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.
- Actions to inhibit environmental impacts on clandestine landfills in the AmazonPublication . Oliveira, Maria do Perpétuo Socorro Lamego; Oliveira, Evailton Arantes de; Fonseca, AnaThis research studies the negative environmental impacts of clandestine landfills in the Amazon, caused by the illegal disposal of construction waste. In the city of Manaus, located in the center of the Amazon, Brazil, there is a public landfill comprising a solid waste collection complex with an area of 660,000.00 m2. In 2018, this landfill received approximately 932,927.00 t of solid urban waste, an average of 2,537.20 t/day. Unfortunately, less than 1% of this waste was destined for valorization (0.92% were for composting, and 0.05% were recycled). This legalized public landfill does not accept the disposal of construction and demolition waste, claiming the decrease in the lifetime of the landfill. However, this regional public policy prohibiting the disposal of construction and demolition waste in public landfills favors the use of clandestine landfills with harmful effects on the environment of the Amazon. This research presents proposals for actions to validate a mobile phone application with the authorities responsible for the Manaus landfill for recycling construction waste, with the aim of stimulating the circular economy and inhibiting the negative environmental impacts of illegal clandestine landfills.
- An assessment of priorities in handling climate change impacts on infrastructuresPublication . Leal Filho, Walter; Abeldaño Zuñiga, Roberto Ariel; Sierra, Javier; Dinis, Maria Alzira Pimenta; Corazza, Laura; Nagy, Gustavo J.; Aina, Yusuf A.Climate change (CC) will likely significantly impact the world’s infrastructure significantly. Rising temperatures, increased precipitation, and rising sea levels are all likely to stress critical infrastructures (CI). Rising temperatures can lead to infrastructure damage from extreme heat events. This can cause roads and bridges to buckle or crack, leading to costly repairs and potential traffic disruptions. In addition, heat waves can damage vital electrical infrastructure, leading to widespread power outages. In light of this context, this article reports on a study which examined the connections and impacts of CC on infrastructure. The study employed a mixed-method approach, combining bibliometric analysis for the period 1997–2022 with a series of relevant case studies from the five continents to offer insight into the impact of CC on infrastructure. The article fills a research gap in respect of assessments of the extent to which climate change (CC) negative influences the infrastructure, with a special focus on developing countries. It also showcases CI projects and adaptation measures being currently deployed, to address CC. The results show that the current infrastructure is vulnerable to CC. The selected case studies on CI adaptation show that in developing and industrialised countries, there is a perceived need to understand better the connections and potential impacts of CC on critical areas such as transport, settlements, and coastal infrastructure. In order to protect infrastructure from CC impacts, governments need to invest in measures such as flood control, early warning systems, and improved building codes. Additionally, they need to work to reduce greenhouse gas emissions more actively, which are the primary cause of CC.
- Analysis of the effectiveness of the NEC Directive on the tropospheric ozone levels in PortugalPublication . Barros, Nelson; Fontes, Tânia; Silva, M.P.; Manso, M. Conceição; Carvalho, A.C.The National Emission Ceilings Directive 2001/81/CE (NEC Directive) was adopted in the European Community in 2001 and went through a revision process in 2005. One of its main objectives is to improve the protection of the environment and human health against the risks of adverse effects from ground-level ozone, moving towards the long-term objective of not exceeding critical levels proved to effectively protect the populations and ecosystems. Considering such objectives, national emission ceilings were established imposing the years 2010 and 2020 as benchmarks. Ten years later, what was the effectiveness of this Directive concerning the control of tropospheric ozone levels in Portugal? In order to answer the previous question, annual ozone precursors' emissions (NOx, NMVOC) and annual atmospheric concentrations (NOx and O3) were analyzed between 1990 and 2011. The background concentrations were assessed in each environment type of air quality station (urban, suburban and rural) through their annual mean ozone concentration and the hourly information threshold exceedances (episodic peak levels). To evaluate the statistical differences in the inter-annual episodic peak levels, a Peak Ozone Index (POIx) was defined and calculated. The results show that, despite the achievement on the emissions NEC Directive goals, associated to the reduction of ozone precursors' emissions, and the decrease of ozone episodic peak levels, the mean tropospheric ozone concentrations significantly increased between 2003 and 2007 (p < 0.05) although the number of exceedances to the information threshold (180 mg m3 ) has decreased. During the period of 1990e2000, before the implementation of the NEC Directive, the mean ozone values were 25% lower in rural stations, 26% in urban stations and 12% in suburban stations, demonstrating that the NEC policy based on NOx and NMVOCs emissions reduction does not lead to an effective overall reduction of ozone concentrations considering the reduction on these pollutants independently. Indeed, the mesoscale ozone production and/or the long range advection may play also an important role as the analysis of Mace Head ozone concentrations suggests. Above all, and due to its non-linear interactions in the ozone chemical balance, the NEC directive should impose emissions' reduction respecting the NOx/NMVOC ratio instead of consider it as a mere guideline value. The mesoscale photochemical ozone production should be carefully analyzed under the new policies, namely in coastal countries like Portugal where the mesoscale circulations play a crucial role in this type of phenomena.
