Uncategorized
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Health & Medicine
Study clarifies obesity-infertility link
In female mice, high insulin levels cause a disruptive flood of fertility hormones.
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Chemistry
Light-harvesting complexes do it themselves
A new technique could yield solar cells with no repair or assembly required.
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Space
Changing one of nature’s constants
A controversial new study suggests that an immutable value that governs the strength of the electromagnetic force varies along different directions.
By Ron Cowen -
Life
Microbe’s survival manual
Researchers have uncovered how D. radiodurans can withstand extreme radiation.
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Humans
DVDs don’t turn toddlers into vocabulary Einsteins
Young children don’t learn words from a popular educational program, but some of their parents think they do.
By Bruce Bower -
Physics
String theory entangled
Scientists forge an intriguing mathematical link between black holes and the physics of the very small.
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Earth
Geomagnetic field flip-flops in a flash
Rocks in Nevada preserve evidence of superfast changes in Earth’s magnetic polarity.
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Health & Medicine
Diabetes drug might fight cancer
A widely prescribed medication with few side effects shows promise in both mice and humans.
By Nathan Seppa -
Life
Feud over family ties in evolution
Prominent scientists dispute kinship’s role in self-sacrifice among highly social creatures.
By Susan Milius -
Health & Medicine
Alzheimer’s trade-off for mentally active seniors
Staying mentally active may delay the onset of Alzheimer’s disease but may also prompt rapid cognitive decline once symptoms appear.
By Bruce Bower -
Life
Hints of altruism among bacteria
E. coli bacteria fight antibiotics with help from drug-resistant neighbors.
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Health & Medicine
Ovary removal proves beneficial for cancer-prone women
BRCA mutation carriers who opt for surgery survive longer than those who forgo the operation, a new study shows.
By Nathan Seppa