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Comparison of mechanical shaking, ultrasonication and Homogenization as techniques used in removing attached Bacteria and their effects on the associated protozoa
(
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, ...
Photoperiod and salinity effects on survival and some blood parameters in female Bufo regularis
(
Qatar University
, 1986 , Article)
This study, investigates the effect of different salinities injected (30, 70 and 100 % sea water) and photoperiods (L:D/8:16,L:D/12:12 and L: D / 16 : 8 ) on female Bufo regularis (1) survival rate, (2 ) oxygen and carbon ...
Vitamin - a and limb regeneration in stages of the egyptian toad, bufo regularis Reuss-histological study
(
Qatar University
, 1995 , Article)
The histogenesis of regenerated limbs, of both control and treated /larvae/ with 30 I.U./ml of retinol palmitate for 3 days, was studied in two larval stages (viz. stages 53 & 54) of the anuran amphibian, Bufo regularis ...
Insect Pests Attacking Vegetable Crops in the State of Qatar (Abstract)
(
Qatar University
, 1982 , Article)
The area cultivated with vegetable crops in the State of Qatar reached, during 1979 and 1980, a percentage of about 42.9 % of the total cultivated (or suitable to be cultivated) area. Vegetable crops selected for collecting ...
Effect of some Vegetable Plant Hosts on the Biological Responses of Brevicoryne Brassicae (L) and Aphis Gossypii (Glover).
(
Qatar University
, 1982 , Article)
The influences of these different vegetable plant hosts on the biological response of Brevicoryne brassicae (L) and Aphis gossypii (Glover) were studied.
The results obtained for B. brassicae (L) indicated that the lowest ...
Blood Gases of some Skink Lizards
(
Qatar University
, 1982 , Article)
(1) Po2 and Pco2 of arterial and venous blood are studied in three skink lizards:
the bean skink, Mabui quinquetaeniata, inhabiting the cultivated areas, and
the two burrowing desert lizards; the ocellated skink, Chalcides ...
Effect Of Hydrocortisone On The Skin Of The Developing Chick Embryo
(
Qatar University
, 1986 , Article)
Hydrocortisone treatment of chick embryos caused acceleration of epidermis thickening and keratinization, decrease in dermal cell number and increase of dermal collagenous fibres. The hormone also caused a marked increase ...
Prenatal Development of the Guinea Pig Kidney Quantitative And Qualitative Morphology
(
Qatar University
, 1993 , Article)
The normal prenatal development of the guinea pig kidney was investigated utilizing quantitative and qualitative histologic methods and microdissection technique during the last of the gestation period (day 46 to day 66). ...
Helminth parasites of fishes from the arabian gulf: 4. On allacanthochasmus lutjani n.sp. And metadena leilae nagaty, 1957 (digenea: cryptogonimidae)
(
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 ...
Renal Structural And Physiological Alterations Subsequent To Unilateral Ureteral Obstruction
(
Qatar University
, 1992 , Article)
Complete obstruction of the right ureter of male rabbits for eight weeks resulted in filling of the obstructed kidney with clear urine, no precipitation or stone formation. The calyces and pelvis were distinctly dilated ...