A light fixture unit can include a light source having an optical axis and a light guide body. Adhesive articles can include such biological tissue adhesives or be functionalized to directly adhere to biological tissue without the biological adhesive. The reconstruction algorithm comprises a forward and inverse model. A device for regenerating the exhaust aftertreatment device has a feed line and nozzle for injecting duel upstream of the exhaust aftertreatment device on a periodic basis. The coefficients from the best match polynomial together with the difference data, if any, are then compressed using lossless compression. A coin entry slot having at least an upper or lower edge is dimensioned to allow entry of a coin of a desired maximum width in a substantially on-edge orientation.