Low chlorine, multi-staged method for producing cycloaliphatic diisocyanates. An example unit cell of a non-volatile memory, such as a PRAM, includes a MOS transistor, connected to an address line and a data line, where the MOS transistor receives a voltage from the data line. The shell images may include various colors, pictures, designs, logos, or even text. Also disclosed is a means for selectively disconnecting unused inputs from internal logic, thereby further increasing switching speed across cells utilizing this bypass routing. In other embodiments, the physiological cooling agent is present with menthol and menthone and coated chewing gum has a coating that comprises a physiological cooling agent.