1. Ground-Based Observations of the Sun for Space Weather Forecasting

   • A. G. Tlatov
   • A. A. Pevtsov

   OriginalPaper 25 December 2023 Pages: 863 - 881

   

2. Derivation of the Basic Magnetohydrodynamic Dynamo Equations Obtained by the Vector Potential Averaging in a Time Short-Correlated Turbulence

   • R. R. Allahverdiyev
   • E. V. Yushkov
   • D. D. Sokoloff

   OriginalPaper 25 December 2023 Pages: 882 - 891

   

3. On the Efficiency of Radio Emissions at the Double Plasma Frequency in the Magnetosphere of Exoplanet HD189733b

   • V. V. Zaitsev
   • V. E. Shaposhnikov
   • M. S. Rumenskikh

   OriginalPaper 25 December 2023 Pages: 892 - 898

   

4. The Influence of Eruptive Processes in Active Regions on Oscillations of the Magnetic Field Parameters in Sunspot Umbrae

   • Yu. S. Zagainova
   • V. G. Fainshtein

   OriginalPaper 25 December 2023 Pages: 899 - 909

   

5. Conditions for the Excitation of Type I Solar Bursts

   • P. A. Bespalov
   • O. N. Savina

   OriginalPaper 25 December 2023 Pages: 910 - 915

   

6. The Frequency of Occurrence of Pre-Flare Fluctuations in Microwave Radiation of Active Regions

   • V. E. Abramov-Maximov
   • I. A. Bakunina

   OriginalPaper 25 December 2023 Pages: 916 - 919

   

7. Links between Adjacent 11-Year Solar Cycles and Their Mutual Conditioning

   • V. G. Ivanov
   • Yu. A. Nagovitsyn

   OriginalPaper 25 December 2023 Pages: 920 - 924

   

8. The Relationships between Cyclic Variations of Solar Magnetic Fields of Various Scales in Cycles 21–25

   • I. A. Bilenko

   OriginalPaper 25 December 2023 Pages: 925 - 936

   

9. Sub-Terahertz Radiation Features from the Flare of Proxima Cen

   • Yu. T. Tsap
   • A. V. Stepanov
   • Yu. G. Kopylova

   OriginalPaper 25 December 2023 Pages: 937 - 941

   

10. Isotope Traces of Early Solar Activity

    • G. I. Vasiliev
    • E. S. Melikhova
    • A. K. Pavlov

    OriginalPaper 25 December 2023 Pages: 942 - 946

    

11. On the Role of the Neutral Plasma Component in the Electric Current Dissipation and the Formation of a Transition Region in the Solar Atmosphere

    • V. V. Zaitsev
    • A. V. Stepanov
    • E. G. Kupriyanova

    OriginalPaper 25 December 2023 Pages: 947 - 952

    

12. Long-Term Changes in Main Trajectories of Extratropical Cyclones in the North Atlantic and Their Possible Association with Solar Activity

    • S. V. Veretenenko
    • P. B. Dmitriev
    • V. A. Dergachev

    OriginalPaper 25 December 2023 Pages: 953 - 965

    

13. Long-Term Variations of the Magnetic Field of the Solar Photosphere

    • E. S. Vernova
    • M. I. Tyasto
    • D. G. Baranov

    OriginalPaper 25 December 2023 Pages: 966 - 974

    

14. Features of the Structure and Dynamics of the Active Region 12 673 Associated with Flares

    • A. A. Golovko
    • I. I. Salakhutdinova

    OriginalPaper 25 December 2023 Pages: 975 - 983

    

15. Solar Cycles and Covid-19 Pandemic Paradoxes

    • M. V. Ragulskaya

    OriginalPaper 25 December 2023 Pages: 984 - 995

    

16. Studying the Wilson Effect from the Analysis of Averaged Sunspot Shapes

    • K. A. Tlatova
    • A. G. Tlatov

    OriginalPaper 25 December 2023 Pages: 996 - 999

    

17. Magnetic Reconnection Flux during Two Flares on September 6, 2017

    • O. S. Gopasyuk
    • A. E. Volvach
    • I. V. Yakubovskaya

    OriginalPaper 25 December 2023 Pages: 1000 - 1006

    

18. Investigation of Joy’s Law According to the Data of the Ussuriisk Astrophysical Observatory

    • D. V. Erofeev
    • A. V. Erofeeva

    OriginalPaper 25 December 2023 Pages: 1007 - 1014

    

19. Observation of the Solar Eclipse on October 25, 2022 on Radio Telescopes of the Institute of Applied Astronomy, Russian Academy of Sciences (First Results)

    • D. V. Ivanov
    • I. A. Rakhimov
    • V. Yu. Bikov

    OriginalPaper 25 December 2023 Pages: 1015 - 1023

    

20. Medium-Sized Solar Cycles in Different Epochs of Solar Activity

    • V. N. Ishkov

    OriginalPaper 25 December 2023 Pages: 1024 - 1030

    

21. Peculiarities of the Isotope Composition of Solar Cosmic Rays

    • G. A. Koval’tsov
    • V. M. Ostryakov
    • S. P. Sharag

    OriginalPaper 25 December 2023 Pages: 1031 - 1037

    

22. The Lower Ionosphere and Tectonic Processes on Earth

    • B. P. Komitov
    • V. I. Kaftan

    OriginalPaper 25 December 2023 Pages: 1038 - 1046

    

23. A Depression of Microwave Emission as a Response to the Appearance of a Jet

    • I. V. Kuzmenko

    OriginalPaper 25 December 2023 Pages: 1047 - 1053

    

24. Expansion and Compression of a Flare Loop System during the Flare on January 15, 2022 According to Ultraviolet and Microwave Data

    • V. F. Melnikov
    • N. S. Meshalkina

    OriginalPaper 25 December 2023 Pages: 1054 - 1061

    

25. Quick Event During the Decay Phase of the Microwave Emission of a Flare on May 22, 2021

    • I. D. Motyk
    • L. K. Kashapova
    • E. G. Kupriyanova

    OriginalPaper 25 December 2023 Pages: 1062 - 1071

    

26. A Model of Frequency Modulation of the 11-Year Cycle of Solar Activity

    • N. G. Ptitsyna
    • I. M. Demina

    OriginalPaper 25 December 2023 Pages: 1072 - 1078

    

27. Acceleration of Nonthermal Electrons in Coordinated Interaction with Whistler Turbulence in a Flare Loop

    • L. V. Filatov
    • V. F. Melnikov

    OriginalPaper 25 December 2023 Pages: 1079 - 1085

    

28. On the Relationship of Solar Energetic Particles with Metric Type II Radio Bursts

    • Yu. T. Tsap
    • E. A. Isaeva
    • Yu. G. Kopylova

    OriginalPaper 25 December 2023 Pages: 1086 - 1092

    

29. Disk Counterparts of Type II Spicules on the Sun

    • G. V. Yakunina

    OriginalPaper 25 December 2023 Pages: 1093 - 1100

    

30. The Temporal Characteristics of the UVB–UVA Solar Radiation during Seasonal Observation Periods in Antarctica and the Arctic

    • S. N. Shapovalov

    OriginalPaper 25 December 2023 Pages: 1101 - 1109