City Of Porto Research Articles

Tackling Social Inequality in the City of Porto, Northern Portugal: Grassroots Horticultural Practices and the Desired City

Grassroots urban horticultural plots (hortas), part of the Porto Metropolitan Area in Northern Portugal, are presented as liminal spaces that hold a richness of community life and a “gift economy.” Often in existence for several decades and encompassing groups of over 20 or 30 people, these informal communities are, nevertheless, not cherished by the instances of city governance that do not stand in the way of the destruction of these low‐income urbanite horticultural communities. The use of de Certeau’s concepts of “strategy” and “tactics” are used to try and explain this incompatibility between these two forms of urban (self) governance that hinders the right to the city by the low‐income urbanites who have created these horticultural grassroots communities.

The Arena Liga Portugal: aiming for SMART design

The new Portuguese Football League headquarters – Arena Liga Portugal – is a high-profile, prestigious project located in the city of Porto. LAIII was presented with a brief to deliver the architectural vision of a 'floating' cube against a challenging programme, incorporating a diverse range of uses, including office space, auditorium, museum, sports hall, and a vast green podium. The result is a striking head office whose structural design, detailing and complexity are masked by the simplicity of its concept. As engineers, we see ourselves as more than just designers. We believe true value can only be delivered if we share common drivers with other stakeholders and work together to create answers that balance our overall goals, to arrive at the most suitable solutions possible. Throughout the design process, our main goal was to ensure we reached a cost-effective solution for Arena Liga Portugal, by balancing design drivers; in particular, we sought to avoid jeopardising the project vision in any way. This mindset was particularly important during the early stages of the design process. At this point, not only are the opportunities to create an impact the greatest, and the ideas the most abundant, but the exploration of these is the most rewarding. The challenge was to find the 'best' design options for the project. The best structural design is something that is very difficult to define and achieve, since every stakeholder has its own definition of 'best'. Some might define it as the most efficient in terms of cost and time/programme, while others judge it in terms of performance or sustainability credentials. There is not a single correct definition. The best solution is the one that gathers the most value among all the stakeholders for a given project. The entire building aims to be a fluid and open space, with strong links to the city and the local community. Arena Liga Portugal HQ will be an urban beacon, visible day and night. Expected to be completed by the end of 2024 as a landmark institutional building that is simultaneously a sports, cultural and leisure facility. it will raise the profile of an area of the city that is sometimes forgotten.

Smoking: Profile of an Elderly Sample in the City of Porto Alegre-RS/Brazil

Objective: The objective of this study is to determine the profile of smokers in a sample of elderly people served by the Family Health Strategy (ESF) in the city of Porto Alegre/RS. Theoretical Framework: Smoking is one of the main risk factors for several chronic diseases, including cardiovascular disease, cancer, chronic obstructive pulmonary disease (COPD) and several other conditions. Although the number of smokers is declining in many countries, the impact of smoking remains a significant public health concern. Method: Cross-sectional study with prospective data collection involving a sample of 567 elderly people. 30 ESF teams from different Health Districts were chosen through a stratified random draw and 36 elderly people were selected from each team. Results and Discussion: The prevalence of smoking was 21.5%, with a higher prevalence in men (26%). Widowed elderly people had less history of smoking (47.8%), as did retired elderly people (54.7%), religious practitioners (50.7%) and those with higher incomes. An increase in prevalence was observed in elderly people who stopped smoking, with an increase in age groups. Research Implications: The research can provide specific data on the profile of elderly smokers in Porto Alegre, allowing public policies to be created or adjusted to more effectively serve this population. Originality/Value: While many studies on smoking focus on younger populations or middle-aged adults, the choice to specifically study smoking among older adults is less common and therefore fills a significant gap in the literature.

