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Latest Proceedings of the National Academy of Sciences Stories

2014-03-04 16:23:09

Researchers at New Zealand's University of Otago are helping to clear up an enduring mystery regarding the composition of the Earth's atmosphere. They have discovered the microbial soil processes that help ensure that the explosive gas hydrogen remains at trace levels. In recent decades it was found that around four-fifths of all hydrogen released into the air is rapidly removed through soil activity, but exactly what is recycling it, and how, has remained unclear. Now, Otago scientists...

2014-03-04 16:03:43

Researchers at New York University and the University of Texas at Austin have discovered that carbohydrates serve as identifiers for cancer cells. Their findings, which appear in the journal Proceedings of the National Academy of Sciences, show how these molecules may serve as signals for cancer and explain what's going on inside these cells, pointing to new ways in which sugars function as a looking glass into the workings of their underlying structures. "Carbohydrates can tell us a lot...

2014-03-04 13:42:21

People's racial prejudices are influenced by where they live, reports a new study led by Oxford University psychologists. The researchers found that levels of racial prejudice among white people drop significantly when they live in ethnically mixed communities, even when they do not have direct contact with minorities. Simply seeing white strangers interacting positively with ethnic minorities is enough to reduce racial prejudice. The researchers have called this positive effect...

2014-02-18 13:43:42

High levels of the stress hormone cortisol may contribute to the risk aversion and 'irrational pessimism' found among bankers and fund managers during financial crises, according to a new study. The study's authors say that risk takers in the financial world exhibit risk averse behavior during periods of extreme market volatility – just when a crashing market most needs them to take risks – and that this change in their appetite for risk may be "physiologically-driven", specifically by...

2014-01-21 10:24:45

For first time, PARP-1 enzyme, Sidekick-1 gene implicated in enhancing brain reward system Researchers from the Icahn School of Medicine at Mount Sinai have identified a new molecular mechanism by which cocaine alters the brain's reward circuits and causes addiction. Published online in the journal Proceedings of the National Academy of Sciences by Dr. Eric J. Nestler, MD, PhD, and colleagues, the preclinical research reveals how an abundant enzyme and synaptic gene affect a key reward...

2013-12-30 23:00:54

Cold-sensitive mangrove forests have expanded dramatically along Florida’s Atlantic Coast as the frequency of killing frosts has declined, according to a new study based on 28 years of satellite data from the University of Maryland and the Smithsonian Environmental Research Center in Edgewater, Maryland. College Park, Md (PRWEB) December 30, 2013 Cold-sensitive mangrove forests have expanded dramatically along Florida’s Atlantic Coast as the frequency of killing frosts has declined,...

2013-11-26 10:23:29

Retroviruses are important pathogens capable of crossing species barriers to infect new hosts, but knowledge of their evolutionary history is limited. By mapping endogenous retroviruses (ERVs), retroviruses whose genes have become part of the host organism's genome, researchers at Uppsala University, Sweden, can now provide unique insights into the evolutionary relationships of retroviruses and their host species. The findings will be published in a coming issue of Proceedings of the National...

2013-11-04 14:15:08

Scientists find that key gene activates muscle growth For decades, scientists have searched for treatments for myopathies — genetic muscular diseases such as muscular dystrophy and ALS, also called Lou Gehrig's disease. Now, an interdisciplinary team of researchers from Arizona State and Stanford Universities, and the University of Arizona, has discovered a new avenue to search for treatment possibilities. The team's research findings are featured in an article in this week's early...

2013-10-29 11:53:55

Researchers at Oregon State University and the University of Oregon today announced a scientific advance that has eluded researchers for more than 100 years – a platform to fully study and understand the aqueous chemistry of aluminum, one of the world's most important metals. The findings, reported in Proceedings of the National Academy of Sciences, should open the door to significant advances in electronics and many other fields, ranging from manufacturing to construction, agriculture...

2013-10-23 11:26:11

A team of scientists at Duke Medicine and Memorial Sloan-Kettering Cancer Center has created an artificial protein coupled with a sugar molecule that mimics a key site on the outer coat of HIV where antibodies can bind to neutralize a wide variety of HIV strains. Reported during the week of Oct. 21, 2013, in the journal Proceedings of the National Academy of Sciences, the finding provides a potential new strategy in vaccine development to elicit the broadly neutralizing antibodies...


Latest Proceedings of the National Academy of Sciences Reference Libraries

Proceedings of the National Academy of Sciences
2012-05-29 11:19:42

The Proceedings of the National Academy of Sciences of the United States of America (PNAS) is a peer-reviewed scientific journal established in 1914 as the official journal of the US National Academy of Sciences. The first managing editor of the journal was mathematician Edwin Bidwell Wilson. As of May 2012, the editor-in-chief is Inder M. Verma. PNAS is published weekly in print, and daily online in PNAS Early Edition. The first issue of PNAS was published in 1915, and the journal...

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Word of the Day
cacodemon
  • An evil spirit; a devil.
  • A nightmare.
  • In astrology, the twelfth house of a scheme or figure of the heavens: so called from its signifying dreadful things, such as secret enemies, great losses, imprisonment, etc.
'Cacodemon' comes from a Greek term meaning 'evil genius.'
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