1,720,971 research outputs found
Evoluzione e prospettive nel settore dei GIS: l'integrazione con le tecniche di telerilevamento
No full textPF-CNR "RAISA", Sottoprogetto 1, Area Problema 1.3, pubblicazione 306
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
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
Operational challenges in EU ecosystem condition accounts: the case of urban, agricultural and marine ecosystems
No full textFollowing the amendment to the EU Regulation on environmental economic accounts, it is expected that the compilation of ecosystem conditions accounts by Member States would be a requirement in the near future. These accounts will follow the statistical framework for the System of Environmental Economic Accounting - Ecosystem Accounting (SEEA-EA) of the United Nations. However, potential operational issues of SEEA-EA, including those of specific groups of ecosystems should be solved before its practical implementation. Our presentation introduces operational challenges for anthropogenic ecosystems (urban ecosystems and agroecosystems) and marine ecosystems identified during the development of the upcoming EU Methodology. The latter is a guidance developed by the European Commission to map and assess the condition of all ecosystem types in the EU, including those not protected under EU Nature Directives. It provides an initial basis for the identification of good condition per ecosystem type, supporting restoration actions. Anthropogenic and marine ecosystems are illustrative cases of ecosystem types that do not always fulfil assumptions valid for other ecosystems, which are useful to highlight ecosystem specific issues of SEEA-EA implementation at national and EU levels. In fact, the EU Methodology represents a first
attempt to translate the concept of restoration in a harmonised method applicable to all ecosystem types, requiring to deal with a great number of challenges. For example, the difficulty of identifying suitable reference levels for anthropogenic ecosystems, or the need to guarantee the self-regenerative capacity of ecosystems, or the problem of keeping pressures originating/impacting the ecosystems into account. Some of these challenges are shared with
other ecosystem types and lines will be drawn to them. Potential solutions investigated will be also introduced. Both challenges and potential solutions will contribute as inputs for the open round table discussions anticipated in the second part of this session
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
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