Results 51 to 60 of about 18,697,974 (254)
Finite charges from the bulk action
Journal of High Energy Physics, 2023 Constructing charges in the covariant phase space formalism often leads to formally divergent expressions, even when the fields satisfy physically acceptable fall-off conditions.
Robert McNees, Céline Zwikel
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Breaking conditional symmetry in automated constraint modelling with CONJURE [PDF]
, 2014 This work was supported by UK EPSRC EP/K015745/1. Jefferson is supported by a Royal Society University Research Fellowship.Many constraint problems contain symmetry, which can lead to redundant search.
Gent, Ian +11 more
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FEBS Open Bio, EarlyView.TisIBP8, a fungal‐derived hyperactive ice‐binding protein, helps Caenorhabditis elegans survive dehydration. It localizes near cell membranes, reduces cell damage, and helps maintain membrane structure during drying. These results suggest that ice‐binding proteins can protect cells from dehydration stress as well as freezing stress.
Daiki Shimose +9 more
wiley +1 more source
Irreducible representations of the Poincaré group with reflections and two-fold Wigner degeneracy
Journal of High Energy PhysicsNot all complete set of spinors can be used as expansion coefficients of a quantum field. In fact, Steven Weinberg established the uniqueness of Dirac spinors for this purpose provided: (a) one paid due attention to the multiplicative phases for each of ...
Dharam Vir Ahluwalia +4 more
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FEBS Open Bio, EarlyView.Biophysical characterisation shows that NanX, a membrane transport protein from the major facilitator superfamily (MFS), forms both monomers and dimers after purification. AlphaFold modelling and substrate docking provide information on residues likely involved in substrate recognition for NanX and another MFS member, NanT.
Michael C. Newton‐Vesty +13 more
wiley +1 more source
Neutral signature gauged supergravity solutions
Journal of High Energy Physics, 2021 We classify all supersymmetric solutions of minimal D = 4 gauged supergravity with (2) signature and a positive cosmological constant which admit exactly one Killing spinor.
J. Gutowski, W. A. Sabra
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Space-time symmetries of noncommutative spaces [PDF]
Physical Review D, 2005 7 pages, v2: typos corrected, to appear in Phys.
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Quantum deformation of space-time symmetries and interactions [PDF]
Czechoslovak Journal of Physics, 1997 We discuss quantum deformations of Lie algebra as described by the noncoassociative modification of its coalgebra structure. We consider for simplicity the quantum $D=1$ Galilei algebra with four generators: energy $H$, boost $B$, momentum $P$ and central generator $M$ (mass generator).
Lukierski, Jerzy, Stichel, Peter C.
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Dynamical versus variational symmetries: understanding Noether's first theorem [PDF]
, 2004 It is argued that awareness of the distinction between dynamical and variational symmetries is crucial to understanding the significance of Noether's 1918 work.
Holland, Peter, Brown, Harvey R.
core
Comparative assessment of crystallographic and cryo‐EM models in the Protein Data Bank
FEBS Open Bio, EarlyView.Raw data obtained by X‐ray crystallography or cryo‐EM result in experimental maps, ultimately fitted by atomic models. Although the physical principles are different, the final results can be viewed, compared, and evaluated in the same way. With cryogenic electron microscopy (cryo‐EM) on track to surpass X‐ray crystallography as the preferred method ...
Alexander Wlodawer +7 more
wiley +1 more source