Results 71 to 80 of about 105,191 (244)

A Biomechanical Model of the Inner Ear: Numerical Simulation of the Caloric Test

The Scientific World Journal, 2013
Whether two vertical semicircular canals can receive thermal stimuli remains controversial. This study examined the caloric response in the three semicircular canals to the clinical hot caloric test using the finite element method.
Shuang Shen, Yingxi Liu, Xiuzhen Sun, Wei Zhao, Yingfeng Su, Shen Yu, Wenlong Liu   +6 more
doaj   +1 more source

Mutation of Rubie, a novel long non-coding RNA located upstream of Bmp4, causes vestibular malformation in mice. [PDF]

PLoS ONE, 2012
The vestibular apparatus of the vertebrate inner ear uses three fluid-filled semicircular canals to sense angular acceleration of the head. Malformation of these canals disrupts the sense of balance and frequently causes circling behavior in mice.
Kristina A Roberts, Victoria E Abraira, Andrew F Tucker, Lisa V Goodrich, Nancy C Andrews   +4 more
doaj   +1 more source

Exceptional preservation informs the paleobiology of tapinocephalid dinocephalians

The Anatomical Record, EarlyView.
Abstract The tapinocephalid dinocephalian Moschops is one of the most iconic taxa of the middle Permian, yet its paleobiology remains one of the least well‐known. Here, we address some aspects of paleoneurology and paleobiology of Moschops using CT scanning of four well preserved skulls from the upper Abrahamskraal Formation of South Africa. Two of the
Julien Benoit, Lars Schmitz, Kenneth D. Angielczyk, Luke A. Norton, Andrew D. Bolton, Adam Midzuk, Roger M. H. Smith   +6 more
wiley   +1 more source

Abnormal Vestibulo–Ocular Reflex Function Correlates with Balance and Gait Impairment in People with Multiple Sclerosis

Audiology Research
Background: Multiple Sclerosis (MS) is the most prevalent autoimmune neurological condition in the world, leading to a wide variety of symptoms, including balance disorders.
Marco Tramontano, Laura Casagrande Conti, Amaranta Soledad Orejel Bustos, Nicola Ferri, Tommaso Lelli, Ugo Nocentini, Maria Grazia Grasso, Andrea Turolla, Paolo Pillastrini, Leonardo Manzari   +9 more
doaj   +1 more source

Anatomy and variation in the paraphyletic Mosasaurus lemonnieri assemblage from the Craie phosphatée de ciply, Belgium

The Anatomical Record, EarlyView.
Abstract Nineteenth century excavations of the Ciply‐Malogne Phosphatic Chalk Formation in Hainaut, Belgium, yielded over 50 partial mosasaur skeletons, the majority of which were referred to the species Mosasaurus lemonnieri Dollo, 1889. In the years since, this taxon has experienced a complicated taxonomic history, and its exceptional hypodigm has ...
Henry S. Sharpe, Hallie P. Street‐Sampson, Takuya Konishi, Michael W. Caldwell   +3 more
wiley   +1 more source

Contributions of single semicircular canals to caloric nystagmus as revealed by canal plugging in rhesus monkeys.

, 1996
We demonstrated specific responses from the anterior and the posterior semicircular canal to irrigation of the outer ear canal with cold water in the Rhesus monkey.
Straumann D, Böhmer A, Hess BJ, Suzuki J, Henn V   +4 more
core   +1 more source

Redescription of the cranial morphology of Amphisbaena braestrupi and Amphisbaena laurenti (Squamata: Amphisbaenidae) from the Pleistocene of Brazil using x‐ray computed tomography

The Anatomical Record, EarlyView.
Abstract Amphisbaenians (Squamata: Amphisbaenidae) are fossorial reptiles with highly specialized cranial morphology, yet their fossil record is frequently limited by fragmentary preservation. This study provides a detailed osteological redescription of the skulls of Amphisbaena braestrupi and Amphisbaena laurenti from the Pleistocene of Lagoa Santa ...
Carolina L. Paiva, Henrique C. Costa, Christy A. Hipsley   +2 more
wiley   +1 more source

Unilateral Triple Canal Repositioning Maneuver: Principles and Design

Audiology Research
Background: Benign paroxysmal positional vertigo is the most common cause of dizziness over the lifespan. Management is complicated by both a diagnostic burden (correctly interpreting specific ocular motor findings) and a therapeutic burden (selecting ...
Marcello Cherchi
doaj   +1 more source

Role of semicircular canals in positional alcohol nystagmus

, 1965
Following unilateral labyrinthectomy or inactivation of one horizontal semicircular canal in cats, a horizontal positional nystagmus was observed when the cat, after ingesting alcohol, was held with the head up or with the head down.
W. H. Johnson, K. E. Money, B. M. A. Corlett   +2 more
core   +1 more source

Gradient p‐p Orbital Hybridization in Bismuth‐Doped Crystalline Carbon Nitride for Dual‐Functional Carbon‐to‐Carbon Valorization

EcoEnergy, EarlyView.
Schematic illustration comparing the charge transfer dynamics and catalytic reaction over the (left) pristine carbon nitride and (right) Bi‐doped carbon nitride photocatalysts. In the pristine system, random charge diffusion and rapid recombination limit catalytic efficiency. In contrast, the Bi‐doped system establishes a robust internal electric field
Joel Jie Foo, Valerine Khoo, Zi‐Jing Chiah, Sue‐Faye Ng, Xianhai Zeng, Wee‐Jun Ong   +5 more
wiley   +1 more source