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A Study Of The Efffectiveness Of A Method Of Hearing Screening Using The Single Frequency Of 4000 Cycles Per Second And Of Methods Using A Combination Of 4000 Cycles Per Second And Other Frequencies
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Book Synopsis A Study of the Efffectiveness of a Method of Hearing Screening Using the Single Frequency of 4000 Cycles Per Second and of Methods Using a Combination of 4000 Cycles Per Second and Other Frequencies by : Douglas Ann Stevens
Download or read book A Study of the Efffectiveness of a Method of Hearing Screening Using the Single Frequency of 4000 Cycles Per Second and of Methods Using a Combination of 4000 Cycles Per Second and Other Frequencies written by Douglas Ann Stevens and published by . This book was released on 1958 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :United States. Congress. Senate. Special Committee on Aging. Subcommittee on Consumer Interests of the Elderly Publisher : ISBN 13 : Total Pages :392 pages Book Rating :4.:/5 (327 download)
Book Synopsis Hearing Loss, Hearing Aids, and the Elderly by : United States. Congress. Senate. Special Committee on Aging. Subcommittee on Consumer Interests of the Elderly
Download or read book Hearing Loss, Hearing Aids, and the Elderly written by United States. Congress. Senate. Special Committee on Aging. Subcommittee on Consumer Interests of the Elderly and published by . This book was released on 1968 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hearing Loss by : National Research Council
Download or read book Hearing Loss written by National Research Council and published by National Academies Press. This book was released on 2004-12-17 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: Millions of Americans experience some degree of hearing loss. The Social Security Administration (SSA) operates programs that provide cash disability benefits to people with permanent impairments like hearing loss, if they can show that their impairments meet stringent SSA criteria and their earnings are below an SSA threshold. The National Research Council convened an expert committee at the request of the SSA to study the issues related to disability determination for people with hearing loss. This volume is the product of that study. Hearing Loss: Determining Eligibility for Social Security Benefits reviews current knowledge about hearing loss and its measurement and treatment, and provides an evaluation of the strengths and weaknesses of the current processes and criteria. It recommends changes to strengthen the disability determination process and ensure its reliability and fairness. The book addresses criteria for selection of pure tone and speech tests, guidelines for test administration, testing of hearing in noise, special issues related to testing children, and the difficulty of predicting work capacity from clinical hearing test results. It should be useful to audiologists, otolaryngologists, disability advocates, and others who are concerned with people who have hearing loss.
Book Synopsis An Investigation to Determine the Validity of the 4000 Cycle Per Second Pure Tone Frequency as an Audiometric Screening Device for School Children by : Barbara Gayle Gaddie
Download or read book An Investigation to Determine the Validity of the 4000 Cycle Per Second Pure Tone Frequency as an Audiometric Screening Device for School Children written by Barbara Gayle Gaddie and published by . This book was released on 1960 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Medical Journal of Australia by :
Download or read book The Medical Journal of Australia written by and published by . This book was released on 1958 with total page 1864 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Engineering written by and published by . This book was released on 1932 with total page 974 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Evaluation of Limited-frequency Screening in Public School Audiometry by : Nancy Faye Toler
Download or read book An Evaluation of Limited-frequency Screening in Public School Audiometry written by Nancy Faye Toler and published by . This book was released on 1962 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Radio written by and published by . This book was released on 1946 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pacific Radio News written by and published by . This book was released on 1947 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Safety News written by and published by . This book was released on 1968 with total page 1010 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Noise and Military Service by : Institute of Medicine
Download or read book Noise and Military Service written by Institute of Medicine and published by National Academies Press. This book was released on 2006-01-20 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Institute of Medicine carried out a study mandated by Congress and sponsored by the Department of Veterans Affairs to provide an assessment of several issues related to noise-induced hearing loss and tinnitus associated with service in the Armed Forces since World War II. The resulting book, Noise and Military Service: Implications for Hearing Loss and Tinnitus, presents findings on the presence of hazardous noise in military settings, levels of noise exposure necessary to cause hearing loss or tinnitus, risk factors for noise-induced hearing loss and tinnitus, the timing of the effects of noise exposure on hearing, and the adequacy of military hearing conservation programs and audiometric testing. The book stresses the importance of conducting hearing tests (audiograms) at the beginning and end of military service for all military personnel and recommends several steps aimed at improving the military services' prevention of and surveillance for hearing loss and tinnitus. The book also identifies research needs, emphasizing topics specifically related to military service.
