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Now showing items 151-160 of 1388
( أن ) المخففة في القرآن الكريم
(
Qatar University
, 1999 , Article)
يتطلع البحث إلى دراسة " أن المخففة من الثقيلة " بهدف الوقوف على بعض المسائل النحوية، واستعراض آراء النحاة حولها، ومعالجتها من خلال النصوص القرآنية، والتي تعد خير الشواهد وأفضلها لأي مسألة نحوية دار حولها جدل النحاة واختلافهم ...
Nature Of The Aflatoxin B, - Induced Inhibition Of Photosynthesis In Chlorella Fusca (Chlorococcales, Chlorophyta)
(
Qatar University
, 1994 , Article)
Treatment with Aflatoxin E^ (AFBi) resulted in inhibition of photosynthetic oxygen evolution in Chlorella fusca Shih.et Krauss. Treatments also induced a marked reduction of both chlorophyll and carotenoid contents. ...
Separation and preconcentration of malathion and azamethiphos by Unloaded polyurethane foams
(
Qatar University
, 1994 , Article)
The feasibility of using unloaded polyether type polyurethahe foams for the extraction and separation of malathion and azamethiphos in batch and column operations has been examined. The effects of pH, ionic strength, shaking ...
Preliminary Study on Coral Reef and Its Associated Biota in Qatari Waters, Arabian Gulf
(
Qatar University
, 1999 , Article)
Coral reef grounds and their associated biota m Qatari waters were investigated by Scuba diving. Four selected reef-sites were studied. Coral was presented by 17 species. Descriptive notes of each site and an initial list ...
Some Adsorption Characteristics of Sodium decyl and dodecyl Sulphates on the surface of Emulsifier-free Polymer Latex Particles
(
Qatar University
, 1997 , Article)
The adsorption characteristics of sodium decyl and dodecyl sulphates on polystyrene latex particles have been investigated.
The study involves the addition of known amounts of the surfactant to an emulsifier-free latex, ...
Forecasting Of The Storm Surge In Winter At Alexandria (Egypt)
(
Qatar University
, 1992 , Article)
Since storms frequently occur in the winter season, at Alexandria, SE of the Mediterranean Sea. storm surges often affect this area. In this paper, we attempt to forecast the storm surge heights in the commercial Western ...
Harmful Effects Of Sea Water Administration On Kidney Structure And Function
(
Qatar University
, 1992 , Article)
Ratlus rattus received oral int'usiuii „; 3 ml of sea water for 5 consecutive days. Certain blood parameters and kidney structure and function were studied 24 hours and one week later. Hematocrit. plasma osmolality, sodium, ...
Global And Ultravoilet Radiation Over Kuwait
(
Qatar University
, 1999 , Article)
The data of six spectral bands of solar radiation over Kuwait were measured locally, during the period of time starting May 1, 1995 until February 5,1998.
Near ultraviolet spectral band (315-380) nm, shows very week ...
Studies On Catch Rates Of Bottom Trawlers In Qatar Waters, Arabian Gulf
(
Qatar University
, 1990 , Article)
Data pertaining to catch, effort, time, space, landing, commercial value, by-catch and some environmental parameters covering the period from 1983 to 1988 were used in this regard. The results conformed that; the CPUE ...
Transmetalation Mechanisms
(
Qatar University
, 1993 , Article)
Transmetalation is the stoichiometric replacement of the metals in a polymetallic target T with different metals from reagents called transmetalators, TM. Transmetalation at useful rates under mild conditions is an excellent ...