An underwater housing includes a housing body for containing an electronic device, a seal cap for sealing a rear end opening of the housing body, and a spacer member for dividing a space between the housing body and the seal cap into a cable chamber and an accommodating chamber. Configuration logic in the IC is designed to generate control data by decoding configuration signals that include the first configuration signal. The SQL server uses the data and the Na\xefve Bayes model to develop the data mining tool. Therefore, a drive capability of a bus can be altered according to a region to which an access is made by a CPU or the like, thereby enabling prevention of unnecessary power consumption and generation of noise. The methods involve administering an effective amount of -2-4–2,3,9-trimethyl-6H-thieno3,2-f1,2,4triazolo4,3-a1,4diazepin-6-yl-N-acetamide or a dihydrate thereof to the mammal.