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  1. Health & Medicine

    Less morphine may be more

    In mice, very low doses of morphine combined with even lower doses of a drug that usually blocks morphine's effect can give greater pain relief than higher doses of morphine alone.

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  2. Anthropology

    Yanomami inquiry moves forward

    The American Anthropological Association has launched a formal inquiry into the highly publicized allegations of scientific misconduct by anthropologists and others working in South America among the Yanomami Indians.

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  3. Anthropology

    Chimps grasp at social identities

    Researchers contend that neighboring communities of wild chimpanzees develop distinctive styles of mutual grooming to identify fellow group members and foster social solidarity.

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  4. 18905

    “Jiggling the cosmic ooze” states that Leon Lederman won the Nobel prize in 1988 for “codiscovering the muon.” It is a small error, but more correctly, Lederman won the Nobel prize for codiscovering the mu neutrino. The muon was discovered in cosmic rays in 1937–1938 by researchers using cloud-chamber techniques. Peter B. Kahn State University […]

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  5. Physics

    Jiggling the Cosmic Ooze

    Spurred by the first tentative sightings after a decades-old search, physicists seeking the universe's mass-giving particle — the Higgs boson — have fired up the world's highest-energy particle collider to join the pursuit.

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  6. Health & Medicine

    Two genes tied to common birth defect

    Researchers report that defects in either of two specific genes may be responsible for DiGeorge syndrome, the second most common cause of congenital heart defects in newborns.

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  7. Baboon rumps signal quality of motherhood

    The size of the swellings on a female baboon’s rump match her physical prowess for motherhood, a rare case of reproductive-quality advertisement in females.

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  8. Earth

    Is there a vent in the global greenhouse?

    Satellite observations of ocean temperatures in tropical regions of the western Pacific suggest that when ocean temperatures there warm up, the amount of heat-trapping cirrus clouds decreases, possibly providing a heat-venting effect that could help reduce global warming.

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  9. Planetary Science

    Debate over life in Mars rock rekindles

    Two recent studies could inject new life into the argument that a 4-billion-year-old Martian meteorite contains fossils of bacteria from the Red Planet but several scientists say the reports fall short of resurrecting that notion.

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  10. 18904

    In regards to “Dinosaur fossil yields feathery structures,” the scattered feathery structures may have belonged to an antecedent of Archaeopteryx but not necessarily a Sinornithosaurus. Given the context and location of the fossils, it seems more likely they belonged to the raptor’s last meal before its untimely demise. Aaron Stough Roanoke, Va.

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  11. Paleontology

    Dinosaur fossil yields feathery structures

    Researchers believe they have found primitive feathers on the remains of Sinornithosaurus millenii, a 124-million-year-old raptor dinosaur from Liaoning, China.

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  12. Materials Science

    Scientists belt out a novel nanostructure

    Researchers have used metal oxides to make microscopic ribbonlike structures that could prove useful for developing future nanoscale devices.

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