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Symmetry, Volume 12, Issue 4

2020 April - 193 articles

Cover Story: The most studied nonenzymatic spontaneous mechanisms of protein aging include oxidation, deamidation, glycation, and isomerization/racemization of specific AA residues. Isomerization and racemization represent distinct forms of spontaneous PTMs (PTMs Sp) that occur without changing the chemical contents but, rather, the symmetry patterns. Initial PTM Sp leads to the accumulation of long-lived macromolecular aggregates, which are the subject of further age-related spontaneous racemization. Protein aging becomes organism aging through the occurrence of corresponding cell physiology events. The accumulation and condensation of damaged proteins accelerates the process of protein aging. View this paper.
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Articles (193)

  • Feature Paper
  • Article
  • Open Access
8 Citations
3,483 Views
12 Pages

24 April 2020

It is, in general, essential to investigate correlations between the microstructure and properties of materials. Plastic deformation often localizes within thin layers. As a result, many material properties within such layers are very different from...

  • Review
  • Open Access
322 Citations
27,228 Views
21 Pages

Sixth Generation (6G) Wireless Networks: Vision, Research Activities, Challenges and Potential Solutions

  • Mohammed H. Alsharif,
  • Anabi Hilary Kelechi,
  • Mahmoud A. Albreem,
  • Shehzad Ashraf Chaudhry,
  • M. Sultan Zia and
  • Sunghwan Kim

24 April 2020

The standardization activities of the fifth generation communications are clearly over and deployment has commenced globally. To sustain the competitive edge of wireless networks, industrial and academia synergy have begun to conceptualize the next g...

  • Article
  • Open Access
2 Citations
4,399 Views
11 Pages

24 April 2020

This work presents a topology optimization method for symmetric hierarchical lattice structures with substructuring. In this method, we define two types of symmetric lattice substructures, each of which contains many finite elements. By controlling t...

  • Article
  • Open Access
6 Citations
3,362 Views
18 Pages

Robust Finite-Time Control of Linear System with Non-Differentiable Time-Varying Delay

  • Wanwisa Puangmalai,
  • Jirapong Puangmalai and
  • Thaned Rojsiraphisal

24 April 2020

Practical systems such as hybrid power systems are currently implemented around the world. In order to get the system to work properly, the systems usually require their behavior to be maintained or state values to stay within a certain threshold. Ho...

  • Article
  • Open Access
2 Citations
4,082 Views
19 Pages

24 April 2020

Lately, Magnetic Resonance scans have struggled with their own inherent limitations, such as spatial resolution as well as long examination times. A novel, rapid compressively-sensed magnetic resonance high-resolution image resolution algorithm is pr...

  • Article
  • Open Access
2 Citations
4,039 Views
32 Pages

24 April 2020

Classification in multi-modal data is one of the challenges in the machine learning field. The multi-modal data need special treatment as its features are distributed in several areas. This study proposes multi-codebook fuzzy neural networks by using...

  • Article
  • Open Access
10 Citations
4,841 Views
16 Pages

24 April 2020

We propose a symmetric method of accurately estimating the number of metro passengers from an individual image. To this end, we developed a network for metro-passenger counting called MPCNet, which provides a data-driven and deep learning method of u...

  • Article
  • Open Access
28 Citations
5,096 Views
8 Pages

Pancreatic Cancer Early Detection Using Twin Support Vector Machine Based on Kernel

  • Wismaji Sadewo,
  • Zuherman Rustam,
  • Hamidah Hamidah and
  • Alifah Roudhoh Chusmarsyah

23 April 2020

Early detection of pancreatic cancer is difficult, and thus many cases of pancreatic cancer are diagnosed late. When pancreatic cancer is detected, the cancer is usually well developed. Machine learning is an approach that is part of artificial intel...

