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Now showing items 81-90 of 114
Effect Of The Apical Ectodermal Ridge On Mitotic Index In Hind Limb Bud Mesenchyme In Bufo Regularis
(
Qatar University
, 1991 , Article)
The apical ectodermal ridge (AER) was formed at stage 51 of Bufo regularis, it persisted at stage 52 (limb bud acquiring paddle-shaped outline), then it disappeared by stage 53 (first indication of fourth and fifth toes). ...
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 ...
Histological And Histochemical Studies On The Decidua And The Uterine Glands During Early Pregnancy In The Rat (Rattus rattus)
(
Qatar University
, 1986 , Article)
Histological and histochemical studies were carried out on the decidua and uterine glands in the uteri of pregnant rats 'Rattusrattus' between 129 hours post.-coitum (p.c) and day nine of pregnancy. Decidualization was ...
Regeneration from different levels along the tail of the geckonid lizard, Bunopus tuberculatus
(
Qatar University
, 1994 , Article)
Study of the influence or amputation level on regenerate length, elongation rate and mitotic index of the tail of the geckonid lizard, Bunopus tuberculatus revealed that the tails amputated such that three-fourth, or ...
Gonadal Development Of Lead Intoxicated Rat Embryos
(
Qatar University
, 1987 , Article)
Pregnant rats injected with 60ju,g lead nitrate/gm body weight on day 8 of gestation showed a significant fetal resorption and reduced size of gonads on day 13.5 gestation. Incidence of fetal death and fetal resorption ...
Regeneration of the vagus nerve after highly selective vagotomy, an autoradiographic study in the ferret stomach .
(
Qatar University
, 1995 , Article)
This study investigates the regeneration of the vagal nerve fibres after highly selective vagotomy in the ferret stomach by using the autoradiographic technique.
Autoradiographic examination of the body of the stomach in ...
Effect of the insecticide sumicidin on the biology and survival of the american cockroach nymph periplaneta americana l. (blattidae, dictyoptera).
(
Qatar University
, 1995 , Article)
This study was conducted under laboratory conditions to evaluate the effect of sumicidin (a pyrethriod insecticide) on the heart rates, convulsion and mortality of the american coackroach nymph Periplaneta americana L., a ...
Abundance Of Insects And Mites Infesting Stored Grain And Animal Feed In Riyadh And Dammam Provinces, Saudi Arabia
(
Qatar University
, 1994 , Article)
Insects and mites infesting wheat, maize and wheat bran, stored in plants at Riyadh and Dammam, Saudi Arabia, were scanned in 2 seasons, 1987 and 1988. Grains from the local markets and dust from both provinces were also ...
Scanning electron microscopy on adults of Schistosoma mansoni treated in-vivo with praziquantel and RO-15 (5458).
(
Qatar University
, 1997 , Article)
In view of the known relationship between changes in the tegumental surface of schistosomes and the potency of antischistosomal drugs,
the present work is done to study the effect of two oral drugs, namely Praziquantel ...
Acid-Base Status Of Blood Of Varanus Griseus And Uromastyx Aegyptius
(
Qatar University
, 1984 , Article)
1) A comparative study was carried out on the acid-base status of blood collected from five main blood vessels of two desert lizards, the monitor, Varanus griseus, and the dabb, Uromastyx aegyptius.
2) Blood of the monitor ...