1,721,005 research outputs found
Estimating demand for irrigation water in European Mediterranean countries through MCDM models
No full textThis paper reports results from the European project WADI which evaluates the sustainability of the European
irrigation sector under different policy scenarios. Results presented are based on the generation of farm level water demand curves through multicriteria mathematical programming models. The results are compared across regions and matched against a review of water pricing policies that were in place in various European Union member states and accession countries prior to the entering into force of the Water Framework Directive (WFD). The results emphasise the variability of behaviour of irrigated systems and the need for a more clear understanding of policy objectives before implementing any policy instrument. Once the objectives are clarified, economic models can contribute to understanding the appropriateness of different management strategies and to the effectiveness of different policy instruments
Agricultural and Environmental Informatics, Governance and Management: Emerging Research Applications
No full textThis book is a state-of-the-art reference book that explores how rural policymakers and stakeholders can use information and communication technologies to sustainably manage agricultural and natural resource
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
Full text linkWe 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
Water Management and Institutional Adaptation Strategies in the Irrigation Sector: Two Experiences in Emilia-Romagna
No full textClimate change is putting pressure on economic sectors, especially agriculture, because of the increase of extreme events, like water scarcity and droughts, that call for impellent adaptation strategies in water management oriented toward the lining of water demand up to future water availability. The EU institutions have worked intensely in recent years for defining a policy guidance on the quantitative management of water resources to complement the Water Framework Directive. The outcome is a Blueprint for the safeguard of water resources which stresses, inter alia, the necessity of implementing in the recent future measures that induce a more rational use of water resources such to reduce the inefficiencies and to improve the allocation mechanisms by fostering, whenever possible, the equalization between water needs and economic values of water use. The chapter proposes the study of two experiences of irrigation water management in the Italian region of Emilia-Romagna whose outcomes thoroughly reflect the achievement of the recent policy objectives. The first is the case of the irrigation district Tarabina, in which a change in the tariff system from area-based to volume-based has yielded a more equitable distribution of water and related costs among users along with a remarkable reduction in water use. The second is the experience of the institution of voluntary irrigation boards for the management of small water harvesting catchments and related infrastructures whose governance is inspired by use efficiency criteria, with an opening toward the allocation mechanism of water transfers. A polyhedric approach for the management of water resources in the light of climate change is essential for the correct analysis of current issues and for the implementation of suited adaptation strategies that reflect the potentialities of governance improvements in line with the recommendations provided by the EU institutions
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
- …
