533 hasil untuk "Alexandre F"
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Bulgakov and Laboulaye (To the Issue of Sources of “Heart of a Dog”)
The article deals with the European literary tradition presenting the dog as a protagonist. The author claims that the magical story of the French politician and writer Édouard Laboulaye (1811 –1883) “The Poodle-Prince” (1867) is one of the literary sources for Mikhail Bulgakov’s novella “Heart of…
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Viscosity Solutions and American Option Pricing in a Stochastic Volatility Model of the Ornstein-Uhlenbeck Type
We study the valuation of American-type derivatives in the stochastic volatility model of Barndorff-Nielsen and Shephard (2001). We characterize the value of such derivatives as the unique viscosity solution of an integral-partial differential equation when the payoff function satisfies a Lipschitz…
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Lyamshin and Leverkühn
This article focuses on the literary, political, philosophical, and musical dialogue between Dostoevsky and his ardent admirer Thomas Mann, primarily between the novels Demons and Doctor Faustus. After the French Revolution and the Terror, Marquis de Sade and Goethe’s Mephistopheles reformulated…
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A breve gestão de Francisco Dornelles no Ministério da Fazenda: O ocaso da hegemonia da FGV-RJ e dos Delfim Boys na formulação da política econômica brasileira.
RESUMO O texto analisa a gestão de Francisco Dornelles no Ministério da Fazenda em 1985. Além de preencher a lacuna existente na historiografia, reconstrói-se o pensamento e a atuação econômica de Dornelles e Tancredo Neves. Ambos eram conservadores, esposando um diagnóstico “monetarista” sobre a…
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Quem, afinal, apoiou o Plano Collor?
RESUMO No livro Economia Brasileira Contemporânea, Lavínia Barros de Castro afirma que o Plano Collor “recebeu críticas de todas as partes”, que o “bloqueio dos recursos foi considerado uma inadmissível intervenção estatal”, e que o congelamento de preços, o ajuste fiscal e o caráter recessivo do…
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Flood-Rings Production Modulated by River Regulation in Eastern Boreal Canada
In northeastern boreal Canada, the long-term perspective on spring flooding is hampered by the absence of long gage records. Changes in the tree-ring anatomy of periodically flooded trees have allowed the reconstruction of historical floods in unregulated hydrological systems. In regulated rivers…
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Phosphorylation shapes antigen presentation and immune recognition: mechanistic insights and translational perspectives
Phosphorylation is a reversible post-translational modification that dynamically regulates immune responses by reshaping the antigen profiles. Phosphoproteomics and immunopeptidomics studies reveal that phosphorylated peptides (phosphopeptides) are naturally processed and presented by MHC class I…
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Perfil dos recursos didáticos para o ensino de mecânica publicados em periódicos brasileiros dedicados ao ensino de física
Neste trabalho, identificou-se e analisou-se propostas de recursos para o ensino de tópicos da mecânica publicados nos últimos 12 anos em três periódicos brasileiros dedicados ao Ensino de Física, com grande circulação entre professores e pesquisadores e bem avaliados pelo Qualis/CAPES, que é um…
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Physical implications of [Formula: see text] (2, 1) symmetry in exact solutions for a self-repressing gene
We chemically characterize the symmetries underlying the exact solutions of a stochastic negatively self-regulating gene. The breaking of symmetry at a low molecular number causes three effects. Two branches of the solution exist, having high and low switching rates, such that the low switching…
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Effective acetylene length dependence of the elastic properties of different kinds of graphynes
ABSTRACT: Graphyne is a planar network of connected carbon chains, each formed by n acetylene linkages. Uncountable ways to make these connections lead to uncountable structural graphyne families (GFs). As the synthesis of graphynes with n > 1 has been reported in literature, it is of interest to…
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Babel in Paris: New Materials. Introduction, publication and notes by E.I. Pogorelskaia and A.F. Stroev
The archival documents from the collections of the National Library of France (BnF), the Russian State Archive of Literature and Art (RGALI), and the department of manuscript collections of the V.I. Dahl State Museum of the History of Russian Literature (ORF GLM) make significant additions and…
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Aridity drives plant biogeographical sub regions in the Caatinga, the largest tropical dry forest and woodland block in South America.
Our aims were to quantify and map the plant sub regions of the the Caatinga, that covers 844,453 km2 and is the largest block of seasonally dry forest in South America. We performed spatial analyses of the largest dataset of woody plant distributions in this region assembled to date (of 2,666 shrub…
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Otoliths in situ in Pinichthys shirvanensis Bannikov, 2021 (Stromateidae) from the Tarkhanian (Langhian, Middle Miocene) of the northern Caucasus (Russia)
Abstract Otolith finds in situ are important for connecting the independent data sets of articulated fish skeletons and isolated otoliths in the fossil record. Here we describe an otolith in situ retrieved from a skeleton of the stromateid Pinichthys shirvanensis Bannikov, 2021, which was collected…
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Concepções de aprendizagem nas Pesquisas em Ensino de Física que lidam com pequenos grupos
Diversas estratégias são criadas para analisar o fenômeno aprendizagem. Tais estratégias podem sinalizar como os pesquisadores compreendem esse fenômeno. Neste trabalho, investigamos as concepções de aprendizagem que aparecem em trabalhos que lidam com pequenos grupos em aulas de Física. Analisamos…
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Spatial structure of the Caatinga woody flora: abundance patterns have environmental, Pleistocene, and indigenous drivers
Abstract Despite growing knowledge on the distribution and functioning of dryland vegetation types, their internal biodiversity structure (i.e., subregions) is much less studied. In the delineation of subregions, the use of species occurrence or abundance data may reveal different aspects of…
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Disturbance history mediates climate change effects on subtropical forest biomass and dynamics
Abstract The responses of forest communities to interacting anthropogenic disturbances like climate change and logging are poorly known. Subtropical forests have been heavily modified by humans and their response to climate change is poorly understood. We investigated the 9‐year change observed in…
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ENGAJAMENTO DE ESTUDANTES EM INVESTIGAÇÃO ESCOLAR SOBRE CIRCUITOS ELÉTRICOS SIMPLES
RESUMO: Buscam-se objetivos variados com as atividades desenvolvidas no laboratório escolar de Física. Entre as várias propostas para esse ambiente de aprendizagem estão aquelas que o concebem a partir de atividades investigativas, com diferentes níveis de abertura. Neste trabalho, apresentamos os…
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Tarefas para Aulas Invertidas: relato de experiência docente com deveres de casa on-line em curso de Física
Tarefas para casa – ou deveres escolares – sempre estiveram presentes em Cursos de Física da Educação Básica e da Educação superior. As metodologias ativas atribuíram novas funções às lições de casa. Contudo, essas lições não têm sido objeto de pesquisa empírica, nem de relato docente. Neste relato…
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Forest biomass variation in Southernmost Brazil: the impact of Araucaria trees
A variety of environmental and biotic factors determine vegetation growth and affect plant biomass accumulation. From temperature to species composition, aboveground biomass storage in forest ecosystems is influenced by a number of variables and usually presents a high spatial variability. With…