Reviews of topical problems

V.Z. Kresin, Yu.N. Ovchinnikov “‘Giant’ strengthening of superconducting pairing in metallic nanoclusters: large enhancement of T_c and potential for room-temperature superconductivity” Phys. Usp. 51 427–435 (2008)

Yu.B. Bolkhovityanov, O.P. Pchelyakov “GaAs epitaxy on Si substrates: modern status of research and engineering” Phys. Usp. 51 437–456 (2008)

Methodological notes

A.A. Shatskii, I.D. Novikov, N.S. Kardashev “A dynamic model of the wormhole and the Multiverse model” Phys. Usp. 51 457–464 (2008)

B.Ya. Zel’dovich “Impedance and parametric excitation of oscillators” Phys. Usp. 51 465–484 (2008)

A.P. Vinogradov, A.V. Dorofeenko, S. Zouhdi “On the problem of the effective parameters of metamaterials” Phys. Usp. 51 485–492 (2008)

From the current literature

E.A. Kral’kina “Low-pressure radio-frequency inductive discharge and possibilities of optimizing inductive plasma sources” Phys. Usp. 51 493–512 (2008)

From the history of physics

L.B. Okun “The Einstein formula: E₀ = mc². “Isn’t the Lord laughing?”” Phys. Usp. 51 513–527 (2008)

Bibliography

E.V. Zakharova “New books on physics and related sciences” Phys. Usp. 51 529–531 (2008)

Physics news on the internet

Yu.N. Eroshenko “Physics news on the Internet (based on electronic preprints)” Phys. Usp. 51 533–534 (2008)