Asymmetric charge-balanced stimulation waveforms are defined and used for CNS stimulation with selective stimulation of either neuronal cell bodies or axon fibers of passage in favor of the other. A perpendicular or tilted orientation of the liquid crystal molecules at the surface of the liquid dropletgas bubble causes distortions, such that the fore-aft symmetry of the liquid dropletgas bubble is broken. -3 series such as eicosapentaenoic acid, docosahexaenoic acid, or their pharmaceutically acceptable derivatives is described for the primary prevention of major cardiovascular events in subjects who have not undergone previous infarct episodes. One determination of partial obstruction of the airway is performed by detecting the inspiratory part of the air flow signal, scaling it to unity duration and area and calculating an index value of the amplitude of the scaled signal over a mid-portion. In this way, forces that are applied to the weighing scale by the placement of a load on the platform are transferred to the plurality of force transfer beams, without direct interaction between the mounting tray and the support surface.