Physiology and fertility of two gull species in relation to plastic additives' exposure

Understanding the impact of plastic and its additives on wild species is crucial as their presence in the environment increases. Polybrominated diphenyl ethers (PBDEs), once used as flame retardants, were restricted due to known toxic effects, but are still detected in the environment. Naturally occurring methoxylated PBDEs (MeO-BDEs) can result from PBDE transformation and may cause similar hazardous effects. Yellow-legged gulls (Larus michahellis, YLG) and Audouin's gulls (Ichthyaetus audouinii, AG) are highly susceptible to plastic additives, due to their distribution, trophic position, and behaviour. In this study, we assessed PBDEs and MeO-BDEs uptake in different tissues and their effects on physiological and reproductive parameters. Findings indicate that, apart from annual differences, adult AG accumulated more MeO-BDEs than YLG in a natural breeding habitat (Deserta), while the latter had lower PBDE levels than YLG breeding in the city of Porto. In relation to chicks, only YLG from Deserta showed higher PBDE concentrations than AG chicks. Individual analysis of each physiological parameter revealed impacts only for adult YLG from Deserta, with neurofunction and immune system inhibition at higher MeO-BDE concentrations. For chicks, AG showed impaired neurofunction, while YLG chicks from Porto exhibited potential genotoxicity effects triggered by higher MeO-BDE levels. Overall health analysis showed activation of antioxidant defences and compromised immune system in YLG adults from Porto due to high values of PBDEs, while chicks from Deserta exhibited inflammation and oxidative stress with high concentrations of MeO-BDEs in the same species. Fertility parameters showed significant differences for sperm counts though suggesting individuals may be able to compensate any exposure effects. This study confirms the widespread presence of plastic-associated compounds and their harmful effects on gulls, particularly on neurofunction, immune system, oxidative balance and fertility, especially due to the presence of MeO-BDEs.

Evaluating Attitudes and Preferences towards Walking in Two European Cities

Evaluating Attitudes and Preferences towards Walking in Two European Cities

A data-driven clustering approach for assessing spatiotemporal vulnerability to urban emergencies

Urban vulnerability to emergencies has become a relevant issue as cities get bigger and the negative impacts of climatic changes become more prominent. In recent years, smart city systems devoted to detecting, alerting, and mitigating emergency situations have gained momentum, with different complexities and expected outcomes. Although such systems have become more common, their proper configuration and adoption should rely on a more comprehensive perception of urban vulnerabilities to critical events. This article defines a data-driven approach to numerically evaluate the vulnerability of each region of a city, taking real-world data from open databases as a reference for a proposed clustering-based assessment algorithm. Additionally, the temporal dynamics within a city are modelled through the definition of time frames, each one comprising an associated risk assessment factor based on the expected flow of inhabitants over time. This clustering analysis categorises urban areas with similar vulnerability profiles by modelling the temporal dynamics of urban infrastructure, capturing their fluctuating nature and impact on vulnerability. By leveraging temporal urban perceptions, this approach may contribute to more effective emergency management in urban areas since regions with higher population density may be assumed as more vulnerable to emergencies, potentially supporting the optimisation of smart cities and general urban planning. Experimental results for the Portuguese cities of Porto and Lisbon demonstrate the practical applicability of the proposed approach by accurately identifying regions with higher temporal vulnerability to urban emergencies.

Aplicativos de transporte e equidade: um estudo de acessibilidade em Porto Alegre/RS

Abstract The arrival of ride-hailing apps in Brazil has raised concerns about their negative impacts on urban mobility. However, it was expected that they could serve as a complement to public transport and as a substitute for private cars, theoretically improving urban accessibility and potentially reducing inequalities in urban mobility. This study assessed this hypothesis in the city of Porto Alegre/State of Rio Grande do Sul (RS) and described the access of different socioeconomic groups to the city's main destinations using an accessibility indicator composed of time and monetary cost. Results indicate that ride-hailing apps significantly exacerbate inequality between income groups, particularly for frequent trips. However, they can be a viable option for occasional trips even for low- -income communities.

The Impact of Pollution on Cultural Heritage in the Historic Centre of Porto, Portugal

Pollution is a constant threat to cultural heritage, mainly affecting its constituent materials, and it is urgent to implement mitigation and adaptation measures to prevent pollution. The city of Porto currently has several initiatives that aim to prepare this municipality for climate change adaptation. This article aims to study the impact of pollution on built heritage, as well as the initiatives that are being implemented in the Municipality of Porto (as part of the Portuguese Camino to Santiago) to protect heritage, based on three case studies, namely Carmelitas Church, São João Novo Church, and Vitória Church, contextualising them over time and understanding their structure and materials. The methodology is based on an anomalies survey through local and surrounding photographic records to assess the effects of pollution, following the model developed at Carmo Church in Olinda, Pernambuco. This study’s results showed that the stone facade of Carmelitas Church, which is in a busier area of the city, is much more deteriorated when compared with the other case studies due to the direct impact of pollution.

