Results 31 to 40 of about 61,701 (212)
On the relation between Seyfert 2 accretion rate and environment at z < 0.1 [PDF]
, 2014 We analyse different properties of the small-scale environment of Seyfert 2 for two samples selected according to the accretion rate parameter, R, from the Sloan Digital Sky Survey, Data Release 7 survey.
Coldwell Lloveras, Georgina Vanesa +4 more
core +1 more source
Sequência Didática para o ensino de Astronomia
Caderno Brasileiro de Ensino de Física, 2021 Na expectativa da inserção de Astronomia no Ensino de Ciências, desenvolvemos a investigação cujos resultados apresentamos neste artigo. Por meio de um questionário, diversos professores de uma escola da rede pública do estado de Minas Gerais foram ...
V. P. Silva +2 more
semanticscholar +1 more source
Formalization of Universal Algebra in Agda [PDF]
, 2018 In this work we present a novel formalization of universal algebra in Agda. We show that heterogeneous signatures can be elegantly modelled in type-theory using sets indexed by arities to represent operations. We prove elementary results of heterogeneous
Gadea, Alejandro Emilio +2 more
core +1 more source
Satisfiability for relation-changing logics [PDF]
, 2018 Relation-changing modal logics (RC for short) are extensions of the basic modal logic with dynamic operators that modify the accessibility relation of a model during the evaluation of a formula.
Areces, Carlos Eduardo +3 more
core +1 more source
Diseño de actividades para una didáctica de la Astronomía vivencialmente significativa
, 2021 La Didáctica de la Astronomía es una especialidad aún joven, a pesar de unos cuarenta años de desarrollo en el mundo y poco menos en Latinoamérica. Aunque consolidada, tiene todavía mucha potencialidad por desarrollar para profundizar y mejorar las ...
N. Camino
semanticscholar +1 more source
Relation-changing modal operators [PDF]
, 2015 We study dynamic modal operators that can change the accessibility relation of a model during the evaluation of a formula. In particular, we extend the basic modal language with modalities that are able to delete, add or swap an edge between pairs of ...
Areces, Carlos Eduardo +2 more
core +2 more sources
Una progresión de aprendizaje sobre ideas básicas entre Física y Astronomía
, 2021 Although people seem to be naturally motivated towards learning astronomy, many, even at high educational levels, show difficulties in explaining everyday astronomical phenomena.
E. Giordano
semanticscholar +1 more source
Revista Valore, 2021 O presente artigo é o recorte de uma pesquisa de mestrado que teve como objetivo elencar os conteúdos de astronomia presentes nos livros didáticos de ciências utilizados pelo sistema municipal de ensino de Bauru nos anos iniciais do ensino fundamental ...
Rodolfo Fortunato de Oliveira +1 more
semanticscholar +1 more source
Optimizing anisotropic margins in single-isocenter multiple brain metastases radiosurgery using regressor strategies: A multi-institutional validation study. [PDF]
J Appl Clin Med PhysAbstract Purpose To explore a comprehensive method for assigning anisotropic margins in single‐isocenter multiple‐metastasis radiosurgery (SRS), utilizing regressor strategies with geometric, dosimetric, and mechanical information. Such margins may reduce the volume of the irradiated brain without compromising the dose to lesions, by considering ...
Rojas-López JA +7 more
europepmc +2 more sources
New perspectives on the supernova remnant Puppis A based on a radio polarization study [PDF]
, 2018 We present a polarization study towards the supernova remnant (SNR) Puppis A based on original observations performed with the Australia Telescope Compact Array.
Cichowolski, Silvina +2 more
core +2 more sources