Steroid compounds having various oxygen substitution on the steroid nucleus are disclosed. A feature-based processing stream is applied to video data having a series of video frames. Additionally, or alternatively, an insulator is arranged to inhibit shorting between plasma in the block and a flange of the cathode. The strips are affixed to the outer surface of a bulb form to provide structure to the lamp. The organic acids are selected to reduce side effects induced by the psychotropic drugs andor to exert an anti-proliferative activity.