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Russian Mars moon probe crashes down

Russian Mars moon probe crashes down

Nature News , 16012012 doi: 10.1038/nature.2012.9813

Katharine Sanderson

Phobos-Grunt is thought to have landed in the Pacific Ocean.

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No walk in the park: Factors that predict walking difficulty in elderly

Researchers have found that the likelihood of becoming disabled with age increases with the following factors: having a chronic condition or cognitive impairment; low physical activity; slower gross motor coordination; having poor lower-extremity function; and being hospitalized. Women are also more likely than men to become disabled in their later years.

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Breast cancer spread triggered by a cleaver-wielding protein on cancer cell’s surface

Scientists have exposed a cell pathway that breast tumor cells use to destruct local tissue neighborhood. Cancer cells may use this pathway to free themselves from mammary epithelial tissue architecture, to spread to surrounding tissues. The cell pathway, the researchers found, is a biochemical chain of events leading to activation of a protein-cleaving enzyme on the surface of the tumor cells.

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Broken arm? Brain shifts quickly when using a sling or cast

Using a sling or cast after injuring an arm may cause your brain to shift quickly to adjust, according to a new study. The study found increases in the size of brain areas that were compensating for the injured side, and decreases in areas that were not being used due to the cast or sling.

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Traditional physical autopsies – not high-tech ‘virtopsies’ – still the gold standard for determining cause of death, experts claim

TV crime shows like Bones and CSI are quick to explain each death by showing highly detailed scans and video images of victims’ insides. Traditional autopsies, if shown at all, are at best in supporting roles to the high-tech equipment, and usually gloss over the sometimes physically grueling tasks of sawing through skin and bone.

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Headphones linked to pedestrian deaths, injuries

Serious injuries to pedestrians listening to headphones have more than tripled in six years, according to new research. In many cases, the cars or trains are sounding horns that the pedestrians cannot hear, leading to fatalities in nearly three-quarters of cases.

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Biologists a step nearer to solving the Parkinson’s conundrum

Scientists have made a significant step forward in isolating the cause of Parkinson’s disease in younger adults.

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Large and in charge: Powerful people overestimate their own height

The psychological experience of power makes people feel taller than they are, according to new research. It seems there is actually a physical experience that goes along with feeling powerful.

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Revolutionary surgical technique for perforations of the eardrum

Scientists announce a revolutionary surgical technique for perforations of the eardrum. The 20-minute procedure in outpatient clinic without general anesthetic may replace long and costly day surgery.

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‘Spooky action at distance’: Physicists develop first conclusive test to better understand high-energy particles correlations

Researchers have devised a proposal for the first conclusive experimental test of a phenomenon known as ‘Bell’s nonlocality.’ This test is designed to reveal correlations that are stronger than any classical correlations, and do so between high-energy particles that do not consist of ordinary matter and light. These results are relevant to the so-called ‘CP violation’ principle, which is used to explain the dominance of matter over antimatter.

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