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Noise & Health

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https://www.readbyqxmd.com/read/28615546/assessment-of-spatial-and-physical-neighborhood-characteristics-that-influence-sound-quality-and-herewith-well-being-and-health
#1
Jeroen Devilee, Elise van Kempen, Wim Swart, Irene van Kamp, Caroline Ameling
Environmental noise and health studies seldom address the positive effect of environments with high acoustic quality. Sound quality, in turn, is influenced by a large number of factors, including the spatial-physical characteristics of a neighborhood. In general, these characteristics cannot be retrieved from existing databases. In this article, we describe the design of an audit instrument and demonstrate its value for gathering information about these characteristics of neighborhoods. The audit instrument used was derived from research in other fields than environmental health...
May 2017: Noise & Health
https://www.readbyqxmd.com/read/28615545/inhibitory-effects-of-low-decibel-infrasound-on-the-cardiac-fibroblasts-and-the-involved-mechanism
#2
Wei Jin, Qin-Qin Deng, Bao-Ying Chen, Zhen-Xing Lu, Qing Li, Hai-Kang Zhao, Pan Chang, Jun Yu, Zhao-Hui Pei
INTRODUCTION: Infrasound is a mechanical vibration wave with frequency between 0.0001 and 20 Hz. It has been established that infrasound of 120 dB or stronger is dangerous to humans. However, the biological effects of low decibel infrasound are largely unknown. The purpose of this study was to investigate the effects of low decibel infrasound on the cardiac fibroblasts. MATERIALS AND METHODS: The cardiac fibroblasts were isolated and cultured from Sprague-Dawley rats...
May 2017: Noise & Health
https://www.readbyqxmd.com/read/28615544/evidence-of-associations-between-brain-derived-neurotrophic-factor-bdnf-serum-levels-and-gene-polymorphisms-with-tinnitus
#3
Aysun Coskunoglu, Seda Orenay-Boyacioglu, Artuner Deveci, Mustafa Bayam, Ece Onur, Arzu Onan, Fethi S Cam
BACKGROUND: Brain-derived neurotrophic factor (BDNF) gene polymorphisms are associated with abnormalities in regulation of BDNF secretion. Studies also linked BDNF polymorphisms with changes in brainstem auditory-evoked response test results. Furthermore, BDNF levels are reduced in tinnitus, psychiatric disorders, depression, dysthymic disorder that may be associated with stress, conversion disorder, and suicide attempts due to crises of life. For this purpose, we investigated whether there is any role of BDNF changes in the pathophysiology of tinnitus...
May 2017: Noise & Health
https://www.readbyqxmd.com/read/28615543/time-course-of-cell-death-due-to-acoustic-overstimulation-in-the-mouse-medial-geniculate-body-and-primary-auditory-cortex
#4
Felix Frohlich, Dietmar Basta, Ira Strübing, Arne Ernst, Moritz Gröschel
It has previously been shown that acoustic overstimulation induces cell death and extensive cell loss in key structures of the central auditory pathway. A correlation between noise-induced apoptosis and cell loss was hypothesized for the cochlear nucleus and colliculus inferior. To determine the role of cell death in noise-induced cell loss in thalamic and cortical structures, the present mouse study (NMRI strain) describes the time course following noise exposure of cell death mechanisms for the ventral medial geniculate body (vMGB), medial MGB (mMGB), and dorsal MGB (dMGB) and the six histological layers of the primary auditory cortex (AI 1-6)...
May 2017: Noise & Health
https://www.readbyqxmd.com/read/28615542/headphone-listening-habits-and-hearing-thresholds-in-swedish-adolescents
#5
Stephen E Widen, Sara Båsjö, Claes Möller, Kim Kähäri
INTRODUCTION: The aim of this study was to investigate self-reported hearing and portable music listening habits, measured hearing function and music exposure levels in Swedish adolescents. The study was divided into two parts. MATERIALS AND METHODS: The first part included 280 adolescents, who were 17 years of age and focused on self-reported data on subjective hearing problems and listening habits regarding portable music players. From this group, 50 adolescents volunteered to participate in Part II of the study, which focused on audiological measurements and measured listening volume...
May 2017: Noise & Health
https://www.readbyqxmd.com/read/28615541/self-reported-occupational-noise-may-be-associated-with-prevalent-chronic-obstructive-pulmonary-disease-in-the-us-general-population
#6
Angel M Dzhambov, Donka D Dimitrova
INTRODUCTION: Occupational noise exposure and chronic obstructive pulmonary disease (COPD) are common in the United States, but so far their association has not been explored. Given the neuroimmunological effects of noise, such an association seems plausible. Thus, the present study aimed to explore the association of occupational noise exposure with prevalent COPD in the US general population. MATERIALS AND METHODS: We used data from the population-based National Health Interview Survey (NHIS) 2014...
