The invention relates to coated optical fibers comprising soft primary coatings and to such primary coatings for protecting glass optical fibers having a sufficient high resistance against cavitation. The results generated by the search engine are displayed in predetermined locations on the results page returned by the search engine. The SAPR method may be applied to next generation OFDMA-based wireless broadband technologies, to increase system throughput and cell coverage. A system for monitoring and maintaining an arsenic removaldisposal system by an off-site provider is also disclosed. The spectrum is altered by sending a signal generated by a random number generator to a delay device and adding the output of the delay device from the output of the random number generator.