Search results for: El Shaer M.

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M.</title> <meta name="description" content="Search results for: El Shaer M."> <meta name="keywords" content="El Shaer M."> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none navbar-toggler ml-auto" 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id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="El Shaer M."> <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> 4</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: El Shaer M.</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4</span> Optimization of Solar Tracking Systems</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20Zaher">A. Zaher</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Traore"> A. Traore</a>, <a href="https://publications.waset.org/abstracts/search?q=F.%20Thi%C3%A9ry"> F. Thiéry</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20Talbert"> T. Talbert</a>, <a href="https://publications.waset.org/abstracts/search?q=B.%20Shaer"> B. Shaer</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, an intelligent approach is proposed to optimize the orientation of continuous solar tracking systems on cloudy days. Considering the weather case, the direct sunlight is more important than the diffuse radiation in case of clear sky. Thus, the panel is always pointed towards the sun. In case of an overcast sky, the solar beam is close to zero, and the panel is placed horizontally to receive the maximum of diffuse radiation. Under partly covered conditions, the panel must be pointed towards the source that emits the maximum of solar energy and it may be anywhere in the sky dome. Thus, the idea of our approach is to analyze the images, captured by ground-based sky camera system, in order to detect the zone in the sky dome which is considered as the optimal source of energy under cloudy conditions. The proposed approach is implemented using experimental setup developed at PROMES-CNRS laboratory in Perpignan city (France). Under overcast conditions, the results were very satisfactory, and the intelligent approach has provided efficiency gains of up to 9% relative to conventional continuous sun tracking systems. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=clouds%20detection" title="clouds detection">clouds detection</a>, <a href="https://publications.waset.org/abstracts/search?q=fuzzy%20inference%20systems" title=" fuzzy inference systems"> fuzzy inference systems</a>, <a href="https://publications.waset.org/abstracts/search?q=images%20processing" title=" images processing"> images processing</a>, <a href="https://publications.waset.org/abstracts/search?q=sun%20trackers" title=" sun trackers"> sun trackers</a> </p> <a href="https://publications.waset.org/abstracts/78393/optimization-of-solar-tracking-systems" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/78393.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">192</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3</span> Patient Service Improvement in Public Emergency Department Using Discrete Event Simulation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Dana%20Mohammed">Dana Mohammed</a>, <a href="https://publications.waset.org/abstracts/search?q=Fatemah%20Abdullah"> Fatemah Abdullah</a>, <a href="https://publications.waset.org/abstracts/search?q=Hawraa%20Ali"> Hawraa Ali</a>, <a href="https://publications.waset.org/abstracts/search?q=Najat%20Al-Shaer"> Najat Al-Shaer</a>, <a href="https://publications.waset.org/abstracts/search?q=Rawan%20Al-Awadhi"> Rawan Al-Awadhi</a>, <a href="https://publications.waset.org/abstracts/search?q="></a>, <a href="https://publications.waset.org/abstracts/search?q=Magdy%20Helal">Magdy Helal</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We study the patient service performance at the emergency department of a major Kuwaiti public hospital, using discrete simulation and lean concepts. In addition to the common problems in such health care systems (over crowdedness, facilities planning and usage, scheduling and staffing, capacity planning) the emergency department suffered from several cultural and patient behavioural issues. Those contributed significantly to the system problems and constituted major obstacles in maintaining the performance in control. This led to overly long waiting times and the potential of delaying providing help to critical cases. We utilized the visual management tools to mitigate the impact of the patients’ behaviours and attitudes and improve the logistics inside the system. In addition a proposal is made to automate the date collection and communication within the department using RFID-based barcoding system. Discrete event simulation models were developed as decision support systems; to study the operational problems and assess achieved improvements. The simulation analysis resulted in cutting the patient delays to about 35% of their current values by reallocating and rescheduling the medical staff. Combined with the application of the visual management concepts, this provided the basis to improving patient service without any major investments. