Gestão e Economia / Management and Economy
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Percorrer Gestão e Economia / Management and Economy por Domínios Científicos e Tecnológicos (FOS) "Ciências Sociais::Economia e Gestão"
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- Cadeia de abastecimento: conceitos contemporâneos, integração e desafios atuaisPublication . Negas, Mário CarrilhoA Cadeia de Abastecimento é abordada como um sistema estratégico, integrado e colaborativo, essencial para a competitividade das organizações contemporâneas. O texto aborda a evolução do conceito de cadeia de abastecimento, destacando a transição de uma perspetiva centrada na eficiência operacional para uma abordagem orientada para a criação de valor. São discutidos os papéis da integração e da colaboração entre os diferentes intervenientes, bem como os impactos da globalização, do risco e da incerteza. O documento explora ainda a relevância da resiliência, da filosofia Lean e da ambidestria operacional, sublinhando a necessidade de equilibrar eficiência e flexibilidade. Por fim, destaca-se a sustentabilidade como dimensão central da gestão moderna da cadeia de abastecimento.
- Enhancing higher education with artificial intelligence: implementing and assessing a chatbot in a business information systems coursePublication . Isaias, Pedro; Hoque, Tania Tanzin; Miranda, Paula; Sampson, Demetrios; Isaías, Pedro; Ifenthaler, DirkThe higher education sector is continuously searching for innovative technologies that can assist both lecturers and students to be prolific. The deployment of artificial intelligence in educational settings can assume a panoply of forms. Chatbots are a valuable example of the deployment of artificial intelligence in higher education, as they become increasingly popular in other areas of society. As with any innovative technology, the use of chatbots, in higher education, requires extensive research and careful consideration of their pedagogical value. The lessons learned from lecturers who experiment with chatbots can constitute important evidence to support their use. This paper presents a chatbot specifically designed for a higher education course, named RESOURCEbot, its mechanics and workflows. This chatbot was used in a university course to assist the students with recommendations of relevant research papers. It is also presented the chatbot’s evaluation. The evaluation of the RESOURCEbot derived from a questionnaire that was distributed among the students to assess their opinions about the experience of using a chatbot, its performance and their intention to use chatbots in educational settings. The results highlighted some of RESOURCEbot’s limitations, such as some difficulty in understanding the students’ prompts, but overall, they reflected the students’ positive opinions concerning its ease of use, and the value and pertinence of its recommendations.
- Estudo de caso pedagógico: Amazon — Fulfillment, última milha e desenho da rede de distribuiçãoPublication . Negas, Mário CarrilhoEste estudo de caso analisa a Amazon como referência na gestão logística do comércio eletrónico B2C, com foco no fulfillment, na última milha e no desenho da rede de distribuição. O texto explora a forma como a integração entre tecnologia, automação e planeamento da cadeia de abastecimento permite elevados níveis de eficiência operacional e rapidez de entrega. São analisadas as práticas de gestão de inventário, a utilização de centros de fulfillment automatizados e a adoção de modelos híbridos Just in Time e Just in Case. O estudo aborda ainda as inovações na última milha, incluindo micro-fulfillment centers, pontos de recolha e soluções sustentáveis, evidenciando os trade-offs entre custo, serviço, resiliência e sustentabilidade.
- Evolução dos transportes na cadeia de abastecimento: tecnologia, globalização e sustentabilidadePublication . Negas, Mário CarrilhoÉ analisa a evolução do papel dos transportes na Cadeia de Abastecimento, evidenciando a transição de uma função predominantemente operacional para uma função estratégica. O texto aborda o impacto da digitalização e de tecnologias como IoT, Big Data e Inteligência Artificial na visibilidade, eficiência e resiliência dos sistemas de transporte. Analisa-se ainda o efeito da globalização e do alongamento das cadeias, destacando o aumento da complexidade e do risco logístico. São discutidos os contributos da multimodalidade e da intermodalidade para a eficiência e sustentabilidade, bem como os principais trade-offs entre custo, tempo, sustentabilidade e terceirização.
- Generation Z and smart cities: a bibliometric exploration of their contribution to urban sustainabilityPublication . Negas, Mário Carrilho; MárioThis presentation examines how Generation Z is addressed in the scientific literature at the intersection of smart cities and urban sustainability. Through a critical review of recent research, it identifies recurring themes and dominant approaches that frame Generation Z both as a driver of innovation and as a critical social actor within contemporary urban transformations. The literature highlights Generation Z’s advanced digital skills and technological fluency as key enablers of eco-efficient urban practices and data-driven sustainability initiatives. At the same time, strong emphasis is placed on participatory, co-creation, and bottom-up approaches, positioning young people as active contributors to the design, governance, and evaluation of smart city strategies. Beyond this optimistic framing, the analysis also reveals a growing body of critical scholarship that problematizes smart city technologies when they reinforce social inequalities, exclude marginalized voices, or lack ethical and democratic grounding. Overall, the presentation argues that Generation Z is increasingly represented not only as a beneficiary or user of smart city technologies, but as an engaged and reflexive social group capable of both shaping and contesting prevailing models of urban sustainability.
