A system and method are disclosed for providing an electrically programmable read only memory in which each memory cell comprises an NMOS select transistor with a thick gate oxide and a PMOS breakdown transistor with a thin gate oxide. A lock at the leading end of the lock arm contacts an edge of an engaging portion on the male housing and then parts therefrom by canceling a rubbing state. The devices include RFID pallet tags that communicate with RFID item tags and RFID beacon tags positioned within distributed RFID networks. The voice band modem is also configured to transmit the series of encoded packets to the remote receiver station as a burst including all of the source data and repeatedly transmit the encoded packets until receiving an indication that the series of packets including all of the source data has been received at the receiving station. As well as the use of the polypeptide in the treatment of a disorder associated with impaired glucose metabolism.