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Now showing items 141-150 of 156
Ecophysiology Of Desert Animals
(
Qatar University
, 1995 , Article)
The principal environmental problems that confront
both plants and animals in the desert are water shortage and
flooding, thermal extremes, and the absence of cover. Adaptational
responses to these include cryptobiosis, ...
Plant diversity, dispersion, community similarity and vegetation description in united arab emirates. I. North western area
(
Qatar University
, 1995 , Article)
Papers presented at The gulf symposium on Environmental biology, University of Qatar, 7-9 May 1994
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Plant population patterns in six natural communities (A-F) in the northern part of the UAE were studied. The ...
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 ...
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 ...
Threshold Modelling Of Ship's Dynamics
(
Qatar University
, 1995 , Article)
In this paper we consider an application of a system called threshold system in the field of marine engineering. Properties of this system are discussed and the idea of the impulse response function of threshold system is ...
Mineralogical And Geochemical Evaluation Of Upper Cretaceous Black Shales, Safaga District, Egypt.
(
Qatar University
, 1995 , Article)
Lithologic and compositional properties of black shale and pyrite from the Upper Cretaceous phosphorite/black shale deposits (Duwi Formation) of Eastern Desert of Egypt indicate similarity in mineralogy, geochemical ...
Ecological Notes On The Floristic Composition And Endemic Species Of Saint Catherine Mountains, South Sinai, Egypt
(
Qatar University
, 1995 , Article)
The present study is aimed at (1) giving complete list of all plant speciec growing in Saint Catherine mountains, (2) studying the relationship between species number and the amount of precipitation at the time of study ...
Application of discriminant score /∆ log r method for prediction of Organic richness at negelah well, coastal Mediterranean zone, western desert Egypt
(
Qatar University
, 1995 , Article)
Both sonic, resistivity and temperature information are used in an integrated manner in order to identify the organic richness of the shally intervals allover the Albian - Aptian rock sequence in Negelah well located at ...
The Availability Of Iron In Soil And Plants Treated With Organic And Inorganic Fertilizers In The Jordan Valley
(
Qatar University
, 1995 , Article)
This paper deals with the rcults of a study carried out on "Phoseolus vulgaris - Wed" as an indicator of chlorosis. The study took place between July 1990 and July 1992, and for two crop seasons each year. Six kinds of ...
Measurement Of Thermal Conductivity Of Thermally Low-Conducting Materials
(
Qatar University
, 1995 , Article)
The thermal conductivity of a building material is a necessary parameter in estimating the cooling load of a building. Cooling load estimates are quite important in selecting building materials especially in hot-climate ...