2,257 research outputs found

    A model of financialization of commodities

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    We analyze how institutional investors entering commodity futures markets, referred to as the financialization of commodities, affect commodity prices. Institutional investors care about their performance relative to a commodity index. We find that all commodity futures prices, volatilities, and correlations go up with financialization, but more so for index futures than for nonindex futures. The equity-commodity correlations also increase. We demonstrate how financial markets transmit shocks not only to futures prices but also to commodity spot prices and inventories. Spot prices go up with financialization, and shocks to any index commodity spill over to all storable commodity prices

    Using temporary water to resupply fresh water (on example Kanaka SCC)

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    In boarding houses, located at the mouth of the Kanaka beam (SCC), the problem of provision with fresh drinking water worsened. So far, the provision with drinking water was carried out with water wells from the aquifer at a depth of up to 15 m from the earth surface

    The use of ICT tools by academic teachers in the international comparative context

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    The article sets out to analyze the professional competencies on the standard European e-Competence Framework. The survey of information technology teachers of Ukrainian universities concerning the necessity of forming and development of European e-Competence Framework competencies allowed defining the priority areas for training and forming the content component of a model of professional competencies development of information technology university teachers. The proposed model distinguishes stages, factors, and resources for training teachers. Teachers’ attitude to motivation, time and money allocation for professional development was researched. The content component of the development of professional competences of teachers of information technologies is offered. Recommendations for training and advanced training of teachers of information technologies, assessment of the level of development of professional competence, was proposed

    The wall flora of the Nebet Tepe Architectural Reserve in the city of Plovdiv (Bulgaria)

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    The flora of the Nebet Tepe Architectural Reserve in the city of Plovdiv (Thracian Plain) was studied in the period 1998–2003. The number of plants growing spontaneously on and around the fragments of the fortification wall and on the pavements is 131. The flora is analyzed with respect to the local distribution of the taxa, their chorology, life form and geoelement characteristics. The flora contains a relatively high proportion of ruderals and weeds. The hemicryptophytes and therophytes constitute the largest group. The following families are distinguished by the greatest number of species: Asteraceae (14), Fabaceae (13), Poaceae (12), Brassicaceae (8), Scrophulariaceae (7), Caryophyllaceae (7). The species Cerastium tauricum Spreng. and Melica transsilvanica Schur are recorded for the first time for the flora of the Thracian Plain floristic region. The results are compared with other European and Mediterranean wall floras

    The wall flora of the Nebet Tepe Architectural Reserve in the city of Plovdiv (Bulgaria)

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    The flora of the Nebet Tepe Architectural Reserve in the city of Plovdiv (Thracian Plain) was studied in the period 1998–2003. The number of plants growing spontaneously on and around the fragments of the fortification wall and on the pavements is 131. The flora is analyzed with respect to the local distribution of the taxa, their chorology, life form and geoelement characteristics. The flora contains a relatively high proportion of ruderals and weeds. The hemicryptophytes and therophytes constitute the largest group. The following families are distinguished by the greatest number of species: Asteraceae (14), Fabaceae (13), Poaceae (12), Brassicaceae (8), Scrophulariaceae (7), Caryophyllaceae (7). The species Cerastium tauricum Spreng. and Melica transsilvanica Schur are recorded for the first time for the flora of the Thracian Plain floristic region. The results are compared with other European and Mediterranean wall floras

    Preschooler’s Cognitive Development in Correlation with Their Parents’ Implicit Theories of Intelligence and Personality

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    This paper is devoted to cognitive development of preschoolers in correlation with implicit theories of their parents. There are four positive mindsets of intelligence and learning motivation: (1) growth intelligence mindset, (2) growth personality mindset, (3) acceptance of learning goals, (4) positive learning self-esteem. We hypothesized that cognitive and intellectual parameters and self-esteem of preschoolers correlatewith parents’ growth mindsets. The study involved 120 subjects-40 preschoolers in age of 6 ± 0.5 years old (20 boys and 20 girls) and their 80 fathers and mothers. The parents ’ sample consisted of subjects aged from 27 to 54 years average age was 37.9 ± 6.7 years old). To investigate the cognitive differences of preschoolers we used: (1) two subtests of WISC (for examining attention and short-term memory); (2) Method of Verbal Thinking of Kern-Yirasek; (3) Method of Express Diagnostics of Intellectual Abilities (MEDIA) I. S. Averina, E. I. Shabanova and E. N. Zadorina. To explore parents’ mindsets Questionnaire of Implicit Theories of Intelligence and Personality (by C. Dweck, in the adaptation of T.V. Kornilova et al, 2008) was used. It was determined that the indicators of cognitive development and intelligence of girls are more related to parental attitudes than boys. In this case, the closest relationship is observed in the dyad ”father – daughter”. Indicators of attention, short-term memory, understanding of quantitative and qualitative relations, logical thinking are associated with mindsets of growth intelligence and adoption of their fathers’ high learning value. Girls ’mathematical abilities are positively related to fathers’ and negative mothers ’ growth mindsets. Keywords: parents’ influence, growth intelligence mindset, growth personality mindset, learning goals, learning self-esteem, cognitive and intellectual development

    State of the mineral component of rat bone tissue during hypokinesia and the recovery period

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    Experiments were conducted on young growing rats. Hypokinesia lasting from 20 to 200 days caused retarded gain in weight and volume of the femur and delayed development of the cortical layer of the diaphysis. In contrast, the density of the cortical layer of the femoral diaphysis increased due to elevation of the mineral saturation of the bone tissue microstructures. Incorporation of Ca into the bone tissue in hypokinesia had a tendency to reduce. Partial normalization of the bone tissue mineral component occurred during a 20 day recovery period following hypokinesia

    Socially efficient entry barriers?

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    Stagnation of the Russian economy lends a new urgency to the question of whether reserves of competition incentives can be used to overcome the current negative economic tendencies. The lowering of entry barriers is traditionally considered a universal instrument of promoting competition. However, lower entry barriers can be mistakenly associated with bringing the market closer to the state of the so-called "perfect" competition. The authors aim to show that the absence of entry barriers does not improve competition in certain markets. On the contrary, it may result in a decrease in social welfare. This is particularly true of capital-intensive goods, for instance, large diameter pipes for gas pipelines. Lack of proper competition in such sectors of the market necessitates entry barriers, for they help to achieve a separating equilibrium at the market. Since there are costs associated with creating a separating equilibrium, it is necessary to assess both costs and benefits of the pooling and separating equilibria
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