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Search Results: 1 - 10 of 5524 matches for " Abdulla Mohammed Megally "
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Case Report-Huge Lipoma in the Right Groin  [PDF]
Abdulla Mohammed Megally, M. A. Al-Katta, Z. A. Mejalli, Hadi Mohammed Mujlli
Open Access Library Journal (OALib Journal) , 2019, DOI: 10.4236/oalib.1105714
Abstract:
Lipoma is the most common soft tissue tumor, considered the universal tumor in the body. The differential diagnosis of a lipoma in the groin will include groin hernias, safina varex, lymphadenopathy, hydrocele and sarcoma. Due to the similarity of clinical symptoms and signs, the differentiation between inguinal, femoral hernias and groin lipoma is difficult. To avoid the high risk of intraoperative complications, correct diagnosis is an indication. We are report-ing a case with huge lipoma arisen from the right groin mainly from right la-bium major of a 19-year-old single girl grown in a relatively short period to reach dimensions of a football and weighing 7200 grams. Painless, peduncu-lated tumor arose from labium major to the level of the knee, asymptomatic except unsightly huge mass, which treated successfully by surgical excision without complications and proved benign with no malignant changes detected.
Manual and Fast C Code Optimization
Mohammed Fadle Abdulla
Annals. Computer Science Series , 2010,
Abstract: Developing an application with high performance through the code optimization places a greater responsibility on the programmers. While most of the existing compilers attempt to automatically optimize the program code, manual techniques remain the predominant method for performing optimization. Deciding where to try to optimize code is difficult, especially for large complex applications. For manual optimization, the programmers can use his experiences in writing the code, and then he can use a software profiler in order to collect and analyze the performance data from the code. In this work, we have gathered the most experiences which can be applied to improve the style of writing programs in C language as well as we present an implementation of the manual optimization of the codes using the Intel VTune profiler. The paper includes two case studies to illustrate our optimization on the Heap Sort and Factorial functions.
Re : The adult hip joint in Saudi Arabia
Moussa Mohammed,Alumran Abdulla
Annals of Saudi Medicine , 2007,
Abstract:
Manual and Fast C Code Optimization
Mohammed Fadle Abdulla
Computer Science , 2012,
Abstract: Developing an application with high performance through the code optimization places a greater responsibility on the programmers. While most of the existing compilers attempt to automatically optimize the program code, manual techniques remain the predominant method for performing optimization. Deciding where to try to optimize code is difficult, especially for large complex applications. For manual optimization, the programmers can use his experiences in writing the code, and then he can use a software profiler in order to collect and analyze the performance data from the code. In this work, we have gathered the most experiences which can be applied to improve the style of writing programs in C language as well as we present an implementation of the manual optimization of the codes using the Intel VTune profiler. The paper includes two case studies to illustrate our optimization on the Heap Sort and Factorial functions.
Three-Photon Absorption in Zno Film Using Ultra Short Pulse Laser  [PDF]
Raied K. Jamal, Mohammed T. Hussein, Abdulla M. Suhail
Journal of Modern Physics (JMP) , 2012, DOI: 10.4236/jmp.2012.38112
Abstract: The three-photon absorption (3PA) in nanostructure wide-band gap ZnO semiconductor material is observed under high intensity femtosecond Titanium-Sapphire laser of 800 nm wavelength excitation. The ZnO film was prepared by chemical spray pyrolysis technique with substrate temperature of 400℃. The optical properties concerning the absorp-tion, transmission, reflection, Raman and the photoluminescence spectra are studied for the prepared film. The structure of the ZnO film was tested with the X-Ray diffraction and it was found to be a polycrystalline with recognized peaks oriented in (002), and (102). The measured of three photon absorption coefficient was found to be about 0.0166 cm3/Gwatt2, which is about five times higher than the bulk value. The fully computerized z-scan system was used to measure the nonlinear coefficients from the Gaussian fit of the transmitted laser incident.
HEAT TRANSFER CHARACTERISTICS OF A NUCLEAR FUEL ROD COOLED IN A SURROUNDING MEDIUM –A COMPARITIVE STUDY BETWEEN 1-D & 2-D ANALYSIS
FARES ABDULLA,MOHAMMED NAZAR,NAGEEM SHAFI,ABDULLA M.M
International Journal of Engineering Science and Technology , 2012,
Abstract: This paper presents the comparison of the heat transfer characteristics of a two-dimensional model of a nuclear fuel rod cooled in a surrounding medium with those of one- dimensional model. The equations governing the temperature field both for one and two-dimensional models are solved numerically using second order finite difference schemes. Thermal performance characteristics of the two-dimensional model of the fuel rod is obtained for a wide range of aspect ratio Ar, Biot number Bi, and heat generation parameter Q and compared with those of respective one-dimensional model. It is observed that for Ar 7.0, Bi and Q being kept fixed, onedimensionalmodel prediction is found to be quite satisfactory. Furthermore, for fixed values of Ar and Bi, there exists a limiting value of Q below which one-dimensional model prediction is valid. It is also noticed that for fixed values of Ar and Q and Bi 1.5, one-dimensional model prediction is in fairly good agreement with that of two-dimensional one.