The role of awareness of circular economy’s concept in purchase of sustainable goods and access-based and collaborative consumption – Porto case

PurposeCircular economy (CE) is receiving increasing worldwide attention as a manner to overcome the challenges linked to current trends of unsustainable energy and resource consumption. This paper aims to fill this gap and analyze the adherence to sustainable, access-based and collaborative consumption practices by exploring the role of CE awareness, specifically in the context of Porto, the second-largest city of Portugal.Design/methodology/approachThe methodology of choice is quantitative, based on partial least square-based structural equation modeling.FindingsThe result shows that there is an influence of CE awareness on subsequent sustainable consumption models.Research limitations/implicationsPresent research contributes to the theory on CE awareness and sustainable consumption. It proposes a model that could be applied in other countries. As this research is developed within the city of Porto, it may limit generalizations of obtained results.Practical implicationsAs CE practices are embodied into national and local policies, this research contributes to understanding local contexts of CE practices dissemination, providing practical suggestions for businesses and policymakers aiming the transition to the CE.Originality/valueAn original approach to measuring the awareness of CE economy is proposed, that is analyzed not only from the familiarity perspective but in six dimensions of its construction: familiarity, importance, perception or interpretation, advantages, social impact and barriers in this process. Further, the conceptual model of the impact that these dimensions have on the adoption of sustainable consumption models (purchase of sustainable products, access-based and collaborative consumption) is proposed.

Polluted Rivers—A Case Study in Porto, Portugal

River contamination by microorganisms, or another chemical source, poses a serious threat to both the environment and public health. Taking immediate and appropriate actions is essential to mitigate the contamination and prevent further spread. As such, regular monitoring of these pollution agents is essential to act in time and control its minor extension. However, there is a lack of commitment to this emergent concern and respective actions around the world. This work aims to study the contamination of a Portuguese river (Tinto River) within Porto city (a highly populated urban area) regarding the total aerobic microorganisms, coliforms, and Enterococcus (as colony-forming units (CFUs) using specific solid culture media) and total organic matter (TOC). Different locations were considered along the Tinto River course (i.e., 14 locations within 11 km) and samples were collected on distinct days throughout September 2022. The overall results showed microbial contamination of aerobic microorganisms (up to 2 × 105 CFU/100 mL), total coliforms (up to 7 × 104 CFU/100 mL), Escherichia coli (up to 9 × 103 CFU/100 mL), and Enterococcus (up to 8 × 103 CFU/100 mL). The results also surpassed the maximum recommended values (MRVs) described in Portuguese decree-law no. 236/98 for irrigation waters. Moreover, TOC was found in a range of 4.54 mg/L to 57.2 mg/L. This work highlights the dangerous microbial contamination and higher amount of organic matter than would be expected for a surface water resource.

Co-Production Boundaries of Nature-Based Solutions for Urban Regeneration: The Case of a Healthy Corridor

Co-production, rooted in public collaborative management (Ostrom, 1996) or science and technology (Jasanoff, 2013) evolution, has demonstrated its innovative and transformative character within participatory processes. However, there is little empirical evidence that scrutinises these contexts of interaction. Equality of partnership in many cases is used as a discursive rhetoric that seeks to prescribe co-production above any difficulty, uncertainty, conflict, or unwanted situation. As a starting point, our proposal considers co-production as a social practice, composed of multiple layers and different participatory processes, activities, and strategies. Grounded in co-production approaches, the study draws upon the ongoing evaluation findings of the European project URBiNAT, which focuses on inclusive urban regeneration through nature-based solutions. The qualitative methods of evaluation (interviews and participant observation), applied during the co-production activities in the city of Porto (Portugal), provide evidence of how the various stakeholders—elected politicians, citizens, technicians, and researchers—participate in the co-production dynamic. The boundaries of a multi-stakeholder process are revealed with the goal of implementing healthy corridors in peripheral neighbourhoods. The intended evaluation analysis lies in the techniques, the agents, the dynamics, the knowledge, and the degrees of co-production. This analysis will contribute to the lack of explicit consideration of the impacts of nature-based solutions in urban regeneration pathways, especially those related to the social fabric underlined in Dumitru et al. (2020).

