Techniques for generating oscillator signals in a wireless communication device are described. Generally, the features comprise a protruding member mounted between a supporting substrate and the transverse cantilever beam of a microelectronic spring structure, at a distance spaced apart from the supporting structure from which the beam is cantilevered. The antibodies recognize conformational epitopes that are conserved across multiple genotypes of HCV. The panels include complimentary fastening members that allow the curved side panels to be connected end to end so as to form a circular fluid storage tank in conjunction with a floor mat. With such a design high concentrated mineral suspension can be treated in a centrifuge to separate different fractions of solids. The snap-in design allows a lip balm cartridge to be loaded and unloaded from the pen.