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Preliminary investigation of antimicrobial activity of St. John's Wort
(Medical University Faculty of Pharmacia, 1998)
Preliminary investigations of Hypericum perforatum have shown that one of the most important activities of the plant is its antibacterial activity. The most active component of the acetonic extract has been isolated through ...
Highly oxygenated guaianolides from Anthemis carpatica
(American Chemical Society (ACS), 1997)
Twelve new guaianolides, (1-12), six of them (2-5, 9 and 12) containing a hydroperoxy function, were isolated from the aerial parts of the flowering plant Anthemis carpatica. Their structures were elucidated by spectroscopic ...
Corrosion protection of aluminium by a cataphoretic epoxy coating
(Elsevier, 1999)
The corrosion behavior and thermal stability of epoxy coating electrodeposited on aluminium have been investigated during exposure to
3% NaCl. Electrochemical impedance spectroscopy (EIS), gravimetric liquid sorption ...
A simple approximative method for determination of Auger 1 lifetime in degenerate narrow gap semiconductors
(Elsevier, 1993)
Using the well-known Beattie-Landsberg expression for Auger 1 lifetime and the “effective” Auger energy gap (EgA), we obtained a simple approximative expression for determination of the Auger 1 lifetime. We also obtained ...
Essential oil of achillea coarctata
(Taylor & Francis, 1999)
Essential oil of Achillea coarctata Poir. was investigated for yield and composition. Sixty identified compounds in the oil constituted 79-3% of the oil. The main compounds of the oil were: caryophyllene oxide (9.0%), ...
Semisynthesis of Taxol (R): an improved procedure far the isolation of 10-deacetylbaccatin III
(Serbian Chemical Soc, Belgrade, 1999)
From the needles of domestic yew, (Taxus baccata), 10-deacetylbaccatin III (10-DAB) call be isolated in quantities of up to 297 mg per kg of fresh needles. Additional quantities of 10-DAB call be obtained from the extract ...
Free radical ring expansion and subsequent reactions of intermediary carbon radicals
(Serbian Chemical Society, 1996)
Alkyl radicals, derived from ethyl 1-(bromoalkyl)-2-oxocyclo-alkanecarboxylates or from the corresponding thiohydroxamic esters, undergo a ring expansion reaction and subsequent intermoleculaar addition/elimination reactions. ...
Degradative side reactions in the syntheses of exactly alternating silarylene-siloxane polymers
(Springer, 1992)
Four principal synthetic methods for preparation of exactly alternating silarylene-siloxane polymers: the chlorosilane, the acetoxysilane, the aminosilane and the ureidosilane polymerization reactions, were compared under ...
Functionalized oligopolysiloxanes by heterogeneously catalyzed equilibration polymerization reactions
(Springer, 1995)
A new general procedure for preparation of functionalized oligopolysiloxanes of predetermined molecular weight is described. It utilizes heterogeneously catalyzed siloxane equilibration polymerization reactions which do ...
Covalent glycophospholipid binding to hemoglobin. A new post-translational modification occurring in erythrocytes exposed to insulin
(Serbian Chemical Society, 1996)
In this work a novel hitherto unrecognised hemoglobin (Hb) fraction, HbA1x, which we detected previously in hemolysates of erythrocytes exposed to high concentration of insulin under hypoglycemic conditions, both in vivo ...