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.
Without their keen sense of smell, mosquitoes wouldn't get very far. They rely on this sense to find a host to bite and spots to lay eggs.
Plants & Animals
Jan 21, 2020
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32
Recent models are telling us that, as our climate warms up, herbivores and pests will cause increased damage to agricultural crops. One study predicted that crop yield lost to insects increases 10 to 25 percent for every ...
Plants & Animals
Jan 21, 2020
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A team of researchers from the University of Oklahoma, Virginia Tech and the University of Notre Dame has found that populations of mayflies in parts of North America have fallen dramatically in recent years. In their paper ...
Cultural differences play a pivotal role in how people in different parts of the world perceive when it is acceptable to sacrifice one person to save a larger group, new research has shown.
Social Sciences
Jan 21, 2020
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What rules shaped humanity's original social networks? Researchers in Japan developed new mathematical models to understand what conditions produced traditional community structures and conventions around the world, including ...
Social Sciences
Jan 21, 2020
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339
Deep within Earth, swirling liquid iron generates our planet's protective magnetic field. This magnetic field is invisible but is vital for life on Earth's surface: it shields the planet from harmful solar wind and cosmic ...
Earth Sciences
Jan 20, 2020
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Racial bias and policing made headlines last year after a study examining records of fatal police shootings claimed white officers were no more likely to shoot racial minorities than nonwhite officers. There was one problem: ...
Social Sciences
Jan 20, 2020
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101
Limiting global warming to well below 2 degrees C requires a decarbonized world by 2050 at the latest, and a corresponding global transformation of the energy and land use systems of societies around the world. To achieve ...
Environment
Jan 20, 2020
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Like motley bandits, certain enzymes implicated in cancer and other diseases also annihilate each other. A new study reveals details of their mutual foils in the hopes that these behaviors can be leveraged to fight the enzymes' ...
Cell & Microbiology
Jan 20, 2020
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152
A remarkable combination of artificial intelligence (AI) and biology has produced the world's first "living robots".
Biotechnology
Jan 20, 2020
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