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Now showing items 21-30 of 114
Diversity, Habitats and Seasonal Distribution of Fish in Three Protectorates of Southern Sinai on the Red Sea, Egypt
(
Qatar University
, 2000 , Article)
The present investigation is an attempt to study the diversity, habitats and seasonal distribution offish of inshore water at thirteen sites of the three Protectorates (Ras Muhammed, Nabq and Abou Galoum) of Southern Sinai ...
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 ...
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. ...
Concentration of Some Heavy Metals in Short Cores in the Nearshore Sediments of Alexandria , Egypt
(
Qatar University
, 2006 , Article)
The Western Harbor, Eastern Harbor and Abu Qir Bay are three sites located along the Alexandria coast. These sites are characterized by extensive maritime and industrial activities. To investigate the penetration of heavy ...
A Random Binary Trees Generation Method
(
Qatar University
, 2000 , Article)
There are two widely used random distributions on binary trees, namely the binary search tree distribution and the uniform distribution. By analyzing the performance of algorithms that manipulate binary trees generated at ...
Phosphate Solubilization in Vitro By Some Soil Yeasts
(
Qatar University
, 2005 , Article)
Soil yeasts including, Candida tropicalis, Geotrichum capitatum, Geotrichum candidum, Rhodotorula minuta and Rhodotorula rubra were isolated from soils of Saudi Arabia. The ability of these soil yeasts to solubilize insoluble ...
Treptodemus Latus and chauhnotrema spiniacetabulum (tirematoda: digenea); Hemirhamphidae, parasites of the fish, hemirhamphus marginatus from Qatari waters
(
Qatar University
, 2000 , Article)
The fish Hemiramphus marginatus recently examined from Qatari waters was found to be infected with two species of degenetic trematodes: Treptodemus latus Manter, 1961 and Chauhanotrema spiniacetabulum Nahhas ans Sey, 1998. ...
Strong and Weak n-Homogeneous Spaces
(
Qatar University
, 2004 , Article)
In this paper we introduce new types of n-homogeneity, we call them n-homogeneous of type 2 and type 3, denoted by nH2, nH3 respectively. We show that every 3H3-space is bihomogeneous space. Also, every finite nH3-space ...
On the Classical Multicolor Ramsey Number R(3,3,3)
(
Qatar University
, 2004 , Article)
In this paper, we are interested in the problem of evaluation of the classical multicolor Ramsey number i?(3,3,3). We first convert it successfully into a system of clauses of 3-literals each, i.e., a 3-SAT instance. We ...
Regeneration of Transformed Forage Legume Plants by Agrobacterium rhizogenes R1601
(
Qatar University
, 2003 , Article)
Transformed forage legume plants (alfalfa & clover) by genetic engineering bacteria Agrobacterium rhizogenes R1601,were regenerated directly from seedling plants after inoculating the wounded site formed by cutting the ...