Results 61 to 70 of about 24,592 (270)

Evolutionary radiation of large‐bodied gorgonopsians from the lower Abrahamskraal formation of South Africa

open access: yesThe Anatomical Record, EarlyView.
Abstract The middle Permian represents a critical interval in therapsid evolution, when gorgonopsians emerged as some of the first specialized apex predators within terrestrial ecosystems. Despite their significance, the early diversification of Gorgonopsia in Gondwana remains poorly understood due to scarcity and fragmentary material.
Zanildo Macungo   +5 more
wiley   +1 more source

Analysis of morphological and anthropometric variations of clivus using cone beam computed tomography in adults

open access: yesCaspian journal of dental research, 2021
Introduction: Clivus forms the middle part of the skull base, and different anatomical and pathologies variations can be created in this structure. The aim of this study was to determine the morphological variations and anthropometric analysis of clivus ...
Maryam Abdolmaleki   +2 more
doaj  

Management of a Complex Basilar Invagination Case with Multiple Revision Surgeries – Case Report

open access: yesBrazilian Neurosurgery, 2016
We describe a Basilar Invagination (BI) case with craniocervical instability and many previous failure surgeries and poor wound coverage. The patient had been submitted to a large posterior fossa craniectomy (which greatly limited the availability of an ...
Carlos Eduardo Vasconcelos Miranda   +4 more
doaj   +1 more source

suzannelab/invagination: Publication release

open access: yes, 2019
Modeling mesoderm invagination in the Drosophila embryo with ...
Sophie THEIS, Guillaume Gay
core   +1 more source

Early stages of tooth development in the harbor porpoise Phocoena phocoena

open access: yesThe Anatomical Record, EarlyView.
Abstract Here we describe the stages of tooth development in toothed whales on the basis of the harbor porpoise (Phocoena phocoena). The aim of the study was to find out whether these stages are identical to those of other mammals analyzed so far although toothed whales are homodont and monophyodont.
Lasse M. Mathes   +2 more
wiley   +1 more source

Male reproductive system in stenopodidean shrimps: Unveiling basal reproductive traits in shrimp‐like Pleocyemata (Stenopodidae and Spongicolidae)

open access: yesThe Anatomical Record, EarlyView.
Abstract Stenopodidea represents one of the basal lineages within Pleocyemata, yet the male reproductive system (MRS) of this group remains poorly understood, with limited information available regarding its morphology and function. This study provides the first detailed description of the MRS in four stenopodidean shrimp species from two families ...
Caio Santos Nogueira   +2 more
wiley   +1 more source

Integrated microanatomy and microstructure of the maxillary tooth plate reveal a reinforced feeding system and tougher diet in Late Triassic Hyperodapedontinae (Rhynchosauria, Archosauromorpha)

open access: yesThe Anatomical Record, EarlyView.
Abstract Hyperodapedontine rhynchosaurs possessed a unique oral apparatus, long interpreted as an adaptation for processing abrasive and resistant plant material. However, the microanatomical and histological evidence supporting this interpretation remains poorly documented.
Caio A. Scartezini   +3 more
wiley   +1 more source

Cranio-vertebral transition assessment by magnetic resonance imaging in a sample of a northeast Brazilian population

open access: yesArquivos de Neuro-Psiquiatria
Platybasia and basilar invagination are important alterations of the cranial-vertebral transition. Neuroimaging-based platybasia parameters include the Welcker basal angle, distance between the apex of the odontoid and Chamberlain’s line, and the clivus ...
Heitor Cabral Frade   +5 more
doaj   +1 more source

The mycelium of student experiences: Capturing the relational network of transitions as becoming

open access: yesBritish Educational Research Journal, EarlyView.
Abstract While university student transitions are often framed as processes of becoming, this perspective does not fully capture the multifaceted nature of student transitions. Even approaches that acknowledge the heterogeneity of student experiences and adopt a rhizomatic perspective tend to imply individual autonomy rather than reflect the hyper ...
Sotiris T. Lalaounis   +2 more
wiley   +1 more source

Application of a novel sliding ⁃ traction head holder in craniovertebral junction abnormalities surgery

open access: yesChinese Journal of Contemporary Neurology and Neurosurgery
Objective In this study, a novel sliding ‐ traction head holder was independently developed, and its application efficacy in surgeries for craniovertebral junction abnormalities was evaluated. Methods A retrospective analysis was performed on 20 patients
WU Kun, ZHANG Fan, FAN Tao
doaj   +1 more source

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