Results 61 to 70 of about 44,749 (185)

New craniodental materials of Falcarius utahensis (Theropoda: Therizinosauria) reveal patterns of intraspecific variation and cranial evolution in early coelurosaurians

The Anatomical Record, EarlyView.
Abstract Despite documented ecomorphological shifts toward an herbivorous diet in several coelurosaurian lineages, the evolutionary tempo and mode of these changes remain poorly understood, hampered by sparse cranial materials for early representatives of major clades. This is particularly true for Therizinosauria, with representative crania best known
William J. Freimuth, Lindsay E. Zanno
wiley   +1 more source

New techniques for old bones: Morphometric and diffeomorphometric analysis of the bony labyrinth of the Reilingen and Ehringsdorf Neandertals

The Anatomical Record, EarlyView.
Abstract Neandertals are known to possess very distinctive traits in their bony labyrinth morphology, such as an inferiorly positioned posterior canal and a very low number of turns in the cochlea. Hence, the inner ear has been often used to assess the Neandertal status of fragmentary fossils.
Alessandro Urciuoli, Julia Diez‐Valero, Ignacio Martínez, Rolf Quam, Brian A. Keeling, Nicole M. Webb, Mercedes Conde‐Valverde   +6 more
wiley   +1 more source

Computer Aided Modeling of Human Mastoid Cavity Biomechanics Using Finite Element Analysis

EURASIP Journal on Advances in Signal Processing, 2010
The aim of the present study was to analyze the human mastoid cavity on sound transmission using finite element method. Pressure distributions in the external ear canal and middle ear cavity at different frequencies were demonstrated. Our results showed
Chou Yuan-Fang, Chen Peir-Rong, Liu Tien-Chen, Lee Wen-Jeng, Lee Chia-Fone, Chen Jyh-Horng   +5 more
doaj  

Ear canal collapse prevalence and associated factors among users of a center of prevention and rehabilitation for disabilities

Revista CEFAC
Purpose: to investigate the prevalence of the ear canal collapse when using supra-aural earphones and to verify if this event is influenced by sex, age, color of the skin and prominent ear. Methods: the collapse was assessed by a visual inspection after
Elisana Costa Dourado, Ana Paula Corona, Silvia Ferrite   +2 more
doaj   +1 more source

Investigating the Effect of Ear Canal Length on Improving Earplugs and Earmuffs Performance at 400 and 500 Hz Frequencies

International Journal of Environmental Health Engineering
Aim: The aim of this study was noise reduction at 400 Hz and 500 Hz frequencies using earplugs and earmuffs, by varying the length of a simulated ear canal.
Hossein Ebrahimi, Farhad Forouharmajd, Siamak Pourabdian, Kamyar Nazaryan   +3 more
doaj   +1 more source

Free Nasal Septal Cartilage Graft for Extensive Defects of the External Auditory Canal: A Case Report

Journal of Plastic and Reconstructive Surgery
External canal reconstruction of extensive tissue defects, including auricle or ear canal defects, is challenging. We describe the case of a 28-year-old man who underwent staged skin and nasal septum cartilage grafting for ear canal reconstruction after ...
Toru Miyanaga, Yuko Kinoshita, Takayoshi Kaneko, Mikio Yagishita, Miyuki Kishibe, Masanobu Yamashita, Kenichi Shimada   +6 more
doaj  

Topical steroid induced chronic eczematous external otitis with consisting of external ear cavity: A case report

Turkish Archives of Otorhinolaryngology, 2012
Chronic eczematous external otitis is often seen in older women, and constant itching outer ear. The inlet part of the external auditory canal red, scaly, dry, and often there is no serumen the remaining parts of the canal.
Cengiz Arlı, Cengiz Çevik, Ercan Akbay, Ali Açıkalın   +3 more
doaj   +1 more source

Hyperproliferation markers in ear canal epidermis.

Brazilian 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, Pereira, Celina Siqueira Barbosa, Alves, Adriana Leal, Ribeiro, Fernando Quintanilha   +3 more
openaire   +2 more sources

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

Journal 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, Amanada Paul, Randi Drees, Ian Arthur, Amanda K Burrows, Anna J Tebb, Richard Malik   +6 more
doaj   +1 more source

Incidence of External Ear Canal Folliculitis

Journal 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