135 research outputs found

    Dialogue communicative structures in the process of teaching foreign-language dialogic communication skills

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    The interrelation between the strategical content of a dialogue and the specific character of its grammatical, lexical and syntactic arrangement remains the most important question to be answered. The simulating of lingual interaction can be used in the process of creating new systems of conditionally communicative strategic exercises for teaching dialogue. This paper represents a study of the aspects of developing effective dialogic models with due consideration of their communicative structures in the process of teaching a foreign language. The main communicative strategies and approaches applied to different multinational groups and groups with mixed age at different stages of teaching are described here. A concept of a simulated dialogue is proposed in this study. The concept means controlled conversational interaction (dialogic interaction) between persons being taught, which is composed of different dialogue partners' personal intentions implemented in coordination. Unsymmetrical contacts affect the dialogue development, where tactic forms choice limitations get involved, wider prospect of a dialogue is provided due to the equal social roles of participants interested in the perception of information communicated, and dialogue simulation ensures necessary volume of a speech interaction act. The results of a linguistic experiment conducted using the elements of conscious effect on the process of natural lingual interaction were used as material for study. The process was controlled by means of unexpected introduction of a new incentive (stimulus). The pseudocommunicativeness of such interaction was eliminated due to the availability of incentives aimed at expanding the elementary cycle through the introduction of new structural strategic components, a new aim, or a new script. Several students learning Russian as a foreign language took part in the experiment. As a result of studies undertaken a corpus of extracted dialogues was compiled. Applying the communicative tactics as a basis for teaching a foreign language the use of a simulated dialogue can promote the optimization of the teaching process and supplementary motivation in learning a foreign language as a communication tool, because the choice of an optimal way of expressing intentions is the communicative need of any person learning a language

    ORGANIZATION OF PROJECT ACTIVITIES IN THE COURSE OF «FOUNDATIONS OF RELIGIOUS CULTURES AND SECULAR ETHICS»

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    This article is devoted to some issues of teaching the module «Fundamentals of Orthodox culture» of the complex course «Fundamentals of world religious cultures and secular ethics». The role of project activity in familiarizing students of primary school age to the spiritual traditions of Orthodox culture is actualized.Данная статья посвящена отдельным вопросам преподавания модуля «Основы православной культуры» комплексного курса «Основы мировых религиозных культур и светской этики». Актуализирована роль проектной деятельности в приобщении обучающихся младшего школьного возраста к духовным традициям православной культуры

    Quantum field theory and time machines

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    We analyze the "F-locality condition" (proposed by Kay to be a mathematical implementation of a philosophical bias related to the equivalence principle, we call it the "GH-equivalence principle"), which is often used to build a generalization of quantum field theory to non-globally hyperbolic spacetimes. In particular we argue that the theorem proved by Kay, Radzikowski, and Wald to the effect that time machines with compactly generated Cauchy horizons are incompatible with the F-locality condition actually does not support the "chronology protection conjecture", but rather testifies that the F-locality condition must be modified or abandoned. We also show that this condition imposes a severe restriction on the geometry of the world (it is just this restriction that comes into conflict with the existence of a time machine), which does not follow from the above mentioned philosophical bias. So, one need not sacrifice the GH-equivalence principle to "emend" the F-locality condition. As an example we consider a particular modification, the "MF-locality condition". The theory obtained by replacing the F-locality condition with the MF-locality condition possesses a few attractive features. One of them is that it is consistent with both locality and the existence of time machines.Comment: Revtex, 14 pages, 1 .ps figure. To appear in Phys. Rev. D More detailed discussion is given on the MF-locality condition. Minor corrections in terminolog

    Lambda-inflation and CMB anisotropy

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    We explore a broad class of three-parameter inflationary models, called the Λ\Lambda-inflation, and its observational predictions: high abundance of cosmic gravitational waves consistent with the Harrison-Zel'dovich spectrum of primordial cosmological perturbations, the non-power-law wing-like spectrum of matter density perturbations, high efficiency of these models to meet current observational tests, and others. We show that a parity contribution of the gravitational waves and adiabatic density perturbations into the large-scale temperature anisotropy, T/S 1\sim 1, is a common feature of Λ\Lambda-inflation; the maximum values of T/S (basically not larger than 10) are reached in models where (i) the local spectrum shape of density perturbations is flat or slightly red (nS<1n_S{}_\sim^< 1), and (ii) the residual potential energy of the inflaton is near the GUT scale (V01/41016GeVV_0^{{1/4}} \sim 10^{16} GeV). The conditions to find large T/S in the paradigm of cosmic inflation and the relationship of T/S to the ratio of the power spectra, rr, and to the inflationary γ\gamma and Hubble parameters, are discussed. We argue that a simple estimate, T/S3r12γ(H6×1013GeV)2\simeq 3r\simeq 12\gamma \simeq (\frac{H}{6\times 10^{13}{\rm GeV}})^2, is true for most known inflationary solutions and allows to relate straightforwardly the important parameters of observational and physical cosmology.Comment: 29 pages, 3 figures include

