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Symmetry, Volume 10, Issue 11

November 2018 - 129 articles

Cover Story: We found that the tension between CMB (Planck 2015) and cosmic shear data (CFHTLenS and KiDS-450), arising in the σ8 - Ωm plane and described by the S8 parameter in the ΛCDM scenario, can be solved by allowing the Alens parameter to vary. We found that the higher incorrect amount of lensing in the Planck 2015 power spectra could be responsible for this tension. The CMB lensing amplitude Alens, a phenomenological parameter expected equal to 1, is in fact more than 2 sigma higher in the Planck 2015 data, and it is not supported by the trispectrum analysis that measures the true amount of lensing. By varying Alens, the S8 values of CMB and cosmic shear data agree within one sigma. Moreover, we showed that massive neutrinos, which are usually varied to change the σ8 constraints, do not relieve the S8 tension. View this paper.
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Articles (129)

  • Article
  • Open Access
8 Citations
3,468 Views
16 Pages

A New Class of Hermite-Apostol Type Frobenius-Euler Polynomials and Its Applications

  • Serkan Araci,
  • Mumtaz Riyasat,
  • Shahid Ahmad Wani and
  • Subuhi Khan

19 November 2018

The article is written with the objectives to introduce a multi-variable hybrid class, namely the Hermite–Apostol-type Frobenius–Euler polynomials, and to characterize their properties via different generating function techniques. Several...

  • Article
  • Open Access
10 Citations
2,756 Views
16 Pages

Design of a New Synthetic Acceptance Sampling Plan

  • Saeed A. Dobbah,
  • Muhammad Aslam and
  • Khushnoor Khan

19 November 2018

In this paper, we propose a new synthetic sampling plan assuming that the quality characteristic follows the normal distribution with known and unknown standard deviation. The proposed plan is given and the operating characteristic (OC) function is d...

  • Article
  • Open Access
10 Citations
7,190 Views
26 Pages

19 November 2018

In this paper, we propose a new scale-free social networks (SNs) evolution model that is based on homophily combined with preferential attachments. Our model enables the SN researchers to generate SN synthetic data for the evaluation of multi-facet S...

  • Article
  • Open Access
12 Citations
4,592 Views
13 Pages

19 November 2018

In this paper, new conditions on parameters in difference sets are derived to satisfy symplectic inner product, and new constructions of quantum stabilizer codes are proposed from the conditions. The conversion of the difference sets into parity-chec...

  • Article
  • Open Access
4 Citations
3,766 Views
19 Pages

Transceiver Design and Power Allocation for SWIPT in MIMO Cognitive Radio Systems

  • Fahui Wu,
  • Lin Xiao,
  • Dingcheng Yang,
  • Laurie Cuthbert and
  • Xiaoping Liu

18 November 2018

In this paper, we consider a symmetric wireless communication network, i.e., each user is equipped with the same number of antennas. Specifically, this paper studies simultaneous wireless information and power transfer (SWIPT) in a K-user multiple-in...

  • Article
  • Open Access
102 Citations
15,175 Views
18 Pages

18 November 2018

Artificial neural networks (ANN) have attracted significant attention from researchers because many complex problems can be solved by training them. If enough data are provided during the training process, ANNs are capable of achieving good performan...

  • Article
  • Open Access
77 Citations
9,141 Views
14 Pages

Fuzzy AHP Application for Supporting Contractors’ Bidding Decision

  • Agnieszka Leśniak,
  • Daniel Kubek,
  • Edyta Plebankiewicz,
  • Krzysztof Zima and
  • Stanisław Belniak

16 November 2018

This paper proposes the author’s model based on the Fuzzy Analytic Hierarchy Process (FAHP) to improve the efficiency of contractor bidding decisions. The essence of the AHP method is to make pairwise comparisons of available options against al...

  • Feature Paper
  • Article
  • Open Access
3 Citations
3,198 Views
9 Pages

Neutrosophic Computability and Enumeration

  • Ahmet Çevik,
  • Selçuk Topal and
  • Florentin Smarandache

16 November 2018

We introduce oracle Turing machines with neutrosophic values allowed in the oracle information and then give some results when one is permitted to use neutrosophic sets and logic in relative computation. We also introduce a method to enumerate the el...

  • Article
  • Open Access
6 Citations
3,855 Views
18 Pages

Characterization of HIV-2 Protease Structure by Studying Its Asymmetry at the Different Levels of Protein Description

  • Guillaume Ollitrault,
  • Sandrine Fartek,
  • Diane Descamps,
  • Anne-Claude Camproux,
  • Benoît Visseaux and
  • Leslie Regad

16 November 2018

HIV-2 protease (PR2) is a homodimer, which is an important target in the treatment of the HIV-2 infection. In this study, we developed an in silico protocol to analyze and characterize the asymmetry of the unbound PR2 structure using three levels of...

  • Article
  • Open Access
4 Citations
4,471 Views
25 Pages

16 November 2018

The article analyzes Bernoulli’s binary sequences in the representation of empirical events about water usage and continuous expenditure systems. The main purpose is to identify among variables that constitute water resources consumption at pub...

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Symmetry - ISSN 2073-8994