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Search Results: 1 - 10 of 21152 matches for " Ismail Al Rashdi "
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How Much the Quality of Healthcare Costs? A Challenging Question!
Ismail Al Rashdi
Oman Medical Journal , 2011,
Abstract:
Late Onset Central Hypoventilation Syndrome due to a Heterozygous Polyalanine Repeat Expansion Mutation in the PHOX2B Gene
Ismail Al Rashdi,Mohammed Al Ghafri,Said Al Hanshi,Nabil Al Macki
Oman Medical Journal , 2011,
Abstract: This report describes a 6 year old girl with late onset central hypoventilation syndrome due to a heterozygous polyalanine repeat expansion mutation in the PHOX2B gene. This report aims to increase the awareness of this condition among physicians to allow earlier clinical and genetic diagnosis and management of cases of unexplained hypoventilation.
Investigate the Corrosion Inhibition of Mild Steel in Sulfuric Acid Solution by Thiosemicarbazide  [PDF]
Fatma Mohamed Mahgoub, S. M. Al-Rashdi
Open Journal of Physical Chemistry (OJPC) , 2016, DOI: 10.4236/ojpc.2016.63006
Abstract: Corrosion inhibition of mild steel in 0.5 mol/L H2SO4 was investigated in the absence and presence of different concentrations of thiosemicarbazide. The inhibition efficiency of thiosemicarbazide was studied by electrochemical impedance methods, potentiodynamic polarization and scanning electron microscopy at different inhibitor concentrations. Inhibition efficiency, corrosion rate and surface coverage were evaluated at different concentrations of thiosemicarbazide. Electrochemical impedance plots indicated that the presence of the inhibitors increased the charge transfer resistance of the corrosion process, increasing the inhibition efficiency. Polarization curves showed that this compound acted as mixed type inhibitor. The results of the investigation showed that this compound had good inhibiting properties for mild steel corrosion in 0.5 M sulfuric acid. The adsorption isotherm studies showed that Thiosemicarbazide adsorbed chemisorbed and formed a stable surface complex on the mild steel surface. And Langmuir obeyed the adsorption isotherm. Scanning electron microscopy analysis shows that, the surface morphology of the polished mild steel in the presence of thiosemicarbazide as inhibitor is smoother surface as compared with polished mild steel specimen in the absence of inhibitor.
Potentiometric Determination of Stability Constants of Sulphathiazole and Glycine-Metal Complexes  [PDF]
Awad A. Al-Rashdi, A. H. Naggar, O. A. Farghaly, H. A. Mauof, A. A. Ekshiba
American Journal of Analytical Chemistry (AJAC) , 2018, DOI: 10.4236/ajac.2018.93009
Abstract: Binary and ternary complexes of (Fe(III), Pb(II), Co(II), Al(III), La(III), Sr(II), Cr(III), Ti(II) and Zr(II)) with sulphathiazole (as primary ligand) and amino acid glycine (as secondary ligand) have been studied potentiometrically at 25°C ± 0.1°C and I = 0.1 M NaClO4 in 25% (v/v) pure ethanol-water medium. Although there are many methods available to study the stability of metal-ligand complexes, pH-metry is most frequently used. In extension of our study on solution equilibria, we used Calvin-Bjerrum method for the calculation of stability constants. Stoichiometries and stability constants of binary systems containing the above metal ions in a 1:1 and 1:2 and/or 1:3 ratios were also determined to compare the effect of the secondary ligand on (1:1) Metal:Sulphathiazole system. The protonation constants of the complexes were evaluated for the system M:Sulphathiazole:Glycine = 1:1:1. The order of stability of the binary and ternary complexes was examined. It was found that glycine adds preferably [M-Sulfathiazole] rather than to the aqueous complexes of metal ions. In all cases 1:1:1 complex was formed.
The Patterns of Blood Groups and Its Association with Blood Donation in Saudi Arabia  [PDF]
Fahad A. Alateeq, Thamer Z. Aldugieman, Yousef Duhaim A. Al-Rashdi, Abdul Rahman Ali A. Alsogair, Saleh Hadi Alharbi, Ibrahim Bin Ahmed, Hussain Gadelkarim Ahmed
Open Journal of Preventive Medicine (OJPM) , 2018, DOI: 10.4236/ojpm.2018.89025
Abstract: Background: Blood groups system has key importance for transfusion safety and clinical practice. Therefore, the objective of the present study was to evaluate the distribution of ABO blood groups and its association with blood donation in Saudi Arabia. Methodology: In this study, we collected information regarding blood donation from 715 Saudi volunteers living in the city of Hail, Northern Saudi Arabia. Data about blood donation were obtained from 715 Saudi volunteers living in the city of Hail. Results: The majority of the study population was found with group B+ representing 174 participants, followed by A+, O+, AB+, B-ve, A-ve, AB-ve and O-ve, representing 165, 153, 47, 29, 20, 9, and 7 participants, in this order. Conclusion: The major blood group among Saudi population is group B+ followed by group A+ and O+. Individuals with rare blood groups were less likely to participate in blood donation programs, which necessitate the need for educational programs using motivating factors.
