Annihilation
Mostrando 1-12 de 77 artigos, teses e dissertações.
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1. MEMORY AND TESTIMONY IN EXTRAORDINARY TIMES
Abstract This paper analyzes two parallel and opposed testimonies of mass annihilation in World War II: Primo Levi’s report of his gruesome experiences in Auschwitz, in The Drowned and the Saved; the testimony of the fire-bombing of Dresden, that killed 130,000 civilians in 1945, recorded by a young American POW, private Kurt Vonnegut Jr, in his novel Slau
Ilha Desterro. Publicado em: 2021-08
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2. COSMOPOLITISMO E PERFORMATIVIDADE: CATEGORIAS PARA UMA ANÁLISE DAS COMPETÊNCIAS NA BASE NACIONAL COMUM CURRICULAR
RESUMO: O artigo discute as categorias de conformação das subjetividades adaptadas ao cenário social de crise do capital, especificamente as categorias cosmopolitismo e performatividade, e como a categoria de competências, enfatizada na Base Nacional Comum Curricular, se relaciona com elas. As reformas educativas neoliberais possuem o papel de produzir c
Educ. rev.. Publicado em: 25/11/2019
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3. Lacan e a experiência mística à luz da psicanálise
O presente artigo apresenta como Jacques Lacan inaugura uma nova maneira de abordar a experiência mística à luz da psicanálise. Contrapondo-se a tendências no campo da psicologia, da psiquiatria e da psicanálise de patologizar esse fenômeno, reduzindo-o à sintomatologia histérica ou psicótica, o mestre francês aproximou o percurso do analista daqu
Rev. latinoam. psicopatol. fundam.. Publicado em: 24/10/2019
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4. Investigation on Electrical Properties and Microdefects of Nb5+-Doped BaTiO3 Based Ceramics by Positron Annihilation Techniques
The influence of the Nb5+-doped content and the doping CaCO3 on the electrical properties and the microdefects of BSTN ceramics by Positron Annihilation Techniques were studied, which were fired at 1350 ºC for 2 hours in air. The PTCR characteristics in the BSTN samples were also investigated. Moreover, the information on microdefects in BSTN ceramics was d
Mat. Res.. Publicado em: 23/09/2019
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5. Changes in the crystalline degree in neutron irradiated EPDM viewed through infrared spectroscopy and inelastic neutron scattering
ABSTRACT The changes in the degree of crystallinity in commercial Ethylene Propylene Diene rubber-type M (EPDM) irradiated with neutrons at different doses has been studied by means of inelastic neutron scattering and infrared absorption spectroscopy experiments. EPDM samples were taken from the housing of non-ceramic electrical insulators which are used in
Matéria (Rio J.). Publicado em: 19/07/2018
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6. ¿Hegel filósofo de la diferencia? Reflexiones sobre la concepción hegeliana de la identidad 1
ABSTRACT The Hegelian philosophy in general, and in particular the “Science of Logic” and the treatment that in this is made about notions as identity and difference, generated since its conception a countless critical positions such as those of Schelling, the left Hegelian and, in general, of all those philosophers who, accordingly with the posible prac
Kriterion. Publicado em: 2017-12
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7. Polydimethylsiloxane Membranes Containing Multi-walled Carbon Nanotubes for Gas Separation
Polydimethylsiloxane (PDMS) membranes with different concentrations of multi-walled carbon nanotubes were prepared in order to evaluate their gas separation performances. Mixed matrix membranes were characterized by scanning electron microscopy, thermogravimetric analysis, Fourier transformed infrared, positron annihilation lifetime and Raman spectroscopies
Mat. Res.. Publicado em: 17/08/2017
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8. Positron Annihilation Spectroscopy Study on Annealing Effect of CuO Nanoparticles
The microstructure and defects of CuO nanoparticles under isochronal annealing were investigated by positron annihilation spectroscopy (PAS), X-ray diffraction (XRD) and scanning electron microscope (SEM). XRD and SEM results indicated that the average grain sizes of CuO nanoparticles grew slowly below 800 °C, and then increased rapidly with the annealing t
Mat. Res.. Publicado em: 23/02/2016
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9. Thermal Stability and the Matrix Induced Brittleness in a Ti-based Bulk Metallic Glass Composite
Crystallization kinetics and nanocrystalline induced brittleness in an in-situ dendrites reinforced Ti44Zr20Nb12Cu5Be19 bulk metallic glass (BMG) composites were investigated. The activated energy of the present Ti-based metallic glass matrix is obtained to be about 201 KJ/mol. As the annealing temperature rises, the annihilation of free volume is believed t
Mat. Res.. Publicado em: 17/11/2015
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10. A positron annihilation study of ZnO prepared by thermal oxidation at different temperatures
ZnO particles were prepared from Zn nanoparticles by thermal oxidation in air, over a temperature range of 500 to 900 ºC. The microstructure of ZnO was investigated by SEM and XRD, showing that the thermal oxidation temperature affected the particle growth mechanism, morphology, and microstructure. Positron annihilation spectroscopy indicated that the therm
Mat. Res.. Publicado em: 2014-12
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11. Caracterización de nanoestructuras sub-superficiales utilizando espectroscopía de aniquilación de positrones
Positron annihilation spectroscopy (PAS) has proved to be a powerful tool for the study of defects in solids due to its high sensitivity to the presence of defects such as vacancies, vacancy agglomerates or voids. Furthermore, PAS allows to identify and characterize each of these defects. There are different experimental variations of PAS technique such as p
Matéria (Rio J.). Publicado em: 2013-12
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12. Microstructural changes and effect of variation of lattice strain on positron annihilation lifetime parameters of zinc ferrite nanocomposites prepared by high enegy ball-milling
Zn-ferrite nanoparticles were synthesized at room temperature by mechanical alloying the stoichiometric (1:1 mol%) mixture of ZnO and α-Fe2O3 powder under open air. Formation of both normal and inverse spinel ferrite phases was noticed after 30 minutes and 2.5 hours ball milling respectively and the content of inverse spinel phase increased with increasing
Mat. Res.. Publicado em: 11/10/2012