Now showing items 1-10 of 82
The effect of tropopause height on the content of radioactive debris in surface atmosphere
(Environment International, 1997)
The effect of tropopause height on the content of Cs-137 and total beta activity in surface atmosphere was considered for the period of intensive nuclear weapon tests, from 1968-1971. The activity of Cs-137 in monthly air ...
Mechanically activated transition of anatase to rutile
(American Ceramic Society Bulletin, 1997)
During vibromilling, transformation of anatase to rutile was detected, with 89% phase transformation after 600 min of grinding. Partially activated anatase required additional heating.
Gas chromatography mass spectrometry determination of isosorbide 5-mononitrate and related impurities in raw materials and dosage formulations
(Journal of Pharmaceutical and Biomedical Analysis, 1997)
A straightforward quantitative method for gas chromatography-mass spectrometry determination of isosorbide 5-mononitrate (ISSMN) and its related impurities such as isosorbide (IS), isosorbide diacetate (ISDA) and isosorbide ...
Superoxide dismutase activities in different tissues of female rats treated with olive oil
(Physiological Research, 1997)
The activities of cytosol superoxide dismutase (CuZnSOD) and mitochondrial superoxide dismutase (MnSOD) were measured in subcellular fractions of homogenates prepared from the brain, thymus and liver of ovariectomized (OVX) ...
Radiosensitivity of different aged human lymphocytes following electron irradiation in vitro
Cytochalasin B-blocking micronucleus test and chromosomal aberration analysis were used in this study to estimate the yield of individual variability in radiation response of different aged human lymphocytes. Both analyses ...
Influence of sodium dodecyl sulfate micelles on the kinetics of complex formation between Pd(H2O)(4)(2+) and glutathione
The kinetics of the complex formation between Pd(H2O)(4)(2+) and glutathione was investigated in the presence of sodium dodecyl sulfate in the acidity range from 2 M HClO4 to pH 5. Acceleration (from 2 M HClO4 to pH 3.5) ...
The favored trans(O-6) geometry in hexadentate copper(II) complexes of 1,3-propanediamine-N,N-diacetic-N,N-di-3-propionic acid. Crystal structure of trans(O-6)-Na-2[Cu(1,3-pddadp)]center dot NaNO3 center dot 2H(2)O. Strain analysis and spectral assignments of complexes
(Inorganica Chimica Acta, 1997)
The octahedral copper(II) complexes of 1,3-propanediamine-N,N-diacetic-N,N-di-3-propionic acid (H(4)1,3-pddadp) prepared in the region of pH 2 to 7 are hexadentates. Only one (trans(O-6)) of the three geometrical isomers ...
The square root approximation to the dispersion relation of the axially-symmetric electron wave on a cylindrical plasma
(Zeitschrift fur Naturforschung. Section A: Journal of Physical Sciences, 1997)
This paper suggests the use of a simple square root approximation to the dispersion relation of axially-symmetric electron surface waves on cylindrical plasmas. The point is not merely to substitute the exact expression ...
On the axial variation of the electron density in a plasma column of the surfatron type
(Physica Scripta, 1997)
This paper deals with the axial structure of the electron density in the central portion of a plasma of the surfatron type. The point of departure is an expression for the attenuation coefficient which includes the dielectric ...
Residual entropy of the square Ising antiferromagnet in the maximum critical field: The Fibonacci matrix
(Journal of Physics. A: Mathematical and General, 1997)
We find the analytical expression for the residual entropy of the square Ising model with nearest-neighbour antiferromagnetic coupling J, in the maximum critical field H-c = 4J, in terms of the Fibonacci matrix, which ...