GRAVITATION, ASTROPHYSICS
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Deviation of an expanding universe that is isotropic in the mean from the Friedmann universe
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421
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NUCLEI, PARTICLES AND THEIR INTERACTIONS
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Pair production by a periodic electric field
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427
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A possibility of employing the shadow effect for studying the decay of quasistationary states
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433
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ATOMS, SPECTRA, RADIATION
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Term intersection in multiparticle interactions
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435
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Passage of weak Gaussian beam through a nonlinear medium
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439
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Kinetics of nonequilibrium dissociation of molecules in cascade excitation of oscillations by laser radiation
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443
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Direct observation of the picosecond structure of radiation pulses from a mode-locked neodymium laser
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449
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Dips in emission lines of preliminarily polarized molecular (atomic) beams
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454
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Perturbation theory with allowance for exchange forces
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459
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Angular distribution of photoelectrons with a given spin orientation
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463
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Alteration of atomic multiplet in an intense varying field
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470
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Dependence of fluorescence characteristics on the spectral distribution of the intensity of the exciting electromagnetic field
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476
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PLASMA, GASES
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Interaction between an intense electromagnetic wave and a plasma
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482
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Intensity of stimulated Mandel'shtam-Brillouin scattering in a plasma
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490
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Instability of waveguides and solitons in nonlinear media
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494
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Alignment of excited atoms in a gas discharge
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501
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SOLIDS, LIQUIDS
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Study of phase transitions in KD2PO4 single crystals by the acoustic magnetic resonance technique
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506
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Phase modulation of Mössbauer spectra and the generation of ultrasound in metals by a radio-frequency field
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509
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Absorption and dispersion of ultrasound and hypersound in glycerine
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515
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Nonlinear acoustic effects in superconductors
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517
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Effect of high hydrostatic pressure and residual strain on the superconductivity of Nb-Al-Ge alloys with an A15-type structure
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525
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Effect of magnetic breakdown on the Hall effect in beryllium
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533
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Antiferromagnetic resonance in layered CoCl2 and NiCI2 crystals
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538
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Effect of the multivalley structure of the conduction band on helical instability in the electron-hole plasma of silicon
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542
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Contribution to the statistical thermodynamics of fusion of long heteropolymer chains
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545
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Stability of nonequilibrium Fermi distributions with respect to Cooper pairing
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550
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Attainable overheating of liquid argon
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557
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Specific heat of the antiferromagnetic garnet Ca3Mn2Ge3O12
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561
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Effect of donor-donor and donor-acceptor interactions on the decay kinetics of the metastable state of Nd3+ in crystals
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565
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Investigation of the electronic mechanism of the isomorphic phase transition in cerium
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573
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Effect of anomalies of the energy spectrum on relaxation phenomena in helium II
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582
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Effect of the low-frequency peaks of the phonon state density on the critical temperature of superconductors
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587
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Proton relaxation in dilute rare-earth ethyl sulfates
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593
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Mobility of positive ions in He3-He4 solutions
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597
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Scaling relation for phase transitions in a one-dimensional x-y model
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600
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Temperature dependence of the probability for scattering of charge carriers in molybdenum and tungsten
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604
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Exciton-magnon absorption of light in antiferromagnetic siderite
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608
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Diffusion of magnetization in a Heisenberg ferromagnet above the Curie point
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613
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Kinetics of a quantum particle in a one-dimensional random potential
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620
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Isotopic equilibrium in a hydrogen plus alkali-metal hydroxide system
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628
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Suppression of inelastic channels under hyperfine splitting conditions. lnterference phenomena
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630
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Inhomogeneous state and the anisotropy of the upper critical field in layered superconductors with Josephson layer interaction
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634
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