Results 61 to 70 of about 219,185 (273)

Self-consistent symmetries in the proton-neutron Hartree-Fock-Bogoliubov approach [PDF]

open access: yes, 2009
Symmetry properties of densities and mean fields appearing in the nuclear Density Functional Theory with pairing are studied. We consider energy functionals that depend only on local densities and their derivatives.
C. Truesdall   +15 more
core   +1 more source

Space-time BRST symmetries

open access: yes, 2004
Bearing in mind BV quantization of gauge gravitation theory, we extend general covariant transformations to the BRST ones.
Bashkirov, D., Sardanashvily, G.
openaire   +2 more sources

Space–time symmetry of noncommutative field theory [PDF]

open access: yesPhysics Letters B, 2005
7 pages, no figures, final version, accepted for publication in Phys.
Gonera, Cezary   +3 more
openaire   +2 more sources

Hands‐on protocol for preparing water‐soluble fractions from agri‐food samples for NMR‐based metabolomics analysis

open access: yesFEBS Open Bio, EarlyView.
This research protocol outlines a workflow for nuclear magnetic resonance (NMR)‐based metabolomics in the agri‐food sector. Using two case studies—strawberry leaves (solid matrix) and wine (liquid matrix)—it details the procedures for sample preparation, data acquisition, and processing.
Andrea Fernández‐Veloso   +4 more
wiley   +1 more source

Generalized unitary evolution for symplectic scalar fermions

open access: yesJournal of High Energy Physics
The theory of symplectic scalar fermion of LeClair and Neubert is studied. The theory evades the conventional spin-statistics theorem because its Hamiltonian is pseudo Hermitian. The definition of pseudo Hermiticity is examined in the interacting and the
Cheng-Yang Lee
doaj   +1 more source

Field theories with homogenous momentum space

open access: yes, 2009
We discuss the construction of a scalar field theory with momentum space given by a coset. By introducing a generalized Fourier transform, we show how the dual scalar field theory actually lives in Snyder's space-time.
Etera Livine   +4 more
core   +2 more sources

Symmetries of spacetime [PDF]

open access: yesInternational Journal of Modern Physics D, 2016
The equations of Hamiltonian gravity are often considered ugly cousins of the elegant and manifestly covariant versions found in the Lagrangian theory. However, both formulations are fundamental in their own rights because they make different statements about the nature of spacetime and its symmetries.
openaire   +2 more sources

Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications

open access: yesFEBS Open Bio, EarlyView.
This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley   +1 more source

Phonon-induced Floquet topological phases protected by space-time symmetries

open access: yesPhysical Review Research, 2020
For systems with spatial and nonspatial symmetries, the topological classification depends not only on these symmetries but also on the commutation/anticommutation relations between spatial and nonspatial symmetries.
Swati Chaudhary   +3 more
doaj   +1 more source

Carrollian Yang-Mills theory

open access: yesJournal of High Energy Physics, 2023
By doing a small c (speed of light) expansion of SU(N) Yang-Mills fields, we construct two different electric and two different magnetic sectors actions of Carrollian Yang-Mills theory.
Minhajul Islam
doaj   +1 more source

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