  • Article
  • Open Access
11 Citations
3,428 Views
15 Pages

Direct Power Compensation in AC Distribution Networks with SCES Systems via PI-PBC Approach

  • Walter Gil-González,
  • Federico Martin Serra,
  • Oscar Danilo Montoya,
  • Carlos Alberto Ramírez and
  • César Orozco-Henao

23 April 2020

Here, we explore the possibility of employing proportional-integral passivity-based control (PI-PBC) to support active and reactive power in alternating current (AC) distribution networks by using a supercapacitor energy storage system. A direct powe...

  • Article
  • Open Access
16 Citations
3,547 Views
21 Pages

23 April 2020

Linguistic interval-valued intuitionistic fuzzy sets, as an extension of interval-valued intuitionistic fuzzy sets, have strong practical value in the management of complex uncertainty system with qualitative evaluation information. This study focuse...

  • Article
  • Open Access
5 Citations
2,730 Views
8 Pages

23 April 2020

Polarizations of primordial gravitational waves can be relevant when considering an inflationary universe in modified gravity or when matter fields survive during inflation. Such polarizations have been discussed in the Bunch–Davies vacuum. Ins...

  • Article
  • Open Access
12 Citations
6,192 Views
20 Pages

23 April 2020

Symmetries play a vital role in multimedia-aided art teaching activities. The relevant teaching systems designed with a social network, including the optimized teaching methods, are on the basis of symmetry principles. In order to study art teaching,...

  • Article
  • Open Access
38 Citations
7,109 Views
10 Pages

23 April 2020

Symmetries play very important in the dynamics of robot systems. The relevant control of robot arm motion with fault diagnosis including the optimized fuzzy algorithm based on the error rate adjustment P, I, D value (Fuzzy PID algorithm) model relies...

  • Article
  • Open Access
19 Citations
4,377 Views
19 Pages

23 April 2020

The developments in the fields of industrial Internet of Things (IIoT) and big data technologies have made it possible to collect a lot of meaningful industrial process and quality-based data. The gathered data are analyzed using contemporary statist...

  • Article
  • Open Access
12 Citations
3,642 Views
23 Pages

23 April 2020

To further promote the low-carbon and sustainable development of China’s power industry, the Chinese government is vigorously introducing competition into power sales market. Simultaneously, On November 15, 2018, the National Development and Re...

  • Article
  • Open Access
3 Citations
3,067 Views
15 Pages

Exact Mechanical Hierarchy of Non-Linear Fractional-Order Hereditariness

  • Gioacchino Alotta,
  • Emanuela Bologna and
  • Massimiliano Zingales

23 April 2020

Non-local time evolution of material stress/strain is often referred to as material hereditariness. In this paper, the widely used non-linear approach to single integral time non-local mechanics named quasi-linear approach is proposed in the context...

  • Article
  • Open Access
4 Citations
3,423 Views
29 Pages

Symmetry Classes and Matrix Representations of the 2D Flexoelectric Law

  • Houssam Abdoul-Anziz,
  • Nicolas Auffray and
  • Boris Desmorat

23 April 2020

We determine the different symmetry classes of bi-dimensional flexoelectric tensors. Using the harmonic decomposition method, we show that there are six symmetry classes. We also provide the matrix representations of the flexoelectric tensor and of t...

  • Article
  • Open Access
2 Citations
3,290 Views
12 Pages

Optimization of Public Health Education Parameters for Controlling the Spread of HIV/AIDS Infection

  • Mohammad Hossein Ostadzad,
  • Salman Baroumand and
  • Mohammad Reza Mahmoudi

22 April 2020

Due to the prevalence of Human Immuno-deficiency Virus/Acquired Immuno-Deficiency Syndrome (HIV/AIDS) infection in society and the importance of preventing the spread of this disease, a mathematical model for sexual transmission of HIV/AIDS epidemic...

  • Article
  • Open Access
22 Citations
5,478 Views
21 Pages

The Influence of Different Loads on the Footbridge Dynamic Parameters

  • Artūras Kilikevičius,
  • Darius Bačinskas,
  • Jaroslaw Selech,
  • Jonas Matijošius,
  • Kristina Kilikevičienė,
  • Darius Vainorius,
  • Dariusz Ulbrich and
  • Dawid Romek

22 April 2020

Bringing together the experience and knowledge of engineers allowed building modern footbridges as very slender structures. This in turn has led to structural vibration problems, which is a direct consequence of slender structures. In some footbridge...

