A method for regulating an electromechanically power-splitting hybrid drive system of a motor vehicle, having an internal combustion engine and two electric motors that are coupled by way of a transmission, as well as an electromechanically power-splitting hybrid drive system for a motor vehicle. The nonvolatile ferroelectric memory device checks horizontal parity of a main memory cell array and stores the parity in a horizontal parity check cell array, and checks vertical parity of a main memory cell array and stores the parity in the vertical parity check cell array. The impurity concentration peaks of the first semiconductor region include a first impurity concentration peak and a second impurity concentration peak being lower than the first impurity concentration peak. The unloading of the set of information releases enough space in the main storage means to allow the execution of the operation. In order to reduce the affect of the ambient-light reflection, adjusting the thickness of the aforementioned layers that the reflected lights generate destructive optical interference and improve the visually perceived contrast of the emitted light. The invention also relates to a kit of parts and the use of the dental composition for producing a means for the inter-oral detection of bacteria.