1,721,198 research outputs found

    «Un solitario delle lettere»? Formazione, prime esperienze scrittorie e rapporto con Antonio Fogazzaro di Tommaso Gallarati Scotti

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    Analisi del rapporto tra Tommaso Gallarati Scotti e Antonio Fogazzaro sotto il profilo letterario e intellettual

    Tommaso Gallarati Scotti e il Banco Ambrosiano

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    Tommaso Gallarati Scotti alla presidenza del Banco Ambrisiano.The activities of Tommaso Gallarati Scotti as chairman of Banco Ambrosiano

    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

    Mutations in the bovine prolactin receptor (PRLR) gene: allele and haplotype frequencies in the Reggiana cattle breed

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    Prolactin receptor (PRLR) is a member of the cytokine receptor superfamily. PRLR exerts its functions binding three types of ligands (prolactin, placental lactogen and growth hormone) involved in a large number of biological processes, like development, fetal growth, pregnancy, lactation and response to stressors. In mice and pigs, mutations in the PRLR gene have been indicated to affect mammary gland development or were associated with litter size and reproduction traits. The bovine PRLR gene has been assigned to chromosome 20, a few cM from the growth hormone receptor (GHR) gene, where several QTL for milk production traits have been mapped in a few dairy breeds. Recently, a missense mutation identified in exon 3 of this gene (S18N, named according to the amino acid exchange) has been associated to milk, fat and protein yield in Finnish Ayrshire. Another missense mutation (L186P) in exon 7 of this locus has been identified by us and others. Here we analysed these two polymorphisms in the Reggiana cattle breed as a first step of association studies between the PRLR locus and production traits in this breed. DNA was extracted from semen that was possible to collect from 124 Reggiana sires. Two PCR-RFLP protocols were set up to analyse the mutations mentioned above. Sequencing of amplified fragments was carried out to confirm the results of the PCR-RFLP genotyping methods. At the S18N missense mutation, allele N, that was suggested to positively affect milk, protein and fat yield, was the less frequent (0.39). At the L186P mutation, allele L was observed with the higher frequency (0.75). For 102 animals it was possible to infer the haplotype structure using only the genotype information. All four possible haplotypes were deduced. The most and less frequent ones were S18-L186 (0.44) and N18-P186 (0.06), respectively. The other two haplotypes (N18-L186 and S18-P186) showed a frequency of 0.32 and 0.18, respectively

    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
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