Glutamine is administered orally at a rate of about 4. These aminosilanes, in contrast, to some of the precursors employed heretofore, are liquid at room temperature and pressure allowing for convenient handling. Nonlinear junctions of small dimension are used to rectify an alternating waveform induced upon the conductors by the lightwave electromagnetic energy. The triggering devices are acted by a guarding plate located at the closing side, and are subjected to a touch piece located at the door in the other way.