- How will it blend?: design considerations for blended learning in higher educationPublication . Miranda, Paula; Isaías, Pedro; Pífano, Sara; Auer, Michael E.; Rüütmann, TiiaWithin the higher education sector, blended learning strategies succeed largely because of their promise to deliver the best of both worlds to students: face-to-face education and online learning. The implementation of blended learning in courses and programmes is commonly associated with an enhanced student expe-rience resulting from broader access to learning resources, improved interactivity and cooperation, increased participation and motivation, and increased control of students’ own learning. This paper presents a design model that can assist in the development, implementation and evaluation of blended learning courses. The model is supported by a review of the literature and a multiple case study analysis of three higher education courses, in Australia. The design model is composed of six core elements: early planning and clear communication, in-class active learning, appropriate online technology selection, engaging online content and activities, student online and in-class assessment, and multi-layered course evaluation.
- Implementation and evaluation of a chatbot in a business course in higher educationPublication . Isaías, Pedro; Hoque, Tania Tanzin; Miranda, PaulaWhile the higher education sector is continuously searching for innovative technologies, the use of chatbots requires extensive research and careful consideration of their pedagogical value. The lessons learned from lecturers who experiment with chatbots can constitute important evidence to support their use. This paper presents a chatbot specifically designed for a Higher Education course, named RESOURCEbot, its mechanics and workflows. This chatbot was used in a university course to assist the students with recommendations of relevant research papers. It is also presented the chatbot´s evaluation. The evaluation of the RESOURCEbot derived from a questionnaire that was distributed among the students to assess their opinions about the experience of using a chatbot, its performance and their intention to use chatbots in educational settings. The results highlighted some of RESOURCEbot’s limitations, such as some difficulty in understanding the students’ prompts, but overall they reflected the students’ positive opinions concerning its ease of use, and the value and pertinence of its recommendations.
- Integrating digitization and plastic credits: dual levers for advancing the circular economyPublication . Negas, Mário Carrilho; Filipa Reis Carvalho SeiçaThis study explores the role of digitalization as a key enabler of circular economy models, with a particular focus on plastic credits as an emerging environmental and economic instrument. It analyzes how digital technologies—such as blockchain, artificial intelligence, IoT, and Big Data—enhance transparency, traceability, and efficiency in waste management and certification systems. Using a qualitative methodology based on document analysis and a case study of the Portuguese startup C-Plastic operating in Lusophone countries, the research examines the social, environmental, and economic impacts of digitally certified plastic credits. The study highlights both the benefits and challenges of these models, including regulatory gaps, risks of greenwashing, and the inclusion of informal recyclers. It concludes that while digitalization and plastic credits offer significant opportunities for inclusive and sustainable growth, their transformative potential depends on clear regulation, international standards, and coordinated global commitment.
- Learn, earn, and game on: integrated reward mechanism between educational and recreational gamesPublication . Tarigan, Jos Timanta; Zendrato, Niskarto; Isaías, Pedro; kommers, PietRewards play a key role in gamifying education, especially when learners perceive them as valuable. However, in many educational games, rewards often lack a meaningful impact or long-term appeal, which limits their ability to motivate user performance effectively. This study introduces a novel integrated reward system designed to increase the perceived value of educational rewards by allowing them to be used in a separate recreational game. The system was implemented using two Android-based applications: EduGym, a microlearning quiz-based educational game, and EduShooter, a top-down action shooter recreational game. Coins earned in EduGym quizzes can be used to upgrade characters and unlock content in EduShooter, forming a cross-game incentive. A user study involving 48 participants demonstrated that those with access to the integrated system responded more positively to EduGym’s reward mechanism and rated their overall game experience favorably. The reward system also enhanced learners’ perception of their educational achievements by linking them to meaningful in-game benefits. These findings suggest that integrating educational and entertainment games through a cross-game currency system can significantly strengthen the motivational appeal and perceived value of rewards in these games.
- Planeamento da cadeia de abastecimento: integração entre sistemas estratégicos e operacionaisPublication . Negas, Mário CarrilhoÉ abordado o planeamento da Cadeia de Abastecimento como um processo integrado que articula decisões estratégicas e operacionais. É referida a arquitetura dos sistemas de planeamento, destacando o papel do Sistema de Gestão e da Estratégia Agregada na definição de orientações de médio e longo prazo. É aprofundada a função dos sistemas ERP como elemento central de integração da informação entre áreas funcionais, assegurando coerência entre planeamento e execução. É ainda abordado o papel das aplicações operacionais na resposta às flutuações da procura e sublinha a importância da integração sistémica para melhorar o desempenho, a flexibilidade e a resiliência da cadeia de abastecimento em contextos de elevada complexidade e incerteza.