May 2017: Noise & Health
https://www.readbyqxmd.com/read/28164937/classroom-listening-conditions-in-indian-primary-schools-a-survey-of-four-schools
#7
Gayathri Sundaravadhanan, Heramba G Selvarajan, Bradley McPherson
INTRODUCTION: Background noise affects the listening environment inside classrooms, especially for younger children. High background noise level adversely affects not only student speech perception but also teacher vocal hygiene. The current study aimed to give an overview of the classroom listening conditions in selected government primary schools in India. MATERIALS AND METHODS: Noise measurements were taken in 23 classrooms of four government primary schools in southern India, using a type 2 sound level meter...
January 2017: Noise & Health
https://www.readbyqxmd.com/read/28164936/the-effects-of-acoustic-white-noise-on-the-rat-central-auditory-system-during-the-fetal-and-critical-neonatal-periods-a-stereological-study
#8
Mohammad Saied Salehi, Mohammad Reza Namavar, Amin Tamadon, Raziyeh Bahmani, Mohammad Reza Jafarzadeh Shirazi, Homayoun Khazali, Leila Dargahi, Sareh Pandamooz, Farzad Mohammad-Rezazadeh, Fatemeh Sadat Rashidi
AIM: To evaluate the effects of long-term, moderate level noise exposure during crucial periods of rat infants on stereological parameters of medial geniculate body (MGB) and auditory cortex. MATERIALS AND METHODS: Twenty-four male offspring of 12 pregnant rats were divided into four groups: fetal-to-critical period group, which were exposed to noise from the last 10 days of fetal life till postnatal day (PND) 29; fetal period group that exposed to noise during the last 10 days of fetal life; critical period group, exposed to noise from PND 15 till PND 29, and control group...
January 2017: Noise & Health
https://www.readbyqxmd.com/read/28164935/effect-of-filters-on-the-noise-generated-by-continuous-positive-airway-pressure-delivered-via-a-helmet
#9
Ricardo Hernández-Molina, Francisco Fernández-Zacarías, Isabel Benavente-Fernández, Gema Jiménez-Gómez, Simón Lubián-López
INTRODUCTION: One of the problems that the delivery of continuous positive airway pressure (CPAP) via a helmet poses is the generation of noise. The objective of our study was to assess the effect that the use of filter has on sound pressure levels generated by the delivery of positive airway pressure at different gas flow rates. MATERIALS AND METHODS: Sound pressure levels generated by neonatal helmet CPAP delivery were measured at different gas flows (20, 30, and 40 l/min) with and without a breathing filter...
January 2017: Noise & Health
https://www.readbyqxmd.com/read/28164934/epidemiology-and-risk-factors-for-leisure-noise-induced-hearing-damage-in-flemish-young-adults
#10
Sofie Degeest, Els Clays, Paul Corthals, Hannah Keppler
CONTEXT: Young people regularly expose themselves to leisure noise and are at risk for acquiring hearing damage. AIMS: The objective of this study was to compare young adults' hearing status in relation to sociodemographic variables, leisure noise exposure and attitudes and beliefs towards noise. SETTINGS AND DESIGN: A self-administered questionnaire regarding hearing, the amount of leisure noise exposure and attitudes towards noise and hearing protection as well as an audiological test battery were completed...
January 2017: Noise & Health
https://www.readbyqxmd.com/read/28164933/using-auditory-steady-state-responses-for-measuring-hearing-protector-attenuation
#11
Olivier Valentin, Sasha M John, Frédéric Laville
INTRODUCTION: Present methods of measuring the attenuation of hearing protection devices (HPDs) have limitations. Objective measurements such as field microphone in real-ear do not assess bone-conducted sound. Psychophysical measurements such as real-ear attenuation at threshold (REAT) are biased due to the low frequency masking effects from test subjects' physiological noise and the variability of measurements based on subjective responses. An auditory steady-state responses (ASSRs) procedure is explored as a technique which might overcome these limitations...
January 2017: Noise & Health
https://www.readbyqxmd.com/read/27991473/response-to-mccunney-et-al-wind-turbines-and-health-an-examination-of-a-proposed-case-definition
#12
LETTER
Robert Y McMurtry, Carmen M E Krogh
No abstract text is available yet for this article.
November 2016: Noise & Health
https://www.readbyqxmd.com/read/27991472/modeling-signal-to-noise-ratio-of-otoacoustic-emissions-in-workers-exposed-to-different-industrial-noise-levels
#13
Parvin Nassiri, Sajad Zare, Mohammad R Monazzam, Akram Pourbakht, Kamal Azam, Taghi Golmohammadi
INTRODUCTION: Noise is considered as the most common cause of harmful physical effects in the workplace. A sound that is generated from within the inner ear is known as an otoacoustic emission (OAE). Distortion-product otoacoustic emissions (DPOAEs) assess evoked emission and hearing capacity. The aim of this study was to assess the signal-to-noise ratio in different frequencies and at different times of the shift work in workers exposed to various levels of noise. It was also aimed to provide a statistical model for signal-to-noise ratio (SNR) of OAEs in different frequencies based on the two variables of sound pressure level (SPL) and exposure time...
