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Noise & Health

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https://www.readbyqxmd.com/read/27762258/supporting-the-global-initiative-of-preventing-childhood-hearing-loss-act-now-here-s-how
#1
Saurabh RamBihariLal Shrivastava, Prateek Saurabh Shrivastava, Jegadeesh Ramasamy
No abstract text is available yet for this article.
September 2016: Noise & Health
https://www.readbyqxmd.com/read/27762257/soft-tissue-conduction-as-a-possible-contributor-to-the-limited-attenuation-provided-by-hearing-protection-devices
#2
Shai Chordekar, Cahtia Adelman, Haim Sohmer, Liat Kishon-Rabin
CONTEXT: Damage to the auditory system by loud sounds can be avoided by hearing protection devices (HPDs) such as earmuffs, earplugs, or both for maximum attenuation. However, the attenuation can be limited by air conduction (AC) leakage around the earplugs and earmuffs by the occlusion effect (OE) and by skull vibrations initiating bone conduction (BC). AIMS: To assess maximum attenuation by HPDs and possible flanking pathways to the inner ear. SUBJECTS AND METHODS: AC attenuation and resulting thresholds were assessed using the real ear attenuation at threshold (REAT) procedure on 15 normal-hearing participants in four free-field conditions: (a) unprotected ears, (b) ears covered with earmuffs, (c) ears blocked with deeply inserted customized earplugs, and (d) ears blocked with both earplugs and earmuffs...
September 2016: Noise & Health
https://www.readbyqxmd.com/read/27762256/occupational-noise-exposure-on-a-royal-navy-warship-during-weapon-fire
#3
Gurmail Singh Paddan
INTRODUCTION: Measurements were made of the sound pressure levels on a military ship HMS Grimsby during firing of a Heavy Machine Gun (HMG) mounted on the starboard bridge wing. The measurement positions comprised three locations on the ship's bridge (the wheelhouse) and one location on the starboard bridge wing. Equipment and Procedure: The three locations on the bridge were the starboard door, centre and port door. A total of 255 burst firings were measured during the survey comprising 850 rounds with each burst encompassing from 1 to 10 rounds...
September 2016: Noise & Health
https://www.readbyqxmd.com/read/27762255/auditory-brainstem-responses-for-click-and-ce-chirp-stimuli-in-individuals-with-and-without-occupational-noise-exposure
#4
Zeena Venkatacheluvaiah Pushpalatha, Sreeraj Konadath
INTRODUCTION: Encoding of CE-chirp and click stimuli in auditory system was studied using auditory brainstem responses (ABRs) among individuals with and without noise exposure. MATERIALS AND METHODS: The study consisted of two groups. Group 1 (experimental group) consisted of 20 (40 ears) individuals exposed to occupational noise with hearing thresholds within 25 dB HL. They were further divided into three subgroups based on duration of noise exposure (0-5 years of exposure-T1, 5-10 years of exposure-T2, and >10 years of exposure-T3)...
September 2016: Noise & Health
https://www.readbyqxmd.com/read/27762254/determination-of-the-level-of-noise-in-nurseries-and-pre-schools-and-the-teachers-level-of-annoyance
#5
Ozan Gokdogan, Cagil Gokdogan
OBJECTIVE: The aim of this article is to determine the level of noise in nurseries and pre-schools and also to compare measured levels with standard levels and evaluate the teachers' level of annoyance. MATERIALS AND METHODS: The level of noise was measured in three different schools. A total of 162 students, whose ages were between 3 and 6 years, and 12 teachers were included the study. Every age groups' level of noise was measured during sleeping, gaming, and eating activity...
September 2016: Noise & Health
https://www.readbyqxmd.com/read/27762253/the-protective-effect-of-the-endoplasmic-reticulum-stress-related-factors-bip-grp78-and-chop-gadd153-on-noise-induced-hearing-loss-in-guinea-pigs
#6
Qiuhong Xue, Caihong Li, Jia Chen, Hongmei Guo, Dongqing Li, Xianglei Wu
CONTEXT: The audiological features and cochlear morphology of individuals with noise-induced hearing loss (NIHL) are well characterized. However, the molecular processes in the cochlea are not well understood. AIMS: To explore the role of the endoplasmic reticulum stress (ERS) response in the guinea pig model of cochlear damage induced by exposure to intense noise. SETTINGS AND DESIGN: A pilot case-control study. SUBJECTS AND METHODS: Forty-eight guinea pigs were divided into four equal groups...
September 2016: Noise & Health
https://www.readbyqxmd.com/read/27762252/the-effect-of-room-acoustics-on-the-sleep-quality-of-healthy-sleepers
#7
Ingo Fietze, Charlotte Barthe, Matthias Hölzl, Martin Glos, Sandra Zimmermann, Ralf Bauer-Diefenbach, Thomas Penzel
INTRODUCTION: Noise is one of the factors that can seriously disturb sleep, and sound volume is an important factor in this context. One strategy involves avoiding exposure to sounds in the night, while entail the minimization of background noise in a bedroom. The goal of this study was to investigate the effect of systematic sound attenuation on nocturnal sleep by influencing sound volume and reverberation within the context of room acoustics. MATERIALS AND METHODS: On this basis, we designed a randomized, controlled crossover trial investigating 24 healthy sleepers (15 men and 9 women, aged 24...
