36 documents found, page 1 of 4
Catches, sales and discards: Small-scale fisheries in a Portuguese Marine park
Castro, N.; Romão, F.; Castro, J. J.; Pereira, T. J.; Pedro, S.; Viegas, V.; Costa, J. L.The natural park ‘‘Parque Natural do Sudoeste Alentejano e Costa Vicentina’’ (PNSACV; SW coast of continental Portugal) includes a recently implemented marine protected area of 2 km along its coast, where important, although not quantified, small-scale commercial fisheries are carried out. Conservation measures were implemented since 2011. The present study aimed to estimate the fishing effort, catches, discard...
Extensive Sheep and Goat Production: The Role of Novel Technologies towards Sus...
Silva, S.R.; Sacarrão-Birrento, L.; Almeida, M.; Ribeiro, D.M.; Guedes, C.; Montaña, J.R.G.; Pereira, A.F.; Zaralis, K.; Geraldo, A.; Tzamaloukas, O.Sheep and goat extensive production systems are very important in the context of global food security and the use of rangelands that have no alternative agricultural use. In such systems, there are enormous challenges to address. These include, for instance, classical production issues, such as nutrition or reproduction, as well as carbon-efficient systems within the climate-change context. An adequate response...
Polycarbonate based multifunctional self-sensing 2D and 3D printed structures f...
Costa, P.; Dios, J. R.; Cardoso, J.; Campo, J. J.; Tubio, C. R.; Gonçalves, B. F.; Castro, N.; Lanceros-Méndez, S.Different polycarbonate materials have been reinforced with carbon nanotubes to tune electrical conductivity and to induce piezoresistive self-sensing capabilities. Further, the composites were processed by solvent casting and fused deposition modelling (filament for 3D printing) methods. An electrical conductivity percolation threshold of ≈0.3 wt.% has been found for solvent casted films, whereas samples proce...
Can a restocking event with European (glass) eels cause early changes in local ...
Félix, P.M.; Costa, J.L.; Monteiro, R.; Castro, N.; Quintella, B.R.; Almeida, P.R.; Domingos, I.In an attempt to assist the recovery of the panmictic population of the European eel, declining since the late 1980s, the restocking of areas with low or no natural recruitment has been one of the measures adopted to reverse this trend. However, the main focus in several monitoring programmes for these actions, has been in the best interest of its viability and cost/benefit relationships and, for that, the cond...
Magnetically activated electroactive microenvironments for skeletal muscle tiss...
Ribeiro, Sylvie Oliveira; Ribeiro, C.; Carvalho, E. O.; Tubio, C. R.; Castro, N.; Pereira, Nelson; Correia, V.; Gomes, Andreia C; Lanceros-Méndez, S.This work reports on magnetoelectric biomaterials suitable for effective proliferation and differentiation of myoblast in a biomimetic microenvironment providing the electromechanical stimuli associated with this tissue in the human body. Magnetoelectric films are obtained by solvent casting through the combination of a piezoelectric polymer, poly(vinylidene fluoride-trifluoro-ethylene), and magnetostrictive pa...
Silk fibroin magnetoactive nanocomposite films and membranes for dynamic bone t...
Reizabal, A.; Brito-Pereira, R.; Fernandes, Margarida; Castro, N.; Correia, V.; Ribeiro, C.; Costa, C. M.; Perez, L.; Vilas, J. L.; Lanceros-Méndez, S.Bone-related diseases are one of the most common health conditions that limit the quality of life of elderly. Novel materials for bone tissue engineering that actively assist on the regeneration of bone tissue are thus needed. In this work, magnetoactive scaffolds comprised of silk fibroin (SF) with different content of filler cobalt ferrite nanoparticles were produced by solvent-casting and electrospinning tec...
T-cell Brazil project: preliminary results after 2 years of T-cell lymphoma reg...
De Souza, C.; Delamain, M. T.; Miranda, E.; Zing, N.; Ribeiro, G. N.; Junior, A. Cunha; Carneiro, T.; Van-Den-Berg, A.; Brasil, S.; Castro, N.Made available in DSpace on 2020-12-10T16:57:44Z (GMT). No. of bitstreams: 0 Previous issue date: 2019-10-01; Univ Estadual Campinas, UNICAMP, Campinas, SP, Brazil; Prevent Senior Hosp SP, Sao Paulo, Brazil; Univ Fed Minas Gerais, Belo Horizonte, MG, Brazil; UOPECCAN Uniao Oeste Paranaense Estudos & Combate, Cascavel, Parana, Brazil; Ophir Loyola Hosp, Belem, Para, Brazil; FCM Santa Casa Sao Paulo, Sao Paulo, B...
Physically active bioreactors for tissue engineering applications
Castro, N.; Ribeiro, Sylvie Oliveira; Fernandes, M. M.; Ribeiro, C.; Cardoso, V.; Correia, V.; Minguez, R.; Lanceros-Méndez, S.Tissue engineering (TE) is a strongly expanding research area. TE approaches require biocompatible scaffolds, cells, and different applied stimuli, which altogether mimic the natural tissue microenvironment. Also, the extracellular matrix serves as a structural base for cells and as a source of growth factors and biophysical cues. The 3D characteristics of the microenvironment is one of the most recognized key ...
The application of omics in ruminant production: a review in the tropical and s...
Ribeiro, D.M.; Salama, A.A.K.; Vitor, A.C.M.; Arguello, A.; Moncau, C.T.; Santos, E.M.; Caja, G.; Oliveira, J.S.; Balieiro, J.C.C.The demand for animal products (e.g. dairy and beef) in tropical regions is expected to increase in parallel with the public demand for sustainable practices, due to factors such as population growth and climate change. The necessity to increase animal production output must be achieved with better management and production technologies. For this to happen, novel research methodologies, animal selection and pos...
Recent progress on piezoelectric, pyroelectric, and magnetoelectric polymer-bas...
Costa, Pedro Filipe Ribeiro; Nunes-Pereira, João; Pereira, N.; Castro, N.; Gonçalves, Sérgio Abílio Pereira; Lanceros-Méndez, S.Energy harvesting from the environment based on electroactive polymers has been increasing in recent years. Ferroelectric polymers are used as mechanical-to-electrical energy transducers in a wide range of applications, scavenging the surrounding energy to power low-power devices. These energy-harvesting systems operate by taking advantage of the piezoelectric, pyroelectric, and magnetoelectric properties of th...