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negative pressure |
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negative pressure [′neg·əd·iv ′presh·ər] (physics) A way of expressing vacuum; a pressure less than atmospheric or the standard 760 mmHg (101,325 pascals). How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| In school districts with populations that are unhappy with the schools, the opportunity to create charter schools may relieve some of that negative pressure and empower new partnerships within the community. Design allows for adjustment of negative pressure as needed. 1) The mechanism by which vacuum therapy promotes the formation of granulation tissue is not well understood, but it is believed that the negative pressure removes tissue exudate, reduces bacterial contamination that might impede the healing process, and promotes the elaboration of growth factors. |
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