Geometrical Patterns
Mostrando 1-11 de 11 artigos, teses e dissertações.
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1. Ontogenia craniana comparada de Arctocephalus australis, Callorhinus ursinus e Otaria byronia (Otariidae: Pinnipedia)
The search for mechanisms that can generate major morphological changes has led to the study of ontogeny, in part because some kinds of modifications of ontogenies seem an excelent way to generate major phenotypic change. We focus here on Arctocephlaus australis, Callorhinus ursinus and Otaria byronia with the aim of contributing to the understanding of the
Publicado em: 2009
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2. Computational methods for analysis and characterization of the relationship between anatomy and gene expression in biological systems / Métodos computacionais para a caracterização e análise da relação entre anatomia e expressão gênica em sistemas biológicos.
The areas of cell and molecular biology have accumulated a large number of experimental facts, such as genomic sequences and protein structure. However, this is not sufficient to the understanding of biological systems, even to explain the intricate dynamical interactions between gene expression and anatomical development. In order to characterize and analyz
Publicado em: 2007
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3. Fronts and frontogenesis during summer: geometrical and dynamical aspects and the influence over rainfall on the South American subtropics / Frentes e frontogênese no verão: aspectos geométricos, dinâmicos e impactos sobre as chuvas nos subtrópicos da América do Sul
Three different aspects related to summer precipitation over subtropical South America (SA) and the continental pattern of humidity transport in that season are studied. Firstly, a climatological point of view is adopted and it is shown that most of the humidity that enters SA through its northern coast, up to Par´a, comes from the tropical Northern Atlanti
Publicado em: 2007
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4. The study of the frieze patterns by Cabri-Géomètre / O estudo dos frisos no ambiente informatizado Cabri-Géomètre
O trabalho pretende fazer um estudo de algumas transformações geométricas no plano Euclidiano a partir da dimensão artística dos frisos (faixas). O objetivo visado foi verificar em que medida o uso dos frisos com a ajuda do software de geometria dinâmica Cabri-Géomètre-II contribui para articular e dar significado aos conceitos de translação, simet
Publicado em: 2005
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5. Economic viability of agroforestry systems in terra firme and varzea ecosystems in the state of amazonia: a case study. / Viabilidade econômica em sistemas agroflorestais nos ecossistemas de terra firme e várzea no estado do Amazonas: um estudo de casos.
The objective of this study was the estimation of the economic viability of Agroforestry Systems (SAFs) in two Amazon ecosystems (terra firme and varzeas) near Manaus/AM. The sample used had 21 observations of farmers adopting SAFs: 13 located in areas of Terra Firme in the Manacapuru/AM municipality; and, 8 located on the right margin of Solim
Publicado em: 2005
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6. Reconhecimento de padrões proteômicos e genômicos por aprendizagem de máquinas para o disgnóstico médico. / Employ machine learning to unveil encrypted molecular patterns within proteomic and genomic profiles to assist in personalized medical diagnosis.
Motivation: Employ machine learning to unveil encrypted molecular patterns within proteomic and genomic profiles to assist in personalized medical diagnosis. Results and conclusions: 1. Proteomic profile studies: Patients with Hodgkins disease (HD), a rare type of lymphoma, had their serum proteomic profile compared to control subjects (CS) in order to searc
Publicado em: 2005
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7. Aspectos exocoriales de huevos de Triatoma patagonica Del Ponte, 1929 por microscopía electrónica de barrido
The geometrical patterns of egg cells of Triatoma patagonica Del Ponte, 1929, a species considered to be an active vector of Chagas' disease, were studied by scanning electron microscopy (SEM). Eggs of known age were selected according to their morphological characteristics, namely those which were 5 days old, 14 days old, and those which were hatched. Image
Entomología y Vectores. Publicado em: 2004-12
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8. From sequences of geometrical patterns to the introduction to algebraic thought / Das seqüências de padrões geométricos à introdução ao pensamento algébrico
The aim of this research is to study the introduction to the geometrical thought by means of sequences of geometrical patterns. Furthermore, we present an approach to pre-algebra in the elementary education and a discussion on the learning of such subject by means of a didactical series consisting of eight activities elaborated from the use of a series of ge
Publicado em: 2003
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9. Parallel processing of serial movements in prefrontal cortex
A key idea in Lashley's formulation of the problem of serial order in behavior is the postulated neural representation of all serial elements before the action begins. We studied this question by recording the activity of individual neurons simultaneously in small ensembles in prefrontal cortex while monkeys copied geometrical shapes shown on a screen. Monke
The National Academy of Sciences.
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10. MDB: the Metalloprotein Database and Browser at The Scripps Research Institute
The Metalloprotein Database and Browser (MDB; http://metallo.scripps.edu) at The Scripps Research Institute is a web-accessible resource for metalloprotein research. It offers the scientific community quantitative information on geometrical parameters of metal-binding sites in protein structures available from the Protein Data Bank (PDB). The MDB also offers
Oxford University Press.
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11. The vav exchange factor is an essential regulator in actin-dependent receptor translocation to the lymphocyte–antigen-presenting cell interface
During the interaction of a T cell with an antigen-presenting cell (APC), several receptor ligand pairs, including the T cell receptor (TCR)/major histocompatibility complex (MHC), accumulate at the T cell/APC interface in defined geometrical patterns. This accumulation depends on a movement of the T cell cortical actin cytoskeleton toward the interface. Her
The National Academy of Sciences.