A controller for controlling and monitoring the operation of an engine-generator is disclosed. In one example, a preliminary indication of an episode of cardiac ischemia is detected based on shifts in ST segment elevation within the IEGM. Described herein are systems and methods for providing such multi-protocol operation and maximum interoperability. 0, and obtained by ring-opening polymerization of a polymerizable monomer mixture containing 90 to 100 wt % of 2-norbornene and 0 to 10 wt % of a substituent-containing norbornene monomer, and hydrogenating the resulting polymer, and the amorphous alicyclic structure-containing polymer having a Tg of 50\xb0 C. At least one common node is assigned the preferred node as a relay of information.