Search results for "GAL"
showing 10 items of 9260 documents
Observations on the Painting Technique and Materials Used in the Painting of Lake View, by Akseli Gallen-Kallela
2021
Indulto y Poder Judicial: ¿Un instrumento para la realización de la Justicia?
2017
El indulto no es un vestigio histórico. su reconocimiento en la totalidad de los textos constitucionales de nuestra historia, advierte la existencia de una necesidad que es satisfecha por el indulto, con independencia del momento en el que se haya aplicado. el indulto ex- presa el desajuste entre la norma penal y la justicia, que solo puede tener su remedio con el otorgamiento de la gracia. Pero la admisibilidad del indulto exige el pleno so- metimiento a la ley y al principio de legalidad, desde un ejercicio restrictivo y excepcional, por tratarse de una potestad extraordinaria, pues determina una alteración de los principios constitucionales. y sólo en la medida que sea el Poder Judicial …
A coupled discontinuous Galerkin-Finite Volume framework for solving gas dynamics over embedded geometries
2021
Author(s): Gulizzi, Vincenzo; Almgren, Ann S; Bell, John B | Abstract: We present a computational framework for solving the equations of inviscid gas dynamics using structured grids with embedded geometries. The novelty of the proposed approach is the use of high-order discontinuous Galerkin (dG) schemes and a shock-capturing Finite Volume (FV) scheme coupled via an $hp$ adaptive mesh refinement ($hp$-AMR) strategy that offers high-order accurate resolution of the embedded geometries. The $hp$-AMR strategy is based on a multi-level block-structured domain partition in which each level is represented by block-structured Cartesian grids and the embedded geometry is represented implicitly by a…
Prejudice and acculturation preferences towards Russian immigrants in Finland
2019
Russian minorities are one of the most significant minority groups in Finland. Research on Finnish-Russian relations, suggests that Finnish adolescents have feelings of prejudice towards Russian im...
SPI/INTEGRAL in-flight performance
2003
The SPI instrument has been launched on-board the INTEGRAL observatory on October 17, 2002. SPI is a spectrometer devoted to the sky observation in the 20 keV-8 MeV energy range using 19 germanium detectors. The performance of the cryogenic system is nominal and allows to cool the 19 kg of germanium down to 85 K with a comfortable margin. The energy resolution of the whole camera is 2.5 keV at 1.1 MeV. This resolution degrades with time due to particle irradiation in space. We show that the annealing process allows the recovery of the initial performance. The anticoincidence shield works as expected, with a low threshold at 75 keV, reducing the GeD background by a factor of 20. The digital …
Spatially Resolved Broadband Synchrotron Emission from the Nonthermal Limbs of SN1006
2018
We present ~400ks NuSTAR observations of the northeast (NE) and southwest (SW) non-thermal limbs of the Galactic SNR SN1006. We discovered three sources with X-ray emission detected at >50keV. Two of them are identified as background AGN. We extract the NuSTAR spectra from a few regions along the non-thermal limbs and jointly analyze them with the XMM-Newton spectra and the radio data. The broad-band radio/X-ray spectra can be well described with a synchrotron emission model from a single population of CR electrons with a power law energy distribution and an exponential cutoff. The power law index of the electron particle distribution function (PDF) is ~1.88-1.95 for both the NE and SW l…
(De)legitimating electronic surveillance : a critical discourse analysis of the Finnish news coverage of the Edward Snowden revelations
2017
In 2013, ex-National Security Agency (NSA) contractor Edward Snowden shocked the world by revealing the American NSA’s (and its partners’) extensive surveillance programs. The ensuing media discussion became a focal point for the justification and contestation of surveillance in the digital age. This article contributes to the growing body of literature on the discursive construction of surveillance, concentrating on how the practice is (de)legitimized. Methodologically, the paper draws on Critical Discourse Studies, applying the concept of discourse and utilizing insights from Van Leeuwen’s categories of legitimation and social actor representation. The data come from the media coverage of…
La educación en tiempos virales: el caso de Portugal
2021
Este artículo presenta una contribución para comprender los efectos de la pandemia de COVID-19 en la educación (básica y secundaria). Se centra en el proceso de confinamiento y la consiguiente transición hacia un modelo de enseñanza a distancia vivido en Portugal entre marzo y junio de 2020. Para ello, se empieza por buscar un marco teórico adecuado que permita comprender un fenómeno novedoso, imprevisible y que cuenta con un trasfondo biológico, pero que ha accionado un conjunto complejo de dinámicas políticas, económicas, sociales y culturales. A continuación, se discuten algunos informes internacionales relevantes. En la segunda parte, tras algunas notas metodológicas, se analizan los pr…
8.4GHz VLBI observations of SN2004et in NGC6946
2007
We report on 8.4GHz Very Long Baseline Interferometry (VLBI) observations of the type II-P supernova SN2004et in the spiral galaxy NGC 6946, made on 20 February 2005 (151 days after explosion). The Very Large Array (VLA) flux density was 1.23$\pm$0.07 mJy, corresponding to an isotropic luminosity at 8.4GHz of (4.45$\pm$0.3)$\times10^{25}$ erg s$^{-1}$ Hz$^{-1}$ and a brightness temperature of (1.3$\pm$0.3)$\times10^{8}$ K. We also provide an improved source position, accurate to about 0.5 mas in each coordinate. The VLBI image shows a clear asymmetry. From model fitting of the size of the radio emission, we estimate a minimum expansion velocity of 15,700$\pm$2,000 km s$^{-1}$. This velocity…
Enseñanza de las ciencias : revista de investigación y experiencias didácticas
2006
Resumen basado en el de la publicación Resumen en inglés Se muestra el importante papel de uno de los instrumentos más comunes, el péndulo, en la construcción del paradigma newtoniano. Del análisis de algunas aplicaciones interesantes llevadas a cabo por los mejores científicos de ese tiempo, se concluye que el uso apropiado del péndulo en el aula puede ser una manera fácil de introducir la evolución histórica y epistemológica de conceptos físicos básicos. ESP