A method and circuit arrangement utilize secure clear instructions defined in an instruction set architecture for a processing unit to clear, overwrite or otherwise restrict unauthorized access to the internal architected state of the processing unit in association with context switch operations. The patent application further relates to the use of Rotigotine in the production of the cement layer of a TTS by a hot-melt method. An optical information processing apparatus 1 having the photoelectric conversion element array of the present invention, and an optical wave guide 3 opposed to the respective optics of the photoelectric conversion element arrays. This angular position information is further converted to the viscosity of the tested fluid.