An antenna includes an electrical excitation component and a core component. The technique including forming active areas of a first conductivity type and LDD regions of a second conductivity type resulting in a transistor that is always non-operational when standard voltages are applied to the device. A wide variety of methods may be used to contact the target cell with the inhibitor, especially introducing into the cell a polynucleotide encoding the inhibitor under conditions whereby the inhibitor is expressed in the cell. ; and a step of discharging, discharging the catalyzed exhaust. The apparatus may further include a second layer between the second conducting layer and a third conducting layer. The service provider determines the identity of the owner, and informs the owner that an item of jewelry bearing his or her code has been found.