Results 81 to 90 of about 48,743 (277)

A New Genus of Miniaturized and Pug-Nosed Gecko from South America (Sphaerodactylidae: Gekkota) [PDF]

, 2011
Sphaerodactyl geckos comprise five genera distributed across Central and South America and the Caribbean. We estimated phylogenetic relationships among sphaerodactyl genera using both separate and combined analyses of seven nuclear genes.
Bauer, Aaron M., Colli, Guarino R., Daza, Juan D., Gamble, Tony, Vitt, Laurie J.   +4 more
core   +2 more sources

Early synapsids neurosensory diversity revealed by CT and synchrotron scanning

The Anatomical Record, EarlyView.
Abstract Non‐mammaliaform synapsids (NMS) represent the closest relatives of today's mammals among the early amniotes. Exploring their brain and nervous system is key to understanding how mammals evolved. Here, using CT and Synchrotron scanning, we document for the first time three extreme cases of neurosensory and behavioral adaptations that probe ...
J. Benoit, R. Araujo, E. S. Lund, A. Bolton, T. Lafferty, Z. Macungo, V. Fernandez   +6 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

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

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

Predicting ecology and hearing sensitivities in Parapontoporia—An extinct long‐snouted dolphin

The Anatomical Record, EarlyView.
Abstract Analyses of the cetacean (whale and dolphin) inner ear provide glimpses into the ecology and evolution of extinct and extant groups. The paleoecology of the long‐snouted odontocete (toothed whale) group, Parapontoporia, is primarily marine with its depositional context also suggesting freshwater tolerance.
Joyce Sanks, Rachel Racicot
wiley   +1 more source

Zuma Modified Maneuver as a Treatment to Geotropic Lateral Semicircular Canal Benign Paroxysmal Positional Vertigo

International Archives of Otorhinolaryngology, 2021
Introduction Benign Paroxysmal Positional Vertigo (BPPV) is the most common vestibular disorder, resulting from detached otoliths that migrate to one of the semicircular canals – canalolithiasis – or one of the cupulas – cupulolithiasis.
Bernardo Faria Ramos, Renato Cal, Camila Martins Brock, Pedro Luiz Mangabeira Albernaz, Francisco Zuma e Maia   +4 more
doaj   +1 more source

Disparity of turbinal bones in placental mammals

The Anatomical Record, EarlyView.
Abstract Turbinals are key bony elements of the mammalian nasal cavity, involved in heat and moisture conservation as well as olfaction. While turbinals are well known in some groups, their diversity is poorly understood at the scale of placental mammals, which span 21 orders.
Quentin Martinez, Mark Wright, Benjamin Dubourguier, Kai Ito, Thomas van de Kamp, Elias Hamann, Marcus Zuber, Gabriel Ferreira, Rémi Blanc, Pierre‐Henri Fabre, Lionel Hautier, Eli Amson   +11 more
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