Results 51 to 60 of about 673,928 (292)

u-Deformed WZW Model and Its Gauging [PDF]

open access: yes, 2006
We review the description of a particular deformation of the WZW model. The resulting theory exhibits a Poisson-Lie symmetry with a non-Abelian cosymmetry group and can be vectorially gauged.Comment: This is a contribution to the Proc.
Klimcik, Ctirad
core   +5 more sources

Analysing the significance of small conformational changes and low occupancy states in serial crystallographic data

open access: yesFEBS Open Bio, EarlyView.
This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill   +4 more
wiley   +1 more source

Symmetry notion as a universal principle of design [PDF]

open access: yesArhitektura i Urbanizam, 2008
Symmetry is a word that appears in a variety of disciplines over a variety of ages, carries many meanings and has always been in direct relation to the most important notions which explain architectural creativity.
Jadrešin-Milić Renata
doaj  

Bis(1-adamantylammonium) tetrachloridocobaltate(II)

open access: yesActa Crystallographica Section E, 2008
The CoII atom in the title salt, (C10H18N)2[CoCl4], exists in a tetrahedral coordination geometry. The asymmetric unit has two cations that lie on different special positions of site symmetry m; the anion lies on another special position of site symmetry
Seik Weng Ng   +3 more
doaj   +1 more source

Electroweak Interaction Model with an Undegenerate Double Symmetry [PDF]

open access: yes, 2005
The initial $P$-invariance of the electroweak interaction Lagrangian together with the low-energy results of the Weinberg-Salam model is provided by a local secondary symmetry.
Slad, Leonid M.
core   +4 more sources

Symmetries in Riemann-Cartan Geometries

open access: yesSymmetry, Integrability and Geometry: Methods and Applications
Riemann-Cartan geometries are geometries that admit non-zero curvature and torsion tensors. These geometries have been investigated as geometric frameworks for potential theories in physics including quantum gravity theories and have many important differences when compared to Riemannian geometries.
McNutt, David D.   +2 more
openaire   +2 more sources

Application of Raman and Photoluminescence Spectroscopy to MgO‐C Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
Visible to near infrared luminescence of MgO is studied on MgO‐C bricks and nominally pure MgO powder, with focus on two similar sharp high‐intensity signals, at 699 and 871 nm, each surrounded by symmetrical sidebands. The nature of these sidebands is investigated by temperature‐dependent spectroscopic measurements, confirming phonon involvement by ...
Julia Richter   +5 more
wiley   +1 more source

Quantum gravity from Weyl conformal geometry

open access: yesEuropean Physical Journal C: Particles and Fields
We review recent developments in physical implications of Weyl conformal geometry. The associated Weyl quadratic gravity action is a gauge theory of the Weyl group of dilatations and Poincaré symmetry.
D. M. Ghilencea
doaj   +1 more source

Hexakis(dimethyl sulfoxide-κO)cobalt(III) trinitrate

open access: yesActa Crystallographica Section E, 2010
The metal atom of the title salt, [Co(C2H6OS)6](NO3)3, is coordinated by six dimethyl sulfoxide molecules in an octahedral geometry. The metal atom lies on a special position of overline{3} site symmetry.
Qiuhong Li, Seik Weng Ng
doaj   +1 more source

Pseudo-Riemannian structures in Pati-Salam models

open access: yesJournal of High Energy Physics, 2020
We discuss the role of the pseudo-Riemannian structure of the finite spectral triple for the family of Pati-Salam models. We argue that its existence is a very restrictive condition that separates leptons from quarks, and restricts the whole family of ...
A. Bochniak, T.E. Williams, P. Zalecki
doaj   +1 more source

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