34 resultados para preconditioning saddle point problems
Resumo:
Dissertação de mestrado em Engenharia de Sistemas
Resumo:
Over the past four decades the EU cohesion policy’s focus, objectives and content have experienced significant changes as a result of successive reforms aiming at adapting it to a Union in constant evolution. In the early stages, cohesion policy had eminently redistributive goals and it assumed an explicit spatial dimension. In the late nineties, the possibility of an extension towards Eastern European countries and the limited willingness of net contributors to increase funding led to a turning point in cohesion policy. The increased importance of economic growth and job creation in the 2000’s, within the cohesion policy’s context, has led to a misrepresentation of its essence and motivations. Cohesion was losing importance towards competitiveness and regional equity towards national efficiency. Today, cohesion policy is for many EU countries the main mean for mobilising investment in a context of budgetary constraints and credit rationing. In light of the available evidence, it is likely that the overall design and priorities of the current cohesion policy have a limited impact in terms of convergence in many EU regions, especially in the less developed regions. This paper’s main objectives are to analyse the evolution of European cohesion policy throughout its history, to present a picture of cohesion policy in the 2014-2020 programming period and to discuss the main problems associated with its design, priorities and programming model.
Resumo:
We survey results about exact cylindrically symmetric models of gravitational collapse in General Relativity. We focus on models which result from the matching of two spacetimes having collapsing interiors which develop trapped surfaces and vacuum exteriors containing gravitational waves. We collect some theorems from the literature which help to decide a priori about eventual spacetime matchings. We revise, in more detail, some toy models which include some of the main mathematical and physical issues that arise in this context, and compute the gravitational energy flux through the matching boundary of a particular collapsing region. Along the way, we point out several interesting open problems.
Resumo:
Dissertação de mestrado em Ciências – Formação Contínua de Professores (área de especialização em Biologia e Geologia)
Resumo:
Dissertação de mestrado integrado em Engenharia Mecânica
Resumo:
Dissertação de mestrado integrado em Engenharia Mecânica
Resumo:
Dissertação de mestrado em Engenharia de Sistemas
Resumo:
Tese de Doutoramento em Psicologia Clínica / Psicologia
Resumo:
Tese de Doutoramento em Ciências da Educação (área de especilização em Desenvolvimento Curricular).
Resumo:
Dissertação de mestrado integrado em Engenharia Civil
Resumo:
Dissertação de mestrado em Sociologia (área de especialização em Desenvolvimento e Políticas Sociais)
Resumo:
Dissertação de mestrado em Crime, Diferença e Desigualdade
Resumo:
Tese de Doutoramento em Filosofia - Especialidade de Filosofia da Mente
Resumo:
[Excerpt] Waste cooking oils (WCO) generated from vegetable oils used at high temperatures in food frying, cause environmental problems and must be reutilized. New strategies to valorize these wastes are attracting a great scientific interest due to the important advantages offered from an economic and environmental point of view. A microbial platform can be established to convert low-value hydrophobic substrates, such as waste cooking oils, to microbial lipids (single cell oil, SCO) and other value-added bioproducts, such as lipase. (...)
Resumo:
Dissertação de mestrado em Educação Especial (área de especialização em Dificuldades de Aprendizagem Específicas)