influence of Ownership and Political Connections</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Radwan%20Hussien%20Alkebsee">Radwan Hussien Alkebsee</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Under the argument that reputational costs deter firms from engaging in tax avoidance activities, this paper investigates the relationship between tax avoidance and forced CEO turnover. This study is based on a broad sample of Chinese listed companies spanning the period 2011 to 2018. The findings reveal that tax avoidance is positively associated with forced CEO turnover. This suggests that firms that engage in tax avoidance experience a high rate of leadership replacement. The findings also reveal that the positive association between tax avoidance and forced CEO turnover is pronounced for state-owned firms, firms with no political connections, and firms located in “more developed” regions with extensive tax enforcement action, while it is not for private firms, firms with political connections, and firms located in “less developed” regions with weak tax enforcement actions. The baseline results remain consistent and robust for endogeneity concerns. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=tax%20avoidance" title="tax avoidance">tax avoidance</a>, <a href="https://publications.waset.org/abstracts/search?q=CEO%20turnover" title=" CEO turnover"> CEO turnover</a>, <a href="https://publications.waset.org/abstracts/search?q=political%20connections" title=" political connections"> political connections</a>, <a href="https://publications.waset.org/abstracts/search?q=regional%20tax%20enforcement" title=" regional tax enforcement"> regional tax enforcement</a>, <a href="https://publications.waset.org/abstracts/search?q=China" title=" China"> China</a> </p> <a href="https://publications.waset.org/abstracts/150110/tax-avoidance-and-leadership-replacement-moderating-influence-of-ownership-and-political-connections" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/150110.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">153</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">1660</span> Computational Pipeline for Lynch Syndrome Detection: Integrating Alignment, Variant Calling, and Annotations</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rofida%20Gamal">Rofida Gamal</a>, <a href="https://publications.waset.org/abstracts/search?q=Mostafa%20Mohammed"> Mostafa Mohammed</a>, <a href="https://publications.waset.org/abstracts/search?q=Mariam%20Adel"> Mariam Adel</a>, <a href="https://publications.waset.org/abstracts/search?q=Marwa%20Gamal"> Marwa Gamal</a>, <a href="https://publications.waset.org/abstracts/search?q=Marwa%20kamal"> Marwa kamal</a>, <a href="https://publications.waset.org/abstracts/search?q=Ayat%20Saber"> Ayat Saber</a>, <a href="https://publications.waset.org/abstracts/search?q=Maha%20Mamdouh"> Maha Mamdouh</a>, <a href="https://publications.waset.org/abstracts/search?q=Amira%20Emad"> Amira Emad</a>, <a href="https://publications.waset.org/abstracts/search?q=Mai%20Ramadan"> Mai Ramadan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Lynch Syndrome is an inherited genetic condition associated with an increased risk of colorectal and other cancers. Detecting Lynch Syndrome in individuals is crucial for early intervention and preventive measures. This study proposes a computational pipeline for Lynch Syndrome detection by integrating alignment, variant calling, and annotation. The pipeline leverages popular tools such as FastQC, Trimmomatic, BWA, bcftools, and ANNOVAR to process the input FASTQ file, perform quality trimming, align reads to the reference genome, call variants, and annotate them. It is believed that the computational pipeline was applied to a dataset of Lynch Syndrome cases, and its performance was evaluated. It is believed that the quality check step ensured the integrity of the sequencing data, while the trimming process is thought to have removed low-quality bases and adaptors. In the alignment step, it is believed that the reads were accurately mapped to the reference genome, and the subsequent variant calling step is believed to have identified potential genetic variants. The annotation step is believed to have provided functional insights into the detected variants, including their effects on known Lynch Syndrome-associated genes. The results obtained from the pipeline revealed Lynch Syndrome-related positions in the genome, providing valuable information for further investigation and clinical decision-making. The pipeline's effectiveness was demonstrated through its ability to streamline the analysis workflow and identify potential genetic markers associated with Lynch Syndrome. It is believed that the computational pipeline presents a comprehensive and efficient approach to Lynch Syndrome detection, contributing to early diagnosis and intervention. The modularity and flexibility of the pipeline are believed to enable customization and adaptation to various datasets and research settings. Further optimization and validation are believed to be necessary to enhance performance and applicability across diverse populations. