Now showing items 1-10 of 62
Bacteremia and septicemia in Qatar
( Ministry of Defence And Aviation , 1999 , Article)
Objectives: The aims of the study are to define the pattern of bacteremia and septicemia in Hamad Medical Corporation in relation to the susceptibility of the implicated microbes to various antimicrobial agents. Methods: ...
Guaianolides from Picris radicata
( Elsevier Science Ltd. , 1996 , Article)
The methylene chloride-methanol (1:1) extract of the aerial parts of Picris radicata Forssk afforded two new guaianolides. The structures were established from spectral data.
Vegetation composition of a maritime salt marsh in Qatar in relation to edaphic features
( Blackwell Publishing Ltd , 1990 , Article)
Coverpercentage values for plant species were estimated using the line-intercept method along two belt transects starting at the lower mangrove frontier and ending at the upper height of the salt marsh. Twelve perennial ...
Thermal dimensional stability of isotropic polyoxymethylene
( John Wiley & Sons, Ltd. , 1991 , Article)
A parametric mapping analysis of the effect of various structural and morphological parameters on the thermal dimensional stability of polyoxymethylene is highlighted. The molecular composites model is found to describe ...
Structure-thermal expansivity relation for isotropic polyoxymethylene sheets
( John Wiley & Sons, Ltd. , 1994 , Article)
A detailed parametric mapping analysis of the thermal expansion coefficient for isotropic polyoxymethylene is presented. The molecular composite model has been computerized to investigate the variation of the thermal ...
Photosynthetic acclimation to high temperatures in wheat
( John Wiley & Sons, Ltd. , 1992 , Article)
Growth and photosynthetic performance were assessed for the Finnish wheat Triticum aestivum L. var. APU under a cool (13/10�C day/night) and a warm (30/25�C day/night) regime. Plants exhibited a certain degree of acclimation ...
Metathesis ring opening polymerization of 5,6-dimethylenebicyclo[2.2.1]hept-2-ene
( John Wiley & Sons, Ltd , 1992 , Article)
5,6-Dimethylenebicyclo[2.2.1]hept-2-ene (I) polymerizes in the presence of the two-component ring opening metathesis polymerization (ROMP) initiators WCl6/(CH3)4Sn and MoCl5/(CH3)4Sn. The product polymers were insoluble ...
Inhibitive Effect of Butyltin Trichloride on Dissolution and Localized Corrosion of Aluminium in Sodium Hydroxide and Hydrochloric Acid
( WILEY-VCH Verlag , 1990 , Article)
The dissolution of aluminium in sodium hydroxide and hydrochloric acid in the presence of butyltin trichloride as corrosion inhibitor has been studied by hydrogen evolution and thermometric methods. Experimental findings ...
Glycosides of Heterocycles: A Direct Route to 1-(β-D-Glycopyranosyl)pyridinethione Nucleosides
( WILEY-VCH Verlag , 1994 , Article)
A novel synthesis of 1-(β-d-glycopyranosyl)pyridinethione nucleosides 6 utilizing pyridine-2(1H)-thiones 3 and α-halogeno sugars 4 as starting components is reported.
Flow injection potentiometric determination of harmine and harmaline hallucinogens
( Wiley-VCH Verlag , 1995 , Article)
Flow injection analysis (FIA) systems incorporating potentiometric sensors for harmine and harmaline hallucinogens are described. The sensors are based on the use of harmine and harmaline tetraphenylborate or reineckate ...