An apparatus and method for determining the orientation of Earth’s magnetic poles. Operation of an engine is regulated to increase the catalyst temperature when the catalyst temperature is less than a threshold catalyst temperature during the limp-home mode. The NTC-1 solution is prepared by mixing solution \u201cA\u201d comprising organic acid, HF, and nitric acid with a 49% HF solution. When there is an emergency, a user pulls on a pivotal handle to puncture membranes in the hoses and to lower the tray assembly to cause flow from the bags to the nozzles to the user’s face. The detection step primers are preferably selected so as to span the region immediately toward the 3 end from the variable nucleotide to be detected. The composition contains a preformed thermoplastic or elastomeric polymeroligomer with reactive end groups, a monofunctional andor bifunctional acrylate monomer, a multifunctional acrylatedmethacrylated monomer, a photoinitiator and a fluorocarbon polymer powder as an organic filler which is preferably PTFE and an inorganic filler such as talc.