Suchergebnisse

The purpose of this study is to develop and validate the evaluation indicators of teaching. The relevance of the present study is due to the problem of improving the quality of school education in the Russian Federation by means of renewal of the content of general education, provided by the RF State program "Development of Education for 2013-2020". The vectors of updating are determined by the tasks of transition to the democratic and constitutional state, the market economy, the need to overcome the dangers of the country lagging behind global trends of economic and social development and, what is the most important, by the growing influence of the human capital on the economy of the country. The aim of this study is to identify the level of readiness of teachers to implement innovative forms of educational activities into the educational process with the help of the analysis of the responses of mathematics teachers to reflexive questions. The presentation of lessons with innovative forms during the methodical workshop and the systematic analysis of the experimental data are the main technologies. As a result of the experimental study, conducted in 2015-2017 in the Kirov region with a group of 71 mathematics teachers we can present the experience of the implementation of innovative organization forms of educational process and summarize the results in the form of the subjective reflective assessment. The article justifies the high level of pedagogical readiness of mathematics teachers to introduce innovative forms of organization of educational activities such as: event-based learning, adaptive teaching, 'bring your own devices', computational thinking, and stealth assessment. © Authors.

2011 2nd International Conference on Advances in Energy Engineering, ICAEE 2011, Bangkok, 27-28 December 2011 ; 201812 bcrc ; Version of Record ; Published

Purpose: Drawing on the social exchange perspective, the authors explore the roles of satisfaction over material rewards, perceived organizational politics and career ambition in the relationship between harmonious workplace climate and employee altruistic behavior in the context of British public sector. Design/methodology/approach: The authors employed SPSS software to estimate ordinary least squares models to test their hypotheses by analyzing data from 161 supervisor–employee dyads from a UK local government. Findings: Satisfaction over material rewards mediates the relationship between harmonious workplace climate and employee altruistic behavior. Both perceived organizational politics and career ambition moderate the mediated effect of harmonious workplace climate on employee altruistic behavior via satisfaction over material rewards. Originality/value: This study advances the social exchange theory by showing that the norm of reciprocity (e.g. harmonious workplace climate in this study) may not be the only key driver of exchange for altruistic behavior among public sector workers. Still, it can be mediated by satisfaction with pay and promotion opportunities and may be conditional upon individuals' career ambition or their perceptions of organizational politics.

Background: Common variable immunodeficiency (CVID), the most prevalent form of primary immunodeficiency (PID), is characterized by hypogammaglobulinemia and recurrent infections. Understanding protein-protein interaction (PPI) networks of CVID genes and identifying candidate CVID genes are critical steps in facilitating the early diagnosis of CVID. Here, the aim was to investigate PPI networks of CVID genes and identify candidate CVID genes using computation techniques. Methods: Network density and biological distance were used to study PPI data for CVID and PID genes obtained from the STRING database. Gene expression data of patients with CVID were obtained from the Gene Expression Omnibus, and then Pearson's correlation coefficient, a PPI database, and Kyoto Encyclopedia of Genes and Genomes were used to identify candidate CVID genes. We then evaluated our predictions and identified differentially expressed CVID genes. Results: The majority of CVID genes are characterized by a high network density and small biological distance, whereas most PID genes are characterized by a low network density and large biological distance, indicating that CVID genes are more functionally similar to each other and closely interact with one other compared with PID genes. Subsequently, we identified 172 CVID candidate genes that have similar biological functions to known CVID genes, and eight genes were recently reported as CVID-related genes. MYC, a candidate gene, was down-regulated in CVID duodenal biopsies, but up-regulated in blood samples compared with levels in healthy controls. Conclusion: Our findings will aid in a better understanding of the complex of CVID genes, possibly further facilitating the early diagnosis of CVID.[Figure not available: see fulltext.]. © 2019, Higher Education Press and Springer-Verlag GmbH Germany, part of Springer Nature. ; This study was funded by the Act 211 Government of the Russian Federation (No. 02.A03.21.0006) and the IIP UB RAS project (No. AAAA-A18-118020590108-7).

Copyright © 2022 The Authors. Aluminium composites have been extensively developed for automotive applications due to their high specific strength. However, particle agglomeration, high porosity content, and weak reinforcement/matrix interface bond are prone to occur in the casting process. These arise during the introduction of the reinforcement, mould filling, and solidification process, especially when the particle sizes are approaching the nanoscale and are detrimental, with respect to the mechanical properties. By applying high pressure in conjunction with high cooling rates, an improved distribution of the reinforcing particles can be expected, as the high pressure improves the filling capacity of the composite melt, in which the fluidity is generally decreased by the added heterogeneous particles. The fine grain structure obtained under the high cooling rate is also beneficial for the distribution of the reinforcing nanoparticles during solidification. In this study, SiC nano-reinforced AlSi9Cu3 composites were developed by employing an Al–Cu-SiCnp master alloy, stir mixing, ultrasonication and HPDC technology. The findings showed a good distribution of individual SiC particles, resulting in a reduction of ∼40% in the α-Al grain size and near 10% increment in the yield strength, which was attributed to grain refinement, CTE strengthening and Orowan strengthening. Compared to commercial AlSi9Cu3 HPDC alloys, the developed AlSi9Cu3-1wt% SiCnp composite provided an improved YS of ∼187 MPa and a UTS of ∼350 MPa in the as-cast state and the milestone high YS and UTS of ∼370 MPa and ∼468 MPa under a T6 condition, respectively. ; Financial support from European Union (LIGHTME Grant Agreement No. 814552) is gratefully acknowledged. The authors are also grateful to the ETC for providing access to equipment for microstructural characterisation.