Last decades of the 20th century have shown many problems arisen from the emergence of commons mismanagement and under-defined property rights. In the 80s, Michelman introduced the problem of excessive fragmentation of property rights. A new concept, “anticommons”, was developed to put in evidence some problems seen as the mirror image of traditional “tragedy of the commons”. These problems include the under-us...
O Plano de Desenvolvimento Integrado do Município de Vila Velha de Ródão foi elaborado com o intuito de servir de suporte ao planeamento de acções de intervenção no território, conforme as indicações da Portaria n.º 1037/2009 de 11 de Setembro. Em territórios com as características biofísicas e socioeconómicas como as do Concelho em apreço, as orientações aceites para desenvolvimento e promoção da competitivida...
Free radical scavenging activity and the content of ascorbic acid and glutathione were investigated during long-term storage of the pear (Pyrus communis L. ‘Rocha’) fruit harvested at different maturity stages, stored in air or under controlled atmosphere and subjected to postharvest treatments with diphenylamine (DPA) and 1-methylcyclopropene (1-MCP). Harvest maturity had a significant effect on storage disord...
Objetivou-se, neste trabalho, determinar, dentre as técnicas nele utilizadas, a mais adequada para a definição da taxa de infiltração visando ao dimensionamento de sistemas de irrigação por aspersão. Obtiveram-se os dados de infiltração de água no solo segundo uma malha com espaçamentos variáveis entre pontos de ensaios de infiltração de 1,5; 3; 6; 12; 24; 48 e 96 m, totalizando 97 pontos de ensaio. As discussõ...
This work introduces a strategy for the optimal design of distillation systems based on continuous optimization. The approach is similar to the one proposed earlier by [Lang, Y. -D., & Biegler, L. T. (2002). A distributed stream method for tray optimization. AIChE Journal, 48, 582], avoiding the need of solving extremely large and non-linear discrete optimization problems. When used with complex distillation un...
Sarcoidosis is a granulomatous disease of unknown etiology that can affect all organs and systems, including the central nervous system in approximately 5% of patients. Although the hypothalamo-hypophyseal system may be one of the areas affected by neurosarcoidosis, pseudotumoral lesions are very rare. This paper reports the case of a 42-year-old male Caucasian patient followed by the Pneumology and Dermatology...
Análise da relação entre preços de bacalhau na cadeia de valor Portugal-Noruega, utilizando técnicas de co-integração e de dinâmica de sistemas aplicadas a sistemas de dados de sucessões cronológicas.
A pesca e consumo do bacalhau em Portugal: enquadramento histórico,apogeu e declínio da pescaria, importações, exportações e factores de competitividade.
Evaluation of the impact of the potencial danger of exhaustion of the Portuguese coast on the Portuguese canned sardine industry. The application of an integrated system dynamics model of supply and demand of sardine and of the production of canned sardine and the analysis of the different outcome scenarios.
An overview of the Portuguese Fish Producers' Organisations and the presentation of the main results of a survey answered by their members. The logic of the "Mutual Coercion" agreeded upon the Producers' Organisations members.
Financiadores do RCAAP | |||||||
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |