Announcements

We are pleased to announce the ten most notable articles published in 2020 in Symmetry (ISSN: 2073-8994):

1. “Cosmic-Ray Extremely Distributed Observatory”
by Piotr Homola et al.
Symmetry 2020, 12(11), 1835; https://doi.org/10.3390/sym12111835

2. “From Probabilistic to Quantile-Oriented Sensitivity Analysis: New Indices of Design Quantiles”
by Zdeněk Kala
Symmetry 2020, 12(10), 1720; https://doi.org/10.3390/sym12101720

3. “Numerical Investigation of Forced Convective Heat Transfer and Performance Evaluation Criterion of Al2O3/Water Nanofluid Flow inside an Axisymmetric Microchannel”
by Misagh Irandoost Shahrestani et al.
Symmetry 2020, 12(1), 120; https://doi.org/10.3390/sym12010120

4. “Variation and Correlations in Departures from Symmetry of Brain Torque, Humeral Morphology and Handedness in an Archaeological Sample of Homo sapiens”
by Antoine Balzeau et al.
Symmetry 2020, 12(3), 432; https://doi.org/10.3390/sym12030432

5. “Symmetry in Nucleic-Acid Double Helices”
by Udo Heinemann et al.
Symmetry 2020, 12(5), 737; https://doi.org/10.3390/sym12050737

6. “Complete Quantum Information in the DNA Genetic Code”
by Michel Planat et al.
Symmetry 2020, 12(12), 1993; https://doi.org/10.3390/sym12121993

7. “Taxonomy of Three-Qubit Mermin Pentagrams”
by Metod Saniga et al. 
Symmetry 2020, 12(4), 534; https://doi.org/10.3390/sym12040534

8. “A Discrete-Event Simulation of Claude Lévi-Strauss’ Structural Analysis of Myths Based on Symmetry and Double Twist Transformations”
by Jean-Francois Santucci et al. 
Symmetry 2020, 12(10), 1706; https://doi.org/10.3390/sym12101706

9. “Towards A Global Cosmic Ray Sensor Network: CREDO Detector as the First Open-Source Mobile Application Enabling Detection of Penetrating Radiation”
by Łukasz Bibrzycki et al.
Symmetry 2020, 12(11), 1802; https://doi.org/10.3390/sym12111802

10. “Finding and Breaking Lie Symmetries: Implications for Structural Identifiability and Observability in Biological Modelling”
by Gemma Massonis et al.
Symmetry 2020, 12(3), 469; https://doi.org/10.3390/sym12030469

We are pleased to announce that we have selected the ten most notable articles published in Symmetry (ISSN: 2073-8994) in 2021. You are welcome to read them!

1. “Direct Esthetic Composite Restorations in Anterior Teeth: Managing Symmetry Strategies”
by Gaetano Paolone et al.
Symmetry 2021, 13(5), 797; https://doi.org/10.3390/sym13050797

2. “Quantum Heat Engines with Singular Interactions”
by Nathan M. Myers et al.
Symmetry 2021, 13(6), 978; https://doi.org/10.3390/sym13060978

3. “The Search for μ⁺ → e⁺γ with 10^–14 Sensitivity: The Upgrade of the MEG Experiment”
Alessandro M. Baldini et al.
Symmetry 2021, 13(9), 1591; https://doi.org/10.3390/sym13091591

4. “Retrodeformation of the Steinheim Cranium: Insights into the Evolution of Neanderthals”
by Costantino Buzi et al.
Symmetry 2021, 13(9), 1611; https://doi.org/10.3390/sym13091611

5. “Partitioning Pattern of Natural Products Based on Molecular Properties Descriptors Representing Drug-Likeness”
by Miroslava Nedyalkova et al.
Symmetry 2021, 13(4), 546; https://doi.org/10.3390/sym13040546

6. “Non-Coding RNAs and Reactive Oxygen Species–Symmetric Players of the Pathogenesis Associated with Bacterial and Viral Infections”
by Zaki Milhem et al.
Symmetry 2021, 13(7), 1307; https://doi.org/10.3390/sym13071307

7. “Symmetry, Combinatorics, Artificial Intelligence, Music and Spectroscopy”
by Krishnan Balasubramanian
Symmetry 2021, 13(10), 1850; https://doi.org/10.3390/sym13101850

8. “Morphology of an Interacting Three-Dimensional Trapped Bose–Einstein Condensate from Many-Particle Variance Anisotropy”
by Ofir E. Alon
Symmetry 2021, 13(7), 1237; https://doi.org/10.3390/sym13071237

9. “Fluctuating Asymmetry and Sexual Dimorphism in Human Facial Morphology: A Multi-Variate Study”
by Omid Ekrami et al.
Symmetry 2021, 13(2), 304; https://doi.org/10.3390/sym13020304

10. “Progress on the Stereoselective Synthesis of Chiral Molecules Based on Metal-Catalyzed Dynamic Kinetic Resolution of Alcohols with Lipases”
by Raffaella Ferraccioli
Symmetry 2021, 13(9), 1744; https://doi.org/10.3390/sym13091744

We are pleased to report that the 2021 CiteScore for Symmetry (ISSN: 2073-8994) is 4.3. This represents a significant increase from our previous score of 3.4, meaning that the journal now ranks:

• 24/391 (Q1) in the “General Mathematics” category;
• 20/90 (Q1) in the “Computer Science” category;
• 18/63 (Q2) in the “Physics and Astronomy” category;
• 16/50 (Q2) in the “Chemistry” category.

The 2021 citation metrics have been officially released in Scopus!

We are pleased to announce that 182 MDPI journals are included, of which:

● 21 journals received their first CiteScore.
● 85% of journals increased their CiteScore from 2020.
● 155 journals (85%) ranked above average, in at least one category.

The following 65 MDPI journals (36%) ranked among the top 25% of journals, in at least one category:

Source: 2021 CiteScores™ (Elsevier)

We are pleased to announce that we have selected five Web of Science “Highly Cited Papers” from articles published in 2020 and 2021. You are welcome to read them!

1. “A GL Model on Thermo-Elastic Interaction in a Poroelastic Material Using Finite Element Method”
by Tareq Saeed et al.
Symmetry 2020, 12(3), 488; https://doi.org/10.3390/sym12030488

2. “Are MCDA Methods Benchmarkable? A Comparative Study of TOPSIS, VIKOR, COPRAS, and PROMETHEE II Methods”
by Wojciech Sałabun et al.
Symmetry 2020, 12(9), 1549; https://doi.org/10.3390/sym12091549

3. “A New Version of the Hermite–Hadamard Inequality for Riemann–Liouville Fractional Integrals”
by Pshtiwan Othman Mohammed et al.
Symmetry 2020, 12(4), 610; https://doi.org/10.3390/sym12040610

4. “General Fractional Integrals and Derivatives of Arbitrary Order”
by Yuri Luchko
Symmetry 2021, 13(5), 755; https://doi.org/10.3390/sym13050755

5. “On the Arcsecant Hyperbolic Normal Distribution. Properties, Quantile Regression Modeling and Applications”
by Mustafa Ç. Korkmaz et al.
Symmetry 2021, 13(1), 117; https://doi.org/10.3390/sym13010117

1. “Tensor-Based Adaptive Filtering Algorithms”
by Laura-Maria Dogariu et al.
Symmetry 2021, 13(3), 481
Available online: https://www.mdpi.com/2073-8994/13/3/481

2. “Global Sensitivity Analysis of Quantiles: New Importance Measure Based on Superquantiles and Subquantiles”
by Zdeněk Kala
Symmetry 2021, 13(2), 263
Available online: https://www.mdpi.com/2073-8994/13/2/263

3. “Fingerprint Classification Based on Deep Learning Approaches: Experimental Findings and Comparisons”
by Carmelo Militello et al.
Symmetry 2021, 13(5), 750
Available online: https://www.mdpi.com/2073-8994/13/5/750