The Impact of Obesity on the Left Ventricular Ejection Fraction Using Echocardiography  [PDF]
Bahaaedin A. Elkhader, Alsafi A. Abdulla, Mohammed A. Ali Omer, Maram A. Fagiri, Mustafa Z. Mahmoud
Open Journal of Medical Imaging (OJMI) , 2014, DOI: 10.4236/ojmi.2014.44024
Abstract: Global left ventricle chamber function in obese patients is assessed, most commonly, by means of the ejection fraction. The preferred noninvasive modality for evaluating regional wall motion and overall ventricular performance is usually color-flow Doppler transthoracic echocardiography. The aim of this study was to evaluate the relationship of left ventricular ejection fraction to body mass index (BMI) measure of obesity in obese patients by using echocardiography. A prospective cohort study was conducted in the period of July 2012 to September 2014 in the ultrasound department of the Sudan Heart Center in Khartoum-Sudan, among a group of 250 obese participants of acute myocardial infarction (AMI) (67.2% males and 32.8% females) and their ages range from 22 to 86 years; mean age of 41 ± 1.2 years. Echocardiography studies were performed using MyLab 50 XVision-Esaote echocardiography machine equipped with 2.5 MHz phased array probe. Standard Statistical Package for the Social Sciences (SPSS) was used to analyze the results. The mean BMI was 28.6 ± 5.4 kg/m2. Significant relationship is found between left ventricle ejection fraction and BMI (P < 0.001). BMI is a useful statistical tool to track the body size trends in a multicentric population in Sudan. Left ventricular ejection fraction allows ventricular function to be assessed without the need for further body size adjustment.
Acute renal transplant rejections: A single center experience
Jabur Wael,Mohammed Saaed Hareth,Abdulla Khalid
Saudi Journal of Kidney Diseases and Transplantation , 2008,
Abstract: We undertook this observational study to assess the incidence of acute rejections (AR) in the first six months after transplantation at Al-Karama Hospital, Iraq. Sixty eight patients (49 males and 19 females) underwent renal transplantation in 2006 and were followed up weekly. Forty six received kidneys from related donors and 22 from unrelated donors. During the first six months after transplantation AR occurred in 16 patients (23%); 11 (23%) related and 5 (23%) unrelated donor transplantation. We conclude that the incidence of acute rejection was similar in related and unrelated donor transplantation and the general incidence was comparable to that reported from most centers.
Early Non-Immunological Post Transplant complications: A Single Center Experience
Jabur Wael,Mohammed Saaed Hareth,Abdulla Khalid
Saudi Journal of Kidney Diseases and Transplantation , 2008,
Abstract: To assess non-immunological complications affecting renal transplant patients in the first six months after transplantation in Al-Karama hospital, Baghdad, Iraq, we studied 68 patients (49 males, 19 females) attending the clinic during the year 2006. Forty six (67%) patients received kidneys from related and 22 (33%) from unrelated donors. The patients revealed the following complications: post transplant hypertension in 28 (41%) patient, infection (mostly bacterial) in 27 (37%), new onset diabetes in 11 (16%), calcineurin inhibitor toxicity in 10 (14%), anemia in 8 (12%), surgical complications in 7 (10%), slow graft recovery in 4 (6%), cardiovascular complications in 3 (4%), and Kaposi sarcoma in 2 (2.9%).Transient hyperglycemia, hypertension, infection and diabetes mel-litus were the commonest early complications of renal transplantation. The incidence of complications is comparable to the average reported in the literature, especially in this region of the world.
The Relation between Fructose-Induced Metabolic Syndrome and Altered Renal Haemodynamic and Excretory Function in the Rat
Mohammed H. Abdulla,Munavvar A. Sattar,Edward J. Johns
International Journal of Nephrology , 2011, DOI: 10.4061/2011/934659
Abstract: This paper explores the possible relationships between dietary fructose and altered neurohumoral regulation of renal haemodynamic and excretory function in this model of metabolic syndrome. Fructose consumption induces hyperinsulinemia, hypertriglyceridaemia, insulin resistance, and hypertension. The pathogenesis of fructose-induced hypertension is dubious and involves numerous pathways acting both singly and together. In addition, hyperinsulinemia and hypertension contribute significantly to progressive renal disease in fructose-fed rats. Moreover, increased activity of the renin-angiotensin and sympathetic nervous systems leading to downregulation of receptors may be responsible for the blunted vascular sensitivity to angiotensin II and catecholamines, respectively. Various approaches have been suggested to prevent the development of fructose-induced hypertension and/or metabolic alteration. In this paper, we address the role played by the renin-angiotensin and sympathetic nervous systems in the haemodynamic alterations that occur due to prolonged consumption of fructose. 1. Fructose-Feeding as a Model of Metabolic Syndrome Metabolic syndrome or “syndrome X” is a cluster of pathologies comprising insulin resistance, hyperinsulinemia, hypertriglyceridemia, accelerated atherosclerosis, and hypertension [1, 2] and is associated with morbidities such as increased risk of developing cardiovascular disease, Type 2 diabetes mellitus, and renal disease [3–7]. Previous studies have shown that the fructose-fed rat model develops an insulin-resistance syndrome with a very similar metabolic profile to the human condition, including hyperinsulinemia, insulin resistance, hypertriglyceridemia, and decreased HDL cholesterol [8, 9]. Consequently, the administration of a fructose-rich diet has been used as a model for investigating the development of the metabolic syndrome [10]. Variable amounts of fructose and modes of intake have been utilized which have resulted in the expression of a range of features of the metabolic syndrome. Sánchez-Lozada et al. [11] administrated fructose either in the drinking water or as a dietary component and induced hypertension, hyperuricemia, and hypertriglyceridemia [11]. However, fructose in the feed was found to result in a more severe metabolic syndrome and kidney damage compared to fructose given in the drinking water which suggested a relationship between the amount of fructose consumed and the development of deleterious effects [11]. This was supported by a previous study in the rat which proposed that fructose-induced
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