S. M. El-Shoura

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Estimating the flows of rivers can have significant economic impact, as this can help in agricultural water management and in protection from water shortages and possible flood damage. The first goal of this paper is to apply neural networks to the problem of forecasting the flow of the River Nile in Egypt. The second goal of the paper is to utilize the(More)
The semen parameters and sperm ultrastructural morphology have been described in semen samples from two groups of Yemeni subjects. The first 'exposed' group comprised 65 khat addicts, while the second control group included 50 non-khat addict subjects. The mean age was 39.94 +/- 13.85 and 35.72 +/- 11.35 years in the exposed and control groups respectively,(More)
New ultrastructural observations are described in skin lesions of two brothers with Richner-Hanhart's syndrome (RHS). Physical examination of the two patients showed painful skin lesions of palms and soles combined with denderitic corneal ulceration and mental retardation. The diagnosis of RHS was confirmed biochemically with high tyrosine levels in both(More)
New ultrastructural observations on the sequences of adherence, attachment, and penetration of Helicobacter pylori (HP) into the gastric epithelium were described in 32 endoscopic biopsies selected randomly from 168 samples of patients with active chronic gastritis. The adherence of HP to the target cell was initiated by direct contact with the microvillar(More)
The internal fine structure of the partially calcified Schistosoma haematobium eggs in the lower ureteral segments of Saudi patients with chronic urinary schistosomiasis is described. The egg shell is penetrated by cribriform pores and consists of the three previously described layers: outer microspinous, middle intermediately dense, and inner dense layers.(More)
The fine structure of egg granuloma forming cells is described in lower ureteral segments of patients chronically infected with Schistosoma haematobium. The infiltrates consisted of monocytes, macrophages, lymphocytes, plasma cells, neutrophils, eosinophils, fibroblasts, mast cells, and blood platelets. The abundant monocytes and macrophages were actively(More)
The cellular dynamic against deposited Schistosoma haematobium eggs was studied in the submucosa and muscularis of the lower ureteral segments of Saudi patients with chronic urinary schistosomiasis. This dynamic activity was greatly affected by the damaged phase of the egg embryo. Freshly deposited eggs with "healthy" embryos were entirely surrounded by(More)
The fine structure of the intraerythrocytic asexual forms of Plasmodium falciparum is described before and during treatment with chloroquine (CQ) in the venous blood of 27 Saudi patients whe were heavily infected with the parasite. Before treatment, the "pear" shaped merozoite was rapidly transformed into a ring-shaped trophozoite. This was enclosed in a(More)
The ultrastructural pathological alteration of the renal glomeruli is described in nine patients with acute Plasmodium falciparum infection. Glomeruli were large and hypercellular with various types of blood cells in their capillary lumena. These were occasionally occluded with enlarged endothelial cells. Epithelial cells, or podocytes, were hypertrophied(More)
Several ultrastructural alterations have been displayed by non-parasitized erythroblasts (Eb) and erythrocytes (Ec) in the peripheral blood of 28 Saudi patients who were anaemic and suffering from acute falciparum malaria (AFM). A counting system is incorporated to determine the rate of altered to normal red cells in plastic serial sections. The Eb showed(More)