1,721,028 research outputs found
Special section "Going About the City: Methods and Methodologies for Urban Communication Research"
No full textThis introduction to the special section on methods and methodologies for urban communication research discusses major approaches to conceptualizing and researching the relationship between cities and communication. We underline the increasing significance of scholarship on the various ways in which city dwellers relate to each other and their urban environment through symbolic, technological, and material means. We then argue that a systematic conversation on the methodological principles, protocols, and practices that set apart this burgeoning area of inquiry is not only timely, but also much needed. With this objective in mind, we invited a group of scholars to reflect on the key questions, instruments, challenges, and contributions of documentary, audiencing, material, visual, mixed-method, ecological, and applied perspectives on urban communication. Based on the seven articles included in the special section, we propose three distinct but interrelated conceptual heuristics—the city as context, the city as medium, the city as content—that highlight the importance of cities as both producers and products of particular practices, interactions, and narratives. We finally conclude that, vis-à-vis research on the automatic production of urban space, urban communication scholarship may contribute to strengthening a broader research agenda rooted in an understanding of communication as a human endeavor
Etnografia virtuale e convergenza. Spazi, tempi, discorsi e pratiche della tv sul web
No full textUna trattazione approfondita delle questioni teoriche, metodologiche e operative che riguardano la virtual ethnography negli spazi online legati a programmi, reti e offerte televisive
Impatto energetico-ambientale della logistica globale di approvvigionamento per un'azienda industriale
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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
Zeolitic-type Bronsted-Lowry sites distribution imaged on clinochlore
No full textAlthough Bronsted-Lowry (B-L) sites in solids, such as zeolites, have been studied extensively, all previous investigations were conducted on a bulk (average) basis. In contrast, the imaging and distribution of B-L sites on atomic flat Al-rich chlorite are presented by using Scanning probe and Kelvin probe force microscopy. These techniques are used to correlate, at the nanoscale, the contrast due to the surface potential (related to the B-L proton) with the surface morphology and crystal chemistry. Quantum mechanical modeling (DFT) is consistent with the experimental results.
Imaging of the distribution of B-L sites in solids and the existence of two-dimensional (2D) arrays of zeolitic-type B-L sites in chlorites is shown. The study demonstrates the general validity of the Bronsted-Lowry acid-base theory extended to pure solids without any solution medium. The experimental approach developed here can facilitate the search of B-L site architectures in minerals
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
Do the Media Refuse Refused Knowledge?
Full text linkThis chapter examines trends in the coverage and framing of the reporting of refused knowledge across Italian mainstream newspapers. Taking into consideration the media are relevant for the analysis of RKCs, firstly given RKC followers’ beliefs that media outlets are to be considered the ‘in-house organs’ of the scientific elites, and as such an inherently untrustworthy source of information. This chapter will enquire into media treatment of refused knowledge, in eight major Italian newspapers, with a view of analysing the extent to which the media address and/or reject refused knowledge attributable to the four RKCs examined in this volume. The focus is on the issues advocated by four RKCs concerned in two interconnected ways: a quantitative presentation of coverage through a longitudinal analysis, highlighting an agenda-cutting process, and a qualitative account produced by means of content analysis addressing the issue of the institutionalisation of scientific knowledge through the delegitimation of RKC claims. This content analysis enables us to consider the framing of the coverage and whether it reinforces science or opens up to public questioning of scientific knowledge. The chapter concludes by providing a balanced view of the institutionalisation-discreditation dichotomy as the output of the media representation of refused knowledge
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