Results 101 to 110 of about 3,615 (267)
The Anatomical Record, EarlyView.Abstract The vertebrate skull is composed of bones derived from neural crest cells and mesoderm. The evolutionary capacity of the skull has been linked, in part, to the emergence of neural crest cells; however, this increased capacity for evolutionary change requires that variation within neural crest‐ and mesoderm‐derived bones remains partly ...
Alyssa C. Moore +5 more
wiley +1 more source
The Symmetry Concept of the Basic Education Teachers
JETEN, 2016 The curricular changes that have occurred with the Mathematics syllabus of 2007 and 2013 showed, among other situations, the introduction of new contents and the conceptual change of symmetry. For the teachers, these changes require scientific updates to
Angela Couto, Cláudia Maia-Lima
doaj
Rethinking brachycephaly: Anatomical implications and health considerations in lagomorphs
The Anatomical Record, EarlyView.Abstract Brachycephaly in domestic rabbits is increasingly perceived by welfare organizations as associated with significant health complications, particularly oral pathologies. Despite this perception, comparative anatomical research into rabbit brachycephaly is limited compared to that of dogs and cats, compelling an in‐depth examination of its ...
Helaina Cressy +3 more
wiley +1 more source
On Extensions of Partial Isometries
In this paper we define a notion of S-extension for a metric space and study minimality and coherence of S-extensions. We show that every S-extension can be identified with an algebraic object. We use this algebraic representation to give a complete characterization of all finite minimal S-extensions of a given finite metric space and a complete ...
Mahmood Etedadialiabadi, Su Gao
openaire +2 more sources
Journal of Algebra, 2000 Let \(G\) be a finite simple group, \(p\) a prime and \(P\) a Sylow \(p\)-subgroup of \(G\). Suppose that there exists a perfect isometry \(I\) between the principal \(p\)-blocks \(B\) of \(G\) and \(b\) of \(H=N_G(P)\). Moreover, suppose that \(H/O_{p'}(H)\) is a Frobenius group with kernel \(PO_{p'}(H)/O_{p'}(H)\), denote by \(\mu_1,\dots,\mu_e\) the
openaire +2 more sources
The Anatomical Record, EarlyView.Abstract The human mandibular symphysis concentrates multiaxial loads during function and remodels throughout growth, but the precise mechanisms underlying cortical bone shape during growth remain relatively unexplored. Approaches based solely on thickness or external cortical contours provide only partial insights and do not capture the functional ...
Ana Ribeiro +3 more
wiley +1 more source
On similarity of operators to isometries.
Michigan Mathematical Journal, 1992 Isometric and unitary operators being central to the theory of linear operators on Hilbert space, the problem of determining whether a given operator is similar to one of these assumes a natural importance and has been examined by various researchers since 1947, when Sz.-Nagy announced necessary and sufficient conditions for similarity to an isometry ...
openaire +3 more sources
The Anatomical Record, EarlyView.Abstract Neuroanatomical research has progressed considerably in several vertebrate lineages, yet studies of reptilian brain morphology remain markedly underdeveloped. Here we provide the first description of macroscopic brain anatomy and its ontogeny in the viperid Bothrops moojeni, based on a sample of seven individuals.
Paula Araújo +2 more
wiley +1 more source
Clade‐wide morphological and functional variation of the sauropsid columella
The Anatomical Record, EarlyView.Abstract The columella (=stapes) is the middle ear bone of reptiles that transmits vibrations from the environment to the inner ear. It has been shown to exhibit extensive interspecific morphological disparity in several clades; however, its morphological variation and associated functional consequences remain poorly described.
John Peacock +4 more
wiley +1 more source
The Anatomical Record, EarlyView.Abstract Triassic pseudosuchians had highly diversified cranial morphologies. These archosaurs occupied diverse ecological roles, ranging from terrestrial predators and herbivores to semiaquatic ambush predators and possible waders. Here, we apply linear cranial morphometrics to assess possible convergences with other sauropsids from the clades ...
Rafael Terras +3 more
wiley +1 more source