Q-dependent light scattering by electrons in LaB6

The inelastic light scattering by intraband electronic excitations in metallic lanthanum hexaboride has been studied in the temperature range of 10-300 K. General agreement has been obtained between the measured spectra and the spectra calculated within the band theory taking into account the renormalization of electron energies owing to electron-phonon scattering. The electron-phonon coupling constant λ and electron relaxation frequency Γ have been estimated. The dependence of the electron self-energies on the direction and magnitude of the wave vector has been revealed, implying the anisotropic electron-phonon interaction or the contribution from other electron scattering mechanisms. © 2013 Pleiades Publishing, Ltd

EVALUATION OF PSYCHOLOGICAL CHARACTERISTICS OF CHILDREN SUFFERING FROM RESPIRATORY TUBERCULOSIS AND RECEIVING ANTI-TUBERCULOSIS THERAPY

The study evaluated specific actual psychological status in 34 children at the age from 9 to 12 years old at various stages before the start of anti-tuberculosis therapy. Manifestations of asthenia were observed in the field of the task performance and cognitive function: reduction in the scope and accuracy of the active attention, low tempo of task performance, exhaustion, anergia of mnestic function. In the actual emotional state the expressed stress, high level of excitation and neurophysic stress and low energetic potential were observed. On the average in 8 months of anti-tuberculosis therapy significant changes were observed including both positive and negative shifts in the psychological state of the children. The obtained data provide the evidence on the integral nature of disorders caused by synergy of biological and psychosocial factors