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Spin-dependent lepton-nucleon scattering data have been used to investigate the validity of the concept of quark-hadron duality for the spin asymmetry A1. Longitudinally polarized positrons were scattered off a longitudinally polarized hydrogen target for values of Q2 between 1.2 and 12 GeV2 and values of W2 between 1 and 4 GeV2. The average double-spin(More)
Dramatic changes in technology have considerably changed the scope of practice of the audiologist. The advent of the digitally programmable hearing aid promises to provide improved speech recognition for hearing-impaired listeners. The current emphasis in hearing aid research is on the enhancement of the technology and instrumentation necessary to measure(More)
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