1,720,965 research outputs found

    The dynamic of residential segregation in Italian metropolises: Milan, Rome and Naples, 1991-2011

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    We investigate how socio-residential segregation has changed between 1991 and 2011 within the three biggest Italian metropolitan areas: Milan, Rome and Naples, using the OECD methodology to define the perimeters of the latter. We data of the three last waves of the Italian population census (1991-2001-2011) at the finest scale (census sections).To build a reliable (and internationally comparable) socio-professional typology, we have worked directly on the census microdata at the individual level to create a new variable of socio-professional positions. This variable has been created on the basis of individual answers to three questions, one related to the ISCO, one related to the type of job contract, and one related to the sector of activity. The combination of the three produces a more informative socio-professional scale, well adapted to compare the social segregation dynamics of Italian metropolises with those of other European metropolises (particularly London and Paris). To analyze residential segregation, we then build a typology of spaces based on the weight of the various socio-professional categories within the active resident population of each space. This is done following the methodology created by Préteceille to study residential segregation in France and Brazil, and further developed by Cousin&Préteceille to compare Milan and Paris at the beginning of 90s. This method of neighborhoods classification is based on a combination of ascending hierarchical classification techniques and correspondence factor analysis. The paper presents data, methodology, and a description of the main dynamics of urban change in the three metropolises between 1991 and 2011. It asks one main research question related to the residential behavior of middle classes, and then tests and nuances two hypothesis related to: (1) the reduction of social mix in the core neighborhoods of each metropolitan area, and to (2) upper-middle classes secession

    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

    Supplementary material

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    The current file contains the Supplementary Material from the preprint "School Choice in Italy between Family Preferences and School Characteristics
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