Swimming goggles or diving masks having a polarized lens of the present invention include a sealed polarized lens unit. The present invention also includes various screening assay for the identification of chemopreventive and therapeutic agents. The apparatus 10 contains an NO2-gas-feeding apparatus 14 for feeding NO2 gas into the desulfurization tower 12. The coupling and closing member can also have structures for fixedly attaching the member to a vehicle structure. The assembly is then cured to yield a bonded and fully or near-fully dense part that has the desired physical and mechanical properties for the part’s intended purpose. One or more intermediate signals may be automatically combined or aggregated to generate a detection conclusion for a submission.