A percutaneous path is created into a bone having an interior volume occupied, at least in part, by a cancellous bone, e. The lawnmower includes an engine that draws air through the air intake passageway during the operation thereof. Advantageously, the cobalt layer in the capping layer structure enhances the GMR and soft magnetic properties for thinner freelayer structures while maintaining a desirable slightly negative magnetostriction. The tray further includes a top flange extending at least outwardly each of the opposite side walls, wherein a user may rest the flange on front upper portions of legs when in a supine position, for urinary bladder evacuation into the tray. As long as the RF loopback test circuit indicates proper operational capability of the back-up transceiver, the redundant transceiver can be immediately switched in place of the principal transceiver. The magnetism between the magnets in the bracket and the magnets in the stirring wand forces the stirring wand to rotate in connection with the bracket.