A method for operating a base station for Multicast Broadcast Services in a wireless communication system that uses a multi-carrier is provided. If no successful acknowledgement is received for a transmitted message, the message is re-transmitted when the message queue executes. Organophosphorus hydrolases that are capable of detoxifying organophosphorus compounds that are: chemical weapons agents, in particular, tabun, sarin, soman, cyclosarin, VX, and its isometric analog Russian VX ; chemical weapons agent analogs, chemical weapons surrogates; and pesticides are most preferred. Furthermore, because the program design in the microprocessor, the illuminating element, through an asynchronous color mixing theory, can provide various colors to be set by the user for complying the backlight of the analog instrument panel with the like and demands of the user.