90 research outputs found

    The Development of Creative Abilities as a Factor of the Social Maturity of Adolescents

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    The article considers the concept of the social maturity of adolescents in the context of the development of creative abilities. The relationships of social maturity with socialization, social creativity and innovative thinking of adolescents are researched. It is found that girls are more likely to move from the previous to the next level of social maturity. It is found that with age, the ability to social creativity develops. There is a connection between the level of social creativity and the levels of social autonomy, social morality and social activity of adolescents

    ПОЛИТИКА РОССИИ В АРКТИКЕ В СФЕРЕ ПРОДОВОЛЬСТВЕННОЙ БЕЗОПАСНОСТИ

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    The article analyzes current food security issues across the Russian Arctic, which were considered at the International Arctic Forum «ARCTIC: Territory of Dialogue» on March 29–30, 2017 and at the International Scientific and Practical Conference «Technologies of Social, Economic and Logistic Processes of the Arctic zone of Russia: History and Modernity» held at the Krasnoyarsk State Agrarian University on March 30–31, 2017.Particular attention is drawn to the practical provision of certain areas with basic agricultural products. Measures are proposed for the active involvement of the population of Arctic territories and indigenous peoples of the Far North in self-sufficiency of food with the use of products of traditional nature management of indigenous peoples. The complex approach to supplying the population of the northern territories of the Siberian Arctic with balanced food in accordance with the directions of food security in the world elaborated by the UN in the Millennium Declaration is substantiated.В статье анализируются актуальные в современных условиях вопросы обеспечения продовольственной безопасности арктических регионов России, которые рассматривались на Международном Арктическом форуме 29–30 марта 2017 г. «АРКТИКА – территория диалога» и на Международной научно-практической конференции «Технологии развития социальных, экономических и логистических процессов Арктической зоны России: история и современность» в Красноярске 30–31 марта 2017 года, проходившей в Красноярском государственном аграрном университете.Особое внимание обращается на реальное обеспечение отдельных районов основными продуктами сельского хозяйства. Предлагаются меры по активному вовлечению населения арктических территорий и коренных малочисленных народов Крайнего Севера в самообеспечение продовольствием с использованием продукции традиционного природопользования коренных малочисленных народов.Обосновывается комплексный подход к обеспечению населения северных территорий сибирской Арктики сбалансированным продовольствием в соответствии с направлениями продовольственной безопасности в мире, разработанными ООН в Декларации Тысячелетия

    Magnetic and structural properties of barium hexaferrite BaFe12O19 from various growth techniques

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    Barium hexaferrite powder samples with grains in the m-range were obtained from solid-state sintering, and crystals with sizes up to 5 mm grown from PbO, Na2CO3, and BaB2O4 fluxes, respectively. Carbonate and borate fluxes provide the largest and structurally best crystals at significantly lower growth temperatures of 1533 K compared to flux-free synthesis (1623 K). The maximum synthesis temperature can be further reduced by the application of PbO-containing fluxes (down to 1223 K upon use of 80 at % PbO), however, Pb-substituted crystals Ba1-xPbxFe12O19 with Pb contents in the range of 0.23(2) x 0.80(2) form, depending on growth temperature and flux PbO content. The degree of Pb-substitution has only a minor influence on unit cell and magnetic parameters, although the values for Curie temperature, saturation magnetization, as well as the coercivity of these samples are significantly reduced in comparison with those from samples obtained from the other fluxes. Due to the lowest level of impurities, the samples from carbonate flux show superior quality compared to materials obtained using other methods

    An Effective Method for Substance Detection Using the Broad Spectrum THz Signal: A "Terahertz Nose"

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    We propose an effective method for the detection and identification of dangerous substances by using the broadband THz pulse. This pulse excites, for example, many vibrational or rotational energy levels of molecules simultaneously. By analyzing the time-dependent spectrum of the THz pulse transmitted through or reflected from a substance, we follow the average response spectrum dynamics. Comparing the absorption and emission spectrum dynamics of a substance under analysis with the corresponding data for a standard substance, one can detect and identify the substance under real conditions taking into account the influence of packing material, water vapor and substance surface. For quality assessment of the standard substance detection in the signal under analysis, we propose time-dependent integral correlation criteria. Restrictions of usually used detection and identification methods, based on a comparison between the absorption frequencies of a substance under analysis and a standard substance, are demonstrated using a physical experiment with paper napkins

    High effective time-dependent THz spectroscopy method for the detection and identification of substances with inhomogeneous surface.

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    We discuss an effective time-dependent THz spectroscopy method for the detection and identification of a substance with an inhomogeneous surface using a broadband THz signal reflected from the substance. We show that a successful and reliable identification can be made using the single long-duration THz signal, which contains not only the main reflected pulse, but also several sub-pulses. The method does not use averaging of the measured THz signals over the viewing angles and scanning over the surface area, which significantly increases the signal processing speed. The identification is based on the method of spectral dynamics analysis together with the integral correlation criteria (ICC). We compare the absorption spectral dynamics of a substance under analysis with the corresponding dynamics for a standard substance from database. For reliable and effective substance detection, we propose to use several ICC simultaneously in different time intervals, which contain not only the main pulse of the reflected THz signal, but also the sub-pulses. This way, one can detect and identify the substance in the sample with high probability. As examples of identification, we used the THz signals reflected from the plastic explosive PWM C4 with both rough and concave surface. We show that the main pulse, reflected from the inhomogeneous surface of the sample, contains information about its absorption frequencies

    The Anomalous Influence of Spectral Resolution on Pulsed THz Time Domain Spectroscopy under Real Conditions

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    We have studied the spectral resolution influence on the accuracy of the substance detection and identification at using a broadband THz pulse measured under real conditions (at a distance of more than 3 m from a THz emitter in ambient air with a relative humidity of about 50%). We show that increasing spectral resolution leads to manifestation of small-scale perturbations (random fluctuations) in the signal spectrum caused by the influence of the environment or the sample structure. Decreasing the spectral resolution allows us to exclude from consideration this small-scale modulation of the signal as well as to detect the water vapor absorption frequencies. This fact is important in practice because it allows us to increase the signal processing rate. In order to increase the detection reliability, it is advisable to decrease the spectral resolution up to values of not more than 40% of the corresponding spectral line bandwidth. The method of spectral dynamics analysis together with the integral correlation criteria is used for the substance detection and identification. Neutral substances such as chocolate and cookies are used as the samples in the physical experiment

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