100 research outputs found

    Arab English Language Teaching Candidates Climbing the IELTS Mountain: A Qualitatively Driven Hermeneutic Phenomenology Study

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    As a high-stakes international language proficiency benchmark, the International English Language Testing System (IELTS) requires different and special Language Learning Strategies (LLS), which pose numerous challenges to its takers. Some Sultan Qaboos University (SQU) majoring in English Language Teaching (ELT), have therefore, failed to achieve an overall score of Band 6 on the IELTS as a language proficiency requirement and a condition mandated by the Ministry of Education for selecting English language teachers among. This qualitatively driven hermeneutic phenomenology study, hence, discusses this issue from an ideological perspective. The study triangulates data from semi-structured interviews made with six fourth-year ELT Student Teachers (STs) at SQU and the pertinent literature. The critical discussion revealed various ideologies about the powerful impact of the IELTS on the STs’ English language development. The findings have important implications for the practices of the teachers in the Omani ELT school system and elsewhere

    PATH ANALYTIC INVESTIGATION OF THE INTENTION TO ADOPT E-GOVERNMENT SERVICES THROUGH MOBILE APPLICATIONS IN QATAR (TAM REVISITED)

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    The aim of this research is to examine the factors that affect user's intention to use e-government services through mobile applications in Qatar. Based on valid responses from 1,340 adults out of a representative sample size of 7200 (response rate=18.6%) in Qatar aged 18 to 77 years old, this study uses factor analysis and structural equation model to identify the variables that influence users' intention to adopt mobile applications in Qatar. Findings of this study indicate that factors Path Analytic Investigation of the Intention to Adopt E-Government Services through Mobile Applications in Qatar (TAM Revisited) http://www.iaeme.com/IJARET/index.asp 128 [email protected] affecting the intention to adopt e-government services through mobile applications are: awareness, perceived trust, perceived ease of use and perceived usefulness of mobile applications. The present study supports the hypothesis through the findings that perceived usefulness and perceived ease of use leads to mobile application of e-government adoption. The present study adds a relevant and a novel contribution to the field of technology acceptance by encompassing the TAM theory to smartphone applications. The paper concludes with recommendations for institutional policy and future research

    Troubled Waters: Threats and Extinction Risk of the Sharks, Rays and Chimaeras of the Arabian Sea and Adjacent Waters

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    The extinction risk of sharks, rays and chimaeras is higher than that for most other vertebrates due to low intrinsic population growth rates of many species and the fishing intensity they face. The Arabian Sea and adjacent waters border some of the most important chondrichthyan fishing and trading nations globally, yet there has been no previous attempt to assess the conservation status of species occurring here. Using IUCN Red List of Threatened Species Categories and Criteria and their guidelines for application at the regional level, we present the first assessment of extinction risk for 153 species of sharks, rays and chimaeras. Results indicate that this region, home to 15% of described chondrichthyans including 30 endemic species, has some of the most threatened chondrichthyan populations in the world. Seventy-eight species (50.9%) were assessed as threatened (Critically Endangered, Endangered or Vulnerable), and 27 species (17.6%) as Near Threatened. Twenty-nine species (19%) were Data Deficient with insufficient information to assess their status. Chondrichthyan populations have significantly declined due to largely uncontrolled and unregulated fisheries combined with habitat degradation. Further, there is limited political will and national and regional capacities to assess, manage, conserve or rebuild stocks. Outside the few deepsea locations that are lightly exploited, the prognosis for the recovery of most species is poor in the near-absence of management. Concerted national and regional management measures are urgently needed to ensure extinctions are avoided, the sustainability of more productive species is secured, and to avoid the continued thinning of the regional food security portfolio