  • Article
  • Open Access
6 Citations
3,111 Views
21 Pages

22 April 2020

Image interpolation is important in image zooming. To improve the quality of image zooming, in this work, we proposed a class of rational quadratic trigonometric Hermite functions with two shape parameters and two classes of C 1 -continuous Co...

  • Review
  • Open Access
9 Citations
3,040 Views
13 Pages

22 April 2020

We outline the basic properties of regular black holes, their remnants and self-gravitating solitons G-lumps with the de Sitter and phantom interiors, which can be considered as heavy dark matter (DM) candidates generically related to a dark energy (...

  • Feature Paper
  • Article
  • Open Access
40 Citations
6,112 Views
16 Pages

22 April 2020

The process of machine learning is to find parameters that minimize the cost function constructed by learning the data. This is called optimization and the parameters at that time are called the optimal parameters in neural networks. In the process o...

  • Article
  • Open Access
11 Citations
6,267 Views
13 Pages

22 April 2020

Modeling fluid flows is a general procedure to handle engineering problems. Here we present a systematic study of the flow and heat transfer around a circular cylinder by introducing a new representative appropriate drag coefficient concept. We demon...

  • Feature Paper
  • Article
  • Open Access
50 Citations
3,796 Views
19 Pages

Symmetric MHD Channel Flow of Nonlocal Fractional Model of BTF Containing Hybrid Nanoparticles

  • Muhammad Saqib,
  • Sharidan Shafie,
  • Ilyas Khan,
  • Yu-Ming Chu and
  • Kottakkaran Sooppy Nisar

22 April 2020

A nonlocal fractional model of Brinkman type fluid (BTF) containing a hybrid nanostructure was examined. The magnetohydrodynamic (MHD) flow of the hybrid nanofluid was studied using the fractional calculus approach. Hybridized silver (Ag) and Titaniu...

  • Article
  • Open Access
52 Citations
5,368 Views
24 Pages

Fuzzy-Based Symmetrical Multi-Criteria Decision-Making Procedure for Evaluating the Impact of Harmful Factors of Healthcare Information Security

  • Rajeev Kumar,
  • Abhishek Kumar Pandey,
  • Abdullah Baz,
  • Hosam Alhakami,
  • Wajdi Alhakami,
  • Alka Agrawal and
  • Raees Ahmad Khan

22 April 2020

Growing concern about healthcare information security in the wake of alarmingly rising cyber-attacks is being given symmetrical priority by current researchers and cyber security experts. Intruders are penetrating symmetrical mechanisms of healthcare...

  • Article
  • Open Access
6 Citations
3,535 Views
24 Pages

21 April 2020

A uniform theory of diffraction (UTD)-based method for analysis of the multiple diffraction of acoustic waves when considering a series of symmetric obstacles with arbitrary modeling, height and spacing is hereby presented. The method, which makes us...

  • Feature Paper
  • Article
  • Open Access
21 Citations
5,623 Views
23 Pages

AppCon: Mitigating Evasion Attacks to ML Cyber Detectors

  • Giovanni Apruzzese,
  • Mauro Andreolini,
  • Mirco Marchetti,
  • Vincenzo Giuseppe Colacino and
  • Giacomo Russo

21 April 2020

Adversarial attacks represent a critical issue that prevents the reliable integration of machine learning methods into cyber defense systems. Past work has shown that even proficient detectors are highly affected just by small perturbations to malici...

