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Uticaj rastvora amonijum-nitrata i natrijum-sulfata na mehanička svojstva i strukturu geopolimera na bazi elektrofilterskog pepela termoelektrana / Effects of ammonium nitrate and sodium sulfate solution on mechanical properties and structure of fly ash based geopolymers
(Univerzitet u Beogradu, Tehnološko-metalurški fakultet, 2015)
Geopolimeri na bazi tri različita uzorka elektrofilterskog pepela izloženi su dejstvu koncentrovanog rastvora NH4NO3 (480 g/dm3) i rastvora Na2SO4 (50 g/dm3) u periodu od 18 meseci. Promene mehaničkih svojstava geopolimera ...
Pt nanoparticles on tin oxide based support as a beneficial catalyst for oxygen reduction in alkaline solutions
(Royal Soc Chemistry, Cambridge, 2015)
A platinum nanocatalyst on Sb doped tin oxide support (Sb-SnO2) was synthesized and characterized as a catalyst for oxygen reduction reaction in 0.1 mol dm(-3) NaOH solution at 25 degrees C. Sb (5%) doped tin oxide support ...
Early flowering species - model plants for studies of ontogenesis in vitro
(Univerzitet u Beogradu - Biološki fakultet - Institut za botaniku i botaničku baštu "Jevremovac", Beograd, 2015)
Chenopodium rubrum L. and Chenopodium murale L. are two annual weed species with different photoperiodic demands. The use of species from the same genus, with a similar type of morphogenesis but with different photoperiodic ...
Thermal properties of polymer-matrix composites reinforced with E-glass fibers
(Soc Microelectronics, Electron Components Materials-Midem, Ljubljjana, 2015)
The influence of the fraction of the glass-fiber (EGF) reinforcement, from 0 to 15 wt%, on the thermal properties of the polymer-matrix composites with the CaCO3 mineral filler is studied. The proper ratio of glass-fibers ...
Estimation of meristemoid complexity during Tacitus bellus in vitro shoot organogenesis by 2D fractal analysis
(Univerzitet u Beogradu - Biološki fakultet - Institut za botaniku i botaničku baštu "Jevremovac", Beograd, 2015)
This study considered the analysis of 2D fractal characteristics of cell populations that participate in meristemoid formation during the process of de novo shoot organogenesis in Tacitus bellus leaf explant culture. ...
Manganese concentration in plants of the protected natural resource, Kosmaj, in Serbia
(Srpsko biološko društvo, Beograd, i dr., 2015)
This study was focused on determining the manganese (Mn) concentration in vegetative organs of 10 plant species (8 woody and 2 herbaceous), from four sites in the protected natural resource Kosmaj. The concentration of Mn ...
Effects of 5-Fluorouracil, Etoposide and CdCl2 in Aquatic Oligochaeta Limnodrilus udekemianus Claparede (Tubificidae) Measured by Comet Assay
(Springer International Publishing Ag, Cham, 2015)
Genotoxicity of 5-fluorouracil (5-FU), etoposide (ET) and cadmium chloride (CdCl2) was evaluated in Limnodrilus udekemianus, cosmopolitan tubificid species, by alkaline single-cell gel electrophoresis (comet assay). Groups ...
Comparative analysis of antioxidative systems in malignant and benign brain tumours
(Taylor & Francis Ltd, Abingdon, 2015)
Objectives: Comparison of redox conditions in malignant and benign tumours is essential for understanding the role of reactive oxygen species in the pathophysiology of aggressive cancer profiles. Here we compare antioxidative ...
Further in vitro biological activity evaluation of amino-, thio- and ester-derivatives of avarol
(Taylor & Francis Ltd, Abingdon, 2015)
The acetylcholinesterase inhibitory and/or antitumour activities of amino-, thio-and ester-derivatives of avarol selected were evaluated for the first time at in vitro conditions. Avarol-3',4'-dithioglycol (1) and avarol-4'-(3) ...