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Torki</title> <meta name="description" content="Search results for: Akram Torki"> <meta name="keywords" content="Akram Torki"> <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="Akram Torki"> <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> 105</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Akram Torki</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">105</span> Isotherm Study of Modified Zeolite in Sorption of Naphthalene from Water Sample</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Homayon%20Ahmad%20Panahi">Homayon Ahmad Panahi</a>, <a href="https://publications.waset.org/abstracts/search?q=Amir%20Hesam%20Hassani"> Amir Hesam Hassani</a>, <a href="https://publications.waset.org/abstracts/search?q=Akram%20Torki"> Akram Torki</a>, <a href="https://publications.waset.org/abstracts/search?q=Elham%20Moniri"> Elham Moniri</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A new sorbent was synthesized through chemical modification of clinoptilolite zeolite using 2-naphtol, and characterized with fourier transform infrared spectroscopy and elemental analysis methods and applied for the removal and elimination of trace naphthalene from water samples. The optimum pH value for sorption of the naphthalene by modified zeolite was in acidic pH. The sorption capacity of modified zeolite was 142 mg. g−1. Isotherm models, Langmuir, Frendlich and Temkin were employed to analyze the adsorption capacity of modified zeolite, which revealed that naphthalene adsorption by this zeolite follows Langmuir model. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=zeolite" title="zeolite">zeolite</a>, <a href="https://publications.waset.org/abstracts/search?q=clinoptilolite" title=" clinoptilolite"> clinoptilolite</a>, <a href="https://publications.waset.org/abstracts/search?q=modification" title=" modification"> modification</a>, <a href="https://publications.waset.org/abstracts/search?q=naphthalene" title=" naphthalene"> naphthalene</a> </p> <a href="https://publications.waset.org/abstracts/35383/isotherm-study-of-modified-zeolite-in-sorption-of-naphthalene-from-water-sample" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/35383.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">490</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">104</span> Comparative Analysis of Chemical Composition of Two Ecotypes of Achillea wilhelmsii in Iran</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=L.%20Amjad">L. Amjad</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Torki"> M. Torki</a>, <a href="https://publications.waset.org/abstracts/search?q=F.%20Yazdani"> F. Yazdani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The genus Achillea belongs to Asteraceae family. This plant is widely found in different regions of Iran and used for treatment of different diseases. The aim of this study was to evaluate the chemical composition of Achillea wilhelmsii in Iran. The aerial parts of A. wilhelmsii collected from Shahrekord and Mazandaran Province, Iran and they were analyzed by using GC/MS. The 23, 13 compounds were identified in dried aerial parts of A. wilhelmsii from Shahrekord and Mazandaran, respectively. The major components in Shahrekord were: 1,8-Cineole (35.532%), α-pinene (22.885%), Camphor (12.238%), Camphene (8.691%), Piperitol (3.748%), Ethanone (2.274%) and The major components in Mazandaran were: 1,8-Cineole (52.951%), α-pinene (13.985%), Camphor (11.824%), Camphene (8.531%), Terpineol (2.533%), α-Thujone (2.330%). According to the results, difference in essential oil components of Achillea species in different regions may be due to the several factors that leads to change in compositions of plant. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=achillea%20wilhelmsii" title="achillea wilhelmsii">achillea wilhelmsii</a>, <a href="https://publications.waset.org/abstracts/search?q=essential%20oils" title=" essential oils"> essential oils</a>, <a href="https://publications.waset.org/abstracts/search?q=GC%2FMS" title=" GC/MS"> GC/MS</a> </p> <a href="https://publications.waset.org/abstracts/38033/comparative-analysis-of-chemical-composition-of-two-ecotypes-of-achillea-wilhelmsii-in-iran" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/38033.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">366</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">103</span> Automated Localization of Palpebral Conjunctiva and Hemoglobin Determination Using Smart Phone Camera</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Faraz%20Tahir">Faraz Tahir</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Usman%20Akram"> M. Usman Akram</a>, <a href="https://publications.waset.org/abstracts/search?q=Albab%20Ahmad%20Khan"> Albab Ahmad Khan</a>, <a href="https://publications.waset.org/abstracts/search?q=Mujahid%20Abbass"> Mujahid Abbass</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmad%20Tariq"> Ahmad Tariq</a>, <a href="https://publications.waset.org/abstracts/search?q=Nuzhat%20Qaiser"> Nuzhat Qaiser</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The objective of this study was to evaluate the Degree of anemia by taking the picture of the palpebral conjunctiva using Smartphone Camera. We have first localized the region of interest from the image and then extracted certain features from that Region of interest and trained SVM classifier on those features and then, as a result, our system classifies the image in real-time on their level of hemoglobin. The proposed system has given an accuracy of 70%. We have trained our classifier on a locally gathered dataset of 30 patients. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=anemia" title="anemia">anemia</a>, <a href="https://publications.waset.org/abstracts/search?q=palpebral%20conjunctiva" title=" palpebral conjunctiva"> palpebral conjunctiva</a>, <a href="https://publications.waset.org/abstracts/search?q=SVM" title=" SVM"> SVM</a>, <a href="https://publications.waset.org/abstracts/search?q=smartphone" title=" smartphone"> smartphone</a> </p> <a href="https://publications.waset.org/abstracts/50643/automated-localization-of-palpebral-conjunctiva-and-hemoglobin-determination-using-smart-phone-camera" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/50643.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">505</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">102</span> Evolution of Multimodulus Algorithm Blind Equalization Based on Recursive Least Square Algorithm</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sardar%20Ameer%20Akram%20Khan">Sardar Ameer Akram Khan</a>, <a href="https://publications.waset.org/abstracts/search?q=Shahzad%20Amin%20Sheikh"> Shahzad Amin Sheikh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Blind equalization is an important technique amongst equalization family. Multimodulus algorithms based on blind equalization removes the undesirable effects of ISI and cater ups the phase issues, saving the cost of rotator at the receiver end. In this paper a new algorithm combination of recursive least square and Multimodulus algorithm named as RLSMMA is proposed by providing few assumption, fast convergence and minimum Mean Square Error (MSE) is achieved. The excellence of this technique is shown in the simulations presenting MSE plots and the resulting filter results. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=blind%20equalizations" title="blind equalizations">blind equalizations</a>, <a href="https://publications.waset.org/abstracts/search?q=constant%20modulus%20algorithm" title=" constant modulus algorithm"> constant modulus algorithm</a>, <a href="https://publications.waset.org/abstracts/search?q=multi-modulus%20algorithm" title=" multi-modulus algorithm"> multi-modulus algorithm</a>, <a href="https://publications.waset.org/abstracts/search?q=recursive%20%20least%20square%20algorithm" title=" recursive least square algorithm"> recursive least square algorithm</a>, <a href="https://publications.waset.org/abstracts/search?q=quadrature%20amplitude%20modulation%20%28QAM%29" title=" quadrature amplitude modulation (QAM)"> quadrature amplitude modulation (QAM)</a> </p> <a href="https://publications.waset.org/abstracts/24704/evolution-of-multimodulus-algorithm-blind-equalization-based-on-recursive-least-square-algorithm" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/24704.