News
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Health & MedicineLong-term ecstasy use impairs memory
Extended use of the illicit drug called MDMA or ecstasy exacerbated memory problems in users aged 17 to 31, none of whom reported alcohol dependence.
By Nathan Seppa -
Health & MedicinePeptide puts mouse arthritis out of joint
A compound called vasointestinal peptide, which binds to immune system T cells and macrophages, thwarts arthritis in mice.
By Nathan Seppa -
Dolphins may seek selves in mirror images
Dolphins apparently recognize their own reflections.
By Bruce Bower -
For some birds, Mr. Wrong can be alright
What looks like the ultimate bad choice in romance—a mate from a different species—in some conditions may not be so dumb after all.
By Susan Milius -
AstronomyHave scientists seen planets in the making?
Astronomers may finally have glimpsed a key step in the construction of a planet.
By Ron Cowen -
EarthEven low lead in kids has a high IQ cost
Lead can damage a young child's ability to learn and reason at exposures far lower than the limit deemed acceptable by the U.S. government.
By Janet Raloff -
PhysicsNew probe reveals unfamiliar inner proton
Researchers taking one of the closest looks yet into the intact proton have found an unexpectedly complex interior electromagnetic environment.
By Peter Weiss -
Health & MedicineEpileptic seizures may be predictable
Patterns of mild electrical disturbance in the brains of epilepsy patients appear to foreshadow a seizure hours before its onset.
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Materials ScienceInorganic tubes get smaller than ever
Researchers have created the smallest stable, freestanding inorganic nanotubes yet.
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ChemistryRocks May Have Given a Hand to Life
In a new twist to the puzzle of how life developed from only left-handed amino acids, researchers have found that the common mineral calcite can segregate the molecules into their left-handed and right-handed varieties.
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Materials ScienceNovel nanotubes are now made-to-order
Researchers have made nanotubes with specific sizes and traits by designing molecules that self-assemble.
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TechElectromagnetism acts oddly in device
Without breaking any physical laws, a novel, fiberglass-copper structure affects microwaves so strangely that a beam of radiation passing through it bends at an angle opposite from what it get bent at an angle opposite from what it would have exiting any other known material.
By Peter Weiss