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343 articles from WEDNESDAY 4.1.2012
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WEDNESDAY 4. JANUARY, 2012
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20:26
Blog - Would You Pay $8,000 for a TV?
Ultrathin TVs won't come cheap. But mere flatscreens bore us.
One Christmas Eve in the mid-13th century, a devout woman named Chiara Offreduccio found herself too ill to attend the Mass in her town of Assisi. Confined to her convent room, far from the church, the woman began to hear fervent chants and to see images of the nativity, "as though she were present in person" at the Mass, as Pope Pius XII would
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20:25
Green Blog: A Photographic Blast From the Past
The National Archives unearths thousands of photographs commissioned by the fledgling Environmental Protection Agency in the 1970's, when the country was shifting from the untrammeled exploitation of natural resources to a more aspirational attitude.
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20:24
'Nanowiggles:' Scientists discover graphene nanomaterials with tunable functionality in electronics
Electronics are getting smaller and smaller, flirting with new devices at the atomic scale. However, many scientists predict that the shrinking of our technology is reaching an end. Without an alternative to silicon-based technologies, the miniaturization of our electronics will stop. One promising alternative is graphene — the thinnest material known to man. Pure graphene is not a semiconductor, but it can be altered to display exceptional electrical behavior. Finding the best graphene-based nanomaterials could usher in a new era of nanoelectronics, optics, and spintronics (an emerging technology that uses the spin of electrons to store and process information in exceptionally small electronics). -
20:24For more than a quarter of a century, Jerald "Snook" Pataky's research in the University of Illinois Sweet Corn Hybrid Disease Nursery has been helping growers make important decisions to increase their profitability.
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20:24The American Cancer Society's annual cancer statistics report shows that between 2004 and 2008, overall cancer incidence rates declined by 0.6% per year in men and were stable in women, while cancer death rates decreased by 1.8% per year in men and by 1.6% per year in women.
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20:24A recent analysis led by ecologist Bethany Bradley at the University of Massachusetts Amherst suggests that climate change predicted for the United States will boost demand for imported drought- and heat-tolerant landscaping plants from Africa and the Middle East. This greatly increases the risk that a new wave of invasives will overrun native ecosystems in the way kudzu, Oriental bittersweet and purple loosestrife have in the past, members of the international team say.
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20:24(PhysOrg.com) -- Tall order in energy storage: Find the right technology that delivers the holy grail of the grid, a viable solution for energy storage (tough). A startup from Easton, Pennsylvania claims it’s on the fastest path. Eos Energy Storage has a formula for zinc-air batteries that it thinks can eventually be the dominant technology for use in the grid.
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20:24Results from a recent study show that novel vaccine combinations can provide partial protection against infection by Simian Immunodeficiency Virus (SIV) in rhesus monkeys. In addition, in the animals that became infected, the optimal vaccine combinations also substantially reduced the amount of virus in the blood. Results from the studies were published online today in the journal Nature.
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20:24Is obesity in infants "programmed" in the womb? Previously, researchers assumed that consumption of "bad" fats during pregnancy contribute to excessive infant adipose tissue growth and that "good" omega-3 fatty acids prevent expansive adipose tissue development. An study run by the Technische Universität München showed no evidence to support this "perinatal programming" theory.
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20:24Therapeutic hypothermia has been proven to reduce mortality and improve neurologic outcomes after a heart attack, yet it was rarely used in a sample of more than 26,000 patients, according to a study published in Therapeutic Hypothermia and Temperature Management, a peer-reviewed journal published by Mary Ann Liebert, Inc.
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20:24The incidence and prevalence of inflammatory bowel disease (IBD) are increasing with time and in different regions around the world, according to a new study in Gastroenterology, the official journal of the American Gastroenterological Association.
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20:24Apple on Wednesday announced that the latest version of its hot-selling iPhones will be released in China and 21 other countries on January 13.
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20:24(PhysOrg.com) -- University of California, Berkeley, biologists and engineers including undergraduate and graduate students studied how lizards manage to leap successfully even when they slip and stumble, and found that swinging the tail upward is the key to preventing a forward pitch that could send them head-over-heels into a tree.
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20:24Using powerful magnets to levitate fruit flies can provide vital clues to how biological organisms are affected by weightless conditions in space, researchers at The University of Nottingham say.
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20:24More U.S. women are having twins these days. The reason? Older moms and fertility treatments.
