Neural regeneration peptide consisting of a sequence comprised in the sequence of REGRRAAPGRAGG. The feeding device comprises an opening that may be opened or closed in order to displace seeds from a feeding chamber to fill a seed cup. A signal indicating the end of one line is counted by a line counter of a memory device. A latch is connected to the frame assembly and is moved by contact with the cam member from a latched position preventing access to the storage device in the housing to an unlatched position permitting access to the storage device. The iterative updating includes calculating an error value; and applying a linearizing factor to the error value.