1,720,965 research outputs found
Ideologia, pregiudizio e comportamento elettorale: La vulnerabilità della sinistra
No full textIn un precedente articolo comparso pochi numeri fa su questa stessa rivista (Corbetta e Parisi, 1990), si sviluppava un ragio-namento in merito alle condizioni di applicabilità del metodo di stima dei flussi elettorali proposto da Goodman (1953 e 1959) negli anni 50 (noto anche nella letteratura in lingua inglese come ecological regression, cfr. Shively 1969; Cleave, Brown e Payne 1991). Si trattava allora di un ragionamento soprattutto teorico, a riprova del quale veniva portata solo una verifica indiretta (la discrepanza fra risultati quando il metodo viene applicato senza rispettare i suoi presupposti teorici; in particolare quando viene applicato a livello nazionale).
In questo contributo riprendiamo quella stessa problematica, fornendo tuttavia ad essa una verifica pió precisa e puntuale. Per fare ciï ci sembra necessario riprendere, anche per il lettore meno addentro a questo dibattito, sia i termini generali del pro-blema che gli elementi essenziali del ragionamento già sviluppato dai ricercatori dell'Istituto Cattaneo sul precedente numero di "Polis"
Dominio o fraternità? Uno studio sulle credenze a proposito degli animali
No full textQuesto articolo presenta i risultati di una ricerca sulle credenze a proposito degli animali in un campione di 454 adulti che convivono e non convivono con animali domestici. Lo strumento di rilevazione è un questionario composto da 40 items concernenti opinioni sugli animali e sulle persone che se ne occupano. I risultati presentano due sistemi strutturati di credenze: che evidenzia il valore etico della sensibilità umana nei riguardi degli animali e l'afffinità picologica fra esseri umani e animali; che si centra sull'inferiorità degli animali e sul potere degli umani su di essi
Children in residential care: how to evaluate behavioural change.
No full textThis article reports the results of an observational longitudinal study carried out on children who lived in a residential community because of their multiproblem families. The aim of this study was to apply the evaluative methodology proposed by Le Poultier (1990) in order to assess: a) the processess of change in the children over time; b) the relations between educational practices and observed changes. The results confirm: 1) the existence of processes of change in the children; 2) the presence of correlations between the displayed behaviour of the children and adult practices. In addition, what emerges is the exsistence of a dimension (transgession versus co.operation and autonomy) underlying the educational project designed by the adults. The data were analysed using: 1) correlational coefficients to check the relation beween the children's behaviour and the social work; 2) correspondances analysis to permit a simultaneous representation of the devolopmental changes observed in the children with respect to social work
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
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
- …
