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Distribution, Genesis And Thermal Behaviour Of Clay Minerals In The Miocene Argillaceous Rocks In Qatar, Arabian Gulf
(
Qatar University
, 1989 , Article)
XRD and DTA were utilized to investigate quantitatively the clay-mineral composition of the argillaceous rocks in four Miocene stratigraphic sequences located in western and southwestern Qatar. These rocks belong to the ...
Time And Order Of Appearance Of Ossification Centres Of The Rat Skeleton
(
Qatar University
, 1985 , Article)
The time and sequence of ossification pattern of the skeletal system of the Rattus rattus were studied in serial whole mounts prepared from Day 10 to Day 21.5 (day of delivery). In the neurocranium, each bone is represent ...
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 ...
Pelagic Fish Resources And Their Fishery Around Qatar
(
Qatar University
, 1983 , Article)
The existing pelagic fishery around Qatar is relatively smaller than the demersal fishery. Inshore and offshore gillnetting trolling and even bottom trawling, contribute to the production of pelagic fish species. About 30 ...
Dehydration of Ethanol over HF-treated Al2 O3 using the GC-column as Chemical Reactor
(
Qatar University
, 1981 , Article)
The effect of treating •y-alumina with hydrofluoric acid on the dehydration reaction of ethanol was investigated at 325°C. The gas chromatographic column was used as a chemical reactor. The rate of formation of ethylene ...
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, ...
Fe57 Mossbauer Study In Cobalt Substituted Magnetite
(
Qatar University
, 1983 , Article)
The Mossbauer effect has been studied in the mixed ferrites CoxFe3_x04 (for x = 0.8, 0.9 and 1) with the spinel structure in the temperature range between 78 and 830K. The composition with x = 1, showed an expected Zeeman ...
A Preliminary List Of The Insect Fauna Of Qatar
(
Qatar University
, 1985 , Article)
The present paper give a preliminary account of the entomofauna of Qatar. It has a complex composition, the species are a heterogenous group with diverse distribution patterns.
The account does not lay to completeness. ...
Some Aspects Of The Autecology Of Panicum Turgidum Forsk
(
Qatar University
, 1983 , Article)
The germination of Panicum turgidum seeds was tested under different conditions. They showed ability to germinate under a range of temperatures from 25-42°C. The maximum percentage of germination was 45%, at 30°C. The ...
Studies in bidirectional movement in vicia faba l.
(
Qatar University
, 1984 , Article)
Surgery was used to investigate bidirectional movement in a single vascular bundle of Vicia faba L. In one experiment it was found that radiocarbon had moved upwards and downwards via one isolated bundle when leaf one and ...