1. “Spectrum of Primordial Gravitational Waves in Modified Gravities: A Short Overview”
by Sergei D. Odintsov, Vasilis K. Oikonomou and Ratbay Myrzakulov
Symmetry 2022, 14(4), 729; https://doi.org/10.3390/sym14040729
Available online: https://www.mdpi.com/2073-8994/14/4/729

2. “The Cosmological Constant as Event Horizon”
by Enrique Gaztanaga
Symmetry 2022, 14(2), 300; https://doi.org/10.3390/sym14020300
Available online: https://www.mdpi.com/2073-8994/14/2/300

3. “Infrasonic, Acoustic and Seismic Waves Produced by the Axion Quark Nuggets”
by Dmitry Budker, Victor V. Flambaum and Ariel Zhitnitsky
Symmetry 2022, 14(3), 459; https://doi.org/10.3390/sym14030459
Available online: https://www.mdpi.com/2073-8994/14/3/459

4. “Improved Search for Neutron to Mirror-Neutron Oscillations in the Presence of Mirror Magnetic Fields with a Dedicated Apparatus at the PSI UCN Source”
by Nicholas J. Ayres, Zurab Berezhiani, Riccardo Biondi, Georg Bison, Kazimierz Bodek, Vira Bondar, Pin-Jung Chiu, Manfred Daum, Reza Tavakoli Dinani, Cornelis B. Doorenbos et al.
Symmetry 2022, 14(3), 503; https://doi.org/10.3390/sym14030503
Available online: https://www.mdpi.com/2073-8994/14/3/503

5. “Neutron-Mirror Neutron Oscillations in Absorbing Matter”
by Yuri Kamyshkov, James Ternullo, Louis Varriano and Zurab Berezhiani
Symmetry 2022, 14(2), 230; https://doi.org/10.3390/sym14020230
Available online: https://www.mdpi.com/2073-8994/14/2/230

6. “From Memristor-Modeled Jerk System to the Nonlinear Systems with Memristor”
by Xianming Wu, Shaobo He, Weijie Tan and Huihai Wang
Symmetry 2022, 14(4), 659; https://doi.org/10.3390/sym14040659
Available online: https://www.mdpi.com/2073-8994/14/4/659

7. “A Search for Neutron to Mirror Neutron Oscillation Using Neutron Electric Dipole Moment Measurements”
by Prajwal Mohanmurthy, Albert R. Young, Jeff A. Winger and Geza Zsigmond
Symmetry 2022, 14(3), 487;  https://doi.org/10.3390/sym14030487
Available online: https://www.mdpi.com/2073-8994/14/3/487

8. “A Search for Cosmic Ray Bursts at 0.1 PeV with a Small Air Shower Array”
by Roger Clay, Jassimar Singh, Piotr Homola, Olaf Bar, Dmitry Beznosko, Apoorva Bhatt, Gopal Bhatta, Łukasz Bibrzycki, Nikolay Budnev, David E. Alvarez-Castillo et al.
Symmetry 2022, 14(3), 501; https://doi.org/10.3390/sym14030501
Available online: https://www.mdpi.com/2073-8994/14/3/501

9. “Neutron Stars with Baryon Number Violation, Probing Dark Sectors”
by Jeffrey M. Berryman, Susan Gardner and Mohammadreza Zakeri
Symmetry 2022, 14(3), 518; https://doi.org/10.3390/sym14030518
Available online: https://www.mdpi.com/2073-8994/14/3/518

10. “Design of a New Dimension-Changeable Hyperchaotic Model Based on Discrete Memristor”
by Chengjing Wei, Guodong Li and Xiangliang Xu
Symmetry 2022, 14(5), 1019; https://doi.org/10.3390/sym14051019
Available online: https://www.mdpi.com/2073-8994/14/5/1019

11. “Time-like Proton Form Factors with Initial State Radiation Technique”
by Dexu Lin, Alaa Dbeyssi and Frank Maas
Symmetry 2022, 14(1), 91; https://doi.org/10.3390/sym14010091
Available online: https://www.mdpi.com/2073-8994/14/1/91

12. “Notes on Confinement on R³ × S¹: From Yang–Mills, Super-Yang–Mills, and QCD (adj) to QCD(F)”
by Erich Poppitz
Symmetry 2022, 14(1), 180; https://doi.org/10.3390/sym14010180
Available online: https://www.mdpi.com/2073-8994/14/1/180

13. “Low-Energy Interactions of Mesons with Participation of the First Radially Excited States in U(3) × U(3) NJL Model”
by Mikhail Konstantinovich Volkov, Aleksey Aleksandrovich Pivovarov and Kanat Nurlan
Symmetry 2022, 14(2), 308; https://doi.org/10.3390/sym14020308
Available online: https://www.mdpi.com/2073-8994/14/2/308