A method for communication includes allocating, in a multiple-access communication system that uses multiple subcarriers, first subcarriers to a first communication terminal for transmitting first data, and second subcarriers to a second communication terminal for transmitting second data. The outer frame has a first length greater than the first width, wherein movement of at least one of the frame portions away from the other frame portion increases the outer frame to a third length greater than the first length. Then mobile station 16 receives a SDF from trusted server device 18, which is identified by data contained in the ADF. The display unit electrically connected to the control chip displays a voltage value of the feedback voltage according to the display information. The compound or a salt is useful as a ligand of inositol-1,4,5-trisphosphate receptor. The locking member is slidable from a first position at a side of the receiving groove to a second position on a top of the receiving groove, and is latched at the second position, thereby pressing opposite ends of the surface contact card.