Sound Emissions
Mostrando 1-12 de 22 artigos, teses e dissertações.
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1. Distortion Product Otoacoustic Emissions (DPOAEs) In Tinnitus Patients
Abstract Introduction Tinnitus is the perception of sound in the absence of external sound stimulation. There is a general agreement that it is a direct consequence of irreversible and permanent cochlear damage. Objectives The present work is designed to study the distortion product otoacoustic emissions (DPOAEs) in tinnitus patients with normal hearing in
International Archives of Otorhinolaryngology. Publicado em: 2022
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2. The Relationship between Contralateral Suppression of Transient Evoked Otoacoustic Emission and Unmasking of Speech Evoked Auditory Brainstem Response
Abstract Introduction Several studies have shown that efferent pathways of the auditory system improve perception of speech-in-noise. But, the majority of investigations assessing the role of efferent pathways on speech perception have used contralateral suppression of otoacoustic emissions as a measure of efferent activity. By studying the effect of effere
International Archives of Otorhinolaryngology. Publicado em: 2022
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3. Is the Level of Noise in a School Environment be Harmful to the Hearing of Teachers?
Abstract Introduction The excessive noise observed in the school environment can cause damages or losses to the learning process as well as risks to the health of teachers and students, such as physical, mental and social impairments, including, among them, hearing loss. Objective To assess otoacoustic emissions in teachers and determine whether classroom
Int. Arch. Otorhinolaryngol.. Publicado em: 2020-12
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4. Acoustic Emissions from Wind Turbine Blades
ABSTRACT Research on broadband aerodynamic noise from wind turbine blades is becoming important in several countries. In this work, computer simulation of acoustic emissions from wind turbine blades are predicted using quasi empirical model for a three-bladed horizontal axis 3 MW turbine with blade length ~47 m. Sound power levels are investigated for source
J. Aerosp. Technol. Manag.. Publicado em: 10/10/2019
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5. Quality of life of children with poor school performance: association with hearing abilities and behavioral issues
RESUMO Investigar a qualidade de vida de crianças de 7 a 12 anos de idade com mau desempenho escolar e a associação com as características comportamentais e habilidades auditivas. Métodos: Estudo observacional transversal realizado com crianças de 7 a 12 anos de idade, com mau desempenho escolar das escolas públicas municipais de uma cidade do interi
Arq. Neuro-Psiquiatr.. Publicado em: 2019-03
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6. Does Body Mass Index Interfere in the Formation of Speech Formants?
Abstract Introduction Studies in the fields of voice and speech have increasingly focused on the vocal tract and the importance of its structural integrity, and changes in the anatomy and configuration of the vocal tract determine the variations in phonatory and acoustic measurements, especially in the formation of the formants (Fs). Recent studies have re
Int. Arch. Otorhinolaryngol.. Publicado em: 2018-01
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7. Projetos de mecanismo de desenvolvimento limpo (MDL) em aterros sanitários: contribuições das tecnologias ambientais para o desenvolvimento sustentável.
The Kyoto Protocol is regarded as one of the most ambitious global political events on the environment. Through this global environmental governance landmark major industrial nations pledged to cut their emissions of greenhouse gases (GHG) in the atmosphere. To facilitate compliance with emission targets for GHG, three flexibility mechanisms were created. Am
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/07/2011
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8. Aplicabilidad del monitoreo de emisiones del arco eléctrico para el control de calidad en el proceso MAG-S
Ensuring quality in welding is not a trivial task. For this purpose several quality control checks are performed, at the expense, costs and production times are increased. There are several automated welding systems and they are assisted by control systems based on monitoring of welding parameters. However, automated quality monitoring systems are limited an
Soldagem & Inspeção. Publicado em: 2011-12
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9. Oral and vocal fold diadochokinesis in dysphonic women
The evaluation of oral and vocal fold diadochokinesis (DDK) in individuals with voice disorders may contribute to the understanding of factors that affect the balanced vocal production. Scientific studies that make use of this assessment tool support the knowledge advance of this area, reflecting the development of more appropriate therapeutic planning. Obje
Journal of Applied Oral Science. Publicado em: 2011-12
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10. HISTOLOGIA, FUNÇÃO COCLEAR E GENOTOXICIDADE EM COBAIAS TRATADAS COM CISPLATINA / HISTOLOGY, COCHLEAR FUNCTION AND GENOTOXICITY IN GUINEA PIG TREATED WITH CISPLATIN
The present work aims to investigate the cisplatin influence on the cochlea and the deoxiribonucleic acid (DNA) of guinea pigs. An experimental study was executed with 12 guinea pigs (Cavia porcellus). The inclusion criterion for guinea pigs in the sample was the presence of Preyer s reflex (contraction of the pinna when facing sound stimulus) and distortion
Publicado em: 2011
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11. Sistemas de acasalamento com defesa territorial : evolução, regras das disputas e seleção de territorios em satirineos neotropicais / Mating systems with territorial defense : evolution, contest rules and territory selection in neotropical satyrine Butterflies
Territorial conflicts in flying insects may be resolved through many different ways. In male butterflies, size, age and motivation are often reported as important determinants of the winning chances. However, the rules used when fighting, the biological context that affects the intensity of agonistic behaviors, and the functional role of male traits in the c
Publicado em: 2009
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12. Influência da idade na atividade do trato olivococlear medial eferente sobre as propriedades mecânicas da cóclea em indivíduos ouvintes normais / Age influence in the activity of medial efferent olivocochlear tract upon mechanical properties of cochlea in normal hearing individuals
Medial olivocochlear tract makes the efferent control of the outer hair cells, controlling the slow contractions and mitigating rapid contractions. Upon the appearance of techniques for the investigation of the amplitude of otoacoustic emissions with and without acoustic stimulation against, ipsi and bilaterally, it is now possible to stimulate clinically th
Publicado em: 2007