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Previous photoselection measurements showed that if the excitation is weak no optical anisotropy changes appear in immobilized purple membranes during the photocycle. The present study demonstrates that surprisingly at stronger excitations the anisotropy changes versus time. At 412 nm the dichroic ratio decreases after a few milliseconds, while at 570 nm(More)
On capturing a quantum of light, the bacteriorhodopsin of Halobacterium halobium undergoes a photocycle involving different intermediates. The exact scheme of the photocycle and especially the number of M intermediates are subjects of debate. For a quantitative analysis of many effects connected with the photocycle, e.g. the effect of the membrane potential(More)
The aim of the study was to determine any alteration of the 24 h motor activity pattern of a bipolar patient in different mood states. Actigraphic records were collected on an outpatient basis for a total of 387 days. The daily actograms were synchronized in phase to the time of morning awakening before averaging, which significantly enhanced the structure(More)
Although the general principles of the chemiosmotic coupling theory have become widely accepted, the (degree of) loc(aliz)ation of electrochemical proton potential difference cannot yet be deduced from the existing experimental data. Many results are not in ready accordance with the idea that one protonic electrochemical potential difference, i.e. the one(More)
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