Ciências e Tecnologia | Capítulos/artigos em livros internacionais / Book chapters/papers in international books
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- Texture for neuroimagingPublication . Nunes, Ana; Serranho, Pedro; Castelo-Branco, Miguel; Bernardes, RuiTexture analysis is an umbrella term for multiple image analysis techniques that quantify and characterize the distribution of the image’s gray levels. It has a natural application in biomedical image analysis, where texture-based techniques are increasingly being incorporated into neuroimaging research. In this chapter, the role of texture analysis in the field of neuroimaging is addressed. Neuroimaging applications of texture-based approaches are contextualized within past and recent developments in image texture analysis, the categories of texture analysis methods, and the typical texture-based problem types, namely, classification and segmentation. Neuroimaging applications using magnetic resonance imaging, positron emission tomography, and optical coherence tomography are individually reviewed, and some considerations on the future perspectives for texture-based approaches in neuroimaging are made.
- Sustainability of fisheriesPublication . Pierce, Graham; Pita, Cristina; Santos, M. Begona; Seixas, SóniaThis chapter reviews the concept of sustainability in fisheries, focussing on fisheries in Europe and paying particular attention to the human dimensions of fisheries. The particular problems presented by fisheries (related to the “Tragedy of the Com- mons”) are introduced, followed by brief accounts of the importance of fisheries worldwide and of their history in Europe. We attempt to summarize the concepts embodied in fisheries management and governance and review the different dimensions (pillars) of sustainability in the context of fisheries: environmental, economic, social and institutional. We describe some current developments in management and governance of European fisheries, including the introduction of property rights, the role of ecological labelling and the concept of demand-led management, participation and co-management, marine protected areas and Integrated Marine Management. We advocate a system of governance under which more attention is placed on achieving the possible than in quantifying the unachievable, a system which delivers successful implementation of sustainabil- ity objectives based on holistic (and multidisciplinary) assessments of environ- mental, economic and social-cultural consequences of proposed actions and which is based on the full and active participation of all relevant stakeholders
- The future of cephalopod populations, fisheries, culture, and research in EuropePublication . Pierce, Graham; Belcari, Paola; Bustamante, Paco; Challier, Laurence; Cherel, Yves; González, Ángel; Guerra, Ángel; Jereb, Patrizia; Koueta, Noussithé; Lefkaditou, Eugenia; Moreno, Ana; Pereira, João; Piatkowski, Uwe; Pita, Cristina; Robin, Jean‐Paul; Roel, Beatriz; Santos, M. Begoña; Santurtun, Marina; Seixas, Sónia; Shaw, Paul; Smith, Jennifer; Stowasser, Gabrielle; Valavanis, Vasilis; Villanueva, Roger; Wang, Jianjun; Wangvoralak, Sansanee; Weis, Manuela; Zumholz, Karsten
- Aquarium as a tool for teaching sciences at all grades levelsPublication . Seixas, Sónia; Martinho, Marco
- Sepia orbignyana Férussac in d’Orbigny, 1826Publication . Jereb, Patrizia; Sobrino, Ignacio; Allcock, Louise; Seixas, Sónia; Lefkaditou, Evgenia
- Eledone moschata (Lamarck, 1798)Publication . Sobrino, Ignacio; Moreno, Ana; Jereb, Patrizia; Balguerias, Eduardo; Seixas, Sónia; Pierce, Graham; Lefkaditou, Evgenia; Allcock, Louise
- Work done in kindergartens by our students orientated by distance learningPublication . Seixas, Sónia
- Black trail in blue oceansPublication . Carapeto, CristinaTourism, as an industry, has been increasing in recent years. The cruise industry might be the best example. Huge ships cross the oceans, offering luxury and amenities to thousands of people. They are real floating cities with short stops at several places where tourists disembark and invade historical areas and fragile ecosystems, taking great pleasure from the contact with different cultures and exotic environments. The cost of this growing industry that is available to only a few is paid by us all with the decrease in the quality of the air and the damage that is inflicted on the oceans. It is therefore urgent to know the true environmental cost of this type of tourism and reflect on choices. It is possible to have both (cruises and environmental quality) as long as regulations are implemented and people moderate their behaviour.
- Marketing mix and new product diffusion modelsPublication . Pinto, Luís G.; Cavique, Luís; Santos, Jorge M. A.In this paper we analyze the relationship between the marketing mix and new product diffusion models. The goal is to obtain a general new product diffusion model that incorporates the classic 4Ps model of the Marketing Mix: Product, Price, Place, Promotion. An empirical study was conducted using mobile broadband adoption data in Japan.
- Bringing underused learning objects to the light: a multi-agent based approachPublication . Behr, André; Cscalho, José; Mendes, Armando B.; Guerra, Hélia; Cavique, Luís; Trigo, Paulo; Coelho, Helder; Vicari, RosaThe digital learning transformation brings the extension of the traditional libraries to online repositories. Learning object repositories are employed to deliver several functionalities related to the learning object’s lifecycle. However, these educational resources usually are not described effectively, lacking, for example, educational metadata and learning goals. Then, metadata incompleteness limits the quality of the services, such as search and recommendation, resulting in educational objects that do not have a proper role in teaching/learning environments. This work proposes to bring an active role to all educational resources, acting on the analysis generated from the usage statistics. To achieve this goal, we created a multi-agent architecture that complements the common repository’s functionalities to improve learning and teaching experiences. We intend to use this architecture on a repository focused on ocean literacy learning objects. This paper presents some steps toward this goal by enhancing, when needed, the repository to adapt itself.