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  Tiny mechanical wrist gives new dexterity to needlescopic surgery

  • Posted by Milton Bertrand
  • August 4, 2015
  • 0 comments
  • 0 endorses
  • 4,150 views

  A mechanical wrist less than 1/16th of an inch thick -- small enough to use in needlescopic surgery, the least invasive form of minimally invasive surgery -- has been created by scientists. Needlescopic surgery, which uses surgical instruments shrunk to...  moreA mechanical wrist less than 1/16th of an inch thick -- small enough to use in needlescopic surgery, the least invasive form of minimally invasive surgery -- has been created by scientists. Needlescopic surgery, which uses surgical instruments shrunk to the diameter of a sewing needle, is the ultimate form of minimally invasive surgery. The needle-sized incisions it requires are so small that they can be sealed with surgical tape and usually heal without leaving a scar.  
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  Does knowing high-status people help or hurt?

  • Posted by Milton Bertrand
  • October 3, 2015
  • 0 comments
  • 0 endorses
  • 13,183 views

  How happy you are may have something to do with who you know -- and where you come from. A sociology professor, set out to discover whether knowing high-status people helped or harmed mental health, using depressive symptoms as a proxy.
  
  Using nation...