172 research outputs found

    Conceptualization of the experience of the individual in the educational space in the light of scientific rationality as a problem of professional identity in global and sociocultural dynamics

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    As a problem, professional identity associated with the educational space is investigated from the position of belonging to professional groups. The contradictory state of education in the modern world actualizes the problem of identity in the educational space from the perspective of classical modern European rationality with its focus on the scientific forms of cognition, knowledge. The current situation in the world educational space is developed in the ambiguity of the idea of the world, which is expressed in the crisis of universalism and cognitive integrity: the place of rational knowledge in culture is replaced by mythic ideas. The way of thinking exists independently of the individual. The transfer of thinking is a learning task. However, at the present stage, with a sharp increase in the amount of information reported, the emphasis is on formalizing of the educational process, rather than constructivizing. The teacher’s responsibility as a carrier of scientific rationality, which primarily defines the universal meaning of human activity in the transmission of social experience and knowledge, is growing. The level of education of a person is a measure of implementation of the possibility of his/her formation, taking into account the dichotomous nature of the individual's socialization and professional identity based on it. Such a holistic perception of the world will allow gaining a deep understanding of the essence of things, fitting science into the cultural context of modernity

    FEATURES OF HEMODYNAMICS OF LIVER AND HEART IN PATIENTS WITH VIRAL CIRRHOSIS

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    To study the peculiarities of hemodynamics of liver and heart Doppler echocardiography, duplex ultrasonography vascular screening in patients with viral cirrhosis were held. It was found that patients with viral cirrhosis have remodeling of viscerogenic hemodynamic, left ventricle myocardium with formation of various variants of its geometry. Disorder of heart ventricles relaxation, presence of moderate pulmonary hypertension are accompanied by more expressed portal hemodynamic disorders. Indices of viscerogenic hemodynamic correlate with geometric characteristics of heart ventricles and pulmonary artery, functional state of left ventricle and hemoglobin saturation with oxygen

    Mathematical model for the analysis of environmental risk factors

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    The article studies the economic consequences of harmful effects on the environment. A mathematical model has been developed for the analysis of environmental risk factors. When constructing a model, the probability of an insured event depending on time is taken into account. It is shown that different probabilistic impact models can be used for different categories of risk factors. The development of a dynamic model is based on the methods of probability theory, actuarial mathematics and, accordingly, on the, numerical methods and simulation methods. Analytical expressions for the risk factor integral value of environmental management are obtained in the work. The mathematical calculation of the distribution function, or the survival function before the time period occurrence of an insured event in different cases is performed, namely: in the case of a risk factor with a constant intensity, in the case of gradually emerging risk factors with their constant intensities, in the case when the survival function is decreasing at a linear rate, as well as in the case when equipment wear and tear leads to an exponential increase in the risk intensity

    PULMONARY HYPERTENSION IN PATIENTS WITH VIRAL CIRRHOSIS

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    To study the peculiarities of the formation of pulmonary hypertension in patients with viral cirrhosis we carried out tissue Doppler echocardiography, Doppler echocardiography, duplex vascular scanning, research of respiratory function in patients with viral cirrhosis. It was found that pulmonary hypertension in patients with viral cirrhosis was a frequent complication (38 %) and is often moderate. An acceleration of blood flow and dilation of the portal and splenic veins, disturbed longitudinal systolic function of the right ventricle and its relaxation as well as decrease of the respiratory function by the restrictive type are registered in patients with pulmonary hypertension

    Observation of time quasicrystal and its transition to superfluid time crystal

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    We report experimental realization of a quantum time quasicrystal, and its transformation to a quantum time crystal. We study Bose-Einstein condensation of magnons, associated with coherent spin precession, created in a flexible trap in superfluid 3^3He-B. Under a periodic drive with an oscillating magnetic field, the coherent spin precession is stabilized at a frequency smaller than that of the drive, demonstrating spontaneous breaking of discrete time translation symmetry. The induced precession frequency is incommensurate with the drive, and hence the obtained state is a time quasicrystal. When the drive is turned off, the self-sustained coherent precession lives a macroscopically-long time, now representing a time crystal with broken symmetry with respect to continuous time translations. Additionally, the magnon condensate manifests spin superfluidity, justifying calling the obtained state a time supersolid or a time super-crystal

    PROVENANCE AND AGE CONSTRAINTS OF THE RIPHEAN SANDSTONES FROM THE IVANOVSKY GRABEN (THE KOLA PENINSULA) BASED ON THE U-Pb LA-ICP-MS DATING AND RAMAN SPECTROSCOPY OF DETRITAL ZIRCON

