Results 121 to 130 of about 172,842 (350)

The lower jaw of Devonian ray‐finned fishes (Actinopterygii): Anatomy, relationships, and functional morphology

open access: yesThe Anatomical Record, EarlyView.
Abstract Actinopterygii is a major extant vertebrate group, but limited data are available for its earliest members. Here we investigate the morphology of Devonian actinopterygians, focusing on the lower jaw. We use X‐ray computed tomography (XCT) to provide comprehensive descriptions of the mandibles of 19 species, which span the whole of the Devonian
Ben Igielman   +11 more
wiley   +1 more source

Otogenic meningoencephalomyelitis due to (VGII) infection in a cat from Western Australia

open access: yesJournal of Feline Medicine and Surgery Open Reports, 2015
Case summary A 7-year-old spayed domestic longhair cat from Perth, Western Australia, presented with left-sided head tilt, dysphonia, head shaking, inappetence and weight loss.
Meng K Siak   +6 more
doaj   +1 more source

The impact of using real ear measures to calculate prescriptive targets on hearing aid follow-up visits [PDF]

open access: yes, 2013
To fit hearing aids, estimated values are used to convert dB HL to dB SPL. This does not account for variance in ear canal shape and volume. Measured RECDs can change the NAL-NL1 targets. The purpose of this study was to evaluate if patients that deviate
Nelson, Staci R
core   +1 more source

Hyperproliferation markers in ear canal epidermis.

open access: yesBrazilian journal of otorhinolaryngology, 2011
Several studies involving immunohistochemical methods to assess external auditory canal epidermis have been performed with different objectives. With this method it is possible to assess the expression of various antigens such as cytokeratins, cytokines, and hyperproliferation markers among others.to revise, describe and analyze the knowledge generated
Gurgel, João Daniel Caliman e   +3 more
openaire   +2 more sources

Syringoid eccrine carcinoma involving the external ear canal and middle ear, first case report in Latin America

open access: gold, 2021
Santiago Hernández   +3 more
openalex   +1 more source

Intraspecific variation of cochlear morphology in bowhead and beluga whales

open access: yesThe Anatomical Record, EarlyView.
Abstract The bony labyrinth of the petrosal bone, a distinctive feature of mammal skulls, is often identified in micro‐computed tomography imaging to infer species' physiological and ecological traits. When done as part of a comparative study, one individual specimen is normally considered representative of a species, and intraspecific variation is ...
John Peacock, J. G. M. Thewissen
wiley   +1 more source

Incidence of External Ear Canal Folliculitis

open access: yesJournal of Rawalpindi Medical College, 2017
To analyze the incidence of External Ear Canal Folliculitis (EECF) in adult population of district Bannu. Methods: In this descriptive study 100 patients with ear ache, presented in four quarters of the year were included.
Mohammad Iqba
doaj  

Measurement of the Mechanical Impedance of Ear Cartilage and Development of a Coupler for Vibrator Evaluation of Cartilage Conduction Hearing Aids

open access: yesApplied Sciences
Cartilage conduction hearing aids (CCHAs) are new devices that have attracted attention in recent years for external auditory canal atresia. In these devices, a vibrator is attached to the ear cartilage to transmit sound through vibration. In this study,
Shin-ichi Ishikawa   +2 more
doaj   +1 more source

Statistical shape modeling of the human inner ear through micro‐computed tomography imaging

open access: yesThe Anatomical Record, EarlyView.
In this study, 54 cadaveric temporal bone specimens underwent high‐resolution micro‐CT imaging. Images were semi‐automatically segmented and converted to 3D surface mesh models for morphological measurement and analysis. Statistical shape models were created for the inner ear, cochlea, and vestibular system, as well as for sex‐ and side‐based subgroups.
Carmine Spedaliere   +8 more
wiley   +1 more source

Multiple myeloma presenting with external ear canal mass [PDF]

open access: yes, 2017
The manifestations of multiple myeloma are protean and related to bony osteolytic lesions, and to medullar and renal insufficiency. We report a patient who presented with otalgia as the inaugural symptom of multiple myeloma.
Abele, R.   +6 more
core  

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