Results 51 to 60 of about 219,185 (273)
(2, 2) Scattering and the celestial torus
Journal of High Energy Physics, 2021 Analytic continuation from Minkowski space to (2, 2) split signature spacetime has proven to be a powerful tool for the study of scattering amplitudes. Here we show that, under this continuation, null infinity becomes the product of a null interval with ...
Alexander Atanasov +4 more
doaj +1 more source
The newfound relationship between extrachromosomal DNAs and excised signal circles
FEBS Letters, EarlyView.Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley +1 more source
On free Lie algebras and particles in electro-magnetic fields
Journal of High Energy Physics, 2017 The Poincaré algebra can be extended (non-centrally) to the Maxwell algebra and beyond. These extensions are relevant for describing particle dynamics in electromagnetic backgrounds and possibly including the backreaction due the presence of multipoles ...
Joaquim Gomis, Axel Kleinschmidt
doaj +1 more source
New Superstring Isometries and Hidden Dimensions
, 2007 We explore the hierarchy of hidden space-time symmetries of noncritical strings in RNS formalism, realized nonlinearly. Under these symmetry transformations the variation of the matter part of the RNS action is cancelled by that of the ghost part.
Polyakov, Dimitri
core +2 more sources
Space-Time Symmetry and Space-Time Ontology
Journal for History of Mathematics, 2015 In spite of various attempts to characterize the ontological status of space-time, Newtonian substantivalism and Leibnizian relationism, what is really at issue in the controversy between the two parties is by no means clear. This essay argues that from the perspective of space-time symmetries, classical space-time can be unambiguously classified as ...
openaire +2 more sources
Space-time symmetries of noncommutative spaces [PDF]
Physical Review D, 2005 7 pages, v2: typos corrected, to appear in Phys.
openaire +2 more sources
Peroxidasin enables melanoma immune escape by inhibiting natural killer cell cytotoxicity
Molecular Oncology, EarlyView.Peroxidasin (PXDN) is secreted by melanoma cells and binds the NK cell receptor NKG2D, thereby suppressing NK cell activation and cytotoxicity. PXDN depletion restores NKG2D signaling and enables effective NK cell–mediated melanoma killing. These findings identify PXDN as a previously unrecognized immune evasion factor and a potential target to improve
Hsu‐Min Sung +17 more
wiley +1 more source
Planons and their Carroll-Galilei symmetries
Journal of High Energy PhysicsWe study the dynamics of planons, particles whose mobility is restricted to a plane, through the classification of coadjoint orbits and unitary irreducible representations of the centrally extended planon group.
José Figueroa-O’Farrill +3 more
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Space-time Schrödinger symmetries of a post-Galilean particle
Journal of High Energy Physics, 2020 We study the space-time symmetries of the actions obtained by expanding the action for a massive free relativistic particle around the Galilean action [1]. We obtain all the point space-time symmetries of the post-Galilean actions by working in canonical
Carles Batlle, Joaquim Gomis
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Large diffeomorphisms and accidental symmetry of the extremal horizon
Journal of High Energy Physics, 2022 We uncover a symmetry of the linear Einstein equations near extremal horizons. Specifically, acting with a spherically symmetric linearized diffeomorphism on the perturbative solutions to the Einstein-Maxwell equations in the Bertotti-Robinson background,
Achilleas P. Porfyriadis +1 more
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