The parallax distorsion via a weak microlensing effect

Parallax measurements allow distances to celestial objects to be determined. Coupled with measurement of their position on the celestial sphere, it gives a full three-dimensional picture of the location of the objects relative to the observer. The distortion of the parallax value of a remote source affected by a weak microlensing is considered. This means that the weak microlensing leads to distortion of the distance scale. It is shown that the distortions to appear may change strongly the parallax values in case they amount to several microseconds of arc. In particular, at this accuracy many measured values of the parallaxes must be negative.Comment: 34 LaTeX pages, 12 PostScript figure (epsfig.sty

Microarcsecond instability of the celestial reference frame

The fluctuation of the angular positions of reference extragalactic radio and optical sources under the influence of the irregular gravitational field of visible Galactic stars is considered. It is shown that these angular fluctuations range from a few up to hundreds of microarcseconds. This leads to a small rotation of the celestial reference frame. The nondiagonal coefficients of the rotation matrix are of the order of a microarcsecond. The temporal variation of these coefficients due to the proper motion of the foreground stars is of the order of one microsecond per 20 years. Therefore, the celestial reference frame can be considered inertial and homogeneous only to microarcsecond accuracy. Astrometric catalogues with microarcsecond accuracy will be unstable, and must be reestablished every 20 years.Comment: 5 pages, 2 figures, accepted to MNRA

Comparative study of electrophoretic deposition of doped BaCeO3-based films on La2NiO4+δ and La1.7Ba0.3NiO4+δ cathode substrates

This paper presents the results of a comparative study of methods to prevent the loss of barium during the formation of thin-film proton-conducting electrolyte BaCe0.89Gd0.1Cu0.01O3-δ (BCGCuO) on La2NiO4+δ-based (LNO) cathode substrates by electrophoretic deposition (EPD). Three different methods of the BCGCuO film coating were considered: the formation of the BCGCuO electrolyte film without (1) and with a protective BaCeO3 (BCO) film (2) on the LNO electrode substrate and the formation of the BCGCuO electrolyte film on a modified La1.7Ba0.3NiO4+δ (LBNO) cathode substrate (3). After the cyclic EPD in six stages, the resulting BCGCuO film (6 μm) (1) on the LNO substrate was completely dense, but the scanning electron microscope (SEM) analysis revealed the absence of barium in the film caused by its intensive diffusion into the substrate and evaporation during the sintering. The BCO layer prevented the barium loss in the BCGCuO film (2); however, the protective film possessed a porous island structure, which resulted in the deterioration of the film's conductivity. The use of the modified LBNO cathode also effectively prevented the loss of barium in the BCGCuO film (3). A BCGCuO film whose conductivity behavior most closely resembled that of the compacts was obtained by using this method which has strong potential for practical applications in solid oxide fuel cell (SOFC) technology. © 2019 by the authors.Government Council on Grants, Russian FederationFunding: This research was funded by the Government of the Russian Federation (Agreement 02.A03.21.0006, Act 211)

Evolution of the Bavarian dialect lexical system

The article deals with the specific features of the German language on the Bavarian dialect lexical level. The dialect is remarkable for its innovations and variety of linguistic forms on all levels of its system. The notion “Bavarian dialect” and its correlation with literary German language is being researched. The comparative analysis reveals the facts of deviation from the standards of the literary German language, especially in vocabulary and semantic

БИБЛИОТЕРАПИЯ КАК ЭФФЕКТИВНЫЙ МЕТОД РАБОТЫ С ДЕПРЕССИВНЫМИ СОСТОЯНИЯМИ

The article reveals the problem of depressive states of young students and its relevance today in the work of the psychological and pedagogical service of the university. Bibliotherapy is presented as one of the effective art-therapeutic methods in work with depressive states. Two directions of bibliotherapy on the degree of client involvement in the psychothe­rapeutic process are presented. The diagnostic and therapeutic potential of bibliotherapy is described. An attempt has been made to describe the use of bibliotherapy in working with depressive states of modern students.В статье раскрыта проблема депрессивных состояний учащейся молодежи и ее актуальность на сегодняшний день в работе психолого-педагогической службы вуза. Библиотерапия представлена, как один из эффективных арт-терапевтических методов в работе с депрессивными состояниями. Представлено два направления библиотерапии по степени включенности клиента в психотерапевтический процесс. Описан диагностический и терапевтический потенциал библиотерапии. Предпринята попытка описания использования библиотерапии в работе с деприссивными состояниями современной учащейся молодежи

DISTRIBUTION OF BRONCHOPULMONARY PATHOLOGY IN WORKERS OF ALUMINIUM PRODUCTION ELECTROLYSIS

Frequency of detection of pathology of respiratory organs in employees of SUAL Public corporation, the branch, of IrkAZ-SUAL, and clilicofunctional peculiarities of course of bronchopulmonary pathology in patients with toxicodust bronchitis, former employees of this enterprise, were studied. Conditions of work of electrolysis and. anode employees corresponded to the class 3.2, of smelter — to the class 3.1. It was determined that medium grave and grave course of chronic obstructive lungs disease and. chronic non-obstructive bronchitis in patients with toxicodust bronchitis, former employees of Irkutsk aluminium factory happened more often in employees of general occupations

