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Ionic Conductivity and Ionic Jump Distance of Nuclear Detectors Group CR-39 and BM-355
(
Qatar University
, 2000 , Article)
Electric properties of two nuclear detectors (CR-39 and BM-355) have been investigated as a function of temperature differences. The conductivity appears to be ionic and it was increased with the temperature increase for ...
Nitrogen Transformations As Affected By Some Factors at Cultivated Soils In Saudi Arabia
(
Qatar University
, 2000 , Article)
The influence of serial concentration of salts (0.5, 1.0 and 1.5%), application of organic matter (0.5, 1.0 and 1.5% of wheat straw) and varying soil moisture content (50, 70 and 90%) on nitrification in sandy loam soil ...
Genotoxicity and Embryotoxicity of the Insecticide Primicid in Chick Embryo
(
Qatar University
, 2000 , Article)
Growing chick embryos were treated with primicid to examine the cytogenetic and embryotoxic effects of this insecticide. For the cytogenetic assay, eggs were injected through the air chamber with primicid at a concentration ...
Oxidative Addition Reactions of Sn(II) And Pb(II) with Some Hydrazide And Hydrazone
(
Qatar University
, 2000 , Article)
Bivalent tin compounds can be easily transformed to tetravalent compounds by oxidizing agents. The use of ortho-quinones for oxidation of transition metals has been the subject of many publications, but few analogous studies ...
Computer Aids To Analysis Of Semi -Rigid Steel Space Frames
(
Qatar University
, 2000 , Article)
This work describes the recent development of the semi-rigid connection
technique and the application of this method to the analysis of space frame
structure.
To carry out the above method of analysis accurately and ...
Recent Benthic Foraminifera from the Local Water of Qatar, Arabian Gulf
(
Qatar University
, 2000 , Article)
ABSTRACT
In the present study, fifty species of Foraminifera are identified from the bottom sediments of the local Qatari waters on the eastern and northern sides of Qatar Peninsula in the Arabian Gulf. These comprise 7 ...
الرسوب وعلاقته بتحصيل الطلاب : دراسة تحليلية
(
Qatar University
, 2000 , Article)
يعتر قرار الرسوب والنجاح من القضايا التربوية التي لازالت في حلبة النقاش ولم يتم الفصل فيه حتى الآن. وتعتر مشكلة قرار الرسوب ليست وليدة الساعة بل إن عمر هذه المشكلة يزيد عن ثمانين عاما.
وعند الحديث عن الرسوب فإن أول ما ...
نظرية المعرفة في فلسفة الشهيد باقر الصدر
(
Qatar University
, 2000 , Article)
ثورة أبي ركوة ضد الخلافة الفاطمية (395 - 397 هـ ظ 1005 - 1007م)
(
Qatar University
, 2000 , Article)
This research is to difine "Abu-Rakwah" and his revolution against the Fatimid caliphate at the time of "al-Hakim bi-amr-illah '1. The paper portrays his escape from Andalusia and his wandering throughout the Moslem world ...
نمو التفكير الاخلاقي لدى عينة من الذكور السعوديين في من المراهقة والرشد
(
Qatar University
, 2000 , Article)