411 research outputs found

    NEW SILVER NANOCOMPOSITES BASED ON AZANORBORNENE COPOLYMERS

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    This work was supported by the Russian Foundation for Basic Research, project 19-43-590019-r_a

    NEW SILVER NANOCOMPOSITES BASED ON COPOLYMERS OF AZANORBORNENES WITH N-VINYLPYRROLIDONE

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    The copolymers of N-methyl-2-azanorbornene-5 (MAN), N-benzyl-2-azanorbornene-5 (BAN), N-allyl-2-azanorbornene-5 (AAN) and N-(2-azanorbornene-5)methylacetate (MAAN) with Nvinylpyrrolidone (VP) have been obtained by free radical polymerization.This work was supported by the Russian Foundation for Basic Research and Government of the Perm Region, project 19-43-590019-r_a

    NEW SILVER NANOCOMPOSITES BASED ON PHOSPHOROUS-CONTAINING COPOLYMERS

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    The study was funded by Russian Foundation for Basic Research and Government of the Perm Region according to the research project № 19-43-590019 r_a. Analytical, spectroscopic, and biological studies were performed at the "Research of materials and substances" collective Center of PFRC UB RAS

    Problems and prospects of development of public-private partnership in the field of secondary vocational training

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    Статья посвящена проблеме недостаточного нормативно-правового обеспечения государственно-частного партнерства в сфере среднего профессионального образования.The article is devoted to the issue of insufficient legal ensuring of public-private partnership in the field of secondary vocational education

    Development of multiple-wavelength oscillation in plasma of a pulse-periodic He+Ne+Sr laser

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    Mechanisms of multiple-wavelength oscillation at the lines of He I, Ne I, Sr I, and Sr II ions in the active medium of a high-voltage pulse-periodic laser based on a He + Ne + Sr mixture at a total pressure of ∼200 Torr and duration of the current pulse of about 150–300 ns are analyzed. An important role played by collisional thermal mixing of the laser levels of Ne I and Sr I in multiplets, as well as by collisions of the second kind between metastable and unexcited atoms, in populating and depopulating atomic levels is demonstrated. Absolute populations of the upper and lower levels of the laser transitions in Ne I are found. It is discovered that the degree of ionization nonequilibrium of plasma, both during and after the pulse of current, determines the mechanism of population inversion in laser transitions

    Search of new pharmaceuticals on the basis of darbepoetin in the treatment of ischemic stroke: review of literature

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    The article contains the analysis of medical and biological publications from the global database created by the National Centre for Biology Information (NCBI), an intramural biotechnological division of the US National Library of Medicine. The authors have analyzed publications of the recent ten years. Major results of study of erythropoietins and their recombinant analogues have been generalized and systematized. There has been revealed the significant potential of the preparations of this group to be studied and used. Major advantages and drawbacks of erythropoietins and their recombinant analogues have been describe

    Development of sportsman students' autonomy in the educational environment of electronic information and foreign language teachers’ readiness to this process

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    The study addresses the major factors preventing foreign language (FL) teachers from effective use of electronic information educational environment (EIEE) at the institutes of higher learning (IHL) in Russia to develop learner autonomy. Upon holding interviews and taking polls of 60 respondents from three universities helped the authors find out that these factors include: sketchy knowledge of information and communication technologies among foreign language teachers; poor standards of material and technical resources capability at universities; inadequate readiness of FL teachers to apply new information and communication technologies; insufficient level of FL teachers motivation to use innovative ITs at work. The contributors have worked out a number of pedagogical conditions that should be provided at the IHL to clear the barriers mentioned above: gradual development of FL teachers readiness to use the EIEE (the IT competence acquisition based on learning management systems (LMS); FL teachers activity stimulation to work in the EIEE through creating modular courses); setting up the EIEE in the IHL, which can translate all e-learning possibilities into action, the LMS, software and documentation among them. The said pedagogical conditions have successfully been tested and implemented at RUDN University

    Ag/ZnO NANOCOMPOSITES AS REAGENTS FOR WATER TREATMENT

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    The study was funded by the program of the Perm Research and Education Center "Rational subsoil use". Analytical, spectroscopic, and biological studies were carried out using the equipment of the Core Facilities Center "Research of materials and matter" at the PFRC UB RAS

    A RESPONSE OF THE "RESERVOIR-WELL" SYSTEM TO DISTANT EARTHQUAKES

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    The results of joint processing of hydrogeological and seismic data obtained at the Large-Scale Research Facilities "Mid-Latitude Geophysical Observation Complex "Mikhnevo" for a 12-year observation period are presented in the article. Responses of the "reservoir-well" system to the passage of seismic waves from distant earthquakes with magnitudes of 6.3-9.0, recorded at the epicentral distances from 1863 to 16507 km, have been identified in the database. Maximum values of groundwater level variations and ground velocity under seismic impact have been determined. The power-law dependence of the levels amplitudes of confined and weakly confined aquifers on the maximum vertical ground velocity has been established. A spectral analysis of 6-hour intervals (3 hours before and 3 hours after earthquakes) of seismic and hydrogeological data was performed. The frequencies corresponding to the maximum values of ground velocity and groundwater level variations were determined in the normalized spectra. The intervals within which the extremes of the hydrogeological responses are traced at background values of the ground velocity are identified in the low-frequency range. The amplitude-frequency characteristics of the "reservoir-well" systems differ under seismic impacts at epicentral distances up to 4901 km. The responses of the systems to earthquakes at epicentral distances of 11024-14026 km are similar
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