Instagram as a Digital Marketing Tool of a Hotel Brand

Social media marketing is increasingly seen as one of the main ways of communicating with consumers, platforms where visual content is the main form of communication, such as Instagram. The human brain is programmed to not only pay attention to individual resources, but also to the stories that these resources tell. Stories allow humans to relate, inspire, motivate, and often be persuaded, because they mix information with emotion. In marketing, this concept of storytelling focuses mainly on details of a brand's branding. Therefore, although content shared on social networks can reach a large audience, that same content can be abandoned in the same instant, and so marketers must consciously create content that is relevant and interesting to their target audience, that tells the story of the brand and that engage the target audience with the brand. The presence of hotel units on social media, particularly Instagram, is increasingly seen as one of the main tools in the hotel industry's digital strategy. This exploratory study evaluates the role of visual marketing by analyzing how it can impact the performance of Instagram posts from a five-star hotel group brand in the city of Porto, Portugal. 77 Instagram posts were analyzed according to the following categories: day of the week of publication, content creator, engagement dimensions (number of likes, number of comments and number of hashtags), presence of people, topic, visual content analysis method (objects identified and predominant tone), color (description of color and tone) and finally, storytelling (the presence of storytelling in the publication and the type of story). The Google Vision API platform was used to analyze the visual content and color of all the publications collected. This study reveals that hotels should analyze the colors, type of stories, photographic content and topics that have the most positive effect on consumers - making the most of the interaction with consumers, leading them to make a reservation at the hotel. In this sense, the main aspects of visual marketing that are most effective are suggested, in terms of color, topic and storytelling, as well as identifying good visual marketing practices.

Guidelines for Translating Frameworks, Methods, Tools and Principles of Local Innovations for Marginalised and Vulnerable Communities – 2023

The Guidelines for Translating Methods, Tools and Principles of Local Innovations for Marginalised and Vulnerable Communities aim to reflect on the ongoing experiences and lessons learned based on the first piloting round in the cities of Amsterdam, Helsinki and Porto inside the framework of CommuniCity Horizon Europe project and propose solutions for ethical and inclusive engagement with communities aimed to translate, in its metaphorical but oftentimes also literal meaning, the aims, definitions, points of reference of the project and its pilots. The overall goal to bring together representatives of the world of technology and vulnerable and marginalised communities implies the need for translation being a starting point for the mutually rewarding engagement and co-creation of technological solutions targeted to the specific needs of cities and communities. The reflective points outlined in this work add value to the next rounds of open calls and consequent piloting processes as well as to the practices exercised by the so-called replicator cities, keeping in mind the overall project goal of proposing scalable solutions to be further taken up by the European cities and communities.

Time budget of a mallard duck population residing in an urban park in northern Portugal during courtship and nesting period

Behavioural observations were used to investigate the temporal dynamics events and associated variation in the daily activities of a sedentary population of mallard duck (Anas platyrhynchos) inhabiting an urban park in northern Portugal. Data was collected at Porto City Park from December to April, during the species’ courtship and early nesting periods. The most frequent activities for this population were locomotion, resting and feeding. Statistical analysis revealed that male and female behaviours differed significantly throughout the courtship period, as males exhibited more displays and aggressive behaviour while females were more prone to feed in order to meet their increased nutritional and energetic needs. Temporal analyses showed that courtship reached a peak in intensity in February, since it was in this month that the highest values for mating, aggressive behaviour in males and defensive behaviour in females were observed. Behavioural differences were found for this population, with higher feeding rates compared to those of wild populations as well as lower defensive behaviour rates. This paper sheds light on how synanthropized populations, as well as those from Southwestern Europe, show different behavioural responses from other populations. Additional extensive monitoring of population dynamics and factors such as latitudinal differences, habituation to humans and climate change will help to predict future growth and expansion rates.