Technology Acceptance: Course and Teaching Surveys Case Study at Sultan Qaboos University
Ali H. Al-Badi,Abdullah S. Al-Rashdi,Taher A. Ba-Omar
IBIMA Business Review , 2011,
Abstract: Course and teaching surveys (CTS) are an integral part of academic life in institutions of higher education. CTS are conducted with the aim of informing the University's commitment to continuous improvement in the delivery of high quality learning experiences for students. They are used also to gauge the students’ satisfaction with the course materials and the instructor(s) and to provide feedback to the instructor(s). Paper based surveys, for historical reasons, are frequently used for this task. With the rolling out of low cost and accessible web based systems, it is now possible to deploy computer-based instead of paper-based surveys. Paper based surveys present a problem due to the extensive amount of paper handling required, and offer greater potential for abuse by certain individuals. Electronic surveys facilitate more efficient development, distribution and reporting processes, but have some issues with motivating student responses. The objective of this research is of two folds; first, to explore the usefulness and effectiveness of using the web-based surveys in contrast to the paper-based ones by obtaining the opinions of the stakeholders (students, faculty members and staff); and secondly to investigate the causes behind the low number of students attempting the web-based surveys in comparison to the paper-based.Interviews with stakeholders) give different perspectives on this matter. Experience with a paper based survey, and the implementation of an electronic replacement at Sultan Qaboos University (SQU), allows the two approaches to be compared. The paper also investigates the acceptability and willingness of the students to use the newly created web-based survey. Many researchers have written about the Technology Acceptance Model (TAM), and some have provided extensions to the initially proposed model. In this paper we present a case study confirming the Perceived Usefulness of Technology (PUT) component of TAM, and how this factor influences a customer’s willingness to use a technology. The study showed clearly that the web-based CTS have much more advantages over the paper-based ones. Furthermore, if a user does not believe a technology is useful he/she will not use it. Many students claimed that they believe that the CTS have no benefits if there are not actions to be taken by the administration. The paper concludes by providing some recommendations to encourage people to use the technology under discussion, an on-line survey service.
The prevalence of toxoplasmosis among female patients in Al-Hawija and Al-Baiji Districts in Iraq  [PDF]
Mohemid Al-Jebouri, Mohanad Al-Janabi, Hassan Ismail
Open Journal of Epidemiology (OJEpi) , 2013, DOI: 10.4236/ojepi.2013.32013
Abstract:

Objectives: Toxoplasma gondii is a ruthless intracellular parasite belonging to Coccidae. Toxoplasmosis is a disease affecting 500 million people worldwide. The seroprevalence varies from 5% to 90% depending on geographical location, age, habit of eating, raw meat or unwashed fruit and vegetables, and general level of hygiene. The objective of the current study was to assess the prevalence of this parasitic disease which lately seems to be elevated generally in Iraq and particularly in the middle and northern Iraq. A prospective study was carried out on females which attended public hospitals complaining of abortion and/ or infertility during 2009. Methods: We collected blood samples from the female patients to detect the presence of specific antibodies of Toxoplasma gondii utilizing direct agglutination test which was compared with ELISA techniques for evaluations of their testing sensitivity. The history of all patients was taken particularly abortion and marriage periods with and/ or without children with the family. Results: Direct latex agglutination test and ELISA methodology gave almost the same results when both were utilized for the detection of the toxoplasmosis in the sera of the women examined. A high frequency of toxoplasmosis incidence was seen among women with one abortion group which happen during their marital life. Conclusions: It was concluded that the high prevalence of toxoplasmosis among the investigated high risk women at Al-Hawija and at Al-Baiji districts is due to many risk factors including age, number of deliveries, contact with host animals. This disease was elevated after Iraq occupation with a frequency of infection more than 40% compared to eighties of Iraqi life which was the frequency of the infected women with toxoplasmosis which did not exceed 2% of the women tested at that time by our laboratories.

