Proceedings of the National Academy of Sciences (PNAS)

Table Of Contents Page, PNAS Volume 122, Number 49

NASA’s OSIRIS-REx mission characterized the asteroid Bennu and delivered pristine samples of its regolith to Earth. Coordinated analyses of this primitive, carbonaceous material are elucidating the ...
PNAS

COMPETITION, HABITAT SELECTION, AND CHARACTER DISPLACEMENT IN A PATCHY ENVIRONMENT

Note: The article usage is presented with a three- to four-day delay and will update daily once available. Due to ths delay, usage data will not appear immediately following publication. Citation ...
PNAS

Absolute and Unconditional Convergence in Normed Linear Spaces

Note: The article usage is presented with a three- to four-day delay and will update daily once available. Due to ths delay, usage data will not appear immediately following publication. Citation ...
PNAS

Pressure-induced redox reversal of iron and the distribution of elements in deep Earth

The oxidation–reduction behavior of iron under pressure in part controls the chemical processes occurring in the deep Earth. Large-scale first-principles calculations show that iron reverses its redox ...