Biblioteca Digital do IPB
Publications Repository of the Polytechnic Institute of Bragança
Recent Submissions
Peer-to-peer energy trading strategies for decentralized residential energy systems
Publication . Borges, Paulo Ricardo Mesquita; Ferreira, Angela P.; Pereira, Maria João
This work investigates peer-to-peer (P2P) energy trading within residential local energy markets (LEMs) assessing how decentralized bilateral matching mechanisms can increase renewable self-consumption, reduce reliance on the upstream grid, and affect distributional and network outcomes. Two bilateral matching strategies are formalized and implemented: a time-varying Supply–Demand Matching strategy (ST1), which privileges temporal complementarity between surplus and deficit, and a time-invariant Distance-Based Matching strategy (ST2), which privileges geographically proximate trades to reduce distribution losses. Both strategies are embedded in a decentralized market-clearing framework solved via the Alternating Direction Method of Multipliers (ADMM) and implemented in Python using CVXPY with the SCS solver. Experiments are conducted on a synthetic community of ten households derived from real household generation and load data, including photovoltaic and wind profiles.
Simulation results show that both ST1 and ST2 materially decrease community grid imports and overall procurement costs compared with the baseline, while producing distinct trade-offs. ST1 attains higher adaptability to temporal variability and delivers greater economic savings and improved renewable utilization in scenarios with pronounced intermittency, at the expense of increased computational and coordination complexity and less stable pairing patterns. ST2 yields more stable, locality-constrained exchanges that tend to reduce distribution losses and operational complexity, though with reduced responsiveness to dynamic supply–demand fluctuations. Sensitivity analyses (varying grid tariffs and local generation capacity) indicate that the relative benefits of P2P trading are amplified under higher grid prices and greater local renewable penetration. The findings provide empirical guidance for the design of scalable, equitable, and technically robust P2P mechanisms and inform policy and DSO considerations for integrating local markets into existing distribution systems.
Funcionalidade familiar e qualidade de vida do idoso frágil atendidos em um centro de referência
Publication . Palma, Paulo Donizetti; Lanza, Fernanda Moura; Brás, Manuel Alberto
funcionalidade familiar exerce papel fundamental no bem-estar de idosos frágeis, especialmente em contextos
de maior vulnerabilidade. Por isso, a qualidade de vida desse público pode ser significativamente influenciada pelo suporte e
dinâmica familiar. Objetivo: analisar a funcionalidade familiar e a qualidade de vida de idosos frágeis atendidos em um centro
de referência. Material e Métodos: trata-se de um estudo transversal descritivo com uma amostra não probabilística por
conveniência de idosos frágeis acompanhados pelo Centro de Referência do Idoso do município de Campinas, São Paulo, Brasil.
A coleta de dados ocorreu nos meses de setembro e outubro de 2024 e foram utilizados o questionário sociodemográfico,
o questionário APGAR Familiar e de qualidade de vida SF-36. Os dados foram tabulados e analisados no software SPSS
conforme a natureza das variáveis. Resultados: Participaram 70 idosos, a maioria do sexo feminino (n=49), casados (n=43),
aposentados (n=52), com renda entre dois a três salários mínimos (n=48), e com idade média de 72,1 anos (±7,5). Em relação
à funcionalidade familiar, a maioria dos participantes possuem alta funcionalidade familiar (81,4%, n= 57). Na avaliação dos
domínios de qualidade de vida, as pontuações totais variaram de 41,8 a 59,6. A maior pontuação foi obtida no domínio aspectos
sociais (59,6±18,1), seguido do estado geral de saúde (59,0±19,3), saúde mental (54,0±14,0) e vitalidade (50,9±12,6)
apresentaram um menor comprometimento. Os domínios aspectos emocionais (49,0±45,3), dor (45,9±28,5), capacidade
funcional (43,3±36,2) e, por último, aspectos físicos (41,8±34,0) obtiveram um maior comprometimento na qualidade de vida.
Conclusão: a maioria dos idosos frágeis atendidos no Centro de Referência apresenta boa funcionalidade familiar, o que pode
contribuir positivamente para alguns domínios da qualidade de vida. No entanto, aspectos físicos, funcionais e emocionais ainda
se mostram comprometidos, indicando a necessidade de intervenções interdisciplinares que promovam um cuidado integral e
direcionado às demandas específicas desse grupo.
Habitação e financiamento: Avaliação de programas públicos em territórios de baixa densidade
Publication . Jesus, Carla; Nogueira, Sónia P.; Bittencourt, Bernadete de Lourdes; Fernandes, Tiago; Mercereau, Jean; Bittencourt, Bernadete; Mesquita, Cristina; Martins, Márcio Ribeiro
As políticas públicas de habitação, enquanto ciência social, possibilitam que o governo atue para colmatar carências habitacionais, desenvolvendo ações de cariz social que apoiem os cidadãos e permitam a sua inclusão na sociedade com direito a condições dignas. O direito à habitação enquanto direito legalmente consagrado deve ser assegurado e promovido a todos os cidadãos.
A thematic literature review on politicians’ use of financial and non-financial information: Insights and future directions
Publication . Jorge, Susana; Silva, Adriana; Nogueira, Sónia P.
This article provides a qualitative overview of literature on politicians’ use of financial and non-financial information over recent decades. Key themes include performance management, accountability, usability, and political decision-making and governance. While research has advanced in understanding how politicians use such data, gaps remain. Under-explored areas include trust in information, financial literacy among politicians, the impact of information design and presentation, and the growing influence of digital technologies and real-time data access on financial and non-financial information use by politicians. © 2025 Informa UK Limited, trading as Taylor & Francis Group.
Learning in complexity: perspective of health sciences students after intensive and immersive training program
Publication . Delgado, Jane; Lachovicz, Rebeca; Pereira, Fernando A.; Almeida-de-Souza, Juliana; Ferro-Lebres, Vera
This chapter presents the results of a qualitative study carried out as part of the European project ECOLAH - Embracing a Complexity-Oriented Learning Approach in Health, which evaluated the health student’s perspective an intensive, immersive and co-creation training programme. The programme took place in April 2024 in The Netherlands, involving 46 students and 15 professors from five European countries. The training was structured around four interdependent thematic modules: Complex Adaptive Systems, Futures and Epistemic Literacy, Becoming in Complexity and Holding and Facilitating Environment. Data was collected using questionnaires, written reflections and observations, and analysed using qualitative methodology. The results indicate relevant transformations in the pedagogical development of competences such as empathy, critical thinking, self-reflection, self-care and collaboration. Experiential learning in an immersive environment, combined with the co-creation of content and practices, proved to be a catalyst for future literacy and transformative education. It is concluded that complexity-oriented pedagogical approaches can contribute to the training of health professionals who are more resilient, ethical and prepared to act in uncertain and dynamic contexts.