نتایج جستجو برای: who stepwise
تعداد نتایج: 812310 فیلتر نتایج به سال:
The question whether aminoacyl-tRNA synthetases act in a stepwise or in a concerted mechanism has been investigated kinetically with the valine enzyme of Escherichia coli, which had been used in previous studies by others who concluded that the physiological mechanism is concerted. An exchange between aminoacyl-tRNA and tRNA, dependent upon AMP, was studied. PP-i inhibits this exchange complete...
The purpose of this study was to determine how breathing protocols requiring varying degrees of control affect cardiovascular dynamics. We measured inspiratory volume, end-tidal CO2, R-R interval, and arterial pressure spectral power in 10 volunteers who followed the following 5 breathing protocols: 1) uncontrolled breathing for 5 min; 2) stepwise frequency breathing (at 0.3, 0.25, 0.2, 0.15, 0...
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