Results 261 to 270 of about 9,679,616 (302)
Some of the next articles are maybe not open access.
Deuterium Isotope Effects in Cytology
1965Publisher Summary This chapter focuses on the growth characteristics of microorganisms and higher plants in deuteriated media and on the cytology of deuteriated cells. Deuteriated microorganisms exhibit a less well-organized pattern than do ordinary microorganisms. The degree of structural disorder is at a minimum in fully adapted cells, perhaps as a
E, Flaumenhaft +3 more
openaire +2 more sources
Mass-Independent Isotope Effects
The Journal of Physical Chemistry B, 2013Three fundamental properties of atomic nuclei-mass, spin (and related magnetic moment), and volume-are the source of isotope effects. The mostly deserved and popular, with almost hundred-year history, is the mass-dependent isotope effect. The first mass-independent isotope effect which chemically discriminates isotopes by their nuclear spins and ...
openaire +2 more sources
The secondary hydrogen isotope effect
The International Journal of Applied Radiation and Isotopes, 1960Abstract Secondary isotope effects are reviewed with particular regard to their interpretation within a consistent scheme. It appears that adherence to formal considerations of vibrational frequency shifts is inadequate for the interpretation of many experimental results, and that these may be more fruitfully discussed in terms of “electronic ...
openaire +2 more sources
Assessment of the ozone isotope effect
2005This series, established in 1965, is concerned with recent developments in the general area of atomic, molecular and optical physics. The field is in a state of rapid growth, as new experimental and theoretical techniques are used on many old and new problems.
Mauersberger, K. +3 more
openaire +4 more sources
Mechanism from Isotope Effects
Isotopes in Environmental and Health Studies, 1998Abstract Isotope effects represent perhaps one of the most versatile tools available to investigators interested in the determination of reaction mechanism, particularly in the case of the mechanistic enzymologist. Interpretation of isotope effect data is somewhat more difficult for enzyme reactions, since the chemical or isotope-dependent step(s) is(
openaire +3 more sources
Isotope Effects in the Chemistry of Atmospheric Trace Compounds
Chemical Reviews, 2003Jan Kaiser +2 more
exaly
The nitrogen cycle: A review of isotope effects and isotope modeling approaches
Soil Biology and Biochemistry, 2017Klaus Butterbach-Bahl +2 more
exaly