Multipolar Expansion
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. Soluções Exatas de equações de Einstein para buracos negros e aneis de materia / Exact solutions of Einstein s equations for black holes and matter rings
Nesta tese, estudamos o problema de um anel delgado de matéria de densidade constante com um buraco negro de Kerr em seu centro. Nosso objetivo foi resolver as equações de Einstein no vácuo com simetria axial para esse sistema gravitacional. Para fazer a sobreposição não-linear do anel com o buraco negro (BN), utilizamos o método de Belinsky e Zakhar
Publicado em: 2009
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2. Models of disks and other self-gravitating structures in general relativity / Modelos de discos e outras estruturas auto-gravitantes em relatividade geral
Exact solutions of Einstein field equations that represent space-times with disklike matter distributions are constructed using the inverse method (image method). These solutions include static thin perfect uid disks with and without halos, static thin charged perfect uid disks and models of thin charged dust disks. New solutions in various coordinate system
Publicado em: 2006
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3. Calha Norte Project: politics of national defense and hemisferic security guard in the contemporary government / Projeto Calha Norte: política de defesa nacional e segurança hemisférica na governança contemporânea
This thesis highlights the analysis of the institutional and geo-strategic path of the "Projeto Calha Norte" (Northern Border Project - NBP) influenced by the traditional models of the National Security Doctrine (NSD) of the sixties and seventies. The goal of the National Security Doctrine (a strategy widely applied in Brazil during the military regime) was
Publicado em: 2005
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4. On the calculation of magnetic fields based on multipole modeling of focal biological current sources.
Spatially restricted biological current distributions, like the primary neuronal response in the human somatosensory cortex evoked by electric nerve stimulation, can be described adequately by a current multipole expansion. Here analytic formulas are derived for computing magnetic fields induced by current multipoles in terms of an nth-order derivative of th
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5. Microtubule Asymmetry during Neutrophil Polarization and Migration
The development of cell polarity in response to chemoattractant stimulation in human polymorphonuclear neutrophils (PMNs) is characterized by the rapid conversion from round to polarized morphology with a leading lamellipod at the front and a uropod at the rear. During PMN polarization, the microtubule (MT) array undergoes a dramatic reorientation toward the
The American Society for Cell Biology.