REVIEWS OF TOPICAL PROBLEMS 

Acoustic turbulence of second sound waves in superfluid helium

V B Efimov

929

Goos–Hänchen effect in neutron optics and the reflection time of neutron waves

V A Bushuev, A I Frank

952

PHYSICS OF OUR DAYS 

Fast radio bursts

S B Popov, K A Postnov, M S Pshirkov

965

INSTRUMENTS AND METHODS OF INVESTIGATIONS 

X-ray fluorescence imaging

V V Lider

980

FROM THE CURRENT LITERATURE 

Some discussion topics on the representation of the equilibrium Fe–Ni phase diagram and on the nature of Invar effect

N D Zemtsova

1000

METHODOLOGICAL NOTES 

The critique of quantum mind: measurement, consciousness, delayed choice, and lost coherence

A M Zheltikov

1016

CONFERENCES AND SYMPOSIA 

Topological states: what are they and what are they for? (Scientific session of the Physical Sciences Division of the Russian Academy of Sciences, 29 November 2017) 

1026

Electron properties of topological insulators. The structure of edge states and photogalvanic effects

S A Tarasenko

1026

PERSONALIA 

Radii Ivanovich Ilkaev (on his 80th birthday)

Zh I Alferov, S G Garanin, V A Matveev, V P Neznamov, Yu Ts Ogannessian, V A Rubakov, G N Rykovanov, A M Sergeev, A N Skrinsky, Yu A Trutnev, V E Fortov, I A Shcherbakov

1031

Physics news on the Internet (based on electronic preprints)

Yu N Eroshenko

1033