Efficacy of Boesenbergia rotunda Treatment against Thioacetamide-Induced Liver Cirrhosis in a Rat Model
Suzy M. Salama,Mehmet Bilgen,Ahmed S. Al Rashdi,Mahmood A. Abdulla
Evidence-Based Complementary and Alternative Medicine , 2012, DOI: 10.1155/2012/137083
Abstract: Background. Experimental research in hepatology has focused on developing traditional medicines into potential pharmacological solutions aimed at protecting liver from cirrhosis. Along the same line, this study investigated the effects of ethanol-based extract from a traditional medicine plant Boesenbergia rotunda (BR) on liver cirrhosis. Methodology/Results. The BR extract was tested for toxicity on 3 groups of rats subjected to vehicle (10% Tween 20, 5 mL/kg) and 2g/kg and 5g/kg doses of the extract, respectively. Next, experiments were conducted on a rat model of cirrhosis induced by thioacetamide injection. The rats were divided into five groups and, respectively, administered orally with 10% Tween-20 (5 mL/kg) (normal control group), 10% Tween-20 (5 mL/kg) (cirrhosis control group), 50 mg/kg of silymarin (reference control group), and 250 mg/kg and 500 mg/kg of BR extract (experimental groups) daily for 8 weeks. The rats in normal group were intraperitoneally injected with sterile distilled water (1 mL/kg) 3 times/week, and those in the remaining groups were injected intraperitoneally with thioacetamide (200 mg/kg) thrice weekly. At the end of the 8 weeks, the animals were sacrificed and samples were collected for comprehensive histopathological, coagulation profile and biochemical evaluations. Also, the antioxidant activity of the BR extract was determined and compared with that of silymarin. Data from the acute toxicity tests showed that the extract was safe to use. Histological analysis of the livers of the rats in cirrhosis control group revealed uniform coarse granules on their surfaces, hepatocytic necrosis, and lymphocytes infiltration. But, the surfaces morphologically looked much smoother and the cell damage was much lesser in those livers from the normal control, silymarin and BR-treated groups. In the high-dose BR treatment group, the livers of the rats exhibited nearly normal looking lobular architecture, minimal inflammation, and minimal hepatocyte damage, the levels of the serum biomarkers and liver enzymes read nearly normal, and these results were all comparable to those observed or quantified from the normal and silymarin-treated groups. The BR extract had the antioxidant activity about half of what was recorded for silymarin. Conclusion. The progression of the liver cirrhosis can be intervened using the ethanol-based BR extract, and the liver’s status quo of property, structure, and function can be preserved. This capability of the extract warrants further studies exploring the significance of its pharmacologic potential in successfully treating the liver cirrhosis in humans.
Effect of two methods of grilling on the oxidative rancidity and cholesterol oxidation in beef and chicken shawerma
Al-Ismail, Khalid
Grasas y Aceites , 2002,
Abstract: The effect of direct blue and charcoal radiation heat grilling on the oxidative rancidity of fat and cholesterol oxidation in beef and chicken shawerma was studied during the first 3 hours of grilling process. The oxidative rancidity of the fat was measured by thiobarbituric acid value (TBA), while that of cholesterol by evaluating the concentration of 7-ketocholesterol. No significant effect (pa ¤ 0.05) of the source of the grilling radiation heat was found on TBA values or 7-ketocholesterol content. The degree of unsaturation of the fat had significant effect (pa ¤0.05) on TBA and 7-ketocholesterol values. TBA values and 7-ketocholesterol for both samples grilled either by direct blue or charcoal radiation heat reached maximum values after 30 min of the heat treatment then they remained relatively constant throughout the rest time of the experiment. El efecto de dos formas de asado sobre la rancidez oxidativa de la grasa y la oxidación de colesterol en a shawermaa de ternera y pollo fue estudiado durante las tres primeras horas del proceso de asado. La rancidez oxidativa de la grasa fue medida por el índice de ácido tiobarbitúrico (TBA), mientras que el colesterol fue determinado evaluando la concentración de 7-cetocolesterol. No hubo efecto significativo (p .0.05) de la fuente de radiación utilizada en el proceso de asado sobre los índices de TBA o el contenido de 7-cetocolesterol. El grado de instauración de la grasa tuvo un efecto significativo (p .0.05) sobre los índices de TBA y el 7-cetocolesterol. Los valores de TBA y 7-cetocolesterol para las dos formas de asado alcanzaron los máximos después de 30 minutos de calentamiento para luego permanecer relativamente constante durante el resto del tiempo del experimento.
A Logarithmic Finite Difference Method for Troesch’s Problem  [PDF]
M. S. Ismail, K. S. Al-Basyoni
Applied Mathematics (AM) , 2018, DOI: 10.4236/am.2018.95039
Abstract:
The aim of this paper is to derive a numerical scheme for Troesch’s problem and to overcome the difficulty which faces the existing numerical methods when considering the Troesch’s problem with large values of λ. A logarithmic finite difference method is derived for solving the Troesch’s problem. The method is very simple and works well for arbitrarily large values of the Troesch’s parameter. To test the proposed method, we have used a wide range of the Troesch’s parameter λ. A comparison with some existing methods is given. The numerical results show the robustness and the superiority of the proposed scheme over most of the existing numerical methods for the Troesch’s problem.
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