Results 81 to 90 of about 51,830 (274)

Digital reconstruction of the inner ear of Leptictidium auderiense (Leptictida, Mammalia) and North American leptictids reveals new insight into leptictidan locomotor agility [PDF]

, 2016
Leptictida are basal Paleocene to Oligocene eutherians from Europe and North America comprising species with highly specialized postcranial features including elongated hind limbs. Among them, the European Leptictidium was probably a bipedal runner or
A Christian, A Walker, AW Kellner, B Sigé, B Sigé, CD West, Christian de Muizon, E Frey, EG Ekdale, EG Ekdale, EG Ekdale, EG Ekdale, EG Ekdale, F Spoor, FS Szalay, FS Szalay, G Billet, G Billet, G Billet, G Billet, G Fleischer, G Rathbun, G Rathbun, G Storch, GF Gunnell, GG Simpson, Guillaume Billet, H Tobien, I Ruf, Irina Ruf, J Benoit, J Habersetzer, J Leidy, J Meng, JC Berlin, JJ Hooker, JR Wible, JR Wible, JR Wible, KD Rose, KD Rose, KD Rose, Kenneth D. Rose, KL Welker, M Silva, MA O’Leary, MC McKenna, MC McKenna, MC McKenna, MD Malinzak, MJ Novacek, MJ Novacek, MJ Novacek, MJ Orliac, MR Sánchez-Villagra, MT Silcox, OK Lenz, PD Gingerich, PG Cox, PM Butler, PM Butler, PM Butler, R David, RDE MacPhee, RJ Asher, RJ Asher, RJ Asher, RL Moodie, S Schaal, T Gill, T Schmelzle, TE Macrini, Thomas Lehmann, TM Ryan, Virginie Volpato, W Hennig, W Koenigswald von, W Koenigswald von, W Koenigswald von, W Koenigswald von, W Maier, W Segall, WD Matthew, WD Matthew, WK Gregory, Z-X Luo, Z-X Luo   +86 more
core   +2 more sources

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

The 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, Alexandra Vaupotic, Jaehyun Hwang, Khalil Husein, Mustafa Hafidh, Kyle Rioux, S. Alireza Rohani, Sumit K. Agrawal, Hanif M. Ladak   +8 more
wiley   +1 more source

Ontogeny of murine bony semicircular canal form

The Anatomical Record, EarlyView.
Abstract The labyrinthine geometry and functional anatomy of the semicircular canals have intrigued scientists for decades, and there has been considerable interest in understanding how these complex structures grow and develop with evidence emerging from human studies that size maturation occurs exceptionally early by comparison with other systems ...
Marcela Cárdenas‐Serna, Nathan Jeffery   +1 more
wiley   +1 more source

Management of Lateral Semicircular Canal Benign Paroxysmal Positional Vertigo

Frontiers in Neurology, 2020
Benign paroxysmal positional vertigo (BPPV) is the most common cause of peripheral vestibular vertigo. It is caused by free-floating otoconia moving freely in one of the semicircular canals (canalolithiasis) or by otoliths adhered to the cupula ...
Francisco Zuma e Maia, Bernardo Faria Ramos, Renato Cal, Camila Martins Brock, Pedro Luiz Mangabeira Albernaz, Michael Strupp, Michael Strupp   +6 more
doaj   +1 more source

Inner ear morphology in the Atlantic molly Poecilia mexicana [PDF]

, 2011
Fishes show an amazing diversity in hearing abilities, inner ear structures, and otolith morphology. Inner ear morphology, however, has not yet been investigated in detail in any member of the diverse order Cyprinodontiformes.
Hess, Martin, Plath, Martin, Schulz-Mirbach, Tanja   +2 more
core   +1 more source

Early Pliocene Varanus (Squamata, Varanidae) remains from Megalo Emvolon, Thessaloniki, Greece

The Anatomical Record, EarlyView.
The article describes new cranial and postcranial varanid material from Megalo Emvolon Lower Pliocene vertebrate fossil site near Thessaloniki. The fossils, likely representing a single individual, are referred to Varanus cf. marathonensis. Abstract This study describes new fossil varanid material from a recently discovered fossil spot (MVL site) at ...
Chara Drakopoulou, Georgios L. Georgalis, Georgios Lazaridis, Dimitris S. Kostopoulos   +3 more
wiley   +1 more source

Repeated video head impulse testing in patients is a stable measure of the passive vestibulo-ocular reflex

Journal of Otology, 2021
Objectives: The video head impulse test (vHIT) is used as a measure of compensation yet it’s stability in patients with vestibular pathology is unknown. Methods: 144 patients (n = 72 female, mean 54.46 ± 15.8 years) were grouped into one of three primary
M. Muntaseer Mahfuz, Jennifer L. Millar, Michael C. Schubert   +2 more
doaj   +1 more source

A detailed redescription of a skeletally immature ‘Redondasaurus’ suggests ontogenetic transformations in the taxon mirror phytosaurian morphological evolution

The Anatomical Record, EarlyView.
Abstract The study of morphological evolution is fundamentally tied to ontogeny, yet studies of these heterochronic processes in the fossil record are rare. Fossils belonging to an ontogenetic series are difficult to assign to an ontogenetic stage due to inconsistent proxies for skeletal ages, challenging to taxonomically assign due to morphological ...
Erika R. Goldsmith, Michelle R. Stocker
wiley   +1 more source

Atypical Bilateral Posterior Semicircular Canalolithiasis – A Case Series

Annals of Indian Academy of Neurology
Barany Society includes bilateral typical posterior semicircular canal benign paroxysmal positional vertigo (PSC-BPPV) in its classification of multicanal subtype.
Ajay K Vats, Shreya Vats, Sudhir Kothari, Nishant Aswani   +3 more
doaj   +1 more source

Semicircular canals in Anolis lizards: ecomorphological convergence and ecomorph affinities of fossil species [PDF]

Royal Society Open Science, 2017
Anolis lizards are a model system for the study of adaptive radiation and convergent evolution. Greater Antillean anoles have repeatedly evolved six similar forms or ecomorphs: crown-giant, grass-bush, twig, trunk, trunk-crown and trunk-ground.
Blake V. Dickson, Emma Sherratt, Jonathan B. Losos, Stephanie E. Pierce   +3 more
doaj   +1 more source