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E.g., 06/18/2019
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  • people shaking hands
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Your search has returned 11 articles:
  • News

    A long handshake can spread your DNA to objects you didn’t touch

    BALTIMORE — A 10-second handshake could transfer a person’s DNA to an object that the person never touched.

    In handshaking experiments, people who never picked up a knife became the major source of DNA on the handle about 7 percent of the time, forensic scientist Cynthia Cale reported February 21 at the annual meeting of the American Academy of Forensic Sciences. That DNA was transferred...

    02/26/2019 - 14:53 Genetics, Science & Society
  • News

    Genes could record forensic clues to time of death

    Dying, it turns out, is not like flipping a switch. Genes keep working for a while after a person dies, and scientists have used that activity in the lab to pinpoint time of death to within about nine minutes.

    During the first 24 hours after death, genetic changes kick in across various human tissues, creating patterns of activity that can be used to roughly predict when someone died,...

    02/13/2018 - 17:12 Epigenetics, Microbes, Science & Society
  • Feature

    Suicidal Threads

    When sociologist Mike Tomlinson began combing through the health records of people in Northern Ireland, he wasn’t interested in suicide. He was on the hunt for links between poverty and international conflict. But he came across a startling trend. From 1998 to 2008, the rate at which men in their mid-30s to mid-50s were committing suicide rose alarmingly fast, more quickly than the rate for...

    10/19/2012 - 10:23 Mental Health
  • Feature

    Evolution's Evolution

    Just a decade after he published On the Origin of Species, Charles Darwin was already worrying about the evolution of his idea. In an 1869 letter to botanist Joseph Dalton Hooker, Darwin lamented:“If I lived twenty more years and was able to work, how I should have to modify the Origin, and how much the views on all points will have to be...

    01/16/2009 - 21:18 Evolution
  • Feature

    Volume Information

    12/28/1968 - 00:00
  • Feature

    In Science Fields

    09/06/1958 - 00:00