Search Results (1,293)

This study presents an algorithm for measuring Pedestrian Congestion and Safety on alleyways, wherein pedestrians and vehicles share limited space, making traditional pedestrian density metrics inadequate. The primary objective is to provide a more accurate assessment of congestion and safety in these shared spaces by incorporating both pedestrian and vehicle interactions, unlike traditional methods that focus solely on pedestrians, regardless of road type. Pedestrian Congestion was calculated using Time to Collision (TTC)-based safety occupation areas, while Pedestrian Safety was assessed by accounting for both physical and psychological safety through proxemics, which measures personal space violations. The algorithm dynamically adapts to changing vehicle and pedestrian movements, providing a more accurate assessment of congestion compared to existing methods. Statistical validation through t-tests and K-S (Kolmogorov–Smirnov) tests confirmed significant differences between the proposed method and traditional pedestrian density metrics, while Bland–Altman analysis demonstrated agreement between the two methods. The experimental results reveal that Pedestrian Congestion and Safety varied with time and location, capturing the spatio-temporal characteristics of alleyways. Visual comparisons of Pedestrian Congestion, Safety, and Density further validated that the proposed algorithm provides a more accurate reflection of real-world conditions compared to traditional pedestrian density metrics. These findings highlight the algorithm’s ability to measure real-time changes in congestion and safety, incorporate psychological discomfort into safety calculations, and offer a comprehensive analysis by considering both pedestrian and vehicle interactions. Full article

Accessibility is a fundamental human right and a key driver for inclusive tourism, particularly for individuals with disabilities, the elderly, and others with mobility challenges. This study aims to promote the Pieria region, Greece, as an “Accessible Tourist Destination” through the development of a digital platform designed to provide detailed information on the accessibility of routes, public spaces, and points of interest. The platform collects and displays data on the region’s accessibility infrastructure, including ramps, sidewalks, and points of cultural and tourist interest, allowing users to plan safe and convenient routes. The methodology involves comprehensive audits of accessibility features, and the data are integrated into an online platform, enabling personalized suggestions for users based on their needs. Initial results from the Platamonas area show detailed documentation of 68 points of interest and 97 routes, improving the accessibility experience for visitors. The findings suggest that accessible tourism has the potential to not only enhance social inclusion, but also contribute to local economic growth by attracting a broader range of visitors. The digital platform represents a significant step towards promoting tourism for all in Pieria. Full article

Using Ecological Momentary Assessment (EMA), this study examined associations between momentary availability of physical activity (PA) space and accessibility of PA opportunities among 608 elementary and middle school students who were participating in an obesity prevention trial in one mid-Atlantic state in the U.S. Smartphones prompted EMA surveys at random times to assess children’s perceived availability of PA space and accessibility of PA opportunities during out-of-school time, three to seven times each day over seven days. Multilevel logistic regression, which accounted for multiple responses per student, examined within- and between-person relations as well as the moderating effects of locale. The participants (M age = 10.88 years) lived in suburban (64%), rural (23%), and urban locales (13%). PA space availability was associated with greater PA opportunity accessibility (within-person OR = 9.82, p < 0.001; between-person OR = 22.61, p < 0.001). Locale moderated within-person relationships (p < 0.001), indicating that urban students with space were unable to use it or could be active but were without space. These findings advance our knowledge of temporal and environmental aspects related to childhood PA across diverse locales and can be used by policymakers to make informed decisions to ensure the use of age-appropriate, high quality, and safe spaces, particularly for children in urban areas. Full article

The rapid development of the logistics industry and its cooperation with other production factors have an impact on the promotion of new-type urbanization (NTU), a more sustainable and inclusive model of urban growth. This article analyzes in-depth the impact mechanism of logistics industry agglomeration, a new way to promote innovation and improve industrial efficiency, on NTU from various dimensions, including population, economy, society, space, ecology, and urban-rural coordination. Using panel data from 31 provinces in China between 2002 and 2021, the level of NTU was calculated using the entropy weight method, and a spatial econometric model was employed to examine the impact of logistics industry agglomeration on NTU and its spatial spillover effects. The research findings are as follows. The study reveals a spatial correlation between logistics industry agglomeration and NTU across Chinese regions. Logistics industry agglomeration significantly enhances NTU levels and generates spatial spillover effects, facilitating urban development in surrounding areas. The influence of regional logistics industry agglomeration on NTU demonstrates notable spatial heterogeneity, with the central region exerting a greater impact than the eastern and western regions. It can help in the understanding of regional differences and help policy makers optimize resource allocation. The impact of logistics industry agglomeration on NTU is nonlinear, primarily characterized by a substantial improvement in NTU at the medium and low levels due to logistics industry agglomeration. It helps identify regional differences and supports personalized decision making. The level of human capital, the degree of government intervention, the degree of marketization, the level of technological industrialization, the ratio of elderly dependency, and the level of innovation have direct effects and spillover effects on NTU. This paper elaborates on the mechanism of logistics industry agglomeration on NTU in China and proposes targeted proposals for promoting the development of NTU, which is highly important for promoting urbanization in other regions of the world from the perspective of industry. Full article

