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Photoperiod and salinity effects on survival and some blood parameters in female Bufo regularis
(
Qatar University
, 1986 , Article)
This study, investigates the effect of different salinities injected (30, 70 and 100 % sea water) and photoperiods (L:D/8:16,L:D/12:12 and L: D / 16 : 8 ) on female Bufo regularis (1) survival rate, (2 ) oxygen and carbon ...
Interpretation of Gravity Anomalies Due to Lens-Shaped Structures
(
Qatar University
, 1982 , Article)
One of the interesting exploration problems in hydrogcology is finding subsurface geological lens-shaped structures. This paper deals with the interpretation of such structures using their gravity anomalies. A master curve ...
Neutron Diffraction and Mossbauer Effect Study of a Cobalt Substituted Zinc Ferrite
(
Qatar University
, 1982 , Article)
The mixed cubic ferrite Zno.g5 €00.15 Fez 04 is studied by neutron diffraction and Mossbauer effect techniques at the temperature range 4.2 - 293 °K. The obtained spectra by both methods at low temperature show a long range ...
Mossbauer Effect Study of the Cations Distribution and its Influence on the Electric Field Gradient of the Cdx Co1-x Ferrite System
(
Qatar University
, 1982 , Article)
In the ferrite system Cd,Co,_x Fe; 04 (X=0.0, O.I, 0.2, ....... , 1.0). it was
found that the introduction of Co2'1' decrease the EFG at the octahedral B-site. This was attributed to the distributions of the different ...
Insect Pests Attacking Vegetable Crops in the State of Qatar (Abstract)
(
Qatar University
, 1982 , Article)
The area cultivated with vegetable crops in the State of Qatar reached, during 1979 and 1980, a percentage of about 42.9 % of the total cultivated (or suitable to be cultivated) area. Vegetable crops selected for collecting ...
Hydrography Of The Western Part Of The Arabian Gulf
(
Qatar University
, 1986 , Article)
The hydrographic conditions in the western part of the Gulf, from Kuwait to UAE, were studied. Water temperature, salinity, sigma T and water masses were determined for two cruises. The first cruise was carried out from ...
Demersal Fish Resources Around Qatar
(
Qatar University
, 1982 , Article)
The study was based on the data available from Fishery Resources Survey in the Gulf and Gulf of Oman, conducted by F.A.O., between 1975 and 1979 and the samplings of the fish production in Qatar during 1980/81. The survey ...
Effect of some Vegetable Plant Hosts on the Biological Responses of Brevicoryne Brassicae (L) and Aphis Gossypii (Glover).
(
Qatar University
, 1982 , Article)
The influences of these different vegetable plant hosts on the biological response of Brevicoryne brassicae (L) and Aphis gossypii (Glover) were studied.
The results obtained for B. brassicae (L) indicated that the lowest ...
Geomorphology of the Nagada Region Upper Egypt
(
Qatar University
, 1982 , Article)
Detailed geomorphological study of the Nagada region, west of-the Nile enables us to better understand the main landfonns in this part of Upper Egypt.
Six geomorphic features are recognized including: the Thebaid plateau; ...
Bionomics of the Shrimp Fishery in the Inshore Waters of Qatar
(
Qatar University
, 1982 , Article)
The shrimp fishery in Qatar is carried out by artisanal crafts, operating from Doha and Al Khor on the East coast. The fishing is restricted to the 2-6 Fm depth range and Penaeus semisulcatus forms about 95 % of the shrimp ...