Samir Hassan

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Blood to the pelvic limb of the ostrich is provided by the external iliac and ischiatic arteries that arise from the descending aorta. The external iliac artery (a.) gave rise to the pubic a. that supplied the obturator muscles and continued as the femoral a. The femoral a. gave off three branches: (1) cranial coxal a. to muscles above the pre-acetabular(More)
Much attention is focused on environmental contamination by heavy metals. The heavy metal mercury is found worldwide and is ranked number 3 on the Comprehensive Environmental Response, Compensation and Liability Act substance list. We examined the effect of low-level methylmercury exposure on central nervous system development of wild-type zebrafish embryos(More)
BACKGROUND 'Acute lymphoblastic leukemia is the most common childhood malignancy'. Adding methotrexate to treatment protocols increased survival rate in children with leukemia. Methotrexate efficacy is limited by its hepatotoxicity. AIM OF THE STUDY To assess the therapeutic value of Black seed oil in 'methotrexate induced hepatotoxicity in Egyptian(More)
BACKGROUND Infection 'is a common complication in children with hematological malignancies' during febrile neutropenia. ' OBJECTIVE The aim of this study was to' evaluate common bacterial and fungal pathogens in children with hematological malignancies during febrile neutropenia in single center Egyptian study. ' PATIENTS AND METHODS This study was(More)
The pelvic limb of the ostrich is innervated by the lumbar and sacral plexuses. The lumbar plexus gave rise to several nerves (N.s) including, N. coxalis cranialis, lateral and cranial femoral cutaneous N.s, N. femoralis, cranial, caudal and medial crural cutaneous N.s, and N. obturatorius. The remaining nerves emanated from the sacral plexus. The N.(More)
BACKGROUND Postoperative junctional ectopic tachycardia is one of the most serious arrhythmias that occur after pediatric cardiac surgery, difficult to treat and better to be prevented. Our aim was to assess the efficacy of prophylactic dexmedetomidine in preventing junctional ectopic tachycardia after pediatric cardiac surgery. METHODS AND RESULTS A(More)
The objective of this study was to assess rangeland rehabilitation community based projects in Sahelian Sudan with specific focus on Giriegikh scheme in north Kordofan in order to verify the important role of such projects into environmental conservation and rural community development. Fieldwork surveys were conducted during 2005 and 2006 into human(More)
BACKGROUND Acute lymphoblastic leukemia (ALL) is the most common childhood cancer representing 23% of pediatric cancers. Wilms' tumor -1 gene is a novel prognostic factor, minimal residual disease marker and therapeutic target in acute leukemia. AIM OF THE WORK The aim of this work was to study the impact of WT-1 gene expression in the prognosis of ALL.(More)
This paper describes the organisation of a concurrent functional simulator employing transputers which gives considerably improved performance over conventional simulators. The parallel organisation allows a novel feature, <i>incremental simulation</i>, to be provided which allows the simulator to respond very quickly to design changes thereby allowing the(More)
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