A system for extracting a signal component from an output signal of a dynamic system. The compositions can be for internal administration of a therapeutically effective amount of pharmacologically active, protease inhibiting, aqueous media soluble polysulfonated materials in salt form and associated with a secondary material to reduce one or more of inflammation, bacterial proliferation, proteolytic activity, and cancerous cell growth. The controller also initiates at least one available time slot request to also serve the communication link with a neighboring mobile node based upon link communications demand, while processing multiple received available time slot requests from neighboring mobile nodes. Another aspect provides a plurality of transmitting telecoils arranged such that each telecoil has a different orientation, and a plurality of switches for controlling which transmitting telecoil is active.