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Search Results: 1 - 10 of 461886 matches for " A. Elzaki "
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Extensive Quantitative Analysis of Gallstones  [PDF]
Saadeldin A. Idris, Kamal Elzaki Elsiddig, Aamir A. Hamza, Mohamed M. Hafiz, Mohammed H. F. Shalayel
International Journal of Clinical Medicine (IJCM) , 2014, DOI: 10.4236/ijcm.2014.51009

Background: The chemical composition of gallstones is essential to study aetiopathogenesis of gallstone disease. Objective: To determine the composition of gallstones in a Sudanese population. Patients and methods: It describes an extensive quantitative analysis of gallstones from patients presented with symptomatic gall stone disease and treated by cholecystectomy after the acceptance of the pre-given informed consent in Khartoum teaching hospital in the period between Jan 2010 and Dec 2010. Using a pretested questionnaire data collected from and analyzed statistically by SPSS computer program version 21. Results: Data are analyzed from 94 patients (six males and 88 females). Cholesterol stones showed a significantly higher cholesterol content than pigment stones (p = 0.0042), though not significantly higher than mixed stones. Their phospholipids content and inorganic phosphates were higher than in the other types of stones and oxalate content was significantly elevated in comparison with mixed stones (p = 0.0402). In mixed stones, the cholesterol, bile acids, and bilirubin were intermediate between cholesterol and pigment stones, whereas triglycerides were significantly more than pigment stones (p = 0.0007). Bilirubin (p = 0.0021) and bile acids (p = 0.0016) were significantly higher than cholesterol stones (p = 0.0001) and (p = 0.0001) respectively. However, they contained the lowest amounts of sodium, potassium, magnesium, and oxalate. In pigment stones, bilirubin was significantly higher (p = 0.0001) than both groups. Conclusion: Collaborations between surgeons, nutritionists, biochemists, and physicians should be stimulated in future studies to define the different types of gall stones in different areas in Sudan and the relevancy of such types with diets’ traditions.

The Sensitivity of Computerized Tomography in Diagnosis of Brain Astrocytomas  [PDF]
E. Abd Elrahim, A. Elzaki, Ali Hassan, A. M. Abd Elgyoum, H. Osman
Open Journal of Radiology (OJRad) , 2014, DOI: 10.4236/ojrad.2014.44040
Abstract: Astrocytomas are tumors that arise from astrocytes—star-shaped cells that make up the “glue-like” or supportive tissue of the brain. Astrocytomas can appear in various parts of the brain and nervous system, including the cerebellum, the cerebrum, the central areas of the brain, the brainstem and the spinal cord. The main objective of this study was to detect the sensitivity of the CT scan in diagnosis of the brain astrocytoma, in patients who were confirmed as brain gliomas using computerized tomography of the brain versus brain tissue biopsy after surgery. One hundred and one patients were included in this study. Bio-data collected for these patients (age, gender), radiographic appearance, contrast enhancement and the site of the tumor, were statistically analyzed. Out of the 101 patients with brain gliomas, 52 (51.5%) were male whose ages ranged between 1 and 80 years, and 64 (63.4%) cases were diagnosed as astrocytoma by CT. This study concluded that the CT brain was sensitive in the diagnosis of brain astrocytomas.
Comparison between the Laplace Decomposition Method and Adomian Decomposition in Time-Space Fractional Nonlinear Fractional Differential Equations  [PDF]
Mohamed Z. Mohamed, Tarig M. Elzaki
Applied Mathematics (AM) , 2018, DOI: 10.4236/am.2018.94032
The aim of this paper is to discuss application of Laplace Decomposition Method with Adomian Decomposition in time-space Fractional Nonlinear Fractional Differential Equations. The approximate solutions result from Laplace Decomposition Method and Adomian decomposition; those two accessions are comfortable to perform and firm when to PDEs. For caption and further representation of the thought, several examples are tool up.
