Browsing Qatar University Science Journal - [From 1981 TO 2007] by Title
Now showing items 295-314 of 770
-
Glaciations In The Arabian Peninsula
( Qatar University , 1990 , Article)Glaciations affected the Arabian Peninsula three times. This was during the Late Ordovician, the Late Carboniferous-Early Permian, and the Pleistocene. Recorded evidence of Paleozoic glaciations in Arabia, includes tillites, ... -
Global And Ultravoilet Radiation Over Kuwait
( Qatar University , 1999 , Article)The data of six spectral bands of solar radiation over Kuwait were measured locally, during the period of time starting May 1, 1995 until February 5,1998. Near ultraviolet spectral band (315-380) nm, shows very week ... -
Gonadal Development Of Lead Intoxicated Rat Embryos
( Qatar University , 1987 , Article)Pregnant rats injected with 60ju,g lead nitrate/gm body weight on day 8 of gestation showed a significant fetal resorption and reduced size of gonads on day 13.5 gestation. Incidence of fetal death and fetal resorption ... -
Gravitational Instability of a Radiating Gas Cloud with Variable streams
( Qatar University , 2001 , Article)The self-gravitating instability of a radiating gas cloud possessing variable streams is investigated. The self-gravitating force is destabilizing according to restrictions, the radiation has a strong stabilizing influence ... -
Gravitohydrodynamic Instability Of A Streaming Fluid Cylinder
( Qatar University , 1996 , Article)The capillary-gravitodynamic instability of a self-gravitating fluid cylinder (radius R«) dispersed in a self-gravitating medium of negligible motion has been developed. General stability criteria are derived, upon utilizing ... -
Gravity investigation for detecting The subsurface basement topography Of the western part of behera Governorate, North Egypt
( Qatar University , 1999 , Article)One of the most effective tools for exploration of the subsurface basement topography is the gravity method. The Bouguer gravity map of the western part of Behera Govemorate west of the Nile Delta of Egypt has been analyzed ... -
Growth and production of tropane alkaloids by cell suspension cutures of hyoscyamus albus L.
( Qatar University , 1990 , Article)Cell suspension of Hyoscyamus albus L. were investigated for growth and production of tropane alkaloids in three different media. The effects of sucrose concentration and initial pH were also studied. 2,4- Dichlorophenoxyacetic ... -
Growth and protein content of wheat kernels treated with three Growth regulators
( Qatar University , 1993 , Article)Alar, asulam or kinetin at different doses were sprayed on wheat plants and their effects on growth and protein of the developing kernels were investigated. Grain fresh matter was significantly increased in response to 200 ... -
Haemogregarines of geckos in egypt, together with a description of haemogregarina helmymohammedi n.sp.
( Qatar University , 1995 , Article)Three species of geckos collected from various localities in Egypt were examined for protozoan blood parasites. Haemogregarines were reported in all the three species of geckos. Problems of the generic and specific ... -
Halophytes and Soil Salinity in Qatar
( Qatar University , 2002 , Article)Saline soils cover approximately 6% of the land in Qatar. Halophytes are common along the coastal areas and inland salt flats and wetlands, where saline water is available in their natural habitats permanently or periodically. ... -
Harmful Effects Of Sea Water Administration On Kidney Structure And Function
( Qatar University , 1992 , Article)Ratlus rattus received oral int'usiuii „; 3 ml of sea water for 5 consecutive days. Certain blood parameters and kidney structure and function were studied 24 hours and one week later. Hematocrit. plasma osmolality, sodium, ... -
Heat Budget of the Southeastern Part of the Arabian Gulf
( Qatar University , 2001 , Article)The surface heat fluxes through the air-sea interface for the coastal water of the southeastern part of the Arabian Gulf have been estimated using the bulk formulas. The annual mean values of the sensible, latent and back ... -
Heat Storage In The Eastern Mediterranean
( Qatar University , 1993 , Article)Results of the monthly climatological fields of heat storage for the Eastern Mediterranean are presented. The zonal annual trend of monthly mean heat storage in the Levantine, Aegean and Ionian Seas are shown as well as ... -
Heavy Metals Concentration Levels in some Fish Species in the Red Sea and Gulf of Aden-Yemen
( Qatar University , 2002 , Article)Level of heavy metals (Zn, Cu, Pb, and Cd) in four species of fish; manly, fish, Crenidens Crenidens, Scomberomorus Commerson, Rastrelliger Kanagurta, Thunnus Albacares were studied in the Red Sea of Yemen and the Gulf of ... -
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 ... -
Heavy minerals and provenance of the paleozoic suffi formation, Western desert, iraq.
( Qatar University , 1996 , Article)Heavy minerals analyses were carried out on 10 samples from the clastic Suffi Formation (the Ordovician-Carboniferous unit in the western Iraqi desert). The suite of minerals consists mainly of opaque minerals including ... -
Helminth parasites of fishes from the arabian gulf 1. Preliminary general survey of fishes mainly from qatari waters
( Qatar University , 1986 , Article)The present work reports the results of a preliminary survey on the helminth parasites of some fish, caught mainly from Qatari waters in the Arabian Gulf. The incidence of helminth infections varied in various fish families, ... -
Helminth parasites of fishes from the arabian gulf 2 . the digenetic trematode genera Hamacreadium linton, 1910 and cainocreadium Nicoll, 1909
( Qatar University , 1986 , Article)The status of the related digenetic trematode genera Hamacreadium Linton 1910 and Cainocreadium Nicoll, 1909 is briefly reviewed. Hamacreadium Linton 1910 is described from Lutjanus fulviflamma and L. russelli. Cainocreadium ... -
Helminth parasites of fishes from the arabian gulf 3. On pseudoplagiopobus microrchis, yamaguti, 1942 (digenea: opecoelidae)
( Qatar University , 1987 , Article)The trematode genus Pseudoplagioporus Yamaguti, 1938 is briefly reviewed. P. microrchis Yamaguti, 1942 is redescribed from Lethrinus lentjan and L. nebulosus caught from Qatari waters in the Arabian Gulf. This is the first ... -
Helminth parasites of fishes from the arabian gulf: 4. On allacanthochasmus lutjani n.sp. And metadena leilae nagaty, 1957 (digenea: cryptogonimidae)
( Qatar University , 1988 , Article)Allacanthochasmus lutjani n.sp. is described from Lutjanus fulviflamma caught from Qatari waters in the Arabian Gulf. It differs from other species of the genus, mainly by the shape and position of the ovary, presence of ...
