Described are mechanically robust, thermally managed battery module constructions including a battery case, a reinforcing divider in the case, and battery cells housed by the reinforcing divider. In one aspect of the invention, a tissue culture medium is provided which comprises at least 50% of water and a sterol compound that is dissolved in a fatty acid-containing oil at a concentration at least 0. The axial tube accommodates the sleeve bearing which bears an axial hole through which the shaft of the motor rotor is freely extended. Separate digitized streams representative of telephone signals received from the mobile telecommunications switching office are generated corresponding to the microcell antenna units and the separate digitized streams are multiplexed and transmitted to the remote unit. The data driver outputs a pixel signal to the data line of the each liquid crystal cell according to a data control signal.