397 research outputs found

    Роль працівників НЦБ Інтерполу в Україні у здійсненні міжнародного розшуку та екстрадиції

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    (uk) У статті з’ясовується значення та обсяг понять "міжнародний розшук" та "екстрадиція" на основі аналізу наукових досліджень як вітчизняних, так і зарубіжних учених-юристів, оскільки в юридичній літературі термін "екстрадиція" має різноманітні значення. А тому необхідно розмежувати базові терміни, які широко використовуються дослідниками роботи Інтерполу.(en) Or relation of terms is the "The international search of criminals' and "Extradition" in the article the value and volume of concepts concerns the The international search of criminals" and "Extradition' on the basis of scientific researches of both domestic and foreign scientific lawyers, as in legal literature term the "Extradition" is used in the different values. In this connection it is necessary to differentiate base concepts which researcher use widely works of the Interpol

    Формування сучасної наукової картини світу засобами системи наскрізних понять

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    (uk) В сучасних умовах розвитку суспільства учні використовують додатковий інформаційний ресурс поза навчальним закладом. З метою формування в суб ’єктів навчання наукової картини світу є потреба переглянути зміст методів навчання щодо раціональності їх застосування на всіх етапах навчально-виховного процесу в школі. У цій статті розглянуто варіанти вдосконалення методики формування у школярів наукової картини світу за рахунок оптимізації та раціоналізації використання методів навчання фізики.(en) In the modern terms of development of society a nd at the increase of the role of informative resource that students get extra curriculum, informing the subjects of studies o f scientific picture of the world have a necessity to revise maintenance of methods of studies in relation to rationality of their application at all stages of educational-educator process at school. Therefore this article considers variants of perfection of form in g methodology for the schoolchildren of scientific picture of the world due to optimization and rationalization of the use of methods of studies in educational process ofphysics

    Frequency-Dependent Photothermal Measurement of Transverse Thermal Diffusivity of Organic Semiconductors

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    We have used a photothermal technique, in which chopped light heats the front surface of a small ( ~ 1 mm2) sample and the chopping frequency dependence of thermal radiation from the back surface is measured with a liquid nitrogen cooled infrared detector. In our system, the sample is placed directly in front of the detector within its dewar. Because the detector is also sensitive to some of the incident light which leaks around or through the sample, measurements are made for the detector signal that is in quadrature with the chopped light. Results are presented for layered crystals of semiconducting 6,13-bis(triisopropylsilylethynyl) pentacene (TIPS-pn) and for papers of cellulose nanofibrils coated with semiconducting poly(3,4-ethylene-dioxythiophene):poly(styrene-sulfonate) (NFC-PEDOT). For NFC-PEDOT, we have found that the transverse diffusivity, smaller than the in-plane value, varies inversely with thickness, suggesting that texturing of the papers varies with thickness. For TIPS-pn, we have found that the interlayer diffusivity is an order of magnitude larger than the in-plane value, consistent with previous estimates, suggesting that low-frequency optical phonons, presumably associated with librations in the TIPS side-groups, carry most of the heat.Comment: 10 pages including 4 figures. To be published in J. Appl. Phy

    Charge transport and structure in semimetallic polymers

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    Owing to changes in their chemistry and structure, polymers can be fabricated to demonstrate vastly different electrical conductivities over many orders of magnitude. At the high end of conductivity is the class of conducting polymers, which are ideal candidates for many applications in low-cost electronics. Here, we report the influence of the nature of the doping anion at high doping levels within the semi-metallic conducting polymer poly(3,4-ethylenedioxythiophene) (PEDOT) on its electronic transport properties. Hall effect measurements on a variety of PEDOT samples show that the choice of doping anion can lead to an order of magnitude enhancement in the charge carrier mobility > 3 cm2/Vs at conductivities approaching 3000 S/cm under ambient conditions. Grazing Incidence Wide Angle X-ray Scattering, Density Functional Theory calculations, and Molecular Dynamics simulations indicate that the chosen doping anion modifies the way PEDOT chains stack together. This link between structure and specific anion doping at high doping levels has ramifications for the fabrication of conducting polymer-based devices. © 2017 The Authors. Journal of Polymer Science Part B: Polymer Physics Published by Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2018, 56, 97–104.The authors acknowledge the European Research Council (ERC-starting-grant 307596), the Swedish foundation for strategic research (project: “Nano-material and Scalable TE materials”), the Knut and Alice Wallenberg foundation (project “Power Paper” and “Tail of the Sun”), The Swedish Energy Agency (3833221), the Swedish Research Council via “Research Environment grant” on “Disposable paper fuel cells” (2016205990), and the Advanced Functional Materials Center at Link€oping University. The authors thank Masatsugu Yamashita from the THz Sensing & Imaging Lab at RIKEN in Japan for conducting the THz reflectance spectroscopy experiments. D.R. Evans acknowledges the support of the Australian Research Council through the Future Fellowship scheme (FT160100300). J.W. Andreasen acknowledges the support of the European Research Council (ERC-consolidator-grant 681881)
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