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Now showing items 1241-1250 of 1471
Heavy metals concentrations in Otolithes ruber and Pampus argenteus location from the Gulf
(
Qatar University
, 1999 , Article)
For dermination of the Concentration of six heavy metals ( Cu, Fe, Mn, Zn, Cd, Pb) in the muscle of Oyuber and Py argenteus. Eighty samples were collected from north Qeshm Island in the Persian gulf. For digestion of samples ...
Studies On Possible Factors In Saliva In The Etiology Of Oral Cancer
(
Qatar University
, 1994 , Article)
The present study was performed on 195 individuals divided according to their oral hygiene into the following four groups; Group I: Control healthy individuals; Group II: Patients suffering of early to moderate periodontitis; ...
Plant diversity, dispersion, community similarity and vegetation description in united arab emirates. I. North western area
(
Qatar University
, 1995 , Article)
Papers presented at The gulf symposium on Environmental biology, University of Qatar, 7-9 May 1994
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Plant population patterns in six natural communities (A-F) in the northern part of the UAE were studied. The ...
Effects of gamma radiation on the Elemental composition of the flour moth Ephestia kuhniella z
(
Qatar University
, 1994 , Article)
The effect of gamma radiation on the elemental composition of larvae, pupae and adults stages of the flour moth Ephestia kuhniella after irradiation of eggs to the sterilizing dose was studied. The elemental composition ...
The effect of the insecticide (primicid) On neurosecretory cells of the earthworm aporrectodea caliginosa
(
Qatar University
, 1995 , Article)
The effect of the insecticide "Primicid" on the neurosecretory cells of the cerebral ganglion of the earthworm Aporrectodea caliginosa was studied. The fine changes in the organelles of certain ncurosecrelory cells was ...
Paragorgorhynchus aswanensis n.sp. (acanthocephala: Echinorhychidae): an intestinal parasite of some fishes from aswan high dam lake in upper egypt
(
Qatar University
, 1990 , Article)
Paragorgorhynchus aswanensis n.sp. is described, both by light and scanning electron microscopy, from Lates niloticus,, Clarias lazera, Bagrus bayad, B. docmac, and Tetraodon fahaka, caught from the Aswan High Dam Lake in ...
Correlations of partition data of carboxylic acids in water/organic solvent Systems with solvatochromic parameters
(
Qatar University
, 1994 , Article)
The partition coefficients of C2-Cg carboxylic acid monomeric forms between water and various organic solvents as well as the dimerization constants have been shown to be well correlated in terms of the solvatochromic ...
Capabilities/limitations of landsat-tm data for bathymetric analysis of shallow marine environment: A case study
(
Qatar University
, 1999 , Article)
The intensity of the light received by Landsat satellite sensors is inversely proportional to the path length though the sea water column. Since the light passes down to the sea floor and back again, the intensity should ...
Comparative studies of the oil from silybum marianum cultivated in Egypt using glc
(
Qatar University
, 1994 , Article)
Quantitative comparative study of the oil fraction constituents in the fruits of Silybum marianum successfully cultivated in new reclaimed land with those of the two wild types viz., purple flower and white flower bearing ...
Effect of level of relative humidity on fungi and germination capacity of paddy (oryza sativa l.) Grains in egypt
(
Qatar University
, 1993 , Article)
The changes in the composition of paddy grain-borne fungi in the germination capacity, and in the moisture content of paddy grains at various levels of relative humidity (r.h.) (~ 0-100%) stored at 20°C for 1, 2, 3 and 4 ...