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373 articles from THURSDAY 7.6.2012
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THURSDAY 7. JUNE, 2012
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Scientists have developed a new, highly efficacious, potentially safer and more cost effective nanoparticle-based MRI (magnetic resonance imaging) contrast agent for improved disease diagnosis and detection.
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For the first time, researchers have determined the function of a series proteins within the mosquito that transduce a signal that enables the mosquito to fight off infection from the parasite that causes malaria in humans. Together, these proteins are known as immune deficiency (Imd) pathway signal transducing factors, are analogous to an electrical circuit. As each factor is switched on or off it triggers or inhibits the next, finally leading to the launch of an immune response against the malaria parasite.
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Using a new and powerful approach to understand the origins of neurodegenerative disorders such as Alzheimer’s disease, researchers are building the case that these diseases are primarily caused by genes that are too active or not active enough, rather than by harmful gene mutations.
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In exploring the genetics of mitochondria – the powerhouse of the cell – researchers have stumbled upon a finding that challenges previously held beliefs about the role of mutations in cancer development. For the first time, researchers have found that the number of new mutations are significantly lower in cancers than in normal cells.
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A new study has identified molecular changes responsible for abnormal cholesterol production and metabolism in the livers of patients with a common liver condition, and these changes may explain the severity of a patient’s liver disease and risks to their heart health.
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Cost overruns doom mission
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A parasitic mite has helped spread a lethal virus that has wiped out millions of honeybee colonies worldwide, say scientists.
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The gap in life expectancy between whites and blacks in America has narrowed, reaching the lowest point ever recorded, a new study shows.
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The Pacific Institute reinstates Peter Gleick as its president, saying it has accepted his apology for using false pretenses to obtain internal documents from an institute that challenges climate science.
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Big Data startup Kaggle is crowdsourcing the application process.
With a blog post titled “
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High school students have improved some of their risky driving behaviors over the last decade, according to a new report from the Centers for Disease Control and Prevention.
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Thanks to a little serendipity, researchers at Rice University have created a tiny coaxial cable that is about a thousand times smaller than a human hair and has higher capacitance than previously reported microcapacitors.
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Millions of Bangladeshis have been unable to use the Internet or suffered slow connections after a submarine cable was cut off the coast of Singapore, an official said Thursday.
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(AP) Anthropologist Phillip Tobias, internationally renowned as an authority on human evolution and remembered for his love of humanity, died Thursday, South Africa's University of the Witwatersrand said. He was 86.
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Results of a preliminary experiment conducted at the University of Illinois indicate that it may be possible to select pigs that can make efficient use of energy in less expensive feed ingredients, thus reducing diet costs.
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When debris from the 2011 earthquake and tsunami in Japan began making its way toward the West Coast of the United States, there were fears of possible radiation and chemical contamination as well as costly cleanup.
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(Phys.org) -- Black holes are extremely powerful and efficient engines that not only swallow up matter, but also return a lot of energy to the Universe in exchange for the mass they eat. When black holes attract mass they also trigger the release of intense X-ray radiation and power strong jets. But not all black holes do this the same way. This has long baffled astronomers. By studying two active black holes researchers at the SRON Netherlands Institute for Space Research have now gathered evidence that suggests that each black hole can change between two different regimes, like changing the gears of an engine. The team's findings will be published in two papers in the journal Monthly Notices of the Royal Astronomical Society.
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A team of researchers, including scientists from Woods Hole Oceanographic Institution (WHOI), discovered a massive bloom of phytoplankton beneath ice-covered Arctic waters. Until now, sea ice was thought to block sunlight and limit the growth of microscopic marine plants living under the ice.
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(AP) Travelers on London's Underground need no longer fear being out of touch.
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(AP) NASA has killed a new X-ray telescope mission, two years before its planned launch.
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Researchers from Rice University and UCLA unveiled a new data-encoding scheme this week that slashes more than 30 percent of the energy needed to write data onto new memory cards that use "phase-change memory" (PCM) -- a competitor to flash memory that has big backing from industry heavyweights.
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Element Six, the world leader in synthetic diamond supermaterials, working in partnership with academics in Harvard University, California Institute of Technology and Max-Planck-Institut für Quantenoptik, has used its Element Six single crystal synthetic diamond grown by chemical vapour deposition (CVD) to demonstrate the capability of quantum bit memory to exceed one second at room temperature.
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More websites admitted security breaches Thursday after LinkedIn said some of its members' passwords were stolen, and experts warned of email scams targeting users of the social network.
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The quantum computer is a futuristic machine that could operate at speeds even more mind-boggling than the world's fastest super-computers.
Naposledy aktualizované zdroje
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BBC Science/Nature (dnes, 05:05)
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CBC - Technology & Science News (dnes, 04:53)
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PhysOrg (dnes, 03:24)
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Technology Review Feed - Tech Review Top Stories (dnes, 02:26)
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ScienceDaily (dnes, 01:31)
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Guardian Unlimited Science (20. 5, 23:45)
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Yahoo! (20. 5, 23:26)
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Sci-Tech Today (20. 5, 23:10)
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ScienceNOW (20. 5, 22:24)
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National Geographic News (20. 5, 21:58)
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NYT > Science (20. 5, 20:37)
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EurekAlert (20. 5, 06:00)
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NASA (17. 5, 02:56)
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Discovery (7. 3, 18:11)
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TIME (27. 7, 08:30)