Gulls in Porto Coastline as Reservoirs for Salmonella spp.: Findings from 2008 and 2023.

Gulls act as intermediaries in the exchange of microorganisms between the environment and human settlements, including Salmonella spp. This study assessed the antimicrobial resistance and molecular profiles of Salmonella spp. isolates obtained from fecal samples of gulls in the city of Porto, Portugal, in 2008 and 2023 and from water samples in 2023. Antimicrobial susceptibility profiling revealed an improvement in the prevalence (71% to 17%) and antimicrobial resistance between the two collection dates. Two isolate collections from both 2008 and 2023 underwent serotyping and whole-genome sequencing, revealing genotypic changes, including an increased frequency in the monophasic variant of S. Typhimurium. qacE was identified in 2008 and 2023 in both water and fecal samples, with most isolates exhibiting an MDR profile. The most frequently observed plasmid types were IncF in 2008 (23%), while IncQ1 predominated in 2023 (43%). Findings suggest that Salmonella spp. circulate between humans, animals, and the environment. However, the genetic heterogeneity among the isolates from the gulls' feces and the surface water may indicate a complex ecological and evolutionary dynamic shaped by changing conditions. The observed improvements are likely due to measures to reduce biological contamination and antimicrobial resistance. Nevertheless, additional strategies must be implemented to reduce the public health risk modeled by the dissemination of pathogens by gulls.

Neuropsychological assessment and rehabilitation: an experience report at the ILCN - Instituto Luso Cubano de Neurologia in Porto, Portugal

This experience report aims to describe a period of observational/ethnographic activity in Neuropsychology, carried out at the ILCN - Instituto Luso Cubano de Neurologia, in the city of Porto, Portugal. This study presents the unit's assessment and rehabilitation models, drawing parallels with the assessment and therapeutic models in Brazil; a characterization of the Institute is carried out, with a profile of the patients and the functions performed by the multi-professional team. The theoretical concepts referenced by the neurosciences will also be described, as will the procedures and instruments used in the follow-ups, the aim of which was to qualify the treatments in order to promote the development and functionality of the users in the face of the difficulties they face on a daily basis, variables which have a direct impact on the establishment of their autonomy and quality of life. To illustrate the activities carried out, two case studies were selected which were monitored by the team from the renowned institute

An analysis of psychosocial predictors of cognitive impairment in older people living in social housing ‐ data from longitudinal study: “Porto. Importa‐se”

AbstractBackgroundCognitive Impairment (CI) is a growing public health problem among the older population, with well‐established risk factors. However, the role of psychosocial predictors still needs to be clarified. This study aimed to analyze whether psychosocial factors may be predictors of CI in older persons.MethodIn the framework of “Porto. Importa‐se” longitudinal project, this study included older persons (≥70y.o. living alone and couples ≥75y.o.), living in social housing in Porto city, Portugal. The research protocol included: Six‐item Cognitive Impairment Test (CI), Barthel and Lawton Index (Basic/Instrumental Activities of Daily Living‐BADLs/IADLs), Geriatric Depression Scale‐15 (depressive symptoms) and Lubben Social Network Scale‐6 (social isolation). Loneliness was assessed with a categorical question: Do you feel lonely?. A logistic regression analysis was conducted to identify predictors of CI. Odds Ratio (OR) and its 95% Confidence Interval (95%CI) were calculated. A p<0.05 was considered statistically significant.ResultOf the 1213 older persons (mean age 81±5.7) included, most were female (74%) and 36% had low education level (<4years). About 11% were severely dependent on IADLs and 27% presented CI. Around 35% of participants were at risk of social isolation, 54% reported loneliness and 48% showed depressive symptoms.The logistic regression model was statistically significant [X2(5,N = 1213) = 148.596,p<.001], explaining 19.7%(Nagelkerke R2) of variance in CI (correctly classified 77% of cases). The adjusted model had a moderate sensitivity (63%) and specificity (78%). The oldest persons (≥80 years old) were 1.77 as likely to have CI than younger (OR = 1.77, 95%CI[1.3, 2.4]). Those with less education (<4years) were 0.26 times as likely to present CI than reference group (≥4years) (OR = 0.26, 95%CI[0.2, 0.4]) and females 1.5 times more than males (OR = 1.50, 95%CI[1.0, 2.2]). Older persons at risk of social isolation were 1.85 as likely to have CI (OR = 1.85, 95%CI[1.4, 2.5] and those with depressive symptoms were 1.39 likely to present CI (OR = 1.39, 95%CI[1.0, 1.9]).ConclusionOlder age, female gender, low education, depressive symptoms and social isolation were predictors of CI. The existence of potentially modifiable factors (e.g., social isolation, depression), means that CI prevention is possible through the implementation of effective individual and community‐level interventions, aiming to protect older persons from CI.

