a posteriori
Recently Published Documents


TOTAL DOCUMENTS

5329
(FIVE YEARS 1191)

H-INDEX

89
(FIVE YEARS 9)

2022 ◽  
Vol 42 (1) ◽  
pp. 5-24
Author(s):  
Cosimo Magazzino ◽  
Marco Mele

ABSTRACT This paper aims to analyze the innovations introduced in the functions of the International Monetary Fund in the context of the 2008 economic and financial crisis. This promoted an action that aimed to strengthen the surveillance function through the adoption of the Integrated Surveillance. Thus, alongside the traditional conditionality based on an a posteriori implementation of adequate economic policies, a criterion of ex ante conditionality in the precautionary branches was also introduced or based on the economic characteristics of the country to be financed. Concerning traditional conditionality, it will be asked whether the IMF has adopted a less extensive approach than its role.


2022 ◽  
Vol 5 (1) ◽  
Author(s):  
Halima Giovanna Ahmad ◽  
Martina Minutillo ◽  
Roberto Capecelatro ◽  
Avradeep Pal ◽  
Roberta Caruso ◽  
...  

AbstractThe increased capabilities of coupling more and more materials through functional interfaces are paving the way to a series of exciting experiments and extremely advanced devices. Here we focus on the capability of magnetically inhomogeneous superconductor/ferromagnet (S/F) interfaces to generate spin-polarized triplet pairs. We build on previous achievements on spin-filter ferromagnetic Josephson junctions (JJs) and find direct correspondence between neat experimental benchmarks in the temperature behavior of the critical current and theoretical modelling based on microscopic calculations, which allow to determine a posteriori spin-singlet and triplet correlation functions. This kind of combined analysis provides an accurate proof of the coexistence and tunability of singlet and triplet transport. This turns to be a powerful way to model disorder and spin-mixing effects in a JJ to enlarge the space of parameters, which regulate the phenomenology of the Josephson effect and could be applied to a variety of hybrid JJs.


Author(s):  
Kazuaki Tanaka ◽  
Taisei Asai

AbstractThe purpose of this paper is to develop a unified a posteriori method for verifying the positivity of solutions of elliptic boundary value problems by assuming neither $$H^2$$ H 2 -regularity nor $$ L^{\infty } $$ L ∞ -error estimation, but only $$ H^1_0 $$ H 0 1 -error estimation. In (J Comput Appl Math 370:112647, 2020), we proposed two approaches to verify the positivity of solutions of several semilinear elliptic boundary value problems. However, some cases require $$ L^{\infty } $$ L ∞ -error estimation and, therefore, narrow applicability. In this paper, we extend one of the approaches and combine it with a priori error bounds for Laplacian eigenvalues to obtain a unified method that has wide application. We describe how to evaluate some constants required to verify the positivity of desired solutions. We apply our method to several problems, including those to which the previous method is not applicable.


Daímon ◽  
2022 ◽  
pp. 51-65
Author(s):  
Manuel Alejandro Serra

After the criticism that Martin Heide-gger made of Western metaphysics some authors like Gilson or Fabro, among others, wanted to enter into confrontation giving them the oppor-tunity to study in depth most important theses of authors like Thomas Aquinas and his esse philo-sophy. Gilson’s theses had an important impact on the world of Thomism, but Lawrence Dewan, also a Thomist, wanted to defend against Gilson the traditional interpretation of Cayetano and Capreolo, which until now had been regarded as the most celebrated commentators of Thomas. This article investigates a specific point of this confrontation: the causation of esse. El legado de Martin Heidegger con su crítica a la metafísica occidental ha suscitado numerosos estudios en torno a la perenne cuestión acerca del ser, la metafísica y el fundamento mismo de la filosofía. Étienne Gilson, entre otros autores, fue un medievalista que tomó el pulso al pensador alemán para demostrar que Tomás de Aquino no esencializó el ser, como aquél pretendía. Sin embargo, junto con el Francés, en torno a la filosofía del ser tomista surgieron otros estudiosos que quisieron confrontar el tomismo gilsoniano con lo que entendían era un modo más adecuado de entender el verdadero tomismo. Uno de los puntos más interesantes sobre esta confrontación es, sin duda, el papel del esse tomista en la comprensión de la causalidad, entrando aquí en juego, a posteriori, interesantes cuestión en torno a la relación entre el pensamiento tomista y el aristotélico.


