1,721,102 research outputs found
Reference measurement system for low electrolytic conductivity values with a flowing solution
No full textIn order to answer the needs of the industrial and the clinical sectors, INRiM has undertaken activities to extend the traceability of electrolytic conductivity measurements to pure water values. In this progress report, the new cell and the measurement system with flowing solution are described. Since international documents prescribe the use of a system with flowing solution to reduce CO2 contamination for solutions with conductivity lower than 50 mu S cm(-1), preliminary measurements were carried out on three solutions with conductivity values of 50, 30 and 10 mu S cm(-1). Moreover, a comparison between a system with static solution and one with flowing solution was executed
The National Park of La Maddalena: Estimates of the Econoic aspects of a Protected Area
No full textThis paper carries out a comparative evaluation of the various alternatives which make up the available or hypothetical different models for use of the National Park of La Maddalena. These form part of the various initiatives - listed in the work - proposed for tourist exploitation in a sustainable way. The evaluation applies the non-monetary multi-criteria analysis known as Regime analysis. The final grading alternatives is related to how well they meet the objectives which have been identified as the criteria for evaluation. The study offers helpful indications about priorities for practical initiatives to exploit the area collectively
La valutazione della sostenibilità attraverso l'impronta ecologica: un'analisi empirica
No full text
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
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