Download or read book Distortion Product Otoacoustic Emissions in Individuals with Noise Exposure and Presbycusis microform written by Carrie J. (Carrie Jane) Tobolski and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 2000 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Distortion Product Otoacoustic Emission Components as a Potential Marker of Preclinical Noise Injury to the Cochleas written by Gavin Coad and published by . This book was released on 2013 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Background: Excessive noise exposure can lead to noise induced hearing loss (NIHL) and hearing conservation programmes are essential to prevent occupational hearing loss. These programmes rely on monitoring hearing using pure tone audiometry. However, audiometry is not very sensitive and only detects a permanent hearing loss after significant injury has occurred. Distortion product otoacoustic emissions (DPOAEs) are generated by cochlear non-linear physiological processes associated with the outer hairs cells that underpin detection of sound, thus DPOAEs have promise as a tool to detect and monitor cochlear hair cell damage in NIHL. The DPOAE has two components, one generated at the point of interaction between the primaries (generator), the second reflected from the characteristic place of the DPOAE frequency (reflected). Some of the variability in DPOAE is believed to result from the interaction of the components, termed the DPOAE fine structure, and extracting the components may reduce the variability and improve the sensitivity of the DPOAE to injury. This study investigated the feasibility and reliability of a new approach to separating the DPOAE components, and their relationship to hearing measures in people with and without exposure to noise. Methods: Logarithmically swept primaries with a least-squares-fit (LSF) analysis were used to separate the DPOAE components, and the approach was evaluated and optimised in normally hearing subjects. Two studies followed that investigated the components of the DPOAE and how they correlate with behavioural measures of hearing. Firstly, in subjects (n=16) with 'normal' hearing (20 dB HL), both behavioural measures of the auditory filter (notched-noise maskers) and threshold were compared to the components of the DPOAE. In the second study subjects (108 men) with a mixture of thresholds, noise exposure and age were recruited and then divided into two equal sized and age matched groups (noise exposed and non-noise exposed) based on a detailed history of self-reported noise exposure. The DPOAE components were compared to audiometric threshold and behavioural measures of compressive nonlinearity using Schroeder-phase masked thresholds. Results: Overall, psychoacoustic measures of auditory filter and cochlear non-linearity were influenced by audiometric threshold, and exhibited no relationship with DPOAE level in subjects with 'normal' hearing (
Download or read book The Change in Distortion Product Otoacoustic Emissions in Subjects at Risk for Noise induced Hearing Loss written by Meaghan Patrick Reed and published by . This book was released on 2002 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measures of Distortion Product Otoacoustic Emissions and Frequency Resolution in Clinically Normal Hearing Subjects with a History of Noise Exposure written by Janet Caffee and published by . This book was released on 1997 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Feasibility of Including Distortion Product Otoacoustic Emissions DPOAEs in the Annual Medical Surveillance Test Battery for the Identification of Noise induced Hearing Loss in a Group of Workers in a Beverage Manufacturing Industry written by Tarryn Marisca Reddy and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of Short Term Narrowband Noise Exposure on Distortion Product Otoacoustic Emissions DPOAEs in Humans written by Barbara Ann Sudeyko and published by . This book was released on 1994 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Longitudinal Analysis of Noise induced Hearing Loss Using Distortion Product Otoacoustic Emission written by Chang Liu and published by . This book was released on 2011 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Snoring and Obstructive Sleep Apnea written by David N. F. Fairbanks and published by Lippincott Williams & Wilkins. This book was released on 2003 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Completely updated, this volume is a practical, authoritative guide to the diagnosis and management of sleep-related breathing disorders. This Third Edition provides a more comprehensive treatment approach, focusing on surgical treatment but recognizing the growing importance of medical management of snoring/sleep disorders. Noted experts in the fields of otolaryngology, head and neck surgery, pulmonology, and sleep medicine examine the pathophysiology of these disorders, their clinical presentations in adults and children, the diagnostic workup, and the latest and most effective drugs, devices, oral appliances, and surgical procedures. An in-depth discussion of patient selection and treatment decisions is also included.
Download or read book Auditory Electrophysiology written by Samuel R. Atcherson and published by Thieme. This book was released on 2012-04-20 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: A practical laboratory-to-clinic guide on the basics of auditory electrophysiology Written primarily by audiologists familiar with cutting-edge research in a rapidly changing field, Auditory Electrophysiology provides a fresh perspective on the most current advances and practices in the specialty. Research and clinical information are presented separately to facilitate learning and provide a more practical organization of the material. In addition to clinical applications and case studies, this text includes sections on the foundational science and historical background of auditory evoked potentials as well as clinical practice and management. Key Features: Includes case studies written by clinicians who are experts in auditory evoked potentials, helping to highlight clinical applications in the specialty Discusses how auditory electrophysiology techniques are used in central auditory function testing Provides practical guidelines on how to write a clinical report, with easy-to-use templates, helping readers quickly master report writing Contains a chapter on the application of principles of evidence-based practice, to guide clinical technique and analysis of auditory evoked potentials Ideal as an introduction to the field for graduate students in audiology and ENT residents, Auditory Electrophysiology is also a useful guide for clinicians who want to refresh their skills or add to their practice. It fills a gap in the literature for an up-to-date text and reference on all aspects of auditory evoked potentials.