4. “Extending the Model-Based Controller Design to Higher-Order Plant Models and Measurement Noise”
by Mikulas Huba et al.
Symmetry 2021, 13(5), 798
Available online: https://www.mdpi.com/2073-8994/13/5/798

5. “Nanofluids for the Next Generation Thermal Management of Electronics: A Review”
by Ana Moita et al.
Symmetry 2021, 13(8), 1362
Available online: https://www.mdpi.com/2073-8994/13/8/1362

6. “Building a Fuzzy Classifier Based on Whale Optimization Algorithm to Detect Network Intrusions”
by Nikolay Koryshev et al.
Symmetry 2021, 13(7), 1211
Available online: https://www.mdpi.com/2073-8994/13/7/1211

7. “Discrete-Time Pole-Region Robust Controller for Magnetic Levitation Plant”
by Mária Hypiusová et al.
Symmetry 2021, 13(1), 142
Available online: https://www.mdpi.com/2073-8994/13/1/142

1. “General Fractional Integrals and Derivatives of Arbitrary Order”
by Yuri Luchko
Symmetry 2021, 13(5), 755
Available online: https://www.mdpi.com/2073-8994/13/5/755

2. “Projected-Reflected Subgradient–Extragradient Method and Its Real-World Applications”
by Aviv Gibali et al.
Symmetry 2021, 13(3), 489
Available online: https://www.mdpi.com/2073-8994/13/3/489

3. “Regularity Criteria for the 3D Magneto-Hydrodynamics Equations in Anisotropic Lorentz Spaces”
by Maria Alessandra Ragusa et al.
Symmetry 2021, 13(4), 625
Available online: https://www.mdpi.com/2073-8994/13/4/625

4. “A Topology Optimization Method Based on Non-Uniform Rational Basis Spline Hyper-Surfaces for Heat Conduction Problems”
by Marco Montemurro et al.
Symmetry 2021, 13(5), 888
Available online: https://www.mdpi.com/2073-8994/13/5/888

5. “Feature Ranking and Differential Evolution for Feature Selection in Brushless DC Motor Fault Diagnosis”
by Chun-Yao Lee et al.
Symmetry 2021, 13(7), 1291
Available online: https://www.mdpi.com/2073-8994/13/7/1291

6. “On the Fekete–Szegö Problem for Meromorphic Functions Associated with p,q-Wright Type Hypergeometric Function”
by Adriana Cătaş
Symmetry 2021, 13(11), 2143
Available online: https://www.mdpi.com/2073-8994/13/11/2143

1. “Probing the Nuclear Equation of State from the Existence of a ∼2.6 M⊙ Neutron Star: The GW190814 Puzzle”
by Alkiviadis Kanakis-Pegios et al.
Symmetry 2021, 13(2), 183
Available online: https://www.mdpi.com/2073-8994/13/2/183 

2. “Lorentz Symmetry Group, Retardation and Energy Transformations in a Relativistic Engine”
by Shailendra Rajput et al.
Symmetry 2021, 13(3), 420
Available online: https://www.mdpi.com/2073-8994/13/3/420 

3. “Fluctuation–Dissipation Relations in Active Matter Systems”
by Lorenzo Caprini et al.
Symmetry 2021, 13(1), 81
Available online: https://www.mdpi.com/2073-8994/13/1/81 

4. “Spontaneous and Stimulated Undulator Radiation in Symmetric and Asymmetric Multi-Periodic Magnetic Fields”
by Konstantin Zhukovsky et al.
Symmetry 2021, 13(1), 135
Available online: https://www.mdpi.com/2073-8994/13/1/135 

5. “A Modern View of the Equation of State in Nuclear and Neutron Star Matter”
by G. Fiorella Burgio et al.
Symmetry 2021, 13(3), 400
Available online: https://www.mdpi.com/2073-8994/13/3/400 

6. “Scalarized Nutty Wormholes”
by Rustam Ibadov et al.
Symmetry 2021, 13(1), 89
Available online: https://www.mdpi.com/2073-8994/13/1/89 

