نتایج جستجو برای: ear protective device

تعداد نتایج: 823933  

Journal: :Ear, nose, & throat journal 2006
Robert Thayer Sataloff

Candidates with the following medical conditions shall not be certified as meeting the medical requirements of this standard: (1) Chronic vertigo or impaired balance as demonstrated by the inability to tandem gait walk. (2) On audiometric testing, average hearing loss in the unaided better ear greater than 40 decibels (dB) at 500 Hz, 1000 Hz, and 2000 Hz when the audiometric device is calibrate...

Journal: :Applied sciences 2023

A new bending fracture principle is proposed for ear picking by simulating the process of manually breaking off corn cobs. Based on this, a test device was designed to obtain relationship between ear-picking rate and rotational speed snapping rollers, as well feeding speed. mechanical conducted at two different harvesting stages. This proved that tensile force used in considerably greater than ...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 1999
N Yoshida A Kristiansen M C Liberman

The inner ear can be permanently damaged by overexposure to high-level noise; however, damage can be decreased by previous exposure to moderate level, nontraumatic noise (). The mechanism of this "protective" effect is unclear, but a role for heat shock proteins has been suggested. The aim of the present study was to directly test protective effects of heat stress in the ear. For physiological ...

Journal: :IEEE Access 2021

This paper presents a disturbance observer-based nonsingular terminal sliding mode control design for myringotomy surgical device. The methodology is established to semi-automated hand-held ear device the treatment of otitis media with effusion. Otitis effusion collection bacterial fluid in middle space which can potentially lead hearing loss and chronic infections. A finite-time surface propos...

Journal: :Chest 1999
D Giannini E Bacci F L Dente A Di Franco B Vagaggini R Testi P Paggiaro

STUDY OBJECTIVE One week of regular treatment with salmeterol can induce tolerance to the protective effect of a beta2-agonist on early airway response to allergen (EAR). The objective was to assess whether inhaled corticosteroids revert tolerance to salmeterol. STUDY DESIGN The study had a randomized, double-blind, placebo-controlled design. PATIENTS AND METHODS Twelve subjects with mild a...

Journal: :The Laryngoscope 2012
Fred Y Lin Richard K Gurgel Gerald R Popelka Robson Capasso

OBJECTIVES/HYPOTHESIS While continuous positive airway pressure (CPAP) is commonly used for obstructive sleep apnea treatment, its effect on middle ear pressure is unknown. The purpose of this study was to measure the effect of CPAP on middle ear pressure and describe the correlation between CPAP levels and middle ear pressures. STUDY DESIGN Retrospective review of normal tympanometry values ...

Journal: :IEEE Access 2023

In this study, we propose an end-to-end emotion recognition system using ear-electroencephalogram (EEG)-based on-chip device that is enabled the machine-learning model. The has integrated gathers EEG signals from electrodes positioned behind ear; it more practical than conventional scalp-EEG method. relative power spectral density (PSD), which feature used in derived fast Fourier transform over...

2015
Masahiro Takahashi Yasuhiro Arai Naoko Sakuma Daisuke Sano Goshi Nishimura Takahide Taguchi Nobuhiko Oridate Satoshi Iwasaki Shin-Ichi Usami

It is known that cochlear implantation for deaf patients with eosinophilic otitis media (EOM) is safe and can provide good speech perception. However, the best timing of implant surgery in patients with EOM is not yet known. The aim of this case report is to suggest the appropriate timing of the surgery in EOM patients with deaf. Cochlear implantation was indicated in two patients with EOM. One...

2014
Carolina Louise Cardoso Ângelo José Gonçalves Bós Andréa Krüger Gonçalves Maira Rozenfeld Olchik Leticia Sousa Flores Bruna Macagnin Seimetz Magda Aline Bauer Patricia Pérez Coradini Adriane Ribeiro Teixeira

Introduction Hearing screening allows the identification of individuals with hearing loss. Aim To determine the sensitivity and specificity of a portable hearing screening device in middle-aged and older adults using the manufacturer scoring and a scoring system proposed by the researchers. Methods In this transversal study, participants underwent anamnesis, otoscopy, and hearing screening usin...

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