Results 11 to 20 of about 38,595 (241)
Effects of periodic mechanical stress on cytoskeleton dependent lipid raft-induced integrin ɑ1 activation in rat nucleus pulposus cells. [PDF]
J Mol Histol, 2023 Gao G +9 more
europepmc +2 more sources
European Journal of Cell Biology, 2010 The signal transduction pathways of chondrocyte area expansion and migration under periodic mechanical stress remain a matter of debate. We explore this question by performing cell culture experiments in our self-developed periodic stress field and perfusion culture system.
Weimin Fan, Kewei Ren
exaly +3 more sources
Impact of Geometry on the Thermal and Mechanical Properties of Periodic Surface Structures: A Numerical Study [PDF]
MATEC Web of Conferences, 2022 Periodic Surface Structures (PSS) fabricated via Additive Manufacturing (AM) have recently emerged as being appropriate candidates for high-value engineered structures.
Gawrońska Elżbieta, Dyja Robert
doaj +1 more source
Journal of Neuroendocrinology, 2023 Abstract Corticotrophs are intermediaries in the hypothalamic–pituitary–adrenal (HPA) axis, which plays a crucial role in stress response in vertebrates. The HPA axis displays an intricate mode of negative feedback regulation, whereby the peripheral effector, cortisol inhibits the secretion of its upstream regulator ...
Guy Peles +2 more
openaire +2 more sources
Influence of Uniaxial Tensile Stress on the Mechanical and Piezoelectric Properties of Short-period Ferroelectric Superlattice [PDF]
Nanoscale Research Letters, 2009 Tetragonal ferroelectric/ferroelectric BaTiO3/PbTiO3 superlattice under uniaxial tensile stress along the c axis is investigated from first principles. We show that the calculated ideal tensile strength is 6.85 GPa and that the superlattice under the loading of uniaxial tensile stress becomes soft along the nonpolar axes.
Wang Chunmei +3 more
openaire +4 more sources
Theoretical model of homogenized piezoelectric materials with small non-collinear periodic cracks [PDF]
Fracture and Structural Integrity, 2017 An analytical model for the homogenization of a piezoelectric material with small periodic fissures is proposed on the basis of the method of asymptotic expansions for the elastic displacement, the electric scalar potential and the test functions ...
Jean-Marie Nianga, Driss Marhabi
doaj +2 more sources
Effect of Curing Stress and Period on the Mechanical Properties of Cement-Mixed Sand
Soils and Foundations, 2011 ABSTRACT Cement mixing is one of the popular ground improvement technologies in geotechnical engineering practice. In order to effectively and confidently design cement-mixed soil structures for specific purposes, its stress-strain behavior needs to be well understood. Though there have been many studies on cement-mixed soils using different types of
RABBI, ABU TAHER MD ZILLUR +3 more
openaire +2 more sources
Cellular Physiology and Biochemistry, 2016 Background/Aims: The present study aimed to analyze the mechanisms by which periodic mechanical stress is translated into biochemical signals, and to verify the important role of signaling molecules including phosphatidylinositol-3-kinase (PI3K)-Akt ...
Peng He +8 more
doaj +1 more source
Assur graphs, marginally jammed packings, and reconfigurable metamaterials
Physical Review Research, 2023 Isostatic frames are mechanical networks that are simultaneously rigid and stress-free. Isostaticity itself is a powerful concept in understanding phase transitions in soft matter and designing mechanical metamaterials.
Jose Ortiz-Tavarez +2 more
doaj +1 more source
Cellular Physiology and Biochemistry, 2018 Background/Aims: Periodic mechanical stress has been shown to promote extracellular matrix (ECM) synthesis and cell migration of nucleus pulposus (NP) cells, however, the mechanisms need to be fully elucidated.
Gongming Gao +8 more
doaj +1 more source