Giant oscillations of energy levels in mesoscopic superconductors

The interplay of geometrical and Andreev quantization in mesoscopic superconductors leads to giant mesoscopic oscillations of energy levels as functions of the Fermi momentum and/or sample size. Quantization rules are formulated for closed quasiparticle trajectories in the presence of normal scattering at the sample boundaries. Two generic examples of mesoscopic systems are studied: (i) one dimensional Andreev states in a quantum box, (ii) a single vortex in a mesoscopic cylinder.Comment: 4 pages, 3 figure

Features of Linguistic and Cultural Type “Bureaucrat”: Compatibility of Adjective <i>bureaucratic</i>

The article is devoted to the analysis of the linguistic and cultural type “Russian bureaucrat”. The compatibility of the adjective bureaucratic is investigated according to the texts of the XIX - XXI centuries included in the National corpus of the Russian language. The novelty of the study is that to describe the character traits of the linguocultural type “Russian bureaucrat”, the authors refer to the compatibility of an adjective derived from the character type. It is noted that the connotative component in the meaning of the adjective determines an almost exclusively negative interpretation of the image: the pejorative component of the value determines the compatibility of the studied adjective with the designations of negative qualities. The authors dwell on the ideas that have developed in the Russian linguistic consciousness about the character of the Russian bureaucrat, and trace their transformations over two centuries. The analysis of the compatibility of the adjective showed that the linguistic and cultural character “Russian bureaucrat” is characterized by indifference, ignorance, cowardice, arrogance, insincerity. The authors of the article conclude that in the Russian language picture of the world indifference and cowardice are attributed to bureaucrats of different periods of Russian history, while ostentatious arrogance is noted mainly in the descriptions of officials of the past, and markers of ignorance and insincerity are more frequent in the characteristics of modern officials

Increase professional skills of teachers of higher professional institutions in the field of physical culture

The teaching of physical culture at the University requires the teacher not only ownership of professional knowledge, abilities and skills, high physical and technical preparednessПреподавание физической культуры в вузе требует от преподавателя не только владения профессиональными знаниями, умениями и навыками, высокой физической и технической подготовленность

Social and medical aspects longevity

The article deals with the demographical problem's population aging, life expectancy, premature aging, are shown results on quality of life in countries in relation to different indexes, that form itye

‘World Will Never Be Same’: Phraseologisms during Coronavirus Pandemic

Issues related to the semantics, structure and functions of new super-word linguistic units that have come into active use during the coronavirus pandemic are considered. Particular attention is paid to the statistics of searching the Internet for a certain phrase for a month and specific digital indicators of its existence as a stable one. The novelty of the research is seen in the fact that identifies phraseologisms of the late XX — early XXI centuries, which need a full-fledged phraseographic description (origin, semantics, examples of use). Phrasemes are combined by the authors into thematic groups: 1) remote work and study, 2) administrative measures to combat coronavirus, 3) features of a new disease and its treatment. It is shown that in the texts of mass communication Phrasemes perform nominative, communicative and pragmatic functions. Investigating stable turnovers, the authors dwell upon their structure, which is represented by three models. It is noted that the result of the work will be a dictionary of phraseological neologisms, which, along with others, will include units that appeared during the coronavirus pandemic

Analysis of fundamental parameters for V477 Lyr

We analyze the photometric and spectroscopic observations of the young pre-cataclysmic variable (pre-CV) V477 Lyr. The masses of both binary components have been corrected by analyzing their radial velocity curves. We show that agreement between the theoretical and observed light curves of the object is possible for several sets of its physical parameters corresponding to the chosen temperature of the primary component. The final parameters of V477 Lyr have been established by comparing observational data with evolutionary tracks for planetary nebula nuclei. The derived effective temperature of the O subdwarf is higher than that estimated by analyzing the object's ultraviolet spectra by more than 10000 K. This is in agreement with the analogous results obtained previously for the young pre-CVs V664 Cas and UU Sge. The secondary component of V477 Lyr has been proven to have a more than 25-fold luminosity excess compared to main-sequence stars of similar mass. Comparison of the physical parameters for the cool stars in young pre-CVs indicates that their luminosities do not correlate with the masses of the objects. The observed luminosity excesses in such stars show a close correlation with the post-common-envelope lifetime of the systems and should be investigated within the framework of the theory of their relaxation to the state of main-sequence stars. © 2008 Pleiades Publishing, Ltd

