Results 11 to 20 of about 244,141 (219)

Graph Coverings for Investigating Non Local Structures in Proteins, Music and Poems

open access: yesSci, 2021
We explore the structural similarities in three different languages, first in the protein language whose primary letters are the amino acids, second in the musical language whose primary letters are the notes, and third in the poetry language whose ...
Michel Planat   +4 more
doaj   +1 more source

Perspectives on electric dipole moments of atoms and molecules [PDF]

open access: yesEPJ Web of Conferences, 2023
Searches for a permanent electric dipole moment (EDM) of a fundamental particle started with the key idea by Ramsey and Purcell of exploitation of discrete symmetries, such as parity, more than seven decades ago.
Boeschoten Alexander, Willmann Lorenz
doaj   +1 more source

Closing Gaps in Geometrically Frustrated Symmetric Clusters: Local Equivalence between Discrete Curvature and Twist Transformations

open access: yesMathematics, 2018
In geometrically frustrated clusters of polyhedra, gaps between faces can be closed without distorting the polyhedra by the long established method of discrete curvature, which consists of curving the space into a fourth dimension, resulting in a ...
Fang Fang, Richard Clawson, Klee Irwin
doaj   +1 more source

Non-Local Game of Life in 2D Quasicrystals

open access: yesCrystals, 2018
On a two-dimensional quasicrystal, a Penrose tiling, we simulate for the first time a game of life dynamics governed by non-local rules. Quasicrystals have inherently non-local order since any local patch, the emperor, forces the existence of a large ...
Fang Fang   +3 more
doaj   +1 more source

The Self-Simulation Hypothesis Interpretation of Quantum Mechanics

open access: yesEntropy, 2020
We modify the simulation hypothesis to a self-simulation hypothesis, where the physical universe, as a strange loop, is a mental self-simulation that might exist as one of a broad class of possible code theoretic quantum gravity models of reality obeying
Klee Irwin   +2 more
doaj   +1 more source

Methods for Calculating Empires in Quasicrystals

open access: yesCrystals, 2017
This paper reviews the empire problem for quasiperiodic tilings and the existing methods for generating the empires of the vertex configurations in quasicrystals, while introducing a new and more efficient method based on the cut-and-project technique ...
Fang Fang, Dugan Hammock, Klee Irwin
doaj   +1 more source

The Unexpected Fractal Signatures in Fibonacci Chains

open access: yesFractal and Fractional, 2019
In this paper, a new fractal signature possessing the cardioid shape in the Mandelbrot set is presented in the Fourier space of a Fibonacci chain with two lengths, L and S, where L / S = ϕ . The corresponding pointwise dimension is 1.7.
Fang Fang, Raymond Aschheim, Klee Irwin
doaj   +1 more source

Dual little strings from F-theory and flop transitions

open access: yesJournal of High Energy Physics, 2017
A particular two-parameter class of little string theories can be described by M parallel M5-branes probing a transverse affine A N − 1 singularity. We previously discussed the duality between the theories labelled by (N, M) and (M, N).
Stefan Hohenegger   +2 more
doaj   +1 more source

SL(2,C) Scheme Processing of Singularities in Quantum Computing and Genetics

open access: yesAxioms, 2023
Revealing the time structure of physical or biological objects is usually performed thanks to the tools of signal processing such as the fast Fourier transform, Ramanujan sum signal processing, and many other techniques.
Michel Planat   +3 more
doaj   +1 more source

Conserved binding mode but diverse interfaces of MreC‐PBP2 interactions

open access: yesFEBS Letters, EarlyView.
The crystal structure of abMreC reveals a conserved two β‐barrel architecture and provides structural insights into its role within the bacterial elongasome. The abMreC–abPBP2 complex model identifies the molecular basis of MreC‐mediated PBP2 recognition, contributing to the regulation of peptidoglycan synthesis.
Hyunseok Jang   +4 more
wiley   +1 more source

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