Multidimensional Modelling
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. Contextual analysis of users interactions in collaborative learning environments
Interactions in CSCLE (Computer-Supported Collaborative Learning Environments) are one of the most important visible aspects of collaboration. The analysis of these interactions can provide support for the students reflection and self-regulation processes and for the teachers activities. But to perform the analysis process, it is important to discover and re
Publicado em: 2007
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2. Modelagem de séries temporais financeiras multidimensionais via processos estocásticos e cópulas de Lévy / Multidimensional Financial Time Series Modelling via Lévy Stochastic Processes and Copulas
O principal objetivo deste estudo é descrever modelos para séries temporais de ativos financeiros que sejam robustos às tradicionais hipóteses: distribuição gaussiana e continuidade. O primeiro capítulo está preocupado em apresentar, de uma maneira geral, os conceitos matemáticos mais importantes relacionadas a processos estocásticos e difusões. O
Publicado em: 2005
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3. Multidimensional modelling and calculation of combustion in porous media
In contrast with household heating systems based on open combustion flames, burners based on premixed combustion in inert porous media are characterized by higher thermal efficiency and high turndown ratio allied with compacity of the units. Moreover, porous burners, where a flame is anchored inside a porous matrix, are associated with low pollutants formati
Publicado em: 2005
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4. Aplicações de técnicas de RMN à determinação estrutural de intermediários sintéticos. / Applications of NMR techniques in structural determination of synthetic intermediate.
The well known W rule, which establishes that nuclei in a planar W arrangement exhibit significant four bond coupling constants, has been a useful tool in molecular structure determination since early times of the use of nmr spectra for this purpose. Many configurations and conformations have been decided based on this rule. The continuous evolution of the n
Publicado em: 2000
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5. Eating disorders and the serotonin connection: state, trait and developmental effects
Alterations in brain serotonin (5-hydroxytryptamine [5-HT]) function are thought to contribute to diverse aspects of eating disorders, including binge eating, perfectionism, impulsivity and mood-regulation problems. In addition, 5-HT anomalies in individuals with eating disorders are believed to have multiple determinants associated with secondary (state-rel