Results 91 to 100 of about 742 (244)
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
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The 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
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The Anatomical Record, EarlyView.Abstract The ray‐finned fishes include one out of every two species of living vertebrates on Earth and have an abundant fossil record stretching 380 million years into the past. The division of systematic knowledge of ray‐finned fishes between paleontologists working on extinct animals and neontologists studying extant species has obscured the ...
Jack Stack
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The Anatomical Record, EarlyView.Abstract The green iguana (Iguana iguana) is an iguanine lizard with herbivorous and arboreal habits, whose distribution spans through South America, Central America to the south of North America. Although the genus Iguana is well‐known, the species still lacks a comprehensive and up‐to‐date anatomical study, particularly addressing the axial skeleton,
Vieno Rosa +2 more
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The Dynamical Analysis of a Prey-Predator Model with a Refuge-Stage Structure Prey Population
International Journal of Differential Equations, 2016 We proposed and analyzed a mathematical model dealing with two species of prey-predator system. It is assumed that the prey is a stage structure population consisting of two compartments known as immature prey and mature prey.
Raid Kamel Naji, Salam Jasim Majeed
doaj +1 more source
Pitchfork Bifurcation In A Coupled Cell System
Various biological phenomena, like cell differentiation and pattern formation in multicellular organisms, are explained using the bifurcation theory. Molecular network motifs like positive feedback and mutual repressor exhibit bifurcation and are responsible for the emergence of diverse cell types.
Raj, Shikhar, Bose, Biplab
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The Anatomical Record, EarlyView.Abstract The Upper Cretaceous São José do Rio Preto Formation (Bauru Group, southeastern Brazil) has yielded a fragmentary but taxonomically diverse record of titanosaur sauropods, although elements from cervical series remain scarce. Here, we describe a nearly complete sauropod axis from the Vila Ventura Paleontological Area, representing an uncommon ...
Bruno A. Navarro +7 more
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Multilevel analysis of ethnic clustering across local schools: Exploring group dynamics
British Educational Research Journal, EarlyView.Abstract This study examines ethnic clustering patterns across English secondary schools from 2010 to 2018 using National Pupil Database data and multilevel modelling. Despite concerns about increased segregation following educational reforms, findings reveal a general decline in ethnic concentration across all groups during this period.
Yiyang Gao
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British Educational Research Journal, EarlyView.Abstract Over the years, surveys and data on learning outcomes have consistently shown inadequate levels of learning in schools in India, witnessing a further decline in recent years. Studies within the sociology of education have consistently highlighted the overarching role of class and caste on learning outcomes in schools. Neoliberal policy reforms
Akshita Rawat
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Renal Arterial Anatomy: Implications for Normothermic Machine Perfusion in Renal Transplantation
Clinical Anatomy, EarlyView.ABSTRACT Normothermic machine perfusion (NMP) is a novel technology that has shown potential in viability assessment and reconditioning of donor organs. Normothermic machine perfusion is technically more challenging in kidneys with multiple renal arteries (RAs).
Lily Mae Miller +3 more
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