نتایج جستجو برای: hearing in noise
تعداد نتایج: 17014750 فیلتر نتایج به سال:
Background & Objectives : Worker exposure conditions such as noise level, exposure duration, use of hearing protection devices and health behaviors are commonly related to noise induced hearing loss. The objective of this study was risk assessment of influence factors on occupational hearing loss in noise exposed workers in typical noisy process . Methods : Information abo...
Introduction: According to previous researches, working at the airport is one of the most vociferous jobs in the world. Airport workers are at risk of noise induced hearing loss. The present study was done to evaluate the Sound Pressure Level (SPL) in the closest aprons to Ground Safety department at Mehrabad airport and to investigate the effect of airport noise on the employees of this depart...
Background and Aim: Autotoxic substances such as JP-4 jet fuel can have negative effects on the auditory system by the various means such as cochlear dysfunction. The purpose of this study was to investigate the combined effects of exposure to JP-4 jet fuel and noise on hearing loss in rats, to determine the possible interference effects of these two risk factors on rat auditory system. Methods...
this study examined hearing loss prevalence and hearing aid usage rates among korean elders by comparing the differences between those with and without hearing loss, and between those who used and did not use hearing aids.this study was based on data collected during the korean national health and nutrition examination survey v (2010-2012). the study sample consisted of 5,447 koreans aged ≥60 y...
original article extended exposure to noise can cause permanent hearing damage. this study aimed to determine the incidence time of hearing loss and its effective factors in workers exposed to noise. this retrospective cohort study, was conducted on a total of 273 workers in various sectors of kerman copper by-industries co. their hearing status and the incidence of hearing loss (hearing thre...
noise is one of the most common workplace hazardous agents that can cause permanent hearing damage. workers in many industries are usually exposed to noise levels with high risks of hearing loss. accordingly this research aims to study the noise exposure and haring status of registered locksmiths who are exposed to harmful effects caused by several factors, such as key making machines loud nois...
Abstract Background: Noise is a harmful environmental factor which may cause hearing loss, hypertension, and higher rates of occupational accidents and reduced production. Considering the various intensities and frequencies produced by industrial equipments, we assessed the effects of noise on hearing of tile industry workers. Methods: This cross-sectional study was done on 372 workers expose...
Introduction: Exposure to hazardous noise induces one of the forms of acquired and preventable hearing loss that is noise-induced hearing loss (NIHL). Considering oxidative stress as the main mechanism of NIHL, it is possible that myricetin can protect NIHL by its antioxidant effect. Therefore, the present study aimed to investigate the preventive effect of myricetin on NIHL. <br /...
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...
Background and aims Noise induced hearing loss is a permanent,usually, bilateral hearing impairment due to long term exposure to high levels of noise and exposure of workers to noise represents one of the most common occupational hazards. Although noise has also been suggested to increase the prevalence of hypertension, evidence for this association is not conclusive. This historical coh...
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