A cold-cathode ray tube is adopted as an exposure lamp and the exposure lamp is always lit. In one aspect of the invention, compounds useful in the inhibition of VEGF production, in the treatment of solid tumor cancer, and in reducing plasma andor tumor VEGF levels, are provided. The interface is further configured to transfer the content to the request source when the request source is a valid destination. Various embodiments of the invention are provided, including an electromagnet and an electromagnetic brake.