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| Registros recuperados: 43 | |
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| PANISSET,JESSICA; DACAMARA,CARLOS C.; LIBONATI,RENATA; PERES,LEONARDO F.; CALADO,TERESA J.; BARROS,ANA. |
| ABSTRACT An automated procedure is here presented that allows identifying and dating burned areas in Portugal using values of daily reflectance from near-infrared and middle-infrared bands, as obtained from the MODIS instrument. The algorithm detects persistent changes in monthly composites of the so-called (V,W) Burn-Sensitive Index and the day of maximum change in daily time series of W is in turn identified as the day of the burning event. The procedure is tested for 2005, the second worst fire season ever recorded in Portugal. Comparison between the obtained burned area map and the reference derived from Landsat imagery resulted in a Proportion Correct of 95.6%. Despite being applied only to the months of August and September, the algorithm is able to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Burned area; MODIS; Portugal; Remote sensing. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000401487 |
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| Oliveira,M.; Guerra,M.; Bernardo,F.. |
| Avaliou-se a qualidade microbiológica da silagem produzida em Portugal e otimizaram-se alguns aspectos relacionados com a eficácia de detecção de Listeria monocytogenes mediante protocolo baseado na técnica de hibridação in situ fluorescente (FISH) para detecção directa desse microrganismo em amostras de silagens. O protocolo foi aplicado a 74 amostras, em simultâneo com o método bacteriológico convencional. Este último permitiu a detecção de L. monocytogenes em 11 silos (15%). Por meio do protocolo FISH, observou-se que 22 silos (29,7%) se encontravam contaminados. O método FISH apresentou precisão (77,0%), especificidade (92,5%) e sensibilidade (72,7%) elevadas, sendo adequado para a análise microbiológica presuntiva de silagens, uma vez que é um método... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Silage; Listeriosis; Fluorescent in situ hybridization; Listeria monocytogenes; Portugal. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352008000100038 |
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| Antonini,Yasmine; Lobato,Debora Nogueira Campos; Norte,Ana Cláudia; Ramos,Jaime A.; Moreira,Patrícia de Abreu; Braga,Erika Martins. |
| Abstract: According to the enemy release hypothesis (ERH) the spread of invasive species will be facilitated by release from their enemies as they occupy new areas. However, the ERH has rarely been tested by comparing populations of native (non-invasive, long established) species with expanding or shifting ranges, to the same species as invasive in another area. We tested the ERH with respect to blood parasite levels (prevalence and intensity of Plasmodium spp. and Haemoproteus spp.) of (a) two closely related, widely distributed species of thrush (Turdus leucomelas and T. merula), and (b) an invasive sparrow (Passer domesticus) whose range has expanded from the Old World to the New World since the 18th century. A total of 158 birds were sampled in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Portugal; Brazil; Turdus; House sparrow; Invasive bird; Range expansion. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032019000400204 |
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| Cabral,Ana C.; Moura-Ramos,Mariana; Castel-Branco,Margarida; Caramona,Margarida; Fernandez-Llimos,Fernando; Figueiredo,Isabel V.. |
| ABSTRACT We aim to validate a European-Portuguese version of the Hypertension Knowledge Test (HKT) questionnaire and examine its factorial structure with a confirmatory factor analysis (CFA). A process of translation and back-translation was performed. A cross-sectional study was developed in which all adult patients taking at least one antihypertensive drug were invited to participate. Data on personal and family history were collected, and the HKT, Strelec, and the Batalla questionnaires were administered. We enrolled 304 patients with a mean age of 68.12±10.83 years. The mean score of HKT was 15.33±2.79. CFA indicated that the construct being tested was unidimensional, and Cronbach’s alpha (α=0.65) showed that the instrument had an acceptable internal... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Health Knowledge/attitudes/practice; Hypertension/prevention and control; Psychometrics; Surveys and questionnaires/standards; Portugal. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502017000400608 |
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| Clemente, Adelaide; Environmental Biology Centre, Faculty of Sciences, University of Lisbon; maclemente@fc.ul.pt; Nielsen, Kurt Aagaard; Department of Environmental, Social and Spatial Change, University of Roskilde; aagaard@ruc.dk; Branquinho, Cristina; Environmental Biology Centre, Faculty of Sciences, University of Lisbon; cmbranquinho@fc.ul.pt. |
| The social and ecological systems of Mediterranean streams are intrinsically linked as a result of long human occupation. In this region, these links vary greatly across small distances due to geomorphology, resulting in great diversity across space, which poses particular challenges for understanding and managing these systems. This demands (i) interdisciplinary integration of knowledge that focuses on the social–ecological interactions, while according due consideration to the whole; and also (ii) transdisciplinary integration, integrating lay and expert knowledge to understand local specificities. To address these needs—a focus on interactions and local knowledge—the research presented here studies the... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Co-evolution; Ecological indicators; Interdisciplinary; Local knowledge; Natural resource management; Portugal; Social– Ecological systems; Transdisciplinary. |
