نتایج جستجو برای: ear protective device
تعداد نتایج: 823933 فیلتر نتایج به سال:
background and purpose: many workers are exposed to workplace hazards. many occupational diseases are preventable by personal protective devices (ppds). though many workers do not use ppds or their protection by ppds is not sufficient. this study was designed to assess the quality of ppds usage among industrial workers. materials and methods: in a cross-sectional study, 648 workers from four ma...
COMPARISON OF ATTENUATION CHARACTERISTICS OF THE ACOUSTIC REFLEX AND THE V-5IR EARPLUG OBJECT To compare the attenuation characteristics of the acoustic reflex and the V-5IR earplug, RESULTS Pre-and post-exposure thresholds were obtained for 13 subjects exposed under two conditions to 100 rounds of machine gun fire (fired one round at a time). In condition I the acoustic reflex (AR) was activat...
COMPARISON OF ATTENUATION CHARACTERISTICS OF THE ACOUSTIC REFLEX AND THE V-5IR EARPLUG OBJECT To compare the attenuation characteristics of the acoustic reflex and the V-5IR earplug, RESULTS Pre-and post-exposure thresholds were obtained for 13 subjects exposed under two conditions to 100 rounds of machine gun fire (fired one round at a time). In condition I the acoustic reflex (AR) was activat...
UNLABELLED Pop-rock musicians are at risk of developing hearing loss and other symptoms related to amplified music. AIM The aim of the present study was to assess the satisfaction provided by the use of hearing protection in pop-rock musicians. STUDY DESIGN Contemporary cohort study. MATERIALS AND METHODS A study of 23 male pop-rock musicians, aged between 25 to 45 years. After audiologic...
background: noise-induced hearing loss (nihl) is one of the most common occupational diseases and the second most common cause of workers' claims for occupational injuries. objective: due to high prevalence of nihl and several reports of improper use of hearing protective devices (hpds), we conducted this study to compare the effect of face-to-face training in effective use of earplugs with app...
background hearing capability plays a principal role on human's communication. noise-induced hearing loss (nihl) caused by exposure to high noise levels is a serious socio-economic problem in modern societies. nihl can either be reversible, resulting in a temporary threshold shifts (tts) or irreversible, resulting in a permanent threshold shifts (pts). pts is often confirmed in the time span of...
Introduction: Noise-induced hearing loss (NIHL) is a major problem in industrialized and developing countries. Trend of industrialization and lack of proper protective equipment lead to an increased frequency of noise-related disorders especially NIHL. This study was conducted to investigate noise pollution and the frequency of NIHL in workers of one of the ceramic industries. Materials and ...
Abstract Background: Noise, as the most common industrial hazard, besides hearing loss may have adverse effects on other body systems. Many studies have demonstrated the adverse effects of noise on the cardiovascular system. Using personal protective devices is one of the methods for reducing noise exposure. Controlling noise exposure by means of personal protective devices theoretically reduc...
This study examined whether electrophysiological and psycho-acoustic auditory measures would refl ect changes following use for one year of a personal ear-level frequency-modulated (FM) device in a group of children with symptoms of central auditory processing disorder (CAPD). Subjects consisted of 10 children aged 7 to 14 years with normal hearing thresholds, suspected CAPD, and additional att...
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