Претраживање
Приказ резултата 21-29 од 29
pH-Dependent Leaching of Dump Coal Ash-Retrospective Environmental Analysis
(Taylor & Francis Inc, Philadelphia, 2009)
Trace and major elements in coal ash particles from dump of "Nikola Tesla A" power plant in Obrenovac near Belgrade (Serbia) can cause pollution, due to leaching by atmospheric and surface waters. In order to assess this ...
Influence of potential pulse conditions on the formation of honeycomb-like copper electrodes
(Elsevier, 2009)
Electrodeposition of copper by pulsating overpotential (PO) regime in the hydrogen co-deposition range was examined by the determination of the average current efficiency of hydrogen evolution and by microscopic analysis ...
Evaluation of Hypericum perforatum oil extracts for an antiinflammatory and gastroprotective activity in rats
(Phytotherapy Research, 2009)
Oil extracts of Hypericum perforatum L. (Oleum Hyperici) were prepared in three different ways according to the prescriptions from traditional medicine. Variability of constituents and biological activity were evaluated ...
A comparative study of the electrochemical properties of carbon nanotubes and carbon black
(Elsevier, 2009)
Two samples of commercial multi-walled carbon nanotubes (Sigma-Aldrich and Sun Nanotech) and a sample of carbon black (Vulcan XC-72R) were investigated in raw state and after the activation in nitric and sulfuric acid by ...
Melt Rheology of Aliphatic Hyperbranched Polyesters
(Wiley, 2009)
Rheological behavior in melt of aliphatic hyperbranched polyesters (AHBP), synthesized using pseudo-one-step and one-step procedure, was investigated in this work. Three commercially available AHBP were also examined. ...
Anticancer properties of ganoderma lucidum methanol extracts in vitro and in vivo
(Nutrition and Cancer, 2009)
Anticancer activities of various extracts of the medicinal mushroom, Ganoderma lucidum, have been widely demonstrated and are mainly associated with the presence of different bioactive polysaccharides and triterpenoids. ...
Synthesis, characterization and cytotoxicity of surface amino-functionalized water-dispersible multi-walled carbon nanotubes
(Elsevier, 2009)
Surface functionalization of multi-walled carbon nanotubes (MWCNTs), with amino groups via chemical modification of carboxyl groups introduced on the nanotube surface, using O-(7-azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium ...
Estrone derived steroidal diepoxide: Biologically active compound and precursor of a stable steroidal A,B-spiro system
(Elsevier Science Inc, New York, 2009)
A simple approach to a stable steroidal estrone derived A,B-spiro system is reported. Treatment of estrone derived A-ring diepoxyalcohol with the Ac2O-TMSOTf system at the ambient temperature led to acetylation, while at ...
Mixed steroidal tetraoxanes induce apoptotic cell death in tumor cells
(Investigational New Drugs, 2009)
In this study we investigated the antiproliferative activity of six mixed steroidal tetraoxanes against various tumor cell lines, the toxicity against normal peripheral blood mononuclear cells (PBMC), and the mode of HeLa ...