Now showing items 21-30 of 296
Characterization and modeling of the pH-regulated expression vector, pSM-10
A new type of plasmid vector has been developed for Escherichia coli. Foreign gene expression can be altered by external pH changes. pSM-10 is the first generation of these plasmid constructs that utilizes the cadA operon ...
The constitution of silica gel
Abstract Not Available.
Dynamics of plasmid-containing cells in a chemostat under transient conditions
One of the major concerns in the utilization of plasmid-containing organisms in fermentation processes is the stability of the plasmid. In general, it is observed that two parameters, the probability of plasmid loss due ...
Effect of shear stress on surface membrane potassium ion permeability of calf pulmonary artery endothelial cells (Potassium ion)
This study aims to determine the effect of shear stress on membrane potassium (K$\sp+$) permeability in vascular endothelial cells. Cultured monolayers of calf pulmonary artery endothelial cells, preloaded with $\rm ...
Effect of novel antithrombotic agents on platelet aggregation under flow conditions
Epi-fluorescence video microscopy and digital image processing were used to evaluate the effects of three novel anti-platelet agents namely GT-12/I.2HBr (GT-12/I), A4.2HBr and IC, a series of compounds containing the ...
Solubilization-emulsification processes in nonionic surfactant-water-liquid triglyceride systems
Liquid triglycerides, the major component of cooking oils, have been found difficult to remove from synthetic fabrics during washing. The relatively strong adhesion force between triglycerides and fabric and their high ...
The effect of process conditions on coal pyrolysis and char reactivity
The effect of process conditions on coal pyrolysis and char reactivity is systematically studied using the thermogravimetric reactor equipped with in-situ video microscopy imaging (TGA/VMI). This system provides a complete ...
Modeling and simulation of monolith reactors
Monolith reactors are studied with models and simulations, with particular attention given to the catalytic converter. It is found that previously noted differences between one- and two-dimensional monolith reactor models ...
Migration of anchorage-dependent mammalian cells
Cell migration affects many physiologic and pathologic processes in mammalian organisms. Thus, our ability to modulate these processes depends on understanding how cell migration is controlled by soluble factors, cell-substrate ...