Download or read book Oxford Handbook of Clinical Medicine written by R. A. Hope and published by Oxford University Press, USA. This book was released on 1993 with total page 860 pages. Available in PDF, EPUB and Kindle. Book excerpt: This practical handbook of medical practice has been updated and revised to take into account the modern developments in clinical medicine. It has new chapters on oncology and radiology. The main focus is on clinical management, although disease background
Download or read book Binaural Interference a Guide for Audiologists written by James Jerger and published by Plural Publishing. This book was released on 2018-02-23 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt: Binaural interference occurs when the speech input to one ear interferes with the input to the other ear during binaural stimulation. The first published study on binaural interference twenty-five years ago demonstrated that some individuals, particularly older individuals, perform more poorly with two hearing aids than with one and/or more poorly with binaural than monaural stimulation on electrophysiologic as well as behavioral measures. Binaural interference is relevant to every audiologist because it impacts the successful use of binaural hearing aids and may explain communicative difficulty in noise or other challenging listening situations in persons with normal-hearing sensitivity as well as persons with hearing loss. This exciting new book written by two highly respected audiologists first traces the history of its study by researchers, then reviews the evidence, both direct and indirect, supporting its reality. This is followed by a discussion of the possible causes of the phenomenon and in-depth analysis of illustrative cases. The authors outline a systematic approach to the clinical detection, evaluation and amelioration of individuals who exhibit binaural interference. Suggestions are furnished on improved techniques for evaluation of the binaural advantage in general and on sensitized detection of the disorder in particular. The book ends with recommendations for future directions. Given the adverse impact of binaural interference on auditory function and its occurrence in a significant subset of the population with hearing loss, as well as in some individuals with normal-hearing sensitivity, research on binaural interference only recently has begun to flourish, and adaptation of audiologic clinical practice to identify, assess, and manage individuals with binaural interference has yet to become widespread. The authors intend for the book to provide impetus for pursuing further research and to encourage audiologists to explore the possibility of binaural interference when patient complaints suggest it and when performing audiologic evaluations. The book is intended for practicing clinical audiologists, audiology students, and hearing scientists.
Download or read book Paparella s Otolaryngology Head Neck Surgery written by Michael M Paparella and published by Jaypee Brothers Medical Publishers. This book was released on with total page 1066 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ear Organs of Hearing and Balance written by Anatomical Chart Company Staff and published by . This book was released on 2001-01-01 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Illustrates ear anatomy including right auricle, right tympanic membrane, middle ear, auditory ossicles, membranous labryinth, membranous ampulla, organ of corti, macula of saccule. Also explains and shows how we hear - the physiology of sound.Size is 20" W by 26" H.Printed on medium grade, gloss paper.
Download or read book Report of the National Research Council written by National Research Council (U.S.) and published by . This book was released on 1931 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Microbiology of Respiratory System Infections written by Kateryna Kon and published by Academic Press. This book was released on 2016-06-20 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Microbiology of Respiratory System Infections reviews modern approaches in the diagnosis, treatment, and prophylaxis of respiratory system infections. The book is very useful for researchers, scientists, academics, medical practitioners, graduate and postgraduate students, and specialists from pharmaceutical and laboratory diagnostic companies. The book has been divided into three sections according to the types of respiratory pathogens. The first section contains reviews on the most common and epidemiologically important respiratory viruses, such as influenza virus, severe acute respiratory system coronavirus, and recently discovered Middle East respiratory syndrome coronavirus. The second section is devoted to bacterial and fungal pathogens, which discusses etiology and pathogenesis including infections in patients with compromised immune system, and infections caused by fungal pathogens, such as Aspergillus and Pneumocystis. The third section incorporates treatment approaches against different types of bacterial infections of the lower respiratory tract. This section reviews classical antimicrobial and phytomedical approaches as well as the application of nanotechnology against respiratory pathogens. - Offers the most up to date information on the microbiology of lower respiratory system infections - Features contributors from across the world, presenting questions of interest to readers of both developed and developing countries - Reviews the most common and epidemiologically important respiratory viruses - Discusses the etiology and pathogenesis of bacterial and fungal pathogens including infections in patients with compromised immune system, and infections caused by fungal pathogens, such as Aspergillus and Pneumocystis
Download or read book Alphaherpesviruses written by Sandra Knowles Weller and published by Caister Academic Press Limited. This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Alphaherpesviruses are a fascinating group of DNA viruses that includes important human pathogens such as herpes simplex virus type 1 (HSV-1), HSV-2, and varicella-zoster virus (VZV): the causative agents of cold sores, genital ulcerous disease, and chickenpox/shingles, respectively. A key attribute of these viruses is their ability to establish lifelong latent infection in the peripheral nervous system of the host. Such persistence requires subversion of the host's immune system and intrinsic antiviral defense mechanisms. Understanding the mechanisms of the immune evasion and what triggers viral reactivation is a major challenge for today's researchers. This has prompted enormous research efforts into understanding the molecular and cellular biology of these viruses. This up-to-date and comprehensive volume aims to distill the most important research in this area providing a timely overview of the field. Topics covered include: transcriptional regulation, DNA replication, translational control, virus entry and capsid assembly, the role of microRNAs in infection and oncolytic vectors for cancer therapy. In addition there is coverage of virus-host interactions, including apoptosis, subversion of host protein quality control and DNA damage response pathways, autophagy, establishment and reactivation from latency, interferon responses, immunity and vaccine development. Essential reading for everyone working with alphaherpesviruses and of interest to all virologists working on latent infections.
Download or read book Urinary Tract Pathology written by and published by . This book was released on 1992 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