Background: The increase in population longevity often occurs in contexts of inequity and relative poverty, accompanied by economic deterioration. This becomes a social determinant that has a direct impact on food security. This phenomenon particularly affects certain groups and territories, although there is still a lack of disaggregated references. Intersections between factors such as being a rural inhabitant, Indigenous, woman, or elderly person are observed in relation to food security, which forces us to pay greater attention to gaps that have remained invisible for years. Objective: The objective of this study is to analyze the main factors that affect the food security of Mapuche men and women over 60 years of age living in the rural area of Temuco, Chile. Method: Qualitative, descriptive, and interpretative research was carried out, observing the process from the interpretative symbolic paradigm and the complexity approach. Results: The data are made up of the discourses of these subjects, whose analysis allowed for the identification of results. These results show that producing their own food enables rural Mapuche elders to achieve food security. The cultural food heritage preserved by Mapuche elders, especially women, acts as a facilitating factor, as do community spaces that reinforce their culture. Among the obstacles to food security are migration to the city for work, pathological aging, and the limited production of culturally healthy foods (affected by environmental problems, cultural changes, the destabilization of group identity, and public policies that are incongruent with the territorial worldview). Conclusions: While rural Mapuche elders retain valuable practices for their food security, inadequate policies, migration and environmental degradation present significant challenges. Full article

To investigate deep Earth information, researchers often utilize geomagnetic observatories and satellite data to obtain the conversion function of geomagnetic sounding, C-response data, and employ traditional inversion techniques to reconstruct subsurface structures. However, the traditional gradient-based inversion produces geophysical models with artificial structure constraint enforced subjectively to guarantee a unique solution. This method typically requires the model parameterization knowledge a priori (e.g., based on personal preference) without uncertainty estimation. In this paper, we apply an efficient trans-dimensional (trans-D) Bayesian algorithm to invert C-response data from observatory and satellite geomagnetic data for the electrical conductivity structure of the Earth’s mantle, with the model parameterization treated as unknown and determined by the data. In trans-D Bayesian inversion, the posterior probability density (PPD) represents a complete inversion solution, based on which useful inversion inferences about the model can be made with the requirement of high-dimensional integration of PPD. This is realized by an efficient reversible-jump Markov-chain Monte Carlo (rjMcMC) sampling algorithm based on the birth/death scheme. Within the trans-D Bayesian algorithm, the model parameter is perturbated in the principal-component parameter space to minimize the effect of inter-parameter correlations and improve the sampling efficiency. A parallel tempering scheme is applied to guarantee the complete sampling of the multiple model space. Firstly, the trans-D Bayesian inversion is applied to invert C-response data from two synthetic models to examine the resolution of the model structure constrained by the data. Then, C-response data from geomagnetic satellites and observatories are inverted to recover the global averaged mantle conductivity structure and the local mantle structure with quantitative uncertainty estimation, which is consistent with the data. Full article

Given that most environmental regulation is performed on the international and national scale and that municipal powers are often limited, what are the necessary conditions for local government to take on leadership and policy innovation in this space? The transportation-for-hire industry provides an interesting case study as municipalities around the world recently updated their local regulatory frameworks because of the disruption caused by the advent of ridehailing. Over time, policy learning resulted in policy convergence of major components, including license requirements, vehicle standards, and rate standardization, across the industry. However, overlooked from these initial regulations, but now gaining traction is the regulation of greenhouse gas (GHG) emissions of ridehailing vehicles and the transportation-for-hire industry more generally. Because of how many transportation-for-hire vehicles are in use, activists argue that environmental fleet standards ought to be tougher than that for personal-use vehicles. This paper investigates the emerging regulatory frameworks for GHG emissions by examining four case studies of the first-mover cities (London, Amsterdam, Mexico City, and New York City) in this emerging policy space, untangling the complex web of multi-level regulatory governance to tease our policy learning outcomes. Through the innovative lens of examining multi-level governance for policy learning, we conclude that GHG emissions in the transportation industry at the local level only occurred after international and national frameworks were set, giving “permission” to local leaders to demonstrate innovation and leadership on how to achieve targets set by higher-order governments. Cities, assisted with policy-learning transfer through international not-for-profit organizations, acted via local government powers to fill in the gaps of international and national frameworks with policies implemented at higher orders of government in other places. These local environmental transportation-for-hire bylaws took a three-pronged form: (a) vehicle permit standards; (b) regulations of public space and infrastructure; and (c) public–private partnerships to assist in the transition to electric vehicles. Full article

