Reviews of topical problems

Ch. Grojean “New approaches to electroweak symmetry breaking” Phys. Usp. 50 1–35 (2007)

A.B. Shvartsburg “Tunneling of electromagnetic waves: paradoxes and prospects” Phys. Usp. 50 37–51 (2007)

Instruments and methods of investigation

N.M. Blashenkov, G.Ya. Lavrent’ev “Surface-ionization field mass-spectrometry studies of nonequilibrium surface ionization” Phys. Usp. 50 53–78 (2007)

From the current literature

F.I. Ataullakhanov, E.S. Lobanova, O.L. Morozova, E.E. Shnol’, E.A. Ermakova, A.A. Butylin, A.N. Zaikin “Intricate regimes of propagation of an excitation and self-organization in the blood clotting model” Phys. Usp. 50 79–94 (2007)

Methodological notes

V.I. Ritus “On the difference between Wigner’s and Møller’s approaches to the description of Thomas precession” Phys. Usp. 50 95–101 (2007)

Conferences and symposia

V.S. Beskin “School of modern astrophysics” Phys. Usp. 50 103–105 (2007)

Letters to the editors

L.P. Pitaevskii “Can a bubble in liquid helium contain half an electron?” Phys. Usp. 50 107–107 (2007)

Personalia

V.S. Vladimirov, S.S. Gershtein, V.G. Kadyshevskii, V.A. Matveev, V.A. Petrov, A.N. Tavkhelidze, N.E. Tyurin, D.V. Shirkov “Anatolii Alekseevich Logunov (on his eightieth birthday)” Phys. Usp. 50 109–110 (2007)

E.V. Zakharova “New books on physics and related sciences” Phys. Usp. 50 111–112 (2007)

Physics news on the internet

Yu.N. Eroshenko “Physics news on the Internet” Phys. Usp. 50 113–114 (2007)