29 documents found, page 1 of 3
Estimation of Annual Productivity of Sown Rainfed Grasslands Using Machine Lear...
Morais, Tiago; Jongen, M.; Tufik, C.; Rodrigues, N.; Gama, I.; Serrano, João; Domingos, T.; Teixeira, R.Grasslands play a critical role in providing diverse ecosystem services. Sown biodiverse pastures (SBP) rich in legumes are an important agricultural innovation that increases grassland productivity and reduces the need for fertilisers. This study developed a machine learning model to obtain spatially explicit estimations of the productivity of SBP, based on field sampling data from five Portuguese farms during...
Business environment and competitiveness in Portugal
Teixeira, R.; Pereira, L. F.; Carvalho, J. C. de.; Silva, R. V. da.; Simões, A.The context for this research was the lack of data and studies on how to improve the business competitive environment and make it more interesting for foreign direct investment, in particular in Portugal economy. Two research questions were formulated to understand the main perspectives of Portugal competitiveness and main ideas to Portuguese companies become more competitive using a qualitative methodology bas...
Predictors of myositis in mixed connective tissue disease: a multicentre retros...
Melo, A. T.; António, M. Silvério; Martinho, J. Martins; Guimarães, F.; Dourado, E.; Oliveira, D.; Lopes, J.; Saraiva, A.; Gago, A.; Correia, M.Objectives: We aimed to identify clinical and serological predictors of myositis in mixed connective tissue disease (MCTD). Methods: We performed a nationwide, retrospective, multicentre study including adult-onset MCTD patients fulfilling at least one of the following diagnostic criteria: Sharp’s, Kasukawa, Alarcón-Segovia, or Kahn’s. Univariable analysis was performed using Chi-square, Fisher exact, Student’s...
Multi-material fused filament fabrication: an expedited methodology to assess t...
Cunha, P.; Teixeira, R.; Carneiro, O. S.; Ferreira da Silva, AlexandreThe impact of 3D printing and how it is present in everyday life is unquestionable. Provided with almost total freedom of design and a vast list of materials, 3D printing has attracted enormous interest, being the fused filament fabrication (FFF) technique one of the main drivers. Given the vast range of compatible materials, FFF potential is being further developed towards multi-material prints. Still, one of ...
O professor com deficiência física: Análise de riscos e proposta de intervenção
Marques, J.; Monteiro, M.; Navega, R.; Teixeira, R.; Alves, S.; Sousa, I. C.Enquadramento e principais objetivos do trabalho: O trabalho dos professores tem um valor incontestável devido ao contributo da educação para o desenvolvimento económico e social de qualquer nação. A profissão de professor é considerada de risco pela Organização Internacional do Trabalho (OIT) desde a década de 80, em resultado das inúmeras mudanças sociais, culturais, políticas e económicas que ocorreram no sé...
Dietary Habits and Gaming Behaviors of Portuguese and Brazilian Esports Players
Ribeiro, F.J.; Teixeira, R.; Poínhos, RuiAs the esports industry grows, marketing campaigns for fast food, soft drinks, alcoholic and energy drinks, and dietary supplements at related events intensify. Portuguese and Brazilian esports players dietary patterns remain unexplored. This study aimed to characterize the dietary and gaming habits of esports players. We applied an anonymous, open online survey to a convenience sample of esports players that i...
Comparative Analysis of Pasture Soil Fertility in Semiarid Agro-Silvo-Pastoral ...
Moral, F.; Serrano, J.; Rebollo, F.; Teixeira, R.; Domingos, T.Dryland pastures are usually on soils with a low fertility. However, a high spatial variability is apparent in pasture soils. In consequence, the application of inputs should be based on the particular characteristics of each field and their within-field variability. In this study, a comparative analysis of seven experimental fields (agro–silvo–pastoral ecosystems) in the southwest of the Iberian Peninsula was ...
Spatiotemporal Patterns of Pasture Quality Based on NDVI Time-Series in Mediter...
Serrano, João; Shahidian, S.; Paixão, L.; Marques da Silva, J.; Morais, T.; Teixeira, R.; Domingos, T.The evolution of dryland pasture quality is closely related to the seasonal and interannual variability characteristic of the Mediterranean climate. This variability introduces great unpredictability in the dynamic management of animal grazing. The aim of this study is to evaluate the potential of two complementary tools (satellite images, Sentinel-2 and proximal optical sensor, OptRx) for the calculation of th...
Increased interaction and procedural flexibility favoured participation: Study ...
Marques, S. C. S.; Doetsch, J. N.; Teixeira, R.; Abate, G.; Brødsgaard, A.; Brubakk, A.-M.; Colombo, G.; Cuttini, M.; Evensen, K. A. I.; Hennissen, V.Objective: To understand participation and attrition phenomena variability in European cohorts of individuals born preterm through in-depth exploration of the interplay of situational elements involved. Methods: Multi-situated qualitative design, using focus groups, semi-structured interviews and collaborative visual methodology with a purposive sample of adults born preterm, parents and professionals (n = 124)...