Structural investigations of superconducting multilayers consisting of semiconducting materials

There are rather exotic semiconducting superlattices (SL) consisting of monochalcogenides of Pb, Sn and rare-earth metals which exhibit superconductivity at temperature as high as 6 K. Here we report the results of precision x-ray diffractometry and TEM investigations as well as Auger spectroscopy data obtained on some of the epitaxially grown superconducting semiconducting SLs. It is established that essential features of the SL structure determining the appearance of superconductivity are the perfect single-crystallinity of the samples and the presence of continuous dense grids of misfit dislocations on the interfaces between two semiconductors. The segregation of free Pb which was observed in some cases does not correlate, according to experimental data, with the appearance of superconductivity

Stability of critical behaviour of weakly disordered systems with respect to the replica symmetry breaking

A field-theoretic description of the critical behaviour of the weakly disordered systems is given. Directly, for three- and two-dimensional systems a renormalization analysis of the effective Hamiltonian of model with replica symmetry breaking (RSB) potentials is carried out in the two-loop approximation. For case with 1-step RSB the fixed points (FP's) corresponding to stability of the various types of critical behaviour are identified with the use of the Pade-Borel summation technique. Analysis of FP's has shown a stability of the critical behaviour of the weakly disordered systems with respect to RSB effects and realization of former scenario of disorder influence on critical behaviour.Comment: 10 pages, RevTeX. Version 3 adds the $\beta$ functions for arbitrary dimension of syste

Individualization of Training Using the Resources of International Digital Platforms

The article is devoted to the definition of psychological and pedagogical conditions and design methods of formation of a creatively thinking specialist using international digital platforms. The following universal abilities making up a specialist's competitiveness are defined: creativity, digital literacy, and psychological stability. The importance of tolerance for international innovation is shown. The state and directions of development of education digitalization are analyzed. Psychological and pedagogical conditions are revealed, and provisions of the concept of training individualization are defined. A set of measures are considered to facilitate the passage of students personal educational trajectory. The experience of organizing individual creative development in the digital space of the Union state is described. The introduction of the developed theoretical and methodological conceptual provisions of training individualization will provide conditions for improving the quality of vocational education and training for the implementation of innovative programs in the framework of international cooperation

Central sensitization inventory — A Russian version

© 2020, Media Sphera Publishing Group. All rights reserved. Objective. To develop and validate a Russian version of The Central Sensitization Inventory (CSI-R). Material and methods. The study included 3 stages: 1) direct and reverse translation, linguistic validation of the questionnaire; 2) assessment of internal consistency, reliability and sensitivity (n=50); 3) psychometric validation in the samples of patients with fibromyalgia syndrome (n=40), chronic widespread pain (n=40), regional chronic low back pain without other specific pain complaints (n=40), and in the control sample of informants with no pain complaints (n=40). Results and conclusion. The Russian version of CSI-R is valid, reliable and can be used in clinical practice as a diagnostic tool for revealing central sensitization. The study of the sensitivity of the questionnaire in patients during drug therapy proved its effective-ness in assessing the dynamics of the disease and the effect of therapy