A powered dispenser for dispensing individual sheet segments from a continuous roll of sheet material provided with spaced tear lines comprises a powered feed mechanism, a releasable, powered drive mechanism, a powered transfer mechanism, a pair of web sensing sensors, a capacitive sensing system providing automatic sensitivity adjustment, and control circuitry. Therefore, the present invention provides a peptide having the amino acid sequence selected from the group of SEQ ID NOs: 3, 4, 9, 23, 25, 30, 60, 63 and 68. Furthermore, a latch in the phase-domain \u0394\u03a3 modulator provides a bit stream by sampling one or more bits of the filtered demodulated phase error, where an average value of the bit stream represents the phase. The first and second image data sets are stored on at least one memory device.