Before revision:  For increasing external noise level in stimulation, the efficiency decreased, but for external stimulation strength, the efficiency was highly robust . Using this approach, we succeeded to discuss the relationship between speed of adaptation and rate of thermodynamic cost change in E. coli adaptation.
After revision:  For increasing external noise level in stimulation, the efficiency decreased, but the efficiency was highly robust . Using this approach, we succeeded to discuss the relationship between speed of adaptation and rate of thermodynamic cost change in E. coli adaptation.