NUCLEI, PARTICLES, AND THEIR INTERACTION 
Polarization of relativistic photoelectrons

1085

Determination of the differences between the charge radii of zirconium nuclei using laserexcited resonance fluorescence

1089

Fractional topological charge, torons and breaking of discrete chiral symmetry in the supersymmetric O(3) σ model

1095

Chromoelectric string as a result of phase transition in nonabelian gauge field theory

1103

ATOMS, SPECTRA, RADIATION 
Quantum yield of the xray photoelectric effect in negative electron affinity emitters

1106

Theory of the polarization shift of quantum levels

1111

Coherent enhancement of backscattered radiation in a randomly inhomogeneous medium: the diffusion approximation

1117

Investigation of collisionless excitation of SF_{6} and NH_{3} molecules in an intense IR laser field by means of a tunable diode laser

1122

Effect of focusing on photon correlation in parametric light scattering

1131

PLASMA, GASES 
Threepulse hydrodynamic echo in an inhomogeneous plasmavacuum transition layer

1136

Excitation of sound by modulated electromagnetic waves in a dense semiinfinite nonisothermal plasma

1140

LIQUIDS 
Fluctuation theory of the smecticAcrystal phase transition

1144

Steadystate spin current in ^{3}HeB

1148

SOLIDS 
Inevitable symmetry lowering in a domain wall near a reordering phase transition

1153

A novel geometry for coherent magnetic breakdown in white tin

1158

Influence of boundary transparency on the critical current of "dirty" SS'S structures

1163

E. M. F. induced by entrainment current in a magnetic field

1169

Equilibrium between elasticallyinteracting phases

1173

Optical transitions between sheets of the adiabatic potential for the JahnTeller system ZnSe:Cr; vibronic interactions and local lattice dynamics

1184

Phonon hot spot in pure substances

1191

Dynamic damping of domain walls in weak ferromagnets

1201

Longlived photoconductivity of AIGaAs: distribution of electrons between free and bound metastable states

1210

Relaxation of the nuclear magnetization of amorphous ferromagnets

1215

Variation in the connectivity of the isoenergetic surfaces of Bi_{1x}Sb_{x} alloys under uniaxial compression

1220

Phase transitions in crystals with lowsymmetry point defects

1229

Resistive transition and critical fields of superconducting ceramics

1235

Exact solutions in the twodimensional wetting problem

1242

Creation of excess quasiparticles and nonequilibrium phase transition induced in superconductors by charged particles

1252

Dynamics of a Josephson fluxon in a long junction with inhomogeneities: theory and experiment

1256

Effect of dissipation on the characteristics of smallarea tunnel junctions: Application of the polaron model

1265

Nonlinear resonant absorption in glasses in the twodimensional case; spectral diffusion

1268

Inelastic tunneling across thin amorphous films

1276

Electronphonon interaction and topological features in the thermal emf of metals

1283

Interaction of antiferromagnetic resonance modes in DyFeO_{3} under spin reorientation conditions in a magnetic field

1291
