Results 291 to 300 of about 930,809 (352)

Urine Stable Isotope Ratios Are Associated with Proportional Intakes of Animal Protein and Added Sugars in a 15-Day Controlled Feeding Study. [PDF]

J Nutr
O'Brien DM, Freedman LS, Rivera P, Sagi-Kiss V, Palma-Duran SA, Barrett B, Commins J, Tasevska N.   +7 more
europepmc   +1 more source

TERMINOLOGY OF ISOTOPES

Science, 1934
openaire   +3 more sources

Predominantly Terrestrial Foraging and Reproductive Gains From a High Trophic Level Diet in Roof-Nesting Herring Gulls (<i>Larus argentatus</i>). [PDF]

Ecol Evol
Allen SF, Inger R, Petts PE, Affleck JM, Bennett K, Davies TW, Haden BD, Hughes LC, Boogert NJ, Mitchell C, Jimenez-Guri E, Blount JD.   +11 more
europepmc   +1 more source

Investigating a novel three-step excitation scheme for the ultra-trace analysis of plutonium via RIMS. [PDF]

Anal Bioanal Chem
Berg F, Reich T.
europepmc   +1 more source

A High-Precision Analytical Technique for Dissolved N₂ Isotopes in Aquatic Systems: Biogeochemical Applications and Determination of Solubility Equilibrium Isotope Effects. [PDF]

Rapid Commun Mass Spectrom
McPaul K, Wankel SD, Seltzer AM.
europepmc   +1 more source

Table of Isotopes [PDF]

, 1985
openaire   +3 more sources

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Silicon Isotopes

2011
International ...
André, Luc, Cardinal, Damien
openaire   +3 more sources

Isotopic catalysis and isotopic analysis

Russian Journal of Physical Chemistry B, 2013
Isotopes with magnetic nuclei accelerate the biochemical reactions of adenosine triphosphate synthesis by a factor of two to three. An isotope effect in which isotopes are preserved in the reaction system is known as isotopic catalysis. It has been revealed in enzymatic reactions catalyzed by magnesium, zinc, and calcium ions.
Yu. A. Karpov, Anatoly L. Buchachenko, S. E. Arkhangel’skii, G. G. Glavin, D. A. Kuznetsov   +4 more
openaire   +2 more sources

Isotopic Distributions

2013
Isotopic information determined by mass spectrometry can be used in a wide variety of applications. Broadly speaking these could be classified as "passive" applications, meaning that they use naturally occurring isotopic information, and "active" applications, meaning that the isotopic distributions are manipulated in some way.
Alan L, Rockwood, Magnus, Palmblad
openaire   +3 more sources