New technology developed by South Australian scientists is tracking the origins of seafood in a bid to combat fraudulent labelling and improve sustainability. Chemical fingerprints found in the bones and shells of marine life is key to knowing which ocean they come from.
Published in Australian Archaeology, the new research involved isotope analysis of teeth excavated from graves to determine how many people buried were born in South Australia or Britain, as part of scientific efforts by Flinders University experts deploying this technique for the first time in the state.
Researchers at Washington University in St. Louis reported the first observations of a new form of fluorine, the isotope 13F, described March 30 in the journal Physical Review Letters. They made their discovery as part of an experiment conducted at the National Superconducting Cyclotron Laboratory at Michigan State University (MSU).
An ORNL team has devised a way to extract Pm-147 from the liquid runoff left after Pu-238 production. This reduces radioactive elements that must be disposed of but also, if sustainable, could establish a domestic supply of Pm-147, for which there is already demand.
Researchers in the DOE Isotope Program have developed an effective radionuclide, cerium-134, as a paired analogue of actinium and thorium that can be imaged using positron emission tomography (PET).
Researchers from Berkeley Lab and Los Alamos National Laboratory have developed new methods for the large-scale production, purification, and use of the radioisotope cerium-134, which could serve as a PET imaging radiotracer for a highly targeted cancer treatment known as alpha-particle therapy.
Nuclear scientists recently found that the nucleus of the radioactive isotope selenium-72 has a football-like shape. This is similar to the stable, nonradioactive isotopes of selenium, but different from the disk-like shape of radioactive selenium-70 nuclei. This finding helps explain how the interaction between protons and neutrons in nuclei leads to collective behavior.
University of Utah researchers find that stable isotopes in hair reveal a divergence in diet according to socioeconomic status (SES), with lower-SES areas displaying higher proportions of protein coming from cornfed animals. It’s a way, the authors write, to assess a community’s diet and their health risks.
A team of scientists working at Berkeley Lab’s 88-Inch Cyclotron has discovered a new form of the human-made element mendelevium. The newly created isotope, mendelevium-244, is the 17th and lightest form of the element, which was first discovered in 1955 by a Berkeley Lab team.
A recent measurement exploring the structure of magnesium-40 has shown a surprising change in the structure relative to expectations. This unanticipated change could be pointing to physics missing from our theories, such as the effects of weak binding between particles.