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=simulation" title="simulation">simulation</a>, <a href="https://publications.waset.org/abstracts/search?q=visual%20management" title=" visual management"> visual management</a>, <a href="https://publications.waset.org/abstracts/search?q=health%20care%20system" title=" health care system"> health care system</a>, <a href="https://publications.waset.org/abstracts/search?q=patient" title=" patient "> patient </a> </p> <a href="https://publications.waset.org/abstracts/24792/patient-service-improvement-in-public-emergency-department-using-discrete-event-simulation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/24792.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">475</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">2</span> Antitumor Activity of Gold Nanorods against Mammary Gland and Skin Carcinoma in Dogs and Cats</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdoon%20A.S.">Abdoon A.S.</a>, <a href="https://publications.waset.org/abstracts/search?q=El%20Ashkar%20E.A."> El Ashkar E.A.</a>, <a href="https://publications.waset.org/abstracts/search?q=Kandil%20O.M."> Kandil O.M.</a>, <a href="https://publications.waset.org/abstracts/search?q=Wael%20H.%20Eisa"> Wael H. Eisa</a>, <a href="https://publications.waset.org/abstracts/search?q=Shaban%20A.M."> Shaban A.M.</a>, <a href="https://publications.waset.org/abstracts/search?q=Khaled%20H.M."> Khaled H.M.</a>, <a href="https://publications.waset.org/abstracts/search?q=El%20Ashkar%20M.R."> El Ashkar M.R.</a>, <a href="https://publications.waset.org/abstracts/search?q=El%20Shaer%20M."> El Shaer M.</a>, <a href="https://publications.waset.org/abstracts/search?q=Hussein%20H."> Hussein H.</a>, <a href="https://publications.waset.org/abstracts/search?q=Shaalan%20A.H."> Shaalan A.H.</a>, <a href="https://publications.waset.org/abstracts/search?q=El%20Sayed%20M."> El Sayed M.</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Cancer is a major obstacle to human health and development worldwide. Conventional strategies for cancer intervention include surgery, chemotherapy, and radiation therapy. Recently, plasmon photothermal therapy (PPTT) was introduced as a promising treatment for the management of cancer and several non-cancerous diseases that are generally characterized by overgrowth of abnormal cells. The present work was conducted to evaluate the cytotoxic efficacy and toxicity of gold nanorods (AuNRs) in dogs and cats suffering from spontaneous mammary gland. AuNRs was injected intratumoral (IT, n=10, dose of 75 p.p.m/kg body weight) or by using spray method after surgical removal of cancer tissue (n=2) in dogs and cats. Then exposed to laser light after 60 min. Treated animals were observed every 2 days and the morphological changes in tumor size and shape were recorded. Blood samples were collected before and after treatment for checking CBC, liver and kidney functions. Results revealed that AuNRs successfully treat mammary gland tumor in dogs and cats (adenocarcinoma type 1 to IV). AuNRs induced sloughing of carcinogenic tissue within 5 to 15 days. AuNRs have no toxic effect on blood profile and the toxicity studies still under evaluation. Conclusion, AuNRs can be used for treatment of mammary gland carcinoma in dogs and cats. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=pet%20animals" title="pet animals">pet animals</a>, <a href="https://publications.waset.org/abstracts/search?q=mammary%20gland%20tumor" title=" mammary gland tumor"> mammary gland tumor</a>, <a href="https://publications.waset.org/abstracts/search?q=AuNRs" title=" AuNRs"> AuNRs</a>, <a href="https://publications.waset.org/abstracts/search?q=photothermal%20therapy" title=" photothermal therapy"> photothermal therapy</a>, <a href="https://publications.waset.org/abstracts/search?q=toxicity%20studies" title=" toxicity studies"> toxicity studies</a> </p> <a href="https://publications.waset.org/abstracts/24346/antitumor-activity-of-gold-nanorods-against-mammary-gland-and-skin-carcinoma-in-dogs-and-cats" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/24346.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">384</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1</span> Impact of Stress and Protein Malnutrition on the Potential Role of Epigallocatechin-3-Gallate in Providing Protection from Nephrotoxicity and Hepatotoxicity Induced by Aluminum in Rats</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Azza%20A.%20Ali">Azza A. Ali</a>, <a href="https://publications.waset.org/abstracts/search?q=Mona%20G.%20Khalil"> Mona G. Khalil</a>, <a href="https://publications.waset.org/abstracts/search?q=Hemat%20A.