GEOCHRONOLOGY AND SR-ND ISOTOPE GEOCHEMISTRY OF LATE PALEOZOIC COLLISIONAL GRANITOIDS OF UNDINSKY COMPLEX (EASTERN TRANSBAIKAL REGION)

There are several geodynamic models of the Central Asian Orogenic Belt (CAOB) development [Şengör et al., 1993, Zorin, 1999; Parfenov et al., 1999, 2003; Willem et al., 2012; and others]. The Mongol-Okhotsk Orogenic Belt (MOB) represents important part of CAOB. All geodymanic models of Late Riphean to Paleozoic structures of CAOB emphasize significance of subduction processes along Northern Asian craton margin at that time. Collage of CAOB terrains formed as a result of accretion of island arc, accretionary wedge, turbidite, and continental margin terrains to the Siberian paleocontinent.There are several geodynamic models of the Central Asian Orogenic Belt (CAOB) development [Şengör et al., 1993, Zorin, 1999; Parfenov et al., 1999, 2003; Willem et al., 2012; and others]. The Mongol-Okhotsk Orogenic Belt (MOB) represents important part of CAOB. All geodymanic models of Late Riphean to Paleozoic structures of CAOB emphasize significance of subduction processes along Northern Asian craton margin at that time. Collage of CAOB terrains formed as a result of accretion of island arc, accretionary wedge, turbidite, and continental margin terrains to the Siberian paleocontinent

Methods of the determination of inorganic arsenic species by stripping voltammetry in weakly alkaline media

Two methods are considered for the direct determination of trace amounts of As(III) and As(V) in solutions by stripping voltammetry (SVA) using an ensemble of gold microelectrodes (Au-MEA) previously developed by the authors of this paper. In both methods, analyzing a mixture of As(III) and As(V), analysts first record an SVA signal of As(III) in a supporting Na2SO3 electrolyte. To record an analytical SVA signal of As(V), in the first method one should use the reduction of As(V) to As(III) on the surface of an Au-MEA catalyzed by the system Mn(II)/Mn(0) and followed by the formation of As(0) and its anode dissolution. In the second method, the photoreduction of As(V) to As(III) in a Na2SO3 solution is conducted under UV irradiation followed by the reduction of As(III) to As(0) and its electrooxidation on Au-MEA. The two methods are compared taking into account their performance characteristics and interfering ions. To improve the reliability of the results of analysis at an insignificant increase in its cost, we propose the consecutive use of both methods. The procedures are simple and rapid, do not require the removal of dissolved oxygen or toxic reactants, and can be used for the analysis of aqueous solutions at the place of sampling. The results of analyses of real objects, snow, river water, and process solutions are presented

GEOCHEMISTRY AND ORIGIN OF THE EASTERN SAYAN OPHIOLITES, TUVA-MONGOLIAN MICROCONTINENT (SOUTHERN SIBERIA)

The Eastern Sayan ophiolites (1020 Ma) of the Tuva-Mongolian microcontinent are believed to be the most ancient ophiolite of the Central Asian Orogenic Belt [Khain et al., 2002].The Eastern Sayan ophiolites (1020 Ma) of the Tuva-Mongolian microcontinent are believed to be the most ancient ophiolite of the Central Asian Orogenic Belt [Khain et al., 2002]

THE SIGNIFICANCE OF C‑REACTIVE PROTEIN IN SYSTEMIC LUPUS ERYTHEMATOSUS

It is believed that the concentration of C‑reactive protein (CRP) significantly increases in acute forms of systemic lupus erythematosus (SLE). A moderate increase of CRP levels in patients with stable disease progression reflects the low‑grade chronic inflammation in the vascular wall and the development of subclinical atherosclerosis. The article presents data showing that increased CRP levels in SLE patients is not statistically related with disease activity and cardiovascular risk as well as the level of interleykin‑6. Patients with lupus nephritis have lower CRP concentration compared to patients without renal disease and CRP concentration depends on proteinuria and hypoalbuminemia.</p

Digitalization of the Educational Environment: Risk Assessment of Distance Education by Russian and Vietnamese Students

The digitalization of higher education is a long-term trend that gained a new impetus for further development because of the forced transition to distance learning during the COVID-19 pandemic. The aim of the article is to analyze the impact of digital transformation on the educational process in universities and to describe the risks through the students’ eyes. The analysis is based on the results of a survey conducted by the authors in 2020 among students of two universities - Moscow State Institute of International Relations (MGIMO) and the Institute of the Trade Union Movement of the General Confederation of Labor of Vietnam (IPLV).The article describes the methodology of the online survey. The attitude towards distance learning is interpreted as a three-level attitude with emotional, cognitive and behavioral aspects. It is suggested that students’ readiness to switch to distance learning is determined by a set of macro and micro factors. Among the macro factors are the national specifics of the educational system, traditions in the field of higher education, infrastructure, the national educational policy, and the mobilization potential of the population. Among the micro factors are the cognitive and other psychological characteristics of the students, the socio-psychological openness to innovation.According to the survey results, there is certain similarity in the way Russian and Vietnamese students assess their experience of distance learning. At the same time, significant differences in the perception of the outcome of the digital transformation of education have been revealed. For MGIMO students, major risks are associated with dehumanization, the severing of social ties, and the possible loss of student status. For Vietnamese students the most significant risks are mainly associated with the fears of the decreasing quality of education. It is therefore concluded that distance learning is both the field of opportunities and possible source of individual and institutional risks