Solution of nonlinear differential equations using mixture of Elzaki transform and differential transform method
T. M. Elzaki
International Mathematical Forum , 2012,
A solution for nonlinear systems of differential equations using a mixture of Elzaki transform and differential transform method
T. M. Elzaki
International Mathematical Forum , 2012,
On Existence and Uniqueness of Generalized Solutions for a Mixed–type Differential Equation
Adem Kilicman,Tarig Elzaki,Hassan Eltayeb
Journal of Mathematics Research , 2010, DOI: 10.5539/jmr.v2n4p88
Abstract: In this paper, we study boundary value problems for a mixed–type differential equation. The existence and uniqueness of generalized solution is proved. The proof is based on an energy inequality and density of the range
Pattern of malaria transmission along the Rahad River basin, Eastern Sudan
Yousif E Himeidan, Mervet M Elzaki, Eliningaya J Kweka, Muntaser Ibrahim, Ibrahim M Elhassan
Parasites & Vectors , 2011, DOI: 10.1186/1756-3305-4-109
Abstract: A longitudinal study for mosquito sampling using pyrethrum spray catch (PSC) was conducted in two villages (Koka & Um Salala) along the Rahad River basin from December 2005 to October 2006. The Plasmodium falciparum circumsporozoite (CSP) and human blood index (HBI) were detected by ELISA. Three seasons were considered and the surveys represented cool dry, hot dry and rainy seasons were November - February, March - June, July - October, respectively. The CSP was compared between the seasons and populations using Chi-square test. The differences between the seasons and the populations in the other entomological indices, including Entomological Inoculation Rates (EIR), were measured using Tukey-Kramer HSD and Student T-test, respectively. The association between An. arabiensis density and monthly total rainfall was examined using regression analysis.A total of 1,402 adult female anopheline mosquitoes were sampled, of which 98% were An. gambiae complex; the rest were An. rufipes. All specimens of An. gambiae complex identified by the PCR were An. arabiensis. Bimodal annual peaks of An. arabiensis densities were observed following the peak of rainfall and recess of the Rahad River after a time- lag of two months (Koka r = 0.79, d.f. = 1, P = 0.05; Um Salala, r = 0.88, d.f. = 1, P = 0.02). The CSP differed significantly among the seasons only in Koka (P = 0.0009) where the mean was nine times higher than in Um Salala (P = 0.0014). Active transmission was observed in Koka during the hot, dry season (CSP = 6.25%) and the EIR was observed to be 0.01 ib/p/n during this time. The EIR peaked to 0.71 ib/p/n during the rainy season and decreased to 0.18 ib/p/n during the minor peak of the cool dry season (P = 0.54). The combined annual average of the EIR for both populations was 55.48 ib/p/y and, typically, it would take approximately 192.7 days for an individual to receive an infective bite from An. arabiensis.The bimodal annual peaks and the active transmission observed during
Tuberculous Lymphadenitis: Skin Delayed-Type Hypersensitivity Reaction and Cellular Immune Responses
EAG Khalil, AA Elnour, AM Musa, AA Elagib, SH Hassab Elgawi, WMA Ismail, KE ELzaki
West African Journal of Medicine , 2011,
Abstract: Background: Tuberculous lymphadenitis (TL) is the commonest form of extra-pulmonary tuberculosis in tropical countries. Objective: This study aimed to characterize in vivo and in vitro cellular immune responses to Mycobacterium PPD in TL patients as markers of disease and healing. Methods: Following informed consent, 36 TL patients, 40 patients with pulmonary tuberculosis (TB) and 20 apparently healthy individuals were enrolled when they met specific selection criteria. The tuberculin skin test (TST) and peripheral blood mono-nuclear cells (PBMCs) culture were conducted using PPD. The cytokines were measured using commercial kits. Results: The mean TST was 24.6 ±8.0 mm for TL patients. The TST was variable in pulmonary TB patients and healthy individuals. It was reactive in a third of pulmonary TB patients with a mean of 20 ±3.0 mm and reactive in half of the healthy individuals with a mean of 12.6 ±3.2 mm. Pre and posttreatment interferon gamma (IFN-γ) mean levels were 498.6 ±905.8 pg/ml and 710.0 ±844.6 pg/ml respectively (p=0.0001) for TL patients, while IL-10 mean levels were 93.0 ±136.0 pg/ml and 32.4 ±31.7 pg/ml respectively (p= 0.0001). TST-reactive Pulmonary TB patients had significantly higher IFN-γ (851 ±234.4 pg/ml) compared to TBLNT patients (p = 0.0001), while pulmonary TB patients had significantly lower IL-10 compared to TBLNT patients (p=0.0001). Apparently healthy individuals had significantly lower IFN-γ and IL-10 levels compared to TBLNT and pulmonary TB patients (p=0.003). Conclusion: Strong TST reactivity, high IFN-γ and IL-10 levels are good surrogate markers of active TBLNT, while increasing IFN-γ levels and decreasing IL-10 levels mark healing. Tuberculosis Skin Test reactivity although a good diagnostic marker does not disappear with treatment.