  • Article
  • Open Access
5 Citations
3,484 Views
13 Pages

Numerical Modeling of Sloshing Frequencies in Tanks with Structure Using New Presented DQM-BEM Technique

  • Zhenda Wei,
  • Junwen Feng,
  • Mohammad Ghalandari,
  • Akbar Maleki and
  • Zahra Abdelmalek

21 April 2020

The sloshing behavior of systems is influenced by different factors related to the liquid level and tank specifications. Different approaches are applicable for the assessment of sloshing behavior in a tank. In this paper, a new numerical model based...

  • Feature Paper
  • Article
  • Open Access
4 Citations
3,441 Views
22 Pages

21 April 2020

In this paper, a new nonmonotone adaptive trust region algorithm is proposed for unconstrained optimization by combining a multidimensional filter and the Goldstein-type line search technique. A modified trust region ratio is presented which results...

  • Feature Paper
  • Article
  • Open Access
61 Citations
8,465 Views
22 Pages

A Study of the Use of Gyroscope Measurements in Wearable Fall Detection Systems

  • Eduardo Casilari,
  • Moisés Álvarez-Marco and
  • Francisco García-Lagos

20 April 2020

Due to the serious impact of falls on the quality of life of the elderly and on the economical sustainability of health systems, the study of new monitoring systems capable of automatically alerting about falls has gained much research interest durin...

  • Article
  • Open Access
2 Citations
2,901 Views
16 Pages

20 April 2020

In the studied axisymmetric case of the central four-body problem, the axis of symmetry is defined by two unequal-mass bodies, while the other two bodies are situated symmetrically with respect to this axis and have equal masses. Here, we consider a...

  • Article
  • Open Access
49 Citations
4,208 Views
21 Pages

The Exponentiated Truncated Inverse Weibull-Generated Family of Distributions with Applications

  • Abdullah M. Almarashi,
  • Mohammed Elgarhy,
  • Farrukh Jamal and
  • Christophe Chesneau

20 April 2020

In this paper, we propose a generalization of the so-called truncated inverse Weibull-generated family of distributions by the use of the power transform, adding a new shape parameter. We motivate this generalization by presenting theoretical and pra...

  • Article
  • Open Access
474 Citations
25,924 Views
19 Pages

20 April 2020

The coronavirus (COVID-19) pandemic is putting healthcare systems across the world under unprecedented and increasing pressure according to the World Health Organization (WHO). With the advances in computer algorithms and especially Artificial Intell...

  • Article
  • Open Access
97 Citations
4,442 Views
23 Pages

Entropy Generation and Consequences of MHD in Darcy–Forchheimer Nanofluid Flow Bounded by Non-Linearly Stretching Surface

  • Ghulam Rasool,
  • Anum Shafiq,
  • Ilyas Khan,
  • Dumitru Baleanu,
  • Kottakkaran Sooppy Nisar and
  • Gullnaz Shahzadi

20 April 2020

Present communication aims to inspect the entropy optimization, heat and mass transport in Darcy-Forchheimer nanofluid flow surrounded by a non-linearly stretching surface. Navier-Stokes model based governing equations for non-Newtonian nanofluids ha...

  • Communication
  • Open Access
13 Citations
3,201 Views
7 Pages

Symmetrical Noncovalent Interactions Br···Br Observed in Crystal Structure of Exotic Primary Peroxide

  • Dmitrii S. Bolotin,
  • Mikhail V. Il’in,
  • Vitalii V. Suslonov and
  • Alexander S. Novikov

17 April 2020

4-Bromobenzamidrazone reacts with cyclopentanone giving 3-(4-bromophenyl)-5-(4-peroxobutyl)-1,2,4-triazole, which precipitated as pale-yellow crystals during the reaction. The intermolecular noncovalent interactions Br···Br in th...

  • Article
  • Open Access
9 Citations
2,787 Views
12 Pages

17 April 2020

We study a breather’s properties within the framework of the modified Korteweg–de Vries (mKdV) model, where cubic nonlinearity is essential. Extrema, moments, and invariants of a breather with different parameters have been analyzed. The...

