Biomedical subjects
Publications and source records attributed to K Kirschfeld.
The formation of metarhodopsin in fly photoreceptor no. 1--6 occurs at room temperature with a time constant of 125 microseconds (Q10 approximately 2.5). The formation of rhodopsin is faster by factor of 1/10 to 1/100 at least.
The highly specialized dorsal compound eye of male Simuliids is especially adapted to detect during flight the females which are very small animals (1X3 mm). At dawn, the eye functions close to the physical limit imposed by the quantum fluctuations of light. In birght illuminations, light-qauntum noise is not a limiting factor as can be shown by behavioural experiments.
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