City Center Research Articles

HOUSING PRICES AS PAYMENT FOR ECOSYSTEM SERVICES OF URBAN GREEN SPACES: CASE STUDY IN KYIV

The purpose of the study is to analyze the impact of the availability of urban green spaces (UGS) and air quality on the cost of residential real estate in Kyiv. Additionally, it seeks to identify the level of awareness among city residents regarding the advantages of living close to UGSs in areas with relatively clean air and their willingness to pay a higher price for such housing. The QGIS software was employed to assess the pedestrian and time accessibility levels of recreational green spaces, and the results are depicted on the corresponding map. The least accessible for everyday recreation is the UGS in the central districts of the city, which traditionally have the highest population density and the most expensive residential real estate. The article analyzes the priority criteria for determining the housing cost, depending on the spatial localization relative to the city center and the comfort class of real estate. The distribution of housing across different tiers and the price range for the apartments in new constructions in Kyiv during 2015–2021 were also examined. To identify the correlation between the cost of residential real estate in the capital’s new buildings and the availability of green spaces nearby, we investigated the spatial distribution of prices in the largest residential complexes in the city. The results of spatial visualization obtained through Voronoi diagrams or Delaunay triangulation indicate significant disparities in the cost of housing located in the center of Kyiv or on the periphery. Logically, residential complexes with the highest apartment prices are located in the central districts of Kyiv and near the metro stations. However, most of these locations lack accessible green areas suitable for everyday recreation. Therefore, there is no positive correlation between housing prices and the presence of UGSs nearby. To achieve the research goal, we also conducted a sociological survey among Kyiv residents in various districts of the city. The survey results indicate that most Kyiv residents do not have the desire or are not currently willing to pay a higher price for the opportunity to live near a park or forest and breathe clean air, i.e., to enjoy the ecosystem services provided by UGSs fully. The scientific novelty of the research lies in determining the pedestrian and time accessibility of recreational green spaces in Kyiv, identifying trends in spatial clustering of the most expensive residential real estate in central city areas, and demonstrating the lack of a positive impact of the availability of green areas on the per square meter cost of housing in new developments. Additionally, the study reveals a remarkably low willingness of the city residents to pay a higher price for the opportunity to receive ecosystem services from available UGSs.

The effectiveness of intraoperative ultrasound control in removing foreign bodies of soft tissues in military personnel with fragmentation wounds at the stage of specialized surgical care

BACKGROUND: The involvement of civilian medical institutions in medical care in military conflicts and counter-terrorism operations has become an important area of the medical support system. Modern methods of surgical navigation make possible minimal invasive, effective and safe removing foreign bodies from soft tissues. Clear understanding of injuries’ character allows better planning of procedures. AIM: Improving the results of treatment of military personnel with fragment wounds by taking into account the character of injury and the use of ultrasound control during removing soft tissue foreign bodies at the stage of specialized surgical care. MATERIAL AND METHODS: Data from 253 case histories who were treated at the State Budgetary Institution RO “Central City Hospital named Semashko”. Indications for the removal of fragments included the size of the fragment over 7 mm, localization near to large vessels and nerve trunks, and an acute purulent process. The patients were been randomized to two groups. Group I (control) included 118 patients in whom surgery was been performed in the traditional way. Group II (main) included 135 patients in whom procedures were performed with ultrasound navigation. The research methods are ultrasound, X-ray, clinical, and statistical. RESULTS: In 164 patients (64.8%), the wounds were of an isolated nature, where fragments were localized in various anatomical areas. 89 patients (35.2%) had combined shrapnel wounds. Of the 118 patients in group I, in whom surgery was performed in the traditional way, 65 patients (55.1%) underwent surgery under local anesthesia, 53 (44.9%) — under general anesthesia (anesthesia is always general). In 135 patients of group II, operations were performed by only one surgeon under local anesthesia. The duration of surgery, surgery invasion and wound infections rate were significantly lower in group II. CONCLUSION: The part of isolated fragment wounds is 64.8%, combined — 35.2%. The use of ultrasound navigation during surgery can significantly improve the effectiveness of surgical treatment of patients with fragmentation wounds: reduce the invasiveness and duration of surgery, blood loss, and the rate of wound infectious complications.

