1,722,079 research outputs found
Alleanza internazionale "Giuseppe Garibaldi" per la libertà d'Italia (Mexico City, 1941-1945): popular front or soviet puppet organization?
No full textDuring the Second World War, the most prominent Italian antifascist organizations in the Americas refused to admit communists. This is not surprising, given the need to secure the cooperation of the US government. The Alleanza Garibaldi, however, sought to build a broader alliance. By admitting all antifascists, no matter their political affiliations, the Garibaldi attempted to promote unity as a sine qua non for defeating nazi-fascism. Based in Mexico City, then a hub for left-wing political exile, the Alleanza leveraged the resources of a variety of transnational partners to disseminate propaganda, assist refugees, and lobby for Italian interests. This article intends to reconstruct the history of this little-known organization and to examine the ways in which these complex solidarity networks both helped and hindered the group's unity agenda
Africans and Asians abroad: Genetic diversity in Europe.
No full textBesides its obvious intrinsic value, knowledge of population history, and of the demographic and evolutionary changes that accompany it, has proven fundamental to address applied research in human genetics. In this review we place current
European genetic diversity in the context of the global human genome diversity and review the evidence supporting a recent African origin of the Europeans. We then discuss the results and the interpretation of genetic studies attempting to quantify the relative importance of various gene flow processes, both within Europe and from Asia into Europe, focusing especially on the initial, Paleolithic colonization of the continent, and on later, Paleolithic postglacial and Neolithic dispersals. Finally, we discuss how knowledge of the patterns of genetic diversity in Europe, and of their inferred generating
processes, can be extremely useful in planning health care and in biomedical research
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
On the role of subgrid-scale coherent modes in large-eddy simulation
No full textThe role of coherent and incoherent subgrid-scale modes in large-eddy simulation modelling is examined. The coherent/incoherent decomposition of the subgrid-scale stresses based on the wavelet de-noising procedure is introduced. A priori dynamical tests based on the perfect modelling approach are performed for decaying isotropic turbulence. The theoretical effects of coherent and incoherent subgrid-scale forces are dynamically evaluated during the simulation. The relation between deterministic/ stochastic subgrid-scale models and coherent/incoherent subgrid-scale stresses is dis- cussed. The main result is that in large-eddy simulations low-order statistics can be almost exactly reproduced when only the effect of the coherent subgrid-scale modes is accounted for, while the incoherent subgrid-scale modes have a negligible effect upon the large-scale dynamics and the energy transfer
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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