Sound Change
Mostrando 1-12 de 78 artigos, teses e dissertações.
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1. 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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2. Masking Level Difference and Electrophysiological Evaluation in Adults with Normal Hearing
Abstract Introduction The auditory structures of the brainstem are involved in binaural interaction, which contributes to sound location and auditory figure-background perception. Objective To investigate the performance of young adults in the masking level difference (MLD) test, brainstem auditory-evoked potentials (BAEPs) with click stimulus, and frequen
Int. Arch. Otorhinolaryngol.. Publicado em: 2020-12
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3. Exposição e reatividade do prematuro ao ruído em incubadora
RESUMO Objetivo Avaliar a exposição e a reatividade do prematuro ao ruído intenso durante o cuidado em incubadora. Método Estudo observacional prospectivo na unidade de cuidados intermediários de um hospital de Ribeirão Preto (SP). Na primeira etapa do estudo (dimensionamento do ruído) participaram 35 prematuros e na segunda (análise da reatividade
CoDAS. Publicado em: 07/11/2019
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4. Mismatch Negativity in Childrenwith Cochlear Implant
Abstract Introduction The mismatch negativity (MMN) is a negative long-latency auditory potential elicited by any discriminable change in a repetitive aspect of auditory stimulation. This evoked potential can provide cortical information about the sound processing, including in children who use cochlear implants. Objective To identify MMN characteristics
Int. Arch. Otorhinolaryngol.. Publicado em: 07/10/2019
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5. Effect of Boundary Layer and Rotor Speed on Broadband Noise from Wind Turbines
ABSTRACT: Trailing edge surface of aerofoil is an important source of broadband aerodynamic noise production. In this paper, three aerofoil self-noise mechanisms from turbulent boundary layer near trailing edge surface are studied. Numerical computations were performed for a three bladed 2 MW horizontal axis upwind turbine of blade length 37 m and source hei
J. Aerosp. Technol. Manag.. Publicado em: 03/06/2019
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6. Processamento auditivo (central) em escolares das séries iniciais de alfabetização
RESUMO Objetivo Caracterizar e comparar os testes comportamentais do processamento auditivo central de escolares das séries iniciais nas etapas, teste e reteste; e correlacionar as variáveis idade e gênero com os resultados destes testes. Método Estudo coorte, analítico, observacional, longitudinal e prospectivo; desenvolvido em uma escola da rede p
CoDAS. Publicado em: 25/02/2019
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7. Cognatos obscuros e reconstrução lexical: notas sobre a diacronia das línguas arawak xinguanas
Resumo O presente artigo traz evidências em favor da hipótese de que o termo Xinguano para ‘mão’, *wɨʂɨku, constitui uma inovação lexical compartilhada pelas línguas deste ramo da família Arawak e, ainda, que formações para ‘dedo’, envolvendo a composição das raízes nominais para ‘mão’ e ‘cabeça’, *kapɨ-tɨwɨ, colocam o Wau
Bol. Mus. Para. Emílio Goeldi. Ciênc. hum.. Publicado em: 2016-04
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8. How erosive drinks and enzyme inhibitors impact bond strength to dentin
Concern has been raised about the bonding of restorative procedures to an erosive lesion, given the change in organic and inorganic composition and structure of this substrate. This in vitro study evaluated the effect of erosive drinks and an enzyme inhibitor (2% chlorhexidine digluconate – 2% CHX) on bond strength to dentin. Sixty sound human third molars
Braz. oral res.. Publicado em: 2015
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9. Workhardening behaviour and microstructural analysis of failed austenitic manganese steel crusher jaws
This study focussed on the work hardening behaviour and microstructure of austenitic manganese steel relative to premature failure of crusher jaws. Samples of sound and failed crusher jaws were taken, the change with depth from the working surface to the sample core was measured and their microstructures observed. The study revealed a sharp hardness gradient
Mat. Res.. Publicado em: 03/09/2013
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10. Inovação para a sustentabilidade
The transition to sustainable standards of production and consumption within a scenario of decreased availability of natural resources, growing population and climate change is essential to meet current challenges facing mankind. A strategy to meet these challenges should contain elements different from current approaches for industrial production. This work
Quím. Nova. Publicado em: 2013
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11. AvaliaÃÃo da reaÃÃo de crianÃas submetidas à anestesia odontolÃgica local com seringa convencional e com desenho externo modificado / Evaluation of the reaction of children anesthetized with a traditional syringe and a modified syringe
Despite advances in Odontology, fear and anxiety regarding dentistry still affect a large number of people who, because of their fears, fail to seek treatment; this can result in low levels of oral health. The physical appearance of the instruments used by dentists seems to be a major cause of such fear and anxiety with regard to dentistry. The anesthetic sy
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/04/2012
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12. O planejamento econômico no Brasil: considerações críticas
In the past thirty years, a series of plans have been developed by successive Brazilian governments in a continuing effort to maximize the nation's resources for economic and social growth. This planning history has been quantitatively rich but qualitatively poor. The disjunction has stimulated Professor Mello e Souza to address himself to the problem of nat
Rev. Adm. Pública. Publicado em: 2012-12