November 2016: Noise & Health
https://www.readbyqxmd.com/read/27991471/cigarette-and-snus-modified-association-between-unprotected-exposure-to-noise-from-hunting-rifle-caliber-weapons-and-high-frequency-hearing-loss-a-cross-sectional-study-among-swedish-hunters
#14
Louise Honeth, Peter Ström, Alexander Ploner, Dan Bagger-Sjöbäck, Ulf Rosenhall, Olof Nyrén
AIM: To investigate in this cross-sectional study among Swedish hunters if tobacco use modifies the previously observed association, expressed as prevalence ratio (PR), between unprotected exposure to impulse noise from hunting rifle caliber (HRC) weapons and high-frequency hearing impairment (HFHI). SETTINGS AND DESIGN: A nationwide cross-sectional epidemiologic study was conducted among Swedish sport hunters in 2012. MATERIALS AND METHODS: The study was Internet-based and consisted of a questionnaire and an Internet-based audiometry test...
November 2016: Noise & Health
https://www.readbyqxmd.com/read/27991470/air-traffic-controllers-long-term-speech-in-noise-training-effects-a-control-group-study
#15
Maria T P Zaballos, Daniel P Plasencia, María L Z González, Angel R de Miguel, Ángel R Macías
INTRODUCTION: Speech perception in noise relies on the capacity of the auditory system to process complex sounds using sensory and cognitive skills. The possibility that these can be trained during adulthood is of special interest in auditory disorders, where speech in noise perception becomes compromised. Air traffic controllers (ATC) are constantly exposed to radio communication, a situation that seems to produce auditory learning. The objective of this study has been to quantify this effect...
November 2016: Noise & Health
https://www.readbyqxmd.com/read/27991469/gender-differences-in-use-of-hearing-protection-devices-among-farm-operators
#16
Marjorie C McCullagh, Tanima Banerjee, James J Yang, Janice Bernick, Sonia Duffy, Richard Redman
PURPOSE: Although farm operators have frequent exposure to hazardous noise and high rates of noise-induced hearing loss, they have low use of hearing protection devices (HPDs). Women represent about one-third of farm operators, and their numbers are climbing. However, among published studies examining use of HPDs in this worker group, none have examined gender-related differences. The purpose of this study was to examine gender-related differences in use of hearing protection and related predictors among farm operators...
November 2016: Noise & Health
https://www.readbyqxmd.com/read/27991468/arterial-indices-and-serum-cystatin-c-level-in-individuals-with-occupational-wide-band-noise-exposure
#17
Ali R Khoshdel, Benyamin Mousavi-Asl, Babak Shekarchi, Kazem Amini, Iraj Mirzaii-Dizgah
BACKGROUND: Chronic exposure to noise is known to cause a wide range of health problems including extracellular matrix (ECM) proliferation and involvement of cardiovascular system. There are a few studies to investigate noise-induced vascular changes using noninvasive methods. In this study we used carotid artery intima-media thickness (CIMT) and aortic augmentation as indices of arterial properties and cystatin C as a serum biomarker relating to ECM metabolism. MATERIALS AND METHODS: Ninety-three male participants were included in this study from aeronautic technicians: 39 with and 54 without a history of wide band noise (WBN) exposure...
November 2016: Noise & Health
https://www.readbyqxmd.com/read/27991467/the-risk-of-occupational-injury-increased-according-to-severity-of-noise-exposure-after-controlling-for-occupational-environment-status-in-korea
#18
Jin-Ha Yoon, Jaehoon Roh, Chi-Nyon Kim, Jong-Uk Won
OBJECTIVES: The aim of this study was to examine the relationship between noise exposure and risk of occupational injury. MATERIALS AND METHODS: Korean National Health and Nutrition Examination Survey was used for the current study. Self-report questionnaires were used to investigate occupational injury and exposure to noise, chemicals, and machines and equipments. RESULTS: In separate analyses for occupation and occupational hazard, the proportion of occupational injuries increased according to severity of noise exposure (all P < 0...
November 2016: Noise & Health
https://www.readbyqxmd.com/read/27991466/prevalence-of-tinnitus-and-noise-induced-hearing-loss-in-dentists
#19
Jamie Myers, Andrew B John, Suzanne Kimball, Terry Fruits
INTRODUCTION: The purpose of this study was to evaluate noise levels in dental offices and to estimate the risk and prevalence of tinnitus and noise-induced hearing loss (NIHL) in practicing dentists. MATERIALS AND METHODS: First, measures were collected of sound pressure levels produced by dental handpieces and dental suction in the University of Oklahoma Health Sciences Center (OUHSC) College of Dentistry. Second, a survey was distributed to members of the Oklahoma Dental Association (ODA)...
November 2016: Noise & Health
https://www.readbyqxmd.com/read/27991465/specific-and-combined-subjective-responses-to-noise-and-their-association-with-cardiovascular-diseases
#20
Zdenka Vandasova, Ondřej Vencálek, Vladimíra Puklová
INTRODUCTION: Noise is one of the most extensive environmental factors affecting the general population. The present study is focused on the association between discomfort caused by noise and the incidence of certain diseases (ischaemic heart disease, stroke and hypertension). MATERIALS AND METHODS: This cross-sectional questionnaire study, conducted in 10 cities in the Czech Republic, comprises two stages with 3592 obtained questionnaires in the first phase and 762 in the second phase...
November 2016: Noise & Health
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