A push-button switch includes an insulating board, an actuator, an urging body and a push button. A customized gift card displays professionally created artwork, logos and graphics that best portray the provider’s intent for the overall design. After determining the pattern of cellular responses of the mutant cells with the mutant molecule, compounds may be identified capable of inhibiting the wild-type molecule by producing a pattern of cellular responses in wild-type cells matching or having similarity to that of the inhibition of the mutant molecule. A metering device tallies an operating parameter indicative of the amount of electrical energy consumed by the lamp. The element is made by processing carbon powder, resin, solvent and conductive phases to form a paste, applying the paste to a substrate, and curing the paste to drive off the solvent and form a film, with the conductive phases rising to the surface of the film and becoming embedded therein. The invention may be utilized to obtain qualitative and quantitative data regarding the composition of the object under investigation.