September 2016: Noise & Health
https://www.readbyqxmd.com/read/27762251/disorders-induced-by-direct-occupational-exposure-to-noise-systematic-review
#8
Andrea Domingo-Pueyo, Javier Sanz-Valero, Carmina Wanden-Berghe
BACKGROUND: To review the available scientific literature about the effects on health by occupational exposure to noise. MATERIALS AND METHODS: A systematic review of the retrieved scientific literature from the databases MEDLINE (via PubMed), ISI-Web of Knowledge (Institute for Scientific Information), Cochrane Library Plus, SCOPUS, and SciELO (collection of scientific journals) was conducted. The following terms were used as descriptors and were searched in free text: "Noise, Occupational," "Occupational Exposure," and "Occupational Disease...
September 2016: Noise & Health
https://www.readbyqxmd.com/read/27569410/sound-exposure-during-outdoor-music-festivals
#9
Tron V Tronstad, Femke B Gelderblom
Most countries have guidelines to regulate sound exposure at concerts and music festivals. These guidelines limit the allowed sound pressure levels and the concert/festival's duration. In Norway, where there is such a guideline, it is up to the local authorities to impose the regulations. The need to prevent hearing-loss among festival participants is self-explanatory, but knowledge of the actual dose received by visitors is extremely scarce. This study looks at two Norwegian music festivals where only one was regulated by the Norwegian guideline for concert and music festivals...
July 2016: Noise & Health
https://www.readbyqxmd.com/read/27569409/characterization-of-tinnitus-in-different-age-groups-a-retrospective-review
#10
Jamil Al-Swiahb, Shi Nae Park
OBJECTIVES: The aim of this study was to characterize tinnitus in affected patients. METHODS: A retrospective review of medical records from 470 consecutive patients who visited a tertiary care hospital for evaluation of chronic subjective tinnitus between January 2009 and June 2010 was performed. Patients were divided into three subgroups based on age. Clinical, audiological, and psychological characteristics of each subgroup were analyzed. RESULTS: Of the 470 patients evaluated, 85 were less than 40, 217 between 40 and 60, and 168 above 60 years of age...
July 2016: Noise & Health
https://www.readbyqxmd.com/read/27569408/road-and-rail-traffic-noise-induce-comparable-extra-aural-effects-as-revealed-during-a-short-term-memory-test
#11
Eugen Gallasch, Reinhard B Raggam, Michael Cik, Jasmin Rabensteiner, Andreas Lackner, Barbara Piber, Egon Marth
To examine extraaural effects as induced by 20 min of road (ROAD) and 20 min of rail (RAIL) traffic noise with same loudness (75 dBA), a laboratory study was carried out. The study (N = 54) consisted of 28 high and 26 low-annoyed healthy individuals as determined by a traffic annoyance test. To control attention, all individuals performed a nonauditory short-term memory test during the noise exposures. A within-subject design, with phases of ROAD, RAIL, and CALM (memory test only), alternated by phases of rest, was defined...
July 2016: Noise & Health
https://www.readbyqxmd.com/read/27569407/before-after-field-study-of-effects-of-wind-turbine-noise-on-polysomnographic-sleep-parameters
#12
Leila Jalali, Philip Bigelow, Mohammad-Reza Nezhad-Ahmadi, Mahmood Gohari, Diane Williams, Steve McColl
Wind is considered one of the most advantageous alternatives to fossil energy because of its low operating cost and extensive availability. However, alleged health-related effects of exposure to wind turbine (WT) noise have attracted much public attention and various symptoms, such as sleep disturbance, have been reported by residents living close to wind developments. Prospective cohort study with synchronous measurement of noise and sleep physiologic signals was conducted to explore the possibility of sleep disturbance in people hosting new industrial WTs in Ontario, Canada, using a pre and post-exposure design...
July 2016: Noise & Health
https://www.readbyqxmd.com/read/27569406/environmental-propagation-of-noise-in-mines-and-nearby-villages-a-study-through-noise-mapping
#13
Veena D Manwar, Bibhuti B Mandal, Asim K Pal
BACKGROUND: Noise mapping being an established practice in Europe is hardly practiced for noise management in India although it is mandatory in Indian mines as per guidelines of the Directorate General of Mines Safety (DGMS). As a pilot study, noise mapping was conducted in an opencast mine with three different models; one based on the baseline operating conditions in two shifts (Situation A), and two other virtual situations where either production targets were enhanced by extending working hours to three shifts (Situation B) or only by increased mechanization and not changing the duration of work (Situation C)...
July 2016: Noise & Health
https://www.readbyqxmd.com/read/27569405/characteristics-of-hyperacusis-in-the-general-population
#14
Johan Paulin, Linus Andersson, Steven Nordin
There is a need for better understanding of various characteristics in hyperacusis in the general population. The objectives of the present study were to investigate individuals in the general population with hyperacusis regarding demographics, lifestyle, perceived general health and hearing ability, hyperacusis-specific characteristics and behavior, and comorbidity. Using data from a large-scale population-based questionnaire study, we investigated individuals with physician-diagnosed (n = 66) and self-reported (n = 313) hyperacusis in comparison to individuals without hyperacusis (n = 2995)...
