Results 61 to 70 of about 11,795 (218)

Evaluation of Struthio camelus eggshell as an in vitro alternative to extracted human teeth in preliminary screening studies on dental erosion

open access: yesClinical and Experimental Dental Research, 2023
Objectives This in vitro work investigates the potential of ostrich eggshell as a substitute for extracted human teeth in preliminary screening studies on dental erosion.
Abubaker Qutieshat   +2 more
doaj   +1 more source

Computed tomography reveals multiple origins of extreme caudal vertebral pneumaticity in sauropod dinosaurs

open access: yesJournal of Anatomy, EarlyView.
Here, we present novel CT scan data of caudal vertebrae of six Middle–Late Jurassic sauropods, representing several eusauropod lineages. We synthesise these new data with a comprehensive critical appraisal of purported external and internal evidence for caudal vertebral PSP in Sauropodomorpha.
Samantha L. Beeston   +5 more
wiley   +1 more source

Influences of dietary crude protein and stocking density on growth performance and body measurements of ostrich chicks

open access: yesAnais da Academia Brasileira de Ciências, 2019
: Thirty-six African Black ostrich chicks were used to investigate the effects of dietary crude protein (CP) levels (180, 210 and 240 g/kg), stocking density (4.5 and 3 m2/bird) and their interactions.
KHALID M. MAHROSE   +2 more
doaj   +1 more source

Design and Analysis of the Bionic Mechanical Foot with High Trafficability on Sand

open access: yesApplied Bionics and Biomechanics, 2020
The ostrich foot has excellent travelling performance on sand and plays a vital role in efficient locomotion. The tendon-bone assembly characteristics of an ostrich foot were studied by gross anatomy, and the 3D model of ostrich foot was reconstructed ...
Rui Zhang   +5 more
doaj   +1 more source

Analysis of immunoglobulin transcripts in the ostrich Struthio camelus, a primitive avian species. [PDF]

open access: yesPLoS ONE, 2012
Previous studies on the immunoglobulin (Ig) genes in avian species are limited (mainly to galliformes and anseriformes) but have revealed several interesting features, including the absence of the IgD and Igκ encoding genes, inversion of the IgA encoding
Tian Huang   +12 more
doaj   +1 more source

Vocabulary Opens the Door; Creativity Guides the Search: Complementary Contributions to Second Language Semantic Fluency Across Domains

open access: yesLanguage Learning, EarlyView.
Abstract Semantic fluency, the ability to retrieve words within a category, relies on lexical knowledge, semantic memory and executive control mechanisms. A richer, interconnected semantic memory and optimal executive control, as seen in creative individuals, enhance fluency through broad associative searches and quicker access to remote concepts ...
Almudena Fernández‐Fontecha
wiley   +1 more source

Processing Fluency and Predictive Processing: How the Predictive Mind Becomes Aware of its Cognitive Limitations

open access: yesTopics in Cognitive Science, EarlyView.
Abstract Predictive processing is an influential theoretical framework for understanding human and animal cognition. In the context of predictive processing, learning is often reduced to optimizing the parameters of a generative model with a predefined structure. This is known as Bayesian parameter learning.
Philippe Servajean, Wanja Wiese
wiley   +1 more source

Teaching Through Making: |xam and !xun Material Culture of the Bleek and Lloyd Collection

open access: yesMuseum Anthropology, Volume 50, Issue 1, Spring 2027.
ABSTRACT At Wits Art Museum (University of the Witwatersrand, Johannesburg, South Africa) is a small collection donated to the former Wits Museum of Ethnology by Percival Kirby in 1952. A note in the accession register ties the items into the context of the renowned ‘Bushman researches’ of Wilhelm Bleek and Lucy Lloyd in Cape Town in the 1870s and ...
Vibeke M. Viestad, Justine Wintjes
wiley   +1 more source

Osteohistology of two phorusrhacids reveals uninterrupted growth strategy

open access: yesThe Anatomical Record, Volume 309, Issue 11, Page 3106-3122, November 2026.
Abstract Phorusrhacidae were apex predators that primarily dominated South America ecosystems for at least 40 million years with their imposing size and predatory lifestyle—yet some aspects of their biology remain poorly understood. Osteohistology is a tool for understanding growth dynamics and biomechanical adaptations.
Lotta Dreyer   +2 more
wiley   +1 more source

An Ostrich Family at the Ostrich Farm, Jacksonville, Florida

open access: yes, 2021
An Ostrich family gather at the Ostrich farm, Jacksonville, Florida. Published by the H & W. B Drew Co.

core   +1 more source

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