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Monolayer cultures of 12-day embryonic chick skeletal muscle were prepared from cells dissociated with crude trypsin (Difco 1:250) and by a mechanical method that utilizes shearing forces obtained in a vortex of flowing medium. For each technique, experiments were performed in which the feeding schedule and density of cells planted were varied. Culture… (More)
Wonderful News! The Final Draft International Standard (FDIS) Ballot on ASIS was approved! ASIS will be shortly available as an International Standard! Twenty-three Nations voted to approve ASIS as an International Standard (there were 0 nations voting for disapproval and 7 nations abstained). The name of the new standard will likely be: There is some… (More)
CONTEXT A substantial number of patients with head and neck paragangliomas (HNPGLs) have biochemically active tumors, evidenced by increased urinary excretion of catecholamines and metabolites, including 3-methoxytyramine (3MT). It is unclear whether plasma levels of these parameters are more sensitive to detect biochemical activity in HNPGL patients than… (More)
Various insecticides, solvents, emulsifiers, and mixtures thereof were tested to determine whether these compounds are capable of enhancing the sensitivity of cultured mammalian cells to infection with vesicular stomatitis virus. None of 42 compounds tested significantly enhanced the viral infection.