The present invention pertains to animal harnesses and particularly to animal reins. Circumferentially adjoining chevrons extend from the duct aft end around only an arcuate portion thereof leaving a plain arcuate shelf between terminal ones of the chevrons. Female electrode bodies electrically connected to power supply terminals of the respective battery modules are collectively positioned in a limited area and are arranged at equal intervals on the safety plug unit connecting base. The preferred material for forming the matrix or support structure is a biocompatible synthetic polymer which degrades in a controlled manner by hydrolysis into harmless metabolites, for example, polyglycolic acid, polylactic acid, polyorthoester, polyanhydride, or copolymers thereof. Data representative of the updated version of the file is transmitted to the designated recipients of the updated version. Even in a semiconductor integrated circuit having a plurality of memory banks each including the plurality of memory cell blocks, the first decoder, and the second decoder, it is possible to reduce power consumption when the redundancy memory cell rows operates.