critical spectrum
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2021 ◽  
Vol 14 (3) ◽  
pp. 674
Author(s):  
Adriana Pereira da Silva

O artigo objetiva evidenciar a influência da concepção crítico-libertadora e seus fundamentos sobre o direito à EJA, é observada na ação política da Educação Popular, tratada como um paradigma educacional, reconhecido como um conjunto, de ideias e propostas, que disputam um formato de direito à EJA. O estudo está fundamentado em dois autores de espectro critico: Freire (1986, 2006, 2010) por meio das categorias “politicidade”, “ser mais”, “conscientização” e em Dussel (2007) na abordagem da “ética humana”. A pesquisa filia-se a uma investigação qualitativa, estruturada em um estudo de caráter bibliográfico e de documentos que permite evidenciar as categorias citadas e compreendê-las numa experiência. Os resultados da pesquisa levaram a concluir que o direito à EJA pode ser influenciado pela concepção critico-libertadora, a qual se concretiza em paradigmas educacionais, os quais marcam um compromisso do Estado com o direito à educação, sob a ética humana que demanda respeito as especificidades, diversidades dos sujeitos jovens e adultos da EJA.Palavras-chave: Concepção crítico-libertadora; Direito à EJA; Paradigmas orientadores.The influence of the critical-liberating conception on the right to EJA: paradigms in disputesABSTRACTThe article aims to show the influence of the critical-liberating concept and its foundations on the right to EJA, it is observed in the political action of Popular Education, treated as an educational paradigm, recognized as a set of ideas and proposals that dispute a format of right to EJA. The study is based on two authors of critical spectrum: Freire (1986; 2006; 2010) through the categories “politicity”, “being more”, “awareness” and on Dussel (2007) in the approach of “human ethics”. The research is affiliated to a qualitative investigation, structured in a bibliographic and document study that allows to highlight the mentioned categories and understand them in an experience. The research results led to the conclusion that the right to EJA can be influenced by the critical-liberating conception, which is materialized in educational paradigms, which mark a commitment of the State with the right to education, under the human ethics that demand respect for specificities, diversities of young and adult subjects of EJA.Keywords: Critical-liberating conception; Right to EJA; Guiding paradigms.La influencia de la concepción crítico-liberadora sobre el derecho al EJA: paradigmas en las disputasRESUMENEl artículo pretende mostrar la influencia del concepto crítico-liberador y sus fundamentos sobre el derecho a la EJA, se observa en la acción política de la Educación Popular, tratada como paradigma educativo, reconocida como un conjunto de ideas y propuestas que disputan una formato de derecho a EJA. El estudio se basa en dos autores de espectro crítico: Freire (1986; 2006; 2010) a través de las categorías “politicidad”, “ser más”, “conciencia” y en Dussel (2007) en el enfoque de la “ética humana”. La investigación está adscrita a una investigación cualitativa, estructurada en un estudio bibliográfico y documental que permite resaltar las categorías mencionadas y comprenderlas en una experiencia. Los resultados de la investigación llevaron a la conclusión de que el derecho a la EJA puede verse influido por la concepción crítico-liberadora, que se materializa en paradigmas educativos, que marcan un compromiso del Estado con el derecho a la educación, bajo la ética humana que exige el respeto a la educación. especificidades, diversidades de sujetos jóvenes y adultos de EJA.  Palabras clave: Concepción crítico-liberadora; Derecho a EJA; Paradigmas rectores.


Universe ◽  
2020 ◽  
Vol 6 (9) ◽  
pp. 144
Author(s):  
Jan-Willem van Holten

This paper addresses the fate of extended space-time symmetries, in particular conformal symmetry and supersymmetry, in two-dimensional Rindler space-time appropriate to a uniformly accelerated non-inertial frame in flat 1+1-dimensional space-time. Generically, in addition to a conformal co-ordinate transformation, the transformation of fields from Minkowski to Rindler space is accompanied by local conformal and Lorentz transformations of the components, which also affect the Bogoliubov transformations between the associated Fock spaces. I construct these transformations for massless scalars and spinors, as well as for the ghost and super-ghost fields necessary in theories with local conformal and supersymmetries, as arising from coupling to two-dimensional (2-D) gravity or supergravity. Cancellation of the anomalies in Minkowski and in Rindler space requires theories with the well-known critical spectrum of particles that arise in string theory in the limit of infinite strings, and it is relevant for the equivalence of Minkowski and Rindler frame theories.


Author(s):  
J.W. Van Holten

This paper addresses the fate of extended space-time symmetries, in particular conformal symmetry and supersymmetry, in two-dimensional Rindler space-time appropriate to a uniformly accelerated non-inertial frame in flat 1+1-dimensional space-time. Generically, in addition to a conformal co-ordinate transformation, the transformation of fields from Minkowski to Rindler space is accompanied by local conformal and Lorentz transformations of the components, which also affect the Bogoliubov transformations between the associated Fock spaces. I construct these transformations for massless scalars and spinors, as well as for the ghost and super-ghost fields necessary in theories with local conformal and supersymmetries, as arising from coupling to 2-D gravity or supergravity. Cancellation of the anomalies in Minkowski and in Rindler space requires theories with the well-known critical spectrum of particles arising in string theory in the limit of infinite strings, and is relevant for the equivalence of Minkowski and Rindler frame theories.


2016 ◽  
Vol 14 (3) ◽  
pp. 167 ◽  
Author(s):  
Naim Kapucu, PhD ◽  
Brittany Haupt, MEd ◽  
Murat Yuksel, PhD

With the vast number of fragmented, independent public safety wireless communication systems, the United States is encountering major challenges with enhancing interoperability and effectively managing costs while sharing limited availability of critical spectrum. The traditional hierarchical approach of emergency management does not always allow for needed flexibility and is not a mandate. A national system would reduce equipment needs, increase effectiveness, and enrich quality and coordination of response; however, it is dependent on integrating the commercial market. This article discusses components of an ideal national wireless public safety system consists along with key policies in regulating wireless communication and spectrum sharing for public safety and challenges for implementation.


ACTA IMEKO ◽  
2012 ◽  
Vol 1 (1) ◽  
pp. 42
Author(s):  
Pablo Nicolas De Cesare

Non-linearity in the ISDB-T transmission chain causes intermodulation products that widens the spectrum emission and should be taken into account when assigning frequency channels. The characterization of the transmission spectrum mask is one of the most important measurements in order to achieve the best use of the electromagnetic spectrum. The use of critical mask defined in [1] allows allocations of co-site adjacent channels for an efficient use of the electromagnetic spectrum that is a finite and limited resource. This paper discusses different test procedures using spectrum analyzers and dedicated digital TV analyzers in order to measure the ISDB-T transmission mask.


2005 ◽  
Vol 70 (3) ◽  
pp. 406-435 ◽  
Author(s):  
Mustapha Mokhtar-Kharroubi ◽  
Mohammed Sbihi

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