As nonlinear hyperbolic partial differential equations have non unique global solutions, I am concerned with two, related, issues: what about physical solutions? and when can we use such a type of equations?
Constantino Lagoa: In this talk, we discuss some preliminary results on a general approach to chance constrained algebraic problems. In this type of problems, one aims at maximizing the probability of a set defined by polynomial inequalities. This class of problems is quite general and includes many problems in control systems where the system of interest is subject to stochastic disturbances and/or random unce...
Hugo Silva: Eletricidade Atmosférica e os Aerossóis. ### Suzete Marques: Caraterização, riscos e danos dos fogos florestais em Portugal. ### Fernando Afonso: Pollen Modelling in Patients with Atopic Respiratory Symptoms in the Alentejo Region. ### Ana Maria Silva: Aerossóis e Clima: investigação do Grupo de Meteorologia e Clima do CGE. ### João Teixeira Pinto: Coagulation-Fragmentation Equations. ### Pedro Serr...
In this presentation we attempt to stress two points of view on hyperbolic conservation laws: modelization and analytical theory. And, how they are sensitively related. While appliers are concerned with reliability, integrity or failure of solutions, mathematicians are concerned with non uniqueness, selection of physically relevant solutions or entropy criteria. In the modeling process, within simplifications, ...
In this presentation we attempt to stress two points of view on hyperbolic conservation laws: modelization and analytical theory. And, how they are sensitively related. While appliers are concerned with reliability, integrity or failure of solutions, mathematcians are concerned with non uniqueness, selection of physically relevant solutions or entropy criteria. In the modeling process, within simplifications, s...
Abstrat publicado em: Chromosome Research. 2003;21(Suppl 1):S1–S168. doi:10.1007/s10577-013-9364-x
Trabalho apresentado à Universidade Fernando Pessoa como parte dos requisitos para obtenção de grau de Mestre em Arquitetura e Urbanismo ; A arquitetura é multidisciplinar, sendo o sentido da sua interpretação um exercício de relação entre várias sensibilidades. A pintura, o desenho, a filosofia, a antropologia, a sociologia, a ciência e muitas outras matérias, são o conjunto dessa multidisciplinaridade. Dentr...
Introdução: As gestações gemelares (GG) têm aumentado significativamente nos últimos anos, sendo este aumento atribuído a um efeito combinado de tratamentos de fertilidade e aumento da idade materna. As grávidas com GG têm um risco acrescido de anomalias cromossómicas fetais, comparativamente às de gestações simples. Objetivo: Avaliação dos resultados obtidos em estudos de Diagnóstico Pré-Natal (DPN) de Anomal...
Introduction Down syndrome (DS) is the most common single genetic cause of human moderate mental retardation, with an estimated prevalence of 9.2 cases per 10,000 live births. We aimed at analyzing changes in prenatal diagnosis (PND) over time, namely the referral reasons for chromosome analyses and the introduction of chorionic villus sampling (CVS), and its influence on the results obtained in DS cases. Meth...
Tese de doutoramento em Matemática (Análise Matemática), apresentada à Universidade de Lisboa através da Faculdade de Ciências, 2008 ; In a first part, we study the zero diffusion-dispersion limit for a class of nonlinear hyperbolic and multi-dimensional conservation laws regularized in a fashion similar to to the Benjamin-Bona-Mahony-Burgers (BBMB) and Korteweg-deVries-Burgers (KdVB) equations. We establish t...
Financiadores do RCAAP | |||||||
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |