1,721,173 research outputs found
A new species of Leptoconops Skuse from Argentina, description of the male of L. casali Cavalieri & Chiossone and a key to the Neotropical species (Diptera: Ceratopogonidae)
No full textSpinelli, Gustavo R., Ronderos, Maria M., Díaz, Florentina (2022): A new species of Leptoconops Skuse from Argentina, description of the male of L. casali Cavalieri & Chiossone and a key to the Neotropical species (Diptera: Ceratopogonidae). Zootaxa 5091 (3): 487-494, DOI: 10.11646/zootaxa.5091.3.
Genetic aspects in sarcoidosis.
No full textSarcoidosis is an immune-mediated, multiorgan, granulomatous disorder thought to be triggered by an intricate combination of environmental and genetic factors. Two robust lines of evidence support the hypothesis of a genetic component in the pathogenesis of sarcoidosis: racial variation in its epidemiology and familial clustering of cases. The relationship between epidemiology and environmental factors affecting variations in sarcoidosis incidence/prevalence and presentation are reviewed, as well as strategies to be pursued in the search for susceptibility genes for the disorder. Pathogenic processes leading to sarcoid granuloma formation and maintenance have prompted investigators interested in the genetics of sarcoidosis to focus mainly on major histocompatibility complex genes, and indeed a remarkable amount of data has been accumulated during the last two decades. Whilst in contrast with some autoimmune disorders a clear association between human leukocyte antigen (HLA) and sarcoidosis is still a controversial issue, there is, however, a general agreement that some HLA genes are related to phenotypic variations of the disease. Some genetic investigators have focused on T-cell receptor genes, immunoglobulin genes, angiotensin converting enzyme gene, chemokine genes and others. From a review of studies performed in different racial and ethnic groups, a reasonable suggestion arises that genetic factors are the major determinant in the racial variations in the epidemiology of the disorder. This assumption is, however, so far limited by lack of studies considering both genetic and environmental factors simultaneously
Tema 3: "Le infezioni respiratorie fra ospedale e territorio", sabato 29 maggio 2010 = Topic 3: "Respiratory infections - Between hospital and local community", Saturday 29 May 2010
No full textGli arazzi della battaglia di Pavia
No full textIl libro analizza i 7 arazzi, conservati presso il Museo di Capodimonte, che descrivono la battaglia svoltasi a Pavia nel 1524, tra le truppo francesi di Francesco I e l'esercito imperiale spagnolo dell'imperatore Carlo V.
I testi sono relativi alla descrizione della battaglia, all'analisi e lettura degli arazzi; all'architettura presente negli arazzi stessi, alla lettura del territorio, ai riferimenti storici e confronti con l'iconografia storica; all'analisi della committenza, dei disegni preparatori, della tessitura, ecc. - Vittorio Prina redige inoltre il saggio: "L'architettura negli arazzi della battaglia di Pavia"
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
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