منابع مشابه
assessment of impulse noise level and acoustic trauma in military personnel
background: military personnel are usually exposed to high levels of impulse noise (in) which can lead to hearing loss. objectives: the purpose of this study was to assess the effects of relatively low level exposure of impulse noise (in) during shooting practice on hearing using pure tone audiometry (pta) and transiently evoked otoacoustic emission (teoae) in military personnel. materials and ...
متن کاملOceanic ambient noise as a background to acoustic neutrino detection
Ambient noise measured in the deep ocean is studied in the context of a search for signals from ultrahigh-energy cosmic ray neutrinos. The spectral shape of the noise at the relevant high frequencies is found to be very stable for an extensive data set collected over several months from 49 hydrophones mounted near the bottom of the ocean at 1600 m depth. The slopes of the ambient noise spectra ...
متن کاملMagnesium therapy in acoustic trauma.
Acoustic trauma is one of the major causes of hearing loss and tinnitus, particularly in industrial environments. Noise-induced hearing loss (NIHL) results in direct mechanical damage as well as in indirect metabolic processes. Metabolic disorders have multiple origins: ionic, ischemic, excitotoxic and production of cochlear free radicals causing cell death, due to necrosis or apoptosis. The ef...
متن کاملEnriched acoustic environment after noise trauma reduces hearing loss and prevents cortical map reorganization.
Exposure to sound of sufficient duration and level causes permanent damage to the peripheral auditory system, which results in the reorganization of the cortical tonotopic map. The changes are such that neurons with pre-exposure tuning to frequencies in the hearing loss range now become tuned to frequencies near the near-normal lower boundary of the hearing loss range, which thus becomes over r...
متن کاملAssessment of Impulse Noise Level and Acoustic Trauma in Military Personnel
BACKGROUND Military personnel are usually exposed to high levels of impulse noise (IN) which can lead to hearing loss. OBJECTIVES The purpose of this study was to assess the effects of relatively low level exposure of impulse noise (IN) during shooting practice on hearing using pure tone audiometry (PTA) and transiently evoked otoacoustic emission (TEOAE) in military personnel. MATERIALS AN...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nippon Jibiinkoka Gakkai Kaiho
سال: 1955
ISSN: 0030-6622,1883-0854
DOI: 10.3950/jibiinkoka.58.1363