بحث بسيط
السجلات المعروضة 1 -- 10 من 39
The fecundity of gerres oyena forskal 1775, ( fam. Gerreidae) in the qatari waters of the arabian gulf
(
Qatar University
, 1986 , Article)
Fecundity estimates were made on a total of 180 mature fish Genes oyena Forskal of different lengths and weights, collected during the early spring of 1985. Log-log relationships were estimated between fecundity (either ...
Studies on the biology of eucalyptus micro theca f. Muell in the gezira, sudan i. The behaviour of the seed
(
Qatar University
, 1986 , Article)
Eucalyptus microtheca has proved to be a success on the heavy clay soils of the Gezira. This tree species not only seeds regularly and prolifically during the summer, but also, though rarely, seeds during the winter. The ...
Synthesis and reactivity of 2-chloro-4-phenyl-6-p-tolyl-nicotinonitrile Towards some nucleophiles
(
Qatar University
, 1986 , Article)
The synthesis and reaction of 2-Chloro-4-phenyl-6-p-tolyl- nicotinonitrile (I) with hydrazine hydrate, sodium azide and urea to give the corresponding hydrazino tetrazolopyridine and urea derivatives respectively, are ...
The toll of toil: manual labour in the works of D. H. Lawrence and Robert Tressell
(
Qatar University
, 1986 , Article)
Islamization of the educational system for Muslims in secular society
(
Qatar University
, 1986 , Article)
طرق التحليل المورفومتري لشبكات التصريف المائي
(
Qatar University
, 1986 , Article)
المثلثات اللغوية : متونها ومنظوماتها حتى نهاية المائة السابعة للهجرة
(
Qatar University
, 1986 , Article)
إشكالية الشعر الحديث في الخليج
(
Qatar University
, 1986 , Article)
On Existence Of Two Real Periodic Solutions Of Differential Equations Of Riccati Type
(
Qatar University
, 1986 , Article)
In this paper we consider the two equations
z^z^p^z+r^t), (*) z^z^ptOz+r^t), (••)
where z € C, p, r) and r^ are real, continuous and periodic with period T.
It was shown ...
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 ...