A drive system for a brushless motor. In the method, a mixture of sequence-specific probes are reacted with the target polynucleotide under hybridization conditions, and the hybridized probes are treated to selectively modify those probes which are bound to the target polynucleotide in a base-specific manner. In general, the method includes applying a composition to a non-woven web using a non-impact printer, such as an ink jet printer. Then, the medically pure oxygen is separated from any of the aqueous reaction mixture and ported via a built-in humidifier to a CPR mask through a tube attached to the oxygen generator. The kit can also include a butt plate securing unit configured and arranged to secure the butt plate of a firearm and including a securing mechanism configured and arranged to generate a holding force between the apparatus and a surface in response to an applied pressure.