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European Music After 1945 as a Restricted Space of Enunciation

In this article, starting from the contributions of Pierre-Michel Menger and some sociological concepts of Boaventura de Sousa Santos and other postcolonial authors, the author proposes an analysis of the new musical structures created after 1945 in the new music field in Europe as a construction regulated and dominated by the core countries, critically seen from the vantage point of observation of a peripheral...

Transmissão de Sinais Ópticos em Banda Lateral Única, com Igualação no Domínio ...

In this article is investigated an optical single sideband transmission system at 10 Gbit/s with electrical equalization, using the zero forcing criteria, to compensate the chromatic dispersion. The optical transmission of single sideband signals increases the transmission distances relative to the transmission in double sideband (DSB) form.Simulation results also showed that using this...

Conflitos em empreitadas de construção : causas, consequências e soluções

Tese de mestrado integrado. Engenharia Civil (especialização em Construções). Faculdade de Engenharia. Universidade do Porto. 2008

Comparação Internacional de Sistemas Tarifários do Setor Elétrico

Modeling lichen communities : ecological key factors in a changing environment

Tese de doutoramento, Biologia (Ecologia), Universidade de Lisboa, Faculdade de Ciências, 2010 ; O fenómeno das alterações globais influencia o funcionamento de muitos dos sistemas planetários. Embora os factores ambientais associados a esse fenómeno funcionem numa escala global, os seus efeitos nos ecossistemas têm de ser estudados localmente. Este estudo é complexo não só pela necessidade de obter informação...

Managing contention of software transactional memory in real-time systems

The foreseen evolution of chip architectures to higher number of, heterogeneous, cores, with non-uniform memory and non-coherent caches, brings renewed attention to the use of Software Transactional Memory (STM) as an alternative to lock-based synchronisation. However, STM relies on the possibility of aborting conflicting transactions to maintain data consistency, which impacts on the responsiveness and timing ...

Comparing approaches for drug-like molecules solubility calculations

Solubility has been recognized as one of the most important properties for designing separation and purification processes of complex molecules, such as active pharmaceutical ingredients. Experimental solubility data are usually needed for performing such design operations. However, frequently data are unavailable due to reduced amounts of sample, time limitations, or inherent complexities with experimental mea...

Solid-liquid equilibria of some natural phenolic compounds: experimental and mo...

Phenolic compounds are typically found in plants, usually as esters or glycosides [1]. Apart from being starting materials for many chemical synthesis, there is also huge evidence that some phenolic compounds have beneficial effects on human health. In this work, the aqueous solubilities of some phenolic compounds such as the hydroxybenzoic acids gallic, salicylic, protocatechuic and syringic acids, and the phe...

Solid-liquid equilibria of some pharmaceutical compounds

Solubility is an important property which affects the release, transport and absorption of drugs. Solubility data involving new drug molecules and their precursors are frequently unavailable hampering drug formulation. Although some thermodynamic models can be used, the existence of some experimental data is still fundamental for an appropriate model development and evaluation. In this work, solubilities of som...

Pure solvent solubility of some pharmaceutical molecules

During the search for novel or improved therapies, new drugs are proposed. Solubility of drug-candidates is important both for drug production and its therapeutic use. Many separation processes in the pharmaceutical industry are based on the solubilities in different solvents. Solvation plays an important role in the organism in each stage of drug transport and delivery. Properties like lipophilicity, hydrophil...