Results 81 to 90 of about 199,024 (258)
Polymorphism and bistability in adherent cells [PDF]
Soft Matter, 9, 5251-5260 (2013), 2012 The optimal shapes attained by contractile cells on adhesive substrates are determined by the interplay between intracellular forces and adhesion with the extracellular matrix. We model the cell as a contractile film bounded by an elastic cortex and connected to the substrate via elastic links.
arxiv +1 more source
First Records of Two Spirostomum Ciliates (Heterotrichea: Heterotrichida: Spirostomidae) from Korea [PDF]
, 2012 Two Spirostomum species collected from freshwater in Korea were identified as S. caudatum (Muller, 1786) and S. teres (Claparede and Lachmann, 1858). They are recorded for the first time in Korea.
Choon Bong Kwon +2 more
core +1 more source
Cytotoxic effects of delfin insecticide (Bacillus thuringiensis) on cell behaviour, phagocytosis, contractile vacuole activity and macronucleus in a protozoan ciliate Paramecium caudatum [PDF]
, 2010 The freshwater protozoan ciliate Paramecium caudatum was used to assess the potential cytotoxic effects and functional activities of biological insecticide delfin.
Amanchi, NR, Hussain, MM
core +2 more sources
Motor-free contractility of active biopolymer networks [PDF]
arXiv, 2022 Contractility in animal cells is often generated by molecular motors such as myosin, which require polar substrates for their function. Motivated by recent experimental evidence of motor-independent contractility, we propose a robust motor-free mechanism that can generate contraction in biopolymer networks without the need for substrate polarity.
arxiv
Geometrical origins of contractility in disordered actomyosin networks [PDF]
Phys. Rev. X 4, 041002 (2014), 2014 Movement within eukaryotic cells largely originates from localized forces exerted by myosin motors on scaffolds of actin filaments. Although individual motors locally exert both contractile and extensile forces, large actomyosin structures at the cellular scale are overwhelmingly contractile, suggesting that the scaffold serves to favor contraction ...
arxiv +1 more source
British Journal of Pharmacology, EarlyView.Abstract Background and Purpose Limb‐girdle muscular dystrophy R2 (LGMD R2) is a rare genetic disorder characterised by progressive weakness and wasting of proximal muscles. LGMD R2 is caused by the loss of function of dysferlin, a transmembrane protein crucial for plasma membrane repair in skeletal muscles.
Celine Bruge +10 more
wiley +1 more source
Subcellular localization of ammonium transporters in
BMC Cell Biology, 2008 Background With the exception of vertebrates, most organisms have plasma membrane associated ammonium transporters which primarily serve to import a source of nitrogen for nutritional purposes.
Davis Carter T +3 more
doaj +1 more source
Expulsion of Injected Solute by Contractile Vacuole of Amoeba.
Experimental Biology and Medicine, 1927 H. Pollack, R. B. Howland
openaire +3 more sources
Review on exact and perturbative deformations of the Einstein-Straus model: uniqueness and rigidity results [PDF]
, 2013 The Einstein-Straus model consists of a Schwarzschild spherical vacuole in a Friedman-Lema\^{\i}tre-Robertson-Walker (FLRW) dust spacetime (with or without \Lambda). It constitutes the most widely accepted model to answer the question of the influence of large scale (cosmological) dynamics on local systems.
arxiv +1 more source
Photochemistry and Photobiology, EarlyView.White light signals lasting less than 30 s induced rapid drop (1 s) of some Mimosa pudica leaves, resulting from osmocontraction of the pulvinar motor cells (A). An early signal detected after about 5 s is a change in motor cell membrane potential, depending on the wavelength applied (B).
Gabriel Roblin +3 more
wiley +1 more source