Претраживање
Приказ резултата 11-20 од 86
Stereoselective synthesis of (-)-cytoxazone and (+)-epi-cytoxazone
(Oxford : Pergamon-Elsevier Science Ltd, 2004)
Optically pure (-)-cytoxazone was synthesized, starting from methyl p-methoxycinnamate, in six steps and in 31%, overall yield. The required anti-aminoalcohol configuration was established by combining Sharpless asymmetric ...
Effect of MnSOD (E. coli) on the relaxation caused by sodium nitroprusside on isolated rat renal artery / Efekat MnSOD (E. coli) Na relaksaciju izolovane renalne arterije pacova izazvanu natrijum-nitro-prusidom
(Serbian Chemical Society, 2004)
In this study themolecular foundation of nitric oxide induced relaxation of arteries, with or without endothelium, of normotensive and spontanously hypertensive ratswas re-examined. With this purpose in mind, the effects ...
Kinetics of deep oxidation of n-hexane and toluene over Pt/Al2O3 catalysts: Platinum crystallite size effect
(Elsevier, 2004)
The kinetics of n-hexane and toluene complete oxidation has been studied over 0.12% Pt/Al 2 O 3 catalysts. Measurements were performed in an external recycle reactor. Reaction rates were measured as a function of temperature ...
Guaianolides from two subspecies of Amphoricarpos neumayeri from Montenegro
(Oxford : Pergamon-Elsevier Science Ltd, 2004)
Quantitative H-1 NMR measurements revealed Delta(11(13)) sesquiterpene gamma-lactones as the main constituents (greater than or equal to 1% per weight of dried plant material) in the crude extracts of the aerial parts of ...
Sesquiterpene lactones from Cicerbita alpina
(Oxford : Pergamon-Elsevier Science Ltd, 2004)
The roots of Cicerbita alpina (L.) Wallr. were collected from Mt. Komovi, Montenegro.
Reflection and structural analyses of mirror-bright metal coatings
(Springer, 2004)
Reflection and structural analyses of different copper and zinc coatings were performed. The copper coatings were electrodeposited from a sulfate solution in the presence of thiourea, as well as in the presence of modified ...
Electrochemical water splitting on zeolite supported platinum clusters
(Ecole Polytechnique Montreal, Montreal, 2004)
Platinum was incorporated into the cavities of NaX zeolite by impregnation/thermal decomposition technique, using Pt(II)-
acetylacetonate in acetone as an impregnating solution. The platinum-to-zeolite weight ratio amounted ...
Sesquiterpene lactones, lignans and flavones of Centaurea affinis
(Oxford : Pergamon-Elsevier Science Ltd, 2004)
Aerial parts of Centaurea affinis Friv. were collected at Vlasina (east Serbia) in September 1998.
Associations of trace elements in aerosol at the South Adriatic Coast
(Springer Heidelberg, Heidelberg, 2004)
We applied statistical methods to the data of a 5-year sampling period to characterize the features of trace elements in airborne particulate matter at the South Adriatic Coast. The analysis of surface soil samples was ...
Heavy metals accumulation in tree leaves from urban areas
(Springer Heidelberg, Heidelberg, 2004)
Higher plants may be used as biomonitors for the assessment of atmospheric heavy metal pollution by means of their bioaccumulative properties. We evaluated the reliability of biomonitoring heavy metal pollution by horse ...