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271 articles from TUESDAY 3.1.2012
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TUESDAY 3. JANUARY, 2012
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For nearly a decade now, two university consortia in the United States have been...
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Tonight's meteor shower promises to be one of the brightest in the sky – but you might have to set your alarm to catch it
If you happen to suffer from insomnia, tonight's the one time you can count your lucky stars – right as they fall from the sky.
The Quadrantid meteor shower, the first of 2012, will be in full swing between 3am and dawn Wednesday morning eastern time. If you're unlucky enough to be a sound sleeper, you might want to set your alarm to catch nature's fireworks display.
The show will be brief, but intense – on a clear night the Quadrantid ranks among the most spectacular meteor showers. With good visibility, enterprising early risers could catch between 60 and 200 meteor streaks an hour.
Discovered in the 1830s by Adolphe Quetelet of the Brussels Observatory and named after an obsolete constellation, the Quadrantid meteor shower occurs regularly, every time our planet passes through the narrow trail of debris left by an asteroid called 2003 EH1. The silvery-streaks of the Quadrantid shower can be tough to see when the moon is bright and the sky is cloudy.
Fortunately, star gazer have a cool, clear night to look forward to. So bundle up and enjoy the show.
guardian.co.uk © 2012 Guardian News and Media Limited or its affiliated companies. All rights reserved. | Use of this content is subject to our Terms & Conditions | More Feeds -
A comet many people thought would be destroyed when it brushed by the Sun on 16 December, Comet Lovejoy has provided a memorable show for observers in the southern hemisphere. So much so, that it has already been called the great Christmas comet of 2011.
Discovered by the Australian amateur astronomer Terry Lovejoy on 27th November, the comet sprouted a bright tail as it plunged towards perihelion and into the sights of five different solar-observation spacecraft. As the comet's icy core raced in a tight arc around the Sun, it appeared to leave its tail suspended in the Sun's atmosphere, only for a spectacular new one to develop as Comet Lovejoy began to pull away from the Sun over the following days.
And what a tail. Southern observers first glimpsed it as a searchlight beam reaching up into the dawn twilight. Nasa astronaut Dan Burbank, above the Earth's atmosphere in his role as commander of the International Space Station, may have had a grandstand view, but before long ground-based observers were reporting as much as 30° of tail.
It was fading by Christmas and by the New Year it was less intense than the Milky Way but up to 45° long. The comet is still drawing nearer and passes the Earth at a range of 75 million km on Saturday, 7th January, as it sweeps within 2° of the south celestial pole. Sadly, observers in Britain have no chance of seeing it. Calculations suggest, though, that it may return in 600 years or so.
guardian.co.uk © 2012 Guardian News and Media Limited or its affiliated companies. All rights reserved. | Use of this content is subject to our Terms & Conditions | More Feeds -
Among obese individuals, having bariatric surgery was associated with a reduced long-term incidence of cardiovascular deaths and events such as heart attack and stroke, according to a study in the January 4 issue of JAMA.
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Hydrogen sulfide, a gas notorious for its rotten-egg smell, may have redeeming qualities after all. It reduces high glucose-induced production of scarring proteins in kidney cells, researchers from The University of Texas Health Science Center San Antonio report in the Journal of Biological Chemistry. The paper is scheduled for print publication in early 2012.
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By manipulating the way bacteria "talk" to each other, researchers at Texas A&M University have achieved an unprecedented degree of control over the formation and dispersal of biofilms a finding with potentially significant health and industrial applications, particularly to bioreactor technology.
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Children with a rare, life-threatening disease that is the most common cause of neonatal liver failure biliary atresia better tolerate liver transplants from their mothers than from their fathers, according to a UCSF-led study.
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A new study led by the University of Colorado Boulder could be a wake-up call for parents of toddlers: Daytime naps for your kids may be more important than you think.
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Nintendo on Tuesday announced that it sold more than four million of its sophisticated 3DS handheld videogame gadgets in the United States by end of 2011.
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NJIT Professor Gordon Thomas and NJIT Research Professor Reginald Farrow, both in the department of physics, and NJIT alumnus Sheng Liu, formerly a doctoral student of both researchers and now an engineer at a biotech company, were awarded a patent today for the NJIT SmartShunt, a unique device to help patients with brain injuries.
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Colin Saldanha, a biology professor at American University in Washington, D.C., has always been intrigued by the hormone estrogen. Specifically, how the hormone that does so much (for example, it promotes sexual behavior in women but can also increase susceptibility to seizures) does not cause major cross circuit meltdowns.
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Doctors have known for years that the incidence of deadly liver cancer is on the rise, but what is causing that trend has remained a mystery. Two recent Mayo Clinic studies published in the January issue of Mayo Clinic Proceedings offer a clearer picture of the rise of hepatocellular carcinoma (HCC), or liver cancer, which has tripled in the U.S. in the last three decades and has a 10 to 12 percent five-year survival rate when detected in later stages.
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Some individuals with severe aortic stenosis also known as narrowing of the aortic valve in the heart who are not well enough to undergo open heart surgery have a new treatment option thanks to a new procedure now available in Kentucky from University of Louisville physicians at Jewish Hospital.
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Oregon's groundbreaking Physician Orders for Life Sustaining Treatment program (POLST) is featured in the latest edition of the Journal of The American Medical Association. The program, which was created by health care professionals two decades ago in an effort to ensure the wishes of those with advanced illness are followed, has now spread to 34 states around the country.
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Patients treated for acute heart attacks in the United States are readmitted within 30 days more often than in other countries, a finding explained in part by significantly shorter initial hospitalizations, according to an international study led by researchers at Duke University Medical Center.
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In a study conducted among 25 healthy individuals living in a controlled setting who were randomized to overconsumption of different levels of protein diets, those consuming the low-protein diet had less weight gain compared to those consuming normal and high protein diets, and calories alone, and not protein appeared to contribute to an increase in body fat, according to a study in the January 4 issue of JAMA. The researchers also found that protein did contribute to changes in energy expenditure and lean body mass.
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Pepsi Co.'s claim that a mouse trapped in a can of Mountain Dew would eventually dissolve doesn't hold water with Canadian food experts.
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LiveScience.com - Scientists doing their first exploring of deep-sea vents in the Antarctic have uncovered a world unlike anything found around other hydrothermal vents, one populated by new species of anemones, predatory sea stars, and piles of hairy-chested yeti crabs.
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A chance discovery reveals a potential threat to hives, but scope of problem is unknown
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A fly parasite that latches onto honeybees causing them to abandon their hives and die after a bout of disoriented zombie-like behaviour could be a potential threat to honeybee colonies across North America, according to researchers at San Francisco State University.
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British scientists have discovered a "lost world" of new species of yeti crab, starfish, barnacles, sea anemones — and potentially an octopus — on the sea floor near Antarctica.
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A "Yeti" crab, seven-legged seastar and a pale octopus discovered around the vent are reshaping theories on marine life.
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A Montreal man who crossed the U.S. border using a scan of his passport saved on his iPad says he hopes the practice will become commonplace in the near future.
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The Christian Science Monitor - British oil giant BP is asking a federal judge to force Halliburton to pay for all recovery costs resulting from the catastrophic 2010 oil spill in the Gulf of Mexico.
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Among obese individuals, having bariatric surgery was associated with a reduced long-term incidence of cardiovascular deaths and events such as heart attack and stroke, according to a new study.
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NASA (22. 2, 17:36)
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