Three Bodies Problem
Mostrando 1-12 de 26 artigos, teses e dissertações.
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1. Meiotic chromosomes and nucleolar behavior in testicular cells of the grassland spittlebugs Deois flavopicta, Mahanarva fimbriolata and Notozulia entreriana (Hemiptera, Auchenorrhyncha)
Spittlebugs annually infest pastures and cause severe damage, representing a serious problem for the tropical American beef cattle industry. Spittlebugs are an important biotic constraint to forage production and there is a lack of cytogenetic data for this group of insects. For these reasons, we conducted this work, in which the spermatogenesis and nucleola
Genetics and Molecular Biology. Publicado em: 26/03/2010
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2. Algoritmos para problemas de corte e empacotamento / Algorithms for cutting and packing problems
Several versions of Cutting and Packing problems are considered NP-hard and, if we consider that P ¿ NP, we do not have any exact polynomial algorithm for solve them. Practical applications arises for such problems and include: resources allocation for computers; cut of steel, wood, glass, aluminum, etc.; packing of objects; and, loading objects into contai
Publicado em: 2010
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3. Gravitational systems with variable mass : galaxy merger / Sistemas gravitacionais com massa variavel : merger de galaxias
We study the process of galactic merger, where galaxies are regarded as compact objects with time-dependent masses. This study is made through the analysis of the system s orbit. For this purpose, we consider the gravitational problem of two bodies exchanging mass with a surrounding atmosphere. The Gylden-Mestschersky problem is reviewed in order to be used
Publicado em: 2009
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4. REFOLDING IN HIGH HIDROSTATIC PRESSURE OF RECOMBINANT PROTEINS FROM INCLUSION BODIES IN ESCHERICHIA Coli / Renaturação em altas pressões hidrostáticas de proteínas recombinantes agregadas em corpos de inclusão produzidos em Escherichia coli
The expression of proteins as inclusion bodies in bacteria is a widely used alternative for production of recombinante protein. However, the aggregation is a problem often encountered during refolding of these proteins. High hydrostatic pressure are able to solubilize the inclusion bodies in the presence of low concentrations of denaturant reagents, encourag
Publicado em: 2009
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5. SIMULATION OF THE VERTICAL TRANSPORT OF ZINC, LEAD AND COPPER IN CONTAMINATED SOILS / SIMULAÇÃO DO TRANSPORTE VERTICAL DE ZINCO, CHUMBO E COBRE EM SOLOS CONTAMINADOS
The environmental contamination by metallic trace elements is a problem that is getting worse around the world due to the growth and the technologic development of the humanity. Among the main sources of this kind of contamination are the atmospheric deposition of particles in soils located around industrial complexes and the prolonged and concentrated appli
Publicado em: 2009
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6. Descartes e a demonstração da impossibilidade da reprodução mecanica da inteligencia / Descartes and the demonstration of the impossibility of the mechanical reproduction of intelligence
The present study is an analysis of the work of Descartes from that what it has most controversial of the mind-body problem. The metaphysical experiment, that leads Descartes from the discovery of the Cogito to the discovery of God and the world, allows the philosopher to derive three fundamental consequences: a) the mind is from immaterial nature (res cogit
Publicado em: 2009
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7. Uso de águas residuárias tratadas na cultura de hortaliças: avaliação de enteroparasitas e metais pesados / The use of treated residuary water to grow vegetables: assessment of enteroparasites and heavy metals.
Water shortage is a worldwide problem, and the use of residuary water is an important theme regarding the preservation of water bodies and conscious use of the resources available. This study aimed to evaluate the viability of using treated residuary water from the Biological Wastewater Treatment Plant of Ribeirão Preto (ETE-RP) to grow vegetables, through
Publicado em: 2009
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8. Entre o sublime nome de mãe e o monstruoso crime: Inventariando práticas de abortos e infanticídios na Paraíba (1960/1970) / Among the "innocent mother s name" and "crime monstrous": Inventorying practice of abortion and infanticide in Paraíba (1960/1970)
Between 1960 and 1970, the State of Paraíba seemed to enter significantly in the process of political, social, cultural, economic, would change its historical configuration appreciably, as the country itself. Transformations that bore the marks of the Civil-Military Stroke of 1964 in Brazil s history, still appear in a flagship development of pharmaceutical
Publicado em: 2009
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9. ENTRE SILÊNCIOS, SUSSURROS E GRITOS: O CORPO FEMININO ATRAVESSADO PELO CÂNCER DE MAMA
Being the cancer a disease that increasingly invades our time and spaces and understanding it as a complex disease process, filled with many advances, not many answers, but many meanings, it is proposed by this research. We take this way, as an object, the senses of/on the female body crossed by breast cancer. The study started from the experiment using the
Publicado em: 2009
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10. A family of vortex rings and a variational application to potential flows around three-dimensional bodies
A variational formulation and solution of general three-dimensional potential flows gave rise to the construction of a special family of ‘trial functions’. This family is composed by circular-sector vortex rings, here named α-rings, i.e., rings that are positioned on the border of a circular sector with aperture angle α. An explicit formula for the vel
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2008-06
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11. Ilustrar, modificar, manipular: Arte como questão de segurança da vida
The relation between art and lifes sciences is old, but it began to be seen as life security problem recently. We defend that this transformation happened because of two different types of question: (1) The growing evidence of the security in the government of bodies and life and (2) the change in art from the function of mimesis (emphasising the illustratin
Publicado em: 2006
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12. Orbital evolution and maneuvers around non-spherical bodies / Evolução orbital e manobras em torno de corpos não-esféricos
In the last years several asteroids had their shapes identified using images from space probes or through the indirect radar data determination. In a general way, these asteroids have forms quite different from spherical. Conventional spherical harmonic representations of the gravitational potential of such bodies require expansions of high degree and order,
Publicado em: 2006