Surface-modified polyacrylonitrile nanofibers as supports

Polyacrylonitrile nanofibers (PAN-nfs) are one of the most studied nanofibres because of their excellent characteristics, such as good mechanical strength, chemical resistance, and good thermal stability. Due to the easy dissolution in polar organic solvents, PAN-nfs are mostly produced via electrospinning technique. The electrospun PAN-nfs surfaces are relatively in-active and hydrophobic, and, therefore, hinder some potential applications; however, chemical surface modification reactions, such as amination, reduction, hydrolysis, and amidoximation, have been carried out on them. These reactions bring about functional groups, such as amine, hydroxyl, carboxylic, imine etc, to the surface PAN-nfs and invariably make their surfaces active and hydrophilic. The surface-modified PAN-nfs have been used as supports for organic compounds, enzymes, and antibodies in biological studies. They have also been used for immobilization of various organic ligands for adsorption of metal ions in water. Furthermore, because of their ability to complex metal ions, several surface-modified PAN-nfs have also been used as supports for transition metal catalysts in Fenton’s chemistry.IS

Part 1: production of a modified PAN fibrous catalyst and its optimisation towards the decomposition of hydrogen peroxide

This paper describes the novel and innovative use of a mixture of hydrazine and hydroxylamine to prepare one of the first solid state Fenton’s catalysts where the active site does not leach out and is therefore reusable enabling industrial take-up. It resulted in an ongoing series of papers, 4 grants totalling £2million, and the award or filing of 5 patents. The catalyst is in field trials with Severn Trent Water for the removal of microcontaminats to meet new EU legislation. A similar process applied to low-value wool fibres (as patented by KDH) is likely to result in improved rural sustainability

Investigation of the mechanical and physico-chemical properties of a modified PAN fibrous catalyst

This paper was the first confirmation that the metal catalyst was located on the exterior surface of the fibre and the first to obtain an understanding of the number and nature of atoms around the active site by an EXAFS study at the international Synchrotron Source at Daresbury. Characterisation of the mechanical strength of the catalyst showed that it was good enough for industrial applications as detailed above

THE ANALYSIS OF SUCCESS MOTIVATION AND FAILURES AVOIDANCE OF THE FIRST-YEAR STUDENTS OF ECONOMICS IN KRASNOYARSK

Текст статьи не публикуется в открытом доступе в соответствии с политикой журнала.In the course of education a significant role is played by motivation of students. The study of academic motivation is one of the fundamental problems in pedagogics and psychology, since an efficient interaction between teachers and students is possible within understanding of their motivation. To teach in today’s environment it is necessary to be able to interpret such pshyco-pedagogical characteristics of a person as motivation, independent behavior, active performance and ability to reach one’s goals. To assess the motivation of the first-year students of economics in Krasnoyarsk we have used A. Mekhrabian’s inventory consisted of two forms: for males and females. Within the research, to identify relation between the motivation and performance of the students we have estimated Spearman’s rank correlation. The current research results in the fact that the majority of the first-year respondents are mainly willing to avoid failures. The distribution of points within the groups is close to a normal distribution. The indicators of motivation and academic performance of the students are correlated by the tie – average in size and straight in direction. To increase the number of students encouraged to succeed it is necessary to implement innovative teaching methods. The education techniques should be primarily aimed at the development of student’s cognitive interest in the process of education. The process of teaching should also be modernized with the active learning methods improving R&D work and solving the problems related to their future profession. It is also necessary to encourage the students for a successful academic and scientific life in the university starting from the very beginning

Methodological Approaches to Homogenous Regional Clusters Formation for Human Capital and Quality of Life Assessment in the Yenisei Siberia Macro-Region

The article addresses the approaches to measuring and assessing the limited and specific resource for the economy – human capital – in terms of information support for the quality of life management in the regions where “Yenisei Siberia” integrated investment project is being implemented (hereinafter – “Yenisei Siberia”), given the settlement system features and its professional structure, the current level of economic development and trends in production and demography, as well as the impact of ethnocultural, natural and geographical factors. The quality of life here is considered both as a statistically measurable quantity and as an estimated, subjective category determined by human behavior. It is the peoples’ well-being, based on the quality of life interpretation in the region that supports the human capital formation and its investment behavior, as well as the basis for cutting spatial inequality in the regions through coordination and joint management of the socio-economic spatial development. Taking into account such asymmetry in the socio-economic and socio-cultural situation in the regions, the authors propose an approach to the formation of homogeneous regional clusters for measuring the level of human capital and QOL in the territories of the macro-region of the Yenisei Siberi

Оценка человеческого капитала макрорегиона на примере Енисейской Cибири

The article is devoted to the problem of measuring and estimating the human capital of the natural resource macroregion, whose territory is characterized by a high level of social and economic asymmetry. It presents results of testing of modified index of human capital in context of interdisciplinary approach. The study was based on survey findings, along with statistical data. The satisfaction of the population with the quality of life is a key indicator of the dynamics of human capital in the long term. The authors give recommendations on the development of information support of territorial policyСтатья посвящена проблеме измерения и оценки человеческого капитала ресурсного макрорегиона, территория которого отличается высоким уровнем социально-экономической асимметрии. Представлены результаты апробации модифицированного индекса человеческого капитала в контексте междисциплинарного подхода. Наряду со статистическими данными исследование опиралось на опросные данные. Удовлетворенность населения качеством жизни является ключевым индикатором динамики человеческого капитала в долгосрочном периоде. Представлены рекомендации по развитию информационного обеспечения территориальной политик