27,108 research outputs found
Variations on the Author
No full text“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
Evidence for the decay B0→J/ψω and measurement of the relative branching fractions of meson decays to J/ψη and J/ψη′
No full textFirst evidence of the B 0 → J / ψ ω decay is found and the B s 0 → J / ψ η and B s 0 → J / ψ η ′ decays are studied using a dataset corresponding to an integrated luminosity of 1.0 fb -1 collected by the LHCb experiment in proton-proton collisions at a centre-of-mass energy of sqrt(s) = 7 TeV. The branching fractions of these decays are measured relative to that of the B 0 → J / ψ ρ 0 decay:frac(B (B 0 → J / ψ ω), B (B 0 → J / ψ ρ 0)) = 0.89 ± 0.19 (stat) - 0.13 + 0.07 (syst),frac(B (B s 0 → J / ψ η), B (B 0 → J / ψ ρ 0)) = 14.0 ± 1.2 (stat) - 1.5 + 1.1 (syst) - 1.0 + 1.1 (frac(f d, f s)),frac(B (B s 0 → J / ψ η ′), B (B 0 → J / ψ ρ 0)) = 12.7 ± 1.1 (stat) - 1.3 + 0.5 (syst) - 0.9 + 1.0 (frac(f d, f s)), where the last uncertainty is due to the knowledge of f d / f s, the ratio of b-quark hadronization factors that accounts for the different production rate of B 0 and B s 0 mesons. The ratio of the branching fractions of B s 0 → J / ψ η ′ and B s 0 → J / ψ η decays is measured to befrac(B (B s 0 → J / ψ η ′), B (B s 0 → J / ψ η)) = 0.90 ± 0.09 (stat) - 0.02 + 0.06 (syst)
b-Generalized Skew Derivations on Multilinear Polynomials in Prime Rings
No full textLet R be a prime ring of characteristic different from 2, Qr be its right Martindale quotient ring and C be its extended centroid. In this paper we define b-generalized skew derivations of prime rings. Then we describe all possible forms of two b-generalized skew derivations F and G satisfying the condition F(x)x − xG(x) = 0, for all x ∈ S, where S is the set of the evaluations of a multilinear polynomial f(x1, ..., xn) over C with n non-commuting variables. Several potential research topics related to our current work are also presented. © 2021, The Author(s), under exclusive license to Springer Nature Switzerland AG
CURRENT PROBLEMS OF THE SCIENCE OF LAW: A CIVILIST’S VIEW. REVIEW OF THE MONOGRAPH OF V. F. POPONDOPULO “HUMAN ACTIVITY: LEGAL FORMS OF IMPLEMENTATION AND PUBLIC ORGANIZATION” (M.: PROSPECT, 2021. 736 P.)
No full textThe article provides a detailed analysis of the monograph V. F. Popondopulo “Human activity: legal forms of implementation and a public organization”. The review author notes the relevance of the monograph, its integrated and comprehensive nature, allowing to deeply explore the phenomenon of human activity as the basis of law enforcement. According to the author, the concept developed by V. F. Popondopulo has a high scientific and practical value, since it lays the foundation of the theory of law that promotes the crisis of the theoretical and methodological foundations of sectoral legal sciences, primarily the science of civil law. Even though in the monograph V. F. Popondopulo present certain discussion provisions, they, according to the author, not only do not reduce the values of the study, but also stimulate an in-depth study of the problems considered in the study
Six Overtures Composed by C. F. Abel. Adapted for the Harpsichord or Piano Forte : being Opera First / By the Author
No full textSIX OVERTURES COMPOSED BY C. F. ABEL. ADAPTED FOR THE HARPSICHORD OR PIANO FORTE : BEING OPERA FIRST / BY THE AUTHOR
Six Overtures Composed by C. F. Abel. Adapted for the Harpsichord or Piano Forte : being Opera First / By the Author (1)
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Disciplining Orchestration and Conversation in Service-Oriented Computing
No full textWe give a formal account of a calculus for modeling service-based systems, suitable to describe both service composition (orchestration) and the protocol that services run when invoked (conversation). The calculus includes primitives for defining and for invoking services, for isolating conversations between requesters and providers of services, and primitives for orchestrating services, that is, to make use of existent services as building blocks to accomplish complex tasks.
The calculus is equipped with a reduction and a labeled transition semantics; an equivalence result relates the two. To hint how the structuring mechanisms of the language can be exploited for static analysis we present a simple type system guaranteeing the compatibility between client and server protocols, an application of bisimilarity to prove equivalence among services, and we discuss deadlock-avoidance
Multivariate Polarimetric Bistatic Clutter Statistical Analysis
No full textThis paper deals with the analysis of simultaneously collected co- and cross-polarized bistatic sea-clutter returns with special emphasis on their representation as a Spherically Invari-ant Random Process (SIRP). The study is conducted by using appropriate testing procedures involving the complex envelope of the measured data that provide both first- and higher-order compatibility conditions. The results highlight that the SIRP model is a good candidate for the representation of bistatic coherent clutter, and usually the coherence time of the SIRP texture is longer than that in the monostatic case.Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Microwave Sensing, Signals & System
Manuais pedagógicos e as orientações para o ensino de matemática no curso primário em tempos de Escola Nova
No full textO original desta publicação enconta-se depositado na Biblioteca da Universidade Federal de São Paulo, Escola de Filosofia, Letras e Ciências Humanas, 113f + anexos (CD-ROM).Esta pesquisa tem por objetivo analisar manuais pedagógicos com a finalidade de investigar as orientações dadas para o ensino de matemática no período de movimento de Escola Nova no Brasil a professores do curso primário. Em especial, foram escolhidos os manuais: A nova metodologia da aritmética, 1936 de autoria de Edward Lee Thorndike; Metodología de la aritmética y la geometría, de 1932 de autoria de Margarita Comas; Como se ensina à aritmética: didáctica, 1933 e Como se ensina a raciocinar em aritmética, 1934, ambos de autoria de Faria de Vasconcelos; Didática da Escola Nova, de 1935 de autoria de Miguel Aguayo; A aritmética na Escola Nova, 1933 de autoria de Everardo Backheuser. A análise dos manuais norteou-se pela seguinte interrogação: como os manuais pedagógicos, orientadores de práticas pedagógicas para o ensino de matemática no curso primário, elaboraram um discurso escolanovista que circulou no Brasil? A pesquisa desenvolve-se sob a ótica histórico-cultural. O resultado do estudo indica que por intermédio dos manuais pedagógicos elencados anteriormente foram trazidas ao Brasil as discussões escolanovistas defendidas por Dewey (1859-1952), Thorndike (1874-1949), Claparède (1873-1940), Ferrière (1879-1969), Montessori (1870-1952) e Decroly (1871-1932), indicando que os discursos escolanovistas referentes ao ensino de matemática assemelham-se, fato que pôde ser constatado a partir da construção das seguintes categorias de análise, cálculo em multiplicação, resolução de problemas, problemas sem número, metodologia de projetos e testes matemáticos. Ao que parece, formou-se uma vulgata escolanovista, relativamente às orientações para o ensino de matemática, no período analisado
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