A method for heating a subterranean formation includes the steps of positioning a well to a subterranean formation; disposing an energy transforming material in the formation; and exposing the material to energy whereby the material generates heat. More particularly, the present invention relates to oxazolidinone derivatives having pyridine or pyrimidine moeity substituted by heterocycle and heteroaromaticcycle at 4-position of phenyl ring. A control frame may be broadcast over the CAN automation network by the at least one sending device, the control frame encapsulated into a CAN extended data frame. A treatment medium is also provided within the housing. The invention further provides intermediates useful in the preparation of such agonists, and processes useful in the production of such intermediates. Upon playback, a recognizable version of the sub-sampled HDTV signal is displayed on an SDTV receiver.