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Symmetry, Volume 15, Issue 9

September 2023 - 188 articles

Cover Story: We review the recent trends on inflationary dynamics in the context of viable modified gravity theories. After providing a general overview of the inflationary paradigm emphasizing what problems of hot Big Bang theory inflation solves, and a somewhat introductory presentation of single field inflationary theories with minimal and non-minimal couplings, we review how inflation can be realized in terms of several string motivated models of inflation, which involve Gauss–Bonnet couplings of the scalar field, higher order derivatives of the scalar field and some subclasses of viable Horndeski theories, which are ingredients of most mainstream modified gravity theories. View this paper
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Articles (188)

  • Article
  • Open Access
1 Citations
1,211 Views
14 Pages

20 September 2023

Sample range and the associated functions such as survival function and mean residual life function have found many important applications in the reliability field. In this work, we establish some results that are in two different directions. In the...

  • Article
  • Open Access
21 Citations
2,099 Views
18 Pages

N-Hypersoft Sets: An Innovative Extension of Hypersoft Sets and Their Applications

  • Sagvan Y. Musa,
  • Ramadhan A. Mohammed and
  • Baravan A. Asaad

20 September 2023

This paper introduces N-hypersoft (N-HS) sets—an enriched and versatile extension of hypersoft (HS) sets—designed to handle evaluations involving both binary and non-binary data while embodying an inherent sense of structural symmetry. Th...

  • Article
  • Open Access
36 Citations
2,135 Views
19 Pages

20 September 2023

Nanotechnology is well-known for its versatile and general thermal transport disciplines, which are used in semiconductors, spacecraft, bioengineering, functional electronics, and biosensors. As a result, process optimization has attracted the intere...

  • Article
  • Open Access
1 Citations
1,141 Views
10 Pages

Evidence of Noisy Oscillations of cAMP under Nutritional Stress Condition in Budding Yeast

  • Sonia Colombo,
  • Maddalena Collini,
  • Laura D’Alfonso,
  • Giuseppe Chirico and
  • Enzo Martegani

20 September 2023

The Ras/cAMP/PKA pathway regulates responses to nutrients’ availability and stress in budding yeast. The cAMP levels are subjected to negative feedback, and we have previously simulated a dynamic model of this pathway suggesting the existence o...

  • Article
  • Open Access
5 Citations
1,599 Views
21 Pages

20 September 2023

The two-dimensional instability of a horizontal layer of boiling liquid with a finite height was experimentally studied. In this layer, “vapor columns” rose at the corners of a square rectangular grid, and the symmetry of “vapor col...

  • Article
  • Open Access
2 Citations
1,987 Views
12 Pages

Systematic Study of Vibrational Spectra of Octahedral Rhenium Clusters {Re6S8-xBrx}Bry (x = 0, 1, 2, 3, 4) with Mixed Sulfur/Bromine Inner Ligands

  • Alexandra Yu. Ledneva,
  • Mariia N. Ivanova,
  • Pavel A. Poltarak,
  • Spartak S. Yarovoy,
  • Boris A. Kolesov,
  • Vladimir E. Fedorov and
  • Nikolay G. Naumov

19 September 2023

A series of rhenium compounds with the octahedral cluster core {Re6S8-xBrx} (x = 0–4): with molecular and polymeric structure were obtained. In these compounds the cluster core composition varies monotonically, the geometry of the cluster and t...

  • Article
  • Open Access
9 Citations
1,772 Views
11 Pages

Some Fixed-Point Results in Extended S-Metric Space of Type (α,β)

  • Reham Qaralleh,
  • Abdalla Tallafha and
  • Wasfi Shatanawi

19 September 2023

In this paper, we introduce the notion of extended S-metric space of type (α,β). This extension is a generalization of S-metric space, defined by employing two functions instead of considering a constant in the second condition of the S-me...

  • Article
  • Open Access
1 Citations
1,555 Views
11 Pages

Certain Class of Close-to-Convex Univalent Functions

  • Shatha S. Alhily and
  • Alina Alb Lupas

19 September 2023

The purpose of this paper was to define a new class of close-to-convex function, denoted by CV(δ,α), which is a subclass of all functions that are univalent in D and have positive coefficients normalized by the conditions f(0)=0, &nb...

  • Article
  • Open Access
3 Citations
1,890 Views
17 Pages

18 September 2023

Distantly supervised relation extraction (DSRE) utilizes an external knowledge base to automatically label a corpus, which inevitably leads to the problem of mislabeling. Existing approaches utilize BERT to provide instances and relation embeddings t...

  • Article
  • Open Access
8 Citations
3,045 Views
10 Pages

18 September 2023

Dynamical chiral symmetry breaking (DχSB) in quantum chromo dynamics (QCD) for light quarks is an indispensable concept for understanding hadron physics, i.e., the spectrum and the structure of hadrons. In functional approaches to QCD, the respec...

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Symmetry - ISSN 2073-8994Creative Common CC BY license