154 research outputs found

    Popularity of species of polypores which are parasitic upon oaks in coppice oakeries of the South-Western Central Russian Upland in Russian Federation

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    The article deals with research of popularity of polypores species (Polyporaceae sensu lato), which are parasitic upon living English oaks Quercus robur L. in coppice oakeries of the South -Western Central Russian Upland in the context of their eco-biological peculiaritie

    Eco-morphologic Aspects of Differentiation and Identification of Species Armillaria mellea Sensu Lato in Coppice Oakeries of Belgorod Region for the Purposes of Exploitation of Natural Resources

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    The article deals with matters of differentiation and identification of species of the complex Armillaria mellea sensu lato in loco in coppice oakeries of Belgorod region in Russian Federation. On the basis of results of comparison of local ecomorphotypes descriptions and known descriptions of Armillaria mellea s. l. European species it was stated that in Belgorod region’s oakeries there are two species belonging to the complex Armillaria mellea s. l.: Armillaria cepistipes and Armillaria gallic

    Agrolandscape ecotones potential for rational nature management

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    The article deals with matters of studying mechanisms of agrolandscapes adaptation to dynamic environment based on using environment - forming and environment - stabilizing potential of such landscape components as ecotones. Premised on results of ecotones research, obtained by the authors in the territory of Russia’s forest - steppe zone, the article suggests optimal parameters of the protective fo rest plantation system inclusive of ecotone

    A new ab initio potential energy surface for the collisional excitation of N2H(+) by H2

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    10 pags.; 14 figs.© 2015 AIP Publishing LLC. We compute a new potential energy surface (PES) for the study of the inelastic collisions between N2H+ and H2 molecules. A preliminary study of the reactivity of N2H+ with H2 shows that neglecting reactive channels in collisional excitation studies is certainly valid at low temperatures. The four dimensional (4D) N2H+–H2 PES is obtained from electronic structure calculations using the coupled cluster with single, double, and perturbative triple excitation level of theory. The atoms are described by the augmented correlation consistent triple zeta basis set. Both molecules were treated as rigid rotors. The potential energy surface exhibits a well depth of ≃2530 cm−1. Considering this very deep well, it appears that converged scattering calculations that take into account the rotational structure of both N2H+ and H2 should be very difficult to carry out. To overcome this difficulty, the “adiabatic-hindered-rotor” treatment, which allows para-H2(j = 0) to be treated as if it were spherical, was used in order to reduce the scattering calculations to a 2D problem. The validity of this approach is checked and we find that cross sections and rate coefficients computed from the adiabatic reduced surface are in very good agreement with the full 4D calculationsThis research was supported by the CNRS national program “Physique et Chimie du Milieu Interstellaire.” F.L. and Y.K. also thank the Agence Nationale de la Recherche (ANR-HYDRIDES), contract No. ANR-12-BS05-0011-01. We acknowledge Laurent Pagani for stimulating this work.Peer Reviewe

    Opportunities for the analysis of the spatial ecological structure of the mycobiota of macromycetes of a natural-territorial entity (the case of the Botanical Garden of Belgorod University, Belgorod, Russia)

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    On the basis of direct observations, the general principles of the organization of the mycobiota of the macromycetes of the natural-territorial formation "Botanical Garden" of Belgorod State University (Belgorod, Russian Federation) have been clarified. Based on the clarified principles, a scheme of their spatial ecological organization has been constructed: mycobiota - mycohore (mycocenosis, mycoaggregation) - mycosinium-3 - mycocenocells - mycocell. The obtained results can be used to study the spatial ecological organization of mycobiota macromycetes of other natural-territorial formation

    Trans-species relation in communities of pathogenic Polyporaceae on pedunculate oak Quercus robur L

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    In the process of research phytopathological and mycocenological methods were used As a result of the research, real trans-species relation were revealed in the most common and frequently occurring types of PPF on oak within various communities: Mutually positive type relationships based on the proto-operation were found between Laetiporus sulphureus and Fistulina hepatica. Neutral type relationships were found in between Fistulina hepatica and Fomitiporia robusta, Laetiporus sulphureus and Fomitiporia robust

    Assessing the Financial Stability of Electric Power Organizations

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    Nowadays the economic processes in any world economy are carried out at a rapid pace. They have a strong influence on the activities of companies. In this regard, the electric power companies have faced the issue of increasing the efficiency of companies and reducing the degree of dependence on external factors. Moreover, the successful operation of the majority of modern branches of the national economy depends on the efficient and smooth performance of this business. The purpose of the study is to improve the financial stability indicators of electric power companies. The base of the conducted study includes both general scientific and empirical methods: analysis, synthesis, generalization, modeling, observation, description, measurement, and comparison and the case method, which allow broadening the authors' understanding of the financial stability of the business, proposing its main criteria, and studying the aspects of the financial stability of business exemplified by electric power companies. The study carried out by the authors shows that the financial stability of the country is inextricably linked to the financial stability of organizations. Therefore, they need to be evaluated jointly. The relationship between macroeconomic indicators and the financial stability of business is defined by the authors. The concept of financial stability at the macro and micro levels is generalized. The indicators of financial diagnostics of organizations, characterizing their financial stability have been revealed. A model has been developed that allows determining the degree of the financial stability of electric power companies. The proposed model enables the selection of the most stable and steadily functioning electric power companies out of the significant number of ones in conditions of the uncertainty of the external environment. The results obtained by the authors will give an opportunity to identify not only the most stable business in the electric power industry but also, as a consequence, to determine the most attractive business model that should be adapted to other regions to minimize the adverse effects of situations related to uncertainty. Keywords: financial stability, indicators, financial conditions, business model, electric power companies. JEL Classifications: D24; Q43; M31 DOI: https://doi.org/10.32479/ijeep.772

    Estimates for the Haar measure of the sets of -adic numbers in which the integer polynomials have small norm

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    Получены оценки меры Хаара множеств p-адических чисел, в которых целочисленные полиномы имеют малую норму

    Analysis of the Procedure for Confirming the Conformity of Alcoholic Beverages in Accordance with the Requirements of the Technical Regulations of the EAEU TR 047

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    Статья посвящена анализу и разработке алгоритмов подтверждения соответствия алкогольной продукции в соответствии с требованиями технического регламента ТР ЕАЭС 047: алгоритм декларирования алкогольной продукции и алгоритм сертификации алкогольной продукции.The article is devoted to the analysis and development of algorithms for confirming the conformity of alcoholic beverages in accordance with the requirements of the technical regulations of the EAEU TR 047: the algorithm for declaring alcoholic beverages and the algorithm for certifying alcoholic beverages
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