The design of custom integrated circuits is an instance of the more general problem of the design of complex systems. Certainly if circuits are to be designed that contain between half a million and a million transistors, then techniques for the design of complex systems must be introduced that will assure quick, correct, and economical construction of the fabricated circuits. The established m...

The cytochrome P-450 dependent monooxygenase system of rat liver microsomes is investigated by light dosimetry (action spectroscopy). The scoparone-O-demethylation activity is enhanced by light and depends on the wavelength of the irradiating light. The relative increase of the activity (about 15%) by the irradiating light (approximately 0.5 mW/cm2) is maximal at a wavelength of 400 nm. The lig...