Medico-social rationale for adaptation of regional drug supply systems to personalized pharmaceutical care for persons of different ages

In this study, we identified indicators of the state of personalized pharmaceutical care for target population groups at the regional level, in a model region, with the aim to develop a differentiated approach to such care. The rationale for the choice of Moscow Region as a model region is based on its specific socioeconomic indicators and a comparison of these with respective average Russian values. A need was shown to modernize patient-oriented pharmaceutical care, especially for certain population groups, such as children, women of working age (mothers), and the elderl

Preparation of alumina nanoparticle suspensions with narrow particle size distribution

Dynamic light scattering (DLS) was applied to the study of the process of the preparing deaggregated water suspensions of alumina nanopowders with specific surface areas of 20-140 m2/g. Nanopowders were prepared by the electric explosion of wire and laser evaporation and, according to electron microscopy (TEM), consisted of nonagglomerated spherical nanoparticles with lognormal size distribution. According to DLS, nonsedimenting water suspensions of alumina nanoparticles, stabilized by sodium citrate at a 5 mM concentration, contain substantial fraction of aggregates. The dynamics of the change in the mean average size of aggregates under exhaustive ultrasound treatment of suspensions with 10 g/l concentration for 1.5-4 h by two types of ultrasonic processors was studied. It was shown that the mean average size of aggregates exponentially diminishes by 1.5-2 times and the fraction of individual particles in suspension enlarges from 45 to 85%. Sequentially centrifuging the suspension at 18000 g separates the remaining aggregates and results in suspensions of individual alumina nanoparticles. Particle size distributions in these suspensions obtained by TEM and DLS are the same within experimental error. © 2013 Pleiades Publishing, Ltd

PROBLEMATICS OF ENTERPRISE DEVELOPMENT IN THE ECONOMY OF KNOWLEDGE BASED ON LOGISTIC APPROACH

The theoretical approach of the knowledge economy to the development of the strategy of industrial enterprises on the basis of the logistical methodology are covered. The definition of strategy and strategic planning for the knowledge economy is presented. The process of strategy development is characterized and the algorithm of strategic planning of an industrial enterprise is proposed taking into account the knowledge economy

Features of electrophoretic deposition of a ba-containing thin-film proton-conducting electrolyte on a porous cathode substrate

This paper presents the study of electrophoretic deposition (EPD) of a proton-conducting electrolyte of BaCe0.89Gd0.1Cu0.01O3-Δ (BCGCuO) on porous cathode substrates of LaNi0.6Fe0.4O3-Δ (LNFO) and La1.7Ba0.3NiO4+Δ (LBNO). EPD kinetics was studied in the process of deposition of both a LBNO sublayer on the porous LNFO substrate and a BCGCuO electrolyte layer. Addition of iodine was shown to significantly increase the deposited film weight and decrease the number of EPD cycles. During the deposition on the LNFO cathode, Ba preservation in the electrolyte layer after sintering at 1450 °C was achieved only with a film thickness greater than 20 μm. The presence of a thin LBNO sublayer (10 μm) did not have a pronounced effect on the preservation of Ba in the electrolyte layer. When using the bulk LBNO cathode substrate as a Ba source, Ba was retained in a nominal amount in the BCGCuO film with a thickness of 10 μm. The film obtained on the bulk LBNO substrate, being in composition close to the nominal composition of the BCGCuO electrolyte, possessed the highest electrical conductivity among the films deposited on the various cathode substrates. The technology developed is a base step in the adaptation of the EPD method for fabrication of cathode-supported Solid Oxide Fuel Cells (SOFCs) with dense barium-containing electrolyte films while maintaining their nominal composition and functional characteristics. © 2020 by the authors.This research received no external funding. This work was performed in the framework of the IEP UB RAS state assignment (EPD technology development) and the IHTE UB RAS budget task (SOFC technology development). The XRD and microstructure study was carried out using the equipment of the Shared Access Center "Composition of compounds" (Institute of High Temperature Electrochemistry, Ural Branch of the Russian Academy of Sciences, Yekaterinburg, Russia). The authors acknowledge Zhuravlev, V.D., the head of the Laboratory of chemistry of compounds of rare-earth elements (Institute of Solid State Chemistry, UBRAS,Yekaterinburg, Russia), Bogdanovich, N.M., scientific researcher of the Laboratory of solid oxide fuel cells (IHTE UB RAS), and Lyagaeva, J.G., senior scientific researcher of the Laboratory of Electrochemical Devices Based on Solid Oxide Proton Electrolytes (IHTE UB RAS) for the development of the synthesis methods used in this study