Mostrando recursos 1 - 20 de 96

  1. Prediction of storm impacts on beach and dune systems

    Ciavola, Paolo; Ferreira, Óscar; Dongeren, Ap Van; Vries, Jaap Van Thiel de; Armaroli, Clara; Harley, Mitchell
    This chapter provides an overview of the current knowledge of storm impacts on low-lying coastlines, including beaches and dunes. It first outlines the complexity of identifying a storm event in an objective manner. The impact of storms on dune ridges is then discussed, making a comparison between research recently carried out in both the USA and Europe. The main impacts of storm events are also reviewed, taking into account the development of overwash processes and breaching of the dune system as well as flooding of the hinterland. The chapter also provides a detailed overview of qualitative and quantitative models of...

  2. Prediction of storm impacts on beach and dune systems

    Ciavola, Paolo; Ferreira, Óscar; Dongeren, Ap Van; Vries, Jaap Van Thiel de; Armaroli, Clara; Harley, Mitchell
    This chapter provides an overview of the current knowledge of storm impacts on low-lying coastlines, including beaches and dunes. It first outlines the complexity of identifying a storm event in an objective manner. The impact of storms on dune ridges is then discussed, making a comparison between research recently carried out in both the USA and Europe. The main impacts of storm events are also reviewed, taking into account the development of overwash processes and breaching of the dune system as well as flooding of the hinterland. The chapter also provides a detailed overview of qualitative and quantitative models of...

  3. Chemical stressors in the Guadiana River

    Bebianno, Maria João; Gonzalez-Rey, Maria; Veiga-Pires, C.
    The Guadiana River,the fourth major river of the Iberian Peninsula,represents an important aquatic system from a socio,geo and ecological point of view for Portugal and Spain. Important economic activities such as agriculture,tourism and aquaculture are present along with several economic facilities such as harbour (commercial and fishing),marina and small shipyards for construction and repair of small vessels.All these activities generate wastes some of them toxic to the aquatic environment.

  4. Chemical stressors in the Guadiana River

    Bebianno, Maria João; Gonzalez-Rey, Maria; Veiga-Pires, C.
    The Guadiana River,the fourth major river of the Iberian Peninsula,represents an important aquatic system from a socio,geo and ecological point of view for Portugal and Spain. Important economic activities such as agriculture,tourism and aquaculture are present along with several economic facilities such as harbour (commercial and fishing),marina and small shipyards for construction and repair of small vessels.All these activities generate wastes some of them toxic to the aquatic environment.

  5. Effects of spoilage on nitrogen and carbon stable isotopes signatures of the clam Ruditapes decussatus

    Aníbal, J.; Veiga-Pires, C.; Esteves, E.
    Fish and seafood products are highly susceptible to post-mortem spoilage due to autolytic reactions at start, then microbiological activity and eventually oxidative reactions. Chemical and microbiological parameters are usually used to assess quality and make decisions for protecting public health, but they lack precision in defining which spoilage pathway is occurring at each moment. The objective of this work was to assess the effects of spoilage reactions on nitrogen and carbon stable isotopes in the grooved carpet shell clam, Ruditapes decussatus, and compare them to biochemical indicators of seafood deterioration, in order to better understand the relations between the different spoilage pathways during commercial storage conditions. Clams were kept...

  6. Effects of spoilage on nitrogen and carbon stable isotopes signatures of the clam Ruditapes decussatus

    Aníbal, J.; Veiga-Pires, C.; Esteves, E.
    Fish and seafood products are highly susceptible to post-mortem spoilage due to autolytic reactions at start, then microbiological activity and eventually oxidative reactions. Chemical and microbiological parameters are usually used to assess quality and make decisions for protecting public health, but they lack precision in defining which spoilage pathway is occurring at each moment. The objective of this work was to assess the effects of spoilage reactions on nitrogen and carbon stable isotopes in the grooved carpet shell clam, Ruditapes decussatus, and compare them to biochemical indicators of seafood deterioration, in order to better understand the relations between the different spoilage pathways during commercial storage conditions. Clams were kept...

  7. Plano, circunstância e projeto: a arquitetura da Pousada de São Brás de Alportel

    Ribeiro, Vítor; Costa, Miguel Reimão
    Lançadas oficialmente em 1938 no âmbito do plano de comemorações do Duplo Centenário da Fundação e Restauração de Portugal de 1940, as pousadas irão rapidamente assumir papel preponderante. Numa primeira fase, na inculcação de uma determinada ideia a que se pretendia vincular a imagem turística do país e na disseminação da estética que lhe é associada; numa fase subsequente, na reabilitação de edifícios com valor patrimonial; em qualquer dos casos, e de uma forma geral, na promoção turística das localidades e regiões abrangidas.

