Significato e contesti dell'identità singolare negativa da Lutero in poi

Il saggio propone un'analisi del ruolo, a livello ontolo-antropologico, del male e, a livello ontologico, del nulla nel pensiero post-luterano, a partire da Suarez per arrivare fino alla postmodernità

Hybrid Approach in Microscale Transport Phenomena: Application to Biodiesel Synthesis in Micro-reactors

A hybrid engineering approach to the study of transport phenomena, based on the synergy among computational, analytical, and experimental methodologies is reviewed. The focus of the chapter is on fundamental analysis and proof of concept developments in the use of nano- and micro-technologies for energy efficiency and heat and mass transfer enhancement applications. The hybrid approach described herein combines improved lumped-differential modeling, hybrid numericalanalytical solution methods, mixed symbolic-numerical computations, and advanced experimental techniques for micro-scale transport phenomena. An application dealing with micro-reactors for continuous synthesis of biodiesel is selected to demonstrate the instrumental role of the hybrid approach in achieving improved design and enhanced performance

Numerical tests of AdS/CFT at strong coupling

We study various correlation functions (two and three point functions) in a large $N$ matrix model of six commuting matrices with a numerical Monte Carlo algorithm. This is equivalent to a model of a gas of particles in six dimensions with a confining quadratic potential and logarithmic repulsions at finite temperature, where we are measuring the leading order non-gaussianities in the thermal fluctuations. This is a simplified model of the low energy dynamics of N=4 SYM at strong coupling. We find strong evidence that the simplified matrix model matches with the dual gravitational description of three point functions in the AdS/CFT correspondence.Comment: 23 pages, 7 figures, revtex. v2: minor correction

O processo de produção de uma injustiça ambiental e seus impactos: o caso do CTR Rio em Seropédica

O artigo tem como objetivo contar um pouco da história da implementação do aterro sanitário de Seropédica (CTR Rio) para receber todo o lixo do município do Rio de Janeiro, dentre outros municípios, ressaltando a frágil relação intermetrópole, em que a cidade central reforça o papel de zona de sacrifício da cidade periférica e, ainda, os reais impactos socioambientais, positivos e negativos, do funcionamento da unidade. Para tal, traz alguns referenciais teóricos, destacando o processo de metropolização em curso que, à luz da teoria da Justiça Ambiental, demonstra a nova função que Seropédica passa a desenvolver na dinâmica metropolitana.The article aims to tell a short history about the Seropédica landfill (CTR Rio) installation to receive all the waste from the municipality of Rio de Janeiro, among other municipalities, underscoring the fragile inter-metropolis relationship, on what the central city reinforces the role of the peripheral city as a sacrifice zone, and also the real, positive and negative, socioenvironmental impacts of the unit’s operation. It brings some theoretical references, highlighting the ongoing metropolization process that, in the light of the Environmental Justice theory, demonstrates the new function that Seropédica develops in the metropolitan dynamics.L’article vise à raconter un peu l’histoire de la mise en place de la décharge de Seropédica (CTR Rio) pour recevoir toutes les ordures de la municipalité de Rio de Janeiro, entre autres municipalité, en mettant en évidence la fragile relation intermétropole, dans laquelle la ville centrale renforce le rôle de la zone de sacrifice de la ville périphérique et, aussi, les impacts socio-environnementaux réels, positifs et négatifs, du fonctionnement de l’unité. À cette fin, il apporte quelques références théoriques, mettant en évidence le processus de métropolisation en cours qui, à la lumière de la théorie de la Justice Environnementale, démontre la nouvelle fonction que Seropédica commence à développer dans la dynamique métropolitaine.El articulo tiene el objetivo narrar la historia da implantación del relleno sanitario de Seropédica (CTR Rio) para recibir la toda la basura del municipio de Rio de Janeiro y de otros municipios, destacando la frágil relación intra metropolitana, en que la ciudad central refuerza el papel de la ciudad periférica como zona de sacrificio y, también, los reales impactos socioambientales, positivos y negativos, de la operación de la unidad fabril. Para esto, traemos algunas referencias teóricas, destacando el proceso de metropolización en curso que, a la luz de la teoría de la justicia ambiental, apunta la nueva función que Seropédica pasa a desarrollar en la dinámica metropolitana

Topological BF Theories in 3 and 4 Dimensions

In this paper we discuss topological BF theories in 3 and 4 dimensions. Observables are associated to ordinary knots and links (in 3 dimensions) and to 2-knots (in 4 dimensions). The vacuum expectation values of such observables give a wide range of invariants. Here we consider mainly the 3-dimensional case, where these invariants include Alexander polynomials, HOMFLY polynomials and Kontsevich integrals.Comment: 25 pages, latex, no figures. Transmission problems have been solve

Enhanced Eshelby twist on thin wurtzite InP nanowires and measurement of local crystal rotation

We have performed a detailed study of the lattice distortions of InP wurtzite nanowires containing an axial screw dislocation. Eshelby predicted that this kind of system should show a crystal rotation due to the dislocation induced torque. We have measured the twisting rate and the dislocation Burgers vector on individual wires, revealing that nanowires with a 10-nm radius have a twist up to 100% larger than estimated from elasticity theory. The strain induced by the deformation has a Mexican-hat-like geometry, which may create a tube-like potential well for carriers