210 documents found, page 1 of 21
Mapas conceituais no ensino, avaliação e aprendizagem da matemática
Martins, António; Borralho, António; Lucena, Isabel; Borcem, TharsilaEste artigo analisa produções científicas, no contexto brasileiro, que utilizaram os mapas conceituais ligados ao ensino de matemática em turmas do Ensino médio, com o objetivo de mapear as ideias produzidas e verificar possíveis lacunas para fortalecer o arcabouço teórico dos estudos que tratam os mapas conceituais como ferramenta pedagógica nos processos de ensino, avaliação e aprendizagem de matemática. A pe...
Private financing, R&D, and export activity: evidence from Portugal
Bação, Pedro; Martins, António; Portela, MiguelUsing firm-level data for Portugal, 2006–2021, we investigate linkages between private financing — private equity (including venture capital) and private debt — and firms’ exporting and innovation. Combining matching and regression procedures, we find that private financing is associated with exporting and R&D activity. Firms financed by private equity are more likely to export and to export a larger share of t...
Anterior Cruciate Ligament Reconstruction: Flowchart of Technical Options and R...
Guerra Pinto, Francisco; Alçada, Rita; Pacheco, Jácome; Moraes Sarmento, Gonçalo; Martinho, Carlos; Martins, António; Alçada, RitaThe anterior cruciate ligament (ACL) reconstruction is one of the most frequently performed orthopedic surgeries. Despite the extensive literature available, it is difficult to find a pragmatic description of the different technical variants that can guide multiple surgical decisions. In this review article, the technical variants of ACL reconstruction are systematically described, namely in the collection and ...
Marine terrace staircases of western Iberia: Uplift rate patterns from rocky li...
Martins, António; Gouveia, Margarida; Cunha, Pedro; Cabral, João; Gomes, Alberto; Falguères, Christophe Falguères; Voinchet, Pierre; Stokes, MartinThe Western Iberian Peninsula is undergoing compressive tectonic reactivation, resulting in spatial and temporal variations of surface uplift. Uplift quantification can be undertaken in coastal settings using staircases of shore platforms developed onto rocky headlands. This study analyses two marine terrace staircases in central Portugal: Cape Raso - Abano beach and Cape Espichel. Geomorphic and stratigraphic ...
Locais de interesse geomorfológico dos domínios setentrionais da Zona de Ossa M...
Pereira, Diamantino; Moreira, Noel; Moura, Pedro; Martins, António; Araújo, AlexandreO património natural tem vindo a ganhar cada vez maior importância na ótica do ordenamento do território e do turismo de natureza. Este trabalho caracteriza oito sítios de interesse geomorfológico dos domínios setentrionais da Zona Ossa Morena (Alentejo), visando expor o seu valor científico, educativo, cénico e turístico, bem como contribuir para a valorização do território e a sua geoconservação. Seis sítios ...
Plio-Quaternary coastal uplift along the western Iberian Margin: insights from ...
Gouveia, Margarida; Cunha, Pedro; Martins, António; Stokes, Martin; Gomes, Alberto; Falguères, Christophe; Voinchet, Pierre; Jacques Bahain, JeanThis study presents a detailed geomorphological and geochronological analysis of a marine terrace staircase developed into the Peniche Peninsula (Portugal), a rocky headland of Jurassic carbonate bedrock located in the central sector of the Western Iberian passive margin. The marine terrace levels are described morphologically and sedimentologically, but also dated using ESR and U-Series methodologies. The mari...
Unveiling the agronomic potential of extracellular polymeric substances recover...
Amorim, Catarina L.; Pereira, Sofia I.A.; Sousa, Ana S. S.; Wilfert, Philipp; Loosdrecht, Mark van; Martins, António; Castro, Paula M. L.Background: Extracellular polymeric substances (EPS) recovered from waste aerobic granular sludge (AGS) generated during wastewater treatment represent a promising route for resource recovery. As valuable biopolymers, EPS have garnered special attention across multiple sectors, particularly agriculture, although their benefits in this field remain understudied. This study assessed the agronomic potential of EPS...
Enhancing photosynthetic efficiency and nutrient uptake in Maize (Zea mays L.) ...
Amorim, Catarina L.; Pereira, Sofia I. A.; Sousa, Ana S. S.; Wilfert, Philipp; Loosdrecht, Mark van; Martins, António; Castro, Paula M. L.Extracellular polymeric substances (EPSs) are biopolymers that can be recovered from waste aerobic granular sludge (AGS) generated in wastewater treatment plants (WWTPs). These biopolymers represent a valuable resource with attractive attributes, making them suitable for applications across different sectors. In agriculture, EPSs have attracted growing interest, although their beneficial effects are still under...
Enhancing photosynthetic efficiency and nutrient uptake in Maize (Zea mays L.) ...
Amorim, Catarina L.; Pereira, Sofia I. A.; Sousa, Ana S. S.; Wilfert, Philipp; Loosdrecht, Mark van; Martins, António; Castro, Paula M. L.Extracellular polymeric substances (EPS) can be recovered from waste aerobic granular sludge (AGS) generated during biological wastewater treatment. These biopolymers are rich in organic carbon and nutrients and can improve the water-holding capacity of soils, making them suitable for agricultural applications.
Case study: water reuse in citrus farming - carbon emissions reduction and ecos...
Resende, Flávia C.; Silva, Manuela Fernanda Gomes Moreira da; Anibal, Jaime; Martins, António; Duarte, AmilcarAnthropogenic factors and climate change are putting increasing pressure on natural water resources, threatening habitats and biodiversity (Libutti et al.2018, Rebelo et al., 2020). Worldwide, agriculture uses around 70% of the total water used in human activities. In addition, the demand for food and animal feed production tends to increase with the growth of the world population (Parris, 2010; Becerra-Castro ...