Harmful effects of the sun are becoming more prominent than they have been in the past. In particular, a chemical modification of proteins at their N-termini via a transamination reaction to form homogeneous adducts such as, the corresponding oxime derivatives is provided. The encoding methods and apparatus select from the codebooks codevectors andor associated gain factors by minimizing a measure of the difference between the audio signal and a reconstruction of the audio signal derived from the codebook excitations. Fuelling such liquid fuel composition in an internal combustion engine improves the fuel economy performance of an internal combustion engine. The organic electronic component has recesses in which the conductor trackselectrodes are arranged and which are burnt in by means of laser in the production procedure.