3121728 documents found, page 311854 of 312173
Ehrlichia canis and Rickettsia conorii Infections in Shelter Dogs: Seropositivi...
Afonso, Paulo; Lopes, Ana Patrícia; Quintas, Helder; Cardoso, Luís Miguel; Coelho, Ana CláudiaA cross-sectional study was conducted to gain insight into the epidemiology of canine ehrlichiosis and rickettsiosis in northern Portugal. Specific IgG antibodies to Ehrlichia canis were analysed using a commercial enzyme-linked immunosorbent assay (ELISA), and antibodies to Rickettsia conorii were analysed using a commercial indirect immunofluorescence antibody test (IFAT). A total of 113 dogs from two differe...
Variability in young swimmer’ performance and its determinant factors: a two-ye...
Morais, J. E.; Costa, M.J.; Moreira, Marc; Marques, Mário C.; Silva, A.J.; Marinho, D.A.; Barbosa, Tiago M.Predicting sports performance and identifying talented athletes at early ages seems to be a challenging task for practioners and researchers. Based on this, the follow-up of individual pathway to exper?se should be a regular procedure among sports practioners.
Efeito do regime hídrico e da fertilização azotada no rendimento e qualidade da...
Carvalho, Miclay dos Reis Pereira; Rodrigues, M.A.; Ribeiro, A.C.O uso da água e fertilizantes na agricultura de forma sustentável tornou-se uma prioridade, simultaneamente com a implementação de técnicas culturais que mantenham rendimentos elevados, melhorando assim as produtividades da água e da fertilização. O objetivo desse estudo consiste em avaliar os efeitos de diferentes níveis de rega e de fertilização azotada no rendimento e qualidade da cultivar de tomate coração-...
Preparation of chitosan/gum Arabic nanoparticles and their use as novel stabili...
Sharkawy, Asma; Barreiro, M.F.; Rodrigues, AlírioRecently, there has been a renewed interest in Pickering emulsions owing to their surfactant-free nature, and the use of natural-based particles as stabilizers became a priority due to the applications they can enable. In this work, chitosan/gum Arabic (CH/GA) nanoparticles were synthesized and tested as novel stabilizers. Among the tested CH/GA weight ratios, the particles prepared using 1:1 ratio exhibited ne...
Separation of branched hexane isomers on zeolite BETA
Bárcia, Patrick da Silva; Silva, José A.C.; Rodrigues, AlírioSorption equilibrium studies and kinetics of hexane isomers were studied on zeolite Beta between temperatures 423-523 K. Good selectivities were obtained.
Comparative study before and after innovative learning methodology – a qualitat...
Pinto, Isabel C.; Almeida-de-Souza, Juliana; Veiga-Branco, Augusta; Pereira, Olívia R.The actives learning methodologies appears as new education policies and those hold students accountable for their own learning. Also a growing number of study results are finding positive relationships between active methodologies and student learning. In this sense, it is important to understand the perceptions of innovative process experiences in learning. Aims: Create a qualitative analysis about student pe...
Extraction of chlorophylls from the aerial parts of carrots (Daucus Carota L.) ...
Molina, Adriana K.; Gomes, Leonardo Corrêa; Pereira, Carla; Dias, Maria Inês; Prieto Lage, Miguel A.; Ferreira, Isabel C.F.R.; Barros, LillianThe food industry has a great interest in the use of wastes and by-products that are not used by the industrial food sector from which they are originated, since they cause economic losses and high environmental pollution. For being a rich source of nutrients and bioactive compounds, such as chlorophylls, some bio-residues can find application as natural food colorants. These molecules have potential to be used...
A prototype for an intelligent water management system for household use
Mamede, Henrique; Neves, João Cortez; Martins, José; Gonçalves, Ramiro Manuel; Branco, FredericoWater scarcity is becoming an issue of more significant concern with a major impact on global sustainability. For it, new measures and approaches are urgently needed. Digital technologies and tools can play an essential role in improving the effectiveness and efficiency of current water management approaches. Therefore, a solution is proposed and validated, given the limited presence of models or technological ...
Caracterização físico-química e avaliação da atividade antioxidante de romãs da...
Fernandes, Luana; Pereira, J.A.; Lopéz-Cortés, Isabel; Salazar, Domingo M.; Ramalhosa, ElsaO presente trabalho teve como objetivo proceder à caracterização físico-química e avaliar a atividade antioxidante da casca exterior, película, sementes e sumo de romãs da cultivar Mollar de Elche, de proveniência espanhola, em quatro estados de maturação (baixo, baixo-médio, médio e médio-alto). Os resultados mostraram que ao longo da maturação, o peso dos frutos aumentou e a cor da casca foi predominantemente...
Blockchain technology enhances sustainable higher education
Bucea-Manea-Țoniş, Rocsana; Martins, Oliva M.D.; Bucea-Manea-Țoniş, Radu; Gheorghiță, Cătălin; Kuleto, Valentin; Ilić, Milena P.; Simion, VioletaThis research investigates blockchain technology, focusing on the influence of motivation on collaborative work, which positively influences learning performance in Higher Education Institutions (HEI). In addition, blockchain technology is correlated with decentralisation, security and integrity, and anonymity and encryption. It can also be perceived as a consensus mechanism, rewarding students, professors, and...