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    The results of U-Pb LA-ICP-MS dating of 150 detrital zircon grains from the Precambrian (Riphean?) sandstones of the Kildin group on the coast of the Ivanovka Bay (northeastern Kola Peninsula) are presented. A group of three youngest grains yielded constraint on the sandstone maximum depositional age of 1179±45 Ma. Detrital zircon age distribution is dominated by three maximums of 1.9, 2.4 and 2.7 Ga. The authors consider two complementary scenarios of interpretation of the data obtained. The first scenario involves the contribution of distant provenance out of granitoids in the Lapland-Kola orogen (~1.9 Ga) and adjacent areas of the Kola-Karelia region (~2.7 Ga), Imandra-Varzuga structure (~2.4 Ga), and Sveconorwegian belt (~1.2 Ga); the off-Baltic (Greenland?) sources of the detrital zircon also cannot be excluded. According to the second scenario, the Ivanovsky graben received zircons also from the proximal sources – sialic complexes formed upon melting of granite-gneiss substratum of the upper crust of the Murmansk craton during largescale episodic mafic magmatism 1.86, 2.50 and 2.68 Ga. The Raman spectroscopy showed that about 25 % of the analyzed detrital zircon grains experienced a 1.4-Ga-old thermal effect which did not lead to Pb losses but partially restored the crystalline structure of zircon. This result can be used as an additional constraint in the detailed provenance analysis of the northeastern East European Platform sedimentary basins and is indicative of 1.4-Ga-old large-scale magmatic events related to the breakup of the supercontinent Nuna

    Magnetic Phase Separation and Magnetic Moment Alignment in Ordered Alloys FE 65

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    The structure and the magnetic state of ordered Fe65Al35-xMx (Mx = Ga, B; x = 0; 5 at.%) alloys are investigated using X-ray diffraction, Mössbauer spectroscopy, and magnetic measurements. The behavior of the magnetic characteristics and Mössbauer spectra of the binary alloy Fe65Al35 and the ternary alloy with gallium addition Fe65Al30Ga5 is explained in terms of the phase separation into two magnetic phases: a ferromagnetic one and a spin density wave. It is shown that the addition of boron to the initial binary alloy Fe65Al35 results in the ferromagnetic behavior of the ternary alloy

    Medical professional image in the social media by Muscovites: managerial and methodological aspects

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    The article presents a comparative study of social perception of a medical professional in the mass consciousness using social media monitoring and telephone survey. The aim of the study is to develop methodological recommendations for analysis and information policy on the formation of the medical professional image in the mass consciousness. The basis of the study is a sample of posts published by Muscovites in social media containing keywords associated with physician and nurses. In addition, another survey on people’s associations with these professions was conducted in order to compare the image in social media to the image held in the mass consciousness. The authors manually coded subsample of the respondents’ posts and articles from social media. The authors’ Python code was additionally used to analyse figures and lemmas. The study has allowed to describe the main elements of the specialists’ image among the population, including the perception of “typical” physical characteristics for a health care worker, professional and personal qualities, and the relationship between the image of a physician and a nurse, where the former usually has a higher status than the latter. The study has revealed similar characteristics, but their different quantitative representation in the survey and analysis of social media, which has allowed to recommend social media analysis for performing qualitative analysis of the population’s opinions. At the same time, quantitative monitoring of the image in the online environment is also seen as useful due to the significant influence of social media on the formation of opinions in the mass consciousness. Such monitoring may be used as a way to get feedback within the framework of the image formation management process

    Innovation supporting course eco-caltural orientation for students of pedagogic profiles of university

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    The article deals with the problem of formation of ecological culture at students of pedagogical training areas at the university. Reveals the conceptual approaches and didactic principles of supporting eco-cultural orientation coursesВ статье рассматриваются проблемы формирования экологической культуры у студентов педагогических направлений подготовки в вузе. Раскрываются концептуальные подходы и дидактические принципы построения поддерживающих курсов экокультурной направленност

    Stromal and Tumor Glioma-Derived Cells with Similar Characteristics have Differences in α-Smooth Muscle Actin Expression and Localization

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    Gliomas are solid brain tumors composed of tumor cells and recruited heterogenic stromal components. The study of the interactions between the perivascular niche and its surrounding cells is of great value in unraveling mechanisms of drug resistance in malignant gliomas. In this study, we isolated the stromal diploid cell population from oligodendroglioma and a mixed population of tumor aneuploid and stromal diploid cells from astrocytoma specimens. The stromal cells expressed neural stem/progenitor and mesenchymal markers showing the same discordant phenotype that is typical for glioma cells. Moreover, some of the stromal cells expressed CD133. For the first time, we demonstrated that this type of stromal cells had the typical myofibroblastic phenotype as the α-SMA+ cells formed α-SMA fibers and exhibited the specific function to deposit extracellular matrix (ECM) proteins at least in vitro. Immunofluorescent analysis showed diffuse or focal α-SMA staining in the cytoplasm of the astrocytoma-derived, A172, T98G, and U251MG glioma cells. We could suggest that α-SMA may be one of the main molecules, bearing protective functions. Possible mechanisms and consequences of α-SMA disruptions in gliomas are discussed
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