In quantum channels, zero plus zero can equal non-zero

In quantum channels, zero plus zero can equal non-zero

Physics / General Physics

created Oct 06, 2008 | popularity 4.6 / 5 (62) | comments 12

(PhysOrg.com) -- Physicists have discovered a strange characteristic of quantum communication channels. If two quantum channels each have a transmission capacity of zero, they may still have a nonzero capacity ...


Fuzziness on the road to physics' grand unification theory

Fuzziness on the road to physics' grand unification theory

Physics / General Physics

created Oct 06, 2008 | popularity 3.6 / 5 (64) | comments 8

Leave it to hypothesized gravity to weigh down what physicists have thought for 30 years. If theoretical physicists, led by the University of Oregon's Stephen Hsu, are right, the idea that nature's forces ...


Occasional memory loss tied to lower brain volume

Medicine & Health / Other

created Oct 06, 2008 | popularity 3.6 / 5 (29) | comments 4

People who occasionally forget an appointment or a friend's name may have a loss of brain volume, even though they don't have memory deficits on regular tests of memory or dementia, according to a study published in the October ...


Hydrogen Cars

New material could speed development of hydrogen powered vehicles

Nanotechnology / Nanomaterials

created Oct 06, 2008 | popularity 4.1 / 5 (54) | comments 21

Researchers in Greece report design of a new material that almost meets the U.S. Department of Energy (DOE) 2010 goals for hydrogen storage and could help eliminate a key roadblock to practical hydrogen-powered ...


Visualizing election polls

Visualizing election polls

Technology / Computer Sciences

created Oct 06, 2008 | popularity 4.1 / 5 (7) | comments 0

Do you want to know the percentage of white women who support vice presidential candidate Sarah Palin? What about college-educated versus high school-educated white women? Or those who also hunt?


Using a fan during sleep lowers SIDS risk by 72 percent

Medicine & Health / Other

created Oct 06, 2008 | popularity 4.6 / 5 (28) | comments 5

Infants who slept in a bedroom with a fan ventilating the air had a 72 percent lower risk of Sudden Infant Death Syndrome compared to infants who slept in a bedroom without a fan, according to a new study by the Kaiser Permanente ...


Landmark discovery of 'engine' that drives cell movement

Biology /

created Oct 06, 2008 | popularity 4.7 / 5 (7) | comments 0

This research by Thomas Leung, Ph.D., and his team in the GSK-IMCB Group at the Institute of Molecular and Cell Biology (IMCB), under Singapore's Agency for Science, Technology and Research, is fundamental to the understanding ...


CERN openlab boosts the performance of LHC computing

Technology / Computer Sciences

created Oct 06, 2008 | popularity 4 / 5 (4) | comments 3

The LHC Grid Fest, held last Friday at CERN in Geneva, Switzerland, and at several sites around the world, commemorated the readiness of the Worldwide LHC Computing Grid (WLCG). At full capacity, the Large Hadron Collider ...


Playing Pinball with Atoms

Playing Pinball with Atoms

Nanotechnology / Nanophysics

created Oct 06, 2008 | popularity 4.4 / 5 (20) | comments 0

With nanotechnology yielding a burgeoning menagerie of microscopic pumps, motors, and other machines for potential use in medicine and industry, here is one good question: How will humans turn those devices ...


Artist's Impression of NASA's IBEX

NASA spacecraft ready to explore outer solar system

Space & Earth / Space Exploration

created Oct 06, 2008 | popularity 4.5 / 5 (15) | comments 1

The first NASA spacecraft to image and map the dynamic interactions taking place where the hot solar wind slams into the cold expanse of space is ready for launch Oct. 19. The two-year mission will begin from ...


Researchers document world's mammals in crisis

Space & Earth / Environment

created Oct 06, 2008 | popularity 3.6 / 5 (30) | comments 76

From majestic African elephants to tiny and often unappreciated rodents, mammals on Earth are in a state of crisis. One in four mammal species on Earth is being pushed to extinction, according to the Global Mammal Assessment, ...


Lab-on-Bead Development

Nanoscopic screening process to speed drug discovery

Nanotechnology / Bio & Medicine

created Oct 06, 2008 | popularity 4.1 / 5 (9) | comments 0

Researchers at Wake Forest University are using nanotechnology to search for new cancer-fighting drugs through a process that could be up to 10,000 times faster than current methods.


Most Alaskan glaciers retreating, thinning, and stagnating

Space & Earth / Environment

created Oct 06, 2008 | popularity 3.3 / 5 (19) | comments 1

Most glaciers in every mountain range and island group in Alaska are experiencing significant retreat, thinning or stagnation, especially glaciers at lower elevations, according to a new book published by the U.S. Geological ...


Early-stage gene transcription creates access to DNA

Medicine & Health / Genetics

created Oct 06, 2008 | popularity 5 / 5 (4) | comments 0

A gene contained in laboratory yeast has helped an international team of researchers uncover new findings about the process by which protein molecules bind to control sequences in genes in order to initiate gene expression, ...


Lichens function as indicators of nitrogen pollution in forests

Space & Earth / Environment

created Oct 06, 2008 | popularity 3.3 / 5 (3) | comments 1

Scientists have found lichens can give insight into nitrogen air pollution effects on Sierra Nevada and San Bernardino mountain ecosystems, and protecting them provides safeguards for less sensitive species.




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