Evaluation and optimization of urban hydrological connectivity based on graph theory: A case study in Chengdu, China

The standardization of river system structures has reduced hydrological connectivity, exerting significant pressure on both river ecology and urban development. The precise diagnosis and proposal of optimization strategies remain key challenges. This study utilizes graph theory to delineate the river network topology in Chengdu city and establishes an evaluation index system (α, β, and γ) for hydrological connectivity. Spatiotemporal changes in Chengdu's hydrological connectivity from 2000 to 2020 are analyzed, alongside a validated optimization scheme focusing on “pressure dispersion” among river network nodes. The findings reveal a simplification of Chengdu's river network structure over the past two decades, marked by a reduction of 72 nodes and 81 river segments. Particularly in the city center (region II), these changes have significantly diminished overall connectivity. Following the implementation of the “pressure dispersion” optimization method, the distribution of critical nodes in Region II has been more equitably, enhancing resilience against disasters like floods by diversifying the burden on key nodes. Furthermore, the hydrological connectivity indices in Region II showed improvements post-optimization, with the α, β, and γ indices rising by 75%, 7.26%, and 7.26%, respectively, thereby validating the efficacy of the approach. Analyzing variations in hydrological connectivity parameters across river systems identifies vulnerable links and fundamental issues, laying groundwork for future improvements. The proposed optimization methodology offers insights applicable to cities worldwide grappling with similar connectivity challenges.

관광과 지역 정체성 정치

Despite being one of Korea's six major cities during the Japanese colonial era, Mokpo has declined to a small local city post-liberation. Since the establishment of the local government system, Mokpo has aimed to reinvent itself as a tourist destination. Over the past 20 years, the city has implemented six major tourism development and promotion projects, including night scenery lighting, a marine music fountain, urban regeneration of the old city center, a suspension cable car, hotel construction on Samhakdo Island, and branding Mokpo as a “romantic harbor city.” Throughout this process, there have been conflicts, competition, and cooperation with various civic and local interest groups. This research, based on related studies and Logan & Molotch's (2007) growth machine theory, analyzes how different groups formed growth and anti-growth coalitions and how they struggled over six key projects. Newspaper articles documenting these conflicts, competition, and cooperation were reviewed. To enhance reliability and validity, peer review and an interview with a local newspaper editor were conducted. The findings show that while the growth machine theory is useful in examining Mokpo's coalitions and their conflicts, it has limitations in fully explaining the phenomenon's complexity. The study concludes by discussing future research directions and the role of deliberative democracy in sustaining Mokpo's development as a tourist city.

Aquascape Media as A Tool in Learning The Interaction Between Living Creatures and The Environment to Improve Students' Mastery of Concepts and Communication Skills

The process of learning interactions between living things and the environment requires direct observation by students, but in reality the school is located in the city center with a less than optimal surrounding environment. The availability of learning media for this material has not been widely developed by students. The research aims to produce aquascape media that is suitable as an aid in learning interactions between living things and the environment to improve students' mastery of concepts and communication skills. The research uses a 4D development model which includes Define, Design, Develop, and Dessiminate. The test subjects were taken using a cluster random sampling technique and a sample of 66 students at SMPN 12 Yogyakarta was obtained, consisting of experimental and control classes. The field test used quasi-experimental research with a nonequivalent control group design. The feasibility, teacher practicality, and effectiveness of assessing aquascape media as an aid in learning interactions between living creatures and the developed environment are included in very good and practical.