July 2016: Noise & Health
https://www.readbyqxmd.com/read/27569404/occupational-noise-and-ischemic-heart-disease-a-systematic-review
#15
Angel M Dzhambov, Donka D Dimitrova
Noise exposure might be a risk factor for ischemic heart disease (IHD). Unlike residential exposure, however, evidence for occupational noise is limited. Given that high-quality quantitative synthesis of existing data is highly warranted for occupational safety and policy, we aimed at conducting a systematic review and meta-analysis of the risks of IHD morbidity and mortality because of occupational noise exposure. We carried out a systematic search in MEDLINE, EMBASE, and on the Internet since April 2, 2015, in English, Spanish, Russian, and Bulgarian...
July 2016: Noise & Health
https://www.readbyqxmd.com/read/27157689/hearing-loss-in-the-royal-norwegian-navy-a-longitudinal-study
#16
Kaja Irgens-Hansen, Valborg Baste, Magne Bråtveit, Ola Lind, Vilhelm F Koefoed, Bente E Moen
The aims of this longitudinal study were to investigate a significant threshold shift (STS) among personnel working on board the Royal Norwegian Navy's (RNoN) vessels between 2012 and 2014 and to identify possible determinants of STS. Hearing thresholds were measured by pure tone audiometry in two consecutive examinations (n = 226). STS was defined as an average change in hearing thresholds ≥ + 10 dB at 2,000 Hz, 3,000 Hz, and 4,000 Hz in either ear. Determinants of STS were assessed through a questionnaire...
May 2016: Noise & Health
https://www.readbyqxmd.com/read/27157688/the-acute-physiological-stress-response-to-an-emergency-alarm-and-mobilization-during-the-day-and-at-night
#17
Sarah J Hall, Brad Aisbett, Jamie L Tait, Anne I Turner, Sally A Ferguson, Luana C Main
The purpose of this study was to investigate the acute physiological stress response to an emergency alarm and mobilization during the day and at night. Sixteen healthy males aged 25 ± 4 years (mean ± SD) spent four consecutive days and nights in a sleep laboratory. This research used a within-participants design with repeated measures for time, alarm condition (alarm or control), and trial (day or night). When an alarm sounded, participants were required to mobilize immediately. Saliva samples for cortisol analysis were collected 0 min, 15 min, 30 min, 45 min, 60 min, 90 min, and 120 min after mobilization, and at corresponding times in control conditions...
May 2016: Noise & Health
https://www.readbyqxmd.com/read/27157687/lack-of-contralateral-suppression-in-transient-evoked-otoacoustic-emissions-in-multiple-chemical-sensitivity-a-clinical-correlation-study
#18
Alessandro Micarelli, Andrea Viziano, Giuseppe Genovesi, Ernesto Bruno, Fabrizio Ottaviani, Marco Alessandrini
Multiple chemical sensitivity (MCS) is a chronic disorder characterized by a variety of symptoms associated with the exposure to chemicals at a concentration below the toxic level. Previous studies have demonstrated peculiar responses in brain activity in these patients with respect to sensory stimuli while the association between chemical sensitivity and other environmental intolerances such as noise sensitivity has been questioned by researchers. In this study, a cohort of 18 MCS patients underwent transient-evoked otoacoustic emission (TEOAE) testing with and without contralateral suppression to evaluate the functionality of the medial olivocochlear (MOC) reflex involved in speech-in-noise sensitivity...
May 2016: Noise & Health
https://www.readbyqxmd.com/read/27157686/exposures-to-road-traffic-noise-and-air-pollution-as-risk-factors-for-type-2-diabetes-a-feasibility-study-in-bulgaria
#19
Angel M Dzhambov, Donka D Dimitrova
Type 2 diabetes mellitus (T2DM) is a growing public health problem in Bulgaria. While individual and lifestyle determinants have been researched; till date there has been no study on environmental risks such as road traffic, noise, and air pollution. As a first step toward designing a large-scale population-based survey, we aimed at exploring the overall associations of prevalent T2DM with exposures to road traffic, noise, and air pollution. A total of 513 residents of Plovdiv city, Bulgaria were recruited...
May 2016: Noise & Health
https://www.readbyqxmd.com/read/27157685/moderators-of-noise-induced-cognitive-change-in-healthy-adults
#20
Bernice Al Wright, Emmanuelle R Peters, Ulrich Ettinger, Elizabeth Kuipers, Veena Kumari
Environmental noise causes cognitive impairment, particularly in executive function and episodic memory domains, in healthy populations. However, the possible moderating influences on this relationship are less clear. This study assessed 54 healthy participants (24 men) on a cognitive battery (measuring psychomotor speed, attention, executive function, working memory, and verbal learning and memory) under three (quiet, urban, and social) noise conditions. IQ, subjective noise sensitivity, sleep, personality, paranoia, depression, anxiety, stress, and schizotypy were assessed on a single occasion...
May 2016: Noise & Health
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