Reviews of topical problems

A.B. Aleksandrov, A.B. Dashkina, N.S. Konovalova, N.M. Okat’eva, N.G. Polukhina, N.I. Starkov, V.E. Tioukov, M.M. Chernyavsky, T.V. Shchedrina “Search for weakly interacting massive dark matter particles: state of the art and prospects” Phys. Usp. 64 861–889 (2021)

S.I. Vedeneev “Pseudogap problem in high-temperature superconductors” Phys. Usp. 64 890–922 (2021)

D.S. Smirnov, V.N. Mantsevich, M.M. Glazov “Theory of optically detected spin noise in nanosystems” Phys. Usp. 64 923–946 (2021)

Yu.M. Yevdokimov, S.G. Skuridin, V.I. Salyanov, S.V. Semenov, E.I. Kats “Multiplicity of 're-entrant' cholesteric structures in DNA liquid-crystalline dispersions” Phys. Usp. 64 947–963 (2021)

Physics news on the internet

Yu.N. Eroshenko “Physics news on the Internet (based on electronic preprints)” Phys. Usp. 64 964–965 (2021)