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">644</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">101</span> The Islamic Grand Tour: The Case of Caravan Hajj Routes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Akram%20Atef%20Rawshdeh">Akram Atef Rawshdeh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This research aims to prove the role of Islamic pilgrimage caravans in formulating the concept of the tourism industry and the concept of Grand Tours before that which was found in Europe in the medieval and modern Ages, through its duration and the number of tourists who participated in it and its role in providing tourism services from the establishment of castles and inns that were built To accommodate pilgrims during their travels from different regions of the Islamic world to the holy places in Saudi Arabia, as well as food and beverage services, transportation and support services like tourist security and tourist guide services. This research will depend on the historical method <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=grand%20tour" title="grand tour">grand tour</a>, <a href="https://publications.waset.org/abstracts/search?q=hajj%20caravan%20routes" title=" hajj caravan routes"> hajj caravan routes</a>, <a href="https://publications.waset.org/abstracts/search?q=tourism%20services" title=" tourism services"> tourism services</a>, <a href="https://publications.waset.org/abstracts/search?q=transportation" title=" transportation"> transportation</a> </p> <a href="https://publications.waset.org/abstracts/156819/the-islamic-grand-tour-the-case-of-caravan-hajj-routes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/156819.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">164</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">100</span> Flood Scenarios for Hydrological and Hydrodynamic Modelling</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Sharif%20Imam%20Ibne%20Amir">M. Sharif Imam Ibne Amir</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Masud%20Kamal%20Khan"> Mohammad Masud Kamal Khan</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Golam%20Rasul"> Mohammad Golam Rasul</a>, <a href="https://publications.waset.org/abstracts/search?q=Raj%20H.%20Sharma"> Raj H. Sharma</a>, <a href="https://publications.waset.org/abstracts/search?q=Fatema%20Akram"> Fatema Akram </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Future flood can be predicted using the probable maximum flood (PMF). PMF is calculated using the historical discharge or rainfall data considering the other climatic parameter stationary. However, climate is changing globally and the key climatic variables are temperature, evaporation, rainfall and sea level rise (SLR). To develop scenarios to a basin or catchment scale these important climatic variables should be considered. Nowadays scenario based on climatic variables is more suitable than PMF. Six scenarios were developed for a large Fitzroy basin and presented in this paper. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=climate%20change" title="climate change">climate change</a>, <a href="https://publications.waset.org/abstracts/search?q=rainfall" title=" rainfall"> rainfall</a>, <a href="https://publications.waset.org/abstracts/search?q=potential%20evaporation" title=" potential evaporation"> potential evaporation</a>, <a href="https://publications.waset.org/abstracts/search?q=scenario" title=" scenario"> scenario</a>, <a href="https://publications.waset.org/abstracts/search?q=sea%20level%20rise%20%28SLR%29" title=" sea level rise (SLR)"> sea level rise (SLR)</a>, <a href="https://publications.waset.org/abstracts/search?q=sub-catchment" title=" sub-catchment"> sub-catchment</a> </p> <a href="https://publications.waset.org/abstracts/17875/flood-scenarios-for-hydrological-and-hydrodynamic-modelling" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/17875.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">531</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">99</span> Development of Impervious Concrete Using Micro Silica and GGBS as Cement Replacement Materials</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Muhammad%20Rizwan%20Akram">Muhammad Rizwan Akram</a>, <a href="https://publications.waset.org/abstracts/search?q=Saim%20Raza"> Saim Raza</a>, <a href="https://publications.waset.org/abstracts/search?q=Hamza%20Hanif%20Chauhan"> Hamza Hanif Chauhan </a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper describes the aim of research to evaluate the performance of ordinary Portland concretes containing cement replacement materials in both binary and ternary system. Blocks of concrete were prepared to have a constant water-binder ratio of 0.30. The test variables included the type and the amount of the supplementary cementious materials (SCMs) such as class of Silica Fume (SF) and ground granulated blast furnace slag (GGBS). Portland cement was replaced with Silica Fume (SF) upto 7.5% and GGBS up to a level of 50%. Then physical properties are assessed from the compressive strength and permeability tests. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=silica%20fume" title="silica fume">silica fume</a>, <a href="https://publications.waset.org/abstracts/search?q=GGBS" title=" GGBS"> GGBS</a>, <a href="https://publications.waset.org/abstracts/search?q=compressive%20strength" title=" compressive strength"> compressive strength</a>, <a href="https://publications.waset.org/abstracts/search?q=permeability" title=" permeability "> permeability </a> </p> <a href="https://publications.waset.org/abstracts/44752/development-of-impervious-concrete-using-micro-silica-and-ggbs-as-cement-replacement-materials" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/44752.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">377</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">98</span> Renal Angiomyolipoma Rupture Following COVID-19 Infection: A Case Report</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohammed%20Abdurabu">Mohammed Abdurabu</a>, <a href="https://publications.waset.org/abstracts/search?q=Akram%20Al-Warqi"> Akram Al-Warqi</a>, <a href="https://publications.waset.org/abstracts/search?q=Ebrahim%20M.%20A.%20Ebrahim"> Ebrahim M. A. Ebrahim</a>, <a href="https://publications.waset.org/abstracts/search?q=Jouhar%20Kollari"> Jouhar Kollari</a>, <a href="https://publications.waset.org/abstracts/search?q=Salman%20Mirza"> Salman Mirza</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The novel coronavirus (COVID-19) is one of the most recent pandemics that invaded earth that left and still leaving hundreds of thousands of patients and ended with high morbidity and mortality rates with no clear cure till this moment. COVID-19 has been proven to be associated with pathologic changes in coagulation, characterized by either thromboembolic or bleeding events. We present this case of a 44-year-old male patient that presented to our Emergency Department with flank pain that later was found to have renal angiomyolipoma (AML) rupture during his COVID-19 infection, ultimately requiring admission for hemorrhage control via Interventional Radiology (IR) drainage. Here, we discuss the role of the front-line physicians and how they should keep a low threshold for the different presentations that could be associated with COVID-19 infection. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=angiomyolipoma" title="angiomyolipoma">angiomyolipoma</a>, <a href="https://publications.waset.org/abstracts/search?q=COVID-19" title=" COVID-19"> COVID-19</a>, <a href="https://publications.waset.org/abstracts/search?q=renal" title=" renal"> renal</a>, <a href="https://publications.waset.org/abstracts/search?q=rupture" title=" rupture"> rupture</a> </p> <a href="https://publications.waset.org/abstracts/154529/renal-angiomyolipoma-rupture-following-covid-19-infection-a-case-report" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/154529.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">131</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">97</span> Residual Life Prediction for a System Subject to Condition Monitoring and Two Failure Modes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Akram%20Khaleghei">Akram Khaleghei</a>, <a href="https://publications.waset.org/abstracts/search?q=Ghosheh%20Balagh"> Ghosheh Balagh</a>, <a href="https://publications.waset.org/abstracts/search?q=Viliam%20Makis"> Viliam Makis</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, we investigate the residual life prediction problem for a partially observable system subject to two failure modes, namely a catastrophic failure and a failure due to the system degradation. The system is subject to condition monitoring and the degradation process is described by a hidden Markov model with unknown parameters. The parameter estimation procedure based on an EM algorithm is developed and the formulas for the conditional reliability function and the mean residual life are derived, illustrated by a numerical example. