1,720,960 research outputs found
Potenzialità e criticità del bike sharing nelle città di piccola-media dimensione. Il caso di Trieste
No full textL’uso del bikesharing rappresenta una delle modalità alternative all’auto privata che sta riscuotendo successo in Italia. Tuttavia, la distribuzione di questi servizi rimane disomogenea, con evidenti limitazioni nelle città di medie e piccole dimensioni, che costituiscono il tessuto urbano più diffuso nel Paese. Per questo, questo studio ha l’obiettivo di analizzare il servizio di bike sharing a Trieste, introdotto nel 2020, al fine di individuare determinanti e criticità attraverso una raccolta dati tramite questionario.
I risultati mostrano un generale apprezzamento del servizio e una forte intenzione di proseguirne l’utilizzo. Tra i principali fattori di successo emergono una maggiore capillarità delle stazioni, il miglioramento della qualità dei modelli di biciclette e un’applicazione più intuitiva, capace di gestire tempestivamente eventuali imprevisti. Tuttavia, sono state riscontrate criticità legate al malfunzionamento di stalli e biciclette, in parte riconducibili anche ad atti di vandalismo.
I dati raccolti consentiranno di avanzare proposte di policy rivolte all’amministrazione locale, che comprendono non solo interventi di miglioramento del servizio, ma anche la realizzazione di piste ciclabili protette e ben segnalate. Contestualmente, sono state formulate indicazioni per la collettività, al fine di promuovere comportamenti più rispettosi nei confronti del servizio e favorire una sinergia costruttiva con l’amministrazione locale
La mobilità su rotaia per le spedizioni di merci agroalimentari: il caso del gruppo Barilla
No full textIn Italia, nel 2020, il settore agroalimentare è stato il primo settore ad aver impiegato la mobilità su rotaia per la spedizione di merci, nonostante la mobilità su gomma rimanga nettamente prevalente, con evidenti esternalità negative in termini di sicurezza sulle strade e di impatto ambientale. Tuttavia, l’impiego della mobilità su rotaia per le spedizioni di merci agroalimentari merita una maggiore attenzione, soprattutto per la portata che il settore agroalimentare rappresenta per l’economia italiana, oltre che all’importanza di investire in forme di mobilità più sostenibili per il traffico merci.
Al fine di contribuire in parte al dibattito in corso, il presente elaborato tenterà di analizzare l’attuale tendenza di sviluppo della mobilità su rotaia nella spedizione di merci, enfatizzando maggiormente gli aspetti riguardanti le spedizioni di merci agroalimentari.
A tal fine, la ricerca verrà condotta su due livelli di analisi. Dapprima, l’analisi sarà condotta a livello macro, per cogliere gli aspetti e le attuali tendenze di sviluppo della mobilità su rotaia per la spedizione di merci in senso aggregato. Successivamente, l’analisi sarà condotta a livello settoriale, con l’obiettivo di focalizzarsi sulle tendenze in atto nell’ambito dei traffici di merci agroalimentari tramite mobilità su rotaia, cogliendo i vantaggi e gli svantaggi che possono condizionare tale scelta. Infine, il presente elaborato proporrà l’analisi del caso di studio del Gruppo Barilla, un’azienda multinazionale agroalimentare, che a partire dal 2015 ha implementato un nuovo progetto di mobilità su rotaia per il traffico interno di materie prime e, dal 2020, per le spedizioni di prodotti finiti del suo portfolio
The role of linear green infrastructure in perceived cycling safety: insights from Berlin
Get PDFPurpose: This study aims to investigate how different attributes of cycling infrastructure, with a particular focus on linear green infrastructure (LGI), influence cyclists’ perceptions of safety.
Design/methodology/approach: An online survey was conducted with 25,334 residents of Berlin, who rated a series of hypothetical urban cycling scenarios characterised by key attributes, including the presence of LGI. A hybrid mixed logit (HMXL) model was used to analyse the data, integrating both observed and latent psychological factors.
Findings: The results highlight that LGI plays a critical role in improving cyclists’ perceptions of safety, particularly for vulnerable social groups (i.e. women, older cyclists, those traveling with children) who are more risk-averse. LGI is also particularly effective in mixed-traffic environments. While infrastructure width and the absence of commercial activity also influence safety perceptions, this study further suggests that well-designed cycling infrastructure, incorporating LGI, can increase the safety perceptions of more reluctant cyclists to ride in unfavourable weather conditions.
Practical implications: This study highlights the importance of investing in LGI, especially in areas with limited cycling infrastructure. In these contexts, the presence of LGI significantly enhances the perceived safety of cyclists, particularly for vulnerable social groups. Prioritising LGI in less-developed urban areas can have a large impact on increasing cycling adoption and improving safety perceptions.
Originality/value: This study contributes to the literature by examining the specific role of LGI in enhancing cycling safety perceptions by estimating a HMXL model, a novel methodological approach that deepens the understanding of the psychological and infrastructural factors influencing cycling behaviour
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Get PDFWe 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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