7. “Nucleon Structure and Spin Effects in Elastic Hadron Scattering”
by Oleg Selyugin
Symmetry 2021, 13(2), 164
Available online: https://www.mdpi.com/2073-8994/13/2/164

8. “Electron Symmetry Breaking during Attosecond Charge Migration Induced by Laser Pulses: Point Group Analyses for Quantum Dynamics”
by Dietrich Haase et al.
Symmetry 2021, 13(2), 205
Available online: https://www.mdpi.com/2073-8994/13/2/205 

9. “Historical Introduction to Chiral Quark Models”
by Francisco Fernández et al.
Symmetry 2021, 13(2), 252
Available online: https://www.mdpi.com/2073-8994/13/2/252

10. “Coupling Hadron-Hadron Thresholds within a Chiral Quark Model Approach”
by Pablo G. Ortega et al.
Symmetry 2021, 13(2), 279
Available online: https://www.mdpi.com/2073-8994/13/2/279

11. “Siberian Snakes, Figure-8 and Spin Transparency Techniques for High Precision Experiments with Polarized Hadron Beams in Colliders”
by Yaroslav S. Derbenev et al.
Symmetry 2021, 13(3), 398
Available online: https://www.mdpi.com/2073-8994/13/3/398

12. “Power Law Duality in Classical and Quantum Mechanics”
by Akira Inomata et al.
Symmetry 2021, 13(3), 409
Available online: https://www.mdpi.com/2073-8994/13/3/409

13. “Connecting in the Dirac Equation the Clifford Algebra of Lorentz Invariance with the Lie Algebra of SU(N) Gauge Symmetry”
by Eckart Marsch et al.
Symmetry 2021, 13(3), 475
Available online: https://www.mdpi.com/2073-8994/13/3/475

14. “What Is the Size and Shape of a Wave Packet?”
by Larry S. Schulman
Symmetry 2021, 13(4), 527
Available online: https://www.mdpi.com/2073-8994/13/4/527 

15. “Gravity with Explicit Diffeomorphism Breaking”
by Robert Bluhm et al.
Symmetry 2021, 13(4), 660
Available online: https://www.mdpi.com/2073-8994/13/4/660

16. “Improved Bounds on Lorentz Symmetry Violation from High-Energy Astrophysical Sources”
by Brett Altschul
Symmetry 2021, 13(4), 688
Available online: https://www.mdpi.com/2073-8994/13/4/688

17. “Radiative and Meson Decays of Y(4230) in Flavor SU(3)”
by Luciano Maiani et al.
Symmetry 2021, 13(5), 751
Available online: https://www.mdpi.com/2073-8994/13/5/751

18. “Protein Helical Structures: Defining Handedness and Localization Features”
by Alla E. Sidorova et al.
Symmetry 2021, 13(5), 879
Available online: https://www.mdpi.com/2073-8994/13/5/879

1. “Two Faces of Water in the Formation and Stabilization of Multicomponent Crystals of Zwitterionic Drug-Like Compounds”
by Mikhail V. Vener et al.
Symmetry 2021, 13(3), 425
Available online: https://doi.org/10.3390/sym13030425 

2. “Theoretical Study of closo-Borate Anions [B_nH_n]²⁻ (n = 5–12): Bonding, Atomic Charges, and Reactivity Analysis”
by Ilya N. Klyukin et al.
Symmetry 2021, 13(3), 464
Available online: https://doi.org/10.3390/sym13030464 

3. “Supramolecular Chirogenesis in Bis-Porphyrin: Crystallographic Structure and CD Spectra for a Complex with a Chiral Guanidine Derivative”
by Dzmitry Kananovich et al.
Symmetry 2021, 13(2), 275
Available online: https://doi.org/10.3390/sym13020275

4. “Electrochemical Comparison on New (Z)-5-(Azulen-1-Ylmethylene)-2-Thioxo-Thiazolidin-4-Ones”
by George-Octavian Buica et al.
Symmetry 2021, 13(4), 588
Available online: https://doi.org/10.3390/sym13040588 

