29 documents found, page 1 of 3

Impact of age, VR, immersion, and spatial resolution on classifier performance ...

There are many factors outlined in the signal processing pipeline that impact brain–computer interface (BCI) performance, but some methodological factors do not depend on signal processing. Nevertheless, there is a lack of research assessing the effect of such factors. Here, we investigate the impact of VR, immersiveness, age, and spatial resolution on the classifier performance of a Motor Imagery (MI) electroe...

Finding the optimal time window for increased classification accuracy during mo...

Motor imagery classification using electroencephalography is based on feature extraction over a length of time, and different configurations of settings can alter the performance of a classifier. Nevertheless, there is a lack of standardized settings for motor imagery classification. This work analyzes the effect of age on motor imagery training performance for two common spatial pattern-based classifier pipeli...

A pig slurry feast/famine feeding regime strategy to improve mesophilic anaerob...

The increasing concentration of livestock farms results in large amounts of waste production and the need for their management. The study of anaerobic digestion (AD) technology, under mesophilic conditions, applied to pig slurry is of the upmost importance for biogas recovery and sanitised digestate, contributing to a circular economy. The assessment of the effects of a feast/famine regime on biogas and biometh...

Ordinary differential equations with singular coefficients: An intrinsic formul...

Determinação da pegada hídrica na fileira vitivinícola: resultados preliminares...

As alterações climáticas e a escassez de água daí decorrente têm levantado preocupações junto do setor agrícola, e em particular na fileira vitivinícola, devido ao impacto que esta tem na produção e qualidade do vinho. O uso eficiente dos recursos naturais e a subsequente redução dos custos de produção através da adoção de práticas mais sustentáveis é hoje um objetivo dos vitivinicultores. O projeto WineWATERFo...

WATERFootprint of wine chain: comparison between two case studies portuguese

Water scarcity caused by climate change and its implications on grape production and quality have raised concerns among wine producers. The adoption of sustainable practices is now a goal of winemakers since the efficient use of resources allows them to reduce production costs. The WineWaterFootprint project evaluated the water footprint in the wine industry through the development of a methodology applied to t...

Epidemiological characterization of a population with MINOCA

Introduction: Myocardial infarction with non-obstructive coronary arteries (MINOCA) accounts for 1–14% of all infarctions and represents an entity clinically defined by the presence of universal criteria for acute coronary syndrome, absence of obstructive coronary artery disease (OCD) (≥50% stenosis), with no other obvious cause for the clinical presentation. The clinical characteristics and prognosis of these ...

Can we rely on iFR for avoiding FFR? Conclusions of a 5-year experience

Background: Recently, the instantaneous wave free ratio (iFR), has been proposed an alternative or complementary method to fractional flow reserve (FFR). This new method does not require the use of adenosine and may expedite the speed of functional assessment. The iFR “hybrid strategy” relies on values <0,86 or >0,93 as definitive results which would not require the use of FFR. However, this strategy is much le...

iFR diagnostic accuracy using FFR as gold standard : insights from a 5-year exp...

Background: Functional coronary lesion assessment by fractional flow reserve (FFR) is commonly employed worldwide. Recently, several studies have focused on a new parameter, the instantaneous wave free ratio (iFR), as an alternative or complementary method to FFR which does not require the use of adenosine. The use of iFR, however, is not consensual: its ideal cut-off and interpretation are still not completely...

Uso de água em empreendimentos turísticos

O clima é um dos fatores que mais influencia a procura turística, pelo que as alterações climáticas (AC) têm um grande impacto no setor do turismo. Os principais efeitos destas incluem o aumento da temperatura média anual, alterações na precipitação e variações na frequência e intensidade de fenómenos climáticos extremos. Estes efeitos podem ter impacto direto sobre os fluxos de turistas, por interferirem na sa...