2022 ◽  
Vol 8 ◽  
Author(s):  
Soheyl Massoudi ◽  
Cyril Picard ◽  
Jürg Schiffmann

Abstract Although robustness is an important consideration to guarantee the performance of designs under deviation, systems are often engineered by evaluating their performance exclusively at nominal conditions. Robustness is sometimes evaluated a posteriori through a sensitivity analysis, which does not guarantee optimality in terms of robustness. This article introduces an automated design framework based on multiobjective optimisation to evaluate robustness as an additional competing objective. Robustness is computed as a sampled hypervolume of imposed geometrical and operational deviations from the nominal point. In order to address the high number of additional evaluations needed to compute robustness, artificial neutral networks are used to generate fast and accurate surrogates of high-fidelity models. The identification of their hyperparameters is formulated as an optimisation problem. In the frame of a case study, the developed methodology was applied to the design of a small-scale turbocompressor. Robustness was included as an objective to be maximised alongside nominal efficiency and mass-flow range between surge and choke. An experimentally validated 1D radial turbocompressor meanline model was used to generate the training data. The optimisation results suggest a clear competition between efficiency, range and robustness, while the use of neural networks led to a speed-up by four orders of magnitude compared to the 1D code.


Kepes ◽  
2022 ◽  
Vol 19 (25) ◽  
pp. 427-462
Author(s):  
Mª Carmen Hidalgo Rodríguez
Keyword(s):  
Lewis Y ◽  

El álbum ilustrado infantil es una de las publicaciones para niños con mayor grado de experimentación literaria-plástica. La clave de estos libros radica en la relación entre la imagen y el texto, donde ambos medios colaboran entre sí para contar una historia común. Esta investigación se centra en los álbumes donde la relación multimodal es fundamentalmente de contrapunto, es decir, la imagen y el texto cuentan historias distintas, que incluso pueden llegar a contradecirse. El objetivo de esta aportación es doble: en primer lugar, se profundiza en los recursos de interacción verbal-icónica que dan lugar al contrapunto en el álbum ilustrado; y, a posteriori, se diseña una actividad didáctica enfocada en la descodificación textual y visual de los álbumes analizados, con el objeto de implementarla como parte de la programación docente del Máster de Dibujo. El método empleado se basa en un estudio cualitativo de cinco álbumes contemporáneos publicados en español, tomando como punto de partida las categorías de contrapunto de Nikolajeva y Scott, y las clasificaciones de recursos metaficcionales descritos por Lewis y Zabala. Los resultados del análisis sirven de base para el diseño de la actividad, donde los estudiantes trabajarán los conceptos explicados previamente en el aula. El análisis revela un claro predominio de los recursos denominados “estilo”, “punto de vista” y “género” para crear el contrapunto fundamental en el álbum. La actividad didáctica muestra las dificultades de identificación del contrapunto en los álbumes no contradictorios. De esta manera, para mejorar la eficacia de la actividad, se proponen algunos ajustes, como son la ampliación del número de álbumes para reducir los grupos de trabajo, y la incorporación de álbumes de complemento para facilitar la comprensión de los conceptos por comparación.


2021 ◽  
Vol 2 (6) ◽  
pp. 1-22
Author(s):  
Cristina D’Ávila ◽  
Maria Aparecida Dávila Cassimiro
Keyword(s):  

Este artigo apresenta os dados produzidos na primeira etapa de uma pesquisa-ação realizada numa escola do campo, da rede municipal de Ilhéus, sobre o brincar livre no segmento da Educação Infantil. Como talfaz parte integrante de um projeto maior desenvolvido no Grupo de Pesquisa em Educação, Didática e Ludicidade (GEPEL), vinculado ao Programa de Pós-graduação em Educação (PPGE) da Universidade Federal da Bahia (UFBA), intitulado Baú Brincante. A referida pesquisa configura-se como um projeto interinstitucional, em desenvolvimento, realizado pelo GEPEL. Um estudo surgido a partir da cooperação entre o PPGE/UFBA  e Grupo de pesquisa Experice da Universidade Paris XIII, Sorbonne, baseado no projeto Boite a Jouer, coordenado pelo Professor Gilles Brougère. Para desenvolver a pesquisa em tela foram observados os princípios da pesquisa qualitativa, e a pesquisa-ação existencial. Os dispositivos de produção de dados utilizados foram a observação participante, registro fotográfico, videográfico e portifólio de documentos disponibilizados pela escola. Para a etapa diagnóstica, destacada neste artigo, demonstrar-se-á o contexto da Educação Infantil em uma escola campesina - Escola Municipal Sérgio Carneiro – e o trabalho desenvolvido no período pandêmico. Como intervenção, no bojo da pesquisa-ação, a posteriori, apresenta-se a construção de um novo baú (espaço em que materiais não estruturados serão disponiblizados às crianças da escola referida) construído com elementos específicos dessa cultura campesina, com forte influência indígena para sequência da pesquisa.


Sign in / Sign up

Export Citation Format

Share Document