Epidemiological characteristics of tuberculosis in a mass gathering hosting governorate in Iraq, 2018 – 2022

BackgroundTuberculosis (TB) was the first cause of death among communicable diseases before the COVID-19 pandemic. Globally, in 2020, the World Health Organization (WHO) estimated the number of TB patients with negative human immunodeficiency virus (HIV) fatalities was 1.3 million, 80,000 were in the Eastern Mediterranean Region (EMR), and 821 were in Iraq. Karbala Governorate hosted one of the largest mass gatherings in the world. This study aimed to estimate the incidence of TB and identify the sociodemographic and epidemiological characteristics of TB in Karbala, Iraq. MethodsThe data in this cross-sectional study were retrieved from the TB patients' records. The patients were contacted by telephone to compile missing information WHO standard TB definitions were used. ResultsThe total number of confirmed TB cases during 2018–2022 was 1005, with an average annual incidence of 15.8/100,000, close to the national TB incidence (15/100,000). Around 48.6 % were aged 25–54 years, with an equal male-to-female ratio. Around 51 % were illiterate, 38.6 % were housewives, and 28.3 % were smokers. Among the four districts in the governorate, the incidence was highest in the city center district that hosted the mass gathering (18.5/100,000 population) (P = 0.000). There were 619 (61.6 %) patients with comorbidities; DM was the most common, 235 (23.4 %). Household contact was reported in 20.4 %, patients with a recent history of being in prison were 1 %, and those on chemotherapy were 10 %. No seasonal pattern in TB reporting was demonstrated. Pulmonary TB constituted 48 %, and the lymph node was the main site of extrapulmonary TB (35 %). The proportion of DR-TB was 2.8 %. ConclusionWhile the incidence of TB in Karbala governorate is similar to the national incidence, the incidence in the city center was higher. Most TB patients were in their productive age group. Studying the variation in the geographical distribution and the social consequences of the disease is warranted.

La participación ciudadana como motor de las políticas de vivienda: el caso de la ocupación del Hotel Cambridge

Faced with State inefficiency in housing provision, the occupation of the Cambridge Hotel, located on the outskirts of São Paulo’s city center, was used as a case study to identify possibilities in the struggle for social housing. The building, initially a hotel built in the 1950s, closed in 2002, was expropriated in 2011, and occupied by the Downtown Homeless Movement (Movimento Sem Teto do Centro) in 2012. The movement, after social tensions and participation in participatory councils, obtained the donation of the property and its license in a federal requalification program. Through qualitative analysis of the housing deficit in Brazil, characterized by the excessive burden of rents and the precariousness of real estate, in contrast to housing policies focused on the production of units through development programs in peripheral locations, it is understood that the analysis of the determining factors for the case study’s feasibility can contribute to the discussion of government policies and actions. The methodology, based on the procedural field, observational methods, and literature review in the logical field, was structured in dialectical and inductive methods for the research, systematization, and critical analysis of bibliographic and documentary references and, in empirical processes, in the qualitative analysis of semi-structured interviews and onsite visits. It was concluded that the power of dialogue and formation of the movement’s networks and its strategy, based on surrounding itself with actors that solidify its struggle, contributed to the viability of the Cambridge Hotel as a residential property. Based on the data analyzed, it is also argued that the participation of municipalities is undeniable in enabling the provision of housing in central areas. However, considering the hegemonic bias identified, the political action of social movements and the participation of academia in its instrumentalization are essential to strengthen the Capital-State relationship and enable the collation of territorial policies that the right to the city contemplates.

Evaluating inequality divides in urban development intensity between the Global North and South

As the significance of cities worldwide with regard to human activities increases, Urban Development Intensity (UDI) becomes an increasingly critical factor for achieving Sustainable Development Goal (SDG) Target 11.3 and serves as a scientific foundation for establishing urban land development guidelines. However, the existing literature lacks systematic quantification of fine-scale UDI on the global scale. In this study, we propose a comprehensive framework for evaluating UDI globally, utilizing multi-source surveys to compare spatial variations between the Global North and South. We created structured grided UDI layers at a 1-km resolution covering urban areas worldwide, considering various aspects of urban development on land surface characterized by three-dimensional (3D) building metrics, population density, nighttime lights, and transport constructions. By employing composite models and the inequality index, we assessed UDI disparities across 6986 cities and metropolitan areas globally to investigate variations in UDI levels and heterogeneity among the Global North–South regions, inter-city, and intra-city contexts. Furthermore, the bivariate local Moran’s I statistic and k-medoid algorithm were utilized to identify spatial and pattern clusters of UDI among global cities. Our findings revealed diverse spatial distribution of multi-source UDI differences globally, with urban areas in the Global North generally exhibiting higher and more equitable intensity than that exhibited by urban areas in the Global South, where the intensity tends to be lower at the urban peripheries and highly concentrated in city centers. Recognizing the disparities and clustering patterns of UDI levels of global cities underscore the importance of promoting urban equalization to ensure containment and drive improvement in UDI towards diverse models under local urban circumstances for effective implementation of sustainable urbanization development across cities both in the Global North and South.