  • Article
  • Open Access
3 Citations
2,453 Views
13 Pages

17 April 2020

Indirubin and its analogs such as oxindole derivatives are well known as competitive inhibitors of cyclin-dependent kinase 2 (CDK2) and play an important role in the creation of therapies in many cancer diseases. Recent research, in order to increase...

  • Article
  • Open Access
29 Citations
5,031 Views
16 Pages

17 April 2020

Automatic segmentation of metallographic image is very important for the implementation of an automatic metallographic analysis system. In this paper, a novel instance segmentation framework of a metallographic image was implemented, which can assign...

  • Article
  • Open Access
8 Citations
4,153 Views
24 Pages

17 April 2020

Digital forensics practitioners encounter numerous new terminologies during time-intensive digital investigation processes because of the explosive growth of the web, an immense amount of data, and rapid changes in technology. In such a scenario, the...

  • Article
  • Open Access
36 Citations
3,565 Views
25 Pages

17 April 2020

The major purpose of this article is to seek for exact traveling wave solutions of the nonlinear space-time Sharma–Tasso–Olver equation in the sense of conformable derivatives. The novel ( G G ) -expansion method and th...

  • Article
  • Open Access
26 Citations
4,869 Views
10 Pages

The Generalized Gielis Geometric Equation and Its Application

  • Peijian Shi,
  • David A. Ratkowsky and
  • Johan Gielis

17 April 2020

Many natural shapes exhibit surprising symmetry and can be described by the Gielis equation, which has several classical geometric equations (for example, the circle, ellipse and superellipse) as special cases. However, the original Gielis equation c...

  • Article
  • Open Access
7 Citations
4,166 Views
21 Pages

17 April 2020

The random variation of bandwidth in wireless networks causes some significant challenges to the congestion control protocols based on bandwidth estimation. In this paper, a wireless congestion control scheme based on extended Kalman filtering and ba...

  • Article
  • Open Access
7 Citations
2,985 Views
13 Pages

17 April 2020

The human visual system can recognize a person based on his physical appearance, even if extreme spatio-temporal variations exist. However, the surveillance system deployed so far fails to re-identify the individual when it travels through the non-ov...

  • Article
  • Open Access
77 Citations
6,636 Views
21 Pages

17 April 2020

The fundamental motivation of this research is to investigate the effect of flexoelectricity on a piezoelectric nanobeam for the first time involving internal viscoelasticity. To date, the effect of flexoelectricity on the mechanical behavior of nano...

  • Article
  • Open Access
3 Citations
3,184 Views
16 Pages

Protein Interaction with Dendrimer Monolayers: Energy and Surface Topology

  • Claudiu N. Lungu,
  • Melinda E. Füstös,
  • Ireneusz P. Grudziński,
  • Gabriel Olteanu and
  • Mihai V. Putz

17 April 2020

Protein interaction with polymers layers is a keystone in designing bio-nano devices. Polyamidoamines (PAMAMs) are well-known polymers. Zero aromatic core dendrimers (ZAC) are molecules with no proven toxic effect in cultured cells. When coating nano...

  • Article
  • Open Access
22 Citations
3,889 Views
22 Pages

Relaxation of the Radio-Frequency Linewidth for Coherent-Optical Orthogonal Frequency-Division Multiplexing Schemes by Employing the Improved Extreme Learning Machine

  • David Zabala-Blanco,
  • Marco Mora,
  • Cesar A. Azurdia-Meza,
  • Ali Dehghan Firoozabadi,
  • Pablo Palacios Játiva and
  • Ismael Soto

16 April 2020

A coherent optical (CO) orthogonal frequency division multiplexing (OFDM) scheme gives a scalable and flexible solution for increasing the transmission rate, being extremely robust to chromatic dispersion as well as polarization mode dispersion. Neve...

  • Article
  • Open Access
10 Citations
2,956 Views
16 Pages

16 April 2020

The manifestly-covariant Hamiltonian structure of classical General Relativity is shown to be associated with a path-integral synchronous Hamilton variational principle for the Einstein field equations. A realization of the same variational principle...

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Symmetry - ISSN 2073-8994