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#extra

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Rxiv mechanobio

📰 "Orientational ordering in active nematic solids"
arxiv.org/abs/2504.07354 #Extra-Cellular #Physics.Bio-Ph #Cond-Mat.Soft #Mechanical

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arXiv.orgOrientational ordering in active nematic solidsIn vivo and in vitro systems of cells and extra-cellular matrix (ECM) systems are well known to form ordered patterns of orientationally aligned fibers. Here, we interpret them as active analogs of the (disordered) isotropic to the (ordered) nematic phase transition seen in passive liquid crystalline elastomers. A minimal theoretical framework that couples cellular activity (embodied as mechanical stress) and the finite deformation elasticity of liquid crystal elastomers sets the stage to explain these patterns. Linear stability analysis of the governing equations about simple homogeneous isotropic base states shows how the onset of periodic morphologies depends on the activity, elasticity, and applied strain, provides an expression for the wavelength of the instability, and is qualitatively consistent with observations of cell-ECM experiments. Finite element simulations of the nonlinear problem corroborate the results of linear analysis. These results provide quantitative insights into the onset and evolution of nematic order in cell-matrix composites.
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RTL Nieuws

𝗔𝗕𝗕𝗔 𝘃𝗼𝗲𝗴𝘁 '𝗶𝗲𝘁𝘀 𝗲𝘅𝘁𝗿𝗮'𝘀' 𝘁𝗼𝗲 𝗮𝗮𝗻 𝘀𝗵𝗼𝘄 𝗶𝗻 𝗟𝗼𝗻𝗱𝗲𝗻

Voor het eerst sinds de start van ABBA Voyage in Londen in 2022 wordt de veelbesproken show aangepast. De vier leden van de Zweedse band kondigen donderdag aan dat er "iets extra's" komt.

rtl.nl/boulevard/artikel/55014

RTL Boulevard · ABBA voegt 'iets extra's' toe aan show in LondenVoor het eerst sinds de start van ABBA Voyage in Londen in 2022 wordt de veelbesproken show aangepast. De vier leden van de Zweedse band kondigen donderdag aan dat er "iets extra's" komt.
#ABBA#extra#show
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