Apparatus, methods, compositions, and kits for improved luminescence assays. While the open email message is displayed to the user, intent of the user to perform an action that will result in closing the open email message is detected. The storage assembly includes a pan, an open adjustable brace and a restraint which are all used to secure items to the apparatus. The digital signal generator includes: a delay module coupled to the pulse, for delaying the pulse to generate a plurality of delayed pulses according to a plurality of delay amounts, respectively; and a sampling module coupled to the delay module for sampling the pulse to generate the logic values according to the delayed pulses, respectively. In a power-down mode, the clock input enable signal is deactivated in response to a clock enable signal and the clock output enable signal is deactivated after a predetermined number of clock cycles that are necessary for the latched first clock signal to be completely transferred through the delay cells of the DLL to an output terminal of the DLL. Novel compositions using the film-forming carrier are also useful to treat a variety of adverse skin disorders, and internal physiological conditions.