A method of forming a cushioning pad includes placing a component formed of polyurethane foam onto a first web of polyethylene foam. In the system, a requestor is connected to control signals. Next, a set of performance parameters of the computer system is monitored during execution of the current expert policy. This invention employs automated means to obtain, for a sample of documents, both presentation data and citation rate data. An electrode layer which is in contact with the oxide semiconductor layer and overlaps with a region in contact with the source electrode layer and the drain electrode layer is provided.