Search
Now showing items 91-100 of 108
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 ...
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 ...
السنة النبوية المشرقة ونظرات في أدلّتها
(
Qatar University
, 1989 , Article)
أساليب التمويل الصناعي المتاحة للبنوك الإسلامية و الحاجة إلى أساليب جديدة
(
Qatar University
, 1989 , Article)
An Optimum Performance of A Flat-Type Solar Air Heater With A Porous Absorber
(
Qatar University
, 1989 , Article)
This investigation is concerned with the design and performance of a flat solar air heater in which air flows perpendicular from a vented transparent cover through a porous absorber plate. The design phase involves a ...
Chemical survey of some plants Growing in Qatar
(1989 , Other)
Fifty one plants growing in Qatar, belonging to thirty families, were surveyed for alkaloids, anthraquinones, coumarins, flavonoids, tannins and saponins. The medicinal uses of these plants arereported.
Studies On Bottom Trawling And Demersal Fishes Of Qatar Waters, Arabian Gulf
(
Qatar University
, 1989 , Article)
The bottom trawl fishery and their by-catch from Qatar waters were analysed on a systematic basis for species composition, length, weight and girth-among other things-during the year 1986-1987. The resuls proved a steady ...
Variation Of The Electrical Properties Of Manganese Thin Films With Deposition Conditions
(
Qatar University
, 1989 , Article)
The behaviour of the electrical properties of manganese thin films of different thickness (240 - 1500 A) evaporated under different deposition conditions was studied. The effect of the rate of evaporation (1-7 A/s), the ...
Paleozoic Igneous Activity In Egypt
(
Qatar University
, 1989 , Article)
Based on available isotopic age data, including a few K/Ar ages obtained by the writer, a geochronological sequence of the main phases of igneous activity in Egypt during the Paleozoic is presented. Five main phases at ...
By-Catch Of Commercial Bottom Trawl Fishery From Qatar Waters, Arabian Gulf
(
Qatar University
, 1989 , Article)
The by-catch of the bottom trawl fishery from Qatar water, Arabian Gulf was analysed during the year (1987) on bimonthly basis. It was estimated that 496-635 tons were discarded as by-catch which included a lot of commercialy ...