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Symmetry, Volume 15, Issue 2

February 2023 - 311 articles

Cover Story: The anisotropy of physical phenomena is indissociable from the symmetry of the considered system or the absence thereof. This interdependence is central to magnetism, where the pseudovector character of the spin and orbital magnetic moments renders geometry arguments particularly appealing. Theoretical investigations demonstrate how adatoms can be used to trigger and control the chirality of the magnetic interactions in small transition-metal alloy clusters. Quantitative relations between symmetry breaking, local atomic environment, and chiral couplings are revealed by performing quantum-mechanical calculations of the electronic energy of the alloy clusters and by carrying out a local analysis of the results for different magnetic textures, including their respective mirror images. View this paper
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Articles (311)

  • Feature Paper
  • Article
  • Open Access
4 Citations
2,152 Views
13 Pages

Post-Inflationary Production of Dark Matter after Inflection Point Slow Roll Inflation

  • Anish Ghoshal,
  • Gaetano Lambiase,
  • Supratik Pal,
  • Arnab Paul and
  • Shiladitya Porey

17 February 2023

We explore a feasible model that combines near-inflection point small-field slow roll inflationary scenario driven by single scalar inflaton with the production of non-thermal vector-like fermionic dark matter, χ, during the reheating era. For th...

  • Feature Paper
  • Article
  • Open Access
5 Citations
7,121 Views
10 Pages

17 February 2023

Motor dysfunctions in patients with Down Syndrome (DS) result in poor locomotion and an altered gait phenotype, characterized by compromised stability management and frequent bilateral asymmetries. Directing ground reaction forces to a point above th...

  • Feature Paper
  • Article
  • Open Access
3 Citations
2,557 Views
21 Pages

Advanced Materials Based on Azulenyl-Phenyloxazolone

  • Alina-Giorgiana Brotea,
  • Ovidiu-Teodor Matica,
  • Cornelia Musina (Borsaru),
  • Mihaela Cristea,
  • Amalia Stefaniu,
  • Andreea-Madalina Pandele and
  • Eleonora-Mihaela Ungureanu

17 February 2023

Chemically modified electrodes (CMEs) based on 2-phenyl-4-((4,6,8-trimethylazulen-1-yl)methylene)oxazol-5(4H)-one (M) were obtained by irreversible electrooxidation of M in millimolar solutions in 0.1 M tetrabutylammonium perchlorate (TBAP) in aceton...

  • Article
  • Open Access
6 Citations
3,144 Views
37 Pages

17 February 2023

In this manuscript, we investigate the electromagnetic radiation of a binary system of electrically charged black holes. Using the results of previous works, we compute the analytical expression for the waveform, the phase, and the Fourier transform...

  • Article
  • Open Access
3 Citations
2,269 Views
15 Pages

17 February 2023

Natural symmetries exist in several processes of chemistry, physics, and biology. Symmetries possess interesting dynamical characteristics that cannot be seen in non-symmetric systems. The present paper investigates the competition between two bankin...

  • Article
  • Open Access
9 Citations
3,538 Views
14 Pages

17 February 2023

The interplay of chiral dynamics and gluodynamics plays an essential role in the nonperturbative QCD region, and the chiral phase transition and deconfinement phase transition are the main topics of QCD phase transitions under extreme conditions, e.g...

  • Feature Paper
  • Article
  • Open Access
7 Citations
3,298 Views
18 Pages

17 February 2023

We conducted a systematic investigation using state-of-the-art techniques on the electronic and optical properties of two crystals of alkaline earth metal fluorides, namely rutile MgF2 and cubic SrF2. For these two crystals of different symmetry, we...

  • Article
  • Open Access
28 Citations
6,366 Views
17 Pages

17 February 2023

Fifth-generation mobile communication networks (5G)/Beyond 5G (B5G) can achieve higher data rates, more significant connectivity, and lower latency to provide various mobile computing service categories, of which enhanced mobile broadband (eMBB), mas...

  • Feature Paper
  • Article
  • Open Access
2,685 Views
17 Pages

Semilocal Convergence of a Multi-Step Parametric Family of Iterative Methods

  • Eva G. Villalba,
  • Eulalia Martínez and
  • Paula Triguero-Navarro

17 February 2023

In this paper, we deal with a new family of iterative methods for approximating the solution of nonlinear systems for non-differentiable operators. The novelty of this family is that it is a m-step generalization of the Steffensen-type method by upda...

  • Review
  • Open Access
48 Citations
12,246 Views
29 Pages

Pattern Recognition and Deep Learning Technologies, Enablers of Industry 4.0, and Their Role in Engineering Research

  • Joel Serey,
  • Miguel Alfaro,
  • Guillermo Fuertes,
  • Manuel Vargas,
  • Claudia Durán,
  • Rodrigo Ternero,
  • Ricardo Rivera and
  • Jorge Sabattin

17 February 2023

The purpose of this study is to summarize the pattern recognition (PR) and deep learning (DL) artificial intelligence methods developed for the management of data in the last six years. The methodology used for the study of documents is a content ana...

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Symmetry - ISSN 2073-8994