Results 91 to 100 of about 169,323 (267)

Tinnitus update: what can be done for the ringing?

open access: yesInternal Medicine Journal, Volume 54, Issue 7, Page 1066-1076, July 2024.
Abstract Physicians will frequently encounter patients who report tinnitus. Tinnitus is a symptom whereby there is the perception of sound or sounds in the ear or head in the absence of an external source of sound. Most individuals experiencing tinnitus will have a neutral reaction to the percept, but in a small proportion of patients, tinnitus can be ...
Benjamin K.T. Tsang   +3 more
wiley   +1 more source

Sensory Systems as Cybernetic Systems that Require Awareness of Alternatives to Interact with the World: Analysis of the Brain-Receptor Loop in Norwich's Entropy Theory of Perception [PDF]

open access: yes, 2009
Introduction & Objectives: Norwich’s Entropy Theory of Perception (1975 [1] -present) stands alone. It explains many firing-rate behaviors and psychophysical laws from bare theory.
Nizami, Lance
core  

An Overview of Electrically Evoked Otoacoustic Emissions in the Mammalian Cochlea [PDF]

open access: yes, 2006
Alternating currents injected into the cochlea are able to evoke outer hair cell-mediated basilar membrane motion, thus give rise to production of otoacoustic emissions.
Jiefu, Zheng   +3 more
core   +1 more source

Coupling of spontaneous emission from GaN/AlN quantum dots into silver surface plasmons [PDF]

open access: yes, 2004
We have demonstrated surface-plasmon induced change in spontaneous emission rate in the ultraviolet regime at ~ 375-380 nm, using AlN/GaN quantum dots (QD). Using time-resolved and continuous-wave photoluminescence measurements, the recombination rate in AlN/GaN QD is shown to be enhanced when spontaneous emission is resonantly coupled to a metal ...
arxiv   +1 more source

Ocorrência de alterações auditivas em lactentes expostos à transmissão vertical do HIV

open access: yesAudiology: Communication Research, 2018
RESUMO Objetivo Verificar a ocorrência de alterações auditivas periféricas e centrais em lactentes expostos à transmissão vertical do HIV. Métodos Análise retrospectiva de 144 prontuários de lactentes que passaram por avaliação auditiva ao nascimento,
Monalisa Alves Dantas Padilha   +2 more
doaj   +1 more source

Self-tuning to the Hopf bifurcation in fluctuating systems

open access: yes, 2005
The problem of self-tuning a system to the Hopf bifurcation in the presence of noise and periodic external forcing is discussed. We find that the response of the system has a non-monotonic dependence on the noise-strength, and displays an amplified ...
Arnold L   +38 more
core   +2 more sources

A novel TTC26 variant in a patient with hexadactyly, pituitary stalk interruption, hepatopathy, nephropathy, and bilateral lip‐palate cleft: A case report and expansion of the phenotype

open access: yesAmerican Journal of Medical Genetics Part A, Volume 194, Issue 5, May 2024.
Abstract Biallelic pathogenic variants in the TTC26 gene are known to cause BRENS (biliary, renal, neurological, skeletal) syndrome, an ultra‐rare autosomal recessive condition with only few patients published to date. BRENS syndrome is characterized by hexadactyly, severe neonatal cholestasis, and involvement of the brain, heart, and kidney, however ...
Dzhoy Papingi   +5 more
wiley   +1 more source

Dynamics of Spontaneous Otoacoustic Emissions: Theory and Experiment [PDF]

open access: yesBiophysical Journal, 2016
The vertebrate ear both responds to and emits sound. Sounds from the ear, known as otoacoustic emissions (OAEs), provide a means to probe the biophysics of auditory transduction and amplification. While the existence of spontaneous emissions (SOAEs) provides compelling evidence for an “active” ear, the mechanisms that produce them, and whether they ...
Christopher Bergevin   +1 more
openaire   +2 more sources

Correlação entre os limiares das curvas de crescimento das EOAPD e tons puros Correlation between DPOAE I/O functions and pure-tone thresholds

open access: yesBrazilian Journal of Otorhinolaryngology, 2011
Diversos estudos foram realizados com o objetivo de correlacionar limiares audiométricos e medidas de emissões otoacústicas - produtos de distorção (EOA-PD).
Ualace de Paula Campos   +1 more
doaj   +1 more source

A Brownian Energy Depot Model of the Basilar Membrane Oscillation with a Braking Mechanism [PDF]

open access: yesarXiv, 2008
High auditory sensitivity, sharp frequency selectivity, and otoacoustic emissions are signatures of active amplification of the cochlea. The human ear can also detect very large amplitude sound without being damaged as long as the exposed time is not too long. The outer hair cells are believed as the best candidate for the active force generator of the
arxiv  

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