A bow string release includes a retention portion having an interior area for containing a portion of a bow string and a barrier for selectively separating the interior area from an area external thereto. A bias voltage unit is coupled to the detecting element, so that they have a common voltage level to avoid noises when the circuit is operating. First and second cross members respectively interconnect the upper ends of the first and second set of pillars. Each bitslice also includes circuitry for detecting a potential error in the speculative sum such that the speculative sum can be corrected when there is a potential error. The storage system is a juke box configuration of slots wherein individual pods are randomly stored in the slots to permit data extraction, charging, testing and synchronizing without opening the pods. The processing significantly improves selectivity and specificity of detection objects and events in a series of motions that may precede a patient who is at elevated risk of falling.