Everybody knows that skiers swishing down steep slopes can cause extensive slab avalanches. But there is a less well known phenomenon: A person skiing a gentle slope in the valley triggers a slab avalanche on a steeper slope, sometimes several hundred meters further uphill. This scenario doesn't seem to make sense – yet it claims human lives year after year.
Field test to demonstrate the anti-crack model.
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News On December 3, 2008 - 4:10pm
DURHAM, N.C. -- A Duke University study suggests that evolution can behave as differently as dogs and cats. While the dogs depend on an energy-efficient style of four-footed running over long distances to catch their prey, cats seem to have evolved a profoundly inefficient gait, tailor-made to creep up on a mouse or bird in slow motion.
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News On December 3, 2008 - 1:30am
Northern Europe has so far been free from invasive pest ants, but it seems just a matter of time until Lasius neglectus, a new ant that was discovered in 1990, will reach these latitudes and wreak havoc in parks and gardens of Northern Germany, Scandinavia and the British Isles.
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News On December 3, 2008 - 12:30am
Hypersensitivity reactions to the quadrivalent HPV vaccine (4vHPV, Gardasil) are uncommon and most schoolgirls can tolerate subsequent doses, finds the first evaluation of the quadrivalent HPV vaccine published on bmj.com today.
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News On December 2, 2008 - 5:30pm
Having discovered how a lowly, single-celled fungus regulates its version of cholesterol, Johns Hopkins researchers are gaining new insight about the target and action of cholesterol-lowering drugs taken daily by millions of people to stave off heart attacks and strokes. Their work appears in the December issue of Cell Metabolism.
In humans, statin drugs inhibit an enzyme, HMG-CoA reductase, to lower blood cholesterol. What's not as well understood are the multiple layers of control for the enzyme, especially the regulatory protein Insig.
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News On December 2, 2008 - 3:30pm
PITTSBURGH— A recent Carnegie Mellon University CyLab survey of corporate board directors reveals a gap in board and senior executive oversight in managing cyber risks.
Based upon data from 703 individuals (primarily independent directors) serving on U.S-listed public company boards, only 36 percent of the respondents indicated that their board had any direct involvement with oversight of information security.
The survey also said that cybersecurity issues need to be seen as an enterprise risk management problem rather than an IT issue.
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