1,323 research outputs found

    Development of laboratory information management system

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    Results of the actual direction of work of Scientific Research Institute of HV on development of the program complex LIS/LIMS «Chemist - analysts» for automatization of activity of analytical laboratories are presented. Functions of the complex and methodological principles of its development are considered, comparison with foreign analogues is carried out. The model of the industrial analytical control with use of concepts of a life cycle of a laboratory, technique and test is described

    Theory of magnetoelastic resonance in a mono-axial chiral helimagnet

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    We study magnetoelastic resonance phenomena in a mono-axial chiral helimagnet belonging to hexagonal crystal class. By computing the spectrum of coupled elastic wave and spin wave, it is demonstrated how hybridization occurs depending on their chirality. Specific features of the magnetoelastic resonance are discussed for the conical phase and the soliton lattice phase stabilized in the mono-axial chiral helimagnet. The former phase exhibits appreciable non-reciprocity of the spectrum, the latter is characterized by a multi-resonance behavior. We propose that the non-reciprocal spin wave around the forced-ferromagnetic state has potential capability to convert the linearly polarized elastic wave to circularly polarized one with the chirality opposite to the spin wave chirality.Comment: 12 pages, 5 figures, Accepted in Phys. Rev.

    Ecological education: problems and solutions

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    Among the main tasks we should point out the creation of systematic ecological education and public informing about the environment, the influence on it from the side of different subjects and methods of their improvement in. Nowadays ecology is a discipline that unites humanitarian and natural sciences and helps to form the general model of relations between nature, society and from another side it defines the sense and development perspectives for all humanity. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/831

    What makes minority ethnic teachers stay in teaching, or leave?

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    This briefing note considers the findings of the BA/Leverhulme-funded research project ‘Retention of teachers from minority ethnic groups in disadvantaged schools’ on the retention factors for teachers from minority ethnic groups and outlines some implications for schools. There is a gap between the proportion of teachers and students from ethnic minority backgrounds in England. In 2019, 86% of all teachers were from a White British background, compared to 65% of pupils (UK Government, 2020). While efforts to recruit new teachers from minority ethnic backgrounds are important, these alone will not resolve the shortage. Nationally, retention is lower for minority ethnic teachers than for White British teachers (DfE, 2018). Understanding the retention of minority ethnic teachers is vital in addressing the imbalance between the proportion of teachers and pupils from minority ethnic backgrounds in teaching. The findings are based on interviews with 24 teachers, including 14 Black teachers, two mixed White and Black heritage teachers and eight teachers from different Asian backgrounds. Thirteen of these teachers were in the profession for over five years and nine for five or less years. Nine participants worked in primary and 15 in secondary schools (for details see Tereshchenko et al., 2020). Some of the factors affecting minority ethnic teacher retention are the same as those affecting teachers of majority background. Unsurprisingly, teachers are happiest in those schools where they feel valued, respected, have autonomy, connection with, and support from, colleagues and senior leaders, and clear paths for career progression. Our research has shown that some experiences affecting retention apply specifically to minority ethnic teachers

    Improving the retention of minority ethnic teachers in England. Policy Briefing from the Centre for Teachers & Teaching Research

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    Despite the ongoing policy commitment to diversification of the teaching workforce (DfE, 2018a), a gap persists between the proportion of students and teachers from minority ethnic groups in England. Figures from 2019 show that 85.6% of all teachers and 65.4% of pupils are currently from a White British background; in comparison, 78.5% of the working age population of England were recorded as White British in the 2011 census (UK Government, 2020). Efforts to recruit new teachers from minority ethnic groups are important but these alone will not solve shortages. Nationally, retention is lower for minority ethnic teachers than for White British teachers (DfE, 2018b). Teachers from minority ethnic groups also experience unique problems linked to racial inequality and racism in their careers (Haque & Elliott, 2017). Yet, there has been little empirical investigation of how the ethnic character of the English teaching workforce has changed over time, where minority ethnic teachers tend to be employed, and what happens to these teachers once they are employed that causes lower retention

    AUTOMATED COMPUTER SYSTEM FOR INTERACTIVE COMMUNICATION WITH А DRIVER

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    The electronic system which serves for the convenience of driving and improve neut of traffic safety has been regarded. Innovative development of an integrated system of voice control with the possibility of interactive communication and the function of preventing from falling asleep has been given

    Conductance oscillations and zero-bias anomaly in a single superconducting junction to a three-dimensional Bi2Te3Bi_2Te_3 topological insulator

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    We experimentally investigate Andreev transport through a single junction between an s-wave indium superconductor and a thick film of a three-dimensional Bi2Te3Bi_2Te_3 topological insulator. We study Bi2Te3Bi_2Te_3 samples with different bulk and surface characteristics, where the presence of a topological surface state is confirmed by direct ARPES measurements. All the junctions demonstrate Andreev transport within the superconducting gap. For junctions with transparent InBi2Te3In-Bi_2Te_3 interfaces we find a number of nearly periodic conductance oscillations, which are accompanied by zero-bias conductance anomaly. Both effects disappear above the superconducting transition or for resistive junctions. We propose a consistent interpretation of both effects as originating from proximity-induced superconducting correlations within the Bi2Te3Bi_2Te_3 topological surface state

    Development and industrial testing of cased glass compositions for crystal products

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    On the basis of fusibility coefficient calculation, study of temperature coefficient of linear expansion and crystallization ability optimized compositions for synthesis of cased glass with completely removed PbO, what lowers material costs, improves working conditions and reduces emissions of lead compounds in the production of overhead crystal products were developed. Simultaneously, the problem of waste products utilization was solved

    Asymptomatic elevation of serum aminotransferase activity: stages of diagnostic search

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    The aim of review. To present algorithm of stepwise clinical and laboratoric testing of patients with long-term asymptomatic elevation of serum aminotransferase activity.Key points. According to epidemiologic data, 10–20% of adult population of the developed countries has increased activity of aminotransferases. The majority of such patients present either no health-related complaints at all, or nonspecific symptoms. Data of common clinical examination and routine laboratory and instrumental tests frequently do not allow to determine satisfactory diagnostic hypothesis. The situation is even more complicated by the absence of domestic practical guidelines on management of these patients. Article presents the algorithm of clinical, laboratory and instrumental testing in described clinical situation. The algorithm is based on the analysis of consensus documents, original studies, experts opinions and authors’ experience.Conclusion. Differential diagnostics at long-term asymptomatic elevation of serum aminotransferase activity should be carried out by step-wise algorithm at which diagnostic search is directed from the most common to more rare possible nosological units

    Executive Summary: Young people, education, employment and ESOL

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    The report, ‘Young people, education, employment and ESOL’ reviewed 47 studies1 to examine how current ESOL provision2 meets the needs of young people aged 16-25 years who use English as an Additional Language (EAL)3, and who need time and support to develop their English language skills in order to progress in education, training and employment
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