This study investigates the impact of tourism development on the well-being of impoverished residents in the urban area of La Candelaria, Bogotá, and the rural area of La Macarena, Meta. The participants were recruited using Colombia’s SISBÉN classification system by approaching individuals in public spaces such as bakeries, markets, and restaurants. After confirming their residency, only those classified in categories A (extreme poverty), B (moderate poverty), or C (vulnerable population) were included in the study. Data collection took place in May 2017, resulting in 307 surveys from the participants across both locations. Using Partial Least Squares Structural Equation Modeling (PLS-SEM), the findings reveal that economic benefits are the most influential factor, significantly enhancing happiness and life satisfaction. While cultural and environmental benefits are acknowledged, they are less directly linked to personal well-being. The study highlights tourism’s complex role in promoting economic growth and shaping the social, cultural, and environmental aspects of community life. However, it also identifies potential risks, such as environmental degradation and social disruption, particularly in different spatial contexts. The research underscores the need for tourism development to provide tangible, personal benefits that align with residents’ economic and emotional priorities, ensuring sustainable and equitable outcomes, especially considering the spatial disparities between urban and rural areas that influence tourism’s effectiveness in improving well-being and alleviating poverty. Full article

The city, like a piece of architecture, is a structure in space, but one of gigantic scale, something perceived only over a long period. A space is termed a place when it acquires an identity. The entirety of urban personality, urban communication, urban conduct, and urban design constitute the urban identity. This research delves into divided urban identities and examines how urban and architectural design influence the fragmentation of the cityscape. It explores the connection between urban environments’ physical attributes and the divide of social, cultural, and political identities within cities. This study uses a multidisciplinary method to acquire thorough knowledge by combining architectural studies, urban planning theories, and social-cultural perspectives. The case study of reference is the city of Matera, in southern Italy, which has a unique history of a slow shaping of its urban and productive landscape throughout centuries due to heavy environmental constraints and resource availability and which has suffered forced evacuation and major discontinuities in the past century. Here, the opposing traits of the historical Sassi district and the new town are examined, focusing on their resulting separated urban identities. The study also looks at how divided cities may be reconciled and integrated, emphasizing the relevance of a holistic urban approach for the framing of complex issues. The research proposes methods and best practices for developing inclusive urban settings that promote cohesion and shared identities through the analysis of successful cases of urban regeneration, adaptive reuse of spaces, and participatory design processes. The findings of this research contribute to both academic and practical knowledge by deepening the understanding of the relationship between urban design, architecture, and divided urban identities. It emphasizes the value of comprehensive approaches to urban planning that take into account the social, cultural, and historical settings of cities to foster inclusivity, rapprochement, and the development of common urban identities. Full article

Background: Despite advancements in T1D care regimens, racially and ethnically diverse youth with low income continue to experience worse health outcomes, more psychosocial challenges, and higher barriers to care. Alternative care models are needed to address the needs of this population. Methods: Team Clinic is a person-centered virtual peer group (VPG) care model that was assessed in a 15-month, pragmatic randomized controlled trial. Youth (ages 10–17) and their families were assigned to study arms based on their clinician’s group (standard care or person-centered care, PCC) and then randomized to VPGs or no groups. Results: Data from 79 youth and their families were examined. While positive outcomes were seen across all study groups, youth that participated in Team Clinic (PCC + VPG) reported the largest increases in resilience at the end of the study (+7.42, to 51.63, p = 0.009). These participants also reported the lowest levels of depressive symptoms as assessed by PHQ-8 scores (−5.07, p = 0.002) at the end of the study. Conclusion: Team Clinic can serve as an alternative care model for racially and ethnically diverse youth with T1D and their families. VPGs can provide unique benefits, including an increase in resilience, a decrease in depressive symptoms, and a safe space for families to connect, learn, and receive support. Full article

True crime podcasts invite their listeners to crowdsource investigations online, solving cases that have fallen through the cracks of the criminal justice system. Through a cultural criminologist lens, this digital ethnography examines The Vanished podcast as a case study of how true crime listeners engage with solving cases in digital community spaces. Previous studies have dismissed true crime fans as pseudo police acting as digital vigilantes. Podcasting communities provide an important public service, working as participatory journalists to investigate the story and report the truth. Rather than depending on law enforcement permission to organize, online crime-investigation communities leverage the Internet’s function as an organizing agent for mobilization beyond the parameters of conventional social structures and formal government agencies. Findings reveal a six-step process of case collaboration between podcast producers, active listeners, and family and friends of missing persons. Other communities can apply this unique system to successfully investigate crime, suggesting implications for individuals within marginalized groups less likely to find justice through the formal legal system. Full article