    المسح السنوي الشامل : مسح عن الحياة في دولة قطر 2014

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    This Executive Summary presents the highlights of the 2014 Omnibus survey, the fourth in a series of Omnibus surveys since 2010. The surveys were carried out by the Social and Economic Survey Research Institute (SESRI) of Qatar University. Each Omnibus survey interviews a large and representative sample of Qatari citizens, resident expatriates and laborers. In these surveys, we asked a number of questions covering several topics of importance to Qatari society, including their attitudes and behaviors related to media; political values and attitudes; gender; charities and charitable donations; traffic; and laborers. The survey was designed and carried out in accordance with the highest scientific and ethical standards. Respondents were assured that their answers would be confidential and presented in an aggregate format. This project was fully funded by the Social and Economic Survey Research Institute (SESRI) at Qatar University. The findings made herein are solely the responsibility of the authors.يقدم هذا التقرير الموجز أبرز ما في المسح الشامل لعام 2014 ،الرابع في سلسلة المسوح الشاملة منذ عام 2010 .تم تنفيذ البحوث من قبل معهد البحوث الاجتماعية والاقتصادية المسحية((SESRI بجامعة قطر. في كل مسح شامل تم استطلاع آراء عينة كبيرة تمثل المواطنين القطريين، والمقيمين والعمال. في هذه المسوح تم طرح عدد من الأسئلة تغطي العديد من المواضيع التي تهم المجتمع القطري، بما في ذلك المواقف والسلوكيات المتعلقة بوسائل الإعلام؛ والقيم والمواقف السياسية؛ دور الرجل والمرأة؛ المؤسسات والتبرعات الخيرية؛ وحركة المرور؛ والعمال الوافدين. صمم ونفذ هذا المسح وفقا لأعلى المعايير العلمية والأخلاقية. وتم التأكيد على المشاركين بأن إجابتهم سرية ومقدمة في شكل إجمالي. وقد تم تمويل هذا المشروع بالكامل من قِبل معهد البحوث الاجتماعية والاقتصادية المسحية بجامعة قطر. وإن الاستنتاجات الموجودة في هذا التقرير هي مسؤولية المؤلفين وحدهم

    Use Cases in Dataflow-Based Privacy and Trust Modeling and Analysis in Industry 4.0 Systems

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    Fostering efficiency of distributed supply chains in the Industry 4.0 often bases on IoT-data analysis and by means of lean- and shop oor-management. However, trust by preserving privacy is a precondition: Competing factories will not share data, if, e.g., the analysis of the data will reveal business relevant information to competitors. Our approach is enforcing privacy policies in Industry 4.0 supply chains. These are highly dynamic and therefore not manageable by \u27traditional\u27 rights-management approaches as we will stretch in a literature analysis. To enforce privacy, we analyze two industrial settings and derive general requirements: (1) Lean- and shop oor-management and (2) factory access control, both common in Industry 4.0 supply chains. We further propose a reference architecture for Industry 4.0 supply chains. We introduce the combination of Palladio Component Model (PCM) [23] and Ensembles [4] in order to analyze and enforce privacy policies in highly dynamic environments. Our novel approach paves way for data sharing and global data analyzes in highly dynamic Industry 4.0 supply chains. It is an important step for efficiency of these supply chains and therefore one important cornerstone for the success of Industry 4.0

    Acellular Bone Marrow Extracts Significantly Enhance Engraftment Levels of Human Hematopoietic Stem Cells in Mouse Xeno-Transplantation Models

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    Hematopoietic stem cells (HSC) derived from cord blood (CB), bone marrow (BM), or mobilized peripheral blood (PBSC) can differentiate into multiple lineages such as lymphoid, myeloid, erythroid cells and platelets. The local microenvironment is critical to the differentiation of HSCs and to the preservation of their phenotype in vivo. This microenvironment comprises a physical support supplied by the organ matrix as well as tissue specific cytokines, chemokines and growth factors. We investigated the effects of acellular bovine bone marrow extracts (BME) on HSC in vitro and in vivo. We observed a significant increase in the number of myeloid and erythroid colonies in CB mononuclear cells (MNC) or CB CD34+ cells cultured in methylcellulose media supplemented with BME. Similarly, in xeno-transplantation experiments, pretreatment with BME during ex-vivo culture of HSCs induced a significant increase in HSC engraftment in vivo. Indeed, we observed both an increase in the number of differentiated myeloid, lymphoid and erythroid cells and an acceleration of engraftment. These results were obtained using CB MNCs, BM MNCs or CD34+ cells, transplanted in immuno-compromised mice (NOD/SCID or NSG). These findings establish the basis for exploring the use of BME in the expansion of CB HSC prior to HSC Transplantation. This study stresses the importance of the mechanical structure and soluble mediators present in the surrounding niche for the proper activity and differentiation of stem cells
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