233 research outputs found

    Flood Modeling on Koya Catchment Area Using Hyfran, Web Map Service, and HEC-RAS Software

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    In this research, The boundaries of the Koya catchment area have been delineated, and valley paths in the region were drawn by using the Water Modeling System (WMS) software, Analysis of the morphometric information indicated that the morphometric characteristics of watersheds contribute to the floods. The average surface runoff depth depends on the curve number values that are determined based on the types of soil cover and soil class according to Harmonized World Soil Database HWSD software that indicates the soil class in the study area are Group B silt loam,  The results obtained also show that the potential for surface runoff varies with land use and soil characteristics. Also, the value of the curve number (CN) was determined to be 71. The hydrological modeling was performed by the HEC-HMS program that simulates the process of rainfall to runoff using the SCS curve number model. A flood hydrograph was constructed at the catchment area outlet and the floodplain delineation was verified by the HEC-RAS software. The results indicated that the 100-year return period flood could Reach critical areas such as the urban area, agricultural area, residential areas. the results of this study indicate that there are suitable sites in the catchment areas for constructing small dams and ponds for water harvesting.&nbsp

    Using E-Portfolio to Enhance Students’Motivation Towards Learning English at University College of Applied Sciences, Palestine

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    In the era of globalization and technological revolution, the widely spread usage of e-portfolio inside and outside classrooms has encouraged educators and policymakers to look for new methods of assessment that suit the new digital generation.The purpose of this study is to examine the outcome of using e-portfolio on University College of Applied Sciences (UCAS) students' motivation towards English language learning. The total number of students in English Language social work classes under the humanitarian department at UCAS is 60 (30 males and 30 females). Those are officially enrolling in English Language course (DIPL 1303) at first semester of 2014/2015 academic year. A Sequential Exploratory Design was used to collect qualitative and quantitative data for one semester. The results of this study showed that instrumental and integrative motivation levels of UCAS students improved towards learning English after utilizing e-portfolio. But the integrative motivation was found to be a bit higher than instrumental motivation. This has generated several theoretical, pedagogical and policy implications for instructors, universities and researchers. Therefore, it can be concluded that integrating e-portfolio at the tertiary level would improve the potentialities of researchers and policy makers to create a real change in the learning process

    Using E-Portfolio to Enhance Student’s Attitudes Towards Learning English at University College of Applied Sciences.

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    Attitude is considered to be an essential element of the English language learning process at tertiary level. The present study investigates the outcome of using e-portfolio to enhance students’ attitude towards English language learning at UCAS (University College of Applied Sciences) in Palestine. 60 students (30 males and 30 females) who are enrolled in English Language course (DIPL 1303) at first semester of 2014/2015 academic year were selected as a sample of this study. A Sequential Exploratory Design was used to collect qualitative and quantitative data for one semester. The findings of this study revealed that students’ attitude towards learning English changed positively after utilizing e-portfolio. This has generated several theoretical, pedagogical and policy implications for instructors, universities and researchers. Therefore, it can be concluded that integrating e-portfolio at the tertiary level would enhance students’ attitude towards English language learning and release their potentialities towards the learning process

    Acquired air-filled lung cysts in childhood: pathogenesis of cysts of diverse etiologies; nuances of management

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    Background Air-filled pulmonary parenchymal cysts (pneumatoceles/PCs) – a pathological condition – involving the lung parenchyma may be congenital or acquired. In children, acquired cases are often caused by staphylococcal pneumonias, but other etiologies may also cause PCs and lead to diagnostic confusion.Objectives The aim of this study was to examine the natural history and clinicopathologic features of noncongenital, nonstaphylococcal PCs in children.Patients and methods Four children with nonstaphylococcal PCs were included in this study. A full history, clinical examination, relevant radiological and pathological findings, surgical intervention where relevant, and follow-up were analyzed.Results The cases described represent acquired PCs: one occurred after infarction following cardiac surgery, another was a subpleural pulmonary bleb of inflammatory origin, and the remaining two were post-traumatic pseudocysts. The inflammatory-process bleb and the postinfarction cysts presented with pneumothorax. The postinfarction and post-traumatic PCs responded to observation. The pulmonary bleb was excised.Conclusion Our understanding of the clinicopathologic features and pathogenesis of many types of acquired PCs is incomplete. We propose that PC formation has a basis in destruction of the distal airways of the lung. Damaged tissue may act as a valve, and cause air-trapping, which leads to PC formation. Cysts arising after infarction or after trauma usually resolve on observation. Subpleural blebs may require excision because of nonresolution and recurrence of pneumothorax

