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Ivano-Frankove, Ukraine

Nastasiuk V.A.,The National Pedagogical University
Physics Letters, Section A: General, Atomic and Solid State Physics | Year: 2015

Abstract The probability distribution function (PDF) for prices on financial markets is derived by extremization of Fisher information. It is shown how on that basis the quantum-like description for financial markets arises and different financial market models are mapped by quantum mechanical ones. © 2015 Elsevier B.V.

Melnik E.S.,The National Pedagogical University
Journal of Water Chemistry and Technology | Year: 2016

An alternative design of electrocoagulator for the chromium-containing wastewater treatment has been proposed. The processes of electrocoagulation treatment of such water were investigated. Effective design and operating parameters have been determined that allow the specified wastewater to be purified in accordance with normative requirements. © 2016, Allerton Press, Inc.

Pivovarchik V.,The National Pedagogical University
Journal of Physics A: Mathematical and Theoretical | Year: 2015

For a graph consisting of parallel connected subgraphs we express the characteristic function of the boundary value problem with generalized Neumann conditions at both joining points via characteristic functions of different boundary problems on the subgraphs. © 2015 IOP Publishing Ltd.

Orazbayeva K.O.,The National Pedagogical University
International Journal of Environmental and Science Education | Year: 2016

Current challenges of globalization in a democratic post-industrial information society make the competency-based approach a standard in the creation of the global educational environment. This study describes the special aspects of the integration of the competency-based approach into the educational theory and practice of post-Soviet countries, substantiated the necessity of including the global dimension in the structure of teachers’ professional competency based on the analysis of approaches in Western and post-Soviet educational theory and pedagogical practice, and specified the definition and structure of global competency as a component of teachers’ professional competence. © 2016 Orazbayeva.

Balabai R.M.,The National Pedagogical University
Ukrainian Journal of Physics | Year: 2013

Distributions of valence electron density in and the electron energy spectrum of graphene nanoribbons covered with hydrogen, fluorine, or oxygen atoms have been calculated ab initio in the framework of the density functional and pseudopotential theories. The emergence of a forbidden gap for graphene nanoribbons with zigzag edges and 9.23 °A in width and its absence in an unconfined graphene plane are shown. The forbidden gap is demonstrated to decrease, as the graphene nanoribbon width increases. For graphene nanoribbons with hydrogen-decorated edges, the energy gap disappears. The interaction between a hydrogen atom and carbon atoms in the graphene nanoribbon plane that are coordinated in accordance with the sp2-hybridization is shown to induce local changes of the hybridization to the sp3 type.

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