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القيادة التعليمية تصور يسبق التطبيق
(
Qatar University
, 1993 , Article)
يتناول البحث بالتحليل ظاهرة القيادة بشكل عام والقيادة التعليمية لمعرفة الخصائص والسمات البشرية المرتبطة بهذه الظاهرة ثم استنباط نتائج عملية للإفادة منها في مجال تطوير الإدارة التعليمية.
وقد تعرض الباحث لمفهوم القيادة وصلة ...
The Reproducing Capacity of Gamma Irradiated Adults of Trogoderma Versicolor (Creutz)
(
Qatar University
, 1993 , Article)
Male and female, Trogoderma versicolor (Creutz.) were irradiated by gamma radiation as newly emerged adults (12-24 hrs. after emergence). Males required higher doses than females to be sterilized and the reproductive ...
Growth and protein content of wheat kernels treated with three Growth regulators
(
Qatar University
, 1993 , Article)
Alar, asulam or kinetin at different doses were sprayed on wheat plants and their effects on growth and protein of the developing kernels were investigated. Grain fresh matter was significantly increased in response to 200 ...
Effect Of Gossypol, Apogossypol And Gossypolone On Fertility Of Male Rats And In Vitro Sperm Motility
(
Qatar University
, 1993 , Article)
The effect of the naturally occurring polyphenolic pigment, gossypol, and some of its metabolites, apogossypol and gossypolone, on the fertility of male rats has been studied in vivo. The normal growth of the rats was ...
Mineralogical and Chemical Properties of El-Fa Youm Clays
(
Qatar University
, 1993 , Article)
El-Batts Demo Area constitutes a part of El-Fayoum province in Egypt, it is dominated by clay formations 17 meters thickness, covered in part by a thin layer of Pleistocene deposits.
XRD studies reveal that smectite is ...
Krein's method for solving the integral equation of the first kind With logarithmic kernel
(
Qatar University
, 1993 , Article)
Consider the Fredholm's integral equation of the first kind with logarithmic kernel K(IXI) = (- In Ixl. The aim of this paper is to establish the equivalence of Krein's method of solving the equation with the following ...
Regenerative abnormalities in hind limbs of bufo regularis induced by repeated amputations: I. Early larval stages
(
Qatar University
, 1993 , Article)
The regenerative response of the hind limbs of early larval stages: 52, 53, 54 and 55 of Bufo regularis was studied following repeated amputations at the ankle level. The pattern of morphogenesis as well as skeletal ...
Effect of level of relative humidity on fungi and germination capacity of paddy (oryza sativa l.) Grains in egypt
(
Qatar University
, 1993 , Article)
The changes in the composition of paddy grain-borne fungi in the germination capacity, and in the moisture content of paddy grains at various levels of relative humidity (r.h.) (~ 0-100%) stored at 20°C for 1, 2, 3 and 4 ...
Seasonal Variations of Acoustic Properties in Ropme Sea Area
(
Qatar University
, 1993 , Article)
Hydrographic data collected in the periods from 1961 to 1988 are used to investigate sound speed distribution in the Regional Organization for Protection of Marine Environment (ROPME) sea area in the Gulf, during four ...
The influence of oxygen, partial vacuum, temperature, relative humidity combined with gamma radiation on the mosquito, Culex pipiens complex l. I. Effect of exposure to temperature and relative humidity alone.
(
Qatar University
, 1993 , Article)
The results revealed that a temperature of 10°C was the most effective temperature on pupal mortality of Culex pipiens complex L. followed by 32°C then 20 and 26°C. There was a gradual increase in pupal mortality with ...