1,236 research outputs found

    Revamping an Intensive English Language Program: Challenges and Innovations

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    This article describes an attempt to reform a curriculum of an English intensive language program in the Sultanate of Oman. The reform consisted of several stages, starting from the identification of needs until choosing teaching materials. Based on the data obtained from the various sources of the study (i.e. survey, observations, interviews, and workshops), a number of changes were introduced to the curriculum. This project revealed important issues to be addressed in order to make the program design and evaluation more effective in upgrading students' English language proficiency and academic competence so that they are better prepared for college study

    Predictors of impending acute chest syndrome in patients with sickle cell anaemia.

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    Acute chest syndrome (ACS) is a major complication of sickle cell anaemia (SCA) and a leading cause for hospital admissions and death. We aimed to study the spectrum of clinical and laboratory features of ACS and to assess the predisposing factors and predictors of severity. A retrospective case-control cohort was studied by retrieving patient information from electronic medical records after ethical approval. One hundred adolescents and adults with SCA and hospital admissions for ACS were identified through the discharge summaries, along with 20 additional patients presenting with VOC, but without ACS (controls). Among the patients with ACS, fever (\u3e38.5 °C), reduced oxygen saturation (\u3c95) and asplenia significantly differed when compared to those of controls (p \u3c 0.05, chi-squared test). The degree of severity was reflected in the use of non-invasive ventilation (NIV), simple and exchange transfusions, and the presence of bilateral pleural effusions and multi-lobar atelectasis/consolidation, which were significantly higher in the cases with ACS than in the controls. Lower haemoglobin (Hb) and high WBC counts were also significantly different between the two groups (p \u3c 0.05, Student’s t test). Using logistic regression, our study further demonstrated that asplenia, fever, and reduced O2 saturation, along with low Hb and leukocytosis, were important predictors for the development of ACS

    Modeling the impact of the oil sector on the economy of sultanate of Oman

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    This study constructs and analyses a simple macroeconomic model that specifically tailored to model the impact of oil sector on the economy of Sultanate of Oman. The constructed model of the study measures the impact of oil sector on the Oman economy for the last three decades and also provides some forecasting for the major macroeconomics indicators related to the Oman economy. Model simulations indicate that the oil sector has large and positive impact on Oman gross domestic product and its influence spills over to all other non-oil sectors of Oman economy. The study found that largest influence of oil was on the gas sector and the least economic sector influenced by oil was agricultural sector. The findings of the study suggest that Oman economy is far from being diversified and that the proposed model helps the policy makers in Oman to identify and forecast the impact of oil on other components of the Oman economy

    Medical Tourism Abroad : A new challenge to Oman’s health system - Al Dakhilya region experience

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    Objectives: This study aimed to understand why people seek medical advice abroad given the trouble and expense this entails. The types of medical problems for which treatment abroad was sought, preferred destinations and satisfaction with the treatment were explored. A secondary aim was to give feedback to stakeholders in the health care system on how to handle this issue and meet the needs of the community. Methods: 45 patients who had recently travelled abroad for treatment were asked to complete a questionnaire or were interviewed by telephone. Results: 40 questionnaires were received. 68% of the respondents were male. Orthopaedic diseases were the most common conditions leading patients to seek treatment abroad. Thailand was the most popular destination followed by India (50% and 30% respectively). 85% of respondents went abroad for treatment only, 10% for treatment and tourism and 2.5% were healthy, but travelled abroad for a checkup. Interestingly, 15% of the participants went abroad without first seeking medical care locally. Out of those initially treated in Oman, 38.2% had no specific diagnosis and 38.2% had received treatment, but it was not effective. 73% of respondents obtained information on treatment abroad from a friend. The Internet and medical tourism offices were the least used sources of information. 15% of the patients experienced complications after their treatment abroad. Conclusion: Various facts about medical treatment abroad need to be disseminated to the public. This will necessitate greater effort in public health promotion and education. 

    Simplification of high graphene/n-Si Schottky junction solar efficiency

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    Because of the outstanding properties of graphene such as optical transmission and mobility of charges [1], it incorporates to Schottky solar cells. These properties of graphene also reduces the optical and electrical losses which are in solar cells made of p-n structures. To increase the performance of electronic devices, researchers developed 3 designs using graphene with silicon solar cell technology. Schottky junction solar cells made of graphene and n-silicon have attained efficiency values comparable to p-n junction silicon solar cells. Nevertheless, issues remain such as how to simplify the creating process to improve the fill factor and stability of devices. This doctoral study will focus on various phases of the progression of graphene/silicon solar cells toward greater efficiency and stability. The study will discuss the simplicity of top-window-structured graphene/n-Si Schottky junction photovoltaic devices. It will also deal with developing the fill factor and stability of devices. Until now, top window devices have required complex preparation processes for SiO2 including etching a part of it to create the top window design. To accomplish the process, a simple method of sputtering to form coated SiO2 layers has been developed and will be described in this study. The thickness of SiO2 is thoroughly investigated to constitute an effective top window design. This research is also conducted to enhance the fill factor of samples after introducing multi-graphene layers which form the Schottky junction. This was achieved after decreasing the amount of PMMA residue by developed techniques such as annealing, DUV and chemical treatments. Evaporation of chemical dopants which was another problem that causes low stability of doped devices within a week. It was found in this work that a layer of PMMA coated onto prepared devices significantly improves the stability of doped sample

    Keystone Design Sliding Skin Flap for the Management of Small Full Thickness Burns

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    Deep dermal burns and full thickness burns are generally managed by excision and split thickness skin grafting. The skin graft may lead to unacceptable colour changes and be aesthetically unacceptable. Also, there may be a contour defect and, furthermore, it is followed by varying degrees of contracture. The keystone design sliding flap, first described in 2003, avoids the need for grafting and is not associated with any skin graft problems. We report two cases of the use of this flap as the primary surgery in reconstruction of small full thickness burn defects.
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