GPS and A-GPS based positioning methods can be used to determine UE locations to enable location based services to be provided. A layer of inductor may be placed within the metal layers along with negative capacitance generation circuitry of the present invention to compensate for the capacitance associated with the metal layers adjacent to the inductor to provide a higher quality factor for the inductor. The positive temperature coefficient characteristic is such that the impedance of the polymer increases with increasing temperature. The methods and systems described herein are particularly useful for insurers utilizing non-referral repair shops for servicing vehicles involved in insurance claims. Also disclosed are kits useful in human identification.