Results 111 to 120 of about 32,144 (247)

New insights into Ituglanis (Siluriformes: Trichomycteridae) diversity in Bahia State, eastern Brazil: Description of a new species and conservation status reappraisal

Journal of Fish Biology, EarlyView.
Abstract The northeastern Atlantic Forest of Brazil harbours a remarkable diversity of species of Trichomycteridae, many of which remain poorly understood. This study describes a new species of Ituglanis, endemic to the Ribeirão São Roque, a stream tributary of Rio Piabanha, an affluent of Rio Colônia basin, Bahia State, Brazil.
Paulo J. Vilardo, Axel M. Katz, Wilson J. E. M. Costa   +2 more
wiley   +1 more source

Benign paroxysmal positional vertigo

Journal of Indira Gandhi Institute of Medical Sciences
Benign paroxysmal positional vertigo (BPPV) is the leading etiology of peripheral vertigo. It manifests with transient, recurring bouts of vertigo brought on by movements of the head.
Santosh Kumar Swain
doaj   +1 more source

Síndrome da deiscência do canal semicircular superior: A propósito de dois casos clínicos.

Revista Portuguesa Otorrinolaringologia e Cirurgia de Cabeça e Pescoço, 2011
A Síndrome da Deiscência do Canal Semicircular Superior (SDCSS) caracteriza-se por sintomas vestibulares induzidos por estímulos sonoros intensos (Fenómeno de Tullio) ou por variações da pressão intracraniana ou ouvido médio, e por hipoacusia de ...
Joana Guimarães, Daniel Miranda, Filipa Carvalho Moreira, Nuno Marçal, Gabriel Pereira, Sérgio Vilarinho, Matos Gonçalves, Rui Pratas   +7 more
doaj   +1 more source

Lentipes ptasan, a new species of sicydiine goby (Teleostei: Gobioidei) from the Western Pacific, with a redescription of L. mindanaoensis

Journal of Fish Biology, EarlyView.
Abstract Lentipes ptasan sp. nov. is described based on specimens collected from Taiwan and Mindanao Island. It is a large‐sized Lentipes species distinguished by several male‐specific characteristics, including an upper lip protruding beyond snout obviously, fewer premaxillary tricuspid teeth, two black lines running from the front of the eye through ...
Wei‐Cheng Jhuang, Cleto L. Nañola Jr., Xiao Fei Li, Te‐Yu Liao   +3 more
wiley   +1 more source

Size, not phylogeny, explains the morphology of the endosseous labyrinth in the crown clade Crocodylia

Journal of Anatomy, Volume 246, Issue 4, Page 558-574, April 2025.
Here, we present the most complete dataset to date on the endosseous labyrinths of extant crocodylians. Using 3D geometric morphometrics, we show that allometry constitutes a major contributor of the shape variation of the crocodylian endosseous labyrinths and that the development of this structure is likely linked to the braincase conformation, in all
Yohan Pochat‐Cottilloux, Gwendal Perrichon, Lionel Hautier, Nicolas Rinder, Romain Amiot, Irena Raselli, Jérôme Adrien, Joël Lachambre, Vincent Fernandez, Jeremy E. Martin   +9 more
wiley   +1 more source

Intractable Persistent Direction-Changing Geotropic Nystagmus Improved by Lateral Semicircular Canal Plugging

Case Reports in Otolaryngology, 2015
Antigravitational deviation of the cupula of the lateral semicircular canal, which is also called light cupula, evokes persistent direction-changing geotropic nystagmus with a neutral point. No intractable cases of this condition have been reported.
Toru Seo, Kazuya Saito, Katsumi Doi
doaj   +1 more source

A spatial disorientation predictor device to enhance pilot situational awareness regarding aircraft attitude [PDF]

An effort was initiated at the Armstrong Aerospace Medical Research Laboratory (AAMRL) to investigate the improvement of the situational awareness of a pilot with respect to his aircraft's spatial orientation. The end product of this study is a device to
Albery, W. B., Chelette, T. L., Repperger, Daniel W.   +2 more
core   +1 more source

Osteology and arthrology of the ankle and tarsometatarsus of anoles (Iguania: Anolidae): not convergent with geckos but divergent from the ancestral iguanian condition

Journal of Anatomy, EarlyView.
Geckos and anoline iguanid lizards are well‐known for their possession of adhesive toepads, which are generally regarded as being convergent structures. We show that the anatomical configuration of the foot in these two lineages differs markedly and that these differences likely relate to the contrasing ways they deploy their adhesive systems and ...
Anthony P. Russell, Lisa D. McGregor, Timothy E. Higham   +2 more
wiley   +1 more source

Ossification of the cranium of Inpaichthys kerri (Characiformes: Acestrorhamphidae) with discussion of paedomorphic traits in the genus

Journal of Anatomy, EarlyView.
In this study, we present a detailed description of the cranial development of Inpaichthys kerri (Characiformes: Acestrorhamphidae), highlighting important topics such as pedomorphic characters and their relationship with ontogeny and phylogeny, as well as ossification sequences unique to the species. Abstract The study of development provides valuable
Yasmim De Santana Santos, Manoela M. F. Marinho   +1 more
wiley   +1 more source

La dehiscencia del canal semicircular superior como forma de presentación de la vestibulopatía periférica

Medicentro, 2017
Introducción: la dehiscencia del canal semicircular superior es una alteración del oído interno caracterizada por la ausencia parcial de la cobertura ósea de dicho canal. En condiciones normales, el oído interno solamente tiene dos ventanas: la oval y la
Ariel Cabrera Pérez, Mayte Treto Fernández, Idalmis García Martínez   +2 more
doaj