News
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Health & MedicineNew route to insulin-making cells
Researchers have found cells resembling stem cells in the mouse pancreas, suggesting new ways to treat diabetes.
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EarthA crack and a fault in paradise
Mauna Loa, Hawaii's most massive volcano, may be splitting the Earth's crust.
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AnimalsVery brown sheep have a dark side
Big, dark sheep on a Scottish island are not breaking the rules of evolution after all.
By Susan Milius -
Health & MedicineReceptor may be cancer accomplice
Suppressing a receptor protein called neuropilin-2 slows colon cancer growth in mice.
By Nathan Seppa -
EarthFabulon: Looking less fabulous
The source of polychlorinated biphenyls found heavily tainting some homes—and their dwellers—appears to be a durable topcoat for hardwood floors that was widely used a half-century ago.
By Janet Raloff -
Materials ScienceFishy flash
Fish alter the growth of crystals in their skin, making it supershiny.
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TechSmells like DNA
By reshuffling the chemical letters of the genetic code, scientists have made short strands of DNA that can distinguish several different smells, such as explosives and food preservatives.
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Health & MedicineBariatric Reversal: Stomach surgery curbs some patients’ diabetes
Weight-loss stomach surgery in obese people with type 2 diabetes sends the disease into remission in some patients.
By Nathan Seppa -
Sickness and Schizophrenia: Psychotic ills tied to previous infections
Two new studies provide evidence for the longstanding suspicion that certain viral infections early in life promote the development of schizophrenia and related psychotic disorders.
By Bruce Bower -
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PhysicsScanner Darkly: Tiny venetian blinds enhance radiography
Microscopic gratings that select scattered X rays might improve luggage screening and cancer detection.