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vis, vice, vise

A spiral staircase generally of stone, whose steps wind around a central shaft or newel; a screw stair.
References in periodicals archive ?
Thus, the VYS seems to be critical during organogenesis until final fetal development in rats, and could also be an important source of MSCs.
The VYS was dissected with the aid of a lighted head-mounted magnifying glass and dissociated mechanically, before being filtered through 30-mm sterile filters, and added to a freezing solution (10% DMSO, 60% RPMI-1640, 30% fetal bovine serum); samples were stored in a -70[degrees]C freezer.
Duplicate samples were subjected to flow cytometry (BD FACScalibur; Becton Dickinson, USA) to characterize VYS cells, and to determine mitochondrial activity, DNA ploidy, cell cycle phases, cell proliferation, and caspase-3 activity.
Soon you will be able to find and book both bus and train tickets in the same place: Vys website and app.
Contract notice: vys - extension of the substation (p.0319), construction and assembly work