Demes:A standard format for demographic models

Understanding the demographic history of populations is a key goal in population genetics, and with improving methods and data, ever more complex models are being proposed and tested. Demographic models of current interest typically consist of a set of discrete populations, their sizes and growth rates, and continuous and pulse migrations between those populations over a number of epochs, which can require dozens of parameters to fully describe. There is currently no standard format to define such models, significantly hampering progress in the field. In particular, the important task of translating the model descriptions in published work into input suitable for population genetic simulators is labor intensive and error prone. We propose the Demes data model and file format, built on widely used technologies, to alleviate these issues. Demes provide a well-defined and unambiguous model of populations and their properties that is straightforward to implement in software, and a text file format that is designed for simplicity and clarity. We provide thoroughly tested implementations of Demes parsers in multiple languages including Python and C, and showcase initial support in several simulators and inference methods. An introduction to the file format and a detailed specification are available at https://popsim-consortium.github.io/demes-spec-docs/

From the academic motivation of students to quality of education

In article the academic motivation of students as pledge of quality medical education is considered. Results of a research on determination of the academic motivation at students of the 1st course of pediatric faculty of the Ural state medical university are given.В статье рассматривается академическая мотивация студентов как залог качественного медицинского образования. Приведены результаты исследования на определение академической мотивации и мотивации обучения в вузе у студентов 1-го курса педиатрического факультета Уральского государственного медицинского университета

Clinical-epidemiological features and improvement of botulism laboratory diagnos-102 tics in Irkutsk region

Irkutsk Region is one of the Russian Regions where botulism cases are registered yearly. Botulism morbidity in Irkutsk Region is analysed for the ten-year period (since 2002); its clinical-epidemiological features are revealed at the present stage. Sporadic cases of botulism, are dominated. (81,9 %). From. 2006 in Irkutsk Region botulism share makes 100 % in food poisoning number. A considerable role in the infection transmission plays consumption of fish, mainly smoked or salty Baikal omul (90,9 %). In 30 % of cases injured people purchased fish at private persons in unascertained trade places, 60 % of patients ate own salting fish. In Irkutsk Region botulism is registered more often from July till November with peaks in July (58,3 %) and. September (20,8 %) that is connected, with activation of unprofitable fabricated fish selling in combination, with adverse conditions of this foodstuff storage. Botulism affects various age groups of population with, prevalence of the age category 30-49 years old. (47,8 %). Socially active able-bodied population. (72,3 %) is most often affected that increases the social importance of the disease. Mainly, moderate severe (56, 5 %) and. severe (34,8 %) disease forms were registered. Primary symptoms include two variants - dyspeptically-paralytic and. ophthalmologic-neurological forms. Analysis of botulism etiological structure showed, that the leading part in the disease occurrence in Irkutsk Region belonged to botulinum. type Е (73, 9 %). Clinical material and. foodstuff testing to botulinum toxin presence was conducted in parallel by the standard reaction of biological toxin neutralisation in white mice and dot-immunoanalysis with application of the test system that we have developed. Possibility of dot-immunoassay application in laboratory diagnostics of botulism is estimated as the express method with high specificity, sensitivity and. simplicity

Sovladayushchy behaviour at students – first-year students of the Ural state medical university

The problem of psychological adaptability of students to conditions of medical school gains the practical importance and remains interesting to modern medical education. It is connected with new, to constantly changing situations educational and extracurricular activities of students and also with overcoming difficulties in development of future profession and a possibility of emergence of stressful situations. Results of a research of level of psychological adaptation and the choice of strategy of sovladayushchy behavior at students of the 1st course of pediatric faculty and students of specialty «Clinical Psychology» of the Ural state medical university are presented in article (Ekaterinburg).Проблема психологической адаптивности студентов к условиям медицинского вуза приобретает практическую значимость и остается интересной для современного медицинского образования. Связано это с новыми, постоянно изменяющимся ситуациям учебной и внеучебной деятельностью студентов, а также с преодолением трудностей в освоении будущей профессии и возможностью появления стрессовых ситуаций. В статье представлены результаты исследования уровня психологической адаптации и выбор стратегий совладающего поведения у обучающихся 1-го курса педиатрического факультета и студенты специальности «Клиническая психология» Уральского государственного медицинского университета (г. Екатеринбург)