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20:24Pentagon-supported physicists on Wednesday said they had devised a "time cloak" that briefly makes an event undetectable.
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20:24Saturn's largest moon, Titan, is an intriguing, alien world that's covered in a thick atmosphere with abundant methane. With an average surface temperature of a brisk -297 degrees Fahrenheit (about 90 kelvins) and a diameter just less than half of Earth's, Titan boasts methane clouds and fog, as well as rainstorms and plentiful lakes of liquid methane. It's the only place in the solar system, other than Earth, that has large bodies of liquid on its surface.
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20:24The lives of hundreds of women could be saved every year, thanks to a simple online calculator that could help GPs identify women most at risk of having ovarian cancer at a much earlier stage.
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20:24The rotovirus vaccine was pulled from the marketplace in 1999 after being associated with painful gastrointestinal complications, however, the updated rotavirus vaccines do not appear to increase the occurrence of these potentially fatal side effects, according to a new study by child health experts at C.S. Mott Children's Hospital.
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20:24US health officials announced Wednesday they will begin restricting the use of some antibiotics in cows, pigs and poultry due to concerns that some infections in humans may be growing resistant to treatment.
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20:21
Russian runoff freshening Canadian Arctic, NASA finds
A new study allays concerns that melting Arctic sea ice could be increasing the amount of freshwater in the Arctic enough to have an impact on the global "ocean conveyor belt" that redistributes heat around our planet. Researchers detected a previously unknown redistribution of freshwater during the past decade from the Eurasian half of the Arctic Ocean to the Canadian half. Yet despite the redistribution, they found no change in the net amount of freshwater in the Arctic that might signal a change in the conveyor belt.
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20:08
IBM Buys Cloud-Based Software Testing Company Green Hat
IBM isn't wasting any time getting into acquisition mode in 2012. Big Blue just announced an agreement to acquire a cloud software quality and testing solutions company. IBM is snapping up Green Hat for an undisclosed amount.Simply stated, Green Hat helps its customers improve the quality of software applications by enabling developers to leverage cloud computing technologies to conduct testing on a software application before it is delivered.
IBM had a good reason to acquire Green Hat, namely demand. According to the National Institute for Standards and Technology, software testing represents more than 50 percent of overall development costs. And testing teams often spend upward of 30 percent of their time managing the complexity of the test environment.
Modern App Testing Green Hat curbs those costs by creating a virtual environment that simulates a wide range of IT infrastructure elements, without the constraints of hardware or software services. IBM said the continuous environment empowers developers and quality professionals to test software earlier and more frequently throughout the software development lifecycle.
In the past, a development team had to construct an actual testing lab with both hardware and software to run simulation testing on a software program. That was a time consuming and labor intensive process. But when you add to that today's shorter development cycles, especially in markets like smartphones and tablets, the complexity is compounded. Green Hat's solutions lets developers set up a virtual test environment in minutes vs. weeks and at a fraction of the cost.
"This acquisition extends IBM's leadership in driving business agility and software quality by changing the way enterprises can manage software development cost, test cycle time and risk," said Kristof Kloeckner, general manager of IBM Rational. "Green Hat's application virtualization capabilities will help our customers accelerate their delivery of business critical software."
IBM Hires 'Green' Chef When the acquisition closes,...
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19:56
Now you see it, now you don't: Time cloak created (AP)
AP - It's one thing to make an object invisible, like Harry Potter's mythical cloak. But scientists have made an entire event impossible to see. They have invented a time masker.
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19:54Scientists have used supercomputers to uncover the properties of a promising form of graphene, known as graphene nanowiggles. What they found was that graphitic nanoribbons can be segmented into several different surface structures called nanowiggles. Each of these structures produces highly different magnetic and conductive properties. The findings provide a blueprint that scientists can use to literally pick and choose a graphene nanostructure that is tuned and customized for a different task or device.
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19:54The incidence and prevalence of inflammatory bowel disease are increasing with time and in different regions around the world.
Naposledy aktualizované zdroje
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Guardian Unlimited Science (dnes, 12:00)
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BBC Science/Nature (dnes, 10:02)
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EurekAlert (dnes, 06:00)
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ScienceNOW (dnes, 01:12)
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National Geographic News (dnes, 00:48)
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CBC - Technology & Science News (24. 5, 22:49)
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Discovery (24. 5, 22:06)
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NASA (24. 5, 21:35)
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TIME (23. 5, 08:40)
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