Internet development, information availability, and Chinese enterprises’ cooperative green technology innovation

Cooperative green technology innovation is potentially the answer to the lack of motivation for independent green innovation, which can effectively alleviate many difficulties faced by enterprises engaging in independent green innovation. Internet development provides new opportunities to stimulate innovative cooperation of enterprises. However, little literature has studied the impact of Internet development on enterprises' cooperative green technology innovation. Based on the data of Chinese A-share 3284 listed companies from 2010 to 2019, this paper uses a panel two-way fixed effects model to assess the effect of Internet development on enterprises' cooperative green innovation. The findings are: (1) Internet development significantly drives firms' collaborative green innovation behavior. The result remains robust even after performing a series of robust tests. (2) The Internet empowers green innovation cooperation among firms by improving information availability, including market information availability and technical information availability. (3) The heterogeneous results show enterprises use the Internet to accomplish high-quality collaborative green innovation. Internet development is more helpful in encouraging the cooperative green innovation of enterprises located in central cities and state-owned enterprises. This study provides novel and targeted policy implications to empower enterprises’ green innovation cooperation and drive sustainable economic development through Internet development.

Designing and Evaluating the Effectiveness of an Educational Intervention Based on the Health Belief Model (HBM) in Promoting Self-Care Behavior Among Healthcare Workers

Background: Self-care is a fundamental aspect of health, encompassing conscious and purposeful actions by individuals for themselves, their children, and their families to maintain health. Objectives: This study aimed to determine the effect of an educational intervention based on the Health Belief Model (HBM) on self-care behaviors among health workers in comprehensive urban health service centers in Rudbar in 2019. Methods: In this quasi-experimental study, 89 health workers from comprehensive urban health service centers in Rudbar city, Gilan, participated. The participants were randomly assigned into control and intervention groups. An educational intervention, consisting of five 60 - 75 minute sessions based on the HBM, was designed and implemented for the intervention group. Outcome data were collected before and three months after the educational intervention using a questionnaire that measured HBM constructs and health-promoting self-care behaviors. Data analysis was performed using the chi-square test and Mann-Whitney U test. Results: The age range of most participants (43%) was 30 - 39 years, and 86% of participants were female. Both experimental and control groups were comparable in demographic characteristics, HBM constructs, and health-promoting self-care behavior at pretest. The educational intervention based on the HBM improved the mean scores of the HBM constructs (except for perceived benefits) and dimensions of self-care behavior (P < 0.05 for all). The average score of self-care behavior in the intervention group increased from 128.4 before the intervention to 148.37 after the intervention. Conclusions: According to the results, using the HBM, with its suitable methods and structure for engaging employees actively, was effective for designing educational interventions to promote self-care behaviors in health workers. Therefore, it can be used as a suitable framework for planning educational interventions to enhance self-care behaviors among health workers.

