3126019 documents found, page 312505 of 312602
Aplicação de ferramentas de marketing digital nas empresas turísticas
Coelho, Rafael CarreiraNas últimas décadas, o turismo consolidou-se como uma das atividades que mais tem contribuído para o desenvolvimento de inúmeros países, regiões e cidades. Em Portugal, tornou-se a maior atividade económica exportadora, contribuindo fortemente para o crescimento do Produto Interno Bruto (PIB) nacional. Tais factos, espelham, de forma evidente, a importância que este deteve no desenvolvimento socioeconómico do p...
Solving boundary value problems on manifolds with a plane waves method
Alves, Carlos J. S.; Antunes, Pedro R. S.; Martins, Nuno F. M.; Valtchev, Svilen S.In this paper we consider a plane waves method as a numerical technique for solving boundary value problems for linear partial differential equations on manifolds. In particular, the method is applied to the Helmholtz–Beltrami equations. We prove density results that justify the completeness of the plane waves space and justify the approximation of domain and boundary data. A-posteriori error estimates and nume...
O ouro e o algodão
Barbosa, Patricia Isabel Carvalho''O ouro e o algodão'' reflete o contraste e a proximidade entre duas matérias. Se por um lado, o ''ouro'' é sinónimo de joia, detalhe, valor, simbólico e essencialmente não pragmático, o ''algodão'' é sinónimo de pragmatismo, de matéria que tapa, protege e menos nobre. Partindo desta lógica, o projeto ''O ouro e o algodão'' explora a relação entre a joia e o vestuário, através do estudo de ambos, enquanto elem...
Web AR Solution for UAV Pilot Training and Usability Testing
Ribeiro, Roberto; Ramos, João; Safadinho, David; Reis, Arsénio; Rabadão, Carlos; Barroso, João; Pereira, AntónioData and services are available anywhere at any time thanks to the Internet and mobile devices. Nowadays, there are new ways of representing data through trendy technologies such as augmented reality (AR), which extends our perception of reality through the addition of a virtual layer on top of real-time images. The great potential of unmanned aerial vehicles (UAVs) for carrying out routine and professional tas...
Ethnography and education in Portugal: a brief look
Silva, PedroIn this paper I shortly consider the relationship between ethnography and education and the ethnographer and the teacher. Most of the paper, however, is dedicated to a description and analysis of what has been done in Portugal in what concerns ethnographic research on educational issues. I also point to some works on the ethnographic method made in Portugal.
“Feeling Trapped in Prison” Due to the COVID-19 Pandemic: Perceptions and Pract...
Baccon, Wanessa Cristina; Salci, Maria Aparecida; Carreira, Lígia; Gallo, Adriana Martins; Marques, Francielle Renata Danielli MartinsThe COVID-19 pandemic had several repercussions on prison staff, but the currently available evidence has mainly ignored these effects. This qualitative study aimed to understand the impact of COVID-19 on the prison system through the narratives of health and security professionals, using the methodological framework of the constructivist grounded theory proposed by Charmaz. The sample included 10 healthcare wo...
Compreensão Leitora em Pessoas com Trissomia 21 – Revisão de Escopo
Barradas, Beatriz; Correia, Maria Rodrigues; Taveira, Luísa; Rodrigues, Inês TelloO objetivo deste trabalho foi analisar os fatores que influenciam a compreensão leitora nas pessoas com Trissomia 21. Revisão de escopo elaborada de acordo com as diretrizes da Prefered Reporting Items for Systematic Reviews and Meta-Analyses. A pesquisa foi realizada nas bases de dados PubMed Central, LILACS, SciELO e via EBSCOHost. Os registos foram analisados por dois investigadores independentes. Os descrit...
Predictive models for physical and mechanical properties of Ti6Al4V produced by...
Bartolomeu, F.; Faria, S.; Carvalho, O.; Pinto, E.; Alves, Nuno; Silva, F.S.; Miranda, G.The properties of parts produced by Selective Laser Melting (SLM) are highly influenced by the processing parameters. The calculation of the energy density is not enough for justifying the mechanical and physical properties, and understand the microstructures of Ti6Al4V samples produced by SLM. In fact, samples produced with the same energy density, but with different processing parameters, present distinct pro...
Mathematical circus clown tricks
Hall, A.; Almeida, P.; Vettori, P.; Pais, S.The Mathematical Circus project was created in 2011 by the LUDUS association with the main goal of promoting the interest and motivation for learning mathematics. The Mathematical Circus team performs mathematical magic shows where complementary skills are merged to produce a high intervention capacity within a wide geographical range in Portugal. Some tricks are performed by a mathematical clown, a unique char...
The Use of Polypropylene and High-Density Polyethylene on Cork Plastic Composit...
Brites, Fernando; Malça, Cândida; Gaspar, F.; Horta, J. F.; Franco, M. C.; Biscaia, S.; Mateus, A.This work focuses on studying the possibility of 3D printing of composite materials composed by cork and a polymer matrix (CPC). Initially the cork was mixed with two types of polymers (HDPE and PP) in different proportions and later processed using extrusion and injection. The composites were tested to study the physical, chemical and mechanical properties. The material was then tested on a large-scale 3D prin...