FCT (DCEA) - Artigos em Revistas Científicas Internacionais com Arbitragem Científica
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- The 15-minute city in Porto, Portugal: accessibility for the elderlyPublication . Guerreiro, Maria; Dinis, Maria Alzira Pimenta; Sucena, Sara; Pereira, Madalena Sofia Araujo; Silva, Isabel; Ferreira, Diogo; Silva Moreira, RuiThe concept of the 15-Minute City aims to enhance urban accessibility by ensuring that essential services are within a short walking distance. This study evaluates the accessibility of Porto, Portugal, particularly for the elderly, by assessing urban density, permeability, and walkability, with a specific focus on crossings and ramps. A five-step methodology was employed, including spatial analysis using QGIS and Place Syntax Tool, proximity assessments, and an in-situ survey of crossings and ramps in the CHP. The results indicate that while the city of Porto offers a dense and walkable urban environment, significant accessibility challenges remain due to inadequate ramp distribution. The data collection identified 80 crossings, of which only 60 were listed in OpenStreetMap, highlighting data inconsistencies. Additionally, 18 crossings lacked curb ramps, posing mobility barriers for elderly residents. These findings highlight the need of infrastructure improvements to support inclusive urban mobility. The study also proposes an automated method to enhance ramp data collection for broader applications. Addressing these gaps is crucial for achieving the equity and sustainability goals of the 15-Minute City model, ensuring that aging populations can navigate urban spaces safely and efficiently.
- Building a resilient world: the contribution of architecture curricula to sustainable developmentPublication . Leal Filho, Walter; Albrecht, Clarissa Ferreira; Lange Salvia, Amanda; Frandoloso, Marcos Antonio Leite; Henrique, João Paulino Pires Eustachio; Haddrell, Carl; Iyer-Raniga, Usha; Dinis, Maria Alzira Pimenta; Borsari, Bruno; Diaz-Sarachaga, Jose Manuel; Emadeldin, YasminPurpose: The design of buildings and urban areas holds immense potential to shape sustainability, encompassing considerations of material usage, energy efficiency and environmental impacts throughout construction and life cycle. Architects play a pivotal role in this endeavour. In the evolving landscape of architectural education, there remains a significant gap in understanding the full scope of its potential and challenges. This study aims to explore the role of higher education institutions and explores the extent to which architecture curricula contribute to sustainable development. Design/methodology/approach: The study used an online survey, designed around sustainability frameworks to assess how architecture curricula incorporate sustainability. It gathered 110 responses from 30 countries, with data analysed using non-parametric tests (Kruskal–Wallis and Mann–Whitney U test) to examine country-level differences and barriers to integrating sustainability. Findings: The findings reveal a prevalent consideration of sustainability in curricula, with a notable emphasis on environmental dimensions, closely followed by social and economic aspects. However, challenges persist, notably the lack of sustainability training for educators and limited time allocation for integrating sustainability components into educational programmes. Originality/value: This study’s novelty lies in its comprehensive investigation into the emphasis placed on sustainability within architecture education. It offers original insights collected from diverse universities worldwide through the documentation of trends observed across 30 countries, providing valuable insights on the training landscape for architects and paving the way for informed strategies to enhance sustainability integration in architectural curricula and practice.
- Sustainable generative AI and quantum computing: review assessment on the environmental impact of generative AI and quantum technologiesPublication . Esho, Esther Oreofeoluwa; Akinyelu, Andronicus Ayobami; Dinis, Maria Alzira PimentaThe rapid advancement of Generative Artificial Intelligence (GenAI) and Quantum Computing (QC) presents transformative opportunities, yet their high computational requirements raise concerns about their environmental sustainability. This comprehensive review examines the ecological footprint of both technologies, focusing on key metrics like energy consumption, carbon emissions, and resource depletion. Findings from existing studies consistently indicate that the impact of GenAI is mostly driven by the immense energy demands of large-scale model training and inference. Moreover, findings from the review reveal that the footprint of QC largely stems from the energy-intensive cryogenic cooling and rare material requirements of its specialized hardware. This paper benchmarks current approaches to environmental assessment, highlighting the important role of Life Cycle Assessment (LCA) in providing a holistic view of the classification of environmental impacts across the entire supply chain, from manufacturing to disposal. This study proposes a range of domain-specific mitigation strategies, including algorithmic optimizations like pruning and distillation for AI, and cryogenic and material sourcing improvements for quantum systems. This study also proposes a framework for proactive, responsible innovation and identifies some gaps in the literature, such as the lack of standardized metrics and transparent reporting. There is a need to embed eco-conscious principles in the design of future technologies and highlight opportunities where these technologies can be used to handle broader climate challenges. The findings in this study can be used by policymakers, researchers, and industry stakeholders in aligning technological progress with global climate and sustainability goals.
- Trajectories of circular economy in cities: key patterns and emerging pathwaysPublication . Aina, Yusuf; Almulhim, Abdulaziz I.; Salami, Babatunde Abiodun; Swart, Julia; Abubakar, Ismaila Rimi; Dinis, Maria Alzira Pimenta; Sharifi, AyyoobUrbanisation and escalating resource pressures have intensified the need for systemic approaches to sustainable development, positioning the circular economy (CE) as a critical framework for cities. This study reviews academic literature to examine current trends, challenges, and forward-looking strategies for CE implementation in urban contexts. Using a search process aligned with the PRISMA protocol, 668 peer-reviewed articles were analysed through inductive content analysis. The findings reveal that CE practices in cities are increasingly shaped by global sustainability agendas, particularly in relation to SDGs 9 to 12. The analysis identifies eight thematic clusters that characterise urban CE pathways: urban planning and the built environment, energy and mobility systems, waste and resource management, water and urban agriculture, citizen engagement, governance and regulation, technological innovation, and socio-cultural transformation. A conceptual framework integrating eight thematic clusters is presented, illustrating how cities transition from linear to circular systems through policy alignment, digital innovation, and multisectoral collaboration. Case studies from global urban centres illustrate strategies ranging from smart infrastructure and circular procurement to social inclusion and localised production, all of which enable CE advancement. These findings reinforce the view of CE as a multidimensional approach capable of fostering urban resilience, environmental stewardship, and inclusive economic growth.