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السجلات المعروضة 171 -- 180 من 205
Effects of gamma radiation on the activity of the, mosquito culex pipiens L. : I. Effects on the attraction of the mosquito to light, colours and host
(
Qatar University
, 1988 , Article)
The present work was carried out to investigate the effects of gamma radiation at three doses: 40, 80 and 120 Gray. On the response of the adult mosquito Culex pipieas complex when irradiated in the larval, pupal or adult ...
The Complexation of Lanthanides by Azo-B-Diketones Stability Constants
(
Qatar University
, 1982 , Article)
The stability constants of the complexes between the trivalent lanthanide series of cations and series of azo-B-diketone ligands are reported. The measurements were conducted at 30°C and zero ionic strength (free KN03), ...
Interpretation of Gravity Anomalies Due to Lens-Shaped Structures
(
Qatar University
, 1982 , Article)
One of the interesting exploration problems in hydrogcology is finding subsurface geological lens-shaped structures. This paper deals with the interpretation of such structures using their gravity anomalies. A master curve ...
Primary Productivity of Lake Manzalah, Egypt, using C14 technique
(
Qatar University
, 1981 , Article)
The hydrographical and chemical conditions of Lake Manzalah, Egypt, are influenced by the surging in of saline water from the Mediterranean sea and are by no means stable. The average of the parameters studied during the ...
Helminth parasites of fishes from the arabian gulf: 4. On allacanthochasmus lutjani n.sp. And metadena leilae nagaty, 1957 (digenea: cryptogonimidae)
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Qatar University
, 1988 , Article)
Allacanthochasmus lutjani n.sp. is described from Lutjanus fulviflamma caught from Qatari waters in the Arabian Gulf. It differs from other species of the genus, mainly by the shape and position of the ovary, presence of ...
Air-Borne Fungi Of Wheat Fields In Egypt
(
Qatar University
, 1983 , Article)
The air borne fungi of wheat fields in El-Minya Governorate were studied during the periods January-May 1977 and December 1977-May 1978 using the plating catch method on 1% glucose and 50% sucrose-Czapek's agar. Fifty-two ...
A Simple Diagram For Gravity Interpretation By Gradients For A Lateral Varying Formation
(
Qatar University
, 1984 , Article)
A simple diagram is constructed for the interpretation of the gravity anomaly arising from a formation of linear density variation. The diagram can be easily used if the horizontal gradient is also known. With the help of ...
Comparative Histopathological Studies On The Effects Of Ionizing X-Ray Irradiation On Normal Liver And Hepatoma
(
Qatar University
, 1984 , Article)
Normal mice exposed to X-rays showed distinct external symptoms and died mostly on the 13th or 14th day after irradiation. Pathological symptoms were more exaggerated in mice diseased with hepatoma and subjected to the ...
Geomagnetic Trend Analysis In The Fayum District, Western Desert, Egypt
(
Qatar University
, 1984 , Article)
The present paper contains brief results of the trend analysis of the aeromagnetic survey in the Fayum District, Western Desert, Egypt. The trend analysis was the constructed magnetic maps which included the total magnetic ...
Petrographic Studies of the Alamein Dolomite (Lower Cretaceous) in El-Razzak Oil Field, Western Desert, Egypt
(
Qatar University
, 1982 , Article)
The origin and environment of deposition of the Alamein Dolomite in the El-Razzak Oil Field have been investigated by means of petrographic, chemical and X-ray analysis.
The studied rocks are composed of dolomite with ...