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    Ultrastructural Study Of Type "B" Neurosecretory Cells In The Earthworm Nervous System 

    Al Yousuf, Shoa'a [شعاع السيد اليوسف] ( Qatar University , 1991 , Article)
    Neurosecretory cell types Bi—B5 are widely distributed throughout the cerebral, subesophageal, nerve cord and peripheral ganglia of the oligochaete Aporrectodea caliginosa, Lumbricus terrestris, Eisenia foetida, Octolasion ...
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    Effects Of Chemical Pesticides On The Gravid Females And Stadia Of The Woodlouse, Porcellio Scaber (Latreille) (Isopoda, Oniscidea) 

    Nair, G. Achuthan [انشوتان ناير]; Mohamed, Abdalla I.; Bhuyan, K. C. ( Qatar University , 1991 , Article)
    Studies were made on the mortality rates of the gravid females, and on the survival and growth rates of the stadia of the woodlouse Porcellio scaber (Latreille) exposed for a period of 21 days to sub-lethal concentrations ...
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    Effect Of The Apical Ectodermal Ridge On Mitotic Index In Hind Limb Bud Mesenchyme In Bufo Regularis 

    Abdel Karim, Ahmed E.; Michael, Milad I.عبد الكريم, أحمد السيد; ميخائيل, ميلاد اسحق ( 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). ...
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    Effect Of Lead Nitrate On The Liver Of The Developing Chick Embryos 

    Abu Sinna, G. [جمال ادريس ابو سنة]; Al-Henzab, N.; El-Shabaka, H. ( Qatar University , 1991 , Article)
    The liver of chick embryos treated with 0.03, 0.05 and 0.1 mg lead nitrate/egg showed disorganization of hepatic cords, abnormally enlarged blood sinusoids and extensive cell necrosis. The hepatocytes of lead-treated embryos ...
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    The effect of temperature and relative humidity on survival of unfed hyalomma impeltatum (acarina: ixodidae) 

    Hagras, Ahmed E. E. [احمد الوزير هجرس]; Babiker, A. A.; Khalil, G. M. ( Qatar University , 1991 , Article)
    This work investigates survival of unfed Hyalomma impeltatum in which 8089 larvae, 3946 nymphs, 2058 males and 2304 females held at different combinations of temperature (21, 25, 29 and 34°C) and relative humidity (RH) ...

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      Abdel Karim, Ahmed E. (1) Abu Sinna, G. [جمال ادريس ابو سنة] (1) Al Yousuf, Shoa'a [شعاع السيد اليوسف] (1) Al-Henzab, N. (1) ... View More
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    • Zoology (5)
    • علم الحيوان (5)
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    Publication Date
    • 1991 (5)
    Accessioned Date
      2009 (5)
    Has File(s)
      Yes (5)

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    Qatar University Digital Hub is a digital collection operated and maintained by the Qatar University Library and supported by the ITS department

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