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Laser-cooling brings large object near absolute zero
04-05-2007 · Massachusetts Institute of Technology (MIT)Using a laser-cooling technique that could one day allow scientists to observe quantum behavior in large objects, MIT researchers have cooled a coin-sized object to within one degree of absolute zero.
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- Super-cool MIT work could expose quantum behavior
04-06-2007 · EurekAlert!
Using a laser-cooling technique that could one day allow scientists to observe quantum behavior in large objects, MIT researchers have cooled a coin-sized object to within one degree of absolute zero.
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- Ultrafast optical shutter is switched entirely by laser light
12-06-2007 · EurekAlert!
It's a rare case of all light and no heat: A new study reports that a laser can be used to switch a film of vanadium dioxide back and forth between reflective and transparent states without heating or cooling it.
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- Eye Doctor Says Laser Surgery Safer Than Contacts
10-12-2006 · ScienceDaily
Traditional assumptions have held that contact lenses are safer than laser surgery to correct vision problems. Now, an Oregon Health & Science University Casey Eye Institute physician, comparing data from several recent studies, has found that belief may not be true. William Mathers, M.D., reviewed several large, peer-reviewed studies and found a greater chance of suffering vision loss from contact lenses than from laser vision correction surgery, also known as "refractive" surgery.
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- Research team says extraterrestrial impact to blame for Ice Age extinctions
09-24-2007 · EurekAlert!
A team of international researchers, including two Northern Arizona University geologists, reports evidence that a comet or low-density object barreling toward Earth exploded in the upper atmosphere and triggered a devastating swath of destruction that wiped out most of the large animals, their habitat and humans of the Ice Age 13,000 years ago.
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- Supernova remnants dance in the LMC
01-10-2008 · EurekAlert!
The Gemini South Multi-Object Spectograph (GMOS) recently captured a dramatic image of a vast cloud complex named DEM L316 located in the Large Magellanic Cloud. The peanut-shaped nebula appears to be a single object, but the latest research indicates that it is really comprised of two distinct gas and dust clouds formed by different types of supernova explosions.
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- Compact, wavelength-on-demand Quantum Cascade Laser chip offers ultra-sensitive chemical sensing
12-03-2007 · EurekAlert!
Engineers from Harvard University have demonstrated a highly versatile, compact and portable Quantum Cascade Laser sensor for the fast detection of a large number of chemicals, ranging from infinitesimal traces of gases to liquids, by broad tuning of the emission wavelength. The potential range of applications is huge, including homeland security, medical diagnostics such as breadth analysis, pollution monitoring, and environmental sensing of the greenhouse gases responsible for global warming.
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- Social change relies more on the easily influenced than the highly influential
11-12-2007 · EurekAlert!
An important new study appearing in the December issue of the Journal of Consumer Research finds that it is rarely the case that highly influential individuals are responsible for bringing about shifts in public opinion. Instead, Duncan J. Watts (Columbia University) and Peter Sheridan Dodds (University of Vermont), find that it is the presence of large numbers of "easily influenced" people who bring about major shifts by influencing other easy-to-influence people.
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- The growing-up of a star
01-29-2008 · EurekAlert!
Using ESO's Very Large Telescope Interferometer, astronomers have probed the inner parts of the disc of material surrounding a young stellar object, witnessing how it gains its mass before becoming an adult.
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- The onchocerciasis parasite showing signs of resistance
01-31-2008 · EurekAlert!
Onchocerciasis is a parasitic infection brings about skin lesions and severe eye damage that might lead to irreversible blindness. A study published recently by IRD scientists, who monitored a cohort of patients treated with ivermectin, the sole drug used for curing infected people, found fertility-change associated genetic selection in parasite populations. Although the results do not prove with absolute certainty that Onchocerca volvulus is steadily becoming resistance to ivermectin, they do show that certain parasites are more sensitive to treatment than others.
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- The planet, the galaxy and the laser
08-03-2007 · EurekAlert!
On the night of July 21, ESO astronomer Yuri Beletsky took images of the night sky above Paranal, the 2600-meter high mountain in the Chilean Atacama Desert home to ESO's Very Large Telescope. The amazing images bear witness to the unique quality of the sky, revealing not only the Milky Way in all its splendour but also the planet Jupiter and the laser beam used at Yepun, one of the 8.2-meter telescopes that make up this extraordinary facility.
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