During the process of mining underground coal, the coal emits a large amount of methane into the mining space, which may lead to methane accumulation and exceed explosion safety limits When the methane encounters a fire source, a methane explosion may occur. The forceful impact caused by a methane explosion in an underground roadway can cause serious damage to the roadway structures and even lead to the collapse of the ventilation system. At the same time, the explosion impact may result in the death of workers and cause physical injury to the surviving workers. Therefore, it is necessary to study the damage effect and injury range of methane explosions. On the basis of the damage criteria and damage characteristics of methane explosions, according to the overpressure distribution of shock waves in the propagation process of a methane explosion, the explosion hazard range is divided into four ranges (from inside to outside): death range, serious injury range, minor injury range, and safety range. Four injury degrees of shock wave overpressure to personal body (slight, medium, serious injury, death), and seven damage degrees of overpressure to structures are also analyzed. The thresholds of their damage (destruction) are determined. On this basis, an experimental system and numerical simulation are constructed to measure damage characteristics, the overpressure value, and the range distance of a methane explosion with different initial explosion intensities. According to the experimental and numerical results, the attenuation formula of a methane explosion shock wave in the propagation process is derived. The research results show that the overpressure and impulse of shock waves are selected as the damage criteria for comprehensive evaluation, and the overpressure criterion is suitable of determining the injury (failure) range over long distances. The four injury ranges are in line with the actual situation and are reasonable. The injury degree also conforms to the medical results, which can be used to guide the injury degree of mine methane explosions. The injury range caused by methane explosions with different initial explosion intensities is reasonable and is basically consistent with the on-site situation. The derived attenuation formula and calculated safety distance are in good agreement with the experimental and numerical results. The research results can provide guidance and help in the escape, rescue, and protection of coal mine underground person. Full article

(1) Background: The present research aims to emphasize the interest of the Securitate in theological matters with the help of information provided by the Romanian Securitate Archives. To this end, we will focus on two important personalities of the Romanian theological space, namely André Scrima (1925–2000), who left Romania in 1956 and refused to go back, and Valeriu Bartolomeu Anania, who was imprisoned for political reasons and later sent to the USA between 1966 and 1977. Both were writers and theological and cultural personalities (Scrima was well known internationally, while Anania had made a name for himself within the borders of the country). Therefore, the question this research will try to answer is the following: What was the interest of the Romanian Securitate in terms of religious aspects and particularly in the Orthodox Church? (2) Results: This analysis of the documents from the Romanian Securitate Archives proves that, although such an interest existed, it was rather superficial and was mostly related to the potential relations between politics and theology. (3) Methods: This analysis is qualitative and consists of a case study based on the interpretation of primary sources. (4) Conclusions: The conclusion of this research is that the Romanian Securitate was interested in the personalities and the work of André Scrima and Valeriu Bartolomeu Anania and their relationships with various people. However, the theological aspect was only of secondary interest to the Romanian Securitate. Full article

In this paper, we detail the technical development of a conversation design that is sensitive to group dynamics and adaptable, taking into account the subtleties of linguistic variations between dyadic (i.e., one human and one agent) and group interactions in human–robot interaction (HRI) using the German language as a case study. The paper details the implementation of robust person and group detection with YOLOv5m and the expansion of knowledge databases using large language models (LLMs) to create adaptive multi-party interactions (MPIs) (i.e., group–robot interactions (GRIs)). We describe the use of LLMs to generate training data for socially interactive agents including social robots, as well as a self-developed synthesis tool, knowledge expander, to accurately map the diverse needs of different users in public spaces. We also outline the integration of a LLM as a fallback for open-ended questions not covered by our knowledge database, ensuring it can effectively respond to both individuals and groups within the MPI framework. Full article

Green space is not always equitably located in cities, and the attractiveness of green space varies, leaving some residents with easy access to high-quality parks and others with little or no access or access to under-maintained parks. To remedy these inequities, this study identified attractive and well-utilized recreational green spaces and developed a model to measure the likelihood of using these recreational green spaces (PSG). The goal was to reduce the travel time and cost of walking or using public transportation to get to green spaces and to design all green spaces to be attractive. The data come from the perspective of the city’s public transportation system and residents’ personal choices. First, the attractiveness of recreational green spaces was calculated from big data on the geolocation of cell phones, measuring the level of provision of recreational green spaces and the trip rates of urban residents. After that, the travel cost to reach recreational green space in residential areas was calculated according to residents’ travel habits. Finally, the probability of all recreational green spaces in the city being used was calculated by combining the population size of residential areas. Taking Pu’er City in China as an example, the attractiveness and utilization rates of recreational green spaces were calculated by PSG, and the results of the study showed that the probability of residents choosing to use the recreational green spaces that are closer to the residential area, with a larger population capacity, and with a higher attractiveness is the highest. The results of the study help promote equitable access to health and socialization opportunities for individuals and communities, thereby promoting environmental justice to help mitigate and respond to climate change. Full article