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Now showing items 401-410 of 451
Calcium Carbonate Content, Some Chemical And Physical Properties Of The Sudan Gezira Soils And Their Implications
(
Qatar University
, 1991 , Article)
Eight soil pcdons representing a range of aridisols, vertisols and recent alluvium were studied for various chemical and physical properties. Generally the soils were clayey except the recent alluvium which was loamy but ...
Mercury Pollution In Abu Kir Bay East Of Alexandria, Egypt
(
Qatar University
, 1992 , Article)
Abu Kir Bay, east of Alexandria, is subjected to substantial pollution from two direct point sources which are Tabia Pumping Station (TPS) and Lake Edku Outlet (LEO). Mercury was speciated into dissolved reactive, dissolved ...
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 ...
On Some Tintinnids (Protozoa : Ciliata)From The Strait Of Hormoz And The United Arab Emirates Waters
(
Qatar University
, 1995 , Article)
An examination of plankton samples collected from the oceanic waters of the Strait of Hormoz and the UAE inshore and offshore waters revealed the presence of a diverse community of planktonic Tintinnida (Protozoa). 38 ...
Synthesis And Spectroscopic Studies On Some Ruthenium(II) Complexes
(
Qatar University
, 1994 , Article)
The salt [RuCl2(CO)2ln has proved very useful precursor for the syntheses of a variety of organometallic complexes of transition metals. The compounds of dichlorodicarbonylruthenium(II) of the formula [RuCl2(CO)22L] or ...
Regenerative abnormalities in hind limbs of bufo regularis induced by repeated amputations: I. Early larval stages
(
Qatar University
, 1993 , Article)
The regenerative response of the hind limbs of early larval stages: 52, 53, 54 and 55 of Bufo regularis was studied following repeated amputations at the ankle level. The pattern of morphogenesis as well as skeletal ...
Toxic Effect Of Lannate On Cellular Defence System In Erythrocyte Of Rat
(
Qatar University
, 1996 , Article)
Lannate 1 - methomyl was incubated with erythrocytes of rats at different concentrations. It has been observed that there was a decrease in the activities of superoxide dismutase and glutathione reductase after 1/2 and 16 ...
Mineralogy and Genesis of Heavy Minerals in Coastal Dune Sands, South Eastern Qatar
(
Qatar University
, 1999 , Article)
Large amounts of aeolian sand occur in the southeastern coastal zone of Qatar Peninsula as sand dunes accumulated in a vast sand field locally called " Niqyan Qatar ". The present work, carried out on a sand dune belt of ...
Petrochemical Investigation On El Ehena Pluton, Western Al-Quwayiyah Region, Saudi Arabia
(
Qatar University
, 1991 , Article)
The El Ehena area represents a small circular granite intrusion intruded in a metasedimentary sequence. The rocks are coarse grained with hypidomorphic texture and consist mainly of quartz, K-feldspar mostly perthitic and ...
Mineral Content Of Soil And Wild Plants From Saudi Arabia
(
Qatar University
, 1996 , Article)
Soil and wild plant samples were collected from different localities from the industrial Yanbu city, Saudi Arabia, and analyzed for their mineral content. Soil samples from the tested localities differed greatly and contained ...