Self Migration
Mostrando 13-24 de 59 artigos, teses e dissertações.
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13. Retroperitoneal migration of a self-inflicted ballpoint pen via the urethra
Numerous accounts documenting the introduction of foreign bodies into the urinary bladder have been reported. These foreign bodies are typically self-inserted via urethral but migration from adjacent organs by an ulcerative process and penetrating injuries are also reported. However, "contrary" migration of a self-inflicted vesical foreign body to the retrop
International braz j urol. Publicado em: 2006-04
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14. Uma anÃlise do fluxo migratÃrio brasileiro: migraÃÃo para regiÃes pobres e migraÃÃo de retorno
The goal of this dissertation was two folded. First, the pattern of migration to different economic regions in Brazil was analyzed. Then, the migratory return flow to a former place of birth, the so called return migration, was studied. The data shows that states or regions that traditionally provided workers to other regions in the country, like Minas Gerai
Publicado em: 2006
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15. Tolerance the Imperfections for the NIDIA: a Detection system of Intrusion Based on Intelligent Agents / Tolerância a Falhas para o NIDIA: um Sistema de detecção de Intrusão Baseado em Agentes Inteligentes
An Intrusion Detection System (IDS) is one tool among several existing ones to provide safety to a computational system. The IDS has the objective of identifying individuals that try to use a system in non-authorized way or those that have authorization but are abusing of their privileges. However, to accomplish the functions correctly an IDS needs to guaran
Publicado em: 2006
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16. Em qualquer chão: sempre gaúcho! A multiterritorialidade do migrante gaúcho no Mato Grosso / In any ground: always gaúcho! The multiterritoriality of the gaúcho migrant in Mato Grosso
The effort undertaken in this research was to investigate how the process of installation of the gaucho migrant in the north of Mato Grosso State happens. The basis of the analysis is the (re)construction of the gaúcha identity informed by the self-image of this social group which sees itself as an explorer, a pioneer and an enterprising that, leaving its o
Publicado em: 2006
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17. Correlation between luminescence polarization and molecular orientation in conjugated polymers / Correlação entre polarização da luminescência e orientação molecular em polímeros conjugados
The main goal of this work is the understanding of intermediated energy relaxation processes that are governed by Energy Transfer. Such processes strongly affect the optical properties of conjugated polymers, reducing the emission efficiency and the life time of OLEDs. We study specifically the polymer poly(p-phenylene vinylene), PPV, synthesized through the
Publicado em: 2006
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18. Multiple foreign bodies in the anterior and posterior urethra
Foreign bodies of the urethra and bladder are seen with iatrogenic injury, self-insertion, and rarely migration from adjacent sites. Treatment is focused on foreign body extraction, diagnosing complications, and avoiding compromise of erectile function. With advances in endourology, the majority of cases can now be managed endoscopically. We present a case o
International braz j urol. Publicado em: 2004-06
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19. FINANCIAL CONSTRAINTS, SELF-SELECTION AND BRAIN EFFECT: TWO ESSAYS ON MIGRATION / RESTRIÇÃO DE CRÉDITO, AUTO-SELEÇÃO E BRAIN EFFECT: DOIS ENSAIOS SOBRE MIGRAÇÃO
A literatura econômica que estuda migração sempre esteve preocupada com o impacto da migração sobre o bem-estar, seja na forma de imigração ou na forma de brain drain. Os dois artigos que compõem esta tese estão relacionados a este tema. Apesar do modelo de Roy concluir que os emigrantes são negativamente selecionados se a taxa de retorno à educa�
Publicado em: 2004
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20. COMPOSITE MATERIALS REINFORCED WITH NATURAL FIBRES: EXPERIMENTAL CHARACTERIZATION / MATERIAIS COMPÓSITOS REFORÇADOS COM FIBRAS NATURAIS: CARACTERIZAÇÃO EXPERIMENTAL
This thesis studies both the short-term and long- term behaviour of sisal and coconut fibre reinforced mortar composites.The experimental work involved extensive laboratory testing to determine the physical and mechanical properties of the fibre reinforcement and to study the influence of fibre type, volume fraction, fibre length, fibre arrangement and matri
Publicado em: 1997
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21. Dinamica e reatividade de superficie de poli (dimetilsiloxano)s
Crosslinked polydimethylsiloxane (PDMS) heated at temperatures between 200 and 280°C for short periods (one-half to two hours), reveals a partially thermoplastic behavior. Earlier studies on silicone describe the phenomena occurring under heating as due to chemical reactions leading to the formation of oligomers and oxidation products, which cause degradati
Publicado em: 1994
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22. Espectroscopia de luminescencia resolvida no tempo : implementação da tecnica e aplicações
Initially, the optimization of the SR250 Boxcar integrator and averager s parameters for excited-state lifetime measurements was performed. A quantitative theoretical model which takes into account the linear RC time constant distortions on the excited-state lifetime (t) decay waveforms was proposed. The computer simulations using a mathematical expression,
Publicado em: 1992
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23. Migration rules: tumours are conglomerates of self-metastases
Tumours are heterogeneous populations composed of different cells types: stem cells with the capacity for self-renewal and more differentiated cells lacking such ability. The overall growth behaviour of a developing neoplasm is determined largely by the combined kinetic interactions of these cells. By tracking the fate of individual cancer cells using agent-
Nature Publishing Group.
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24. Comparative Effects of Pollen and Seed Migration on the Cytonuclear Structure of Plant Populations. I. Maternal Cytoplasmic Inheritance
We explicitly solve and analyze a series of deterministic continent-island models to delimit the effects of pollen and seed migration on cytonuclear frequencies and disequilibria in random-mating, mixed-mating and self-fertilized populations. Given the critical assumption of maternal cytoplasmic inheritance, five major findings are (i) nonzero cytonuclear di