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Types of convergent extension.

, 2016
In active convergent-extension, the cells in the tissue generate deforming forces due to anisotropic adhesion or pulling forces between cells (red arrows), while in passive convergent-extension, the surrounding environment deforms the tissue (blue arrows)
Maciej H. Swat (175449), James A. Glazier (53981), Julio M. Belmonte (204008)   +2 more
core   +1 more source

A GAP in Convergent Extension Scores PAR [PDF]

Developmental Cell, 2006
The process of "convergence and extension" regulates cellular intercalation during gastrulation. An ArfGAP-PAR protein complex is required for the associated cellular polarization. Potential interactions between this complex and relevant planar cell polarity factors in this context are discussed.
openaire   +2 more sources

Fibronectin contributes to notochord intercalation in the invertebrate chordate, Ciona intestinalis

EvoDevo, 2016
Background Genomic analysis has upended chordate phylogeny, placing the tunicates as the sister group to the vertebrates. This taxonomic rearrangement raises questions about the emergence of a tunicate/vertebrate ancestor.
Fernando Segade, Christina Cota, Amber Famiglietti, Anna Cha, Brad Davidson   +4 more
doaj   +1 more source

Multiphase boudinage: a case study of amphibolites in marble in the Naxos migmatite core [PDF]

Solid Earth, 2018
In multiply deformed terrains multiphase boudinage is common, but identification and analysis of these is difficult. Here we present an analysis of multiphase boudinage and fold structures in deformed amphibolite layers in marble from the migmatitic ...
S. Virgo, C. von Hagke, J. L. Urai
doaj   +1 more source

Virginia Cooperative Extension District Map

, 2021
Virginia Cooperative Extension District ...
Barlow, Zeke
core  

Computing knowledge in equational extensions of subterm convergent theories [PDF]

Mathematical Structures in Computer Science, 2020
AbstractWe study decision procedures for two knowledge problems critical to the verification of security protocols, namely the intruder deduction and the static equivalence problems. These problems can be related to particular forms of context matching and context unification. Both problems are defined with respect to an equational theory and are known
Serdar Erbatur, Andrew M. Marshall, Christophe Ringeissen   +2 more
openaire   +3 more sources

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

FEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure, Misaki K. Nishio, Satoru Okuda, Kohji Hotta   +3 more
wiley   +1 more source

Mechanisms of convergence and extension by cell intercalation

Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences, 2000
The cells of many embryonic tissues actively narrow in one dimension (convergence) and lengthen in the perpendicular dimension (extension). Convergence and extension are ubiquitous and important tissue movements in metazoan morphogenesis. In vertebrates, the dorsal axial and paraxial mesodermal tissues, the notochordal and somitic mesoderm, converge ...
R, Keller, L, Davidson, A, Edlund, T, Elul, M, Ezin, D, Shook, P, Skoglund   +6 more
openaire   +3 more sources

Calcium signaling during convergent extension in Xenopus [PDF]

Current Biology, 2001
During Xenopus gastrulation, cell intercalation drives convergent extension of dorsal tissues. This process requires the coordination of motility throughout a large population of cells. The signaling mechanisms that regulate these movements in space and time remain poorly understood.To investigate the potential contribution of calcium signaling to the ...
Wallingford, John B., Ewald, Andrew J., Harland, Richard M., Fraser, Scott E.   +3 more
openaire   +3 more sources

The human gut microbiome across the life course

FEBS Letters, EarlyView.
Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero, Basak Bahcivanci, Antonietta Hayhoe, Animesh Acharjee, Ezgi Özkurt   +4 more
wiley   +1 more source