Претраживање
Приказ резултата 21-30 од 35
P-31 NMR spectroscopy and polarographic combined study of erythrocytes treated with 5-fluorouracil - Cardiotoxicity-related changes in ATP, 2,3-BPG, and O-2 metabolism
(New York Acad Sciences, New York, 2005)
Antineoplastic drug 5-fluorouracil (5-FU) frequently shows cardiotoxic effects, the mechanism of which has not yet been elucidated. The objective of the present study was to explore effects of 5-FU on metabolism of ATP, ...
Ascorbic acid and the oxidative processes in pea root cell wall isolates - Characterization by fluorescence and EPR spectroscopy
(New York Acad Sciences, New York, 2005)
A comparative fluorescence and oxygen radical-sensitive spin trap EPR spectroscopic study of isolated cell walls (with proteins or deproteinated), in the presence and absence of ascorbate and H2O2 is presented. Fluorescence ...
Influence of photic environment on the form of the fish electroretinographic off-response
(New York Acad Sciences, New York, 2005)
Scotopic electroretinogram of dogfish shark (Scylliorhinus canicula) and eel (Anguilla anguilla) is characterized by a negative off-response, changing in sign under photopic condition. It increased under the effect of ...
Mycorrhiza formation enhances adaptive response of hybrid poplar to drought
(New York Acad Sciences, New York, 2005)
Mycorrhized and nonmycorrhized plants of hybrid poplar (Populus tremula L. x Populus tremuloides Mich) were cultivated in petri dishes until the amount of water became limiting (detected by a decrease of photosynthetic ...
Characterization of enzymatically synthesized diferulate
(New York Acad Sciences, New York, 2005)
Horseradish peroxidase was used to synthesize diferulates by a procedure in which ethyl ferulate was used as substrate. Four different forms were obtained, of which two dominant were the 5-5' and 8-5' diferulate. Fluorescence ...
Nonlinear properties and stability of SnO2 varistors prepared by evaporation and decomposition of suspensions
(Elsevier Sci Ltd, Oxford, 2005)
SnO2 varistors doped with CoO, Cr2O3 and Nb2O5 were prepared by evaporation and decomposition of suspensions. The composition of the varistors was optimized to improve electrical properties, such as nonlinearity, leakage ...
Spectral analysis of cerebellar activity after acute brain injury in anesthetized rats
(Nencki Institute of Experimental Biology, 2005)
We investigated cerebellar electrocortical activity before and after unilateral brain injury in anesthetized rats. Spectral analysis of cerebellar activity was obtained by Fast Fourier Transformation. There was a dominance ...
Organic manure stimulates biological activity and barley growth in soil subject to secondary salinization
(Pergamon-Elsevier Science Ltd, Oxford, 2005)
A pot experiment was performed to compare the impact of organic manure on soil enzymatic activity, respiration rate and the growth of two barley cultivars (Hordeum vulgare L.) differing in their salt tolerance under a ...
Fractal analysis of artificial and cerebellar signals at sampling frequencies of 32-4096 Hz
(Serbian-Hungarian Joint Symposium on Intelligent Systems, 2005)
The aim of this study was to investigate the effects of varying sampling frequencies on fractal analysis of artificial and cerebellar signals. Applying Higuchi's algorithm, we calculated fractal dimension (FD) values of ...
Application of the master sintering curve theory to non-isothermal sintering of BaTiO3 ceramics
(Trans Tech Publications Ltd, 2005)
In this paper a practical approach to the analysis of sintering of BaTiO3 using the Master Sintering Curve concept has been presented. Non-isothermal sintering of high-purity non-doped BaTiO3 ceramics was monitored using ...