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السجلات المعروضة 51 -- 60 من 72
The Reproducing Capacity of Gamma Irradiated Adults of Trogoderma Versicolor (Creutz)
(
Qatar University
, 1993 , Article)
Male and female, Trogoderma versicolor (Creutz.) were irradiated by gamma radiation as newly emerged adults (12-24 hrs. after emergence). Males required higher doses than females to be sterilized and the reproductive ...
Microscopic Study Of The Rabbit Pancreas After Vagotomy
(
Qatar University
, 1997 , Article)
The microscopic study of the morphological changes in the rabbit pancreas were investigated after vagotomy. Structural changes were observed in the pancreatic acinar cells and in the islets of langerhans two and three weeks ...
Fish diversity in correlation with some environmental factors in the mangal of two protectorate areas, ras muhammed and nabq on the red sea in egypt.
(
Qatar University
, 1997 , Article)
The present investigation is an attempt to study the fish diversity at five sites of the mangrove forests (Mangal) in two famous protectorate areas : Ras Muhammed and Nabq on the Red Sea in Egypt. The present investigation ...
Population Structure And Growth Curve Of Acanthopleura Gemmata (Mollusca: Polyplacophora) In The Northwestern Red Sea
(
Qatar University
, 1996 , Article)
Studies on Acanthopleura gemmata population were carried out in a site located on northwestern coast of the Red Sea called Sharm Elnagha, 40 km south of Hurghada city, Egypt (26° 56' N and 43° 00' E). In these studies, the ...
ECG Abnormalities Induced By Scorpion Venom Administration: The Effect And The Mechanism
(
Qatar University
, 1994 , Article)
Intramuscular administration of scorpion (Leiurus quinquestriatus) lyophilized venom (100, 200 and 400 mg/kg) into rats produced drastic changes in the electrical activity of the cardiac muscle. These abnormalities were ...
Scanning electron microscopy of hymenolepis nana and h. Diminuta from natural infections
(
Qatar University
, 1992 , Article)
The surface ultrastructure of two cestodes: Hymenolepis nana and H. diminuta was studied by scanning electron microscopy. The scolex, suckers, rostellum and strobila are all covered with dense populations of microtriches ...
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 ...
The effect of the insecticide (primicid) On neurosecretory cells of the earthworm aporrectodea caliginosa
(
Qatar University
, 1995 , Article)
The effect of the insecticide "Primicid" on the neurosecretory cells of the cerebral ganglion of the earthworm Aporrectodea caliginosa was studied. The fine changes in the organelles of certain ncurosecrelory cells was ...
Paragorgorhynchus aswanensis n.sp. (acanthocephala: Echinorhychidae): an intestinal parasite of some fishes from aswan high dam lake in upper egypt
(
Qatar University
, 1990 , Article)
Paragorgorhynchus aswanensis n.sp. is described, both by light and scanning electron microscopy, from Lates niloticus,, Clarias lazera, Bagrus bayad, B. docmac, and Tetraodon fahaka, caught from the Aswan High Dam Lake in ...
Changes in some chemical constituents of stored grain and animal feed In two provinces in Saudi Arabia
(
Qatar University
, 1995 , Article)
Changes in total acidity, total carbohydrates, reducing sugars, starch, total protein, ether soluble fraction, sodium, potassium, calcium, magnesium, total phosphorus, ash, dry and wet gluten, crude fibres and specific ...