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Lexicon for classifying ear-canal shapes [PDF]

open access: yesScientific Reports, 2023
The ear canal is usually described as an S-shaped funnel. In attempting to classify ear-canal shapes obtained from point clouds digitized from molds of 300 ears, the problem of designing criteria for distinguishing and organizing the canal shapes arose ...
J. C. Martinez   +9 more
doaj   +4 more sources

Auditory Attention Reduced Ear-Canal Noise in Humans by Reducing Subject Motion, Not by Medial Olivocochlear Efferent Inhibition: Implications for Measuring Otoacoustic Emissions During a Behavioral Task

open access: yesFrontiers in Systems Neuroscience, 2018
Otoacoustic emissions (OAEs) are often measured to non-invasively determine activation of medial olivocochlear (MOC) efferents in humans. Usually these experiments assume that ear-canal noise remains constant.
Nikolas A. Francis   +6 more
doaj   +2 more sources

Mechanism Cleaning of the Ear Canal [PDF]

open access: yesInventions, 2022
The cleaning of the ear canal is very important, and it is crucial that it is performed by an otolaryngologist as it requires a high level of competence and skill.
Rocío Rodríguez   +3 more
doaj   +3 more sources

In vivo investigation of ear canal pulse oximetry during hypothermia [PDF]

open access: yesJournal of clinical monitoring and computing, 2017
Pulse oximeters rely on the technique of photoplethysmography (PPG) to estimate arterial oxygen saturation (SpO$$_2$$2). In conditions of poor peripheral perfusion such as hypotension, hypothermia, and vasoconstriction, the PPG signals detected are often
K. Budidha, P. Kyriacou
semanticscholar   +3 more sources

The Loudness of Suctioning in the Ear Canal. [PDF]

open access: yesCureus, 2021
Aim To determine the loudness of suctioning in the ear canal with different-sized suctions and various mediums. Aural microsuctioning is commonly used in the otolaryngologist's office setting for cerumen removal and aural toilet. We hypothesize that the intensity of the sound would increase with increasing viscosity of the medium and increasing suction
Byrd C   +3 more
europepmc   +5 more sources

Mass in the ear canal [PDF]

open access: greenPostgraduate Medical Journal, 2003
A 70 year old woman presented to outpatient department with a history of gradually progressive hearing loss in the right ear of one year’s duration. There was no history of ear discharge, pain, tinnitus, or vertigo. Examination revealed a firm, …
Shakuntala Ghosh   +2 more
openalex   +4 more sources

Ear canal papillomas. [PDF]

open access: yesQJM, 2012
A 43-year-old man was referred to our outpatient clinic for a 3-week history of left ear pruritis. Prior medical history was relevant for human immunodeficiency virus (HIV), gonorrhea and multiple sexual partners. Examination revealed several warts throughout the body, with several papillomatous lesions in the left ear canal (Figure 1). Excision of the
O. Abboud, I. Saliba
semanticscholar   +4 more sources

Changes functional prediction of ear canal flora in chronic bacterial otitis externa [PDF]

open access: yesFrontiers in Cellular and Infection Microbiology
ObjectiveTo investigate ear canal microflora’s structure, composition and function in patients with chronic bacterial otitis externa.MethodsA case-control study design method was used to collect the ear canal secretions from 14 patients with chronic ...
Tingting Duan   +6 more
doaj   +2 more sources

Cholesterol granuloma presenting as a mass obstructing the external ear canal [PDF]

open access: hybridBMC Ear, Nose and Throat Disorders, 2010
BackgroundCholesterol granuloma (CG) may involve the middle ear, the mastoid bone and the petrous apex. However, CG presenting as a mass obstructing the external ear canal (EEC) is relatively rare and it can be a diagnostic challenge.Case PresentationWe ...
V. Nikolaidis   +3 more
semanticscholar   +2 more sources

An ear canal deformation based continuous user authentication using earables

open access: yesACM/IEEE International Conference on Mobile Computing and Networking, 2021
Biometric-based authentication is gaining increasing attention for wearables and mobile applications. Meanwhile, the growing adoption of sensors in wearables also provides opportunities to capture novel wearable biometrics.
Z. Wang   +5 more
semanticscholar   +1 more source

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