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Left-sided infective endocarditis: analysis of in-hospital and medium-term outc...

Ferreira, J.; Gomes, F.; Rodrigues, P.; Araújo Abreu, M.; Maia, J.; Bettencourt, P.; Luz, A.; Torres, S.; Araújo Correia, J.

Abstract Introduction: Despite diagnostic and therapeutic advances, infective endocarditis (IE) remains a challenging and potentially lethal disease. The prognosis of IE remains poor; in the last 30 years, its incidence and mortality have only been marginally reduced. Early identification of high-risk patients can change the course of the disease and improve outcomes. Objectives and methods: To describe and inv...


Carbon footprint of apple and pear: orchards, storage and distribution

Figueiredo, Filipa; Castanheira, Érica Geraldes; Feliciano, Manuel; Rodrigues, M.A.; Peres, António M.; Maia, Filipe; Ramos, António; Carneiro, João

Apple and pear represent 51% of fresh fruit orchards in Portugal. This paper presents a life-cycle (LC) greenhouse gas (GHG) assessment (so-called carbon footprint) of 3 apple and 1 pear Portuguese production systems. An LC model and inventory were implemented, encompassing the farm stage (cultivation of fruit trees in orchards), storage and distribution (transport to retail). The functional unit considered in ...

Data: 2013   |   Origem: Biblioteca Digital do IPB

Carbon footprint of apple and pear: orchards, storage and distribution

Figueiredo, Filipa; Castanheira, Érica Geraldes; Feliciano, Manuel; Rodrigues, M.A.; Peres, António M.; Maia, Filipe; Ramos, António; Carneiro, João

Apple and pear represent 51% of fresh fruit orchards in Portugal. This paper presents a life-cycle (LC) greenhouse gas (GHG) assessment (so-called carbon footprint) of 3 apple and 1 pear Portuguese production systems. An LC model and inventory were implemented, encompassing the farm stage (cultivation of fruit trees in orchards), storage and distribution (transport to retail). The functional unit considered in ...

Data: 2013   |   Origem: Biblioteca Digital do IPB

X-ray and UV imaging with multi-GEM/MHSP gaseous detectors

J.M. Maia; A. Breskin; R. Chechik; J.F.C.A. Veloso; J.M.F. dos Santos

We present the recent results regarding the application of cascades of GEMs and a MHSP in the detection and imaging of X-rays and UV-photons. The imaging system tested consisted in a micropattern gas detector based in multi-GEM or multi-GEM/MHSP electron multipliers, a 20´20 mm2 Wedge & Strip (W&S) readout electrode with 1.6 mm pitch positioned below and at close distance of a resistive electrode,...

Data: 2012   |   Origem: Electrónica e Telecomunicações

Stability of blood gases when refrigerated

Ferreira, J.; Silva, S.; Rodrigues, P.; Abreu, M.; Maia, J.; Carvalho, D.; Carvalho, L.

Background: Blood gas analysis is a widely used procedure. In clinical practice, the physicians may not always have a blood gas analyzer in their proximity. Not infrequently, blood gas samples are stored in a fridge or on ice and read retrospectively. Continued anaerobic and aerobic metabolism in the blood may alter blood gases in the interval between drawing arterial blood and its analysis, which may cause a f...


Razões para alteração da terapêutica antiretrovírica: retrospectiva de cinco anos

Silva, M.; Maia, A.; Ventura, A.; Pereira, M.; Fontes, S.; Rocha, P.; Sarmento e Castro, R.


Decavanadate, decaniobate, tungstate and molybdate interactions with sarcoplasm...

Fraqueza, Gil; Carvalho, Luís A. E. Batista de; Marques, M. Paula M.; Maia, Luisa; Ohlin, C. André; Casey, William H.; Aureliano, M.

Recently we demonstrated that the decavanadate (V10) ion is a stronger Ca2+-ATPase inhibitor than other oxometalates, such as the isoelectronic and isostructural decaniobate ion, and the tungstate and molybdate monomer ions, and that it binds to this protein with a 1 : 1 stoichiometry. The V10 interaction is not affected by any of the protein conformations that occur during the process of calcium translocation ...


Matrix Gla protein expression: a complex process involving the use of alternati...

Cancela, Leonor; Laizé, Vincent; Conceição, N.; Tiago, Daniel M.; Maia, A. T.; Bensimon-Brito, A.; Gavaia, Paulo J.

Matrix Gla protein (MGP) is a secreted vitamin K-dependent protein (VKD) located in the extracellular matrix and capable of binding calcium through its -carboxyglutamate residues. Although identified in 1983, transcriptional and post-transcriptional mechanisms regulating its expression remain unclear.


Predicting olive phenology in Portugal in a warming climate

Melo-Abreu, J.P.; Cordeiro, A.M.; Maia, F.B.; Barba, N.G.; Barros, F.; Ribeiro, A.C.; Neves, A.; Vilallobos, F.; Nunes, L.F.; Cardoso, R.M.

Prediction of flowering of olive trees should account for chilling requirements, using an appropriate chilling unit for the accounting of chilling accumulation. After chilling requirements are satisfied, dormancy break takes place. Thereafter, the trees enter the forcing phase, in which the thermal time approach is used, but an appropriate base temperature must be determined. Such a model was developed, calibra...

Data: 2012   |   Origem: Biblioteca Digital do IPB

Previsão de estados fenológicos da oliveira, vingamento e qualidade do pólen e ...

Melo-Abreu, J.P.; Cordeiro, A.M.; Maia, F.B.; Barba, N.W.G.; Barros, F.; Ribeiro, A.C.; Neves, A.; Ribeiro, H.; Abreu, Ilda; Nunes, L.F.

Os dados para a calibração e validação dos modelos resultam dum projeto FCT que se encontra no terceiro ano. Abrange quatro cultivares (Arbequina, Cobrançosa, Galega, Picual), quatro localizações principais (Mirandela, Santarém, Elvas e Moncarapacho). Os dados das temperaturas horárias foram obtidos a partir de estações meteorológicas localizadas na vizinhança dos ensaios. Os dados do vingamento foram obtidos a...

Data: 2012   |   Origem: Biblioteca Digital do IPB

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Fundação para a Ciência e a Tecnologia Universidade do Minho   Governo Português Ministério da Educação e Ciência Programa Operacional da Sociedade do Conhecimento União Europeia