News
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Materials ScienceMolecular template makes nanoscale helix
Using ribbons made of organic molecules as minuscule templates, researchers have coaxed a semiconductor material into tiny helical coils.
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Health & MedicineWatermelon red means lycopene rich
Watermelon is a far better source of the carotenoid lycopene than tomatoes are and at least as well absorbed by the body.
By Janet Raloff -
Tough Tradeoff: Beetle brains show how sex shortens life
Brain surgery in beetles reveals yet another way that having sex can shorten life.
By Susan Milius -
HumansOfficial Concern: U.N. weighs in on acrylamide toxicity
A United Nations panel concluded that, in fried, grilled, and baked foods, the formation of acrylamide, a carcinogen and nerve poison in rodents, constitutes "a serious problem."