Results 51 to 60 of about 70,277 (313)
Symmetries of Symmetry Breaking Constraints
, 2010 Symmetry is an important feature of many constraint programs. We show that any problem symmetry acting on a set of symmetry breaking constraints can be used to break symmetry. Different symmetries pick out different solutions in each symmetry class. This simple but powerful idea can be used in a number of different ways.
George Katsirelos, Toby Walsh
openaire +3 more sources
Forced symmetry breaking perturbations for periodic solutions [PDF]
, 1996 Using the formalism defined by R. Lauterbach and M. Roberts [21], we develop a geometric approach for the problem of forced symmetry breaking for periodic orbits in G-equivariant systems of ODE's.
Guyard, Frédéric, Lauterbach, Reiner
core +1 more source
Time-reversal symmetry breaking in the noncentrosymmetric Zr3Ir superconductor [PDF]
, 2020 We report the discovery of Zr3Ir as a structurally different type of unconventional noncentrosymmetric superconductor (with Tc=2.3 K), here investigated mostly via muon-spin rotation/relaxation (μSR) techniques.
Shi, M. +10 more
core +1 more source
Breaking symmetry in myxobacteria [PDF]
Current Biology, 2004 O.A.I. was supported by a Howard Hughes predoctoral fellowship. G.O. was supported by National Science Foundation grant DMS-9972826 and National Institutes of Health grant GM59875-02. D.K. was supported by National Institutes of Health Grant GM23441.
Igoshin, Oleg A +2 more
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pH‐mediated activation of the lysosomal arginine sensor SLC38A9
FEBS Letters, EarlyView.Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley +1 more source
Bootstrap Dynamical Symmetry Breaking
Advances in High Energy Physics, 2013 Despite the emergence of a 125 GeV Higgs-like particle at the LHC, we explore the possibility of dynamical electroweak symmetry breaking by strong Yukawa coupling of very heavy new chiral quarks
Wei-Shu Hou
doaj +1 more source
ON THE SYMMETRY BREAKING PHENOMENON [PDF]
International Journal of Geometric Methods in Modern Physics, 2006 We investigate the problem of symmetry breaking in the framework of dynamical systems with symmetry on a smooth manifold. Two cases will be analyzed: general and Hamiltonian dynamical systems. We give sufficient conditions for symmetry breaking in both cases.
BIRTEA, PETRE +3 more
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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 +3 more
wiley +1 more source
Gauge invariant accounts of the Higgs mechanism [PDF]
, 2011 The Higgs mechanism gives mass to Yang-Mills gauge bosons. According to the conventional wisdom, this happens through the spontaneous breaking of gauge symmetry.
Ward Struyve, Struyve, Ward
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Boundary Symmetry Breaking in CFT and the string order parameter
Journal of High Energy Physics, 2023 We consider the ground state of a one-dimensional critical quantum system carrying a global symmetry in the bulk, which is explicitly broken by its boundary conditions. We probe the system via a string-order parameter, showing how it detects the symmetry
Riccarda Bonsignori +2 more
doaj +1 more source