Health & Medicine
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Health & MedicineVacillating stem cells
Unsuspected, ever-changing variation among stem cells in bone marrow helps determine the development path the cells will follow during differentiation.
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Health & MedicineTrust again
The ability to trust others even after violations of trust is regulated by the hormone oxytocin.
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Health & MedicineNonstick toxicity
By mimicking the action of estrogen, a widely used nonstick chemical promotes cancer development in animals.
By Janet Raloff -
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Health & MedicineDonor dilemma
Blood donors age 16 or 17 are more apt to faint than older donors.
By Nathan Seppa -
TechI, computer
Bacteria that can "flip pancakes" with their DNA are the first microbes engineered to be living computers.
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Health & MedicineItchy and scratchy
People with a close relative who has had shingles face a heightened risk of getting the skin disease, and should probably be first in line to get the vaccine.
By Nathan Seppa -
LifeSepsis buster
The Ashwell receptor, a sugar-binding protein on liver cells, helps fight sepsis by clearing blood-clotting factors. The discovery clears up years of mystery surrounding the receptor’s function.
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LifeIdentifying viable embryos
New genetic tests to distinguish viable from nonviable embryos may help eliminate risky multiple births from fertility procedures.
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LifeGood night, Sloth
First EEG of free-roaming animals finds less sleeping in the real world.
By Susan Milius -
Health & MedicineSharing valuable real estate
Human brains rewire when people lose a sense, but a new study of people who have regained vision shows that the rewired areas retain their old abilities.
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Materials ScienceLike the Nobel, Only Norwegian
Two weeks from now, an astrophysicist, neuroscientist, and nanoscience researcher will each be named to receive $1 million Kavli Prizes.
By Janet Raloff