In one embodiment, the semiconductor memory device includes at least a first semiconductor memory die, and a surface of the semiconductor memory device includes a plurality of connectors. The composition comprises: a biocompatible block copolymer comprising one or more elastomeric blocks and one or more thermoplastic blocks and a therapeutic agent, wherein the block copolymer is loaded with the therapeutic agent. Pressure measurements are performed of the permeate hydrogen stream. Carriers can include acid copolymers, acid terpolymers, ionomers, polyethylenes, ethylene vinyl acetate, and ethylene methacrylate. Thus an EL element can emit light at a luminance linearly corresponding to the inputted analog signal voltage.