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Proceedings of the National Academy of Sciences

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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. 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 Wikipedia.
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News tagged with proceedings of the national academy of sciences

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Bacteria offer insights into human decision making

Bacteria offer insights into human decision making

Physics / General Physics

created 9 hours ago | popularity 5 / 5 (4) | comments 1

(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 ...


Absence of evidence for a meteorite impact event 13,000 years ago

Absence of evidence for a meteorite impact event 13,000 years ago

Space & Earth / Earth Sciences

created 19 hours ago | popularity 4.4 / 5 (9) | comments 10

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 ...


At Stanford, nanotubes + ink + paper = equal instant battery (w/ Video)

At Stanford, nanotubes + ink + paper = equal instant battery (w/ Video)

Nanotechnology / Nanomaterials

created Dec 07, 2009 | popularity 4.9 / 5 (26) | comments 2

(PhysOrg.com) -- Stanford scientists are harnessing nanotechnology to quickly produce ultra-lightweight, bendable batteries and supercapacitors in the form of everyday paper.


Facebook (and systems biologists) take note: Network analysis reveals true connections

Facebook (and Systems Biologists) Take Note: Network Analysis Reveals True Connections

Technology / Computer Sciences

created Dec 07, 2009 | popularity 3.9 / 5 (8) | comments 8

(PhysOrg.com) -- Facebook figures out that you know Holly, although you haven't seen her in 10 years, because you have four mutual friends -- a good predictor of direct friendship. But sometimes Facebook gets ...


The thalamus, middleman of the brain, becomes a sensory conductor

Medicine & Health / Neuroscience

created Dec 07, 2009 | popularity 4.2 / 5 (5) | comments 1

Two new studies show that the thalamus--the small central brain structure often characterized as a mere pit-stop for sensory information on its way to the cortex--is heavily involved in sensory processing, and is an important ...


Experts: Man controlled robotic hand with thoughts (AP)

Scientists: Man controlled robotic hand with thoughts

Medicine & Health / Research

created Dec 02, 2009 | popularity 5 / 5 (15) | comments 2

(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.


Peptides control crystal growth with 'switches, throttles and brakes'

Peptides control crystal growth with 'switches, throttles and brakes'

Nanotechnology / Bio & Medicine

created Nov 23, 2009 | popularity 4.8 / 5 (5) | comments 0

(PhysOrg.com) -- By producing some of the highest resolution images of peptides attaching to mineral surfaces, scientists have a deeper understanding how biomolecules manipulate the growth crystals. This research ...


Computational microscope peers into the working ribosome

Computational microscope peers into the working ribosome (w/ Video)

Biology / Cell & Microbiology

created Nov 23, 2009 | popularity 4.9 / 5 (9) | comments 2

Two new studies reveal in unprecedented detail how the ribosome interacts with other molecules to assemble new proteins and guide them toward their destination in biological cells. The studies used molecular ...


moa

Extinct moa rewrites New Zealand's history

Other Sciences / Archaeology & Fossils

created Nov 18, 2009 | popularity 4.6 / 5 (5) | comments 1

(PhysOrg.com) -- The evolutionary history of New Zealand's many extinct flightless moa has been re-written in the first comprehensive study of more than 260 sub-fossil specimens to combine all known genetic, ...


Words, gestures are translated by same brain regions, says new research

Medicine & Health / Neuroscience

created Nov 09, 2009 | popularity 4.6 / 5 (5) | comments 0

Your ability to make sense of Groucho's words and Harpo's pantomimes in an old Marx Brothers movie takes place in the same regions of your brain, says new research funded by the National Institute on Deafness and Other Communication ...


Scientists successfully reprogram blood cells

Biology / Cell & Microbiology

created Nov 09, 2009 | popularity 5 / 5 (6) | comments 0

Researchers have transplanted genetically modified hematopoietic stem cells into mice so that their developing red blood cells produce a critical lysosomal enzyme -preventing or reducing organ and central nervous system damage ...


H1N1 influenza adopted novel strategy to move from birds to humans

H1N1 influenza adopted novel strategy to move from birds to humans

Biology / Cell & Microbiology

created 12 hours ago | popularity 5 / 5 (1) | comments 0

(PhysOrg.com) -- The 2009 H1N1 influenza virus used a new strategy to cross from birds into humans, a warning that it has more than one trick up its sleeve to jump the species barrier and become virulent.


maize

The impact of the diffusion of maize to the Southwestern United States

Other Sciences / Archaeology & Fossils

created 13 hours ago | popularity 4.5 / 5 (2) | comments 0

An international group of anthropologists offers a new theory about the diffusion of maize to the Southwestern United States and the impact it had.


Why King Kong failed to impress

Biology / Cell & Microbiology

created 13 hours ago | popularity not rated yet | comments 0

Humans have the same receptors for detecting odors related to sex as do other apes and primates. But each species uses them in different ways, stemming from the way the genes for these receptors have evolved over time, according ...


Cut out the (estrogen) middleman

Medicine & Health / Neuroscience

created 14 hours ago | popularity not rated yet | comments 0

Estrogen seems to act like a middleman in its positive effect on the brain, raising the possibility that future drugs may bypass the carcinogenic hormone altogether while reaping its benefits.