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=partially%20observable%20system" title="partially observable system">partially observable system</a>, <a href="https://publications.waset.org/abstracts/search?q=hidden%20Markov%20model" title=" hidden Markov model"> hidden Markov model</a>, <a href="https://publications.waset.org/abstracts/search?q=competing%20risks" title=" competing risks"> competing risks</a>, <a href="https://publications.waset.org/abstracts/search?q=residual%20life%20prediction" title=" residual life prediction"> residual life prediction</a> </p> <a href="https://publications.waset.org/abstracts/6352/residual-life-prediction-for-a-system-subject-to-condition-monitoring-and-two-failure-modes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/6352.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">415</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">96</span> An Investigation of Etiology of Liver Cirrhosis and Its Complications with Other Co-morbid Diseases</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Tayba%20Akram">Tayba Akram</a> </p> <p class="card-text"><strong>Abstract:</strong></p> our main objective of this study is to work on the etiology of liver cirrhosis, to find basic reasons and causes of liver damage, and to find the pattern of liver cirrhosis in hepatic patients either suffering from hepatitis B/C or simple jaundice. We can evaluate medical treatment and the latest trends in patients suffering from liver cirrhosis. We can evaluate the side effects and adverse effects induced by drug therapy used to treat liver cirrhosis. The conclusion is based on the etiology of liver cirrhosis. The most common cause of liver cirrhosis is the viral Hepatitis C virus. Other common causes of liver cirrhosis that are estimated from our research are Hepatitis B virus, Diabetes Mellitus, Ascites, and very rarely found Hepatitis D virus. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=etiology" title="etiology">etiology</a>, <a href="https://publications.waset.org/abstracts/search?q=liver" title=" liver"> liver</a>, <a href="https://publications.waset.org/abstracts/search?q=cirrhosis" title=" cirrhosis"> cirrhosis</a>, <a href="https://publications.waset.org/abstracts/search?q=co-morbid%20diseases" title=" co-morbid diseases"> co-morbid diseases</a> </p> <a href="https://publications.waset.org/abstracts/193100/an-investigation-of-etiology-of-liver-cirrhosis-and-its-complications-with-other-co-morbid-diseases" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/193100.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">14</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">95</span> Interest Rate of Managers and Tourism Officials over E-Tourism Development: Case Study of Lenjan City</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Akram%20Shahriyari">Akram Shahriyari</a>, <a href="https://publications.waset.org/abstracts/search?q=Reza%20Mokhtari%20Malek%20Abadi"> Reza Mokhtari Malek Abadi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> E-tourism is among the issues that have recently been entered into the field of tourism. In order to achieve this type of tourism, Information and Communications Technology (or ICT) infrastructures as well as Co-governmental organizations and tourism resources are important. In this study, the opinions of managers and tourism officials about the e-tourism in Lenjan city were measured; it also surveyed the impact of level of digital literacy of managers and tourism officials on attracting tourists in Lenjan city. This study was conducted in Lenjan, one of the environs of the Esfahan province. This study is a documentary – survey and the sources include library resources and also questionnaires. The results obtained indicate that if managers use ICT, it may help e-tourism to be developed in the region, and increasing managers’ beliefs on e-tourism and upgrading their level of digital literacy may affect e-tourism development. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ICT" title="ICT">ICT</a>, <a href="https://publications.waset.org/abstracts/search?q=e-tourism" title=" e-tourism"> e-tourism</a>, <a href="https://publications.waset.org/abstracts/search?q=opinion%20of%20managers%20and%20officials" title=" opinion of managers and officials"> opinion of managers and officials</a>, <a href="https://publications.waset.org/abstracts/search?q=Lejnan" title=" Lejnan"> Lejnan</a> </p> <a href="https://publications.waset.org/abstracts/1718/interest-rate-of-managers-and-tourism-officials-over-e-tourism-development-case-study-of-lenjan-city" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/1718.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">435</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">94</span> Formulation and Evaluation of Piroxicam Hydrotropic Starch Gel</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohammed%20Ghazwani">Mohammed Ghazwani</a>, <a href="https://publications.waset.org/abstracts/search?q=Shyma%20Ali%20Alshahrani"> Shyma Ali Alshahrani</a>, <a href="https://publications.waset.org/abstracts/search?q=Zahra%20Abdu%20Yousef"> Zahra Abdu Yousef</a>, <a href="https://publications.waset.org/abstracts/search?q=Taif%20Torki%20Asiri"> Taif Torki Asiri</a>, <a href="https://publications.waset.org/abstracts/search?q=Ghofran%20Abdur%20Rahman"> Ghofran Abdur Rahman</a>, <a href="https://publications.waset.org/abstracts/search?q=Asma%20Ali%20Alshahrani"> Asma Ali Alshahrani</a>, <a href="https://publications.waset.org/abstracts/search?q=Umme%20Hani"> Umme Hani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background and introduction: Piroxicam is a nonsteroidal anti-inflammatory drug characterized by low solubility-high permeability used to reduce pain, swelling, and joint stiffness from arthritis. Hydrotropes are a class of compounds that normally increase the aqueous solubility of insoluble solutes. Aim: The objective of the present research study was to formulate and optimize Piroxicam hydrotropic starch gel using sodium salicylate, sodium benzoate as hydrotropic salts, and potato starch for topical application. Materials and methods: The prepared Piroxicam hydrotropic starch gel was characterized for various physicochemical parameters like drug content estimation, pH, tube extrudability, and spreadability; all the prepared formulations were subjected to in-vitro diffusion studies for six hours in 100 ml phosphate buffer (pH 7.4) and determined gel strength. Results: All formulations were found to be white opaque in appearance and have good homogeneity. The pH of formulations was found to be between 6.9-7.9. Drug content ranged from 96.8%-99.4.5%. Spreadability plays an important role in patient compliance and helps in the uniform application of gel to the skin as gels should spread easily; F4 showed a spreadability of 2.4cm highest among all other formulations. In in vitro diffusion studies, extrudability and gel strength were good with F4 in comparison with other formulations; hence F4 was selected as the optimized formulation. Conclusion: Isolated potato starch was successfully employed to prepare the gel. Hydrotropic salt sodium salicylate increased the solubility of Piroxicam and resulted in a stable gel, whereas the gel prepared using sodium benzoate changed its color after one week of preparation from white to light yellowish. Hydrotropic potato starch gel proposed a suitable vehicle for the topical delivery of Piroxicam. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Piroxicam" title="Piroxicam">Piroxicam</a>, <a href="https://publications.waset.org/abstracts/search?q=potato%20starch" title=" potato starch"> potato starch</a>, <a href="https://publications.waset.org/abstracts/search?q=hydrotropic%20salts" title=" hydrotropic salts"> hydrotropic salts</a>, <a href="https://publications.waset.org/abstracts/search?q=hydrotropic%20starch%20gel" title=" hydrotropic starch gel"> hydrotropic starch gel</a> </p> <a href="https://publications.waset.org/abstracts/157199/formulation-and-evaluation-of-piroxicam-hydrotropic-starch-gel" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/157199.