    Safety and Complications of Double-Lumen Tunnelled Cuffed Central Venous Dialysis Catheters : Clinical and radiological perspective from a tertiary centre in Oman

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    Objectives: This study aimed to assess the technical success, safety and immediate and delayed complications of double-lumen tunnelled cuffed central venous catheters (TVCs) at the Sultan Qaboos University Hospital (SQUH), Muscat, Oman. Methods: This retrospective study took place between January 2012 and October 2013. The clinical records and radiological data of all patients who underwent ultrasound- and fluoroscopy-guided TVC placement at SQUH during the study period were reviewed. Demographic data and information regarding catheter placement, technical success and peri- and post-procedure complications (such as catheter-related infections or thrombosis) were collected. Results: A total of 204 TVCs were placed in 161 patients. Of these, 68 were female (42.2%) and 93 were male (57.8%). The mean age of the patients was 54.4 ¹ 17.3 years. The most common reason for catheter placement was the initiation of dialysis (63.4%). A total of 203 procedures were technically successful (99.5%). The right internal jugular vein was the most common site of catheter placement (74.9%). Mild haemorrhage which resolved spontaneously occurred in 11 cases (5.4%). No other complications were observed. Subsequent follow-up data was available for 132 catheters (65.0%); of these, thrombosis-related catheter malfunction was observed in 22 cases (16.7%) and catheter-related infection in 29 cases (22.0%). Conclusion: Radiological-guided placement of tunnelled haemodialysis catheters can be performed safely with excellent technical success. The success rate of catheter insertion at SQUH was favourable in comparison with other studies reported in the literature

    Prevalence of Allergic Disorders among Primary School-Aged Children in Madinah, Saudi Arabia: Two-Stage Cross-Sectional Survey

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    There are limited data on the epidemiology of allergic disorders in Saudi Arabia. Such data are needed for, amongst other things, helping to plan service provision at a time when there is considerable investment taking place in national healthcare development. We sought to estimate the prevalence of atopic eczema, allergic rhinitis and asthma in primary school children in Madinah, Saudi Arabia.We conducted a two-stage cross-sectional survey of schoolchildren in Madinah. Children were recruited from 38 randomly selected schools. Questionnaires were sent to the parents of all 6,139 6-8 year old children in these schools. These parental-completed questionnaires incorporated questions from the International Study of Asthma and Allergies in Childhood (ISAAC), which had previously been validated for use in Arab populations. We undertook descriptive analyses, using the Generalized Estimating Equation (GEE) to calculate 95% confidence intervals. The overall response rate was 85.9% (n = 5,188), 84.6% for girls and 86.2% for boys, respectively. Overall, parents reported symptoms suggestive of a history of eczema in 10.3% (95%CI 9.4, 11.4), rhinitis in 24.2% (95%CI 22.3, 26.2) and asthma in 23.6% (95%CI 21.3, 26.0) of children. Overall, 41.7% (95%CI 39.1, 44.4) of children had symptoms suggestive of at least one allergic disorder, with a substantial minority manifesting symptoms indicative of co-morbid allergic disease. Comparison of these symptom-based prevalence estimates with reports of clinician-diagnosed disease suggested that the majority of children with eczema and asthma had been diagnosed, but only a minority (17.4%) of children had been diagnosed with rhinitis. International comparisons indicated that children in Madinah have amongst the highest prevalence of allergic problems in the world.Symptoms indicative of allergic disease are very common in primary school-aged children in Madinah, Saudi Arabia, with figures comparable to the highest risk regions in the world

    The impact of a school-based, nurse-delivered asthma health education programme on quality of life, knowledge and attitudes of Saudi children with asthma

