O Golfo da Guiné e a segurança energética dos EUA e da China

O objetivo deste estudo centra-se na análise e na comparação do contributo do petróleo do golfo da Guiné para a segurança energética dos EUA e da China no período 1990-2000, tendo presente a afirmação recente da região africana num quadro de escassez da matéria-prima. Foram elaborados três case studies visando caracterizar as potencialidades e riscos associados à região produtora e analisar o crescente envolvimento dos EUA e da China, através da implementação de políticas públicas conducentes à obtenção dos resultados visados e mediante o reforço da exposição da vertente empresarial. Os resultados obtidos traduziram-se no reforço do abastecimento dos EUA, mantendo uma posição ímpar perante o maior fornecedor regional, a Nigéria, enquanto a China assumiu posição de crescente relevância na região e sedimentou uma relação de grande preponderância face ao outro grande produtor, Angola. A existência de nexos de causalidade entre níveis de segurança energética e o recurso a instrumentos de políticas públicas é um domínio complexo, sendo de referir que o recurso ao economic statecraft pelos EUA, não afigura hipótese fundamentada enquanto fator explicativo das performances alcançadas por este país na região.

Semantic relations extraction from unstructured information for domain ontologies enrichment

Based in internet growth, through semantic web, together with communication speed improvement and fast development of storage device sizes, data and information volume rises considerably every day. Because of this, in the last few years there has been a growing interest in structures for formal representation with suitable characteristics, such as the possibility to organize data and information, as well as the reuse of its contents aimed for the generation of new knowledge. Controlled Vocabulary, specifically Ontologies, present themselves in the lead as one of such structures of representation with high potential. Not only allow for data representation, as well as the reuse of such data for knowledge extraction, coupled with its subsequent storage through not so complex formalisms. However, for the purpose of assuring that ontology knowledge is always up to date, they need maintenance. Ontology Learning is an area which studies the details of update and maintenance of ontologies. It is worth noting that relevant literature already presents first results on automatic maintenance of ontologies, but still in a very early stage. Human-based processes are still the current way to update and maintain an ontology, which turns this into a cumbersome task. The generation of new knowledge aimed for ontology growth can be done based in Data Mining techniques, which is an area that studies techniques for data processing, pattern discovery and knowledge extraction in IT systems. This work aims at proposing a novel semi-automatic method for knowledge extraction from unstructured data sources, using Data Mining techniques, namely through pattern discovery, focused in improving the precision of concept and its semantic relations present in an ontology. In order to verify the applicability of the proposed method, a proof of concept was developed, presenting its results, which were applied in building and construction sector.

A arte têxtil bordada na China: panorâmica de uma tradição milenar

Fundação para a Ciência e a Tecnologia (FCT), Fundação Millennium bcp, Imprensa Nacional-Casa da Moeda

O Elvis de Macau. Relatos de uma distopia na China

A explosão de Macau nos últimos dez anos deve-se a um conjunto de factores, que este texto procura descrever, propondo uma necessária reflexão. Depois da liberalização do jogo em 2001/2002, o Sands Macau inaugura, em 2004, como o primeiro casino da nova vaga. Em 2005, Macau é Património Mundial da Humanidade pela UNESCO. O Cotai é inicialmente um projecto da administração portuguesa como uma nova cidade para 150 000 habitantes. O Cotai Strip nasce de uma epifania de Sheldon Adelson, chairman da Las Vegas Sands Corporation, em 2003. Em 2007, o Venetian inaugura como “flagship” do Cotai Strip e, em 2011, o Galaxy amplia a dimensão delirante da arquitectura do jogo. No pós-Portugal, a condição de Macau como espaço híbrido, colonizado, transitório, aumenta exponencialmente enquanto “Região Administrativa Especial” da República Popular da China. Macau é hoje uma distopia suave, corporizada nos casinos; uma vida subterrânea que se expressa no skyline.

Analysis of factors and drivers in graduates success among Portugal, India and Italy

Field lab: Business project

Analysis of factors and drivers in graduates success among Portugal, India and Italy- extracurricular activities before university

Field lab: Business project

Context costs and comparative advantages in the telecommunications sector in Portugal and China

This Work Project aims to discuss the Context Costs and Comparative Advantages of the Telecommunications sector both in Portugal and China. The work was built mostly on primary research by interviews with relevant people (business persons, University Professors and Agencies directors), and by economic data publicly available. A list of context costs and comparative advantages was drawn for each country and possible resolutions suggestions were made in the end. The context costs depend heavily on the economic situation of the countries and it should be taken into account when assessing the degree of magnitude of each cost of context. The competitive advantages of each country were drawn in comparison with one another. Some key results stand out: firstly, Portugal’s costs of context depend mainly on governmental decisions, uncertainties and instability and China’s cost of context depend primarily on cultural norms, mainly the Guanxi; second, the telecommunications sector shares most of its context costs and advantages with other sectors; third, China as an economic power could use the telecommunications sector as a way to further develop and boost its economy.