  8. Produtos agrícolas transformados

    Duarte, Amílcar; Freitas, Maria de Belém Costa
    Em rigor, atualmente quase todos os produtos agrícolas sofrem algum tratamento antes de serem vendidos (lavagens, calibração, etc.); adicionalmente, e talvez mais importante, as indústrias genericamente conhecidas como indústrias agroalimentares, transformam matérias-primas agrícolas, tendo como produto final um bem alimentar, utilizado diretamente na alimentação humana, tendo como produto final um produto não destinado à alimentação humana (por exemplo, tabaco), ou ainda tendo como produto final um produto que apenas indiretamente se relaciona com a alimentação humana (por exemplo, rações). Finalmente, as matérias-primas agrícolas são ainda transformadas noutras indústrias, para diferentes fins (por exemplo, na indústria química). De acordo com Varela (1987)...

  9. Prospecção e defesa da paisagem urbana do Algarve (1965-70): a arquitetura tradicional e a preservação do património urbano na proposta da DGSU

    Ribeiro, Vítor; Costa, Miguel Reimão; Aguiar, José; Valverde, Isabel
    No contexto da sucessiva redefinição do conceito de património, a arquitetura vernácula tenderá a assumir a sua importância a partir da segunda metade do século passado, alcançando estatuto próprio na Carta sobre o Património Construído Vernáculo de 1999. Em Portugal, adquirem particular relevância os trabalhos desenvolvidos em diferentes âmbitos, desde a antropologia à arquitetura, passando pela agronomia e pela geografia, que culminariam em diferentes sínteses sobre o tema, alargadas a todo o território nacional continental. Essa abordagem só no final dos anos 60 viria a ser ensaiada, à escala da região do Algarve, no pioneiro trabalho desenvolvido pela equipa dirigida pelo Arq.º Cabeça Padrão, no âmbito da Secção de Defesa e Recuperação da Paisagem...

  10. Livro de resumos do IV colóquio nacional de horticultura biológica


    A agricultura biológica tem futuro e o futuro é hoje! É o mote do IV Colóquio Nacional de Horticultura Biológica, que decorre de 17 a 19 de março, no Anfiteatro Verde da Universidade do Algarve, em Faro. Uma iniciativa da Associação Portuguesa de Horticultura (APH) em parceria com a Universidade do Algarve e a Direção Regional de Agricultura e Pescas do Algarve. O IV Colóquio Nacional de Horticultura Biológica pretende ser um espaço de troca de conhecimento, de experiências e de debate que contribua para demonstrar o potencial produtivo, económico e ambiental da agricultura biológica (AB). Este modo de produção...

  11. Livro de resumos do IV colóquio nacional de horticultura biológica


    A agricultura biológica tem futuro e o futuro é hoje! É o mote do IV Colóquio Nacional de Horticultura Biológica, que decorre de 17 a 19 de março, no Anfiteatro Verde da Universidade do Algarve, em Faro. Uma iniciativa da Associação Portuguesa de Horticultura (APH) em parceria com a Universidade do Algarve e a Direção Regional de Agricultura e Pescas do Algarve. O IV Colóquio Nacional de Horticultura Biológica pretende ser um espaço de troca de conhecimento, de experiências e de debate que contribua para demonstrar o potencial produtivo, económico e ambiental da agricultura biológica (AB). Este modo de produção...

  12. Bioactive compounds of citrus as health promoters

    Duarte, Amílcar; Carvalho, Catarina; Miguel, Maria Graça
    Citrus are a group of fruit species, quite heterogeneous in many aspects, including chemical composition of the fruit. Since ancient times, some citrus fruits were used to prevent and cure human diseases. In the recent decades, it has been demonstrated that fruits can actually help prevent and cure some diseases and above all, they are essential in a balanced diet. Citrus fruits, as one of the groups of fruit species, with greater importance in the world, have been studied for their effects on human health. Some species of citrus were referred as potential antioxidant based therapy for heart disease, cancer...

