A single-stage integrated circuit drives LED sources in a constant power mode to eliminate the need for LED current sensing, while reshaping the waveform of the inductor current near line zero crossing to achieve high power factor. An upright strut shaft is mounted in a strut journal for axial and rotational movement with respect to the journal. For example, the regions representing one of the speakers are set to zero, and the inverted modified display maintains only the speech of the other speaker. The diagnostic tool calculates the burn surface area based on caller relayed information about the areas of the patient’s body that are burned. The source and drain regions are formed in the semiconductor layer. The radial gaps between the conductor pairs are widened in the vicinity of their tail joint portions compared with those in the vicinity of the end surface of a stator core.