Satellites approach the Shannon limit
Oct 28, 2008 |
4.5 / 5 (43) |
1
(PhysOrg.com) -- Satellites are achieving unparalleled efficiency with a new protocol, DVB-S2. The performance of DVB-S2 satellite systems is very close to the theoretical maximum, defined by the Shannon Limit. That efficiency ...
Nanoparticles Target Multiple Cancer Genes, Shrink Tumors More Effectively
Nanotechnology / Bio & Medicine
Oct 28, 2008 |
4.7 / 5 (37) |
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(PhysOrg.com) -- Nanoparticles filled with small interfering RNA (siRNA) molecules targeting two genes that trigger melanoma have shown that they can inhibit the development of melanoma, the most dangerous type of skin cancer. ...
Reconnaissance Orbiter Reveals Details of a Wetter Mars
Space & Earth / Space Exploration
Oct 28, 2008 |
4.3 / 5 (39) |
18
(PhysOrg.com) -- NASA's Mars Reconnaissance Orbiter has observed a new category of minerals spread across large regions of Mars. This discovery suggests that liquid water remained on the planet's surface a ...
The great cosmic challenge
Oct 28, 2008 |
4.3 / 5 (32) |
12
(PhysOrg.com) -- Today cosmologists are challenging the world to solve a compelling statistical problem, to bring us closer to understanding the nature of dark matter and energy which makes up 95 per cent of the ‘missing’ ...
New cell division mechanism discovered
Biology /
Oct 28, 2008 |
4.7 / 5 (22) |
0
A novel cell division mechanism has been discovered in a microorganism that thrives in hot acid. The finding may also result in insights into key processes in human cells, and in a better understanding of the main evolutionary ...
Psychological study reveals that red enhances men's attraction to women
Medicine & Health / Psychology & Psychiatry
Oct 28, 2008 |
3.8 / 5 (26) |
8
(PhysOrg.com) -- A groundbreaking study by two University of Rochester psychologists to be published online Oct. 28 by the Journal of Personality and Social Psychology adds color—literally and figuratively—to the ag ...
Microsoft Gets Patent for Patently Offensive Audio Content
Oct 28, 2008 |
3.7 / 5 (24) |
19
(PhysOrg.com) -- Microsoft recently obtained a patent designed to create an Automatic Censorship of Audio Data For Broadcast . The invention is intended to act as a filter for live broadcasts where it is impracticable to delete or make inaudible certai ...
Silicon optical fiber made practical
Oct 28, 2008 |
4.7 / 5 (18) |
0
Scientists at Clemson University for the first time have been able to make a practical optical fiber with a silicon core, according to a new paper published in the current issue of the Optical Society's open-access journal, ...
Researchers discover new way to attack some forms of leukemia
Oct 28, 2008 |
4.9 / 5 (17) |
1
Each year, some 29,000 adults and 2,000 children are diagnosed with leukemia, a form of cancer that is caused by the abnormal production of white blood cells in the bone marrow. Current treatments rely primarily on killing ...
Scientists probe Antarctic glaciers for clues to past and future sea level
Space & Earth / Earth Sciences
Oct 28, 2008 |
3.6 / 5 (18) |
1
Scientists from the U.S., U.K. and Australia have teamed up to explore two of the last uncharted regions of Earth, the Aurora and Wilkes Subglacial Basins, immense ice-buried lowlands in Antarctica with a combined area the ...
A high-fat diet could promote the development of Alzheimer's
Oct 28, 2008 |
4.3 / 5 (14) |
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A team of Université Laval researchers has shown that the main neurological markers for Alzheimer's disease are exacerbated in the brains of mice fed a diet rich in animal fat and poor in omega-3s. Details of the study—which ...
Soapy property improves electron mobility in organic semiconductors
Oct 28, 2008 |
4.5 / 5 (13) |
0
(PhysOrg.com) -- Organic semiconductors are a main component in a variety of future organic electronics, such as flexible flat-panel displays, inexpensive solar cells, and other unique devices. Because of ...
When You Look at a Face, You Look Nose First
Medicine & Health / Psychology & Psychiatry
Oct 28, 2008 |
4.2 / 5 (13) |
0
(PhysOrg.com) -- While general wisdom says that you look at the eyes first in order to recognize a face, UC San Diego computer scientists now report that you look at the nose first.
Study helps clarify role of soil microbes in global warming
Oct 28, 2008 |
4 / 5 (12) |
3
(PhysOrg.com) -- Current models of global climate change predict warmer temperatures will increase the rate that bacteria and other microbes decompose soil organic matter, a scenario that pumps even more heat-trapping carbon ...
Arctic sea ice thinning at record rate
Space & Earth / Earth Sciences
Oct 28, 2008 |
3.3 / 5 (14) |
2
(PhysOrg.com) -- The thickness of sea ice in large parts of the Arctic declined by as much as 19% last winter compared to the previous five winters, according to data from ESA's Envisat satellite.
