A method embodiment includes providing a micro-electromechanical wafer including a polysilicon layer having a first and a second portion. The training symbol storage and generation unit stores training symbols for the preamble, and outputs the stored training symbols when a training symbol output request signal is received. 0, an X-ray random intensity ratio of a {332} <113> crystal orientation of 1. The player then attempts to strike the contact targets in a pattern that matches the sequence. In one embodiment the bedding structure is a mattress or pad, and the soothing device is a battery powered heartbeat simulator with a pressure sensitiye switch to activate the simulator when an animal lies upon the bedding and deactivate the simulator when the animal rises from the bedding. The apparatus can be used for making several phase envelope measurements without risk of contamination.