O tempo vertical e a dimensão do poético na obra de Clarice Lispector: uma leitura bachelardiana

A presença marcante de uma prosa-poética na produção ficcional de Clarice Lispector possibilitou-nos exemplificar algumas noções centrais (tempo vertical e instante poético) na rica e sugestiva reflexão de Gaston Bachelard acerca do universo poético

A figura do poeta em Friedrich von Hardenberg (Novalis) e Gaston Bachelard: algumas considerações

Através do Fogo - elemento marcante tanto em Novalis (século XVIII) quanto em Gaston Bachelard (século XX), pudemos ensaiar uma aproximação entre esses dois autores, distantes no tempo, mas próximos no tocante à valorização da imaginação (estética).

O telurismo e a poética de Manoel de Barros em Tratado geral das grandezas do ínfimo

This study aims to investigate the manifestation of the tellurism in the book Tratado Geral das Grandezas do Ínfimo (2001), written by the contemporary poet Manoel de Barros. Our intention is to examine how the poet works with this aspect in his poetry and how he uses it in his poetic conception. This research was motivated by his earth language which internalizes the man and the earth cultural elements, it´s how if the poet scratches it to find his roots and to create his poetic language, the mato-grossense poet moves the earth in search of the uselessness and he also does it in search of supposed uselessness of expression. His poetic universe, his “swamp”, seems to have no limits, its elements move in complete freedom, things, beings and words that once seemed not to communicate themselves, meet and mix like an alchemical process, this is his poetry origin

O poético alinhave de Murilo Mendes: o poeta, a musa e a metapoesia em As Metamorfoses

Lying under the contribution of a display of characteristics with multiple meanings (Catholicism, Surrealism, unite of contraries, and the dialogue with other types of art), Murilo Mendes focalizes some subjects that are made to become appealing in his works. Some of these subjects appear in his 1945’s poetry book, As metamorfoses, the object of analysis in this present work: the poet’s figure, insert in the historical view of the World War II and by the poet devastated; the muse’s figure, carrier of the sacred and the profane, whose body represents a repository of descriptions with surrealistic meanings, that is shown indistinctly as the poetry itself; and, concluding, the poetry (or the metapoetry) expressed in this context (historical and literary). Therefore, we intend to search, based in the analysis of poems, how each of this instances are configured inside the poetic universe of Murilo Mendes, with the intention of enlighten the constitution of the sewing made of them by the poet from Juiz de Fora; instances that are very precious when we deal with the poetry that gives to his writings the patent feature of modernity.

Corpo lavrado: a poesia telúrica de Ana Paula Tavares

In this paper we analyze how the symbols of land and woman are articulated in the lyric from Ana Paula Tavares. Such motifs, applicants at O lago da lua (1999), will take on a structuring in the poetic universe from this Angolan writer, because architect his being in the world at an existential level and political. Paula Tavares gives her voice to express, with defiance and tenderness, the bitter cry of women prisoners in their own silence. The symbiosis between land and woman works as formative and empowering element of identity

Determining the shape of the universe using discrete sources

Suppose we have identified three clusters of galaxies as being topological copies of the same object. How does this information constrain the possible models for the shape of our universe? It is shown here that, if our universe has flat spatial sections, these multiple images can be accommodated within any of the six classes of compact orientable three-dimensional flat space forms. Moreover, the discovery of two more triples of multiple images in the neighbourhood of the first one would allow the determination of the topology of the universe, and in most cases the determination of its size.

The energy of the universe in teleparallel gravity

The teleparallel versions of the Einstein and the Landau-Lifshitz energy-momentum complexes of the gravitational field are obtained. By using these complexes, the total energy of the universe, which includes the energy of both the matter and the gravitational fields, is then obtained. It is shown that in the case of a closed universe, the total energy vanishes independently of the pseudotensor used, as well as of the three dimensionless coupling constants of teleparallel gravity.

Casimir energy in a small volume multiply connected static hyperbolic preinflationary universe

A few years ago, Cornish, Spergel and Starkman (CSS) suggested that a multiply connected small universe could allow for classical chaotic mixing as a preinflationary homogenization process. The smaller the volume, the more important the process. Also, a smaller universe has a greater probability of being spontaneously created. Previously DeWitt, Hart and Isham (DHI) calculated the Casimir energy for static multiply connected fat space-times. Because of the interest in small volume hyperbolic universes (e.g., CSS), we generalize the DHI calculation by making a numerical investigation of the Casimir energy for a conformally coupled, massive scalar field in a static universe, whose spatial sections are the Weeks manifold, the smallest universe of negative curvature known. In spite of being a numerical calculation, our result is in fact exact. It is shown that there is spontaneous vacuum excitation of low multipolar components.

Holographic dark energy and the universe expansion acceleration

By incorporating the holographic principle in a time-depending Lambda-term cosmology, new physical bounds on the arbitrary parameters of the model can be obtained. Considering then the dark energy as a purely geometric entity, for which no equation of state has to be introduced, it is shown that the resulting range of allowed values for the parameters may explain both the coincidence problem and the universe accelerated expansion, without resorting to any kind of additional structures. (C) 2006 Elsevier B.V. All rights reserved.

On the birth of a closed hyperbolic universe

We clarify and develop the results of a previous paper on the birth of a closed universe of negative spatial curvature and multiply connected topology. In particular we discuss the initial instanton and the second topology change in more detail, This is followed by a short discussion of the results.

Exploring the global topology of the universe

We review the work done by our group on cosmic topology. It ranges from early atempts to solve a famous controversy about quasars thought the multiplicity of images, to quantum cosmology in this context and an application to QED renormalization.

Realistic equations of state for the primeval universe

Equations of state for the early universe including realistic interactions between constituents are formulated. Under certain hypotheses, these equations are able to generate an inflationary regime prior to the period of the nucleosynthesis. The resulting accelerated expansion is intense enough to solve the flatness and horizon problems. In the cases of a curvature parameter. equal to 0 or + 1, the model is able to avoid the initial singularity and offers a natural explanation for why the universe is in expansion. All the results are valid only for a matter-antimatter symmetric universe.

Evolution of spherical non-uniform perturbations in the universe

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

SMALLEST UNIVERSE OF NEGATIVE CURVATURE

The smallest known three-dimensional closed manifold of curvature k = -1 was discovered a few years ago by Weeks. This kind of manifold is constructed from a hyperbolic polyhedron with faces pair-wise identified. Here it is used as the comoving spatial section of a Friedmann cosmological model, in the spirit of Ellis and Schreiber's idea of small universes. Its nontrivial global topology has the effect of producing multiple images of single cosmic sources, and this is the basis of an attempt to solve a famous controversy about the redshifts of quasars.