1,720,959 research outputs found

    Prime evidenze sul Carpooling in Italia: chi, dove e quando

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    Le pratiche di mobilità innovativa (carsharing, carpooling, mobilità elettrica, etc.) mostrano una sempre maggiore penetrazione nel mercato italiano. Sebbene ancora marginali in termini di mobilità complessiva, esse rappresentano nicchie sempre più importanti in alcuni contesti, oltre che un’interessante fonte di informazioni sulle pratiche di mobilità. In questo articolo viene presentato e studiato un primo campione di dati raccolto dalla più conosciuta piattaforma web per il carpooling (BlaBlaCar). Il duplice fine che ci si propone è quello di poter, da un lato, comprendere meglio quali siano le dinamiche e la diffusione del servizio a scala nazionale e, dall'altro, di ottenere alcune informazioni sul segmento della mobilità meno noto alle statistiche, cioè la mobilità occasionale di lunga percorrenza. I primi risultati ottenuti mostrano come gli utilizzatori del servizio rappresentino ancora una quota marginale degli spostamenti che interessano la nostra penisola, ma diano utili indicazioni sulle attuali pratiche di mobilità. I viaggi offerti, ad esempio, si svolgono su distanze medie nell'ordine dei 300 km e sono maggiori a nord rispetto al resto della penisola. Inoltre, presentano diversi pattern di distribuzione settimanale a seconda del luogo di origine, così come una diversa diffusione geografica. Le grandi città, Milano in primo luogo, generano viaggi su aree molto ampie, mentre i capoluoghi di provincia presentano catchment area molto più limitate e polarizzate

    Long-distance rail prices in a competitive market. Evidence from head-on competition in Italy

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    Rail liberalisation is far from homogeneous across Europe. Italy, thanks to a process started well before the European deadlines, is now one of the most interesting continental markets, at least limited to long-distance segment. The paper aims at understanding the pricing strategies of the two domestic Italian rail companies, with a focus on price discrimination using traditional methods and yield management. We are also investigating if price levels depend on the type of route and in particular on the presence or absence of intra-modal competition. Methodologically, the paper computes the price-per-km and the price dispersion for about thirty OD pairs in Italy for nearly two years, using observed prices. Routes cover the entire mainland of the country and represent different situations in terms of high-speed/conventional infrastructure and competition. We find that incumbent's prices are higher than the competitors. However, the incumbent is not applying higher prices on non-competing routes. This fact tells us that competition is not the only element ruling the prices, but also demand, capacity, users' willingness to pay, and obviously distance. These considerations are also useful to understand the network-strategy followed until now by the newcomer and what could happen in the future

    Distretto Culturale Evoluto Flaminia NextOne : innovazione tecnologica per l’archeologia e la valorizzazione digitale della Via Flaminia e di Forum Sempronii

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    The Via Flaminia DCE project starts from the recognition of the uniqueness and the identity value of the territory crossed by the Roman road which, since ancient times, has represented an important communication axis and seat of economic ferment. This system, unique in its specific features and vocations, can become an incubator for the “production of a new culture”, thus allowing us to integrate new knowledge, new technologies and new professional skills in order to enhance the existing heritage, giving it new life. In this feature the Cultural heritage can be the fertile ground in which the productive system can look for new ideas, capable of activating a process of innovation and economic and social development. In this respect we planned four pilot projects, the first of which, The Flaminia Museum, was built in the San Michele Church of Fano and aims to virtually reconnect the Roman archaeological heritage scattered along the Via Flaminia, through immersive technologies for communication and monitoring. The other three pilots are planned at the sites of the Furlo Gorge, the Cagli Museum and the Forum Sempronii Archaeological Park, key points along the route of the ancient consular road in the Marche region

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

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    “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

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    We 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

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    We 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

    Author Index

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    koamabayili/VECTRON-author-checklist: VECTRON author checklist

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    We 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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