The case histories of five patients who experienced blast overpressure in excess of 200-dB peak pressure level are presented. Despite the significance of the sound pressure levels received in a military training accident and the severe injuries that resulted from the blast, these individuals experienced substantial improvement of hearing 1 year later. Undoubtedly, successful surgical interventi...

The process of gas generation for radium sources embedded in metal matrices (or metal capsules) is described in order to obtain the conditions of safe immobilisation of radium sources in metal matrices. For this purpose a simple model describing immobilisation of sources in a metal housing is proposed. Both helium and radon generation is considered near a radium source. Partial pressures of hel...

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The stability of different surface reconstructions on InAs~001! is investigated theoretically and experimentally. Density-functional theory calculations predict four different surface reconstructions to be stable at different chemical potentials. The two dominant reconstructions are the b2 ~234! for high As, and the a2 ~234! for low As overpressure. This trend is confirmed by scanning tunneling...