Reviews of topical problems

I.K. Razumov, A.Y. Yermakov, Yu.N. Gornostyrev, B.B. Straumal “Nonequilibrium phase transformations in alloys under severe plastic deformation” Phys. Usp. 63 733–757 (2020)

Physics of our days

I.M. Dremin “Ultraperipheral nuclear interactions” Phys. Usp. 63 758–765 (2020)

N.L. Popov, I.A. Artyukov, A.V. Vinogradov, V.V. Protopopov “Wave packet in the phase problem in optics and ptychography” Phys. Usp. 63 766–774 (2020)

Methodological notes

E.A. Vinogradov “Optical phonons with a negative oscillator strength” Phys. Usp. 63 775–781 (2020)

Conferences and symposia

“Earth embosomed by the Sun: heliophysics and space weather (Scientific session of the Physical Sciences Division of the Russian Academy of Sciences, 5 June 2019)” Phys. Usp. 63 782–782 (2020)

S.A. Bogachev, A.S. Ulyanov, A.S. Kirichenko, I.P. Loboda, A.A. Reva “Microflares and nanoflares in the solar coron” Phys. Usp. 63 783–800 (2020)

A.A. Petrukovich, H.V. Malova, V.Yu. Popov, E.V. Maiewski, V.V. Izmodenov, O.A. Katushkina, A.A. Vinogradov, M.O. Riazantseva, L.S. Rakhmanova, T.V. Podladchikova, G.N. Zastenker, Yu.I. Yermolaev, I.G. Lodkina, L.S. Chesalin “Modern view of the solar wind from micro to macro scales” Phys. Usp. 63 801–811 (2020)

V.D. Kuznetsov, A.I. Osin “Heliophysics: from observations to models and applications” Phys. Usp. 63 812–817 (2020)

A.L. Lysenko, D.D. Frederiks, G.D. Fleishman, R.L. Aptekar, A.T. Altyntsev, S.V. Golenetskii, D.S. Svinkin, M.V. Ulanov, A.E. Tsvetkova, A.V. Ridnaia “X-ray and gamma-ray emission from solar flares” Phys. Usp. 63 818–832 (2020)

Personalia

Yu.Yu. Balega, D.V. Bisikalo, L.M. Zelenyi, M.Ya. Marov, A.A. Petrukovich, K.A. Postnov, V.A. Rubakov, N.A. Sakhibullin, A.A. Starobinskii, R.A. Sunyaev, E.M. Churazov, B.M. Shustov “Anatolii Mikhailovich Cherepashchuk (on his 80th birthday)” Phys. Usp. 63 833–834 (2020)

Physics news on the internet

Yu.N. Eroshenko “Physics news on the Internet (based on electronic preprints)” Phys. Usp. 63 835–836 (2020)