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Now showing items 181-190 of 205
Effects Of Gamma Radiation On The Motility And Attraction Of The Mediterranean Fruit Fly Ceratitis Capitata Wied, To Light, Colours And Odour
(
Qatar University
, 1988 , Article)
Full grown pupae of the Mediterranean fruit fly, Ceratitis capitata were irradiated at three gamma dosages (50, 70 and 90 gray). The different effects on the motility and attraction to light colours and odour of the produced ...
On The Earthworm Fauna And Distribution In The State Of Qatar
(
Qatar University
, 1986 , Article)
This paper is a preliminary account of the earthworms collected in February and March, 1986, from 10 localities in Qatar. Five species, Amynthas corticis (Family Megascolecidae), Dichogaster bolaui (Family Octochaetidae), ...
Studies on digenetic trematodes of some red sea fish 1. General survey
(
Qatar University
, 1983 , Article)
812 Red Sea fish, belonging to 33 species, were examined for digenetic trematodes. All species of fish were infected with one or more genera of trematodes. Out of 812 fish, 394 (48.5%) were positive. The incidence of ...
Plant growth, metabolism and adaptation in relation to stress conditions. Vii. Respiration, nitrogen and proline contents in french bean and maize plants as influenced by salinity
(
Qatar University
, 1989 , Article)
Carbon dioxide production by seedlings, whole plants and leaves of French bean
and of maize showed progressively greater increases with increasing concentrations
of Na2S04 added to the basal medium. Also, in response to ...
Petrophysical Studies on Samples from Eocene Exposures West Cairo-Egypt
(
Qatar University
, 1981 , Article)
The present work deals with petrophysical and petrochemical studies on 58 limestone samples of Eocene age in two localities west of Cairo (Sakkara and Giza Pyramids Plateau). The determined petrophysical properties are: ...
Morphometry of Desert Wadi Drainage on the West Bank between Danffq and Dallas, Luxor-Qena Region, Egypt.
(
Qatar University
, 1982 , Article)
Quantitative measurements of lineation and morphometric analyses of 24 wadi drainage basins on the west bank of the Nile between Danfiq and Ballas. Luxor-Oena region, reveal that (1) the drainage lines are mainly perpendicular ...
Seismic Resolvable Frequency Band For The Pre-Miocene Oil Targets Ras Budran, Gulf Of Suez, Egypt
(
Qatar University
, 1988 , Article)
Seismic attenuation problem in Ras Budran area, Gulf of Suez was tackled by defining the resolvable frequency band. This band can transmit through the Miocene evaporitic cyclic section and hit pre-Miocene oil targets. This ...
Effect Of Oral Administration Of Alcohol On The Developing Rat Embryos
(
Qatar University
, 1988 , Article)
Pregnant rats were forced to ingest 0.015 ml of 25% ethanol/gm body weight daily starting from day 7 (D7-group) or day 9 (D9-group) until day 15 of gestation. The number of surviving embryos significantly decreased and ...
Aminoacid derivative? With psychotogenic activity by
(
Qatar University
, 1989 , Article)
As a part of an extensive programme concerned with the syntheses and investigation of a group of benzilyl-aminoacid and diphenylacetylaminoacid, piperidine esters possessing psychotogenic properties, attention has been ...
Studies on growth and chemical composition of tobacco varieties. IV - comparative effects of various combinations of fertilizers on economic potentialities of tobacco plants
(
Qatar University
, 1987 , Article)
In two experiments, tobacco plants were treated with various combinations of ammonium nitrate (23% N) and compound C (3.5% N, 23% P and 16% K). At all levels used in experiment I, stem length and number of leaves were ...