1,720,973 research outputs found
Influenza turistica su produzione, composizione e raccolta dei rifiuti solidi urbani: elaborazioni di studio – Riviera Adriatica (Provincia di Rimini).
No full textInteraction “Tourism – MSW”: Elaborations for the relevant case-study “Adriatic Riviera” (Province of Rimini, Italy)
No full textEffects of a temporary HDPE cover on landfill gas emissions: Multiyear evaluation with the static chamber approach at an Italian landfill
No full textAccording to the European Landfill Directive 1999/31/EC and the related Italian Legislation (‘‘D. Lgs. No.
36/2003”), monitoring and control procedures of landfill gas emissions, migration and external dispersions
are clearly requested. These procedures could be particularly interesting in the operational circumstance
of implementing a temporary cover, as for instance permitted by the Italian legislation over
worked-out landfill sections, awaiting the evaluation of expected waste settlements.
A possible quantitative approach for field measurement and consequential evaluation of landfill CO2,
CH4 emission rates in pairs consists of the static, non-stationary accumulation chamber technique. At
the Italian level, a significant and recent situation of periodical landfill gas emission monitoring is represented
by the sanitary landfill for non-hazardous waste of the ‘‘Fano” town district, where monitoring
campaigns with the static chamber have been annually conducted during the last 5 years (2005–2009).
For the entire multiyear monitoring period, the resulting CO2, CH4 emission rates varied on the whole
up to about 13,100 g CO2 m2 d1 and 3800 g CH4 m2 d1, respectively.
The elaboration of these landfill gas emission data collected at the ‘‘Fano” case-study site during the
monitoring campaigns, presented and discussed in the paper, gives rise to a certain scientific evidence
of the possible negative effects derivable from the implementation of a temporary HDPE cover over a
worked-out landfill section, notably: the lateral migration and concentration of landfill gas emissions
through adjacent, active landfill sections when hydraulically connected; and consequently, the increase
of landfill gas flux velocities throughout the reduced overall soil cover surface, giving rise to a flowing
through of CH4 emissions without a significant oxidation. Thus, these circumstances are expected to
cause a certain increase of the overall GHG emissions from the given landfill site
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
Tourism impact on municipal solid waste: elaborations for the case study “Adriatic Riviera” (Province of Rimini, Italy).
No full textIn sizeable tourist areas, the mutual interaction "tourism - municipal solid waste (MSW) - sustainability" should be attentively investigated, as tourism fluxes could have a strong impact on the performance of implemented MSW management strategies. In this perspective, the present paper analyses the possible tourism influence on MSW generation, composition and separate collection with reference to the Italian case study of "Adriatic Riviera" (expressly located in the Province of Rimini, Central Italy), which is internationally renowned as a major summer seaside destination. In order to evaluate effectively the tourism impact on MSW, the provincial territory of Rimini has been suitably divided into some "territorial macro-areas". The elaborations relate to: the monthly variations of MSW production, the estimate of resulting MSW per-capita production, the estimate of MSW compositions at generation source, the monthly variations of separate collection, and finally the estimate of resulting per-capita separate collection yields
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
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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