- Application of the bootstrap method in low-sampled Upper Miocene sandstone hydrocarbon reservoirs: a case studyPublication . Ivšinović, Josip; Dinis, Maria Alzira Pimenta; Malvić, Tomislav; Pleše, DubravkaWithin the field of geological analysis of subsurface data, some input may be scarce and include a small set of data. Such a data set is under-sampled and mapping algorithms result in uncertain outcomes. It then becomes necessary to obtain a reliable statistical data set of individual geological variables. The possibility of applying the bootstrap method on variables that are relevant in the exploitation and production of hydrocarbons, specifically the porosity and total cost of disposal formation water variables, was analyzed. The case study was carried out on the data of reservoir “K”, field “B” located in the Western Sava Depression, Northern Croatia. The results highlight the appropriateness of applying the bootstrap method as a tool for defining uncertainty intervals on each sampled location. It is also dependent on resampling data set sizes, which is shown in three examples. The determination of uncertainty intervals for both studied variables gives crucial information for future development projects involving mature hydrocarbon reservoirs, and can be further applied in all similar Upper Miocene proven sandstone reservoirs in Northern Croatia. The porosity of the “K” reservoir is 0.2182 to 0.2506 at a resampling size of 2000, while the cost of disposal formation water value for field “B” is 2.31 to 2.69 USD/m3 at a resampling size of 1000.
- Applied terminology in geodiversity and geotourism activity: a sustainable conceptual exercisePublication . Veras, Ana Sibelonia Saldanha; Barros, Nelson; Dinis, Maria Alzira PimentaObjective: Promoting environmental geoconservation, geodiversity and local culture, namely through tours and research on these natural environments. Theoretical Framework:t is based on modern scientific definitions used in geology, geomorphology, paleontology, culture, and for educational and geotourism purposes. Method: The literature review significantly contextualizes knowledge and broad understanding, as well as advances in the terminology most used in geotourism activity, adopted in Brazil and European references in the area.It is representativeness: relational: the suitability of the geosite to illustrate a geological process or quality, which contributes significantly to the understanding of the theme, process, characteristic or (i) representation: geological context, (ii) integrity: related to the state of conservation of the geosite, (iii) rarity: number of geosites in the geological study area, (iv) scientific knowledge. Results and Discussion:The results obtained revealed that review studies of specialized terminology applied in geodiversity and geotourism activity play a significant role in interpreting unique places where most geosites occur, attracting tourists who are increasingly surprised by geosites. Research Implications: The implications of geosite terminology do not involve universal consensus, and there are several ways to scientifically describe a geosite in the context of a type of terrestrial relief, geological structure and minerals. This interpretation shouldbe carried out by a specialist or by experienced people who are knowledgeable about the local specificities. Originality/Value: This study contributes to the literature by addressing the terminology applied in geoscience that encompasses geodiversity andgeotourism. The relevance and potential of geosites for education, scientific interpretation of geological characteristics in the central region of the North Amazon.
- Artificial intelligence and climate change: the potential roles of foundation modelsPublication . Leal Filho, Walter; Kovaleva, Marina; Ng, Artie; Nagy, Gustavo; Luetz, Johannes; Dinis, Maria Alzira PimentaArtificial intelligence (AI) is being developed fast and applied in several areas including education and healthcare with excellent potential for use in fields that require complex analytics, particularly in the case of climate change. Recent developments in AI, such as ChatGPT and OpenAI, machine vision technologies and deep learning, among others, may be deployed in various contexts, including climate change. Of specific interest is the role played by foundation models (FMs), which may help to augment intelligence on climate change and reduce the social risks of adaptation and mitigation initiatives. This article discusses the potential applications of FMs in climate change research and management and illustrates the need for further studies. FMs, built on large unlabelled data sets and enabled by transfer learning, offer versatility in handling complex tasks. Specifically, FMs can aid in climate data analysis, modelling future scenarios, assessing risks, and supporting decision-making processes. Despite their potential, challenges such as data privacy, algorithm bias, and energy consumption require careful consideration. The article emphasizes the importance of interdisciplinary efforts to address these challenges and maximize the positive impact of FMs in mitigation and adaptation. AI, including advanced models like FMs, holds significant promise for addressing climate change challenges.