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">145</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">93</span> An Optimal Bayesian Maintenance Policy for a Partially Observable System Subject to Two Failure Modes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Akram%20Khaleghei%20Ghosheh%20Balagh">Akram Khaleghei Ghosheh Balagh</a>, <a href="https://publications.waset.org/abstracts/search?q=Viliam%20Makis"> Viliam Makis</a>, <a href="https://publications.waset.org/abstracts/search?q=Leila%20Jafari"> Leila Jafari</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, we present a new maintenance model for a partially observable system subject to two failure modes, namely a catastrophic failure and a failure due to the system degradation. The system is subject to condition monitoring and the degradation process is described by a hidden Markov model. A cost-optimal Bayesian control policy is developed for maintaining the system. The control problem is formulated in the semi-Markov decision process framework. An effective computational algorithm is developed and illustrated by a numerical example. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=partially%20observable%20system" title="partially observable system">partially observable system</a>, <a href="https://publications.waset.org/abstracts/search?q=hidden%20Markov%20model" title=" hidden Markov model"> hidden Markov model</a>, <a href="https://publications.waset.org/abstracts/search?q=competing%20risks" title=" competing risks"> competing risks</a>, <a href="https://publications.waset.org/abstracts/search?q=multivariate%20Bayesian%20control" title=" multivariate Bayesian control"> multivariate Bayesian control</a> </p> <a href="https://publications.waset.org/abstracts/12740/an-optimal-bayesian-maintenance-policy-for-a-partially-observable-system-subject-to-two-failure-modes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/12740.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">457</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">92</span> TNF-Kinoid® in Autoimmune Diseases</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yahia%20Massinissa">Yahia Massinissa</a>, <a href="https://publications.waset.org/abstracts/search?q=Melakhessou%20Med%20Akram"> Melakhessou Med Akram</a>, <a href="https://publications.waset.org/abstracts/search?q=Mezahdia%20Mehdi"> Mezahdia Mehdi</a>, <a href="https://publications.waset.org/abstracts/search?q=Marref%20Salah%20Eddine"> Marref Salah Eddine</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Cytokines are natural proteins which act as true intercellular communication signals in immune and inflammatory responses. Reverse signaling pathways that activate cytokines help to regulate different functions at the target cell, causing its activation, its proliferation, the differentiation, its survival or death. It was shown that malfunctioning of the cytokine regulation, particularly over-expression, contributes to the onset and development of certain serious diseases such as chronic rheumatoid arthritis, Crohn's disease, psoriasis, lupus. The action mode of Kinoid® technology is based on the principle vaccine: The patient's immune system is activated so that it neutralizes itself and the factor responsible for the disease. When applied specifically to autoimmune diseases, therapeutic vaccination allows the body to neutralize cytokines (proteins) overproduced through a highly targeted stimulation of the immune system. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cytokines" title="cytokines">cytokines</a>, <a href="https://publications.waset.org/abstracts/search?q=Kinoid%20tech" title=" Kinoid tech"> Kinoid tech</a>, <a href="https://publications.waset.org/abstracts/search?q=auto-immune%20diseases" title=" auto-immune diseases"> auto-immune diseases</a>, <a href="https://publications.waset.org/abstracts/search?q=vaccination" title=" vaccination"> vaccination</a> </p> <a href="https://publications.waset.org/abstracts/7515/tnf-kinoid-in-autoimmune-diseases" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/7515.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">337</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">91</span> In Search of Bauman’s Moral Impulse in Shadow Factories of China </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Akram%20Hatami">Akram Hatami</a>, <a href="https://publications.waset.org/abstracts/search?q=Naser%20Firoozi"> Naser Firoozi</a>, <a href="https://publications.waset.org/abstracts/search?q=Vesa%20Puhakka"> Vesa Puhakka</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Ethics and responsibility are rapidly becoming a distinguishing feature of organizations. In this paper, we analyze ethics and responsibility in shadow factories in China. We engage ourselves with Bauman’s moral impulse perspective because his idea can contextualize ethics and responsibility. Moral impulse is a feeling of a selfless, infinite and unconditional responsibility towards, and care for, Others. We analyze a case study from a secondary data source because, for such a critical phenomenon as business ethics in shadow factories, collecting primary data is difficult, since they are unregistered factories. We argue that there has not been enough attention given to the ethics and responsibility in shadow factories in China. Our main goal is to demonstrate that, considering the Other, more importantly the employees, in ethical decision-making is a simple instruction beyond the narrow version of ethics by ethical codes and rules. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=moral%20impulse" title="moral impulse">moral impulse</a>, <a href="https://publications.waset.org/abstracts/search?q=responsibility" title=" responsibility"> responsibility</a>, <a href="https://publications.waset.org/abstracts/search?q=shadow%20factories" title=" shadow factories"> shadow factories</a>, <a href="https://publications.waset.org/abstracts/search?q=Bauman%E2%80%99s%20moral%20impulse" title=" Bauman’s moral impulse"> Bauman’s moral impulse</a> </p> <a href="https://publications.waset.org/abstracts/84339/in-search-of-baumans-moral-impulse-in-shadow-factories-of-china" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/84339.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">329</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">90</span> Morphology Study of Inverted Planar Heterojunction Perovskite Solar Cells in Sequential Deposition</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Asmat%20Nawaz">Asmat Nawaz</a>, <a href="https://publications.waset.org/abstracts/search?q=Ali%20Koray%20Erdinc"> Ali Koray Erdinc</a>, <a href="https://publications.waset.org/abstracts/search?q=Burak%20Gultekin"> Burak Gultekin</a>, <a href="https://publications.waset.org/abstracts/search?q=Muhammad%20Tayyib"> Muhammad Tayyib</a>, <a href="https://publications.waset.org/abstracts/search?q=Ceylan%20Zafer"> Ceylan Zafer</a>, <a href="https://publications.waset.org/abstracts/search?q=Kaiying%20Wang"> Kaiying Wang</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Nadeem%20Akram"> M. Nadeem Akram</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, a sequential deposition process is used for the fabrication of PEDOT: PSS based inverted planar perovskite solar cell. A small amount of additive deionized water (DI-H<sub>2</sub>O) was added into PbI<sub>2</sub> + Dimethyl formamide (DMF) precursor solution in order to increase the solubility of PbI<sub>2</sub> in DMF, and finally to manipulate the surface morphology of the perovskite films. A morphology transition from needle like structure to hexagonal plates, and then needle-like again has been observed as the DI-H2O was added continuously (0.0 wt% to 3.0wt%). The latter one leads to full surface coverage of the perovskite, which is essential for high performance solar cell. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=charge%20carrier%20diffusion%20lengths" title="charge carrier diffusion lengths">charge carrier diffusion lengths</a>, <a href="https://publications.waset.org/abstracts/search?q=Methylamonium%20lead%20iodide" title=" Methylamonium lead iodide"> Methylamonium lead iodide</a>, <a href="https://publications.waset.org/abstracts/search?q=precursor%20composition" title=" precursor composition"> precursor composition</a>, <a href="https://publications.waset.org/abstracts/search?q=perovskite%20solar%20cell" title=" perovskite solar cell"> perovskite solar cell</a>, <a href="https://publications.waset.org/abstracts/search?q=sequential%20deposition" title=" sequential deposition"> sequential deposition</a> </p> <a href="https://publications.waset.org/abstracts/54517/morphology-study-of-inverted-planar-heterojunction-perovskite-solar-cells-in-sequential-deposition" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/54517.