Proceedings of the National Academy of Sciences (PNAS)

Table Of Contents Page, PNAS Volume 123, Number 6

The Middle Pleistocene (MP; ca. 774 to 129 ka) marks a critical period of human evolution, characterized by increasing ...
PNAS

Superconductivity in the PbO-type structure α-FeSe

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PNAS

Programmable transdermal drug delivery of nicotine using carbon nanotube membranes

Edited by Mildred Dresselhaus, Massachusetts Institute of Technology, Cambridge, MA, and approved May 13, 2010 (received for review April 8, 2010) ...
PNAS

Lower socioeconomic status and the acceleration of aging: An outcome-wide analysis

Lower socioeconomic status (SES) is a determinant of many of the health problems that emerge at older ages. The extent to which lower SES is associated with faster decline in age-related functions and ...
PNAS

Midwater ecosystems must be considered when evaluating environmental risks of deep-sea mining

Midwater animal biodiversity: Squid, fish, shrimp, copepods, medusa, filter-feeding jellies, and marine worms are among the midwater creatures that could be affected by deep sea mining. Photos by E.