Results 121 to 130 of about 124,083 (308)

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

open access: yesThe 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

Sex specific knee joint soft tissue mineralization with fibrillin-1 mutation in male tight skin mice

open access: yesEuropean Cells & Materials
Background: Articular soft tissue mineralization and ossification are clear pathological signs of osteoarthritis (OA) joints. However their molecular and cellular aetiologies remain largely unknown.
C Keenan   +8 more
doaj   +1 more source

Which Institution Should Determine Whether an Agency’s Explanation of a Tax Decision is Adequate?: A Response to Steve Johnson [PDF]

open access: yes, 2014
This Essay responds to Professor Steve Johnson’s Article for the 2014 Duke Law Journal Administrative Law Symposium, Reasoned Explanation and IRS Adjudication.
Pierce, Richard J., Jr
core   +1 more source

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

open access: yesThe 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   +3 more
wiley   +1 more source

Occurrence of the ossification of petrosphenoid ligament: a retrospective radiologic study from computed tomographic images

open access: yesFolia Morphologica
BACKGROUND: Various ligaments present in the skull base are of clinical and surgical importance. One among them, is the petrosphenoid ligament (PSL). PSL may ossify either in a partial or complete form and forms the roof of Dorello’s canal underneath ...
Bhagath Kumar Potu   +3 more
doaj   +1 more source

New craniodental materials of Falcarius utahensis (Theropoda: Therizinosauria) reveal patterns of intraspecific variation and cranial evolution in early coelurosaurians

open access: yesThe Anatomical Record, EarlyView.
Abstract Despite documented ecomorphological shifts toward an herbivorous diet in several coelurosaurian lineages, the evolutionary tempo and mode of these changes remain poorly understood, hampered by sparse cranial materials for early representatives of major clades. This is particularly true for Therizinosauria, with representative crania best known
William J. Freimuth, Lindsay E. Zanno
wiley   +1 more source

Pre- and pro-biotics may improve mineral absorption and retention in the growing male rat : a thesis submitted in partial fulfilment of the requirements for the degree of Master of Science in Nutritional Science at Massey University, Turitea, Palmerston North, New Zealand [PDF]

open access: yes, 2005
Probiotics are bacteria, which reside in the large intestine and concur beneficial health effects on their host. Their abundance can be selectively-stimulated by prebiotics, such as fructo-oligosaccharide (FOS); prebiotics are oligosaccharides, which are
Fear, Alison Lindsay
core  

New techniques for old bones: Morphometric and diffeomorphometric analysis of the bony labyrinth of the Reilingen and Ehringsdorf Neandertals

open access: yesThe Anatomical Record, EarlyView.
Abstract Neandertals are known to possess very distinctive traits in their bony labyrinth morphology, such as an inferiorly positioned posterior canal and a very low number of turns in the cochlea. Hence, the inner ear has been often used to assess the Neandertal status of fragmentary fossils.
Alessandro Urciuoli   +6 more
wiley   +1 more source

Evaluating sternum development and ossification through computed tomography images: a comparative analysis across age and sex

open access: yesFolia Morphologica
BACKGROUND: The development of the sternum begins during the intrauterine life and continues until the age of 25. However, specific information on the ages at which sternum development is complete remains limited.
Mensure Sahin   +4 more
doaj   +1 more source

The coelurosaur theropods of the Romualdo formation, early Cretaceous (Aptian) of Brazil: Santanaraptor placidus meets Mirischia asymmetrica

open access: yesThe Anatomical Record, EarlyView.
Abstract The upper carbonate concretion levels of the Romualdo Formation (Aptian, Brazil) have yielded several theropod dinosaur remains, including spinosaurids and the coelurosaurs Santanaraptor placidus and Mirischia asymmetrica, the phylogenetic affinities of which are controversial.
Rafael Delcourt   +4 more
wiley   +1 more source

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