1,721,006 research outputs found
Using the validation data of smart cards to better design public transport networks
No full textThe paper aims at defining an algorithm able to build the origin-destination matrix from the check in data collected in the extra-urban area of Torino, where thousands of people commute everyday using smart-cards to validate their travel documents while boarding. To this end, the methodological approach relied on a survey along three months to record smart-card validations. Peak and off-peak periods have been defined according to the validation frequency. Then, the origin-destination matrix has been estimated using the time interval between two validations to outline the different legs of the journey. Finally, the transport demand has been matched with the existing services showing which areas were not properly covered by public transport. The results of this research would assist public transport operators and local authorities in the design of a more suitable transport supply in accordance with users’ needs
On the Ride Comfort Effect of Unsprung Mass Reduction Using a Composite Wheel Rim
No full textIs it possible to feel the difference in terms of comfort and handling between wheel rims having the same size but different weight in a sports vehicle? It is well known that reducing the unsprung mass has a positive effect both on vertical accelerations and forces transferred from the ground to the body of the vehicle. In the present study, a simplified quarter car model is exploited to quantify the real advantage of using composite wheel rim instead of aluminium one for a sports vehicle. Despite the common belief, a reduction of more than 12 kg of the unsprung mass leads to a reduction of less than 1% of the vertical force oscillation; unfortunately, this positive effect is not perceived by the occupants. The influence of the damping parameter on the dynamic response is critically discussed. © 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG
Analisi delle interazioni acqua-sedimento-macrofite in ambienti umidi perifluviali della Pianura Padana centrale
No full textVulnerabilità di un ecosistema umido relitto rispetto a carichi inquinanti: evidenze da un indagine pluriennale di parametri idrochimici, sedimenti e vegetazione acquatica
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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
The "Lived Theatre" of Gisèle Vienne in Jerk
No full textLa franco-austriaca Gisèle Vienne, una delle artiste più famose d'Europa, coreografa e regista, laureata in filosofia e – appassionata di Bataille oltre che dell'arte del burattino – ha spesso portato in scena questo attori di legno e stoffa.,
Oggetto di analisi qui è la scrittura drammaturgica e scenica e l'interpretazione attoriale di Jerk (2008-2018), nata dalla prima collaborazione – diventata poi regolare – tra Gisèle Vienne e lo scrittore americano Dennis Cooper – autore della drammaturgia – e il burattinaio Jonathan Capdevielle. Capdevielle si presenta come un «burattinaio imbroglione» perché finge di essere David Brooks, che fu complice – insieme a Elmer Wayne Henley – di Dean Corll, di una famosa storia nera americana degli anni Settanta, gli Houston Mass Murders
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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