- Assessing climate change and health provisions among staff in higher education institutions: a preliminary investigationPublication . Leal Filho, Walter; Dinis, Maria Alzira Pimenta; Lange Salvia, Amanda; Sierra, Javier; Vasconcelos, Helena; Henderson-Wilson, Claire; Diatta, Samo; Kumar, T. V. Lakshmi; Meirelles, Maria Gabriela; Carvalho, FernandaClimate change can have direct and indirect effects on human health. Direct effects can include an increase in extreme weather events, such as heatwaves and floods, as well as an increase in the spread of vector-borne and infectious diseases, which may lead to a set of health problems and diseases. Indirect effects can include changes in air quality, water availability, and food production and distribution. These changes can lead to an increase in respiratory problems, malnutrition, and increased food insecurity. There is a perceived need to investigate the extent to which Higher Education Institutions (HEIs) are engaged in efforts to foster a greater understanding of the connections between climate change and health. In this context, this preliminary investigation offers an overview of the relationships between climate change and health. By means of a survey among teaching staff and researchers at HEIs from 42 countries across all continents working on the connection between climate change and health. The study has investigated the extent to which current provisions for education and training on the connection between climate change and health are being considered and how current needs in terms of policy development, research, and training are being met. A series of case studies illustrate how universities worldwide are actively developing strategies and implementing measures to address climate change and health. The study concludes by providing specific recommendations aimed at facilitating the handling of issues related to climate change and health in a higher education context.
- Assessing the impacts of sustainability teaching at higher education institutionsPublication . Leal Filho, Walter; Trevisan, Laís Viera; Sivapalan, Subarna; Mazhar, Muhammad; Kounani, Aristea; Mbah, Marcellus Forh; Abubakar, Ismaila Rimi; Matandirotya, Newton R.; Dinis, Maria Alzira Pimenta; Borsari, Bruno; Abzug, RikkiThe necessity of sustainability teaching (ST) has recently become increasingly crucial due to several interrelated factors. The world faces significant environmental challenges, such as climate change, biodiversity loss, deforestation, pollution, and resource depletion. ST equips students with the knowledge and tools to address these issues and work towards a more sustainable future. ST helps students understand these complex challenges and fosters holistic problem-solving skills. ST at higher education institutions (HEIs) can take place in various modalities, including lectures, hands-on projects, field trips, simulations, and collaborative learning to enhance knowledge and develop competencies. The impact of ST at HEIs may be measured through multiple avenues, such as student surveys, interviews with faculty, and research studies on the effectiveness of sustainability courses. This paper reports on a study that assessed the current impact of ST at HEIs. The data collection used a multi-methods approach, which included a bibliometric analysis, the assessment of a set of case studies, and an international survey conducted with teaching staff from HEIs in 38 countries. The evidence supporting ST is presented and discussed, indicating how current teaching programmes are being delivered and their degree of success. The results show that the literature on ST has evolved substantially over the past years and covers a wide range of areas, as demonstrated by the various clusters. The case studies, in turn, show multiple real-world examples of how HEIs across diverse geographic regions have implemented ST practices and their implications. The paper’s novelty lies in its approach to evaluating sustainability education’s effectiveness and broader impacts on HEIs. It offers a unique approach by integrating assessments across multiple disciplines, showing how ST impacts students´ education. Also, the study tracks the impacts of the sustainability literature, providing insights into how sustainability education shapes students’ professional prospects. Finally, the paper shows the status of sustainability education across different HEIs and countries, offering a broader perspective on how it is implemented into practice. The study concludes by suggesting measures that may maximize the impact of sustainability courses in HEIs curricula and, among other things, the overall campus culture toward sustainable development.
- Assessing the provisions for sustainability in economics degree programmesPublication . Leal Filho, Walter; Dinis, Maria Alzira Pimenta; Morales, Maria F.; Semitiel-García, María; Noguera-Méndez, Pedro; Ruiz de Maya, Salvador; Alarcón-del-Amo, María-del-Carmen; Esteban-Lloret, Nuria; Pemartín, MaríaPurpose Higher education institutions (HEIs) offer courses and programmes focusing on sustainability in economics, as courses on sustainable development (SD), which examine the economic, social and environmental dimensions of SD. This paper aims to examine sustainability integration in economics degree programmes. Design/methodology/approach Through an extensive literature review in Web of Science (WoS) and information search in Google, conducting to 28 relevant case studies, this paper elucidates the emphasis given to sustainability as part of economics degree programmes in HEIs. Findings The results suggest that, whereas the inclusion of sustainability components in this field is a growing trend, much still needs to be done to ensure that matters related to SD are part of the routine of university students studying economics. Research limitations/implications It is worth noting that the literature review conducted in WoS was primarily aimed at assisting in the selection of university case studies. The 28 university case studies scrutinised in this study may lack sufficient representation from numerous developing countries. Practical implications This study highlights challenges in integrating the SD into economics degree programmes, suggesting the need for curriculum adjustments as underscoring operational issues, acting as barriers. The inclusion of sustainability in economics programmes must navigate operational issues stemming from packed timetables and busy schedules, requiring innovative solutions. Social implications As far as the authors are aware, this study holds substantial importance in its emphasis on implementing sustainability within HEIs’ economics programmes, assisting in pursuing SD. Originality/value The novelty of this study lies in addressing sustainability with the specific economics focus programmes within the HEIs context.