Evolutionary Models
Mostrando 1-12 de 315 artigos, teses e dissertações.
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1. O debate inesgotável: causas sociais e biológicas do colapso demográfico de populações ameríndias no século XVI
Resumo No século XX, estimativas populacionais para o hemisfério ocidental, as Américas, sobre o período que antecedeu à chegada de Colombo variaram entre dez milhões até mais de cem milhões. Essa grande discrepância é fundamental para avaliar o peso das epidemias na brusca redução demográfica que se seguiu. O fato é que houve um colapso demogr
Bol. Mus. Para. Emílio Goeldi. Ciênc. hum.. Publicado em: 02/12/2019
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2. Lithogeochemical and Nd-Sr isotope data of the orthogranulites of the Juiz de Fora complex, SE-Brazil: insights from a hidden Rhyacian Orogen within the Ribeira belt
Abstract New petrography, geochemistry and Sm-Nd and Sr data from the orthogranulites of the Juiz de Fora complex in southern Rio de Janeiro State and compiled information provide insights on the petrogenetic and tectonic evolution. The complex comprises several geochemical groups including mafic orthogranulites (three tholeiitic and one alkaline) and felsic
Braz. J. Geol.. Publicado em: 24/10/2019
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3. Nota sobre o sistema de parentesco em Proto-Tupí-Guaraní
Resumo Este estudo explora o sistema de terminologia de parentesco da língua Proto-Tupí-Guaraní (PTG) a partir de uma perspectiva interdisciplinar, que soma contribuições da Etnologia, da Linguística Histórica e dos trabalhos etnográficos realizados com povos Tupí-Guaraní. Fazem-se inferências sobre pré-história cultural utilizando métodos filo
Bol. Mus. Para. Emílio Goeldi. Ciênc. hum.. Publicado em: 29/04/2019
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4. Strut-and-tie models for linear and nonlinear behavior of concrete based on topological evolutionary structure optimization (ESO)
Resumo A busca por sistemas resistentes representativos para estrutura de concreto requer profundo conhecimento sobre seu comportamento mecânico. Os modelos de bielas e tirantes são procedimentos clássicos utilizados no dimensionamento do concreto armado onde existem concentrações de tensão, as chamadas regiões descontínuas da estrutura. No entanto,
Rev. IBRACON Estrut. Mater.. Publicado em: 2019-02
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5. 2D magnetometric modeling of a basic-intermediate intrusion geometry: geophysical and geological approaches applied to the Limeira intrusion, Paraná Magmatic Province (SP, Brazil)
ABSTRACT: The Limeira Intrusion is an occurrence related to the Mesozoic continental flood basalts of Paraná Magmatic Province, cropping out at the eastern São Paulo state. It is made up of basic-intermediate rocks with a great diversity of structures, textures and modal compositions, related to specific evolutionary process in a magma chamber. Previous ge
Braz. J. Geol.. Publicado em: 2018-06
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6. Algorithmic Formulations of Evolutionary Anisotropic Plasticity Models Based on Non-Associated Flow Rule
Abstract In the present paper, orthotropic elasto-plastic constitutive formulations for sheet metal forming based on non-associated flow rule that assume distortion of yield function/plastic potential with ongoing deformation process are analyzed. The yield function/plastic potential are considered as two different functions with functional form as orthotrop
Lat. Am. j. solids struct.. Publicado em: 2017-10
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7. Phylogenetic community structure reveals differences in plant community assembly of an oligotrophic white-sand ecosystem from the Brazilian Atlantic Forest
ABSTRACT Mussununga, an oligotrophic sandy savanna ecosystem, comprises distinct physiognomies along fire, water and nutrient availability gradients. Grasslands and woodlands are constrained at the opposite poles of these gradients, with grasslands occurring in areas with poorer soils and higher levels of both water-stress and fire intensity. According to th
Acta Bot. Bras.. Publicado em: 21/09/2017
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8. Structural insights into leishmanolysins encoded on chromosome 10 of Leishmania (Viannia) braziliensis
BACKGROUND Leishmanolysins have been described as important parasite virulence factors because of their roles in the infection of promastigotes and resistance to host’s defenses. Leishmania (Viannia) braziliensis contains several leishmanolysin genes in its genome, especially in chromosome 10. However, the functional impact of such diversity is not under
Mem. Inst. Oswaldo Cruz. Publicado em: 2017-09
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9. Evaluation of MC1R high-throughput nucleotide sequencing data generated by the 1000 Genomes Project
Abstract The advent of next-generation sequencing allows simultaneous processing of several genomic regions/individuals, increasing the availability and accuracy of whole-genome data. However, these new approaches may present some errors and bias due to alignment, genotype calling, and imputation methods. Despite these flaws, data obtained by next-generation
Genet. Mol. Biol.. Publicado em: 08/05/2017
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10. Sistema nacional de inovação e restrição externa ao crescimento
RESUMO According to the literature on export-led growth models differences in income elasticities of demand for imports and exports among countries bring about different degrees of external constraint on growth. However, there is not in this literature an explanation that uses the Evolutionary concept of National Innovation System (NIS) that shows why there
Brazil. J. Polit. Econ.. Publicado em: 2016-12
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11. Phylogenetic analysis of Dengue virus 1 isolated from South Minas Gerais, Brazil
Abstract Dengue is a major worldwide public health problem, especially in the tropical and subtropical regions of the world. Primary infection with a single Dengue virus serotype causes a mild, self-limiting febrile illness called dengue fever. However, a subset of patients who experience secondary infection with a different serotype can progress to a more s
Braz. J. Microbiol.. Publicado em: 2016-03
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12. Developing and Multi-Objective Optimization of a Combined Energy Absorber Structure Using Polynomial Neural Networks and Evolutionary Algorithms
Abstract In this study a newly developed thin-walled structure with the combination of circular and square sections is investigated in term of crashworthiness. The results of the experimental tests are utilized to validate the Abaqus/ExplicitTM finite element simulations and analysis of the crush phenomenon. Three polynomial meta-models based on the evolved
Lat. Am. j. solids struct.. Publicado em: 2016