7,488 research outputs found

    Coal mining areas: environmental issues and solutions (on the example of Kuzbass)

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    Rozdział z: Functioning of the Local Production Systems in Central and Eastern European Countries and Siberia. Case Studies and Comparative Studies, ed. Mariusz E. Sokołowicz.Having survived restructuring period during which the volume of production halved, since 1999 the coal industry has seen a significant growth of its production. However, the positive trends are accompanied by negative impacts for the environment. Further growth of coal has its limits both from economic and ecological points of view. This paper focuses on the environmental side of the issue, particularly on problems of emissions and wastes producing by coal mining and withdrawal of lands from land use. For Kuzbass as the first in Russia coal mining area, the impact of the coal industry on the environment is excessive, and consequently those problems are particularly acute. To solve the complex of environmental issues, it is necessary to raise environmental performance to a new qualitative level. That will require more financial, technological legislative and managerial decisions.Monograph financed under a contract of execution of the international scientific project within 7th Framework Programme of the European Union, co-financed by Polish Ministry of Science and Higher Education (title: “Functioning of the Local Production Systems in the Conditions of Economic Crisis (Comparative Analysis and Benchmarking for the EU and Beyond”)). Monografia sfinansowana w oparciu o umowę o wykonanie projektu między narodowego w ramach 7. Programu Ramowego UE, współfinansowanego ze środków Ministerstwa Nauki i Szkolnictwa Wyższego (tytuł projektu: „Funkcjonowanie lokalnych systemów produkcyjnych w warunkach kryzysu gospodarczego (analiza porównawcza i benchmarking w wybranych krajach UE oraz krajach trzecich”))

    BETULA PENDULA ON THE IRON ORE DUMPS OF THE KRYVYI RIH

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    Thus, Betula pendula is actively colonization on the technogenically disturbed landscapes of Kryvyi Rih and is capable of self-healing, so it can be considered perspective for the landscaping of technogenic landscapes without use of expensive remediation methods

    How to draw a line between journalism and propaganda in the information wars era? Case note on the Judgment of the General Court of 15 June 2017 in Case T-262/15 Dmitrii Konstantinovich Kiselev v Council of the European Union. College of Europe Case Notes 02/2018

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    In recent years, we have been able to observe a shift in the EU’s sanctions policy from broad economic sanctions, affecting the entire population of the country, to more targeted sanctions, directed at individuals connected to problematic political regimes1. Those restrictive measures have immediate effects on the individuals concerned and are, at times, capable of jeopardising their lives. A number of cases, including the seminal judgement in the Kadi and Al Barakaat2 cases, have shown that those sanctions can be challenged before the Court of Justice of the EU (CJEU) from a fundamental rights perspective and that EU standards in relation to the right to a hearing, judicial protection and property cannot be abrogated.3 The recent Kiselev4 case provides a good opportunity to analyse how the EU is coping with its difficult task of striking a balance between different competing interests: foreign policy objectives, international law obligations and fundamental rights. Following the settled case-law on sanctions, the General Court had to analyse whether the freedom of expression, as one of the fundamental rights protected by EU law and by the European Convention on Human Rights (ECHR), could be restricted in the interest of foreign policy objectives. The Kiselev judgment follows the line of recent similar judgements on sanctions and can be viewed, to some extent, as a missed opportunity to further analyse the differences between propaganda and journalism

    The determinants of sovereign bond yield spreads in the EMU

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    Mestrado em Economia Monetária e FinanceiraUm conjunto de dados de painel de países da área do euro foi utilizado para avaliar os determinantes dos spreads de rentabilidade de títulos soberanos do primeiro trimestre de 1995 ao último trimestre de 2017. No período anterior à crise financeira, os spreads foram determinados principalmente pela dívida esperada em relação ao PIB, fator de risco de crédito e crescimento econômico. Com a erupção da crise financeira, a análise sugere que os mercados começaram a levar em consideração mais fundamentos para determinar o preço dos spreads, como risco de liquidez e risco internacional. Concluiu-se também que existe uma diferença entre os determinantes do spread entre o grupo periferico e o grupo central.A panel dataset of euro area countries was used to assess the determinants of sovereign bond yield spreads from first quarter of 1995 to the last quarter of 2017. In the period before the financial crisis, the government bond yield spreads were mostly determined by the expected debt to GDP, the credit risk factor and economic growth. With the eruption of the financial crisis, the analysis suggests that markets have started to take into consideration more fundamentals to determine the price of government bond yield spreads, such as liquidity risk and international risk. It was also concluded that there is a difference between the determinants of the government bond yield spread of core and periphery group.info:eu-repo/semantics/publishedVersio

    Singular Behavior of Electric Field of High Contrast Concentrated Composites

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    A heterogeneous medium of constituents with vastly different mechanical properties, whose inhomogeneities are in close proximity to each other, is considered. The gradient of the solution to the corresponding problem exhibits singular behavior (blow up) with respect to the distance between inhomogeneities. This paper introduces a concise procedure for capturing the leading term of gradient's asymptotics precisely. This procedure is based on a thorough study of the system's energy. The developed methodology allows for straightforward generalization to heterogeneous media with a nonlinear constitutive description

    Exact asymptotics of the uniform error of interpolation by multilinear splines

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    The question of adaptive mesh generation for approximation by splines has been studied for a number of years by various authors. The results have numerous applications in computational and discrete geometry, computer aided geometric design, finite element methods for numerical solutions of partial differential equations, image processing, and mesh generation for computer graphics, among others. In this paper we will investigate the questions regarding adaptive approximation of C2 functions with arbitrary but fixed throughout the domain signature by multilinear splines. In particular, we will study the asymptotic behavior of the optimal error of the weighted uniform approximation by interpolating and quasi-interpolating multilinear splines

    Central limit theorems in linear structural error-in-variables models with explanatory variables in the domain of attraction of the normal law

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    Linear structural error-in-variables models with univariate observations are revisited for studying modified least squares estimators of the slope and intercept. New marginal central limit theorems (CLT's) are established for these estimators, assuming the existence of four moments for the measurement errors and that the explanatory variables are in the domain of attraction of the normal law. The latter condition for the explanatory variables is used the first time, and is so far the most general in this context. It is also optimal, or nearly optimal, for our CLT's. Moreover, due to the obtained CLT's being in Studentized and self-normalized forms to begin with, they are a priori nearly, or completely, data-based, and free of unknown parameters of the joint distribution of the error and explanatory variables. Consequently, they lead to a variety of readily available, or easily derivable, large-sample approximate confidence intervals (CI's) for the slope and intercept. In contrast, in related CLT's in the literature so far, the variances of the limiting normal distributions, in general, are complicated and depend on various, typically unknown, moments of the error and explanatory variables. Thus, the corresponding CI's for the slope and intercept in the literature, unlike those of the present paper, are available only under some additional model assumptions.Comment: Published at http://dx.doi.org/10.1214/07-EJS056 in the Electronic Journal of Statistics (http://www.i-journals.org/ejs/) by the Institute of Mathematical Statistics (http://www.imstat.org
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