A sectionalized surfboard, which can be dismantled into sections and rejoined for use. The system provides multiple electronic shopping carts for each user. A controller receives and processes signals received from the two detectors to cancel changes in the output of the light source and then apply a modified Beer-Lambert law to determine the concentration of the sterilant gas. The apparatus further includes a compressible and resilient spout integrated with the toroidal section and extending away from the inner side. The less cold compartment and the non-cold compartment are completely dry of water. In particular, the detection, prevention and treatment of infectious diseases and cancer mediated andor indicated by the presence and co-localization of a member of the anti-apoptotic Bcl-2-associated athanogene family, especially Bag4 and membrane-bound heat shock protein on the cell surface of diseased tissue or cells are described.