    Review of scientific topics for Millimetron space observatory

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    This paper describes outstanding issues in astrophysics and cosmology that can be solved by astronomical observations in a broad spectral range from far infrared to millimeter wavelengths. The discussed problems related to the formation of stars and planets, galaxies and the interstellar medium, studies of black holes and the development of the cosmological model can be addressed by the planned space observatory Millimetron (the "Spectr-M" project) equipped with a cooled 10-m mirror. Millimetron can operate both as a single-dish telescope and as a part of a space-ground interferometer with very long baseline.Comment: The translation of the original article in Physics Uspekhi http://ufn.ru/ru/articles/2014/12/c

    The interaction of dark matter cusp with the baryon component in disk galaxies

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    In this paper we examine the effect of the formation and evolution of the disk galaxy on the distribution of dark halo matter. We have made simulations of isolated dark matter (DM) halo and two component (DM + baryons). N-body technique was used for stellar and DM particles and TVD MUSCL scheme for gas-dynamic simulations. The simulations include the processes of star formation, stellar feedback, heating and cooling of the interstellar medium. The results of numerical experiments with high spatial resolution let us to conclude in two main findings. First, accounting of star formation and supernova feedback resolves the so-called problem of cusp in distribution of dark matter predicted by cosmological simulations. Second, the interaction of dark matter with dynamic substructures of stellar and gaseous galactic disk (e.g., spiral waves, bar) has an impact on the shape of the dark halo. In particular, the in-plane distribution of dark matter is more symmetric in runs, where the baryonic component was taken into account.Comment: 7 pages, 6 figure

    Prevalence of Arboviruses in Vietnam

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    For many years, arbovirus infections have been a global health problem and one of the urgent threats to the sanitary and epidemiological well-being of the population. Climatic conditions, species diversity and abundance of vectors, epidemiological and demographic factors are of fundamental importance for the emergence and persistence of natural foci of arbovirus infections. In the Socialist Republic of Vietnam (SRV) and other countries of the Asia-Pacific region, the most complex epidemiological situation is observed in regard to a number of arboviral infectious diseases transmitted by mosquitoes, inter alia to dengue fever. In this review we analyzed the literature data to identify the features of the circulation of some arboviruses in Vietnam, such as dengue virus, Zika, Chikungunya, Japanese encephalitis virus, Dabie virus, and the routes of their transmission and spread. It is shown that the climatic, ecological, epidemiological and demographic conditions existing on the territory of Vietnam contribute to the spread of pathogens of many arboviruses. Areas of more active circulation and ways of spreading pathogens of arbovirus infections have been identified. Based on the data obtained, it is necessary to conduct annual epidemiological and epizootiological survey of the territory of the SRV in order to identify markers of pathogens and determine the boundaries of natural foci of arbovirus infectious diseases which will enhance and increase the effectiveness of preventive and anti-epidemic measures

    Observational Manifestations of the First Protogalaxies in the 21 cm Line

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    The absorption properties of the first low-mass protogalaxies (mini-halos) forming at high redshifts in the 21-cm line of atomic hydrogen are considered. The absorption properties of these protogalaxies are shown to depend strongly on both their mass and evolutionary status. The optical depths in the line reach \sim0.1-0.2 for small impact parameters of the line of sight. When a protogalaxy being compressed, the influence of gas accretion can be seen manifested in a non-monotonic frequency dependence of the optical depth. The absorption characteristics in the 21-cm line are determined by the thermal and dynamical evolution of the gas in protogalaxies. Since the theoretical line width in the observer's reference frame is 1-6 kHz and the expected separation between lines 8.4 kHz, the lines from low mass protogalaxies can be resolved using ongoing and future low frequency interferometers.Comment: 12 pages, 5 figure
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