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冷凍研磨機

021-57790908

咨詢熱線

021-57790908
上海市閔行區七莘路1839號財富108廣場南樓2510室
傳真:021-57790918

LCI韓國

其他設備(電生理/IVF)

發布時間:2020/02/26 點擊量:
  • 產品價格:在線詢價
  • 產品品牌:LCI
  • 產品型號:
  • 產品規格:臺
  • 產品類型:LCI韓國
  • 咨詢電話:021-57790908

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Multistep paradigm for leukocyte recruitment.
(a) Model of a post-capillary venule illustrating the four steps of leukocyte recruitment. These are (1) initial attachment (2) low-velocity rolling (3) arrest and activation of leukocyte integrin via locally expressed chemokines and (4) transmigration. (b) Fluid shear stress. In small venules, flow has been calculated as laminar shear stress with a parabolic velocity profile (minimum velocity at the vessel wall, maximum at the center line of the vessel). Fluid shear stress also can act directly on endothelial cells and T cells. (EC, endothelial cell; BM, basement membrane.) (Reprinted with permission from Alper, J. Searching for medicine's sweet spot. Science 291, 2338−2243 (2001).). Copyright American Association for the Advancement of Science. Original illustration by C. Cain, redrawn by B. Crimi.)

 

 

 

 

 

 

 

 

 

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