1,721,026 research outputs found
Il rischio ambientale
No full textIl rischio ambientale chiama in causa il rapporto della società con la natura e la tecnologia. Questo volume mostra in modo puntuale come, di pari passo con l'aumento della potenza distruttiva della tecnologia, si isano venuti afffermando anche importanti strumenti che consentono di contrastarne gli effetti e indica le possibili linee immediate di intervento[...
Stress Level Assessment by a Multi-Parametric Wearable Platform: Relevance of Different Physiological Signals
Full text linkIn contemporary society, where chronic stress is increasingly prevalent, this study aims to propose a multi-parametric wearable platform suitable for real-life monitoring and to validate its ability to acquire four physiological signals relevant for the stress response (electrocardiogram, respiration, galvanic skin response, photoplethysmogram). Secondly, it seeks to conduct a statistical analysis on the derived features both to identify the physiological signals necessary for a comprehensive analysis of the stress response and to understand the distinct contribution of each one. The results obtained revealed at least two statistically significant features from each of the physiological signals considered, confirming the importance of a multi-parametric approach for an accurate stress response analysis. Additionally, the proposed statistical hypotheses allowed to determine how each physiological signal contributes differently to characterize various aspects of the stress response. For these reasons, this study could represent a benchmark for future investigations aiming to classify the stress response
Research is in the air in Valle del Serchio
Full text linkIn this paper, we will present an ongoing Citizen Science (CS) project in environmental epidemiology in five European countries focussing on the Italian pilot study conducted in the Serchio Valley (Tuscany). The area is rich in natural, cultural and historic significance, but it also suffers from environmental contamination from a variety of sources, including industry, which is a health concern for the local population. The study is framed as a Post-Normal Science (PNS) project, applying, in particular, the idea of extended peer community (EPC). The research team looked for and encouraged the engagement of local residents in all the phases of the project, from the framing of the problem to the definition of the specific research questions, the research design, the collection and analysis of data, the dissemination of results, and the drafting of policy recommendations. We discuss the novelty of our approach, the progress so far, the different types of challenges encountered and the strategies adopted to deal with them. Besides the totally unexpected problems generated by the Covid-19 pandemic, we focus on the difficulty in conforming to the requirements of standard medical ethics, which do not take into account the peculiarities of projects such as ours
Gestire l'incertezza. Il caso delle tecnologie genetiche alimentari
No full textSi affronta il tema in oggetto
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
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