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Gamma Irradiation of 4th Instar Larva of Angoumois Grain Moth and Effects on Parent and Their Generations
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Qatar University
, 2006 , Article)
Late fourth stage larvae of Angomous grain moth, Sitotroga cerealella (Olivier) were gamma irradiated with doses 0 ( control), 25, 50 75, 100, 125 and 150 Gy. The moths originated from larvae irradiated with 150 Gy became ...
Comparative Study of 11 Honey Samples Sold in Riyadh Saudi Arabia
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Qatar University
, 2006 , Article)
11 honey various samples commercially available in Saudi Arabia, were subjected to chemical, toxicological and bacteriological tests. The samples were checked for As and CN, presence of pollens, and for bacteria contamination. ...
Reproducing Formula and Algorithm of a Familv of Biorthonormal Wavelets
(
Qatar University
, 2005 , Article)
In this paper we present a family of biorthonormal wavelets generated by a MRA orthonormal wavelet, which possesses two arbitrary parameters. Then we discuss new expressions of reproducing kernel as well as the corresponding ...
Halophytes and Soil Salinity in Qatar
(
Qatar University
, 2002 , Article)
Saline soils cover approximately 6% of the land in Qatar. Halophytes are common along the coastal areas and inland salt flats and wetlands, where saline water is available in their natural habitats permanently or periodically. ...
Separation of Two Forms of Extracellular p-glucosidase From a Thermotolerant Aspergillus niveus
(
Qatar University
, 2003 , Article)
Two forms of P-glucosidase ((3-D-glucoside glucohydrolase, EC 3.2.1.21) from the culture filtrate of Aspergillus niveus were separated and partially purified by gel chromatography on Sephadex G-100 column. The two forms ...
Feeding Behaviour and Food Selection of Dhab Uromastyx microlepis From Wild Vegetation
(
Qatar University
, 2001 , Article)
The present study deals with the food selection and feeding behaviour of Uromastyx microlepis 'dhab' spiny tailed lizard during a period of one complete year inhabiting AL-Gassim desert area. Climatically the area can be ...
Nitrogen Transformations as affected by some factors at cultivated soils in Saudi Arabia
(
Qatar University
, 2001 , 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 strat) and varying soil moisture content 50, 70 and 90%) on nitrification in sandy loam soil was ...
p-cds/n-Si Anisotype Heterojunction solar cells wih Efficiency of 6.4%
(
Qatar University
, 2005 , Article)
In the present paper, p-CdS/n-Si heterojunction solar cells are prepared for the first time by the spray pyrolysis technique. Using such low-cost method, cells with 6.4'/o AM1 conversion efficiency ina O.ZZ fill factor ...
On Stability in Multiobjective Integer Linear Programming: A Stochastic Approach
(
Qatar University
, 2006 , Article)
In this paper we consider a multiobjective integer linear stochastic programming problem individual chance constraints. We assume that there is randomness in the right-hand sides of the constraints only and that the random ...
Effect of Different Doses of Inorganic Fertilizer on Water Quality, Primary Productivity and Production of Nile Tilapia (Oreochromis niloticus) in Earthen Ponds
(
Qatar University
, 2002 , Article)
Earthen ponds (surface area 155 m2 each) were used to study the effect of different doses of inorganic fertilizer on water quality and fish production. Each pond was stocked with 150 fish of Nile tilapia; Oreochromis ...