Dynamics of pfcrt alleles CVMNK and CVIET in chloroquine-treated Sudanese patients infected with Plasmodium falciparum
Nahla B Gadalla, Salah Elzaki, Ebtihal Mukhtar, David C Warhurst, Badria El-Sayed, Colin J Sutherland
Malaria Journal , 2010, DOI: 10.1186/1475-2875-9-74
Abstract: Treatment outcomes were determined for 93 patients of all ages in a per protocol cohort using a modified 14-day WHO protocol. Parasite DNA samples at days 0, 1, 2, 3, 7 and 14 following treatment were analysed using real-time quantitative PCR methods that distinguished resistant and sensitive genotypes at amino acids 72 - 76 of the pfcrt locus.Chloroquine treatment was not efficacious, and of 93 assessable patients, only 10 individuals (10.7%; 95% C.I. 4.34 - 17.2%) enjoyed an adequate clinical and parasitological response. Resistant parasites with the haplotype CVIET at codons 72-76 of the pfcrt locus were dominant in the starting population. Chloroquine sensitive parasites with the haplotype CVMNK were detected in 19 individuals prior to treatment (20.43%; 95% C.I. 5.14 - 18.5%). In these patients, CQ treatment rapidly selected CVIET parasites, and this haplotype overwhelmingly dominated the parasite population in each individual by day 2 after treatment.Such rapid intra-host selection of particular genotypes after the introduction of drug will cause frequent misidentification of parasite genotypes present in the starting population. This will have a potentially serious confounding effect on clinical trials which employ PCR-corrected estimates of treatment failure, as resistant parasites below the detection threshold in the pre-treatment sample can be erroneously classified as "new" infections during follow-up, over-estimating drug efficacy.The malaria parasite Plasmodium falciparum causes considerable morbidity and mortality in the tropics, exacerbated in the last decade of the 20th century by widespread drug resistance in endemic areas [1]. Resistance to chloroquine, the cheapest and most widely available anti-malarial, has reached significantly high levels leading to replacement with artemisinin-based combination therapy (ACT) in many malaria-endemic countries [2]. Genetically, chloroquine resistance (CQR) has been linked to 15 polymorphisms in the pfcrt gene f
The Spread of Infectious Disease on Network Using Neutrosophic Algebraic Structure  [PDF]
A. Zubairu, A. A. Ibrahim
Open Journal of Discrete Mathematics (OJDM) , 2017, DOI: 10.4236/ojdm.2017.72009
Abstract: Network theory and its associated techniques has tremendous impact in various discipline and research, from computer, engineering, architecture, humanities, social science to system biology. However in recent years epidemiology can be said to utilizes these potentials of network theory more than any other discipline. Graph which has been considered as the processor in network theory has a close relationship with epidemiology that dated as far back as early 1900 [1]. This is because the earliest models of infectious disease transfer were in a form of compartment which defines a graph even though adequate knowledge of mathematical computation and mechanistic behavior is scarce. This paper introduces a new type of disease propagation on network utilizing the potentials of neutrosophic algebraic group structures and graph theory.
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