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Introduction Tumor-associated macrophages, which are derived from the infiltration of circulating bone marrow-derived monocytes, consist primarily of a polarized M2 macrophage (M2-Mϕ) population and are associated with poor prognosis in various cancers. In the present study, we attempted to assess whether M2-Mϕs derived from bone marrow stimulate the promotion and progression of mammary tumors. ...
To investigate gas molecules' “Beaming Effect” when passing through cylindrical tube in free molecular flow, the molecules are divided into “directly passing” ones which pass through from inlet to outlet directly and “reflective” ones which are reflected from tube inner wall to outlet or inlet, then an analytical mathematical models for the two kinds are established. Applying the math tool MATLAB,...
Atmospheric aerosols were collected from October 1990 to February 1992 in northern Kyushu (Tsushima and Ogori), Japan and Seoul, Korea, simultaneously using identical sampling system and chemical analysis methods. Observed data were analyzed with meteorological data to clarify the seasonal variations in aerosol concentration and composition. Dominant ion components of aerosol were SO 2-...
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