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Your search has returned 15 articles:
  • News

    String Trio: Novel instrument strums like guitar, rings like bell

    At the heart of many of the world's musical instruments is the same, simple component—a string stretched tight between two points. Plucked, bowed, or struck, each of an instrument's strings creates ear-catching vibrations.

    Now, mathematicians in Canada say that they have invented a family of music-making devices based on a network of three or more string segments—for instance, a...

    05/31/2006 - 11:16 Physics
  • News

    Stones of Contention: Tiny Homo species tied to ancient tool tradition

    New discoveries have shifted a prehistoric, island controversy from bones to stones. Simple stone tools accompanied the fossils of Homo floresiensis, the half-size human cousin that inhabited the Indonesian island of Flores around 74,000 to 12,000 years ago, but some scientists argued that those tools had been made by Homo sapiens. Now, much older tools discovered on Flores suggest that H....

    05/31/2006 - 11:00 Archaeology
  • News

    Oil Booms: Whales don't avoid noise of seismic exploration

    Field tests in the Gulf of Mexico suggest that sperm whales there don't swim away from boats conducting seismic surveys of the seafloor. However, the surveys' noise—typically generated during the hunt for oil and natural gas deposits—may be having subtle effects on the whales' feeding behavior.

    Scientists use a device called an air gun to probe the seafloor. A burst of compressed...

    05/31/2006 - 10:45 Earth
  • News

    Wrong Impression: Bipolar kids misinterpret facial cues as hostile

    Children with bipolar disorder are more likely than other kids to read hostility in bland facial expressions, a new study shows. Misinterpreting social cues might contribute to irritability and the unprovoked aggression that bipolar children sometimes direct toward others, the researchers say.

    While the children were misconstruing facial cues, excessive activity arose in brain areas...

    05/31/2006 - 10:30
  • News

    Lazarus, the amphibian

    Missing for more than a decade and feared to be extinct, a painted frog has resurfaced. At least one population of the subspecies Atelopus ebenoides marinkellei remains in a remote desert highland of Colombia, researchers discovered last month.

    In an amphibian-biodiversity survey, team leader Carlos A. Rocha of the Pedagogical and Technological University of Colombia in Boyacá...

    05/31/2006 - 10:01 Earth & Environment
  • News

    Herpes Runs Interference: Researchers discover how virus sticks around

    Herpes simplex virus 1 (HSV-1), which causes cold sores, uses a short, double-stranded RNA to outwit a cell's defensive measures. That's why it can hang out in the body indefinitely, new research suggests. By disrupting this mechanism, scientists may eventually find a way to permanently eradicate herpes infections in people.

    Both HSV-1 and its close relative HSV-2, which typically...

    05/31/2006 - 09:45
  • News

    Pumped-up Poison Ivy: Carbon dioxide boosts plant's size, toxicity

    Whatever troubles climate change might bring to the world's other species, rising carbon dioxide in the atmosphere could be the best thing yet for poison ivy.

    An outdoor experiment mimicking the carbon dioxide rise predicted for this century found that poison ivy vines grew more than twice as much per year as they did in unaltered air, says Jacqueline E. Mohan, now of the Marine...

    05/31/2006 - 09:29 Earth & Environment
  • Letters to the Editor

    Letters from the June 3, 2006, issue of Science News

    Latitude adjustments

    "Shafts of snow sculpted by sun" (SN: 4/1/06, p. 206) doesn't say that penitentes appear only in the Andes, nor does it say in what part of the Andes they appear. Does the formation of penitentes require that the sun be nearly directly overhead for part of the day? Can penitentes form only near the equator?

    Burton LoupeeCedar Rapids, Iowa

    ...

    05/30/2006 - 17:00 Humans & Society
  • News

    Evolving genes may not size up brain

    Two gene variants previously proposed as contributors to the evolution of human brain size exert no influence on brain volume in people today, a new report indicates. If these particular genes indeed spread quickly by natural selection, that process might have been spurred by the genes' effects on reproductive organs or other tissue outside the brain, say neurologist Roger P. Woods of the...

    05/30/2006 - 13:32
  • News

    At iconic Asian temple, monkeys harbor viruses

    Across parts of Asia, Hindu and Buddhist temples often double as sanctuaries for free-ranging monkeys. Such sites can also shelter monkey viruses, a new report indicates.

    Because local residents and tourists frequent these so-called monkey temples, there's potential for cross-species transmission of pathogens, say researchers led by Lisa Jones-Engel of the University of...

    05/30/2006 - 13:17 Biomedicine