A matrix, including epithelial basement membrane, for inducing repair of mammalian tissue defects and in vitro cell propagation derived from epithelial tissues of a warm-blooded vertebrate. Electrode sensor arrays are positioned in vertically spaced relation to each other on the optical fiber for generating warning signals in response to detection of hostile conditions. The system may configure at least one binary search tree using the memory chunks as nodes and buffer a set of pointers corresponding to the memory blocks. In another aspect, the invention is directed to the use of a coalescing filter in a scrubbing unit.