Search
Now showing items 11-20 of 50
Gravity investigation for detecting The subsurface basement topography Of the western part of behera Governorate, North Egypt
(
Qatar University
, 1999 , Article)
One of the most effective tools for exploration of the subsurface basement topography is the gravity method. The Bouguer gravity map of the western part of Behera Govemorate west of the Nile Delta of Egypt has been analyzed ...
Inclusion Relation between Two Absolute Summability Methods
(
Qatar University
, 1999 , Article)
In the present paper, the problem of inclusion of the absolute method of summability \N,q with that of \N,r has been considered. Nesessary and suffiecient condition for which \N,q I C_ N,r I is established, and non-trivial ...
Mangrove As A Bioindicator For Environmental Pollution In The Coastal Marine Environments-Review
(
Qatar University
, 1999 , Article)
Mangrove stand components have been used widely as bioindicators for different types of environmental pollution including heavy metals, organic pollutants and hydrocarbons as as well as in the detection of ozone depletion ...
Geological interpretation of gravity data On a part at the western region of the High Dam Lake, South Egypt
(
Qatar University
, 1999 , Article)
The structural setting of the area was determined using the horizontal gradient of the gravitational field and the statistical analysis of its maximum trends. The gravitational field was resolved into its two components; ...
Partial characterization Of an alkalophilic extracellular Crude pectinases from a bacillus Polymyxa strain
(
Qatar University
, 1999 , Article)
A mesophilic spore forming isolate from the soil of Um-Qais region, which could produce extracellular pectinases was tentatively identified as Bacillus polymyxa. This bacterium grew best at 37°C and pH 7.0 and was able to ...
An Algorithm for the Consturction of Admissible Tests of the Weibull Distrbution
(
Qatar University
, 1999 , Article)
The method of H. Al-Rawwash and J. Marden [2] is used here for the construction of an admissible test which dominates a given inadmissible one for testing hyupothesis about the Weibull distribution. The algorithm and its ...
Sponges in Qatari waters A new source of marine natural products for biological applications
(
Qatar University
, 1999 , Article)
Sponges are the most primitive multicellular organisms belonging to Animalia kingdom. They lack symetry and do not have differentiated tissues or organs. However, as a consequence of this primitive organization it is very ...
Adenylate Energy Charge As A Tool For Evaluating Sub-Lethal Toxicity
(
Qatar University
, 1999 , Article)
Adenylate energy charge (AEC) is directly related to the cellular concentrations of the three adenylates nucleotides ATP, ADP and AMP. This biochemical index reaches high values (0.9) under optimal conditions but drops ...
The Mineralogy and Chemistry of Urinary Stones from the United Arab Emirates
(
Qatar University
, 1999 , Article)
The purpose of this study is to characterize urinary stones from the United Arab Emirates using mineralogical techniques and compare it with stones in nature. Twenty six urinary calculi were subjected to chemical analysis, ...
Records of Marine Interstitial Hymenostomatid Ciliates from the Jubail Marine Wildlife Sanctuary, Saudi Arabia
(
Qatar University
, 1999 , Article)
Sediment samples were collected at low tide from various localities of Jubail Marine Wildlife Sanctuary in the Arabian Gulf during 1996-1997 for the study of the marine interstitial ciliate fauna of the Sanctuary. Eleven ...