Sentences with phrase «stable hydrogen isotope»

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.

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.

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