Uncategorized
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ChemistryNitrogen Unbound: New reaction breaks strong chemical link
Researchers have developed a new way to turn nitrogen into ammonia that could improve upon an energy-intensive, 90-year-old method used to make fertilizers.
By Sid Perkins -
AnimalsFish in the dark still size up mates
Female cave fish still have their ancestral preference for a large male, even though it's too dark to see him.
By Susan Milius -
Health & MedicineMalaria drug boosts recovery rates
Adding the herbal-extract drug artesunate to standard malaria treatment reduces the relapse rate, even in areas where the malaria parasite is resistant to standard drugs.
By Nathan Seppa -
Materials ScienceLight whips platinum into shape
Scientists are exploiting the molecular machinery behind photosynthesis to create unique nanostructures out of platinum.
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ChemistryNature’s tiniest rotor runs like clockwork
By manipulating a tiny protein found in most living cells, researchers created a molecular rotor that can convert mechanical motion into chemical energy.
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The thought that anyone, Eskimo or otherwise, would willingly kill a member of an endangered species that may have been swimming when George Washington was still alive makes me sick at heart. Honoring one’s ancestors could surely be achieved by going out in a whaleboat, engaging in a mock hunt, and showing true reverence for […]
By Science News -
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This article could leave the impression that the evolutionary significant unit (ESU) is the de facto concept employed for all listing decisions under the Endangered Species Act. In fact, the ESU has not been used in the vast majority of recent listing decisions under the act. Nor should it be. The act allows the National […]
By Science News -
Health & MedicineBusy hospitals may not be best choice
A large number of heart surgeries done at a hospital doesn't always correlate with a low mortality rate from such operations at the facility.
By Nathan Seppa -
EarthIce-dammed lakes had cooling effect
New computer simulations suggest that massive lakes in northern Russia—formed when an ice sheet blocked the northward flow of rivers about 90,000 years ago—significantly cooled the region's climate in summer months.
By Sid Perkins -
HumansBetter protection from mad cow disease
The Food and Drug Administration has announced several new measures to keep meat that's potentially infected with mad cow disease out of food supplies.
By Janet Raloff -
Health & MedicineSurgery removes grenade from soldier’s head
Colombian military doctors extracted an intact grenade from the head of a teenage soldier.
By Ben Harder -
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Of course animals think, I’d say. But you say, “Many [scientists] theorized that nonhuman animals react to their surroundings without actually thinking.” My observation over the decades has been that most humans do the same, most of the time. George BlenderSan Diego, Calif. You don’t need all the elaborate experiments described in the article. If […]
By Science News