1,721,060 research outputs found
Large Transportation Project: Lessons Learned from Italian Case Studies
No full textThis chapter is aimed to the analysis of typical issues occurring during the realization of megaprojects related to infrastructures and transportation services in Italy. As it possible to expect, the variety of transportation megaprojects is extremely broad. In the first section of this paper, the author will consider some of the most significant megaprojects in the area. During the second section of the analysis, the author will better describe the features of a successful megaproject, even if it did not result with the expected outcomes: the tramway in the Bergamo valleys. After a first not exciting period of existence, this megaproject can be defined as satisfying. However, also in this case, the preliminary technical and economic analyses turned out to be excessively optimistic. This project is interesting also because it was the object of an ex-post evaluation which allows to obtain a comparison between the effectively obtained results, especially in financial and economic terms, and the evaluations made by the sponsoring actors made during the preliminary planning phase and the request for public financing
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
Paving the way to an Italian Hyperloop: a survey and analysis of main stakeholders
No full textThis research aims to investigate how the perspective of industrial stakeholder
can influence a megaproject in its earliest stage, that is an Hyperloop
development project on Italian routes.
The Hyperloop conceptualization was born in 2013 from an idea of Elon
Musk (Taylor et al., 2013), who first described it as a new mode of
transport, the fifth, in addition to car, plane, train and ship. The goal was to
create an alternative means of transport both cheap and fast. The infrastructure
consists of capsules, for passengers and/or freight, inserted in a low pressured tube, in order to limit the aerodynamic resistance, and to accelerate
them by means of magnetic levitation linear accelerators (NOACA,
HTT. AND TEMS, 2019). Most of the feasibility studies up to now realized,
provide HY to be powered entirely by solar energy, or at least renewable.
Moreover, since very little energy will be consumed by HY due to air resistance
(NOACA et al., 2019), surplus energy can be stored and reused,
thus making the infrastructure sustainable.
To date, numerous feasibility studies have been carried out, highlighting
the engineering and technological feasibility of the system (Van Goeverden
et al., 2018; NOACA et al., 2019; AECOM, 2020).
By analyzing a project such as Hyperloop, the Author recognizes that
stakeholders will play a key role. In fact, large projects as HY, have impacts
on a wide range of stakeholders (interested in the project both from the point
of view of the realization of the infrastructure and its future use), who will
express perceptions and judgements about the infrastructure not only before,
during and at the end of the construction phase, but also over the months,
years, and even decades following project completion (Turner et al., 2012)
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
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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