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Search Results: 1 - 10 of 493 matches for " Kleber Amora "
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O lugar da Introdu o a um projeto de um sistema da filosofia da natureza na filosofia da natureza de Schelling
Kleber Amora
Princípios : Revista de Filosofia , 2010,
Abstract: Schelling, F. W. J
SCHELLING E O CARáTER DUAL DA LUZ SCHELLING AND THE DUAL NATURE OF LIGHT
Kleber Carneiro Amora
Philósophos : Revista de Filosofia , 2009, DOI: 10.5216/phi.v13i1.7993
Abstract: Neste trabalho procuramos mostrar como Schelling, baseado na dialética especulativa, antecipou, tal como o fizera em rela o a inúmeros outros fen menos físicos, uma importante teoria sobre a natureza da luz, a qual o físico Louis de Broglie demonstrou ser verdadeira apenas 150 anos mais tarde.
Introdu o ao Projeto de um Sistema da Filosofia da Natureza ou Sobre o Conceito da Física Especulativa e A Organiza o interna de um Sistema desta Ciência
Friedrich W. J. Schelling,Kleber Carneiro Amora
Princípios : Revista de Filosofia , 2010,
Abstract: Schelling, F. W. J.
Influence of Elevation on Carbonate Contents in Stratified Soils, Northern Great Basin and Adjacent Mountains, U.S.A  [PDF]
Arno Kleber
Open Journal of Soil Science (OJSS) , 2011, DOI: 10.4236/ojss.2011.12009
Abstract: Many soils in the western U.S.A. contain one or several carbonate-enriched zones (CEZ). Their carbonate admixture is often attributed to steady eolian influx, with intermittent leaching episodes of variable intensity leading to pedogenic enrichment at various depths. This hypothesis would require carbonate contents to decrease and depths to those horizons to increase with elevation. Here I compute correlations for the upper three CEZ of the surface soil and of up to two buried soils between elevation, carbonate content, depth to horizon, and particle-size distribution to test for elevation- dependent trends. Actually, carbonate-content decreases with elevation indicate such trends exist and can be determined with this approach. However, some significant relationship of elevation and depth to CEZ is not supported by the data. Furthermore, influence of local carbonate on CEZ in the surface soils calls for lateral translocation. Gravelly, now-buried sediments collected eolian carbonate better than finer ones, which finding implies these sediments were at the surface once and fossilized later. Altogether, the data indicate cyclical evolution: Several cycles of the formation of colluvial slope deposits with admixed carbonate-bearing loess particles were each followed by pedogenic translocation of the carbonate just to the depth of the next parent-material disconformity. Thus, disconformities are major triggers of soil-carbonate accumulation.
A tradu o química de experimentos alquímicos envolvendo água régia em Robert Boyle
Kleber Cecon
Scientiae Studia , 2012,
Abstract: Recentemente, alguns acadêmicos têm demonstrado que a tradu o química pode auxiliar o trabalho histórico. O objetivo deste trabalho é traduzir alguns experimentos alquímicos de Robert Boyle para a química contemporanea, particularmente, aqueles que envolvem a água régia. A maior parte desses experimentos tem rela o com o mecanicismo boyleano, com receitas de produ o de compostos e com a padroniza o de procedimentos químicos. Muitos deles envolvem descri es precisas de propriedades, tais como o ponto de fus o, a mudan a de gosto, a libera o de som e bolhas, a corros o etc., que podem ser usadas como ferramentas de rastreamento para uma tradu o à nota o química atual. Recently some scholars have demonstrated that chemical translation can assist with historical work. The goal of this paper is to translate some of Robert Boyle's alchemical experiments involving aqua regia to contemporary chemistry. Most of them are related to his mechanistic ideas and addresses to routes of productions and for standardization of chemical procedures. Several involve precise descriptions of properties, such as melting point, change of taste, hissing, corrosion, bubbles etc., which may be very useful as tools for chemical translation.
Down the Rabbit Hole: How Cyberspace and Digital Copyright becomes “Curiouser and Curiouser”
Ariel Kleber
Dalhousie Journal of Interdisciplinary Management , 2011, DOI: 10.5931/djim.v7i2.80
Abstract: There are various metaphors that can be used to describe and analyze the phenomena and impact of the World Wide Web on present day society. One particularly pertinent metaphor is that of Alice in Wonderland as there are a number of correlations which can be drawn between the characters within the novel and various individuals, organizations, and policies that influence the internet. As such, this paper explores the metaphor between the internet and the characters who appear in Alice and Wonderland in terms of the characteristics they share with specific websites. These comparisons include: Alice and the user, Facebook and the Mad Hatter, and Google and the White Rabbit. By thinking of these websites in terms of their allegorical Wonderland character, it is easier to understand the effect and influence which they have upon our lives.
Goldbug Variations
Michael Kleber
Mathematics , 2005,
Abstract: This "Mathematical Entertainments" column from the Intelligencer is an exposition of current investigations, rooted in recent work of Jim Propp, into "quasirandom" analogues of random walk and random aggregation processes. Featured are the "Goldbugs" and the "Rotor-router". These are deterministic processes which simulate the random ones, for example having the same limiting states, but with faster convergence. The paper includes three large illustrations, which appear twice in the submission, as both raster image (.png) and postscript (.eps) files. The latter are much larger but needed for latex inclusion; the former are smaller, used by pdflatex, and better for pixel-level viewing.
Propagation of chaos for the spatially homogeneous Landau equation for Maxwellian molecules
Kleber Carrapatoso
Mathematics , 2012,
Abstract: We prove a quantitative propagation of chaos, uniformly in time, for the spatially homogeneous Landau equation in the case of Maxwellian molecules. We improve the results of Fontbona, Gu\'erin and M\'el\'eard \cite{FonGueMe} and Fournier \cite{Fournier} where the propagation of chaos is proved for finite time. Moreover, we prove a quantitative estimate on the rate of convergence to equilibrium uniformly in the number of particles.
Plucker Relations on Schur Functions
Michael Kleber
Mathematics , 1999,
Abstract: We present a set of algebraic relations among Schur functions which are a multi-time generalization of the ``discrete Hirota relations'' known to hold among the Schur functions of rectangular partitions. We prove the relations as an application of a technique for turning Plucker relations into statements about Schur functions and other objects with similar definitions as determinants. We also give a quantum analog of the relations which incorporates spectral parameters. Our proofs are mostly algebraic, but the relations have a clear combinatorial side, which we discuss.
Finite Dimensional Representations of Quantum Affine Algebras
Michael Kleber
Mathematics , 1998,
Abstract: We investigate the characters of some finite-dimensional representations of the quantum affine algebras $U_q(\hat{g})$ using the action of the copy of $U_q(g)$ embedded in it. First, we present an efficient algorithm for computing the Kirillov-Reshetikhin conjectured formula for these characters when $g$ is simply-laced. This replaces the original formulation, in terms of "rigged configurations", with one based on polygonal paths in the Weyl chamber. It also gives a new algorithm for decomposing a tensor product of any number of representations of $sl(n)$ corresponding to rectangular Young diagrams, in a way symmetric in all the factors. This section is an expanded version of q-alg/9611032 . Second, we study a generalization of certain remarkable quadratic relations that hold among characters of $sl(n)$ (the "discrete Hirota relations") whose solutions seem to be characters of quantum affine algebras. We use show that these relations have a unique solution over characters of $U_q(g)$.
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