Encontrados 31 documentos, a visualizar página 1 de 4
A bacteriophage detection tool for viability assessment of Salmonella cells
Fernandes, E.; Martins, V. C.; Nóbrega, Cláudia; Carvalho, Carla A. O. C. M.; Cardoso, F. A.; Cardoso, S.; Dias, J.; Deng, D.; Kluskens, LeonAvailable online 7 September 2013 ; Salmonellosis, one of the most common food and water-borne diseases, has a major global health and economic impact. Salmonella cells present high infection rates, persistence over inauspicious conditions and the potential to preserve virulence in dormant states when cells are viable but non-culturable (VBNC). These facts are challenging for current detection methods. Culture...
Sedimentary climatic record in the Galician Internal Basin: sediment provenance...
Plaza Morlote, M.; Bernabeu, A. M.; Benazzouz, O.; Martins, V.; Mohamed, K. J.; Pinheiro, L. M.; Rey, D.; Ribeiro, S.; Rubio, B.; Santos, J. F.The sediments of the Galician Interior Basin are influenced by the Atlantic Meridional Overturning Circulation (AMOC) and by their proximity to the Western Iberia continental landmass, and thus provide an adequate archive to study the peculiarities of the last glacial‐interglacial dynamics and the transition into present day conditions. The aim of this study has been to analyse the sedimentary expression of cli...
Sugar composition, phenolic content and antioxidant activity of P. tridentatum ...
Coelho, M.T.; Diogo, G.; Martins, V.R.; Coimbra, M.A.; Alves, V.D.; Gonçalves, J.C.; Martins, M.M.Só está disponível o resumo. ; Sugar composition, phenolic content and antioxidant activity of P. tridentatum aqueous extracts: micropropagated shoots vs wild plants.
Estudo detalhado de isótopos de Nd e Sr em sedimentos do core KC 024-19 (talude...
Santos, J. F.; Martins, V.; Ribeiro, S.; Carvalho, A. T.; Matinhas, C.; Dias, J. M. A.; Rocha, F.Neste trabalho, actualizam-se os dados isotópicos de Nd e Sr que esta equipa tem vindo a obter nos últimos anos com base em amostras do core KC 024-19 (-2765 m, 42°08’98’’N, 10°29´96’’W). Este core foi colhido no talude continental da Galiza e, nele, está representada a sedimentação ocorrida nos últimos 40 ka. No nosso estudo, dá-se particular destaque aos quatro níveis de Heinrich (H1 a H4) que foram identific...
Sedimentary processes on the NW Iberian continental Shelf since the late Little...
Martins, V.; Figueira, R.C.L.; França, E.J.; Ferreira, P.A.L.; Martins, P.; Santos, J.F.; Dias, J.M.A.; Laut, L.M.; Ferreira da Silva, E.; Rocha, F.The OMEX core CD110 W90, retrieved from the Douro Muddy Patch (DMP) off the River Douro in the north of Portugal, records the last ≈150 years, i.e. the period since the late Little Ice Age (LIA). The core chronology is mainly based upon 210Pb and 137Cs activities. Geochemical, granulometric and microfaunal (benthic foraminifera) data suggest the occurrence of precipitation changes which may have been, at least ...
Análises isotópicas de Sr e Nd e sua aplicação no estudo da proveniência de sed...
Santos, J. F.; Ribeiro, S.; Matinhas, C. S. P.; Martins, V.; Dias, J. M. A.; Rocha, F.O trabalho que agora se apresenta baseia-se fundamentalmente em medições das razões 87Sr/86Sr e 143Nd/144Nd na fração arenosa da componente detrítica de doze níveis selecionados ao longo do core KC 024-19 (181cm), recolhido no talude continental da Galiza (42°08’98’’ N; 10°29’96’’ W; 2765m de profundidade). Os níveis estudados correspondem quer a eventos de Heinrich (HE), quer a níveis sem IRD (“ice-rafted debr...
Nd isotope composition of marine sediments as a tracer for iceberg provenance i...
Martins, V.; Santos, J. F.; Ribeiro, S.; Rocha, F.; Mackensen, A.; Rey, D.; Rubio, B.; Dias, J. M. A.OMEX core KC 024-19 was studied aiming at to assess the influence of climate changes on the origin and transport of the sediments of the Galician continental slope, in the last 40 thousand years. The sampled sediments are composed mostly of silt and clay, but also include a coarser-grained (sand-sized) fraction, corresponding essentially to foraminifera tests. Another remarkable feature is the occurrence of fou...
Changes in paleotemperature and paleoproductivity over the last 40,000 years: N...
Martins, V.; Dias, J. M. A.; Moreno, J.; Salgueiro, E.; Mackensen, A.; Rubio, B.; Rey, D.; Magalhães, V.; Santos, J. F.; Rocha, F.; Laut, L.This work aims to identify changes in paleoceanographic conditions on the NW Iberian Continental Margin during the last ~40 ka BP. Paleotemperatures expressed as mean annual Sea Surface Temperature (SSTma) and paleoproductivities expressed as Export Productivity (Pexpma) were evaluated using the modern analog technique SIMMAX 28, based on planktonic foraminifera census counts. The study took into account the re...
Prevalência de hipertensão arterial em adolescentes portugueses da cidade de Li...
Silva, D; Matos, A; Magalhães, T; Martins, V; Ricardo, L; Almeida, HObjetivo: Determinar a prevalência de pré-hipertensão arterial (pré-HTA) e hipertensão arterial (HTA) em adolescentes portugueses da cidade de Lisboa e averiguar a relac¸ão da pressão arterial (PA) com os fatores de risco: sexo, obesidade, tabagismo, alcoolismo, prática de exercício físico e história familiar de HTA. Metodologia: Estudo epidemiológico observacional, descritivo e transversal, numa amostra de con...
Nd isotope composition of the terrigenous component of sediments as a tracer fo...
Martins, V.; Santos, J. F.; Ribeiro, S.; Soares, A. S.; Castro, N.; Mackensen, A.; Moreno, J.; Rey, D.; Rubio, B.; Dias, J. M. A.; Rocha, F.The OMEX core KC 024-19 was studied aiming at to assess the influence of climate changes on the origin and transport of the sediments of the Galician continental slope, in the last 40 ka. The results show that sea level variation played a major role in the supply of the terrigenous sediments coming from the nearby continental areas, whose basement has a Variscan age. Additionally, coarse-grained clastic materia...
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