A vision prosthesis includes an optical element having a characteristic function associated with refraction therethrough. Thereafter, the modems identified on each discrete list are polled at a rate that may differ from the rate at which the modems identified on any other list are polled and the lists are updated dynamically based upon the behavior of the modems polled in response to the last polling. Wireless configuration information may be stored on a home-networking gateway or router and used to configure one or more wireless access points through the use of a physical connection, such as a wired communications pathway. In a continuous polymerization of ethylene and vinyl acetate in a polymerizing vessel with a cooling jacket andor coil, the heat transfer area of the jacket andor coil and the polymerizing calorific value per hour satisfy the following formula:. The sending unit must synchronize such operations to ensure data coherency and proper timing.