Provided is a method of inhibiting growth of androgen receptor positive cancer cells. The proximity switch can be positioned so as to detect a low level of liquid in the vessel or a high level of liquid in the vessel. The first application includes a data structure with a data structure identifier and a table. The bag may be stretchable to increase its internal capacity. The purchased prepaid service is then enabled for the wireless device corresponding to the phone number. A time interval between a time at which the target material is irradiated by each of the pump pulses and a time at which the target material is irradiated by each of its corresponding probe pulses is controlled.