1,720,984 research outputs found
Dépenses de santé : contraintes économiques ou choix de société ?
No full textPalier Bruno, Beaudet Alain, Saout Christian, Julien Gilles. Dépenses de santé : contraintes économiques ou choix de société ?. In: Santé, Société et Solidarité, n°2, 2007. Maîtrise des dépenses de santé ou qualité : faut-il choisir ? pp. 135-141
Dépenses de santé : contraintes économiques ou choix de société ?
No full textPalier Bruno, Beaudet Alain, Saout Christian, Julien Gilles. Dépenses de santé : contraintes économiques ou choix de société ?. In: Santé, Société et Solidarité, n°2, 2007. Maîtrise des dépenses de santé ou qualité : faut-il choisir ? pp. 135-141
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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe 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
Immunohistochemical and biochemical evidence for a role of prohormone convertases PC1, PC2 and PC5A in the endoproteolytic processing of the neurotensinneuromedin N precursor in rodent brain
No full textProteolytic maturation of neuropeptide precursors is a general mechanism through which a variety of neuropeptides are synthesized in the mammalian brain. Cumulating evidence suggests that this process is mediated by enzymes of the prohormone convertase (PC) family. However, the precise role and mode of action of these PCs in the brain are still poorly understood. To gain further insight in the putative function of PC5A in the processing of neuropeptide precursors in the brain, we examined its regional, cellular and subcellular distribution in rat brain using immunohistochemistry at the light and confocal microscopic levels. PC5A was extensively distributed throughout the rat brain. It was present in selective neuronal population, but not in glia, consistent with a role of this enzyme in the maturation of peptide precursors destined for regulated secretion. At the subcellular level, PC5A was mainly concentrated in the Golgi apparatus and perikaryal vesicles, suggesting an implication of the enzyme early in the neurosecretory pathway. In a second set of studies, the immunohistochemical distribution of neurotensin (NT) and of either PC1, PC2 or PC5A were compared in rat brain sections using single- or double-labelling immunohistochemistry in order to ascertain whether these convertases might play a role in the processing of the NT precursor (pro-NT/NN) in vivo . The proportion of NT immunoreactive neurons co-expressing either one of these PCs was quantified in NT-rich regions. Neurons co-localizing NT and PC2 were the most numerous, with over 60% of NT-immunoreactive cells being also positive for PC2. NT/PC1 and NT/PC5A neurons were less numerous. Furthermore, the distribution of NT neurons co-localizing PC1 was negatively correlated with that of NT neurons expressing PC5A, suggesting that PC1 and PC5A may play interchangeable roles for the processing of pro-NT/NN in mammalian brain. Using confocal microscopic immunohistochemistry, the bulk of PC1 and PC5A were fou
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