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    Background More than two million people have asthma in Saudi Arabia: 13% aged 6-10 years. Asthma is one of the most common childhood illnesses. Little has been explored about children’s ability to learn more about their own asthma in Saudi Arabia. Aims The study was designed to assess the impact of a school-based, nurse-delivered asthma health education programme on asthmatic children's knowledge and attitude towards asthma, quality of life, anxiety level, and school absenteeism. Methods A quasi-experimental, non-equivalent groups, pre-test post-test design was used. The education programme was developed from existing evidence. The Paediatric Asthma Quality of Life Questionnaire, Spence Anxiety Tool, Asthma Knowledge Questionnaire, and Asthma Attitude Questionnaire were employed for data collection. Intervention (n=130) and control (n=98) groups were drawn from 10 schools in Ha’il region, Saudi Arabia. Descriptive and inferential statistics were used to examine differences within and between groups. Results Knowledge of asthma increased significantly more in the intervention group than in the control group. Attitude toward asthma was not changed by the intervention. Anxiety scores reverted to pre-test level by post-test II. The intervention group had significantly better total quality of life scores than the control group, and school absenteeism reduced significantly after delivery of the programme. Conclusion The asthma education programme impacted positively on students' knowledge, quality of life, and school attendance. However, asthma education did not change attitudes towards the condition, and the impact on anxiety was not persistent. The results emphasise the benefits of provision of health education directly to children. Asthma education should be integrated into the Saudi national child health programme. Key words: Asthma, Children, Education programme, Self-agenc

    Reproductive morbidity among Iranian women; issues often inappropriately addressed in health seeking behaviors

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    <p>Abstract</p> <p>Background</p> <p>Reproductive morbidity has a huge impact on the health and quality of life of women. We aimed to determine the prevalence of reproductive morbidities and the health seeking behavior of a nationally representative sample of Iranian urban women.</p> <p>Methods</p> <p>A sample of 1252 women, aged 18-45 years, was selected using the multi stage, stratified probability sampling procedure. Data were collected through interviews and physical, gynecological and ultrasonographic examinations.</p> <p>Results</p> <p>Reproductive tract infection (RTIs), pelvic organ prolapse (POP) and menstrual dysfunction were the three main groups of morbidities with a prevalence of 37.6%, 41.4% and 30.1%., respectively. Our study demonstrated that 35.1, 34.5 and 9.6 percent of women experienced one, two or these reproductive organ disorders mentioned, respectively, while 20.6 percent of participants had none of these disorders. Findings also showed that the majority of women who suffered from reproductive morbidities (on average two out of three) had not sought appropriate care for these except for infertility.</p> <p>Conclusions</p> <p>Reproductive health morbidities impose a large burden among Iranian women and have negative impact on their reproductive health and wellbeing.</p

    Clinical outcomes of seasonal influenza and pandemic influenza A (H1N1) in pediatric inpatients

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    <p>Abstract</p> <p>Background</p> <p>In April 2009, a novel influenza A H1N1 (nH1N1) virus emerged and spread rapidly worldwide. News of the pandemic led to a heightened awareness of the consequences of influenza and generally resulted in enhanced infection control practices and strengthened vaccination efforts for both healthcare workers and the general population. Seasonal influenza (SI) illness in the pediatric population has been previously shown to result in significant morbidity, mortality, and substantial hospital resource utilization. Although influenza pandemics have the possibility of resulting in considerable illness, we must not ignore the impact that we can experience annually with SI.</p> <p>Methods</p> <p>We compared the outcomes of pediatric patients ≤18 years of age at a large urban hospital with laboratory confirmed influenza and an influenza-like illness (ILI) during the 2009 pandemic and two prior influenza seasons. The primary outcome measure was hospital length of stay (LOS). All variables potentially associated with LOS based on univariable analysis, previous studies, or hypothesized relationships were included in the regression models to ensure adjustment for their effects.</p> <p>Results</p> <p>There were 133 pediatric cases of nH1N1 admitted during 2009 and 133 cases of SI admitted during the prior 2 influenza seasons (2007-8 and 2008-9). Thirty-six percent of children with SI and 18% of children with nH1N1 had no preexisting medical conditions (p = 0.14). Children admitted with SI had 1.73 times longer adjusted LOS than children admitted for nH1N1 (95% CI 1.35 - 2.13). There was a trend towards more children with SI requiring mechanical ventilation compared with nH1N1 (16 vs.7, p = 0.08).</p> <p>Conclusions</p> <p>This study strengthens the growing body of evidence demonstrating that SI results in significant morbidity in the pediatric population. Pandemic H1N1 received considerable attention with strong media messages urging people to undergo vaccination and encouraging improved infection control efforts. We believe that this attention should become an annual effort for SI. Strong unified messages from health care providers and the media encouraging influenza vaccination will likely prove very useful in averting some of the morbidity related to influenza for future epidemics.</p
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