September 3, 2010

Science’s policy clout diminished, but oil risk looms large, study finds


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More people are likely to believe scientific studies claiming that oil drilling is riskier, not safer, than was previously thought, according to a new study of attitudes in California. What's more the findings show that scientists' efforts to influence public opinion have a limited effect.

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Miniature auto differential helps tiny aerial robots stay aloft

Engineers have created a millionth-scale automobile differential to govern the flight of minuscule aerial robots that could someday be used to probe environmental hazards, forest fires, and other places too perilous for people. Their new approach is the first to passively balance the aerodynamic forces encountered by these miniature flying devices, letting their wings flap asymmetrically in response to gusts of wind, wing damage, and other real-world impediments.

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Children who eat vended snack foods face chronic health problems, poor diet, study finds

School children who consume foods purchased in vending machines are more likely to develop poor diet quality -- and that may be associated with being overweight, obese or at risk for chronic health problems such as diabetes and coronary artery disease, according to new research.

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Experiment records ultrafast chemical reaction with vibrational echoes

To watch a magician transform a vase of flowers into a rabbit, it's best to have a front-row seat. Likewise, for chemical transformations in solution, the best view belongs to the molecular spectators closest to the action. Those special molecules comprise the "first solvation shell," and although it has been known for decades that they can sense and dictate the fate of nearly every chemical reaction, it has been virtually impossible to watch them respond -- until now.

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Increased risk for lupus in men with certain form of immune receptor

Humans -- males in particular -- with a variant form of the immune receptor gene "Toll Like Receptor 7" are at increased risk of developing the autoimmune disease lupus. This finding offers renewed hope for developing more targeted treatments.

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Laser-based missile defense for helicopters being developed

Protecting helicopters in combat from heat-seeking missiles is the goal of new laser technology.

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