‘Headless women in public art’: Migrant artivism and do-it-yourself practices in the city of Porto

This article focuses on the do-it-yourself artistic creation of migrant women in the city of Porto, Portugal, and emerging modalities of artivism. It is focused on the project ‘Headless Women in Public Art’, by the artist Mariana Morais; an art and design project – sustained by a do-it-yourself praxis and ethos – that aims to examine public art in the city of Porto through a feminist and (i) migrant lens, to identify/deconstruct aesthetic narratives created around women in public art. By adopting a case study methodology based on the use of a qualitative and visual methodology, we present a sociological discussion around the project ‘Headless Women in Public Art’, as well as a content analysis regarding a semi-structured interview made to the artist. The goal is to enhance social, cultural, artistic and symbolic re-significations around public art and female bodies in public art in Porto, while using do-it-yourself.

Assessment of land cover trajectories as an indicator of urban habitat temporal continuity

The trends of land cover dynamics in cities have major repercussions on urban biodiversity, ultimately impacting the health and well-being of human urbanites. Older habitats, i.e., habitats with higher spatiotemporal continuity, allow ecosystem processes promoting the maintenance of diverse microhabitats and the accommodation of diverse species over time, contributing for a richer biodiversity at the city level and beyond. Thus, we implement the analysis of land cover trajectories proposed as an indicator of habitat continuity, in order to identify priority areas for conservation or restoration that can be integrated in urban planning. The method was applied in the city of Porto, Portugal, and it was used to detect the main habitat patches associated with trends of vegetation persistence, gain and loss, between 1947 and 2019. The most common change was related to urbanization processes, where artificial built elements replaced areas of tree, shrub and herbaceous cover, completely dominating the territory in 2019 (66% cover). Moreover, tree and shrub cover had a relatively balanced dynamics, keeping a constant area (20–25%) while newly created wooded habitats compensated for the lost ones. Finally, areas covered with herbaceous vegetation suffered a drastic loss and fragmentation over the period of 72 years (from 40% in 1947 to 10% in 2019). This analysis of land cover evolution allowed for the identification of areas that have been continuously covered by vegetation, displaying a greater stability and higher probability of habitat continuity. This information, with its spatially explicit character, can help to inform future planning, design and management policies at a local scale and contribute to the conservation, restoration and expansion of urban habitats and their biodiversity.

Drivers and barriers to achieve a circular economy of small-IT: Case study from the city of Porto.

Advances in digital electronics delivered small and portable gadgets, changing human interface with technology. Demand for new small devices of Information and Telecommunication Technology (small-IT) that have a short lifespan, like smartphones and laptops, creates flows and accumulation of electronic resources. These include precious metals that show potential for Urban Mining and Circular Economy. To find out the extent of setting up an improved recycling, reuse and repair system, data collection was conducted through surveys, bin observations and social experiments. These methods enabled us to analyse stocks and flows, identify behavioural practices and map collection infrastructure. About 80% of domestic small-IT stocks are hibernated, meaning they could be directly reused or easily repaired. Results show four barriers that keep citizens from handing in their unused small-IT: Devices are kept as back-up, they contain sentimental value, citizens are suspicious of post-collection data confidentiality issues and there is a perceived high effort to recycle. Drivers to enhance circularity are: improving e-waste infrastructure, introducing economic incentives and raising awareness on environmental impacts of hibernated stocks. A more trustworthy and legitimate management system is expected to deliver safety and confidentiality of personal data and provide the quality that fits the expectations of citizens of a proper place to dispose of their valuable items.