Refining the 15-minute community living circle: An innovative evaluation method for medical facility allocation in Chengdu

The equitable distribution of public medical facilities is a cornerstone of urban planning, shaping the essence of urban livability. The globally embraced "15-Minute Community Living Circle" has offered a guiding light, but its traditional emphasis on walking often oversimplifies the complex modal choices urban residents make, especially when health emergencies necessitate rapid access. Our study revitalizes this paradigm by infusing it with a multi-modal perspective, spotlighting Chengdu—a city emblematic of the urban metamorphosis typical in burgeoning metropolises. Leveraging real-time isochrone data, our study enhances the 15-Minute Community Living Circle concept by incorporating multiple transportation modes, aligning it more closely with the realities of urban mobility. Analyzing data from 85 comprehensive hospitals and 76 streets in Chengdu, we provide a detailed assessment of spatial accessibility and efficiency. This nuanced examination reveals a distinct disparity: the city center emerges as a hub of high accessibility, contrasting starkly with the more limited access characterizing its outskirts. As urbanization accelerates and populations converge towards city centers in developing nations, these findings are both a diagnosis and a call to action. Our methodology, synergizing the multi-modal essence with the 15-minute community philosophy, offers not just an in-depth appraisal of Chengdu's medical infrastructure but pioneers a versatile blueprint for urban centers globally, reshaping how we envision equitable healthcare access in urban landscapes.

A fine-grained investigation on the predictors of urban green space growth in Nanjing

ABSTRACT Existing studies have primarily examined urban green space (UGS) evolution in isolation from the urban development context, neglecting the dynamicity of the factors affecting UGS growth in different spatiotemporal conditions and urban development levels. Taking Nanjing as the study site, we constructed spatial lag models using multi-source data and investigated the patterns and predictors of UGS growth across diverse spatiotemporal conditions in high-density environments. The model results show that: (1) although good natural conditions can support UGS development, this effect is greatly weakened in fast urban expansion as other land uses show higher priority in land occupation; (2) industrial and public service lands and commercial lands show a negative effect on UGS growth in the early and late urbanization, respectively, while residential lands demonstrated sustained negative effect in all the urbanization phases; (3) the effect of the total population and population structure varies in different urban development phases; (4) at an advanced urban development level, the areas close to city centre have better opportunities to install new UGSs. These findings offer useful references to the decision makers and planners, especially for their work on the UGS layout optimization within the high-density areas.

ANALYSIS OF THE GENERAL QUALITY INDICATORS OF THE PROVISION MOBILE RADIOTELEPHONE COMMUNICATION OPERATORS OF THE VOLGA FEDERAL DISTRICT

The article presents the results of the analysis of the general quality indicators of the mobile radiotelephone services. The source of data for such analysis was the results of tests organized by Roskomnadzor in the period from 2022 to 2023 on the networks of four major mobile operators (Beeline, Megafon, MTS and Tele2) in the five largest cities of the Volga Federal District with a population of more than a million inhabitants. The main quality indicators have been selected: voice transmission, data transmission and SMS transmission, for which a comparative analysis is performed based on a rating methodology. The positions of the control objects (the city center of the region and the operators of the PRS) are distributed in accordance with the value of the same type of indicators for each control parameter with the determination of the best and worst objects. A cumulative final rating has been compiled for each city where inspections were carried out and for each operator.

Evaluasi Visual Lanskap Pada Kampung Warna-Warni Jodipan Kota Malang

The colorful village of Jodipan in Malang City, East Java is a residential village in the city center. Kampung Warna-Warni is a slum settlement that has a higher population and building density. In 2017, a group of Public Relations students from the University of Muhammadiyah Malang (UMM) initiated changes that succeeded in turning the Jodipan settlement, which originally looked shabby, into a beautiful and elegant area with colorful paint in the village. In this research, the method was obtained from survey results and documentation. In assessing the visual quality of the Jodipan Colorful Village landscape using the Scenic Beauty Estimation (SBE) method. The recommendations produced in this research are in the form of recommendations for illustrative images such as adding landscape-forming elements (hardscape and softscape). Keyword: Kampung Warna-Warni Jodipan,Visual Lanskap, SBE

Determinants of clinic absenteeism in a chemotherapy service of a cancer center located at Rio de Janeiro, Brazil.

