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إتجاهات الطلاب المعلمين بجامعة قطر نحو الجغرافيا وأتر التخصص الأكاديميي والجنس والمستوى الدراسي على هذه اتجاهات
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Qatar University
, 1994 , Article)
Edaphic Gradients And Species Attributes Influencing Plant Distribution In Littoral Salt Marshes Of Qatar
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Qatar University
, 1994 , Article)
Edaphic gradients of moisture and salinity are critical environmental stresses that seriously influence littoral salt marsh flora, and determine the zonation of coastal vegetation. Shoreline communities subjected to severe ...
Population biology of sparid fishes in qatari waters 3. Reproductive cycle and fecundity of black-banded Seabream, mylio bifasciatus (forsskal)
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Qatar University
, 1994 , Article)
The reproductive cycle, gonads maturation, gonado-somatic indices (GSI) and fecundity of black-banded seabream Mylio bifasciatus from the Arabian Gulf waters off Qatar were investigated. Bi-weekly samples representing all ...
Pan African Basement Of Bir Safsaf Area East Sahara African Craton
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Qatar University
, 1994 , Article)
Bir Safsaf area occurs at the extreme southern part of the Western Desert of Egypt. It is covered by the Pan African Basement represented by the old continental gneisses and migmatites comprising granitic, granodioritic ...
An early marker of monoclonal light chain protein In bladder cancer
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Qatar University
, 1994 , Article)
Bladder cancer complicating schistosomiasis is a major cause of cancer mortality in Egypt. It affects farmers who suffer from repeated and severe chronic schistosomal cystitis. The late presentation of this disease is ...
Measurements Of Radon Permeability Through Some Membranes
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Qatar University
, 1994 , Article)
The diffusion of 222Rn through different types of membranes has been studied by an equilibrium method using a Si surface barrier a-detector with a resolution of 14 keV FWHM for ^'Am. The permeability constant for Aluminized ...
Studies on some aspects of antiviral activity. 1-influence of propolis on Newcastle disease virus
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Qatar University
, 1994 , Article)
The effect of popolis on different-Newcastle disease virus (NDV) vaccinal strains as well as virulent virus were studied. It was clear that the addition of propolis to NDV induced a significant reduction of infectivity ...
Synthesis And Spectroscopic Studies On Some Ruthenium(II) Complexes
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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 ...
Comparison of mechanical shaking, ultrasonication and Homogenization as techniques used in removing attached Bacteria and their effects on the associated protozoa
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Qatar University
, 1994 , Article)
During studying of Protozoa in the slow sand filter beds in Ashford Common Water Treatment Work (London, U.K.), it was found necessary to study the interstitial and attached bacterial populations involved with sand particles, ...
Constituents of plants growing in Qatar xxiv phytochemical investigation of salvia aegyptiaca L.
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Qatar University
, 1994 , Article)
The study of the flavonoids revealed the isolation and identification of luteolin, luteolin 7-O- glucoside, apigenin and apigenin 7-0 glucoside; their identity was proved by m.p., TLC, UV, IR and MS. Moreover, a coumarin ...