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Lynch%20Syndrome" title="Lynch Syndrome">Lynch Syndrome</a>, <a href="https://publications.waset.org/abstracts/search?q=computational%20pipeline" title=" computational pipeline"> computational pipeline</a>, <a href="https://publications.waset.org/abstracts/search?q=alignment" title=" alignment"> alignment</a>, <a href="https://publications.waset.org/abstracts/search?q=variant%20calling" title=" variant calling"> variant calling</a>, <a href="https://publications.waset.org/abstracts/search?q=annotation" title=" annotation"> annotation</a>, <a href="https://publications.waset.org/abstracts/search?q=genetic%20markers" title=" genetic markers"> genetic markers</a> </p> <a href="https://publications.waset.org/abstracts/178986/computational-pipeline-for-lynch-syndrome-detection-integrating-alignment-variant-calling-and-annotations" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/178986.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">77</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">1659</span> Multiphase Flow Model for 3D Numerical Model Using ANSYS for Flow over Stepped Cascade with End Sill</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Dheyaa%20Wajid%20Abbood">Dheyaa Wajid Abbood</a>, <a href="https://publications.waset.org/abstracts/search?q=Hanan%20Hussien%20Abood"> Hanan Hussien Abood</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Stepped cascade has been utilized as a hydraulic structure for years. It has proven to be the least costly aeration system in replenishing dissolved oxygen. Numerical modeling of stepped cascade with end sill is very complicated and challenging because of the high roughness and velocity re circulation regions. Volume of fluid multiphase flow model (VOF) is used .The realizable k-ξ model is chosen to simulate turbulence. The computational results are compared with lab-scale stepped cascade data. The lab –scale model was constructed in the hydraulic laboratory, Al-Mustansiriya University, Iraq. The stepped cascade was 0.23 m wide and consisted of 3 steps each 0.2m high and 0.6 m long with variable end sill. The discharge was varied from 1 to 4 l/s. ANSYS has been employed to simulate the experimental data and their related results. This study shows that ANSYS is able to predict results almost the same as experimental findings in some regions of the structure. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=stepped%20cascade%20weir" title="stepped cascade weir">stepped cascade weir</a>, <a href="https://publications.waset.org/abstracts/search?q=aeration" title=" aeration"> aeration</a>, <a href="https://publications.waset.org/abstracts/search?q=multiphase%20flow%20model" title=" multiphase flow model"> multiphase flow model</a>, <a href="https://publications.waset.org/abstracts/search?q=ansys" title=" ansys"> ansys</a> </p> <a href="https://publications.waset.org/abstracts/30556/multiphase-flow-model-for-3d-numerical-model-using-ansys-for-flow-over-stepped-cascade-with-end-sill" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/30556.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">336</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1658</span> Characterization of Coronary Artery Obstruction and Related Findings in Ischemic Heart Patients Using Cardiac Scintigraphy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yousif%20Mohamed%20Y.%20Abdallah">Yousif Mohamed Y. Abdallah</a>, <a href="https://publications.waset.org/abstracts/search?q=Eltayeb%20Wagi%20Allah%20Eltayeb"> Eltayeb Wagi Allah Eltayeb</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20E.%20Gar-elnabi"> Mohamed E. Gar-elnabi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Ahmed%20Ali"> Mohamed Ahmed Ali </a> </p> <p class="card-text"><strong>Abstract:</strong></p> To characterize coronary artery obstruction and related findings in ischemic heart patients using cardiac scintigraphy for the identification of myocardial ischemia, 146 patients were studied at basal conditions and also asked for fasting after night till the intravenous injection of the radiopharmaceutical. After the injection time about 15 to 20 minutes, the patient should eat a fatty meal and chocolate for the good excretion of the gall bladder, to evaluate the performance and regional wall motion of the left ventricle (LV). The results showed that the body mass index percentage in this sample was in range of 43.05 to 61.05. The number of patients who were catheter candidates were 56 with 43% and the patients that were not candidate to cathode were 74 patients with 57% of all patients. For the group of patients where type of ischemia was assessed, 29.5% of patients had reversible posterior and inferior wall, 15.1% of patients had fixed large from apex to base, 9.6% of patients had mild basal inferior wall, 4.8 % of patients had mild anterior wall, 6.2% of patients had antro-septal and 34.9% of patients had moderate ischemia. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=myocardial%20ischemia" title="myocardial ischemia">myocardial ischemia</a>, <a href="https://publications.waset.org/abstracts/search?q=myocardial%20scintigraphy" title=" myocardial scintigraphy"> myocardial scintigraphy</a>, <a href="https://publications.waset.org/abstracts/search?q=contrast%20ventriculography" title=" contrast ventriculography"> contrast ventriculography</a>, <a href="https://publications.waset.org/abstracts/search?q=coronary%20artery%20obstruction" title=" coronary artery obstruction"> coronary artery obstruction</a> </p> <a href="https://publications.waset.org/abstracts/13957/characterization-of-coronary-artery-obstruction-and-related-findings-in-ischemic-heart-patients-using-cardiac-scintigraphy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/13957.