News tagged with proceedings of the national academy of sciences

Today's environment influences behavior generations later: research

Researchers at The University of Texas at Austin and Washington State University have seen an increased reaction to stress in animals whose ancestors were exposed to an environmental compound generations earlier. The findings, ...

Biology / Plants & Animals

created May 21, 2012 | popularity 4.4 / 5 (5) | comments 2 | with audio podcast

Study finds modern dog breeds genetically disconnected from ancient ancestors

Cross-breeding of dogs over thousands of years has made it extremely difficult to trace the ancient genetic roots of today's pets, according to a new study led by Durham University.

Biology / Plants & Animals

created May 21, 2012 | popularity 4.7 / 5 (7) | comments 1 | with audio podcast

Squid ink from Jurassic period identical to modern squid ink, study shows

(Phys.org) -- An international team of researchers, including a University of Virginia professor, has found that two ink sacs from 160-million-year-old giant squid fossils discovered two years ago in England ...

Other Sciences / Archaeology & Fossils

created May 21, 2012 | popularity 5 / 5 (1) | comments 0 | with audio podcast

Ultrasensitive biosensor promising for medical diagnostics

(Phys.org) -- Researchers have created an ultrasensitive biosensor that could open up new opportunities for early detection of cancer and "personalized medicine" tailored to the specific biochemistry of individual ...

Nanotechnology / Nanophysics

created May 15, 2012 | popularity 5 / 5 (1) | comments 0 | with audio podcast

Pay-what-you-want choices appear to be linked to self image

(Phys.org) -- Panera, the national restaurant chain most famous for its bread, has been in the news of late because they’ve decided to test the concept of allowing customers to pay whatever they want for bread, sandwiches ...

Other Sciences / Social Sciences

created Apr 24, 2012 | popularity 4.9 / 5 (7) | comments 4 | with audio podcast report

Computing the best high-resolution 3-D tissue images

Real-time, 3-D microscopic tissue imaging could be a revolution for medical fields such as cancer diagnosis, minimally invasive surgery and ophthalmology. University of Illinois researchers have developed ...

Physics / General Physics

created Apr 23, 2012 | popularity 5 / 5 (5) | comments 0 | with audio podcast

Study reveals how ancient viruses became genomic 'superspreaders'

Scientists have uncovered clues as to how our genomes became riddled with viruses. The study, supported by the Wellcome Trust, reveals important information about the so–called 'dark matter' of our genome.

Biology / Cell & Microbiology

created Apr 23, 2012 | popularity 4.8 / 5 (4) | comments 0 | with audio podcast

Escalating arms race: Predatory sea urchins drive evolution

(Phys.org) -- Nature teems with examples of evolutionary arms races between predators and prey, with the predator species gradually evolving a new mode of attack for each defensive adaptation that arises in ...

Biology / Plants & Animals

created Apr 17, 2012 | popularity 5 / 5 (1) | comments 0 | with audio podcast

Orangutan nests reveal engineering expertise

An innovative study looking at how orangutans build their nests has revealed that the apes use a high level of engineering know-how.

Biology / Plants & Animals

created Apr 17, 2012 | popularity 4.5 / 5 (4) | comments 5 | with audio podcast

Study dusts sugar coating off little-known regulation in cells

In Alzheimer's disease, brain neurons become clogged with tangled proteins. Scientists suspect these tangles arise partly due to malfunctions in a little-known regulatory system within cells. Now, researchers have dramatically ...

Chemistry / Biochemistry

created Apr 16, 2012 | popularity 5 / 5 (2) | comments 1 | with audio podcast

Bering Strait may be global temperature stabilizer

(Phys.org) -- A diverse group of climate researchers has found after running computer simulations that the strait that separates North America and Russia might be serving as a global temperature stabilizer. ...

Space & Earth / Earth Sciences

created Apr 10, 2012 | popularity 4.5 / 5 (10) | comments 61 | with audio podcast report

Human ancestors used fire one million years ago, archaeologist find

An international team led by the University of Toronto and Hebrew University has identified the earliest known evidence of the use of fire by human ancestors. Microscopic traces of wood ash, alongside animal ...

Other Sciences / Archaeology & Fossils

created Apr 02, 2012 | popularity 4.8 / 5 (43) | comments 2 | with audio podcast

Researchers find simple and cheap way to mass-produce graphene nanosheets

Mixing a little dry ice and a simple industrial process cheaply mass-produces high-quality graphene nanosheets, researchers in South Korea and Case Western Reserve University report.

Nanotechnology / Nanomaterials

created Mar 26, 2012 | popularity 5 / 5 (33) | comments 22 | with audio podcast

'Buckliball' opens new avenue in design of foldable engineering structures (w/ video)

(PhysOrg.com) -- Motivated by the desire to determine the simplest 3-D structure that could take advantage of mechanical instability to collapse reversibly, a group of engineers at MIT and Harvard University ...

Technology / Engineering

created Mar 26, 2012 | popularity 5 / 5 (10) | comments 1 | with audio podcast

Study supports theory of extraterrestrial impact

A 16-member international team of researchers that includes James Kennett, professor of earth science at UC Santa Barbara, has identified a nearly 13,000-year-old layer of thin, dark sediment buried in the ...

Space & Earth / Earth Sciences

created Mar 05, 2012 | popularity 4.7 / 5 (23) | comments 38 | with audio podcast

Proceedings of the National Academy of Sciences

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.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.

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