  13. O perfil do designer e o papel do design nas empresas em Portugal

    Agapito, Dora; Almeida, Helena; Almeida, Marisa; Fernandes, Sílvia; Lacerda, António
    CIEO - Centro de Investigação para o Espaço e as Organizações, Universidade do Algarve; FCT - Fundação para a Ciência e Tecnologia

  14. The Holocene history of the Guadiana estuary as told by diatoms and chrysophyte cysts

    Gomes, A.; Boski, T.; Moura, Delminda; Szkornik, Katie; Connor, Simon; Witkowski, Andrzej
    In order to tell the history of the Guadiana Estuary since the Last Glacial Maximum, a core collected therein, and spanning more than 13200 cal. years B.P., was studied regarding its diatom and chrysophyte cyst fossil records. Additionally, a diatom-based transfer function was used to reconstruct paleo-salinity and paleo-duration of tidal inundation to better understand the estuary’s evolution in relation to sea-level rise and climate changes. This study identifies some important climatic events, such as the Allerød climatic optimum, the Younger Dryas and three dry and cold events at 10600, 9100 and 7600 cal. years B.P., most of which were...

  15. Digital modeling of the impact of the 1755 Lisbon earthquake

    Bostenaru, Maria; Panagopoulos, Thomas
    Toys have played a role in the development of 3D skills for architects. As a continuation of this, games, a subgenre of which are city building games, the father of all is SimCity, a variant of construction management games, underlay a socio-economic model. Outgoing from a general view of the role of toys and games in building the skills of architects, we focus on the modelling of the impact of earthquakes on urban areas. The particular case considered is Lisbon 1755, set into the context of related developments such as l'Aquila 2009 and Bucharest 1977. We examined the 3D modelling of the city, which can be the base...

  16. New models for innovative management and urban dynamics


    At a time of rapid economic change where the capacity of European cities to control their development towards a globally more sustainable development is at stake, it seems of utmost importance to identify the regimes, policies and tools that best suit land management strategies for urban dynamics within a general context characterized by globalization, fierce economic competitiveness, territorial competition and the strong need to conceive urban planning actions under the auspice of, for example, public-private partnerships or other innovative cooperative forms. Previous studies in urban development show the decisive importance of the public actor’s ability to mobilize the required land resources for the success...

  17. As moradas de casas do núcleo intramuros de Mértola: uma leitura preliminar da arquitetura doméstica entre o final do antigo regime e o início do século XX

    Costa, Miguel Reimão
    Com­ o ­presente­ artigo ­pretende-se caracterizar ­alguns dos­ temas ­que ­marcam a­ diversidade ­e transformação­ da arquitetura ­doméstica ­do ­núcleo ­intramuros de ­Mértola ­entre o ­fim ­do­ Antigo­ Regime ­e­ o­ primeiro quartel­ do ­século ­passado. ­Este propósito enquadra-se ­no ­projeto ­“Arquitetura tradicional­ da­ vila ­e­ do­ termo­ de Mértola",­através­ do ­qual­ se estende ­à­ arquitetura ­da ­habitação ­e­ ao património ­urbano­ a investigação­ que­ o­ Campo ­Arqueológico­ de­ Mértola­ tem desenvolvido,­em ­diversas ­parcerias,­ao longo­ de ­mais ­de trinta­ anos (Goméz­ Martínez,­2014).­É­ neste quadro­ que ­se pretende­ conferir ­ao ­presente ­estudo uma dimensão­ metodológica­ integradora compreendendo­ o ­recurso ­a­ diferentes instrumentos,­desde ­a­...

  18. Use of Essential Oils and Their Components against Multidrug-Resistant Bacteria

    Faleiro, Leonor; Miguel, Maria Graça
    Aromatic and medicinal plants, through their secondary metabolism, provide a complex mixture of volatile molecules known as essential oils. These volatile molecules exert antibacterial activity that has been used in folk medicine for centuries. During the last few decades, the emergence of antibacterial resistance has forced us to search for new and efficient antimicrobial agents. The significant number of studies on the use of essential oils and their components against multidrug-resistant bacteria, such as Acinetobacter baumannii, methicillin-resistant Staphylococcus aureus, Mycobacterium tuberculosis, and Pseudomonas aeruginosa show the exceptional potential of these natural products to curb the development of antibacterial resistance. Moreover,...

  19. Proceedings of the 12th International Conference on Technology in Mathematics Teaching ICTMT 12


  20. D. Pedro Sanches e a lenda dos cinco mártires de Marrocos

    Dias, Isabel Rosa
    D. Pedro Sanches e a lenda dos cinco mártires de Marrocos.

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