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">585</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">1657</span> Effect of Papaverine on Neurospheres</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Noura%20Shehab-Eldeen">Noura Shehab-Eldeen</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Elsherbeeny"> Mohamed Elsherbeeny</a>, <a href="https://publications.waset.org/abstracts/search?q=Hossam%20Elmetwally"> Hossam Elmetwally</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Salama"> Mohamed Salama</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Lotfy"> Ahmed Lotfy</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Elgamal"> Mohamed Elgamal</a>, <a href="https://publications.waset.org/abstracts/search?q=Hussein%20Sheashaa"> Hussein Sheashaa</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Sobh"> Mohamed Sobh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Mitochondrial toxins including papaverine may be implicated in the etiology and pathogenesis of Parkinson's disease. The aim was to detect the effect of papaverine on the proliferation and viability of neural stem cells. Rat neural progenitor cells were isolated from embryos (E14) brains. The dispersed tissues were allowed to settle, then, The supernatant was centrifuged at 1,000 g for 5 min. The pellet was placed in Hank’s solution cultured as free-floating neurospheres Dulbecco’s modified Eagle medium (DMEM) and Hams F12 (3:1) supplemented with B27 (Invitrogen GmBH, Karlsruhe, Germany), 20 ng/mL epidermal growth factor (EGF; Biosource, Karlsruhe, Germany), 20 ng/mL recombinant human fibroblast growth factor (rhFGF; R&D Systems, Wiesbaden-Nordenstadt, Germany), and penicillin and streptomycin (1:100; Invitrogen) at 37°C with 7.5% CO2 . Differentiation was initiated by growth factor withdrawal and plating onto a poly-d-lysine/ laminin matrix. The neurospheres were fed every 2-3 days by replacing 50% of the culture media with fresh media. The culture suspension was transferred to a dish containing 16 wells. The wells were divided as follows: 4 wells received no papaverine (control), 4 wells 1 u, 4 wells 5 u and 4 wells 10 u of papaverine solution. In the next 2 weeks, photography (0,4,5,11days) and viability test were done. The photographs were analysed. Results : papaverine didn't affect proliferation of neurospheres, while it affected viability compared to control , this was dose related. Conclusion: This indicates the harmful effect of papaverine suggesting it to be a candidate neurotoxin causing Parkinsonism. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=neurospheres" title="neurospheres">neurospheres</a>, <a href="https://publications.waset.org/abstracts/search?q=neural%20stem%20cells" title=" neural stem cells"> neural stem cells</a>, <a href="https://publications.waset.org/abstracts/search?q=papaverine" title=" papaverine"> papaverine</a>, <a href="https://publications.waset.org/abstracts/search?q=Parkinsonism" title=" Parkinsonism"> Parkinsonism</a> </p> <a href="https://publications.waset.org/abstracts/14864/effect-of-papaverine-on-neurospheres" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/14864.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">660</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">1656</span> Tracking Maximum Power Point Utilizing Artificial Immunity System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Marwa%20Ahmed%20Abd%20El%20Hamied">Marwa Ahmed Abd El Hamied</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper In this paper, a new technique based on Artificial Immunity System (AIS) technique has been developed to track Maximum Power Point (MPP). AIS system is implemented in a photovoltaic system that is subjected to variable temperature and insulation condition. The proposed novel is simulated using Mat Lab program. The results of simulation have been compared to those who are generated from Observation Controller. The proposed model shows promising results as it provide better accuracy comparing to classical model. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=component" title="component">component</a>, <a href="https://publications.waset.org/abstracts/search?q=artificial%20immunity%20technique" title=" artificial immunity technique"> artificial immunity technique</a>, <a href="https://publications.waset.org/abstracts/search?q=solar%0D%0Aenergy" title=" solar energy"> solar energy</a>, <a href="https://publications.waset.org/abstracts/search?q=perturbation%20and%20observation" title=" perturbation and observation"> perturbation and observation</a>, <a href="https://publications.waset.org/abstracts/search?q=power%20based%20methods" title=" power based methods"> power based methods</a> </p> <a href="https://publications.waset.org/abstracts/32619/tracking-maximum-power-point-utilizing-artificial-immunity-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/32619.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">427</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">1655</span> Yellow Necklacepod and Shih-Balady: Possible Promising Sources Against Human Coronaviruses</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Howaida%20I.%20Abd-Alla">Howaida I. Abd-Alla</a>, <a href="https://publications.waset.org/abstracts/search?q=Omnia%20Kutkat"> Omnia Kutkat</a>, <a href="https://publications.waset.org/abstracts/search?q=Yassmin%20Moatasim"> Yassmin Moatasim</a>, <a href="https://publications.waset.org/abstracts/search?q=Magda%20T.