1,721,043 research outputs found

    The Guadiana basin

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    Copyright © Dr Jaroslav Mysiak, 2010. Published by Taylor & Francis.Depto. de Geodinámica, Estratigrafía y PaleontologíaFac. de Ciencias GeológicasTRUEpu

    Green Energy Certificates and Compliance Market

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    In the economies striving for low-carbon footprint hydropower plays an important role, as one of few sources of renewable energy for which the technology is available, affordable, and reliable. Hydropower is an important source in the mix of renewable energy sources (RES) on the pathway to meet the ambitious targets set in the EU Directive 2009/28/EC and the Europe 2020 strategy. However, hydropower development may impair the integrity of water courses and river health, in contrast to the objectives of the Water Framework Directive (2000/60/EC). In this chapter we review a mix of economic policy instruments, designed separately and at least partly for different purposes, but all acting together in a way hydropower potential was exploited in Italy. Feed - in tariffs (FIT) and especially tradable green energy certificates (GEC) had been introduced to build supply-side competition among the RES and to curtail the costs of renewables. The actionable concession award or operating large hydropower plants are an opportunity to coerce environmental improvement. Yet these opportunities have not been used so fa

    Water Tariffs in Agriculture: Emilia Romagna Case Study

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    The chapter presents changes in the irrigation tariff system of the irrigation district Tarabina, in the Emilia Romagna Region, Italy. In order to improve the management of the irrigation water resources (distribution of water and related costs), in 2006 the users voluntarily replaced the area-based payment (a fi nancial instrument) with a volumetric tariff (EPI) and introduced a set of formal rules. In the following years, a reduction in water use at district level has been observed. Such an outcome has aroused a particular interest in studying the contribution of the volumetric tariff, intended as an EPI, on the reduction of water use. The capability of such an EPI in reducing the amount of water used in agriculture would strengthen the policy intentions of the EU of implementing measures that induce a more effi - cient use of water resources. Based on a counterfactual analysis, it has been found that the introduction of the volumetric tariff induced a reduction, on average, of about 50 % of the water used for irrigation along with a reduction of about 70 % of the costs for the non-irrigators. Such fi ndings suggest that EPIs, associated to other instruments, such as site-specifi c regulations, might improve their effectiveness and pursue multiple policy goals

    Robust institutions for sustainable water markets: A survey of the literature and the way forward

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    Robust institutions for sustainable water markets: A survey of the literature and the way forward / Alexandros Maziotis,  Elisa Calliari & Jaroslav Mysiak. FEEM, 2013, 37 p. (Nota di lavoro ; 2013.058) http://www.feem.it/userfiles/attach/201361994014NDL2013-058.pdf Abstract (© FEEM) : This paper discusses a framework for analyzing robust institutions for water markets drawn on the new institutional economics school of thoughts which is based on Williamson, North, Coase and Ostrom theories on ..

    Robust institutions for sustainable water markets: A survey of the literature and the way forward

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    Robust institutions for sustainable water markets: A survey of the literature and the way forward / Alexandros Maziotis,  Elisa Calliari & Jaroslav Mysiak. FEEM, 2013, 37 p. (Nota di lavoro ; 2013.058) http://www.feem.it/userfiles/attach/201361994014NDL2013-058.pdf Abstract (© FEEM) : This paper discusses a framework for analyzing robust institutions for water markets drawn on the new institutional economics school of thoughts which is based on Williamson, North, Coase and Ostrom theories on ..

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed

    Variations on the Author

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    “Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship

    Appropriate Similarity Measures for Author Cocitation Analysis

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    We provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis

    Dispelling the Myths Behind First-author Citation Counts

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    We conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more sophisticated methods
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