Results 101 to 110 of about 89,724 (314)

The lower jaw of Devonian ray‐finned fishes (Actinopterygii): Anatomy, relationships, and functional morphology

The Anatomical Record, EarlyView.
Abstract Actinopterygii is a major extant vertebrate group, but limited data are available for its earliest members. Here we investigate the morphology of Devonian actinopterygians, focusing on the lower jaw. We use X‐ray computed tomography (XCT) to provide comprehensive descriptions of the mandibles of 19 species, which span the whole of the Devonian
Ben Igielman, Rodrigo Tinoco Figueroa, Robert R. Higgins, Stephanie E. Pierce, Michael I. Coates, Emily M. Troyer, Vincent Fernandez, Kathleen Dollman, Jing Lu, Min Zhu, Matt Friedman, Sam Giles   +11 more
wiley   +1 more source

BiofilmQuant: A Computer-Assisted Tool for Dental Biofilm Quantification

, 2014
Dental biofilm is the deposition of microbial material over a tooth substratum. Several methods have recently been reported in the literature for biofilm quantification; however, at best they provide a barely automated solution requiring significant ...
Mansoor, Awais, Patsekin, Valery, Rajwa, Bartlomiej, Robinson, J. Paul, Scherl, Dale   +4 more
core   +1 more source

Science-in-brief: Clinical highlights from BEVA Congress 2016 [PDF]

, 2017
No abstract ...
Chauché, C., Kennedy, R.
core   +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

Stress Distribution and Tooth Displacement Analysis of Maxillary Molar Distalization by Different Designs of Jig in a Finite Element Study [PDF]

Journal of Dentistry
Statement of the Problem: Despite the prevalence of CL.II malocclusion, still the best mechanotherapy for non-extraction treatment is not verified. Purpose: The aim of the present study was to evaluate the stress distribution and tooth displacement ...
Hooman Zarif Najafi, Hamid Reza Pakshir, Faezeh Bahraini   +2 more
doaj   +1 more source

Dimpling process in cold roll metal forming by finite element modelling and experimental validation [PDF]

, 2014
The dimpling process is a novel cold-roll forming process that involves dimpling of a rolled flat strip prior to the roll forming operation. This is a process undertaken to enhance the material properties and subsequent products’ structural performance ...
Castellucci, M A, English, M A, Mynors, D J, Nguyen, V B, Wang, C J   +4 more
core   +1 more source

3D anatomical atlas of the heads of male and female adult Chamaeleo calyptratus

The Anatomical Record, EarlyView.
The veiled chameleon is a model organism in reptile development research. Utilizing contrast‐enhanced microCT and deep learning segmentation models, we have generated the first digital atlases of the skull, nervous system, cranial muscles and hyolingual muscles.
Alice Leavey, Eloy Gálvez‐López, Anthony Herrel, Laura B. Porro   +3 more
wiley   +1 more source

Environmental enrichment for Killer whales Orcinus orca at zoological institutions: untried and untested [PDF]

, 2017
Despite a history in zoological institutions stretching back more than 50 years, with associated improvements in husbandry and breeding, the keeping of Killer whales Orcinus orca in zoos and aquariums has become highly controversial.
Kitchener, A.C., Law, G.
core   +1 more source

Morphological variation in atlas and axis of Neotropical spiny rats (Rodentia, Echimyidae)

The Anatomical Record, EarlyView.
Abstract The unique morphologies of the first two cervical vertebrae, the atlas and axis, represent a significant innovation in mammalian evolution. These structures support the weight of the head and enable intricate movements of the head and neck.
Thomas Furtado da Silva Netto, João Felipe Leal Kaiuca, Adriana Itatí Olivares, William Corrêa Tavares   +3 more
wiley   +1 more source

The effect of micro-osteoperforations on the rate of maxillary incisors' retraction in orthodontic space closure: a randomized controlled clinical trial

Progress in Orthodontics
Background This single-centered randomized controlled clinical trial aimed to evaluate the effectiveness of micro-osteoperforations (MOPs) in accelerating the orthodontic retraction of maxillary incisors.
Carolina Morsani Mordente, Dauro Douglas Oliveira, Juan Martin Palomo, Polyana Araújo Cardoso, Marina Araújo Leite Assis, Elton Gonçalves Zenóbio, Bernardo Quiroga Souki, Rodrigo Villamarim Soares   +7 more
doaj   +1 more source