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Your search has returned 40 articles:
  • News

    Aging Factor: Gene mutations may be key to long life

    Juicing up with growth hormones may build muscles, but probably won't help you live to see 100 candles on your birthday cake, a new study suggests.

    A study of 384 aged Ashkenazi Jews shows that a decrease in insulinlike growth factor 1 (IGF-1) activity is associated with long life, Nir Barzilai and his colleagues report in the March 4 Proceedings of the National Academy of Sciences....

    03/05/2008 - 12:28
  • News

    Riff Riders: Brain scans tune in to jazz improvisers

    It would come as no surprise to the late saxophonist and improvisational master John Coltrane, but when accomplished jazz musicians play free-form, their brain activity suggests a release of self-expression from conscious monitoring and self-censorship.

    Such neural activity may lie at the heart of musical improvisation and perhaps other improvisational feats, propose auditory scientist...

    03/05/2008 - 12:14
  • News

    Ancient Chasm: Parts of Grand Canyon may be 17 million years old

    Studies of mineral formations found in caves in the walls of the Grand Canyon and nearby may provide fresh insight into the chasm's history, including its age and the rate at which it was carved.

    Many of these caves contain mammillaries, mound-shaped lumps of carbonate minerals that typically form just below the surface of mineral-rich pools. Thus such deposits mark the...

    03/05/2008 - 10:45 Earth
  • News

    Cancer Risk: Colon growths might not be so obvious

    The fight against colorectal cancer, by most accounts, is going well. With colonoscopy, doctors can prevent most of these malignancies by detecting and removing polyps, growths along the colon that can be precancerous. But some people who have had polyps removed or who have gotten a clean checkup still get diagnosed as having colorectal cancer a few years later.

    A new study suggests...

    03/05/2008 - 10:28 Biomedicine
  • News

    Finding mass graves from on high

    From Washington, D.C., at a meeting of the American Academy of Forensic Sciences

    Aerial surveys that scan the ground at many wavelengths, some visible and some not, may offer a way to quickly and easily detect clandestine mass grave sites.

    During field tests in Costa Rica, Margaret Kalacska, a remote-sensing analyst at Simon Fraser University in Burnaby, British Columbia, and her...

    03/04/2008 - 15:24 Technology