Environment

Using computational techniques, scientists at Los Alamos National Laboratory are working to more clearly understand how diseases such as HIV are spread. In this image, arrows indicate actual transmission; red and blue persons are sampled, and the grey outline person is an unsampled link discovered in the computer analysis of the phylogenetic trees of the disease agents. Image courtesy Los Alamos National Laboratory. Courtesy/LANL

LANL News:

• Computational modeling fills in potential gaps in transmission chains

Scientists have a new tool for unraveling the mysteries of how diseases Read More

1. The traditional idea of the radiation belts includes a larger, more dynamic outer belt and a smaller, more stable inner belt with an empty slot region separating the two. However, a new study based on data from NASA’s Van Allen Probes shows that all three regions—the inner belt, slot region, and outer belt—can appear differently depending on the energy of electrons considered and general conditions in the magnetosphere. 2. At the highest electron energies measured—above 1 MeV—researchers saw electrons in the outer belt only. 3. The radiation belts look much different at the lowest electron Read More