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Comparison of antibiotic susceptibilities of four species of coagulase-negative staphylococci isolated rom normal skin and acne Lesions: a statistical approach
(
Qatar University
, 1996 , Article)
Ten strains of each of four species of coagulase negative staphylococci: S. epidermidis, S. hominis, S. capitis, and S. cohnii isolated from both acne lesion and normal skin (total 80 strains) were tested for their antibiotic ...
Iodometric microdetermination of phosphorus in organic compounds by use of An amplification reaction
(
Qatar University
, 1994 , Article)
A high chemical amplification method is described for the iodometric microdetermination of phosphorus in organic compounds. This method depends on combustion by the oxygen flask, absorption of the combustion products in ...
A Mathematical Model Of The Dynamics Of Schistosomiasis
(
Qatar University
, 1996 , Article)
In this work the authors develop a mathematical model for the dynamics of a major helminth parasite of man, schistosomiasis. The model is a system of coupled non-linear equations. Numerical experimentations with the model ...
SOIL FUNGI ARE AN ACTIVE PARTNER OF OUR ECOSYSTEM. THEIR BIODIVERSITY AND ACTIVITIES SHOULD BE APPRECIATED*
(
Qatar University
, 1995 , Article)
Soil fungi play an active role in the maintenance and functioning of ecosystems around man. This paper is an appreciation of their bio¬diversity and activities at the global and Arab world levels.
Microorganisms merit ...
y - Irradiation Effect On The Ferroelastic High Temperature Phase In LiKSO4 Crystals
(
Qatar University
, 1992 , Article)
The effect of •y -irradiation on the thermodynamic parameters of LiKSC>4 single crystals, in the high temperature range 300-1000 K, is investigated. The results show that T,; as well as Cp decrease with dose rate. However, ...
X-Ray And Electron Microprobe Analysis Of Some Plagioclases From The Jabal Abu Safiyah Intrusion
(
Qatar University
, 1992 , Article)
The Jabal Abu Safiyah is a layered intrusion, which was emplaced within volcanosedimentary rocks. It extends in an arc for about 15 km and displays clear layering. The lower zone plagioclases were studied by electron ...
Factors Governing Mosquito Susceptibility To Bacillus Sphaericus Strains
(
Qatar University
, 1992 , Article)
Three lyophilized strains of Bacillus sphaericus (1593-4, 2297 and SSII) were tested against four different mosquito species. Culex pipiens larvae demonstrated the highest level of susceptibility towards the 3 B. sphaericus ...
Bayes Estimation of the Parameter of Burr Type II Distribution in Case of Type II Censoring
(
Qatar University
, 1997 , Article)
Suppose that Xj, X2, ..., Xn is a random sample of failure times from a Burr type II (B2) distribution
with parameter 9. Let x = (xj, x2, , xr) with xj < x2 S x3 < < xr be the observed failure censored
sample of the first ...
Geologic setting of the St. Catherine basement rocks, Sinai, Egypt
(
Qatar University
, 1993 , Article)
St. Catherine area, some 900 km in size, is dominated by basement rocks Encompassing old continental gneisses, metasediments, greenstone belt, calc-alkaline granites (G-II-granites), rift-related volcanics (RV), and ...
Phyllosphere and phylloplane fungi of some herbal plants belonging to Labiatae, Solanaceae and Umbelliferae in Egypt
(
Qatar University
, 1997 , Article)
Survey on the occurrence of phyllosphere and phylloplane fungi on leaves surface of 15 different kinds of fresh herbs (three samples of each kind) belonging to three plant families (five kinds belonging to each of Labiatae, ...