News
- Health & Medicine
Carotid surgery stands test of time
Surgery to remove blockages from the carotid artery in the neck has lasting effects against stroke over several years and even provides some benefit when it's delayed.
- Astronomy
Neutron stars twist Einstein’s theory
Astronomers may finally have found evidence of a key prediction of Einstein's general theory of relativity—that a spinning object drags space-time along with it.
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Gene find could yield decaffeinated plants
The first published report of cloning a gene for caffeine synthesis raises the possibility of creating decaf plants.
- Chemistry
Additive gives improved mileage, less smog
A new fuel additive, polyisobutylene, decreases automobile emissions by 70 percent while increasing power and mileage.
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NIH OKs work on stem cells
The U.S. government opened the door for U.S. scientists to receive federal funding for research on stem cells from human embryos.
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Brain-Cell Loss Found in Narcolepsy
The puzzling sleep disorder known as narcolepsy stems from the destruction of a small group of brain cells.
- Health & Medicine
Domestic Disease: Exotic pets bring pathogens home
The potentially deadly monkeypox virus has spread from Africa to people in several states via infected pet prairie dogs.
- Astronomy
Sharpening a Heavenly Image: Clear view of globular cluster’s crowded core
Using innovative optics to take the twinkle out of starlight, the Gemini North Telescope on Hawaii's Mauna Kea has recorded the sharpest infrared images ever of a crowded grouping of Milky Way stars.
- Materials Science
Fixed Focus: Adjustable lenses from liquid droplets
Seasoned with a pinch of salt, droplets of a polymer precursor become voltage-adjustable lenses that may cut costs in fiberoptic telecommunications.
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Lease on Life: Old mice live longer when given young ovaries
Implanting young ovaries in old mice extends their life expectancy.
- Materials Science
Super Fibers: Nanotubes make tough threads
New fibers made from carbon nanotubes and a polymer appear tougher than any other known synthetic or natural material.
- Health & Medicine
Full-Length Pregnancy: Progesterone product may reduce premature births
A drug related to the female hormone progesterone helps some pregnant women who are prone to premature birth extend their pregnancies.