%20Elariny"> Hemat A. Elariny</a>, <a href="https://publications.waset.org/abstracts/search?q=Shereen%20S.%20El%20Shaer"> Shereen S. El Shaer</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: Aluminium (Al) is very abundant metal in the earth’s crust. It is a constituent of cooking utensils, medicines, cosmetics, some foods and food additives. Salts of Al are widely used in the treatment of drinking water for purification purposes. Excessive and prolonged exposure to Al causes oxidative stress and impairment of many physiological functions. Its accumulation in liver and kidney causes hepatotoxicity and nephrotoxicity. Social isolation (SI) or Protein malnutrition (PM) also increases oxidative stress and may enhance the toxicity of Al as well as the degeneration in liver and kidney. Epigallocatechin-3-gallate (EGCG) is the most abundant catechin in green tea and has strong antioxidant as well as anti-inflammatory activities and can protect against oxidative stress-induced degenerations. Objective: To study the influence of stress or PM on Al-induced nephrotoxicity and hepatotoxicity in rats, as well as on the potential role of EGCG in providing protection. Methods: Rats received daily AlCl3 (70 mg/kg, IP) for three weeks (Al-toxicity groups) except one normal control group received saline. Al-toxicity groups were divided into four treated and four untreated groups; treated rats received EGCG (10 mg/kg, IP) together with AlCl3. One group of both treated and untreated rats served as control for each of them, and the others were subjected to either stress (mild using isolation or high using electric shock) or to PM (10% casein diet). Specimens of liver and kidney were used for assessment of levels of inflammatory mediators as TNF-α, IL6β, nuclear factor kappa B (NF-κB), oxidative stress (MDA, SOD, TAC, NO), Caspase-3 and for DNA fragmentation as well as for histopathological examinations. Biochemical changes were also measured in the serum as total lipids, cholesterol, triglycerides, glucose, proteins, bilirubin, creatinine and urea as well as the level of Alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP) and lactate deshydrogenase (LDH). Results: Nephrotoxicity and hepatotoxicity induced by Al were enhanced in rats exposed to stress and to PM. The influence of stress was more pronounced than PM. Al-toxicity was indicated by the increase in liver and kidney MDA, NO, TNF-α, IL-6β, NF-κB, caspase-3, DNA fragmentation and in ALT, AST, ALP, LDH and total lipids, cholesterol, triglycerides, glucose, proteins, bilirubin, creatinine and urea levels, together with the decrease in total proteins, SOD, TAC. EGCG provided protection against hazards of Al as indicated by the decrease in MDA, NO, TNF-α, IL-6β, NF-κB, caspase-3 and DNA fragmentation as well as in levels of ALT, AST, ALP, LDH and total lipids, cholesterol, triglycerides, glucose, proteins, bilirubin, creatinine and urea in liver and kidney, together with the increase in total proteins, SOD, TAC and confirmed by histopathological examinations. It provided more pronounced protection in high stressful conditions than in mild one than in PM. Conclusion: Stress have a bad impact on Al-induced nephrotoxicity and hepatotoxicity more than PM. Thus it can clarify and maximize the role of EGCG in providing protection. Consequently, administration of EGCG is advised with excessive Al-exposure to avoid nephrotoxicity and hepatotoxicity especially in populations more subjected to stress or PM. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=aluminum" title="aluminum">aluminum</a>, <a href="https://publications.waset.org/abstracts/search?q=stress" title=" stress"> stress</a>, <a href="https://publications.waset.org/abstracts/search?q=protein%20malnutrition" title=" protein malnutrition"> protein malnutrition</a>, <a href="https://publications.waset.org/abstracts/search?q=nephrotoxicity" title=" nephrotoxicity"> nephrotoxicity</a>, <a href="https://publications.waset.org/abstracts/search?q=hepatotoxicity" title=" hepatotoxicity"> hepatotoxicity</a>, <a href="https://publications.waset.org/abstracts/search?q=epigallocatechin-3-gallate" title=" epigallocatechin-3-gallate"> epigallocatechin-3-gallate</a>, <a href="https://publications.waset.org/abstracts/search?q=rats" title=" rats"> rats</a> </p> <a href="https://publications.waset.org/abstracts/63185/impact-of-stress-and-protein-malnutrition-on-the-potential-role-of-epigallocatechin-3-gallate-in-providing-protection-from-nephrotoxicity-and-hepatotoxicity-induced-by-aluminum-in-rats" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/63185.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">307</span> </span> </div> </div> </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 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Search results for: El Shaer M.