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">89</span> Toward a New Approach for Modeling Lean, Agile and Leagile Supply Chains</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bouchra%20Abdelilah">Bouchra Abdelilah</a>, <a href="https://publications.waset.org/abstracts/search?q=Akram%20El%20Korchi"> Akram El Korchi</a>, <a href="https://publications.waset.org/abstracts/search?q=Atmane%20Baddou"> Atmane Baddou</a> </p> <p class="card-text"><strong>Abstract:</strong></p> With the very competitive business era that we witness nowadays, companies needs more that anytime to use all the resources they have in order to maximize performance and satisfy the customers’ needs. The changes occurring in the market business are often due to the variations of demand, which requires a very specific supply chain strategy. Supply chains aims to balance cost, quality, and service level and lead time. Still, managers are confused when faced with the strategies working the best for the supply chain: lean, agile and leagile. This paper presents a decision making tool that aims to assist the manager in choosing the supply chain strategy that suits the most his business, depending on the type of product and the nature of demand. Analyzing the different characteristics of supply chain will enable us to guide the manager to the suitable strategy between lean, agile and leagile. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=supply%20chain" title="supply chain">supply chain</a>, <a href="https://publications.waset.org/abstracts/search?q=lean" title=" lean"> lean</a>, <a href="https://publications.waset.org/abstracts/search?q=agile" title=" agile"> agile</a>, <a href="https://publications.waset.org/abstracts/search?q=flexibility" title=" flexibility"> flexibility</a>, <a href="https://publications.waset.org/abstracts/search?q=performance" title=" performance"> performance</a> </p> <a href="https://publications.waset.org/abstracts/29465/toward-a-new-approach-for-modeling-lean-agile-and-leagile-supply-chains" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/29465.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">859</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">88</span> Laminar Burning Velocity NH₃/H₂+Air Mixtures at Elevated Temperatures and Pressures</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Talal%20Hasan">Talal Hasan</a>, <a href="https://publications.waset.org/abstracts/search?q=Akram%20Mohammad"> Akram Mohammad</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Carbon-free combustion has great attention in today’s research for its unlimited benefits regarding various factors, and ammonia is considered a potential carbon-free alternative gas despite its flame characteristics. The Shrestha mechanism and Chemkin-Pro software will be used for numerical data. Firstly, experimental and numerical results should show good agreement to move for studying the laminar flame speed of ammonia under various conditions. Ammonia flame speed will be investigated under normal conditions (298 K, 1 atm) as well as under the influence of a range of equivalence ratios (0.6-1.8), elevated temperatures (298,323,373,423, and 473), elevated pressures (1 atm- 70 atm) and finally at varying hydrogen content (0-100%). Therefore, this work will understand the ammonia laminar flame speed characteristics and how and to what extent hydrogen can improve ammonia combustion intensity. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=laminar%20burning%20velocity" title="laminar burning velocity">laminar burning velocity</a>, <a href="https://publications.waset.org/abstracts/search?q=ammonia" title=" ammonia"> ammonia</a>, <a href="https://publications.waset.org/abstracts/search?q=hydrogen" title=" hydrogen"> hydrogen</a>, <a href="https://publications.waset.org/abstracts/search?q=combustion" title=" combustion"> combustion</a> </p> <a href="https://publications.waset.org/abstracts/166246/laminar-burning-velocity-nh3h2air-mixtures-at-elevated-temperatures-and-pressures" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/166246.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">107</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">87</span> Flame Dynamics in Small Scale Channels</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohammed%20Mahmoud%20Osman%20Ahmed">Mohammed Mahmoud Osman Ahmed</a>, <a href="https://publications.waset.org/abstracts/search?q=Akram%20Mohammad"> Akram Mohammad</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Flame dynamics in heated quartz glass channels of various aspect ratios (2,5,10,15) were experimentally investigated. A premixed Propane-air mixture was used for the reported experiments. Regarding micro-combustion, flame quenching is considered to be the most crucial problem to overcome first. Experiments were carried out on four channels with different aspect ratios. The results show that at a very low equivalence ratio ϕ=0.4, there is no flame inside the channels. The FREI condition (Flame with repetitive extinction and ignition) was overcome by increasing velocity and by making the channels more in contact with the external heater. The flame tested inside the channels at different locations for V=0.3 m/s or higher below V=0.65 m/s. The effects of equivalence ratio and flow velocity on the characteristics of combustion in the channels were examined. Different ways of flame propagation were observed in the current investigations based on how they appear as planar, concave and convex flames. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=flame%20stabilization" title="flame stabilization">flame stabilization</a>, <a href="https://publications.waset.org/abstracts/search?q=combustion" title=" combustion"> combustion</a>, <a href="https://publications.waset.org/abstracts/search?q=flame%20dynamics" title=" flame dynamics"> flame dynamics</a>, <a href="https://publications.waset.org/abstracts/search?q=small-scale%20channels" title=" small-scale channels"> small-scale channels</a>, <a href="https://publications.waset.org/abstracts/search?q=external%20heater" title=" external heater"> external heater</a> </p> <a href="https://publications.waset.org/abstracts/166106/flame-dynamics-in-small-scale-channels" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/166106.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">228</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">86</span> An Investigation on Interactions between Social Security with Police Operation and Economics in the Field of Tourism</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Mahdi%20Namdari">Mohammad Mahdi Namdari</a>, <a href="https://publications.waset.org/abstracts/search?q=Hosein%20Torki"> Hosein Torki</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Security as an abstract concept, has involved human being from the beginning of creation to the present, and certainly to the future. Accordingly, battles, conflicts, challenges, legal proceedings, crimes and all issues related to human kind are associated with this concept. Today by interviewing people about their life, the security of societies and Social crimes are interviewed too. Along with the security as an infrastructure and vital concept, the economy and related issues e.g. welfare, per capita income, total government revenue, export, import and etc. is considered another infrastructure and vital concept. These two vital concepts (Security and Economic) have linked together complexly and significantly. The present study employs analytical-descriptive research method using documents and Statistics of official sources. Discovery and explanation of this mutual connection are comprising a profound and extensive research; so management, development and reform in system and relationships of the scope of this two concepts are complex and difficult. Tourism and its position in today's economy is one of the main pillars of the economy of the 21st century that maybe associate with the security and social crimes more than other pillars. Like all human activities, economy of societies and partially tourism dependent on security especially in the public and social security. On the other hand, the true economic development (generally) and the growth of the tourism industry (dedicated) are a security generating and supporting for it, because a dynamic economic infrastructure prevents the formation of centers of crime and illegal activities by providing a context for socio-economic development for all segments of society in a fair and humane. This relationship is a formula of the complexity between the two concept of economy and security. Police as a revealed or people-oriented organization in the field of security directly has linked with the economy of a community and is very effective In the face of the tourism industry. The relationship between security and national crime index, and economic indicators especially ones related to tourism is confirming above discussion that is notable. According to understanding processes about security and economic as two key and vital concepts are necessary and significant for sovereignty of governments. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=economic" title="economic">economic</a>, <a href="https://publications.waset.org/abstracts/search?q=police" title=" police"> police</a>, <a href="https://publications.waset.org/abstracts/search?q=tourism" title=" tourism"> tourism</a>, <a href="https://publications.waset.org/abstracts/search?q=social%20security" title=" social security"> social security</a> </p> <a href="https://publications.waset.org/abstracts/44498/an-investigation-on-interactions-between-social-security-with-police-operation-and-economics-in-the-field-of-tourism" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/44498.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">321</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">85</span> Peristaltic Transport of a Jeffrey Fluid with Double-Diffusive Convection in Nanofluids in the Presence of Inclined Magnetic Field</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Safia%20Akram">Safia Akram</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this article, the effects of peristaltic transport with double-diffusive convection in nanofluids through an asymmetric channel with different waveforms is presented. Mathematical modelling for two-dimensional and two directional flows of a Jeffrey fluid model along with double-diffusive convection in nanofluids are given. Exact solutions are obtained for nanoparticle fraction field, concentration field, temperature field, stream functions, pressure gradient and pressure rise in terms of axial and transverse coordinates under the restrictions of long wavelength and low Reynolds number. With the help of computational and graphical results the effects of Brownian motion, thermophoresis, Dufour, Soret, and Grashof numbers (thermal, concentration, nanoparticles) on peristaltic flow patterns with double-diffusive convection are discussed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=nanofluid%20particles" title="nanofluid particles">nanofluid particles</a>, <a href="https://publications.waset.org/abstracts/search?q=peristaltic%20flow" title=" peristaltic flow"> peristaltic flow</a>, <a href="https://publications.waset.org/abstracts/search?q=Jeffrey%20fluid" title=" Jeffrey fluid"> Jeffrey fluid</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20field" title=" magnetic field"> magnetic field</a>, <a href="https://publications.waset.org/abstracts/search?q=asymmetric%20channel" title=" asymmetric channel"> asymmetric channel</a>, <a href="https://publications.waset.org/abstracts/search?q=different%20waveforms" title=" different waveforms"> different waveforms</a> </p> <a href="https://publications.waset.org/abstracts/71169/peristaltic-transport-of-a-jeffrey-fluid-with-double-diffusive-convection-in-nanofluids-in-the-presence-of-inclined-magnetic-field" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/71169.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">381</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">84</span> Scanning Electrochemical Microscopy Studies of Magnesium-Iron Galvanic Couple</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Akram%20Alfantazi">Akram Alfantazi</a>, <a href="https://publications.waset.org/abstracts/search?q=Tirdad%20Nickchi"> Tirdad Nickchi </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Magnesium galvanic corrosion plays an important role in the commercialization of Mg alloys in the automobile industry. This study aims at visualizing the electrochemical activity of the magnesium surface being coupled with pure iron in sulfate-chloride solutions. Scanning electrochemical microscopy was used to monitor the chemical activity of the surface and the data was compared with the conventional corrosion results such as potentiodynamic polarization, linear polarization, and immersion tests. The SECM results showed that the chemical reactivity of Mg is higher than phosphate-permanganate-coated Mg. Regions in the vicinity of the galvanic couple boundary are very active in the magnesium phase and fully protected in the iron phase. Scanning electrochemical microscopy results showed that the conversion coating provided good corrosion resistance for magnesium in the short-term but fails at long-term testing. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=corrosion" title="corrosion">corrosion</a>, <a href="https://publications.waset.org/abstracts/search?q=galvanic%20corrosion" title=" galvanic corrosion"> galvanic corrosion</a>, <a href="https://publications.waset.org/abstracts/search?q=magnesium" title=" magnesium"> magnesium</a>, <a href="https://publications.waset.org/abstracts/search?q=scanning%20electrochemical%20microscopy" title=" scanning electrochemical microscopy"> scanning electrochemical microscopy</a> </p> <a href="https://publications.waset.org/abstracts/92833/scanning-electrochemical-microscopy-studies-of-magnesium-iron-galvanic-couple" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/92833.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">288</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">83</span> Mediation as an Effective Tool for Resolving Sports Disputes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohd%20Akram%20Shair%20Mohamad">Mohd Akram Shair Mohamad</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The relation to the infinite variety issues sprouting in sports or lex sportiva, like lex mercatoria in the early centuries, has now come of age and even begun a maturing process in the past thirty-five years or so. Lex sportiva now straddles sports management, sports medicine, tort, criminal law, employment contract, competition law and a host of multifarious activities related to sports. This has catapulted a host of legal issue and problems, demanding urgent legal solutions to actual or potential disputes. This paper discusses the nature and development of lex sportiva, and how it is able to resolve sports disputes. Resolving sports dispute via the tiresome, dilatory and expensive process of litigation is most unsuitable. Arbitration may not be equally a satisfactory solution. The paper strongly advocates the far the most effective and resolution friendly mode of settling sports disputes namely, mediation. In support it highlights numerous advantages mediation has to offer and with reference to many significant sports disputes which had been successfully resolved via mediation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=alternative%20dispute%20resolution" title="alternative dispute resolution">alternative dispute resolution</a>, <a href="https://publications.waset.org/abstracts/search?q=mediation" title=" mediation"> mediation</a>, <a href="https://publications.waset.org/abstracts/search?q=arbitration" title=" arbitration"> arbitration</a>, <a href="https://publications.waset.org/abstracts/search?q=litigation" title=" litigation"> litigation</a> </p> <a href="https://publications.waset.org/abstracts/23338/mediation-as-an-effective-tool-for-resolving-sports-disputes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/23338.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">437</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">82</span> Influence of Nanoparticles Phenomena on the Peristaltic Flow of Pseudoplastic Fluid in an Inclined Asymmetric Channel with Different Wave Forms</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Safia%20Akram">Safia Akram</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The influence of nanofluid with different waveforms in the presence of inclined asymmetric channel on peristaltic transport of a pseudoplastic fluid is examined. The governing equations for two-dimensional and two directional flows of a pseudoplastic fluid along with nanofluid are modeled and then simplified under the assumptions of long wavelength and low Reynolds number approximation. The exact solutions for temperature and nanoparticle volume fraction are calculated. Series solution of the stream function and pressure gradient are carried out using perturbation technique. The flow quantities have been examined for various physical parameters of interest. It was found, that the magnitude value of the velocity profile decreases with an increase in volume flow rate (Q) and relaxation times (ζ) and increases in sinusoidal, multisinusoidal, trapezoidal and triangular waves. It was also observed that the size of the trapping bolus decreases with the drop of the width of the channel ‘d’ and increases with a rise of relaxation times ζ. