A method and apparatus for removing or inserting a mutator shaft from a scraped surface heat exchanger assembly comprising a split shaft design to form a plurality of mutator shaft segments. The present invention further relates to compositions comprising said 1,1,3-tri-substituted ureas which inhibit the extracellular release of inflammatory cytokines, and methods for preventing, abating, or otherwise controlling enzymes which are understood to be the active components responsible for the herein described disease states. The first level bit mask is accessible to all nodes and contains a bit per node, the bit indicating whether the corresponding node contains a processor that has not yet passed through a quiescent state. At least one of the identified sequences of the character codes in the input string is replaced with the respective extension character code so as to generate a modified string. The comparator outputs a detection signal indicative of the presence of the multiplex signal when the potential held by the second capacitor is higher than that held by the first capacitor. A client processes the transmitted segments based on the positioning information to reconstruct the media.