Uncategorized
- 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.
- Life
Hints of altruism among bacteria
E. coli bacteria fight antibiotics with help from drug-resistant neighbors.
- 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.
- Life
Why starved flies need less sleep
Low lipid levels keep the insects buzzing past bedtime, a new study finds, suggesting a role for metabolism in regulating sleep.
- Space
Still no Earths, but getting closer
Two newly discovered planetary systems shed light on the likelihood of producing terrestrial planets.
- Archaeology
Big eats from a 12,000-year-old burial
Middle Eastern villagers may have feasted around a shaman’s grave 12,000 years ago, before the dawn of agriculture.
- Earth
Primordial bestiary gets an annex
A classic Canadian fossil trove extends to thinner deposits, geologists find.
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In field or backyard, frogs face threats
Amphibians and other sensitive groups encounter chemicals across the landscape.
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DNA on the move
The latest advances from the field of DNA nanotechnology include nanobot ‘spiders’ learning how to walk and even do some work.
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A matter of solidity
A material that oozes through itself presents a super physics puzzle.
- Physics
Very tiny, very cool
Physicists outline a scheme to build a ‘refrigerator’ that can cool to near absolute zero and is based on only a few particles.
