Pharmaceutical formulations containing lipoic acid derivatives and ion pairs thereof are described. In one embodiment, a first agent changes the state of a first data and forwards it to a second, requesting agent who stores the first data in an alternative modified state. The internal pressure and expansion of the inflatable member are monitored. Alternatively, the portable wall-partition can include a plurality of wall panels. Some embodiments can include both master and slave modes, and can switch between slave and master modes depending on availability of the media stream from another streaming media box operating in master mode.