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Proceedings of the National Academy of Sciences
hideThe 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. 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 (abbreviated Proc Natl Acad Sci USA for referencing and indexing purposes) is published weekly in print, and daily online in PNAS Early Edition CODEN: PNASC8.
For more information about Proceedings of the National Academy of Sciences, read the full article at
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News tagged with proceedings of the national academy of sciences
U.S. Crop Yields Could Wilt in Heat
Aug 24, 2009 |
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(PhysOrg.com) -- Yields of three of the most important crops produced in the United States - corn, soybeans and cotton - are predicted to fall off a cliff if temperatures rise due to climate change.
Scientists discover gene that 'cancer-proofs' rodent's cells
Oct 26, 2009 |
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(PhysOrg.com) -- Despite a 30-year lifespan that gives ample time for cells to grow cancerous, a small rodent species called a naked mole rat has never been found with tumors of any kind—and now biologists ...
Study: Believers' inferences about God's beliefs are uniquely egocentric
Medicine & Health / Psychology & Psychiatry
Nov 30, 2009 |
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Religious people tend to use their own beliefs as a guide in thinking about what God believes, but are less constrained when reasoning about other people's beliefs, according to new study published in the ...
Novel 'On-Off Switch' Mechanism Stops Cancer in Its Tracks
Sep 11, 2009 |
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(PhysOrg.com) -- A tiny bit of genetic material with no previously known function may hold the key to stopping the spread of cancer, researchers at Yale School of Medicine and Sichuan University in Chengdu, ...
At Stanford, nanotubes + ink + paper = equal instant battery (w/ Video)
Nanotechnology / Nanomaterials
Dec 07, 2009 |
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(PhysOrg.com) -- Stanford scientists are harnessing nanotechnology to quickly produce ultra-lightweight, bendable batteries and supercapacitors in the form of everyday paper.
Longevity tied to genes that preserve tips of chromosomes
Nov 11, 2009 |
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A team led by researchers at Albert Einstein College of Medicine of Yeshiva University has found a clear link between living to 100 and inheriting a hyperactive version of an enzyme that rebuilds telomeres - the tip ends ...
Researchers identify dominant chemical that attracts mosquitoes to humans
Oct 26, 2009 |
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Scientists at the University of California, Davis, have identified the dominant odor naturally produced in humans and birds that attracts the blood-feeding Culex mosquitoes, which transmit West Nile virus ...
Daily bathroom showers may deliver face full of pathogens, says study
Sep 14, 2009 |
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While daily bathroom showers provide invigorating relief and a good cleansing for millions of Americans, they also can deliver a face full of potentially pathogenic bacteria, according to a surprising new ...
Bacteria offer insights into human decision making
Dec 08, 2009 |
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(PhysOrg.com) -- Scientists studying how bacteria under stress collectively weigh and initiate different survival strategies say they have gained new insights into how humans make strategic decisions that ...
Like humans, monkeys fall into the 'uncanny valley'
Oct 13, 2009 |
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(PhysOrg.com) -- Princeton University researchers have come up with a new twist on the mysterious visual phenomenon experienced by humans known as the "uncanny valley." The scientists have found that monkeys ...
Scientists: Man controlled robotic hand with thoughts
Dec 02, 2009 |
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(AP) -- A group of European scientists said Wednesday they have successfully connected a robotic hand to an amputee, allowing him to feel sensations in the artificial limb and control it with his thoughts.
Study finds people who multitask often bad at it
Medicine & Health / Psychology & Psychiatry
Aug 24, 2009 |
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(PhysOrg.com) -- Attention, multitaskers (if you can pay attention, that is): Your brain may be in trouble.
Absence of evidence for a meteorite impact event 13,000 years ago
Space & Earth / Earth Sciences
Dec 08, 2009 |
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An international team of scientists led by researchers at the University of Hawaii at Manoa have found no evidence supporting an extraterrestrial impact event at the onset of the Younger Dryas ~13000 years ...
Cement's basic molecular structure finally decoded
Nanotechnology / Nanomaterials
Sep 09, 2009 |
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(PhysOrg.com) -- In the 2,000 or so years since the Roman Empire employed a naturally occurring form of cement to build a vast system of concrete aqueducts and other large edifices, researchers have analyzed the molecular ...
Engineer Discovers Why Particles Like Flour Disperse on Liquids
Nov 16, 2009 |
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(PhysOrg.com) -- Even if you are not a cook, you might have wondered why a pinch of flour (or any small particles) thrown into a bowl of water will disperse in a dramatic fashion, radiating outward as if it ...
