Ivano-Frankove, Ukraine

The National Pedagogical University

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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.


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.


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.


Martinyuk O.,The National Pedagogical University | Pivovarchik V.,The National Pedagogical University
Inverse Problems | Year: 2010

A method of recovering the potential of the Sturm-Liouville equation on a half-interval using a known potential on another half-interval and the spectrum of the Dirichlet-Dirichlet problem on the whole interval is proposed. © 2010 IOP Publishing Ltd.


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.


Nastasiuk V.A.,The National Pedagogical University
Physica A: Statistical Mechanics and its Applications | Year: 2014

This paper is an attempt at understanding the quantum-like dynamics of financial markets in terms of non-differentiable price-time continuum having fractal properties. The main steps of this development are the statistical scaling, the non-differentiability hypothesis, and the equations of motion entailed by this hypothesis. From perspective of the proposed theory the dynamics of S&P500 index are analyzed. © 2014 Elsevier B.V. All rights reserved.


Falfushynska H.I.,The National Pedagogical University | Gnatyshyna L.L.,The National Pedagogical University | Stoliar O.B.,The National Pedagogical University
Ecotoxicology and Environmental Safety | Year: 2013

The goal of the study was to assess the adequacy of molecular responses in mollusks in relation to their in situ exposure history. Freshwater male bivalve mollusks Anadonta anatina (Unionidae) from polluted (A) and unpolluted (F) sites were subjected to 14 days of exposure to copper (Cu2+, 10μgL-1), zinc (Zn2+, 130μgL-1) or cadmium (Cd2+, 15μgL-1). The comparison of two control groups showed that the specimens from site A had higher levels of Cu, Zn and Cd and metallothionein (measured both through metal (MT-Me), and protein (MT-SH) levels) in the tissues. Cytotoxicity (low lysosomal membrane stability), low glutathione level, high antioxidant and apoptotic enzymes activities, lipid and protein oxidative injury, depletion of ethoxyresorufin-O-deethylase (EROD) in digestive gland, high vitellogenin-like protein (Vtg-LP) concentration in gonads confirmed the effect of toxic environment on this group. Exposures provoked increased number of hemocytes with micronuclei (by 100-500%) and nuclear abnormalities (by 50-400%) (genotoxicity), elevation of caspase-3 (in 1.5-10 times) and/or Vtg-LP (by 70-310%) levels in all groups. However, the responses were strongly dependent on the origin of mussels. Exposed mussels from site F demonstrated typical for the effect of toxic metals elevation of MT-SH (by 100-380%) and MT-Me (up to seven times) levels and accumulation of metals (with a few exceptions) in the tissues. Conversely, in the mussels inhabiting site A, exposures caused the decrease of metal (by 37% for Cu, by 62% for Zn, by 50% for Cd), MT-SH (by 68% in ZnA group) and MT-Me (by 50-68%) levels. That was accompanied with increase of cytotoxicity and EROD activity (by 144-240%). High level of protein carbonyls was the distinguished feature of all groups from site A. Hence, despite high efficiency of metal detoxification and oxidative stress responses in the mussels, in the specimens from spontaneously polluted site they were impaired. © 2012 Elsevier Inc.


Falfushynska H.I.,The National Pedagogical University | Gnatyshyna L.L.,The National Pedagogical University | Stoliar O.B.,The National Pedagogical University
Ecotoxicology | Year: 2013

The aim of the present study was the investigation of the effect of in situ exposure history on the responses of freshwater mussels to thiocarbamate fungicide. Male bivalve mollusks Anodonta anatina (Unionidae) from polluted (A) and unpolluted (F) sites were subjected to 14 days of exposure to fungicide Tattoo (mixture of propamocarb and mancozeb, 91 μg L-1). When unexposed mussels were compared, chronic effect of toxic environment in site A was confirmed by oxidative stress indices (high levels of superoxide dismutase and catalase activities, lipid peroxidation, protein carbonyls and oxyradical production, low level of total glutathione (GSH)), genotoxicity (high levels of DNA-strand breaks and caspase-3 activity in digestive gland), and cytotoxicity (low lysosomal membrane stability in hemocytes), elevated vitellogenin-like proteins (Vtg-LP) concentration in gonads, high levels of Cu, Zn, Cd, metallothionein (MT)-bound metals (MT-Me) and MT-related thiol (MT-SH), and low ethoxyresorufin-O-deethylase (EROD) activity in digestive gland. The major differences in the responses of the two exposed groups were related to antioxidant defense and MT: in the group A, prominent oxidative stress response with the participation of MT-SH and GSH in the gills, EROD activation, but decrease of MT-Me level was shown, whereas in group F exposure provoked the elevation of MT-Me, caspase-3 and Vtg-LP values. Carbamate did not cause cholinesterase depletion and cytotoxicity. However, genotoxic and pro-oxidant effects (increased levels of hemocytes with micronuclei and nuclear abnormalities, DNA-strand breaks and oxyradical in digestive gland), were common responses for both the exposed groups. © 2013 Springer Science+Business Media New York.


Grant
Agency: European Commission | Branch: FP7 | Program: MC-IIFR | Phase: FP7-PEOPLE-2010-IIF | Award Amount: 15.00K | Year: 2013

The main objective of the project is to bring together recent advances in semiconductor nanostructures, organic molecule self-assembling and bio-interfacing to develop a new generation of biosensors for in situ environmental monitoring and life science applications. Tunable electronic material with pores on semiconductors produced by swift heavy ion-track-based patterning forms an attractive foundation for interfacing conventional electronics with bio-active sensor compounds. Nano-sized channels of ion-track based structures modified by metal oxides in combination with a self-assembled layer of organic or bio-organic sensor layer can multiply the response of the device by many orders of magnitude as compared to conventional sensor architecture. Thus the fundamental goals of the project are nanofabrication of such state-of-the-art structures and exploring of the interactions between bio-molecules and novel nanomaterial. To fulfill objectives of the project a multidisciplinary research team is formed. The expertise of the team covers all key areas, including fabrication of the TEMPOS structures; synthesis functional organic and bioorganic molecules and self-assembling of molecular layers; structural and functional (including photo-/electro-activities) characterizations; theoretical ab initio computations. The novel reusable biosensors will allow quantitative analysis of toxins and key biomarkers important for diagnostics of liver deceases with high accuracy and reliability. The industrial partners will complement fundamental research by prototyping the biosensors and testing them in situ, thus ensuring the fast conversion of the results to production technologies.

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