The Proceedings of the National Academy of Sciences of the United States of America, usually referred to as PNAS, is the official journal of the United States National Academy of Sciences (NAS). PNAS is an important scientific journal that printed its first issue in 1915 and continues to publish highly cited research reports, commentaries, reviews, perspectives, feature articles, profiles, letters to the editor, and actions of the Academy. Coverage in PNAS broadly spans the biological, physical, and social sciences. Although most of the papers published in the journal are in the biomedical sciences, PNAS recruits papers and publishes special features in the physical and social sciences and in mathematics. PNAS is published weekly in print, and daily online in PNAS Early Edition. PNAS was established by NAS in 1914, with its first issue published in 1915. The NAS itself had been founded in 1863 as a private institution, but chartered by the US Congress, with the goal to "investigate, examine, experiment, and report upon any subject of science or art." By 1914, the Academy was well established.
Researchers create hydrogen fuel from seawater
Stanford researchers have devised a way to generate hydrogen fuel using solar power, electrodes and saltwater from San Francisco Bay.
Mar 18, 2019
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Prenatal testosterone linked to long-term effects in females who share womb with male twin
Women who shared their mother's womb with a male twin are less likely to graduate from high school or college, have earned less by their early 30s, and have lower fertility and marriage rates when compared with twins who ...
Fishing for fun, not food: Study takes stock of recreational fishing impacts
The vast majority of people who fish in the world do so for pleasure, not food. Yet despite the substantial impacts these fishers have on fish populations and aquatic ecosystems worldwide, fishery management approaches still ...
Computer science college seniors in U.S. outperform peers in China, India and Russia, new research says
Undergraduate computer science programs at universities and colleges in the United States appear to produce more skilled students on average than equivalent programs in China, India and Russia, according to new Stanford-led ...
Mammals' unique arms started evolving before the dinosaurs existed
Bats fly, whales swim, gibbons swing from tree to tree, horses gallop, and humans swipe on their phones—the different habitats and lifestyles of mammals rely on our unique forelimbs. No other group of vertebrate animals ...
Scientists discover common blueprint for protein antibiotics
A discovery by researchers at the Los Angeles Biomedical Research Institute (LA BioMed) has uncovered a common blueprint for proteins that have antimicrobial properties. This finding opens the door to design and development ...
Expansion of transposable elements offers clue to genetic paradox
Species often experience a genetic bottleneck that diminishes genetic variation after speciation or introduction into a new area. Though bottlenecks in population size always reduce fitness and evolutionary potential, introduced ...
When it comes to monarchs, fall migration matters
Scientists studying monarch butterflies have traditionally focused on two sources for their decline—winter habitat loss in Mexico and fewer milkweed plants in the Midwest.
Can people learn to embrace risk?
Studies have shown women are more risk-averse than men, more likely to opt for the smaller sure thing than gamble on an all-or-nothing proposition, a trait experts say could help to explain the persistent wage gap between ...
Bacteria may help frogs attract mates
Brazilian scientists have discovered that the strong odor released by some amphibian species is produced by bacteria and that attracting a mate is one of its purposes.
