Search results for "Simon"

Phylogenetics of Anthyllis (Leguminosae: Papilionoideae: Loteae): Partial incongruence between nuclear and plastid markers, a long branch problem and…

2010

Abstract Phylogenetic relationships in the genus Anthyllis (Leguminosae: Papilionoideae: Loteae) were investigated using data from the nuclear ribosomal internal transcribed spacer regions (ITS) and three plastid regions (psbA–trnH intergenic spacer, petB–petD region and rps16 intron). Bayesian and maximum parsimony (MP) analysis of a concatenated plastid dataset recovered well-resolved trees that are topologically similar, with many clades supported by unique indels. MP and Bayesian analyses of the ITS sequence data recovered trees that have several well-supported topological differences, both among analyses, and to trees inferred from the plastid data. The most substantial of these concer…

Analysis of the genetic variability in the species of theSaccharomyces sensu strictocomplex

2003

Random amplified polymorphic DNA–polymerase chain reaction (RAPD–PCR) analysis was applied to differentiate the sibling species Saccharomyces bayanus, S. cerevisiae, S. paradoxus and S. pastorianus, which constitute the most common strains of the Saccharomyces sensu stricto complex. Six decamer primers of arbitrary sequences were used to amplify the DNA of 58 strains. Species-specific (diagnostic) bands were obtained for each species. Two phylogenetic trees constructed by the neighbour-joining and maximum parsimony methods clearly showed that the delimitation of these related yeast species is possible by using RAPD analysis. Four groups of strains, corresponding to the species S. bayanus, S…

A Phylogenetic Analysis of Human Syntenies Revealed by Chromosome Painting in Euarchontoglires Orders

2010

To search for cytogenetic signatures that can help to clarify evolutionary affinities among the five orders within the Euarchontoglires clade, we focused on associations of conserved syntenic blocks that have been accumulated in the karyotypes of Primates (Strepsirhini and Haplorhini), five families of Rodentia, Scandentia (Tupaia belangeri), Dermoptera (Galeopterus variegatus) and Lagomorpha (Oryctolagus cuniculus). We examined available chromosome painting data to identify conserved chromosomes and chromosomal segments, and syntenic associations likely to have characterized the ancestral eutherian karyotype. The data set includes 161 characters that have been subjected to a concatenated a…

Gospel of Georgy from Jersika published in 1270

2016

Intersecting Defects and Supergroup Gauge Theory

2021

Journal of physics / A 54(43), 435401 (2021). doi:10.1088/1751-8121/ac2716

Axion gauge symmetries and generalized Chern-Simons terms inN=1 supersymmetric theories

2004

We compute the form of the Lagrangian of N=1 supersymmetric theories with gauged axion symmetries. It turns out that there appear generalized Chern-Simons terms that were not considered in previous superspace formulations of general N=1 theories. Such gaugings appear in supergravities arising from flux compactifications of superstrings, as well as from Scherk-Schwarz generalized dimensional reduction in M-theory. We also present the dual superspace formulation where axion chiral multiplets are dualized into linear multiplets.

Itàlia i la configuració de la llegenda negra borgiana.

2015

Resum: La llegenda negra dels Borja va començar a Itàlia i la van començar els italians en el segle XV. Començada a forjar per cronistes, informadors, cardenals… i contràriament al que es podria pensar, aquesta no va començar després de la mort del segon papa Borja Alexandre VI, sinó durant el seu cardenalat, el seu pontificat i com no, després de la seua mort i continuant els segles posteriors amb acusacions falses com la simonia, el incest, els assassinats…   Paraules clau: Borja, Roderic de Borja, Alexandre VI, llegenda negra, Bichi, Tiara, papa, conclave, simonia, Ascanio Sforza. Abstract: The black legend of Borja began in Italy and Italians began in the fifteenth century. Created by r…

La rationalité simonienne : interprétations et enjeux épistémologiques

1999

Since economics focuses on individual behaviour and implicitly adopt a methodological individualism, an individual rationality hypothesis must be laid down. Beyond the usual substantive rationality hypothesis, others forms of individual rationality can be found in economics theory. They are often related to the Simon's bounded rationality hypothesis. In the economics literature the meanings of the bounded rationality hypothesis are obviously diverse and sometimes based on a partial or superficial readings of Simon's writings. Moreover, each one of these meanings is implicitly closely linked with a particular methodological and epistemological position. Based on careful readings of Simon's w…

Pandemia e Infodemia. Informazione, conoscenza, automazione.

2021

This article aims to explore the connection between the conflicts in information policies occurring during the present pandemic situation and the potential abuse of automation technologies in the processing of information. From a historical point of view, the connection between an effective elaboration of information and the development of automation technologies has been devised by authors such as Norbert Wiener, Claude Shannon and Alan Turing, at the very beginning of the modern theory of information. This seemed to be justified by historical circumstances that are still quoted in order to discipline and “militarise” the spreading of information during the pandemic. By taking reference to…

"Penso a Turandot non finita!". Riflessioni sul capolavoro incompiuto di Giacomo Puccini

2019

Il saggio ricostruisce gli ultimi mesi della vita di Giacomo Puccini, con particolare riferimento alla composizione del terzo atto di "Turandot", agli abbozzi lasciati dall'autore al momento della morte (Bruxelles 1924) e ai successivi interventi compositivi e di orchestrazione realizzati da Franco Alfano.