Clinic absenteeism promotes higher waiting lists for medical procedures and public resources waste. The present work aimed to identify the reasons for clinic absenteeism from each cycle of the antineoplastic chemotherapy treatment, as well as to determine the socio-demographic, clinical and treatment profiles of this population. This observational prospective work evaluated pediatric and adult patients which missed their chemotherapy cycle between May and October 2023 in a Cancer Center located in Rio de Janeiro, Brazil. Clinic absenteeism rate was calculated, and socio-demographic profile was described. Reasons for absenteeism, treatment protocol and most used drugs were also identified. This work analyzed data from 69 patients, the majority above 60 years old. Approximately 60% were male, 33.3% had little to no education and 63.8% lived outside the center city. Absenteeism average monthly rate was 1.73% for adults and 0.87% for children. The most related non-attendance reasons were patient feeling too ill to attend their chemotherapy session, failure to remember the cycle day and lack of means of transportation. Most prevalent neoplasms were from the digestive tract (46%). Fluorouracil, irinotecan, oxaliplatin and gemcitabine were the most discarded drugs due to absenteeism. Older patients and the ones residing far away from the Center tend to miss the scheduled chemotherapy cycles. However, most reasons for absenteeism could be avoided by confirmation calls or text messages. These procedures implementation could lead to a lower absenteeism rate and less resource waste.

Spatiotemporal characteristics of ecological resilience and its influencing factors in the Yellow River Basin of China

Maintaining and improving ecological resilience is of great practical significance for the Yellow River Basin to reduce potential ecological risks and deliver sustainable development. Based on the essential characteristics of evolutionary resilience, this paper developed an ecological resilience index system of “resistance-recovery-reconstruction-renewal” and calculated the ecological resilience of 75 prefecture-level cities in the Yellow River Basin from 2007 to 2021 with the improved TOPSIS method. Then the spatiotemporal evolution characteristics of ecological resilience were analyzed using the gravity center-standard deviation ellipse, Dagum Gini coefficient decomposition, and spatial autocorrelation analysis. Furthermore, the dynamic spatial Durbin model (DSDM) was used to investigate the influencing factors of ecological resilience. The main results are as follows: (1) The ecological resilience of the Yellow River Basin showed an overall fluctuating upward trend, and the average annual growth rate in the downstream region was larger than in the upstream and midstream regions. (2) Cities with similar levels of ecological resilience were distributed in a “large settlement, small scattered” pattern. The center of gravity shifted to the southeast, and the spatial distribution exhibited a “northwest-southeast” pattern and a trend towards an “east–west” pattern. The primary source of spatial differences was the intensity of transvariation. (3) The ecological resilience in the Yellow River Basin showed significant spatial clustering, with the H–H clustering area shifting from the Hubao-Eyu urban agglomeration to the Shandong Peninsula urban agglomeration, and the L–L clustering area mainly distributed around the Central Plains city cluster. (4) The ecological resilience of the Yellow River Basin exhibited significant snowball, spillover, and siphon effects in time, space, and space-time dimensions, respectively. In the short and long term, population density and openness significantly positively affected the ecological resilience of local and surrounding cities. Urbanization had a long-term effect on ecological resilience without a short-term effect. GDP per capita and industrial structure only imparted a significant positive influence on local ecological resilience. The negative spatial spillover of the intensity of financial investment in technological innovation gradually turned into a positive effect.

Identification of an Unknown Stationary Emission Source in Urban Geometry Using Bayesian Inference

Estimating the parameters of an unidentified toxic pollutant source is crucial for public safety, especially in densely populated urban areas. Implementing source term estimation methods in real-world urban environments is challenging due to complex phenomena and the absence of concentration observational data. This work combines a computational fluid dynamics numerical simulation with the Metropolis–Hastings MCMC algorithm to identify the location and quantify the release rate of an unknown source within the geometry of Augsburg city center. To address the lack of concentration measurements, synthetic observations are generated by a forward dispersion model. The methodology is tested using these datasets, both as directly calculated by the forward model and with added Gaussian noise under different source release and wind flow scenarios. The results indicate that in most cases, both the source location and the release rate are estimated accurately. Although a higher performance is achieved using synthetic datasets without additional noise, high accuracy predictions are also obtained in many applications of noisy measurement datasets. In general, the outcomes demonstrate that the presented methodology can be a useful tool for estimating unknown source parameters in real-world urban applications.

