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السجلات المعروضة 11 -- 20 من 140
Improvement Of The Piecewise Approximation Methods
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Qatar University
, 1996 , Article)
A piecewise approximation method is described for planar curves. The order of classical piecewise approximations is improved. The method exploits the freedom in the
choice of the parametrization and rises the approximation ...
The In Vitro Genotoxic Activity Of Albendazole And Praziquantel, Singly And In Combination On Human Blood Lymphocytes
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Qatar University
, 1996 , Article)
Two anthelmintic drugs; Albendazole (ABZ) and Praziquantel (PZQ), applied individually or in combination, were tested at varying concentrations (5,10,20,40 and 100 ug/ml) for their ability to induce sister-chromatid exchanges ...
Serum And Tissue Enzymes And Trace Elements In Hamsters With Schistosomiasis Mansoni And/Or Protein Energy Malnutrition
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Qatar University
, 1996 , Article)
Schistosomiasis is mostly widespread in communities suffering from protein energy malnutrition. The development of an animal model for each condition is required for better understanding of changes in certain biochemical ...
Histological And Histochemical Study Of The Digestive Tract Of The Worm-Like Reptile*, Diplometopon Zarudnyi (Squamata)
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Qatar University
, 1996 , Article)
The structure of the digestive tract of Diplometopon zarudnyi was studied by means of light microscopic histology and PAS reaction. The oesophagus is lined with stratified columnar epithelium while the stomach is lined ...
Sulphur Oxidation In Saudi Arabian Agricultural Soils
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Qatar University
, 1996 , Article)
Laboratory studies were conducted to determine the oxidation of elemental sulphur in eight localities of Saudi Arabian soils. The effect of sulphur application on related properties of calcareous soils in Saudi Arabia was ...
Enzyme production and antibiotic susceptibility of propionibacterium acnes and p. Granulosum from acne vulgaris patients and healthy persons
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Qatar University
, 1996 , Article)
Seventeen strains of Propionibacterium acnes and ten strains of P. granulosum were isolated from acne patients, in addition to ten isolates of each species from healthy persons. All strains were examined for their enzymatic ...
Spore Colour Index And Organic Thermal Maturation Studies On The Pliocene Sediments Of The El Qara-2 Borehole, Nile Delta Area, Egypt
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Qatar University
, 1996 , Article)
Eight conventional core samples from the El Qara-2 well, situated in north central Nile Delta area, Egypt, have been palynologicaly investigated for determining the thermal maturity of the Pliocene Abu Madi and Kafr El ...
Solid-State Ac-Conductivity Analysis For The Long Debated Catalytic Activity Of The Boralite Sieve
(
Qatar University
, 1996 , Article)
The ac-phase dependent impedance, capacitance and dielectric loss of boralite are measured and correlated with those of a similar history HZSM-5 as a function of frequency (0.1-100 kHz) and temperature (373-638 K) at 0.8 ...
A Markov Chain Model For River Flow
(
Qatar University
, 1996 , Article)
This paper is concerned with a trinary transformation of river flow. The transformed flow is modeled as a three-states Markov chain and both upcrossing and downcrossing problems are studied simultaneously. The stationary ...
Biochemical Composition Of The Squid (Loligo Vulgaris) (Mollusca) From The Mediterranean Waters Off Alexandria, Egypt
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Qatar University
, 1996 , Article)
The seasonal biochemical variations of the squid Loligo vulgaris from the Egyptian Mediterranean waters off Alexandria were studied during November 1989 through August 1990. Water, lipid, protein and ash contents were ...