Light-emitting transistor uses light to transfer an electrical signal
Nov 01, 2006 |
4.5 / 5 (107) |
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In one of the early discoveries of the current "silicon electrophotonics era," scientists from Hitachi, Ltd. in Tokyo have built a light-emitting transistor (LET) that transfers, detects and controls an electrical ...
Single Molecule Makes Obese Mice Healthy
Nov 01, 2006 |
4.8 / 5 (39) |
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Researchers have used a single compound to increase the lifespan of obese mice, and found that the drug reversed nearly all of the changes in gene expression patterns found in mice on high calorie diets—some ...
All Optical Solution: Cruising the Superhighway on a Beam of Light
Nov 01, 2006 |
4.1 / 5 (44) |
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The Internet is often called the information superhighway, but the real superhighway is the optical fiber that connects computers around the world at the speed of light, according to John Badding, Penn State ...
Researchers teach computers how to name images by 'thinking'
Technology / Computer Sciences
Nov 01, 2006 |
3.2 / 5 (40) |
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Penn State researchers have "taught" computers how to interpret images using a vocabulary of up to 330 English words, so that a computer can describe a photograph of two polo players, for instance, as "sport," "people," "horse," ...
'Gravity Waves' in Atmosphere May Strengthen Tornadoes
Space & Earth / Earth Sciences
Nov 01, 2006 |
3.8 / 5 (32) |
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Giant waves of air rippling through the atmosphere might spin up or intensify tornadoes when they interact with powerful thunderstorms.
Revealing the mysteries of galaxy formation
Nov 01, 2006 |
4.7 / 5 (24) |
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As the AKARI satellite nears completion of its All Sky Survey, it has released two stunning images of the Large Magellanic Cloud. AKARI is an infrared astronomical satellite from the Japan Aerospace Exploration ...
Ancestor of Modern Trees Preserves Record of Ancient Climate Change
Space & Earth / Earth Sciences
Nov 01, 2006 |
4.5 / 5 (24) |
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About 350 million years ago, at the boundary of the Devonian and Carboniferous ages, the climate changed. There was no one around to record it, but there are records nonetheless in the rocks deposited by glaciers ...
Anti-cancer virus kills brain cancer cells
Nov 01, 2006 |
4.7 / 5 (22) |
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Canadian researchers have found a cancer-fighting virus called VSV kills the most malignant form of brain cancer in mice.
Spiders’ unspun silk flows easier the faster it is sheared
Nov 01, 2006 |
4.6 / 5 (20) |
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Oxford researchers have discovered that spiders and silkworms spin their fibres using methods that are not all that different from commercial spinning.
First global analysis of sexual behaviour
Nov 01, 2006 |
3.6 / 5 (25) |
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A groundbreaking study, which provides the first ever comprehensive analysis of sexual behaviour around the world, is published today in the Lancet, as part of a major series on sexual and reproductive health.
Researchers test antibacterial effects of healing clays
Nov 01, 2006 |
4.2 / 5 (18) |
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Clay is most commonly associated with the sublime experience of the European spa where visitors have been masked, soaked and basted with this touted curative since the Romans ruled. If ASU geochemist Lynda Williams and microbiologist ...
Link Between Ovarian Cancer, Vitamin D Status Seen Worldwide
Nov 01, 2006 |
4.3 / 5 (17) |
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Using newly available data on worldwide cancer incidence, researchers at the Moores Cancer Center at UCSD have shown a clear association between deficiency in exposure to sunlight, specifically ultraviolet B (UVB), and ovarian ...
Fossil Is Missing Link in Elephant Lineage
Other Sciences / Archaeology & Fossils
Nov 01, 2006 |
4.5 / 5 (16) |
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A pig-sized, tusked creature that roamed the earth some 27 million years ago represents a missing link between the oldest known relatives of elephants and the more recent group from which modern elephants descended, ...
Computer scientists track prediction markets in run-up to US elections
Technology / Computer Sciences
Nov 01, 2006 |
3.7 / 5 (16) |
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As voters prepare for the polls Nov. 7, computer scientists at the University of Chicago and Yahoo! Research are calling attention to the uncanny track record that an Irish securities trading market has for accurately predicting ...
Physicists study remote quantum networks
Nov 01, 2006 |
4.1 / 5 (13) |
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U.S. physicists say the operations of two remote quantum systems can be synchronized so changes in one system are conditional on what occurs in the other.
