A washing machine and a method are provided for changing system data which allow a user to identify problems with the product itself, installation, problems due to regional characteristics, changes in use, and the like, and to change system operation data accordingly. Formula IR1ZnR2wherein R1 and R2 are same or different and include an alkyl group containing 1 to 5 carbon atoms. Using the financial derivative instrument, an entity can hedge against unexpected fluctuations of healthcare costs. The antenna system comprises a first feeding structure and a radiating segment. A bulk terminal of each of the MOS transistors 5a and 6a is connected to one terminal of a resistor 19, a voltage is applied to the other terminal of the resistor 19, the bulk terminal of each of the MOS transistors 5a and 6a is connected to one terminal of a capacitor 20, and the other terminal of the capacitor 20 is grounded. In some embodiments, two carrier signals are transmitted on different frequencies to one or more user devices that support multi-carrier operation, and different global cell identifiers are broadcast on the two carrier signals.