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=nanofluid%20particles" title="nanofluid particles">nanofluid particles</a>, <a href="https://publications.waset.org/abstracts/search?q=peristaltic%20flow" title=" peristaltic flow"> peristaltic flow</a>, <a href="https://publications.waset.org/abstracts/search?q=pseudoplastic%20fluid" title=" pseudoplastic fluid"> pseudoplastic fluid</a>, <a href="https://publications.waset.org/abstracts/search?q=different%20waveforms" title=" different waveforms"> different waveforms</a>, <a href="https://publications.waset.org/abstracts/search?q=inclined%20asymmetric%20channel" title=" inclined asymmetric channel"> inclined asymmetric channel</a> </p> <a href="https://publications.waset.org/abstracts/71251/influence-of-nanoparticles-phenomena-on-the-peristaltic-flow-of-pseudoplastic-fluid-in-an-inclined-asymmetric-channel-with-different-wave-forms" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/71251.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">237</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">81</span> Optical Properties of N-(Hydroxymethyl) Acrylamide Polymer Gel Dosimeters for Radiation Therapy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Khalid%20A.%20Rabaeh">Khalid A. Rabaeh</a>, <a href="https://publications.waset.org/abstracts/search?q=Belal%20Moftah"> Belal Moftah</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20A.%20Basfar"> Ahmed A. Basfar</a>, <a href="https://publications.waset.org/abstracts/search?q=Akram%20A.%20Almousa"> Akram A. Almousa</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Polymer gel dosimeters are tissue equivalent martial that fabricated from radiation sensitive chemicals which, upon irradiation, polymerize as a function of absorbed radiation dose. Polymer gel dosimeters can uniquely record the radiation dose distribution in three-dimensions (3D). A novel composition of normoxic polymer gel dosimeters based on radiation-induced polymerization of N-(Hydroxymethyl)acrylamide (NHMA) is introduced in this study for radiotherapy treatment planning. The dosimeters were irradiated by 10 MV photon beam of a medical linear accelerator at a constant dose rate of 600 cGy/min with doses up to 30 Gy. The polymerization degree is directly proportional to absorbed dose received by the polymer gel. UV/Vis spectrophotometer was used to investigate the degree of white color of irradiated NHMA gel which is associated to the degree of polymerization of polymer gel dosimeters. The absorbance increases with absorbed dose for all gel dosimeters in the dose range between 0 and 30 Gy. Dose rate , energy of radiation and the stability of the polymerization after irradiation were investigated. No appreciable effects of these parameters on the performance of the novel gel dosimeters were observed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dosimeter" title="dosimeter">dosimeter</a>, <a href="https://publications.waset.org/abstracts/search?q=gel" title=" gel"> gel</a>, <a href="https://publications.waset.org/abstracts/search?q=spectrophotometer" title=" spectrophotometer"> spectrophotometer</a>, <a href="https://publications.waset.org/abstracts/search?q=N-%28Hydroxymethyl%29acrylamide" title=" N-(Hydroxymethyl)acrylamide "> N-(Hydroxymethyl)acrylamide </a> </p> <a href="https://publications.waset.org/abstracts/34646/optical-properties-of-n-hydroxymethyl-acrylamide-polymer-gel-dosimeters-for-radiation-therapy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/34646.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">469</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">80</span> Influence of Cationic Surfactant (TTAB) on the Rate of Dipeptide (Gly-DL-Asp) Ninhydrin Reaction in Absence and Presence of Organic Solvents</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohd.%20Akram">Mohd. Akram</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20A.%20M.%20Saeed"> A. A. M. Saeed</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Surfactants are widely used in our daily life either directly in household and personal care products or indirectly in the industrial processes. The kinetics of the interaction of glycyl-DL-aspartic acid (Gly-DL-Asp) with ninhydrin has been investigated spectrophotometrically in aqueous and organic-solvent media in the absence and presence of cationic surfactant of tetradecyltrimethylammonium bromide (TTAB). The study was carried out under different experimental conditions. The first and fractional order-rate were observed for [Gly-DL-Asp] and [ninhydrin], respectively. The reaction was enhanced about four-fold by TTAB micelles. The effect of organic solvents was studied at a constant concentration of TTAB and showed an increase in the absorbance as well as the rate constant for the formation of product (Ruhemann's purple). The results obtained in micellar media are treated quantitatively in terms of pseudo-phase and Piszkiewicz cooperativity models. The Arrhenius and Eyring equations are valid for the reaction over the range of temperatures used and different activation parameters (Ea, ∆H#, ∆S#, and ∆G#) have been evaluated. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=glycyl-DL-aspartic%20acid" title="glycyl-DL-aspartic acid">glycyl-DL-aspartic acid</a>, <a href="https://publications.waset.org/abstracts/search?q=ninhydrin" title=" ninhydrin"> ninhydrin</a>, <a href="https://publications.waset.org/abstracts/search?q=organic%20solvents" title=" organic solvents"> organic solvents</a>, <a href="https://publications.waset.org/abstracts/search?q=TTAB" title=" TTAB"> TTAB</a> </p> <a href="https://publications.waset.org/abstracts/18950/influence-of-cationic-surfactant-ttab-on-the-rate-of-dipeptide-gly-dl-asp-ninhydrin-reaction-in-absence-and-presence-of-organic-solvents" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/18950.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">79</span> Improved Processing Speed for Text Watermarking Algorithm in Color Images</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hamza%20A.%20Al-Sewadi">Hamza A. Al-Sewadi</a>, <a href="https://publications.waset.org/abstracts/search?q=Akram%20N.%20A.%20Aldakari"> Akram N. A. Aldakari</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Copyright protection and ownership proof of digital multimedia are achieved nowadays by digital watermarking techniques. A text watermarking algorithm for protecting the property rights and ownership judgment of color images is proposed in this paper. Embedding is achieved by inserting texts elements randomly into the color image as noise. The YIQ image processing model is found to be faster than other image processing methods, and hence, it is adopted for the embedding process. An optional choice of encrypting the text watermark before embedding is also suggested (in case required by some applications), where, the text can is encrypted using any enciphering technique adding more difficulty to hackers. Experiments resulted in embedding speed improvement of more than double the speed of other considered systems (such as least significant bit method, and separate color code methods), and a fairly acceptable level of peak signal to noise ratio (PSNR) with low mean square error values for watermarking purposes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=steganography" title="steganography">steganography</a>, <a href="https://publications.waset.org/abstracts/search?q=watermarking" title=" watermarking"> watermarking</a>, <a href="https://publications.waset.org/abstracts/search?q=time%20complexity%20measurements" title=" time complexity measurements"> time complexity measurements</a>, <a href="https://publications.waset.org/abstracts/search?q=private%20keys" title=" private keys"> private keys</a> </p> <a href="https://publications.waset.org/abstracts/85280/improved-processing-speed-for-text-watermarking-algorithm-in-color-images" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/85280.