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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. ...
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 ...
Does Egypt Represent an Ecological Limit to Desiccation Tolerant Plants?
(
Qatar University
, 2006 , Article)
A search of arid areas adjacent to the Nile in Egypt revealed a notable lack of desiccation tolerant vascular plants on ecological sites on which they would be abundant in Kenya and further south in Africa. Relative water ...
Adsorptive Properties of a Desert Salsola Vermiculate Species from Synthetic Aqueous Solutions
(
Qatar University
, 2006 , Article)
Pollution is becoming a major environmental problem and the current trend is to use available biomass to remove toxic substances from aqueous solutions. The preliminatry adsorption results on a natural Salsola Vermiculata ...
Congenital Anomalies in Down Syndrome Among Qatari Population
(
Qatar University
, 2006 , Article)
Down Syndrome (DS) is the major cause of mental retardation and congenital heart disease affecting the welfare of over 300,000 individuals and their families in USA. The aim of the study is to see which are the most common ...
The Role of Improper Use of Artificial Insemination on Infertility and Abortion in Cows in Basrah Province, Iraq: Microbiological Study
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Qatar University
, 2006 , Article)
A prospective study was performed to demonstrate the infectious causes and their mode of transmission in cases of infertility and abortion in cows. There were 434 artificially inseminated cows, of which 155 (35.7%) did not ...
Changes in Soluble Sugars and Proline in Seedlings of A local Wheat Cultivar (Doha) Due to the Salt Stress and Temperature
(
Qatar University
, 2006 , Article)
Germination of grains, and changes in the soluble sugars and proline due to salt stress under three temperatures in the germinating grains, of the local wheat cultivar (Doha) were studied. This cultivar proved resistant ...
A novel multilevel carrier-based PWM-control method for GTO inverter in low index modulation region
(
IEEE
, 2006 , Article)
Gate turn offs (GTOs) have an inherent minimum ON-OFF time, which is needed for their safe operation. For GTO-based three-level or neutral-point-clamped (NPC) inverters, this minimum ON-OFF pulsewidth limitation results ...
Student satisfaction with an educational administration preparation program: A comparative perspective
(
Emerald Group Publishing Limited
, 2006 , Article)
Abstract: Purpose – The purpose of this research is to examine the perceptions of graduates from an educational administration program in terms of its effectiveness and impact on their lives and careers.
Design/metho ...