Book Synopsis Pilot Study Validation of Hear Mobile Hearing Screening Application in the General Population by : Lakshmi Vaishnavi Dakuri
Download or read book Pilot Study Validation of Hear Mobile Hearing Screening Application in the General Population written by Lakshmi Vaishnavi Dakuri and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this pilot study was to test the quality of data collected by a mobile hearing screening application (hEAR) against the gold standard of pure tone audiometry administered by a certified audiologist. hEAR used 7 pre-set frequencies (125 Hz, 250 Hz, 500 Hz, 1000 Hz, 2000 Hz, 4000 Hz and 8000 Hz), which were the independent variables, and recorded measurements as sound pressure levels in decibels (dB) during three trials. In total, 30 subjects were recruited from the general population at Texas A&M University. Subjects were randomly assigned and counterbalanced in their assignment to a "quiet" room and a "noisy" room. Subjects used the hEAR mobile hearing screening application to self-administer hearing screening tests. Subjects also had hearing screening examinations performed by a certified audiologist at the identified pre-set frequencies. Data were analyzed using a mixed effect model and testing for repeated measures at 95% confidence intervals, results were separated by room. It was found that the hEAR trials differed from the audiologist trial at almost all frequencies in a noisy environment, but only at 2000 Hz and 8000 Hz for the quiet environment. It was also found that the app trials were very similar to one another (trials 1&2, trials 1&3 and trials 2&3 similar to each other) in the noisy environment; while they statistically differed from one another at almost all frequencies except 125 Hz in a quiet environment. Further research is needed so as to develop hEAR as an effective alternative to an audiologist-administered pure tone hearing test, which can consequently be used for better compliance with OSHA's hearing screening requirements. The electronic version of this dissertation is accessible from http://hdl.handle.net/1969.1/155255
Book Synopsis International Aerospace Abstracts by :
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1964 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bulletin of the Atomic Scientists by :
Download or read book Bulletin of the Atomic Scientists written by and published by . This book was released on 1975-09 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Bulletin of the Atomic Scientists is the premier public resource on scientific and technological developments that impact global security. Founded by Manhattan Project Scientists, the Bulletin's iconic "Doomsday Clock" stimulates solutions for a safer world.
Book Synopsis Prediction of Behavioral Pure-tone Thresholds (500-4000 Hz) Using Both the Single-frequency and Multiple Frequency Auditory Steady State Response Techniques by : Melanie Esders
Download or read book Prediction of Behavioral Pure-tone Thresholds (500-4000 Hz) Using Both the Single-frequency and Multiple Frequency Auditory Steady State Response Techniques written by Melanie Esders and published by . This book was released on 2013 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study attempted to determine the most appropriate clinical protocol for using the Auditory Steady State Response for the prediction of behavioral thresholds. Sixteen normal hearing subjects were tested behaviorally as well as using the ASSR. All subjects were tested using the single-frequency ASSR approach as well as the multiple-frequency ASSR approach in attempts to determine the most accurate predictor of pure-tone behavioral thresholds at 500-4000Hz. Additional test parameters, such as recording channel (ipsilateral versus contralateral) and phase angles of the signal and noise, as well as total recording time were considered to determine the most appropriate protocol for obtaining ASSR thresholds in a clinical environment. The results of this study revealed that a combination of the multiple-frequency and single-frequency ASSR methods yielded the most accurate prediction of pure-tone behavioral thresholds in the most acceptable amount of time.