AB0-incompatibility of mother and fetus: the role of anti-glycan alloantibodies in the hemolytic disease of newborns

The mother and fetus incompatibility due to Rh-factor, blood group or other blood factors can lead to hemolytic disease of the fetus and newborn (HDN). HDN is a clinical disease condition of the fetus and newborn as a result of hemolysis, when maternal IgG alloantibodies cross the placenta and destroy the red blood cells of the fetus and newborn. The child disease begins in utero and can dramatically increase immediately after birth. As a result, hyperbilirubinemia and anemia develop, that can lead to abortions, serious complications, or death of the neonates in the absence of proper therapy. The range of HDN has changed significantly now compared to previous decades. Half a century ago, HDN was considered an almost complete synonym of RhD-alloimmunization, and this was a frequent problem for newborns. By now due to the high effective of Rh-conflict prevention, immunological AB0-conflicts have become the most common cause of HDN. The review aimes to one of the main causes of jaundice and anemia in neonates at present, i.e. HDN due to immunological AB0-conflict of mother and newborn (AB0-HDN). The main participants of the AВ0- incompatibility mother and child are considered, namely A- and B-glycans, as well as the corresponding anti-glycan alloantibodies. Close attention is paid to the structure features of glycan alloantigens on the red blood cells of the fetus and adult. The possible correlation of the frequency and severity of HDN with the blood group of mother and child, as well as with the titer of maternal alloantibodies, has been considered. The influence of immunoglobulin G subclasses on the AB0-HDN development has been evaluated. In most cases, AB0-HDN appear when the mother has the blood group 0, and the fetus has the group A (subgroup A1) or the group B. Other rare incidences of AB0-incompatibility with severe course are occurred. As a whole the etiology of AB0-HDN is complex and the HDN severity is influenced by many factors. The authors have analyzed statistical data, as well as the prevalence of AB0-incompatibility and AB0-HDN in various regions of the world. Current approaches to the diagnosis of AB0-HDN are discussed in addition. By now the problems of AB0- HDN occurrence and developing of ways to overcome this disease remain relevant

Screening and Characterization of the Antagonistic Properties of Microorganisms Isolated From Natural Sources

BACKGROUND: Human infectious diseases caused by antibiotic-resistant bacterial pathogens present a serious problem for clinical medicine. Causative agents of nosocomial infections, such as Escherichia coli, Klebsiella pneumoniae, Enterobacter spp., are the most common among them. An active search for antimicrobial agents that can effectively combat drugresistant pathogens is underway. Antimicrobial substances of bacterial origin are of particular interest. Promising sources of microorganisms with antibiotic properties are natural sources: Soil, water, plants, etc. AIM: The purpose of this work is to screen and characterize the antagonistic properties of microorganisms isolated from natural sources in connection with the creation of new pharmaceutical substances. METHODS: The material for the isolation of microorganisms was the soil, water bodies, and plant objects of various municipal districts of the Kemerovo Region. Identification of the isolated microorganisms was carried out using the methods proposed in the directory “Bergey’s Manual of Determinative Bacteriology” and in the monograph Nesterenko et al. The selection of strains from soil samples was carried out according to standard methods described in “Methods of soil microbiological control. Methodical recommendations,” cultural-morphological properties of isolates were studied using conventional microbiological methods. RESULTS: The following results are obtained: (1) Lactic acid bacteria and other microorganisms antagonists from natural sources were isolated: Soil, water bodies, and plant objects; 20 isolates were isolated, their cultural and morphological properties were studied; isolated microorganisms were found to belong presumably to the genera Bacillus, Leuconostoc, Pedio-coccus, Lactobacillus, and Bacteroides; (2) Antimicrobial properties of lactic acid bacteria and other antagonistic microorganisms isolated from natural sources on solid and liquid nutrient media were studied; (3) 12 strains of 20 isolates with maximum antimicrobial properties were selected for further studies. CONCLUSION: Further research on the biochemical properties of lactic acid bacteria and other antagonist microorganisms isolated from natural sources, the study of antibiotic resistance of lactic acid bacteria and other antagonist microorganisms isolated from natural sources, as well as other more detailed studies will be conducted with selected 12 strains with maximum antimicrobial properties