1,721,624 research outputs found

    Pedro Sarmiento de Gamboa : Geschichte des Inkareiches

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    de la Rosa G. Pedro Sarmiento de Gamboa : Geschichte des Inkareiches. In: Journal de la Société des Américanistes. Tome 5, 1908. pp. 115-118

    Les Caras de l'Equateur

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    de la Rosa G. Les Caras de l'Equateur. In: Journal de la Société des Américanistes. Tome 5, 1908. pp. 85-93

    A propos de la découverte de la ville antique de Choquéquirao sur la rive droite de l'Apurimac (Pérou)

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    de la Rosa G. A propos de la découverte de la ville antique de Choquéquirao sur la rive droite de l'Apurimac (Pérou). In: Journal de la Société des Américanistes. Tome 5, 1908. pp. 261-264

    Reges vs Nationes. L’inconsistenza politico-istituzionale della Nazione prima delle Rivoluzioni settecentesche

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    Una pessima vulgata della tradizione storiografica ha concepito la categoria di "Monarchie nazionali" per definire i regni di Francia, Spagna ed Inghilterra alle soglie del passaggio tra Medioevo ed Età moderna. Nel saggio si dimostra che il concetto di "Nazione", riferito agli Stati europei succitati ed altri ancora, prima della seconda metà del XVIII secolo, non ha fondamento: sono le due Rivoluzioni del periodo, quella americana e quella francese, a dare significato politico ed istituzionale al concetto di Nazione. Prima di quel periodo esso era apparso ed aveva assunto vari contenuti, ma non fu mai rilevante nelle istituzioni politiche europee, essendo un mero completamento della condizione di "suddito" di un determinato sovrano (il che effettivamente fondava de iure l'appartenenza), e non un elemento essenziale delle comunità politica riconosciute fino alla fine del Settecento

    Molecular and biological characterization of poliovirus 3 strains isolated in adriatic seawater samples

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    ÐIn a previous study [Muscillo, M., Carducci, A., La Rosa, G., Cantiani, L., Marianelli, C. (1997a) Enteric virus detection in adriatic seawater by cell culture, polymerase chain reaction and poly- acrylamide gel electrophoresis. Water Res. 31, 1980±1984] enterovirus strains were isolated from Adria- tic seawater and estuarine water from the Foglia River, by infecting susceptible cells with ultra®ltrated water samples. In the present work we have studied three of those samples, in which routine reverse transcriptase±polymerase chain reaction (RT±PCR) and sequencing analysis had identi®ed the presence of poliovirus type 3 (P3). In order to better estimate the risk to human health of such occurrence in bathing water (having bacteriological standards in line with the EEC directive 76/160), we set up a pro- tocol to distinguish wild from Sabin P3 strains. Three sets of RT±PCR primers were engineered and their predicted products were: 593 nucleotides (nt) in the 5' noncoding (5'NC) region (11±603), 350 nt at the Vp3±Vp1 junction (2438±2787) of the capside protein genes, and 420 nt in the 2C (4209±4628) region, which is regarded as the hotspot of recombinant polioviruses. Eight reference ATCC strains, whose sequences were known, were also tested under the same experimental conditions in order to ver- ify the accuracy of the RT±PCR reactions. The amplicons were directly sequenced by Big-dye2 termin- ator sequencing using a capillary automatic sequencer. The latter two regions found the same viral species Polio 3 in all the sample strains, with no meaningful distinction between P3/Leon/37 and P3/ Leon/12a1b, the vaccine strain. The analyses in the 5'NC region were more useful, where genetic re- lationships and the predicted secondary structure suggested that the viruses were of vaccinal sources. Molecular data were con®rmed by in vitro phenotypic marker tests rct/40, where all the examined samples displayed a temperature sensitive phenotype rct/40(ÿ). Our results suggest that the 472U4C transition alone, is not a predictive marker of reversion to neurovirulence. Finally, we conclude that the 220U constantly found in the consensus sequences of the samples can serve as a good predictor of rct/ 40(ÿ) phenotype

    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

    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

    Two-step nilpotent Leibniz algebras

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    In this paper we give a complete classification of two-step nilpotent Leibniz algebras in terms of Kronecker modules associated with pairs of bilinear forms. In particular, we describe the complex and the real case of the indecomposable Heisenberg Leibniz algebras as a generalization of the classical (2n+1)(2n+1)-dimensional Heisenberg Lie algebra h2n+1\mathfrak{h}_{2n+1}. Then we use the Leibniz algebras - Lie local racks correspondence proposed by S. Covez to show that nilpotent real Leibniz algebras have always a global integration. As an application, we integrate the indecomposable nilpotent real Leibniz algebras with one-dimensional commutator ideal. We also show that every Lie quandle integrating a Leibniz algebra is induced by the conjugation of a Lie group and the Leibniz algebra is the Lie algebra of that Lie group.Comment: Final version, accepted for publicatio
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