News
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Health & Medicine‘Super Size’ diet increases insulin resistance
Scientists study effects of a month-long fast food binge, finding that weight gain and insulin resistance may be related.
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HumansStudents present projects at 2009 ISEF
Flatworms, inflatable suits and alternatives to windmills make appearances at this week's international science competition in Reno.
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PsychologySchool-age lead exposures most harmful to IQ
New studies find lead exposure has greater potency in school-age children than in infants and toddlers, including effects on brain volume.
By Janet Raloff -
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Health & MedicineScorpion venom neutralized
An antivenom drug commonly used in Mexico counteracts poisonous scorpion stings, researchers in Arizona find.
By Nathan Seppa -
HumansOn imagination, knowledge, art, science and … ET
High schoolers at the Intel International Science and Engineering Fair probe the minds of distinguished scientists during a special Q and A
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LifeFor blood stem cells, the force is strong
Blood flow boosts production of blood stem cells, two new studies show.
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SpaceCosmic dustup settles
Two new studies document how crystalline dust forms in the hot, inner part of a young star’s planet-making disk and then gets incorporated into the cold, comet-forming region billions of kilometers away.
By Ron Cowen -
ChemistryHow RNA got started
Scientists identify chemical reactions that could be responsible for the origin of life.
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ChemistryNonstick chemical pollutes water at notable levels
Residues of nonstick chemicals — from unknown sources — appear to be approaching concentrations associated with adverse effects in laboratory animals.
By Janet Raloff -
Health & MedicineToothpicks match needles for acupuncture
Sham acupuncture works as well as the real thing for back pain, a study shows.
By Nathan Seppa -
HumansIntel International Science and Engineering Fair kicks off
Young scientists descend on Reno in hopes of winning scholarships and other prizes.