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Now showing items 81-90 of 108
Effect Of Unfed Female Weight On The Biology Of Hyalomma (Hyalomma) Impeltatum Schulze and Schlottke (Acari: Ixodidae)
(
Qatar University
, 1989 , Article)
Unfed female Hyalomma (Hyalomma) impeltatum Schuize and Schlottke in 4 different weight groups of 2.6-5.0, 6.2-10.0, 10.3-14.7 and 15.2-22.3 mg, respectively, were investigated for the effect of unfed female weight (UFW) ...
Some Aspects Of Camouflage In Animals
(
Qatar University
, 1989 , Article)
Camouflage is the principal device by which vulnerable animals escape predation. The attention of potential predators can be avoided by protective resemblance -mimicking an inedible object such as a seed or leaf. Concealment ...
Estimates of Potential Evapotranspiration Over The State of Qatar
(
Qatar University
, 1989 , Article)
Several methods for the estimation of potential evapotranspiration are reported in the literature covering a wide variation in the complexity of calculation and nature of climatic data required. Five of the more commonly ...
Functions Near Of Na-Continuity
(
Qatar University
, 1989 , Article)
In 1986, the concept of Na-continuity was initiated by Chae et al., this leads us to introduce two classes of functions, namely strongly Na-continuity and weakly Na-continuity. We characterize these new types. Several ...
Book Review: Orientalism
(
Qatar University
, 1989 , Book Review)
Interpretation Of Three Dimensional Seismic Data In Delineating The Structural Elements At Ras Budran Oil Field, Gulf Of Suez, Egypt
(
Qatar University
, 1989 , Article)
Structural evaluation in Ras Budran oil field was achieved by using the state of art geophysical technology, represented by the 3-D seismic data. Integrated together with the borehole geological and geophysical data. The ...
Histomorphology Of The Skin Of The Gecko Cyrtodactylus Scaber (Gekkonidae, Reptilia)
(
Qatar University
, 1989 , Article)
The histological structures from different dorsal and ventral regions of the skin of the gecko Cyrtodactylus scaber are described. Qualitative differences in the skin structures are recorded. The correlation between the ...
Constituents of catha edulis (alkaloids, triterpenoids and related substances and saponins)
(
Qatar University
, 1989 , Article)
The study of the alkaloids of khat samples from Egypt and Yemen revealed qualitative and quantitative differences. Cathine and the dimer of cathinone occured in both samples, while norephedine was detected only in Yemen ...
Distribution, Genesis And Thermal Behaviour Of Clay Minerals In The Miocene Argillaceous Rocks In Qatar, Arabian Gulf
(
Qatar University
, 1989 , Article)
XRD and DTA were utilized to investigate quantitatively the clay-mineral composition of the argillaceous rocks in four Miocene stratigraphic sequences located in western and southwestern Qatar. These rocks belong to the ...
Light Microscopic Study On Schistosoma Mansoni Induced Hepatic And Splenic Lesions Following Praziquantel Treatment
(
Qatar University
, 1989 , Article)
Hepatic and splenic lesions were developed in mice of both sexes following their exposure to cercariae of Schistosoma mansoni (70 cercariae / animal). After 12 weeks of infection, the liver showed the formation of typical ...