نتایج جستجو برای: ear protective devices

تعداد نتایج: 350712  

2009
John J. Rosowski

Studies of signal transmission in the auditory system continue in cooperation with the Eaton-Peabody Laboratory for Auditory Physiology at the Massachusetts Eye and Ear Infirmary. The goals of this program are to determine the anatomical structures and physiological mechanisms that underlie vertebrate hearing and to apply that knowledge where possible to clinical problems. Studies of cochlear i...

Journal: :Bulletin of the NYU hospital for joint diseases 2008
Kenneth J Koval Michael Cooley Robert V Cantu Kevin F Spratt

BACKGROUND The effects of alcohol on morbidity and mortality following motor vehicle accidents (MVAs) are controversial. This study was performed to address the effect of alcohol on in-hospital mortality for drivers in MVAs admitted to a trauma center before and after controlling for injury severity, safety device use, and patient demographics. METHODS A retrospective study was performed usin...

Journal: :International journal of occupational safety and ergonomics : JOSE 2009
Pedro M Arezes Joel Geraldes

The aim of the present study was to analyse the adequacy of hearing protection devices (HPDs) by applying and comparing different methods for the estimation of effective exposure levels. This comparison involved the attenuation data of 50 HPDs (ear muffs and ear plugs), as well as 11 types of noise spectra and 4 methods. The application of the several methods considered and the comparison of th...

Journal: :journal of operation and automation in power engineering 2015
hossein shayeghi masoud alilou

in this paper, simultaneous placement of distributed generation, capacitor bank and protective devices are utilized to improve the efficiency of the distribution network. the objectives of the problem are reduction of active and reactive power losses, improvement of voltage profile and reliability indices and increasing distribution companies’ profit. the combination of firefly algorithm, parti...

Journal: :iranian journal of otorhinolaryngology 0
nikzad shahidi department of otorhinolaryngology head and neck surgery, imam reza hospital, tabriz, iran. masoud naderpoor department of otorhinolaryngology head and neck surgery, imam reza hospital, tabriz, iran. taghi hemmatjoo department of otorhinolaryngology head and neck surgery, imam reza hospital, tabriz, iran.

introduction: tympanoplasty is the standard and well established procedure for closure of tympanic membrane perforations .this paper compares the results of tympanoplasty in terms of hearing improvement and graft incorporation in patients with chronic perforation of the tympanic membrane between two groups with and without active drainage at the time of surgery.  materials and methods: sixty re...

Journal: :iranian journal of otorhinolaryngology 0
mohammad reza majidi sinus and surgical endoscopic research center, mashhad university of medical sciences, mashhad, iran. amir hossein jafarian department of pathology, quaem hospital, mashhad university of medical science, mashhad, iran. shirin irani departments of otorhinolaryngolog, quaem educational hospital, mashhad university of medical sciences, mashhad, iran.

introduction: nodular fasciitis is described as a benign reactive proliferation of myofibroblasts. due to its rapid-growing nature, a precise clinical diagnosis is difficult and the condition is frequently misdiagnosed as malignant lesions.   case report: in this study, we present the case of a young woman with an auricular nodular fasciitis as an example of one of the rarest sites of this tumo...

Journal: :iranian journal of otorhinolaryngology 0
kianoosh nahid department of otorhinolaryngology, malaysia university of medical sciences, kuala lumpur, malaysia prepageran narayanan 2department of otorhinolaryngology, malaysia university of medical sciences, kuala lumpur, malaysia mohammad amin jalaluddin department of otorhinolaryngology, malaysia university of medical sciences, kuala lumpur, malaysia

ear candling is an alternative medicine practice alleged to enhance general health by putting an end of a hollow candle in the ear canal and lighting up the other end of it. it also is advertised for cerumen and debris (bacteria and fungi) removal. ear candling is claimed to create negative pressure for drawing cerumen from the ear and to benefit the ears in many ways. it is however not free of...

Journal: :Int. J. Hum.-Comput. Stud. 2017
Nem Khan Dim Xiangshi Ren

Many studies have demonstrated the benefits of wearable vibration devices for walking navigation (Tsukada and Yasumura, 2004). Despite the potential benefits, suitable body parts for wearable vibration devices have not been defined or evaluated until now. We conducted three experiments to identify suitable body parts in terms of perceivability, wearability and user body location preferences for...

Journal: :Proceedings of the ACM on interactive, mobile, wearable and ubiquitous technologies 2022

Earables have emerged as a unique platform for ubiquitous computing by augmenting ear-worn devices with state-of-the-art sensing. This new has spurred wealth of research exploring what can be detected on wearable, small form factor. As sensing platform, the ears are less susceptible to motion artifacts and located in close proximity number important anatomical structures including brain, blood ...

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  • " +i+ "
  • "; pgn_html+=pgn_li; } document.getElementById("pgn-ul").innerHTML=pgn_html var pgn_links = document.querySelectorAll('.mypgn'); pgn_links.forEach(function(pgn_link) { pgn_link.addEventListener('click', paginate) }) } function post_and_fetch(data,url) { showLoading() xhr = new XMLHttpRequest(); xhr.open('POST', url, true); xhr.setRequestHeader('Content-Type', 'application/json; charset=UTF-8'); xhr.onreadystatechange = function() { if (xhr.readyState === 4 && xhr.status === 200) { var resp = xhr.responseText; resp_json=JSON.parse(resp) resp_place = document.getElementById("search_result_div") resp_place.innerHTML = resp_json['results'] search_meta = resp_json['meta'] update_search_meta(search_meta) update_pagination() hideLoading() } }; xhr.send(JSON.stringify(data)); } function unfilter() { url=/search_year_filter/ var term=document.getElementById("search_meta_data").dataset.term var data={ "year":"unfilter", "term":term, "pgn":1 } filtered_res=post_and_fetch(data,url) } function deactivate_all_bars(){ var yrchart = document.querySelectorAll('.ct-bar'); yrchart.forEach(function(bar) { bar.dataset.active = false bar.style = "stroke:#71a3c5;" }) } year_chart.on("created", function() { var yrchart = document.querySelectorAll('.ct-bar'); yrchart.forEach(function(check) { check.addEventListener('click', checkIndex); }) }); function checkIndex(event) { var yrchart = document.querySelectorAll('.ct-bar'); var year_bar = event.target if (year_bar.dataset.active == "true") { unfilter_res = unfilter() year_bar.dataset.active = false year_bar.style = "stroke:#1d2b3699;" } else { deactivate_all_bars() year_bar.dataset.active = true year_bar.style = "stroke:#e56f6f;" filter_year = chart_data['labels'][Array.from(yrchart).indexOf(year_bar)] url=/search_year_filter/ var term=document.getElementById("search_meta_data").dataset.term var data={ "year":filter_year, "term":term, "pgn":1 } filtered_res=post_and_fetch(data,url) } } function showLoading() { document.getElementById("loading").style.display = "block"; setTimeout(hideLoading, 10000); // 10 seconds } function hideLoading() { document.getElementById("loading").style.display = "none"; } -->