5. “Self-Assembly of Hydrogen-Bonded Cage Tetramers of Phosphonic Acid”
by Peter M. Tolstoy et al.
Symmetry 2021, 13(2), 258
Available online: https://doi.org/10.3390/sym13020258 

6. “Azulene Moiety as Electron Reservoir in Positively Charged Systems; A Short Survey”
by Alexandru C. Razus
Symmetry 2021, 13(4), 526
Available online: https://doi.org/10.3390/sym13040526 

7. “Structure-Property Relationship in Selected Naphtho- and Anthra-Quinone Derivatives on the Basis of Density Functional Theory and Car–Parrinello Molecular Dynamics”
by Aneta Jezierska et al.
Symmetry 2021, 13(4), 564
Available online: https://doi.org/10.3390/sym13040564 

8. “Cooperation/Competition between Halogen Bonds and Hydrogen Bonds in Complexes of 2,6-Diaminopyridines and X-CY₃ (X = Cl, Br; Y = H, F)”
by Barbara Bankiewicz et al.
Symmetry 2021, 13(5), 766
Available online: https://doi.org/10.3390/sym13050766 

9. “Use of the Molecular Dynamics Method to Investigate the Stability of α-α-Corner Structural Motifs in Proteins”
by Anna L. Kaysheva et al.
Symmetry 2021, 13(7), 1193
Available online: https://doi.org/10.3390/sym13071193 

10. “On the Question of Stepwise [4+2] Cycloaddition Reactions and Their Stereochemical Aspects”
by Radomir Jasiński
Symmetry 2021, 13(10), 1911
Available online: https://doi.org/10.3390/sym13101911

1. “In Silico Investigation on the Interaction of Chiral Phytochemicals from Opuntia ficus-indica with SARS-CoV-2 M^pro”
   by Caterina Vicidomini et al.
   Symmetry 2021, 13(6), 1041
   Available online: https://doi.org/10.3390/sym13061041

2. “Kinematic Analysis of Lower Limb Joint Asymmetry During Gait in People with Multiple Sclerosis”
   by Massimiliano Pau et al.
   Symmetry 2021, 13(4), 598
   Available online: https://doi.org/10.3390/sym13040598

3. “Functional Lateralization of the Mirror Neuron System in Monkey and Humans”
   by Antonino Errante et al.
   Symmetry 2021, 13(1), 77
   Available online: https://doi.org/10.3390/sym13010077

4. “Bootstrapped Motion of an Agent on an Adaptive Resource Landscape”
   by Trung V. Phan et al.
   Symmetry 2021, 13(2), 225
   Available online: https://doi.org/10.3390/sym13020225

5. “Individual Laterality in Ghost Crabs (Ocypode saratan) Influences Burrowing Behavior”
   by Reuven Yosef et al.
   Symmetry 2021, 13(8), 1512
   Available online: https://doi.org/10.3390/sym13081512

6. “Brain Symmetry Analysis during the Use of a BCI Based on Motor Imagery for the Control of a Lower-Limb Exoskeleton”
   by Laura Ferrero et al.
   Symmetry 2021, 13(9), 1746
   Available online: https://doi.org/10.3390/sym13091746

7. “Analysis of Fractal Structures in Dehydrated Films of Protein Solutions”
   by Maksim Baranov et al.
   Symmetry 2021, 13(1), 123
   Available online: https://doi.org/10.3390/sym13010123

8. “Handedness Development: A Model for Investigating the Development of Hemispheric Specialization and Interhemispheric Coordination”
   by George F. Michel
   Symmetry 2021, 13(6), 992
   Available online: https://doi.org/10.3390/sym13060992

9. “Get a Grip: Variation in Human Hand Grip Strength and Implications for Human Evolution”
   by Ameline Bardo et al.
   Symmetry 2021, 13(7), 1142
   Available online: https://doi.org/10.3390/sym13071142