A novel class of cationic peptides having antimicrobial activity is disclosed. A method of manufacturing a field coil for an electromagnetic rotor includes the steps of a) providing a field coil comprising multiple layers of copper bars; b) coating the multiple layers of the field coil with a powder resin having a dielectric strength of at least about 1000-1500 vmil. The substrate includes a first surface and a second surface, wherein the first surface is opposite to the second surface. In another example, a hyperlink is positioned adjacent to a total amount owed listed on an electronically-displayed billing statement. Means for Solving the Problem A method of filling copper in a non-through hole on a substrate that has been treated to render it conductive, which comprises plating said substrate in an acidic copper plating bath comprising a water-soluble copper salt, sulfuric acid and a filling additive that is a polymer having the activities of both of a brightener and a leveler.