Aspects of invention may allow an operator to recognize that a search corresponding to search conditions set in a search folder does not function when such case occurs. Each tine functions as a two stage spring to supply a normal force that urges the tine toward the center of the socket. Each of the plurality of memory planes comprises a plurality of memory cells. The method of the present invention enables the rapid and economical fabrication and screening of a large number of different compositions. A receiver holds data indicative of the future transmission frequency and time for each transmitter and updates the data based on the time and the content of the received messages.