16 research outputs found

    Position and frequency shifts induced by massive modes of the gravitational wave background in alternative gravity

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    Alternative theories of gravity predict the presence of massive scalar, vector, and tensor gravitational wave modes in addition to the standard massless spin~2 graviton of general relativity. The deflection and frequency shift effects on light from distant sources propagating through a stochastic background of gravitational waves, containing such modes, differ from their counterparts in general relativity. Such effects are considered as a possible signature for alternative gravity in attempts to detect deviations from Einstein's gravity by astrophysical means.Comment: 9 pages, 1 figur

    The selection of cloud services for ER-diagrams construction in IT specialists databases teaching

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    One of the main aspects of studying databases in higher education institutions by future IT specialists is database design and software product development. This, in turn, is the most important problem of the developer’s interaction with the customer. To facilitate the process of database design, ER-diagrams are used, which are based on the concepts of “Entity” and “Relationship”. An ER diagram allows you to present a database in the form of visual graphical objects that define a specific subject area. The article considers the available cloud services for the construction of ER-diagrams for learning databases of future IT specialists and their selection the method expert evaluation. For this purpose, the criteria and indicators for the selection of cloud services for the construction of ER-diagrams of databases by future information technology specialists have been determined. As a result, it was found that the cloud services Dbdesigner.net and Lucidchart are the most convenient to learn. It is determined that for a teacher of a higher education institution the use of cloud services is an opportunity to use licensed software in education without additional costs

    Model of using cloud-based environment in training databases of future IT specialists

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    The authors substantiates and develops the model of using cloud-based environment (CBE) in the training of databases of future information technology (IT) specialists, which consists of interrelated units: target (purpose, task of using CBE), conceptual (pedagogical approaches, didactic principles), organizational and semantic (characteristics of CBE, basic requirements for CBE, subjects of training, CBE of the teacher, CBE of the student, curricula of institution of higher education, educational-methodical complex of discipline “Databases”, installation and configuration of database management system, development of educational material from the database in electronic form, selection of cloudbased systems of distance learning, introduction of cloud-based systems of distance learning in the training of students’ databases, selection of CBE in database training (databases, forms, methods, tools), evaluative (criteria, indicators, levels of professional and practical competence of future IT specialists on the use of CBE in database training), effective (increased formation of the information and communication technologies of future IT specialists on the use of CBE in database training)

    Optical and thermal effects in the neighborhood of the spherical layered nanoparticle of the ``metallic core - J-aggregate shell'' structure

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    The relations for the polarizability of the metallic nanoparticles, coated with the shell of cyanine dyes, are obtained in the article. The frequency dependencies for light absorption and scattering efficiencies, the heating of the composite nanoparticle and the electric field amplification in its neighborhood are studied. It is established that all the dependencies have three maxima which correspond to the frequencies of hybrid plasmon-exciton resonance. It is shown that an increase in content of metal in the nanoparticle causes a blue shift of the maxima from the visible part of the spectrum and a red shift of the maximum from ultraviolet frequency range. The issue of application of metal-organic nanoparticles in nanomedicine, in particular for the photothermal therapy of malignant neoplasms is studied

    On the question of the structure of the personal image of specialists in the fashion and beauty industry

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    Статья посвящена актуальной в наше время проблеме структуры персонального имиджа специалистов индустрии моды и красоты и ее составляющих - компонентов. В статье раскрываются понятия имиджа, профессионального имиджа и компонентов имиджа, описываются характеристики каждого компонента структуры персонального имиджа специалистов индустрии моды и красоты, а также предлагается наглядная схема взаимосвязи элементов имиджа. Обоснована необходимость целенаправленного формирования персонального имиджа как ведущего инструмента в достижении профессиональных целей.The article is devoted to the actual problem of the personal image of specialists in the fashion and beauty industry and its components. The article reveals the concepts of image, professional image and image components, describes the characteristics of each component of the structure of the personal image of fashion and beauty industry specialists, and also offers a visual diagram of the relationship of image elements. The necessity of purposeful formation of a personal image as a leading tool in achieving professional goals is substantiated

    Features of Legal Education of Older Teenagers Studying in Evening Educational Institution

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    В статье рассматриваются особенности деятельности и контингента вечернего общеобразовательного учреждения (из числа старших подростков). Раскрывается сущность правового воспитания в вечерней школе со старшими подростками с учетом их возрастных и индивидуально-личностных особенностей, а также выделяются критерии их правовой воспитанности.The article examines the features of the activities and the contingent of an evening educational institution (from among older adolescents). The essence of legal education in the evening school with older adolescents is revealed, taking into account their age and individual personality characteristics, and the criteria for their legal education are also highlighted
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