Browsing by Issue Date, starting with "2023-11-27"
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- O uso da gamificação em contexto de sala de aula, como fator motivador para aprendizagem de inglês, língua estrangeira, no 2º Ciclo do Ensino BásicoPublication . Calvinho, Marta Agostinho; Orega, Maria Isabel MendonçaO presente estudo incide na utilização da gamificação em sala de aula como uma estratégia motivadora na aprendizagem de Inglês, no 2º Ciclo do Ensino Básico. O objetivo deste estudo é mostrar que ao utilizar uma aula mais prática e dinâmica, como o uso da gamificação, é um fator motivador que ajuda o processo de ensino-aprendizagem dos alunos. Pretendemos mostrar que este tipo de aula promove a motivação para a aprendizagem da língua e é, também, uma estratégia para fugir ao tipo de aula tradicional a que os alunos estão habituados e que já não os motiva. Então, é necessário criar estratégias que continuem a suscitar interesse e entusiasmo por aprender. Neste estudo foram recolhidos dados através de registo de observações por parte da docente e por aplicação de questionários a uma turma de 5.º ano do 2.º Ciclo durante a Prática de Ensino Supervisionada. Com a aplicação destes questionários conseguimos perceber que a utilização do jogo em sala de aula é, efetivamente, motivadora e faz despertar efeitos positivos no interesse, autonomia e desenvolvimento dos alunos a longo prazo. A gamificação pode constituir um recurso impulsionador da motivação dos alunos e que está de acordo com as suas necessidades.
- Assessing differences on the epifaunal assemblages of an invasive and native macroalgae in São Miguel Island Marine Protected AreasPublication . Louro, Jéssica Rodrigues; Cruz, Joana Maria dos Reis Franco; Botelho, Andrea Zita CostaMarine macroalgae play an important role acting as ecosystem engineers in intertidal coastal waters. Their connection with epifaunal assemblages is crucial, since food resources are provided, as well as protection from physical stress, and shelter from predators. The structure and composition of epifaunal communities can be distinctively influenced by different macroalgae species. Over the years, the introduction of non-native species has increased, and impacts resulting from biological invasions have been responsible for significant changes to ecosystem structure and functioning. Being a remote oceanic island, the Azores can be highly influenced by the introduction of new species, affecting the specific ecological existent niche. In this context, marine protected areas allow to preserve biodiversity and maintain ecosystems. Due to this reason, it is imperative to maintain a constant monitoring, whether assessing the evolution of the already identified invasive species or preventing and control the introduction of new ones, that can seriously damage the native populations and even affect socioeconomic factors and human health. The present study aimed to test the following hypotheses: 1) The associated epifaunal assemblages inhabiting algae in rockpools inside and outside marine protected areas are different, and 2) There are differences in abundance, richness and diversity in those communities between indigenous and non-indigenous macroalgal species. To test the hypotheses, Rugulopteryx okamurae (non-indigenous) and Halopteris scoparia (native) were collected in rockpools inside and outside MPAs, and macroinvertebrates inhabiting macroalgae were posteriori counted and separated in taxonomic groups. The results showed that no significant differences were found for abundance, richness and diversity of macroinvertebrates assemblages regarding in and out MPAs, as well as between native and invasive algae. The present study results suggest that MPAs might not being effective and might have insufficient management conservation efforts and R. okamurae might have a similar functional role as H. scoparia not affecting the epifaunal structure inhabiting rock pools.
- Development and validation method for the extraction of bioactive compounds from Opuntia ficus-indica fruits and evaluation of theirantioxidant and enzymatic activitiesPublication . Freiria, Nícolas Luís Moreira; Miguel, Maria da Graça Costa; Lovillo, Miguel PalmaEste estudo investiga os principais determinantes que moldam a atividade antioxidante dentro dos frutos de Opuntia ficus-indica, utilizando o método de Extração Assistida por Micro-ondas (MAE). Através de um Design de Superfície de Resposta Box-Behnken e uma análise rigorosa, insights essenciais foram revelados sobre como diferentes condições de extração influenciam o potencial antioxidante. Significativamente, nossos achados destacam o papel proeminente da porcentagem de etanol (EtOH) na constituição do solvente, pois emergiu como um determinante crucial, exibindo um efeito positivo. Porcentagens mais altas de etanol foram associadas a um poder antioxidante aprimorado, enfatizando seu papel na influência favorável da extração de compostos antioxidantes. Uma análise abrangente das atividades de inibição enzimática foi realizada, e a avaliação abrangeu uma variedade de enzimas, incluindo DPPH, superóxido, tirosinase, lipase, α- glucosidase, acetilcolinesterase, α-amilase e lipoxigenase, sob diferentes condições de extração. Notavelmente, os resultados revelaram tendências distintas na inibição enzimática influenciadas pela escolha dos parâmetros de extração. Porcentagens mais altas de etanol e temperaturas moderadas consistentemente demonstraram efeitos inibitórios aprimorados nas atividades de DPPH e acetilcolinesterase, enquanto porcentagens mais baixas de etanol e temperaturas mais baixas exibiram um potencial de inibição superior para tirosinase e α- glucosidase. Além disso, a inibição da lipoxigenase foi mais pronunciada sob condições específicas de porcentagem de etanol e potência. O estudo também destacou o impacto do tipo de enzima nos resultados de inibição, com a inibição da lipase e α-amilase mostrando sensibilidades variadas às condições experimentais. Isso enfatizou a necessidade de abordagens personalizadas com base na enzima alvo. Esses achados ressaltam a necessidade de uma exploração adicional da composição química dos compostos bioativos, insights mecanicistas, biodisponibilidade e perfis de segurança. Os compostos identificados apresentaram inibição potente contra várias enzimas, sugerindo aplicações potenciais no desenvolvimento de medicamentos e formulações de alimentos funcionais.
