Spatial Frame
Mostrando 13-24 de 58 artigos, teses e dissertações.
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13. A territorialidade dos centros públicos de acesso à Internet no município de Duque de Caxias / The territoriality of public centers of access to the Internet in Duque de Caxias
The purpose of the present study is to study the public centers of access to the Internet in Brazil. The methodology consists of identifying, as an example, the territoriality of the public centers of access to the Internet in Duque de Caxias, a town in Rio de Janeiro. The main aims of this work are to understand how the public centers of access to the Inter
Publicado em: 2008
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14. Tecendo uma cidade modelar: relações entre currículo, educação escolar e projeto da cidade de Curitiba na década de 1990
This research started from the fact that Curitiba has a city project which was explicitly developed in the 1990s engaging for its strength several groups from different fields, including the educational one. Thus, we aimed to answer the following question: how was the city project built and where can we place the school education in the relationships involve
Publicado em: 2008
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15. Interactive GPU-assisted ray tracing. / Traçado de raios interativo assistido pela unidade de processamento gráfico.
Known by its high computational cost and by the high quality rendered imagens, ray tracing has been most recently explored by the scientific community in researches for interactive and constant frame rate. Aiming for a new way for optimizing ray tracing, a new approach called GPU-assisted ray tracing is defined in this work. Its objective is to be a first st
Publicado em: 2007
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16. Conjunto de procedimentos de engenharia reversa para projeto de banco de dados espaciais / Set of reverse engineering procedures for spatial database design
Projetos de SIG (Sistemas de Informação Geográfica), em geral, ainda não apresentam modelo conceitual de banco de dados geográficos. Os implementadores de SIG se preocupam com a aquisição dos dados (captura e adaptação), que é a etapa mais cara, e dão, ainda, pouca atenção à modelagem. A utilização de modelos conceituais faz com que os usuár
Publicado em: 2007
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17. Thermal neutron computed tomography at the Argonauta Reactor
Since 1985 the Argonauta Reactor at the Instituto de Engenharia Nuclear - IEN/CNEN has been used as a source of thermal neutrons to acquire transmission-generated radiographic images. From that time until the end of the last century, some Universities and Research Institutions have as well used the irradiation facilities of this reactor for that purpose and
Brazilian Journal of Physics. Publicado em: 2005-09
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18. Interpretação de deformação e recalque na fase de montagem de estrutura de concreto com fundação em estaca cravada / Strain and settlement interpretation in the assembly of a concrete structure supported by driven piles
Although encouraged by several authors and by the Brazilian Foundation Code, reports of actual column loads measurement in natural scale are not frequent in our technical literature, especially in the case of buildings supported by deep foundations. Results of load and settlement measurements at 20 contiguous columns of a structure built in pre-cast reinforc
Publicado em: 2005
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19. Estudos moleculares da Selenocisteína Sintase (SELA) de Escherichia coli.
The study of translation processes attracts the interest of a wide range of research groups due to its main role in general cellular metabolism. In particular, the investigation of new amino acid residues, such as selenocysteine and pyrrolysin, which result in an expansion of the genetic code from the traditional 20 residues to a total of 22 residues up to t
Publicado em: 2005
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20. "Análise espacial da endemia hansênica no município de Fernandópolis-SP" / "Spatial analysis of the leprosy endemics in the Fernandópolis city municipality in the state of São Paulo"
The aim to the elimination of leprosy as a public health care problem to the year 2000, as proposed by the WHO, was stretched to the year 2005 in some countries. At present, the disease is considered endemics in 12 countries in the world, and Brazil, along with the eleven countries, both African and Asiatic, are responsible for the disease cases that are exi
Publicado em: 2003
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21. Color appearance: the effects of illumination and spatial pattern.
The color we perceive at each point in an image depends on information spread across the three spatial arrays of cone photoreceptors. I describe experiments aimed at clarifying how information is integrated across the spatial arrays to yield a color experience. We have found that changes of color appearance due to changes of the ambient illumination and the
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22. Both here and there: Simultaneous expression of autonomous spatial memories in rats
Foraging rats learned to avoid footshock that was present in a part of a circular arena that was either stable or rotating slowly in a lighted room. The rotation dissociated spatial information in the separate reference frames of the room and arena. After learning to avoid the shocked region in either condition, in the absence of shock, memory for this place
The National Academy of Sciences.
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23. A study on the role of the dorsal striatum and the nucleus accumbens in allocentric and egocentric spatial memory consolidation
There is now accumulating evidence that the striatal complex in its two major components, the dorsal striatum and the nucleus accumbens, contributes to spatial memory. However, the possibility that different striatal subregions might modulate specific aspects of spatial navigation has not been completely elucidated. Therefore, in this study, two different le
Cold Spring Harbor Laboratory Press.
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24. Understanding hippocampal activity by using purposeful behavior: Place navigation induces place cell discharge in both task-relevant and task-irrelevant spatial reference frames
Continuous rotation of an arena in a cue-rich room dissociates the stationary room-bound information from the rotating arena-bound information. This disrupted spatial discharge in the majority of place cells from rats trained to collect randomly scattered food. In contrast, most place cell firing patterns recorded from rats trained to solve a navigation task
The National Academy of Sciences.