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السجلات المعروضة 51 -- 60 من 69
Night Distribution Of Certain Species Of Coleoptera As Indicated By Captures In A Light Trap At Quena
(
Qatar University
, 1984 , Article)
The night distribution of nineteen species over a whole trapping period can be considered under the following headings:
a. Early flyers b. Species with two peaks of activity. The effect of light of low intensity,
temperature ...
Ecological and phytochemical studies on the "miswak", salvadora persica l.
(
Qatar University
, 1984 , Article)
The "Miswak", which is produced from the stolons and branches of Salvadora persica is used as a substitute for ordinary tooth brushes. The use of "Miswak" has been recommended by Islam. It is endowed by several characteristics ...
The Superimprimitive Subgroups Of The Alternating Group Of Degree 8
(
Qatar University
, 1984 , Article)
A transitive permutation group G is called superimprimitive if it is imprimitive with non-trivial block systems of imprimitivity of lengths all the non-trivial divisors of the degree of G; The superimprimitivity concepts ...
Sedimentological And Paleo-Environmental Studies On The Eocene Limestones In The Northern Plateau Of Bahariya Oasis, Western Desert, Egypt
(
Qatar University
, 1984 , Article)
Detailed investigation of the three Eocene formations in the Northern Plateau revealed remarkable differences in their biogenic and lithologic characters. Eleven different microfacies associations have been recognized. ...
Pliocene Coralline Algae, South Of Safaga (Red Sea, Egypt)
(
Qatar University
, 1984 , Article)
Coralline algae are highly abundant in the Pliocene succession of the area south of Safaga (Red Sea, Egypt). The articulated corallines (Corallinoideae) are represented here by a single genus, Amphiroa. The crustose coralline ...
On The Behaviour Of The Solutions Of ff …...
(
Qatar University
, 1984 , Article)
The above equation plays an important rote in the geometric theory of functions of a complex variable.
To determine interval estimations for its solutions, an inequality is obtained using the fixed point theorem. Then, ...
Biostratigraphy Of The Subsurface Oligocene Sediments In The North Western Desert, Egypt
(
Qatar University
, 1984 , Article)
This paper deals with the study of planktonic foraminifera, larger foraminifera and ostracoda in the Oligocene sediments in four wells: Abu Tunis No. IX, East Faghur-I, Khalda No. I and North Ghazalat No. I, North Western ...
Approximate Solution For A Problem Of Propagation Of Elastic-Plastic Wave In The Half-Space
(
Qatar University
, 1984 , Article)
In this paper, we consider a half-space occupying an elastic-plastic medium. Treatments were carried out under the assumption of perpendicular load, on boundary which propagates with a constant speed D.
The assumption ...
A New Liquid Membrane Electrode For Selective Determination Of Caffeine
(
Qatar University
, 1984 , Article)
A new liquid membrane electrode for caffeine prepared from a solution of caffeine-picrylsulfonate ion-pair complex in n-octanol is developed. It exhibits Nernstian response in the range of 10'2 to lO^M caffeine with a ...
Water Conditions And Proline Content In Shade And Sun Plants
(
Qatar University
, 1984 , Article)
Different parameters of the water conditions (Water content, water saturation deficit, osmotic pressure of the cell sap and partial osmotic pressure due to sugars), chlorophyll and proline contents were investigated in sun ...