1,721,127 research outputs found
Le traitement du goitre dans une population du Mali d'effectif limité
No full textBellis Gil, Roux François, Rhaly Abdulaye Ag, Chastin Isabelle, Chaventré André. Le traitement du goitre dans une population du Mali d'effectif limité. In: Population, 46ᵉ année, n°4, 1991. pp. 991-1000
Population and Space in the Mediterranean: The Challenges of the 21st Century (Introduction)
Full text linkThe Mediterranean region features diverse and overlapping socioeconomic and demographic dynamics, with collateral effects that have become increasingly more significant and difficult to solve. The region’s demographic evolution has been uneven. Indeed, while natural population increase in the countries of the northern shore has been weak for several decades (when it did not turn negative, as it did in Italy), the southern and eastern shores continue to benefit from a still considerable natural surplus despite a sharp decline in fertility (Angeli & Salvini, 2018; Bellis, Carella, Léger, Parant, 2021a). Furthermore, the contrasting demographic regimes along the northern (European), eastern (Asian) and southern (African) shores have resulted in a major change in the distribution of the populations whose composition by age group is also very different (Parant & Léger, 2020). In 2020, the countries of the African shore represent the most populated area of the Mediterranean Basin (39% vs. 38% for the countries of the European shore), while in 1950 the northern shore grouped two-thirds of the total population. Moreover, 47% of individuals on the southern shore and 42% of those residing on the eastern shore are now under 25 years old; while the under 25s represent just over a quarter of the population (26%) on the northern shore (Bellis, Carella, Léger, Parant, 2021b). The population of the northern shore is inexorably aging, whereas those of the southern and eastern shores have remained young despite the increase in life expectancy
Populations migrantes et santé : inégalités d’accès à l’offre de soins en Italie
No full textLes difficultés d’accès aux soins dans le pays d’accueil rendent les migrants particulièrement vulnérables sur le plan sanitaire. Cependant, les déterminants des inégalités sociales en matière de santé parmi les immigrés restent peu documentés.
L’étude se propose d’examiner la nature des interactions entre la migration et la santé en Italie et d’apprécier dans quelle mesure le statut d’immigrés peut être source de vulnérabilité dans l’accès aux services sanitaires
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
- …
