A folded folder track with sliding tab either writable andor channel tab which travels along the folded track area of the folder whereby the user can position the tab wherever it is needed along the top horizontal edge of the folder. The disclosed compounds can be used to prevent the spread of tumor or other types of cancer cells. The image sensor may generate control signals for use in a variety of automatic vehicle equipment controls and may be incorporated into an automotive vehicle such as by inclusion into a rearview mirror assembly. Also, a surgical instrument organizer assembly for supportingly receiving surgical instruments is provided, and includes an instrument stand and at least one clamp positionably coupled to the instrument stand.