- Emotional, cognitive and behavioural repercussions of hotel guests' experiencesPublication . Souki, Gustavo; Oliveira, Alessandro Silva de; Barcelos, Marco Túlio Correa; Martins Guerreiro, Maria Manuela; da Costa Mendes, Júlio; Moura, Luiz Rodrigo CunhaPurpose - Hotels offer high-quality guest experiences to positively impact their emotions, satisfaction, perceived value, word-of-mouth (WOM) and electronic word-of-mouth (eWOM). This study aims to investigate the impacts of the quality perceived by hotel guests on their positive emotions, negative emotions, perceived value and satisfaction; verify the impacts of the price on perceived value and satisfaction; examine the impacts of satisfaction on WOM and eWOM; and test the moderating effect of hotel guests' behavioural engagement on social networking sites (HGBE-SNS) on the relationship between satisfaction and eWOM. Design/methodology/approach - This survey included 371 guests who assessed their experiences at three Brazilian hotels. Structural equation modelling tested the hypothetical model supported by the stimulus-organism-response (S-O-R) theory (Mehrabian and Russell, 1974). Findings - The quality perceived by hotel guests (stimulus) positively impacts perceived value, positive emotions and satisfaction and negatively affects negative emotions (organism). Price (stimulus) negatively impacts perceived value but does not affect satisfaction. Perceived value positively impacts satisfaction. Satisfaction positively impacts WOM and eWOM (responses). The HGBE-SNS moderates the relationship between satisfaction and eWOM. Originality/value - To the best of the authors' knowledge, this study is the first that simultaneously demonstrates the relationships between perceived quality, price, perceived value, positive and negative emotions, satisfaction, WOM, eWOM and HGBE-SNS. Hotels must offer their guests high-quality services to positively impact' perceived value, positive emotions, satisfaction and WOM. Low prices boost the perceived value but do not directly increase guest satisfaction. Satisfied hotel guests share their experiences via WOM, but high HGBE-SNS is crucial to boost eWOM.
- Emotional, cognitive and behavioural repercussions of hotel guests' experiencesPublication . Souki, Gustavo; Oliveira, Alessandro Silva de; Barcelos, Marco Túlio Correa; da Costa Mendes, Júlio; Martins Guerreiro, Maria Manuela; Moura, Luiz Rodrigo CunhaPurpose - Hotels offer high-quality guest experiences to positively impact their emotions, satisfaction, perceived value, word-of-mouth (WOM) and electronic word-of-mouth (eWOM). This study aims to investigate the impacts of the quality perceived by hotel guests on their positive emotions, negative emotions, perceived value and satisfaction; verify the impacts of the price on perceived value and satisfaction; examine the impacts of satisfaction on WOM and eWOM; and test the moderating effect of hotel guests' behavioural engagement on social networking sites (HGBE-SNS) on the relationship between satisfaction and eWOM. Design/methodology/approach - This survey included 371 guests who assessed their experiences at three Brazilian hotels. Structural equation modelling tested the hypothetical model supported by the stimulus-organism-response (S-O-R) theory (Mehrabian and Russell, 1974). Findings - The quality perceived by hotel guests (stimulus) positively impacts perceived value, positive emotions and satisfaction and negatively affects negative emotions (organism). Price (stimulus) negatively impacts perceived value but does not affect satisfaction. Perceived value positively impacts satisfaction. Satisfaction positively impacts WOM and eWOM (responses). The HGBE-SNS moderates the relationship between satisfaction and eWOM. Originality/value - To the best of the authors' knowledge, this study is the first that simultaneously demonstrates the relationships between perceived quality, price, perceived value, positive and negative emotions, satisfaction, WOM, eWOM and HGBE-SNS. Hotels must offer their guests high-quality services to positively impact' perceived value, positive emotions, satisfaction and WOM. Low prices boost the perceived value but do not directly increase guest satisfaction. Satisfied hotel guests share their experiences via WOM, but high HGBE-SNS is crucial to boost eWOM.