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- 저자 : Hussein Nabil (검색결과 5 건)
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Congenital Heart Surgery Skill Training Using Simulation Models: Not an Option but a Necessity
Yoo Shi-Joon,Hussein Nabil,Barron David J. 대한의학회 2022 Journal of Korean medical science Vol.37 No.38
Congenital heart surgery (CHS) is technically demanding, and its training is extremely complex and challenging. Training of the surgeon’s technical skills has relied on a preceptorship format in which the trainees are gradually exposed to patients in the operating room under the close tutelage of senior staff surgeons. Training in the operating room is an inefficient process and the concept of a learning curve is no longer acceptable in terms of patient outcomes. The benefits of surgical simulation in training of congenital heart surgeons are well known and appreciated. However, adequate surgical simulation models and equipment for training have been scarce until the recent development of three-dimensionally (3D) printed models. Using comprehensive 3D printing and silicone-molding techniques, realistic simulation training models for most congenital heart surgical procedures have been produced. Newly developed silicone-molded models allow efficient CHS training in a stressfree environment with instantaneous feedback from the proctors and avoids risk to patients. The time has arrived when all congenital heart surgeons should consider surgical simulation training before progressing to real-life operating in a similar fashion to the aviation industry where all pilots are required to complete simulation training before flying a real aircraft. It is argued here that simulation training is not an option anymore but should be a mandatory component of CHS training.
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Mahmoud Ibrahim,Sulaiman Nabil,Hussein Amal,Mohammed Heba,AL Nakhi Wafa Khamis,Hussain Hamid,Ibrahim Gamal 한국역학회 2021 Epidemiology and Health Vol.43 No.-
OBJECTIVES: The aim of this study was to develop a risk score model for predicting hypertension specific to the population of Dubai in the United Arab Emirates (UAE) to facilitate prevention and early intervention. METHODS: A retrospective analysis of data from the Dubai Household Health Survey 2019 was conducted. Demographic and physical parameters, as well as blood glucose levels, were included in the data. The risk factors for hypertension were identified using bivariate analysis. A risk score model was developed using the enter method, where all significant predictors of hypertension in bivariate analyses were entered in a single step with the primary outcome of hypertension status (yes/no). The model was validated internally by splitting the data into Emirati and non-Emirati populations. RESULTS: A total of 2,533 subjects were studied. The significant risk factors for hypertension identified were male sex, older age (≥ 40 years), education level, body mass index, diabetes mellitus, and dyslipidaemia. The model showed a high discrimination ability between individuals with and without hypertension, with an area under the curve of 0.77 (95% confidence interval [CI], 0.75 to 0.79), excellent sensitivity (81.0%; 95% CI, 71.9 to 88.2) and moderate specificity (56.0%; 95% CI, 45.7 to 65.9). CONCLUSIONS: The model developed by this study is simple, convenient, and based on readily available demographic and medical characteristics. This risk score model could support initial hypertension screening and provide an effective tool for targeted lifestyle counselling and prevention programs.
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Miran K. Rakha,Zohour I. Nabil,Aida A. Hussein 한국식품영양과학회 2008 Journal of medicinal food Vol.11 No.1
Induction of hyperadrenergic activity was experimentally achieved in urethane-anesthetized rats using epi-nephrine (adrenaline). Acute administration of epinephrine (100 .g/kg) for 2 hours induced several cardiac disorders and va-somotor dysfunction. Pretreatment with natural wild honey (5 g/kg) for 1 hour prior to the injection with epinephrine (100.g/kg) protected the anesthetized normal rats from the incidence of epinephrine-induced cardiac disorders and vasomotor dys-function. Moreover, posttreatment with natural wild honey (5 g/kg) following the injection with epinephrine (100 .g/kg) for1 hour showed several ameliorative outcomes to the electrocardiographic parameters and vasomotor dysfunction of anes-thetized stressed rats. Furthermore, natural wild honey preserved the positive inotropic effect of epinephrine in both cases.Also, the total antioxidant capacity (AOC) of natural wild honey was found to be very pronounced. Levels of both reducedglutathione and ascorbic acid (vitamin C) were considered relatively high in natural wild honey. Activity of superoxide dis-mutase (SOD) was also high, whereas catalase activity was relatively low, especially when compared to the value of SODactivity. It would appear from the results of the present study that natural wild honey may exert its cardioprotective and ther-apeutic effects against epinephrine-induced cardiac disorders and vasomotor dysfunction directly, via its very pronounced to-tal AOC and its great wealth of both enzymatic and nonenzymatic antioxidants involved in cardiovascular defense mecha-nisms, besides its substantial quantities of mineral elements such as magnesium, sodium, and chlorine, and/or indirectly, viathe enhancement of the endothelium-derived relaxing factor nitric oxide release through the influence of ascorbic acid (vita-min C).
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Determinants of Foreign Direct Investment in GCC Countries: An Empirical Analysis
Ebrahim Mohammed AL-MATARI,Mahfoudh Hussein MGAMMAL,Nabil Ahmed M. SENAN,Adeeb Abdulwahab ALHEBRI 한국유통과학회 2021 The Journal of Asian Finance, Economics and Busine Vol.8 No.4
The aim of this paper is to identify the key determinants in the Gulf Cooperation Council (GCC) countries for Foreign Direct Investment (FDI) inflows by using a balanced data panel for the period from 1995 to 2018. This study covers GCC countries in their entirety. The study uses ten explanatory variables, namely, trade ratio, gross domestic product, external balance, fuel exports, gross savings, international tourism, military expenditure, net foreign assets, services value added, and total natural resources. The authors have tried to find the best fit model from the differences methods considered such as OLS, GLS regression with the help of Hausman test, and country by country regressions as additional analysis. The study revealed a significantly positive association between inflation, trade ratio, gross domestic product, gross savings, and net foreign assets with FDI. On the contrary, international tourism was revealed to have a negative association with FDI. The sample of all GCC countries chosen for this study has not been considered widely by any earlier study. Moreover, this study covered many determinants of FDI that add to the previous literature. It is a significant contribution to the current research body and stresses the originality of this paper.
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