Author :Department of Health and Human Services Publisher :Createspace Independent Publishing Platform ISBN 13 :9781496001597 Total Pages :122 pages Book Rating :4.0/5 (15 download)
Book Synopsis Occupational Noise Exposure by : Department of Health and Human Services
Download or read book Occupational Noise Exposure written by Department of Health and Human Services and published by Createspace Independent Publishing Platform. This book was released on 2014-02-19 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the Occupational Safety and Health Act of 1970, Congress declared that its purpose was to assure, so far as possible, safe and healthful working conditions for every working man and woman and to preserve our human resources. In this Act, the National Institute for Occupational Safety and Health (NIOSH) is charged with recommending occupational safety and health standards and describing exposure concentrations that are safe for various periods of employment-including but not limited to concentrations at which no worker will suffer diminished health, functional capacity, or life expectancy as a result of his or her work experience. By means of criteria documents, NIOSH communicates these recommended standards to regulatory agencies (including the Occupational Safety and Health Administration [OSHA]) and to others in the occupational safety and health community. Criteria documents provide the scientific basis for new occupational safety and health standards. These documents generally contain a critical review of the scientific and technical information available on the prevalence of hazards, the existence of safety and health risks, and the adequacy of control methods. In addition to transmitting these documents to the Department of Labor, NIOSH also distributes them to health professionals in academic institutions, industry, organized labor, public interest groups, and other government agencies. In 1972, NIOSH published Criteria for a Recommended Standard: Occupational Exposure to Noise, which provided the basis for a recommended standard to reduce the risk of developing permanent hearing loss as a result of occupational noise exposure [NIOSH 1972]. NIOSH has now evaluated the latest scientific information and has revised some of its previous recommendations. The 1998 recommendations go beyond attempting to conserve hearing by focusing on preventing occupational noise-induced hearing loss (NIHL). This criteria document reevaluates and reaffirms the recommended exposure limit (REL) for occupational noise exposure established by the National Institute for Occupational Safety and Health (NIOSH) in 1972. The REL is 85 decibels, A-weighted, as an 8-hr time-weighted average (85 dBA as an 8-hr TWA). Exposures at or above this level are hazardous. By incorporating the 4000-Hz audiometric frequency into the definition of hearing impairment in the risk assessment, NIOSH has found an 8% excess risk of developing occupational noise-induced hearing loss (NIHL) during a 40-year lifetime exposure at the 85-dBA REL. NIOSH has also found that scientific evidence supports the use of a 3-dB exchange rate for the calculation of TWA exposures to noise. The recommendations in this document go beyond attempts to conserve hearing by focusing on prevention of occupational NIHL. For workers whose noise exposures equal or exceed 85 dBA, NIOSH recommends a hearing loss prevention program (HLPP) that includes exposure assessment, engineering and administrative controls, proper use of hearing protectors, audiometric evaluation, education and motivation, recordkeeping, and program audits and evaluations. Audiometric evaluation is an important component of an HLPP. To provide early identification of workers with increasing hearing loss, NIOSH has revised the criterion for significant threshold shift to an increase of 15 dB in the hearing threshold level (HTL) at 500, 1000, 2000, 3000, 4000, or 6000 Hz in either ear, as determined by two consecutive tests. To permit timely intervention and prevent further hearing losses in workers whose HTLs have increased because of occupational noise exposure, NIOSH no longer recommends age correction on individual audiograms.
Book Synopsis Cochlear and Brainstem Implants by : Aage R. Møller
Download or read book Cochlear and Brainstem Implants written by Aage R. Møller and published by Karger Medical and Scientific Publishers. This book was released on 2006-01-01 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt: Today cochlear implants are the most successful of all prostheses of the nervous system. They are used in individuals who are deaf or suffer from a severe hearing deficiency caused by loss of cochlear hair cells. Auditory brainstem implants provide stimulation of the cochlear nucleus and are used in patients with an auditory nerve dysfunction, a deformed cochlea which does not allow cochlear implantation, or traumatic auditory nerve injury. In this volume different aspects of cochlear implantation such as the role of neural plasticity, the interaction with the development of the auditory system, and the optimal time of implantation in children (sensitive periods) are discussed in detail. Further, the processors and the algorithms used in modern cochlear implants are described The second part is devoted to auditory brainstem implants. It describes surgical techniques, methods for intraoperative testing as well as speech processing. It also deals with electrical stimulation of neural tissue and the neurophysiologic basis for cochlear and brainstem implants. The publication provides the latest scientific and clinical knowledge on cochlear and brainstem implants and is highly recommended to audiologists, otolaryngologists and also neurosurgeons.
