News
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Study explores abortion’s mental aftermath
A majority of women report no increase in psychological problems after having an abortion, although nearly one in five express dissatisfaction and regret 2 years later about their decision.
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Skin cells reveal they have hairy origins
The outer layers of the skin may spring from cells in hair follicles.
- Tech
Nanotechnologists get a squirt gun, almost
A novel computer simulation of molecular behavior suggests that a minuscule squirt gun able to spit liquids a few hundred nanometers ought to work.
- Paleontology
Feathered fossil still stirs debate
More than 2 years after scientists first described 120-million-year-old fossils of a feathered animal, a new analysis seems to bolster the view that the turkey-size species was a bird has-been and not a bird wanna-be.
- Astronomy
Telescope takes close-ups of distant star
Radio astronomers have for the first time probed ejected gas in the immediate surroundings of a distant star.
- Physics
Answer blows in wind, swirls in soap
A swirling soap film gives new clues to how turbulent flows, such as the circulation of Earth's atmosphere, squander their energy.
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Older isn’t wiser in moral reasoning
Researchers find more endorsement of immanent justice, the belief that the natural world punishes human misdeeds, among college students than sixth-graders.
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In gauging beauty, congeniality counts
People judge others who have positive personality traits by more lenient physical criteria for attractiveness than they do those about whom they have no personality information.
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Feedback matters for getting the joke
Plausible information about how others react to jokes colors a college student's own perception of the humor value of the material.
- Health & Medicine
Genes of cholera germ deciphered
The bacterium that causes cholera has nearly 4,000 genes on its two circular chromosomes.
- Health & Medicine
Microbes implicated in heart disease
Viruses and bacteria besides chlamydia may play a role in human heart disease through an immune reaction to a heartlike protein they produce.
- Health & Medicine
Antibiotic for Huntington’s disease?
In mice genetically engineered to develop an illness similar to Huntington's disease, the drug minocycline significantly delays the onset of symptoms and death.