Priority Intervention Evaluation of Community Regeneration in Megacities Based on the Business Improvement District (BID) Model: A Case Study of Tianjin, China

This study aims to start from the macroscale of the megacity, explore a top-down operational technical path from the identification of community regeneration units as the evaluation objects to the BID priority intervention evaluation, and then propose differentiated community regeneration strategies based on the BID model. In the post-epidemic era, it is necessary for global megacities to take new measures in urban regeneration to respond to worldwide changes and challenges. As an innovative tool to promote central city revitalization, the BID model has played an important role in community transformation. In the context of the continuous decentralization of population and industry in China’s megacities, it is urgent to explore the technical path to apply the BID model to local community regeneration. Given the shortcomings of existing studies in the method to identify the scope of BID implementation and evaluate intervention priorities, this study takes Tianjin, a megacity in China, as an example and uses DBSCAN (density-based spatial clustering of applications with noise) and service area analysis to define the community regeneration units with commercial agglomeration characteristics as the objects. Then, the BID priority intervention evaluation system is constructed from the two measurement aspects of the intervention potential and the necessity of community regeneration to classify the BID intervention priorities of community regeneration units. The main conclusions are as follows: 1. When the DBSCAN analysis parameters take the minimum number of elements as 30 and the search distance as 120 m, the result is most suitable for identifying community units with commercial agglomeration of the study area; 2. Population vitality, especially working and residential population density, is the key factor affecting BID intervention potential, while road network density is an important indicator for determining the necessity of community regeneration; 3. Community regeneration units with high BID priority levels need to develop differentiated regeneration strategies combining their BID intervention potential, regeneration necessity characteristics, and location attributes. These conclusions can provide references for the governments of megacities to screen and establish BIDs.

The construction of innovative blocks and innovative cities under high-quality development in the new era

Under the new pattern of high-quality development stage, this paper closely combines the national innovation-driven development strategy and the new trend of international innovation center city construction, aiming to promote the construction and development of China's innovative blocks and innovative cities. Through in-depth comparison and analysis of the practice of innovative urban construction at home and abroad, combined with the shortcomings and shortcomings of the current innovative city construction, this paper proposes a synergistic development of urban renewal and innovative blocks. This framework aims to realize the goal of high-quality development of the city, to nurture more science and technology enterprises and knowledge-based talents, and to promote the virtuous cycle of the innovation system. At the same time, this paper emphasizes the synergistic strengthening of both "hard facilities" and "soft environment" to optimize the innovation ecosystem, build an open innovation system, and strive to create a global innovation highland. This study not only reflects the innovative concepts and decision-making wisdom in the field of management, but also provides new ideas and strategies for urban innovation and high-quality development.

Using mobile phone data to capture residential segregation and its association with travel mobility

AbstractThis study measures residential segregation and investigates its association with travel mobility by using mobile phone data from Shenzhen, China. It considers residential segregation in terms of income level and migrant group; and travel mobility in terms of travel frequency, activity space, and travel distance. Unlike previous research on residential segregation and travel mobility, our research uses mobile phone data to produce empirical evidence. The extent of segregation between different migrant and income‐level groups is measured using the location quotient and Getis‐Ord index. This enables us to develop a linear regression model with which to investigate the associations of residential segregation with travel mobility. The study results show that the segregation of middle‐ and low‐income groups and migrants from Southwestern China and Jiangxi is negatively associated with travel mobility among those in the suburbs; meanwhile, for groups segregated in the city center, there is a positive association with travel mobility. These findings suggest that residential segregation is especially adverse for the travel mobility of disadvantaged groups and those living in the suburbs. Accordingly, the paper presents policy recommendations that would enhance travel mobility by alleviating the problems associated with the residential segregation of socially disadvantaged groups living in the suburbs.