%20Ibrahim"> Magda T. Ibrahim</a>, <a href="https://publications.waset.org/abstracts/search?q=Marwa%20A.%20Mostafa"> Marwa A. Mostafa</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20GabAllah"> Mohamed GabAllah</a>, <a href="https://publications.waset.org/abstracts/search?q=Mounir%20M.%20El-Safty"> Mounir M. El-Safty</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Artemisia judaica (known shih-balady), Azadirachta indica and Sophora tomentosa (known yellow necklace pod) are members of available medicinal plants well-known for their traditional medical use in Egypt which suggests that they probably harbor broad-spectrum antiviral, immunostimulatory and anti-inflammatory functions. Their ethyl acetate-dichloromethane (1:1, v/v) extracts were evaluated for the potential anti-Middle East respiratory syndrome-related coronavirus (anti-MERS-CoV) activity. Their cytotoxic activity was tested in Vero-E6 cells using 3-(4,-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) method with minor modification. The plot of percentage cytotoxicity for each extract concentration has calculated the concentration which exhibited 50% cytotoxic concentration (TC50). A plaque reduction assay was employed using safe dose of extract to evaluate its effect on virus propagation. The highest inhibition percentage was recorded for the yellow necklace pod, followed by Shih-balady. The possible mode of action of virus inhibition was studied at three different levels viral replication, viral adsorption and virucidal activity. The necklace pod leaves have induced virucidal effects and direct effects on the replication of virus. Phytochemical investigation of the promising necklace pod led to the isolation and structure determination of nine compounds. The structure of each compound was determined by a variety of spectroscopic methods. Compounds 4-O-methyl sorbitol 1, 8-methoxy daidzin 6 and 6-methoxy apigenin-7-O-β-D-glucopyranoside 8 were isolated for the first time from the Sophora genus and the other six compounds were the first time that they were isolated from this species according to available works of literature. Generally, the highest anti-CoV 2 activity of S. tomentosa was associated with the crude ethanolic extract, indicating the possibility of synergy among the antiviral phytochemical constituents (1-9). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=coronavirus" title="coronavirus">coronavirus</a>, <a href="https://publications.waset.org/abstracts/search?q=MERS-CoV" title=" MERS-CoV"> MERS-CoV</a>, <a href="https://publications.waset.org/abstracts/search?q=mode%20of%20action" title=" mode of action"> mode of action</a>, <a href="https://publications.waset.org/abstracts/search?q=necklace%20pod" title=" necklace pod"> necklace pod</a>, <a href="https://publications.waset.org/abstracts/search?q=shih-balady" title=" shih-balady"> shih-balady</a> </p> <a href="https://publications.waset.org/abstracts/140747/yellow-necklacepod-and-shih-balady-possible-promising-sources-against-human-coronaviruses" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/140747.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">209</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1654</span> Improved Skin Detection Using Colour Space and Texture</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Medjram%20Sofiane">Medjram Sofiane</a>, <a href="https://publications.waset.org/abstracts/search?q=Babahenini%20Mohamed%20Chaouki"> Babahenini Mohamed Chaouki</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Benali%20Yamina"> Mohamed Benali Yamina</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Skin detection is an important task for computer vision systems. A good method for skin detection means a good and successful result of the system. The colour is a good descriptor that allows us to detect skin colour in the images, but because of lightings effects and objects that have a similar colour skin, skin detection becomes difficult. In this paper, we proposed a method using the YCbCr colour space for skin detection and lighting effects elimination, then we use the information of texture to eliminate the false regions detected by the YCbCr colour skin model. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=skin%20detection" title="skin detection">skin detection</a>, <a href="https://publications.waset.org/abstracts/search?q=YCbCr" title=" YCbCr"> YCbCr</a>, <a href="https://publications.waset.org/abstracts/search?q=GLCM" title=" GLCM"> GLCM</a>, <a href="https://publications.waset.org/abstracts/search?q=texture" title=" texture"> texture</a>, <a href="https://publications.waset.org/abstracts/search?q=human%20skin" title=" human skin"> human skin</a> </p> <a href="https://publications.waset.org/abstracts/19039/improved-skin-detection-using-colour-space-and-texture" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/19039.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">459</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=Marwa%20Hussien%20Mohamed&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Marwa%20Hussien%20Mohamed&page=3">3</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Marwa%20Hussien%20Mohamed&page=4">4</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Marwa%20Hussien%20Mohamed&page=5">5</a></li> <li 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