736 research outputs found

    Synthesis and Attestation of Titanium Dioxide Nanotubes Based Photocatalyst for Water and Air Purification out of Harmful Organic Impurities

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    In the present work we have synthesized nanotubular TiO2 film with a nonstoichiometric layer in the vicinity of titanium foil by anodization during 120 min. The catalytic activity of nanotubular titanium dioxide films formed during the oxidation of acetone to carbon dioxide under the action of visible light with a wavelength of 450 nm was found to be approximately 2 times higher compared to standard titanium dioxide (Degussa P25). Such a pronounced enhancement of activity may be attributed to a more efficient absorption of visible light by the films due to narrowing of the optical gap because of difference in the nonstoichiometry of titanium dioxide near the interface between nanotubular film and the titanium foil substrate. Keywords: photocatalysis, nonstoichiometric titanium dioxide, purification of wate

    The orientation towards the implementation of speech technologies in the training of specialists in the system of artistic education

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    При финансовой поддержке Российского гуманитарного научного фонда, проект № 07-06-14162

    The Small-angle X-Ray Scattering Investigation of Advanced Beryllium Materials

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    The small-angle X-ray scattering (SAXS) technique allows to determine size distributions of inhomogeneities in materials and to predict their properties in Xray optics devices. A number of beryllium materials for the manufacturing of X-ray optics (refractive lenses and speckle suppressors) have been studied by the SAXS.Various composite materials based on porous beryllium have been studied. The effect of adding detonation nanodiamonds to the beryllium matrix on the scattering ability of the material is discussed. Keywords: porous beryllium, SAXS, detonation nanodiamonds, speckle-suppresso

    Rhetorical Lacunes: Causes, Implications, Warning

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    The article analyzes the current state of rhetoric as an academic discipline and the prospects for its study. Rhetorical skills and skills of the student are one of the significant results of educational achieve­ments. However, in Russia, their formation is hampered by the absence of the majority of native speakers of ideas about the logical, stylistic and ethical laws of public speech. Purpose of article - based on the analysis of works devoted to modern rhetoric, to characterize the state of rhetorical education in modern society and the place of rhetorical (communication) disciplines in the system of school and university education. The causes of the decline of rhetoric, the ways of its development as a factor in the education of a rhetorical person are considered, the problem of speech influence and its study in a higher educational institution is touched upon.В статье рассматривается современное состояние риторики как учебной дисциплины и перспективы ее изучения

    NORMATIVE ORIENTATION OF THE LANGUAGE OF FICTION: LINGUISTIC-AESTHETIC ASPECT

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    Purpose: The article conducts the study implementation of the normative orientation of the language of fiction: linguistic-aesthetic aspect Methodology: This is analytical-logical research done by content analysis. Result: In the article, it is argued that normative orientation of the fiction speech is rather different from that of functional styles in which, as a rule, not only non-literary language elements but also specific phenomena of other styles are not used. Applications: This research can be used for the universities, teachers and education students. Novelty/Originality: A number of outstanding scientists such as V.D. Levin, N.A. Meshchersky, N.M. Shansky, N.L. Maksimov, D.N. Shmelev, K.A. Panfilov and others consider the language of fiction as a special type of the literary language which is characterized by aesthetic function and in which the particular peculiarities of all other functional styles can be found as well as non-literary linguistic means of different kinds: colloquial, slang, dialectal, etc

    The peculiarities of formation the image of future profession by students of VOCAT

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    The article deals with the issues linked with the need to form the image of future profession by college students, based on the analysis of the requirements of the modern labor market as an important condition of their professional self-realisationВ статье рассматриваются вопросы, связанные с необходимостью формирования образа профессионального будущего студентами колледжа, на основе анализа требований современного рынка труда, как важного условия их профессиональной самореализаци

    An educational technology for developing professionally-oriented EFL communicative competence: its acmeological potential

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    AbstractThis paper addresses the problem of creating effective educational technologies aimed at developing university students’ professionally-oriented EFL communicative competence in research-oriented higher educational settings. Two techniques (mini-research and individual educational trajectory), being actional components of the educational technology developed, were analyzed from the acmeological potential perspective based on the study undertaken. The study participants were undergraduates and master's students majoring in non-language-related fields

    Analysis of strawberry genetic collection (Fragaria L.) for Rca2 and Rpfl genes with molecular markers

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    Strawberry (Fragaria x ananassa Duch.) varieties are susceptible to many fungal diseases. Identification of forms, carrying resistance genes, is an important stage in breeding programs leading to resistant varieties. The use of molecular markers allows to determine with high reliability the presence of the necessary genes in the genome and to identify promising forms. Some of the common strawberry's diseases, causing significant damage to strawberry plantations, are anthracnose (Colletotrichum acutatum Simmonds) and red stele root rot (Phytophthora fragariae var. fragariae Hickman). Dominant Rca2 gene is involved in monogenic resistance to C. acutatum pathogenicity group 2. Rpf1, Rpf2, Rpf3 genes are determined in monogenic resistance to red stele root rot. The purpose of this study was molecular genetic testing genotypes of genus Fragaria L. to identify carriers of Rca2 allele anthracnose resistance and Rpf1 allele red stele root rot resistance. The objects of study were the wild species of the genus Fragaria L. and strawberry varieties (Fragaria x ananassa Duch.) of different ecological and geographic origin. To assess allelic state Rca2 anthracnose resistance gene the dominant SCAR marker STS-Rca2_240 was used, was linked to the resistance gene Rca2 with a genetic distance of 2.8 cM. Rpf1 gene red stele root rot resistance was identified with the dominant SCAR marker R1A, was linked to the resistance gene Rpf1 with a genetic distance of 3.0 cM. The resistant allele of the marker STS-Rca2_240 was identified in the Laetitia variety (Rca2Rca2 or Rca2rca2 genotype), which allows us to recommend it as a promising source in breeding for anthracnose resistance. The other studied forms have homozygous recessive state of the marker STS-Rca2_240 (putative genotype rca2rca2). The resistant allele of the marker SCAR-R1A in the varieties and wild species of strawberry under study is absent, which presumably indicates their homozygous recessive genotype of Rpf1 gene (rpf1rpf1)
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