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">143</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">78</span> Exploiting the Potential of Fabric Phase Sorptive Extraction for Forensic Food Safety: Analysis of Food Samples in Cases of Drug Facilitated Crimes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bharti%20Jain">Bharti Jain</a>, <a href="https://publications.waset.org/abstracts/search?q=Rajeev%20Jain"> Rajeev Jain</a>, <a href="https://publications.waset.org/abstracts/search?q=Abuzar%20Kabir"> Abuzar Kabir</a>, <a href="https://publications.waset.org/abstracts/search?q=Torki%20Zughaibi"> Torki Zughaibi</a>, <a href="https://publications.waset.org/abstracts/search?q=Shweta%20Sharma"> Shweta Sharma</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Drug-facilitated crimes (DFCs) entail the use of a single drug or a mixture of drugs to render a victim unable. Traditionally, biological samples have been gathered from victims and conducted analysis to establish evidence of drug administration. Nevertheless, the rapid metabolism of various drugs and delays in analysis can impede the identification of such substances. For this, the present article describes a rapid, sustainable, highly efficient and miniaturized protocol for the identification and quantification of three sedative-hypnotic drugs, namely diazepam, chlordiazepoxide and ketamine in alcoholic beverages and complex food samples (cream of biscuit, flavored milk, juice, cake, tea, sweets and chocolate). The methodology involves utilizing fabric phase sorptive extraction (FPSE) to extract diazepam (DZ), chlordiazepoxide (CDP), and ketamine (KET). Subsequently, the extracted samples are subjected to analysis using gas chromatography-mass spectrometry (GC-MS). Several parameters, including the type of membrane, pH, agitation time and speed, ionic strength, sample volume, elution volume and time, and type of elution solvent, were screened and thoroughly optimized. Sol-gel Carbowax 20M (CW-20M) has demonstrated the most effective extraction efficiency for the target analytes among all evaluated membranes. Under optimal conditions, the method displayed linearity within the range of 0.3–10 µg mL–¹ (or µg g–¹), exhibiting a coefficient of determination (R2) ranging from 0.996–0.999. The limits of detection (LODs) and limits of quantification (LOQs) for liquid samples range between 0.020-0.069 µg mL-¹ and 0.066-0.22 µg mL-¹, respectively. Correspondingly, the LODs for solid samples ranged from 0.056-0.090 µg g-¹, while the LOQs ranged from 0.18-0.29 µg g-¹. Notably, the method showcased better precision, with repeatability and reproducibility both below 5% and 10%, respectively. Furthermore, the FPSE-GC-MS method proved effective in determining diazepam (DZ) in forensic food samples connected to drug-facilitated crimes (DFCs). Additionally, the proposed method underwent evaluation for its whiteness using the RGB12 algorithm. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=drug%20facilitated%20crime" title="drug facilitated crime">drug facilitated crime</a>, <a href="https://publications.waset.org/abstracts/search?q=fabric%20phase%20sorptive%20extraction" title=" fabric phase sorptive extraction"> fabric phase sorptive extraction</a>, <a href="https://publications.waset.org/abstracts/search?q=food%20forensics" title=" food forensics"> food forensics</a>, <a href="https://publications.waset.org/abstracts/search?q=white%20analytical%20chemistry" title=" white analytical chemistry"> white analytical chemistry</a> </p> <a href="https://publications.waset.org/abstracts/174214/exploiting-the-potential-of-fabric-phase-sorptive-extraction-for-forensic-food-safety-analysis-of-food-samples-in-cases-of-drug-facilitated-crimes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/174214.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">70</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">77</span> Comparison Learning Vocabulary Implicitly and Explicitly</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Akram%20Hashemi">Akram Hashemi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study provided an empirical evidence for learners of elementary level of language proficiency to investigate the potential role of contextualization in vocabulary learning. Prior to the main study, pilot study was performed to determine the reliability and validity of the researcher-made pretest and posttest. After manifesting the homogeneity of the participants, the participants (n = 90) were randomly assigned into three equal groups, i.e., two experimental groups and a control group. They were pretested by a vocabulary test, in order to test participants' pre-knowledge of vocabulary. Then, vocabulary instruction was provided through three methods of visual instruction, the use of context and the use of conventional techniques. At the end of the study, all participants took the same posttest in order to assess their vocabulary gain. The results of independent sample t-test indicated that there is a significant difference between learning vocabulary visually and learning vocabulary contextually. The results of paired sample t-test showed that different teaching strategies have significantly different impacts on learners’ vocabulary gains. Also, the contextual strategy was significantly more effective than visual strategy in improving students’ performance in vocabulary test. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=vocabulary%20instruction" title="vocabulary instruction">vocabulary instruction</a>, <a href="https://publications.waset.org/abstracts/search?q=explicit%20instruction" title=" explicit instruction"> explicit instruction</a>, <a href="https://publications.waset.org/abstracts/search?q=implicit%20instruction" title=" implicit instruction"> implicit instruction</a>, <a href="https://publications.waset.org/abstracts/search?q=strategy" title=" strategy"> strategy</a> </p> <a href="https://publications.waset.org/abstracts/52215/comparison-learning-vocabulary-implicitly-and-explicitly" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/52215.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">335</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">76</span> In-Vitro Stability of Aspergillus terreus Phytases in Relation to Different Physico-Chemical Factors</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Qaiser%20Akram">Qaiser Akram</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahsan%20Naeem"> Ahsan Naeem</a>, <a href="https://publications.waset.org/abstracts/search?q=Hafiz%20Muhammad%20Rizwan"> Hafiz Muhammad Rizwan</a>, <a href="https://publications.waset.org/abstracts/search?q=Waqas%20Ahmad"> Waqas Ahmad</a>, <a href="https://publications.waset.org/abstracts/search?q=Rubeena%20Yasmeen"> Rubeena Yasmeen</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Aspergillus has good secretory potential for phytases. Morphologically and microscopically identified Aspergillus terreus (A. terreus) (n=20) were screened for phytase production and non-toxicity. Phytases produced by non-toxigenic A. terreus under optimum conditions were quantified. Phytases of highest producer A. terreus were evaluated for stability after exposure to temperature (35, 55, 75 and 95ºC) and pH (2, 4, 6 and 8). Effect of metal ions (Fe⁺³, Ba⁺², Ca⁺², Cu⁺², Mg⁺², Mn⁺², K⁺¹ and Na⁺¹) was assessed on phytase activity. Log reduction in phytase activity was calculated. The highest activity units of phytase produced by A. terreus were 271.49 ± 8.14 phytase unit / mL (FTU/ mL). The lowest reduction in phytase activity was 50.20 ± 7.36 (18.5%) and 68.22 ± 10.3 FTU/mL (25.13%) at 35ºC and pH 6, respectively for 15 minutes. The highest reduction 259 ± 0.84 (95.5%) and 211.99 ± 4.39 FTU/mL (78.1%) was recorded at 95ºC for 60 minutes and pH 2.0 for 45 minutes exposure, respectively. All metal ions negatively affected phytase activity. Phytase activity was inhibited minimum (45.32 ± 28.54 FTU/mL, 16.69%) by K⁺¹(1 mM) and maximum (231.48 ± 3.68 FTU/mL, 80.8%) by Cu⁺² (10 mM). It was concluded that A. terreus phytase stability and activity was dependent on physio-chemical factors. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=stability" title="stability">stability</a>, <a href="https://publications.waset.org/abstracts/search?q=phytase" title=" phytase"> phytase</a>, <a href="https://publications.waset.org/abstracts/search?q=aspergillus%20terreus" title=" aspergillus terreus"> aspergillus terreus</a>, <a href="https://publications.waset.org/abstracts/search?q=physio-chemical%20factors%20and%20metal%20ions" title=" physio-chemical factors and metal ions"> physio-chemical factors and metal ions</a> </p> <a href="https://publications.waset.org/abstracts/159065/in-vitro-stability-of-aspergillus-terreus-phytases-in-relation-to-different-physico-chemical-factors" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/159065.pdf" target="_blank" class="btn btn-primary 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