| Ano: 2009 |
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| Alves, Filipe M; Center for Ecology, Evolution and Environmental Changes (CE3C), University of Lisbon; fmalves@fc.ul.pt; Truninger, Monica; Institute of Social Sciences, University of Lisbon; monica.truninger@ics.ulisboa.pt; Penha-Lopes, Gil; Center for Ecology, Evolution and Environmental Changes (CE3C), University of Lisbon; gppenha-lopes@fc.ul.pt. |
| Climate change may be a game-changer for scientific research by promoting a science that is grounded in linking the production of knowledge and societal action in a transition toward more sustainable development pathways. Here, we discuss participatory action-research (PAR) as a way of thinking and leading investigations that may promote incremental and transformative changes in the context of climate change adaptation research. Our exploration is addressed in the Portuguese context, where PAR and sustainable transition studies are still marginal, and adaptation processes are a recent topic on political agendas. We describe the characteristics of PAR and use two studies of adaptation to illustrate how research and practice co-evolve through interactive... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Adaptation; Participatory action-research; Portugal; Transitions. |
| Ano: 2016 |
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| Almaca, Carlos. |
| Coming from Oriental Asia and Siberia, the Cyprinidae reached the Iberic Peninsula probably at the end of the Oligocene. Their populations bore speciation processes which led to the formation of a fauna rich in endemic species and subspecies. Populations of two of the genera Barbus and Pseudophoxinus reached Northwestern African forming there several endemic species. Concerning the speciation forms, it is probable that the allopatric form, whether by foundation effect or by subdivision, played an important part. Pyrenees and Mediterranean Sea settled probably efficient barriers for the Iberic Cyprinidae isolation. The present geographical repartition of Cyprinidae in Iberic Peninsula suggests that altitude lines and glaciations which reached the north of... |
| Tipo: Text |
Palavras-chave: Portugal; Spain; Cyprinidae; Biogeography; Speciation. |
| Ano: 1976 |
URL: http://archimer.ifremer.fr/doc/1976/publication-1997.pdf |
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| Abrantes, F; Moita, Mt. |
| Diatom and coccolithophorid abundance and diatom assemblage composition found in the water column along the Portuguese margin, during upwelling and non-upwelling conditions, are compared to the distribution patterns observed in the recent sediments from the same area. The water column results indicate a one order of magnitude increase in phytoplankton biomass during upwelling conditions (summer), with diatoms being the most important contributors. Coccolithophorids, on the contrary, dominate the phytoplankton in winter (non-upwelling), The comparison of the upwelling and non-upwelling spatial distribution of these phytoplankton groups to their sedimentary record reveals the sediment record as a reflection of the upwelling situation, preserving most of its... |
| Tipo: Text |
Palavras-chave: Upwelling; Portugal; Diatomée; Colonne d'eau; Sédiment; Upwelling; Portugal; Diatom; Water column; Sediment. |
| Ano: 1999 |
URL: http://archimer.ifremer.fr/doc/00325/43630/43253.pdf |
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| Paillard, Michel; Prevosto, Marc; Barstow, Sf; Soares, Cg. |
| The MAST II WAVEMOD Project aimed at improving stochastic modelling of ocean waves and currents in coastal waters. In order to supplement existing data, two measurement campaigns were carried our, one on the Atlantic coast of Portugal, and, secondly, on the northern coast of Crete in the Mediterranean. The Portuguese measurements covered 7 months during winter 1993-1994, while off Crete, measurements started early in February 1994 and continued for 10 months, In both sites, two directional Waveriders and one non-directional Waverider were deployed along a transect our from the coast in water depths between 10 and 100 m. In addition, the Mediterranean site also incorporated measurements of mean current velocities. Available satellite data were analysed to... |
| Tipo: Text |
Palavras-chave: Waves; Currents; Portugal; Greece. |
| Ano: 2000 |
URL: https://archimer.ifremer.fr/doc/00000/10506/66722.pdf |
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| Dao, Jean-claude; Lacroix, Denis; Veron, Gerard. |
| L'Espagne et le Portugal sont de gros consommateurs de produits de la mer avec 42 et 60 kg par habitant et par an, respectivement. Ces deux pays accueillent également un important flux de tourisme, principalement sur les régions côtières. Enfin, comme le reste des pays européens, l'Espagne et le Portugal sont confrontés à une stagnation des apports de la pêche malgré l'accroissement de l'effort, y compris dans les petits fonds (moins de 50 m), normalement interdits de chalutage. C'est dans ce contexte que l'Espagne et le Portugal ont engagé depuis une douzaine d'années des programmes d'immersion de récifs à une échelle importante: - 87 projets réalisés, plus une dizaine en cours de mise en oeuvre - environ 973 km2 de zones protégées du chalutage illégal -... |
| Tipo: Text |
Palavras-chave: Récif artificiel; Repeuplement; Espagne; Portugal. |
| Ano: 1999 |
URL: http://archimer.ifremer.fr/doc/00142/25302/23374.pdf |
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| Registros recuperados: 43 | |
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