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19305
This article is somewhat misleading. We physicians long ago learned that blocking the enzymatic process (with Antibuse) helps alcoholics. The news is that increases in acetaldehyde in saliva have “possible local carcinogenic action.” Malcolm A. Sowers Castro Valley, Calif
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Man-made thymus churns out immune cells
Scientists have constructed an artificial thymus to make immune cells in the laboratory.
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Brain, heal thyself
The rodent brain can be stimulated to replace damaged cells with new ones.
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Protein helps the brain connect
Neuroligins may help brain cells form specialized links known as synapses.
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Wasps: Mom doesn’t like you best
Female wasps that found a colony together show no favoritism toward their own offspring when the adults feed larvae.
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Excuse me, dear, which octopus are you?
Male blue-ringed octopuses get pretty far along in their courtship before they determine whether their partner is a female.
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How butterflies can eat cyanide
Some newly recognized chemical wizardry lets some Heliconius caterpillars thrive on leaves that defend themselves with cyanide.
- Astronomy
Astronomers get radio protection
Astronomers studying the universe at millimeter-wave energies-the high-frequency portion of the radio spectrum-were given an official guarantee last month that commercial satellites and other communication devices won't interfere with the scientists' observations.
- Astronomy
The smashup that rejuvenates
For some elderly stars, the fountain of youth may be only a collision away.
- Math
Contra Dances, Matrices, and Groups
Though unknown to many people, contra dancing is practiced with great devotion and abandon throughout the United States by fans of this lively dance form. What’s striking is that a remarkably high percentage of contra dancing’s practitioners are highly educated, often involved in mathematics, computers, or engineering. Matrix representing initial configuration of two couples in […]
- Tech
Watching the Big Wheelers: In sea of cars, trucks reveal traffic flow
A new way to sense traffic jams more quickly tracks the motion of trucks within the overall traffic flow.
- Materials Science
Making Polymers That Self-Destruct: Layers break apart in controlled way
A new polymer film chews itself apart under certain conditions, making it a potential candidate for the controlled delivery of therapeutic drugs.
