Collaborator David Nelson, a stable isotope ecologist with the University of Maryland Center for Environmental Science, tested the birds» feathers for
stable hydrogen isotopes, which can be used to determine where the birds likely grew their feathers.
The study by Louie Yang (Dept. Entomology at UC - Davis) used
stable hydrogen isotope analysis to test tissue samples from 114 butterflies at 4 overwintering locations.
Not exact matches
Analysis of the water leaving Venus's atmosphere, however, shows that many of the
hydrogen ions are actually a
stable isotope of the element called deuterium, which consists of a proton and a neutron (rather than just a proton) in its nucleus.
As precipitation moves inland, water with the heavier form of
hydrogen falls out first, which creates predictable patterns of the
stable isotopes ratios of precipitation across continents.
The article discussing the possibility of generating energy using small - scale nuclear fusion suggested that both deuterium and tritium are
stable isotopes of
hydrogen.
Lower amounts of
stable hydrogen and oxygen
isotopes in the ice indicate colder weather, Persoiu said.
Cosmologists have demonstrated that
hydrogen and helium and their
stable isotopes like deuterium were all synthesized just minutes after the Big Bang, when the Universe was hot enough to power nuclear reactions.
The sources of methane variations can be estimated using the interpolar gradient (for the last climatic cycle, using Greenland - Antarctic ice core differences after age scale synchronization) and also using
stable isotopes of carbon and
hydrogen of methane.
Investigation of the microbial metabolism of carbon dioxide and
hydrogen in the kangaroo foregut by
stable isotope probing