Case Studies on Transport Policy最新文献

{"title":"From runway to success: Unravelling business transformation approaches in India’s aviation industry","authors":"Vinoj Wilfred,&nbsp;M.V. Rama Prasad,&nbsp;Senthil Kumar Jaya Prakash","doi":"10.1016/j.cstp.2025.101370","DOIUrl":"10.1016/j.cstp.2025.101370","url":null,"abstract":"<div><h3>Purpose</h3><div>The purpose of the paper is to review the current transformation approaches and current strategies for transformation practice in the aviation industry, with a focus placed on scheduled airlines in India.</div></div><div><h3>Design/methodology/approach</h3><div>Qualitative research methodology is used in this paper. Data required for the study were collected through in-depth interviews with the participants to study the transformation approach and strategy in the airline industry in India.</div></div><div><h3>Findings</h3><div>The industry generally favours growth strategies over cost-cutting measures while also advocating for a balanced approach. Funds previously allocated to cost-cutting initiatives are often redirected to fuel growth initiatives. There is a noticeable shift toward developing a solution-oriented mindset through a customer-centric approach. Additionally, leadership plays a critical role in the success of transformation efforts, with the implementation phase identified as the most crucial stage in the transformation process.</div></div><div><h3>Research limitations/implications</h3><div>This study focuses exclusively on factors such as growth initiatives, cost-cutting, and best practices. The findings emphasize the importance of a balanced approach to growth and cost management. There is potential for future research to explore a broader range of transformation initiatives. Given that this research is sector-specific to the aviation industry, its generalizability may be limited. Therefore, it underscores the need for further multi-sector analysis to enhance the applicability of these insights across industries.</div></div><div><h3>Practical implications</h3><div>The analysis aimed to determine where cost-cutting and growth initiatives should be positioned in the transformation journey, as it was crucial to understand the organizational life cycle and its current position to successfully transform businesses in the aviation industry. By following the route to transformation with the application of best practices, businesses will be able to ensure successful transformation and achieve significant payoffs from their transformation efforts.</div></div><div><h3>Originality/value</h3><div>Amidst the unprecedented COVID-19 pandemic, this research paper sheds light on the current approach and focus of business transformation in the Indian airline industry. By analysing the approaches taken by the industry and identifying critical success factors, this study not only offers valuable insights but also provides a roadmap for businesses to successfully navigate the challenges and changes in the aviation sector.</div></div>","PeriodicalId":46989,"journal":{"name":"Case Studies on Transport Policy","volume":"19 ","pages":"Article 101370"},"PeriodicalIF":2.4,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143093258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploring factors influencing Commuters’ satisfaction towards regional transit System: A case of National Capital Region, India","authors":"Aditya Manish Pitale ,&nbsp;Shubhajit Sadhukhan ,&nbsp;Manoranjan Parida","doi":"10.1016/j.cstp.2025.101372","DOIUrl":"10.1016/j.cstp.2025.101372","url":null,"abstract":"<div><div>Assessing the service quality of transit systems has gained massive importance in recent years. However, commuters’ satisfaction plays a significant role in determining the service quality of a transit system. This study attempts to examine the relationship of different attributes on the overall satisfaction of commuters using existing regional transit systems operated between Delhi, Gurugram, and Rewari districts of the National Capital Region (NCR), India. A questionnaire-based survey captured the satisfaction of 781 respondents over 27 attributes using a five-point Likert-type scale. The Structural Equation Modelling (SEM) is used to determine the relationship of the latent factors with the overall satisfaction of regional transit systems and is further used to identify the ones that are more important and have a strong effect on overall satisfaction using the importance performance map analysis (IPMA).</div><div>The result showcases that information at the station is the most satisfactory attribute, while commuters are least satisfied with the cleanliness of toilets at the station. Three latent factors are developed in the model, out of which, the latent factor <em>Vehicle</em> has a direct effect on the overall satisfaction at 0.01 significance level, while it is not the same in the case of the remaining two. The <em>Vehicle</em> latent factor is found to be a full mediator for the <em>Station</em> latent factor, while a partial mediator for the <em>Service</em> latent factor to influence the overall satisfaction of commuters using regional transit systems. Finally, the IPMA results indicate that the performance of overall satisfaction can be increased by prioritizing improvement in the performance of station related attributes, followed by those related to the vehicle. The relationship of different attributes and overall satisfaction derived in this study will assist the regional transit authorities in improving commuters’ overall satisfaction.</div></div>","PeriodicalId":46989,"journal":{"name":"Case Studies on Transport Policy","volume":"19 ","pages":"Article 101372"},"PeriodicalIF":2.4,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143102818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Examining the impact of the COVID-19 pandemic on older adults’ activity participation and mode usage in a rural state: A case study of Arkansas","authors":"Arna Nishita Nithila ,&nbsp;Suman Kumar Mitra ,&nbsp;Alishia Juanelle Ferguson ,&nbsp;Michelle Gray ,&nbsp;Jennifer D. Webb","doi":"10.1016/j.cstp.2025.101368","DOIUrl":"10.1016/j.cstp.2025.101368","url":null,"abstract":"<div><div>The objective of the study was to investigate the impact of the COVID-19 pandemic on the activity participation and mode usage of older adults residing in Arkansas, a predominantly rural state. Leveraging primary data collected from 832 older adult participants, the study employed Latent Class Analysis (LCA) to capture older adults’ heterogeneity in travel behavior and found three distinct classes: Pandemic-affected minimal travelers, Unaffected non-commuter car users, and Unaffected commuter car users, showing different levels of their activity participation, mode usage during the pandemic and varying the pandemic’s impact on their trips. To understand these variations in light of the older adults’ socio-demographic attributes, residential locations, and health perceptions, we added covariates in the LCA model to predict the class membership. Results from the class membership model revealed distinct differences among the identified classes. The Pandemic-affected minimal travelers (Class 1) were characterized by being female, having low socio-demographics, unemployment, non-driving status, poor health perceptions, and living in rural areas. This group experienced a greater pandemic impact on their activity participation and mode usage. In contrast, the Unaffected non-commuter car users (Class 2) were more likely to be male, White, urban older adults with higher incomes and better health perceptions. Despite sharing similar socio-demographic characteristics with Class 2, Unaffected commuter car users (Class 3) experienced more disruption in activity participation than non-commuters. Results from descriptive statistics showed that older adults’ personal and work trips were relatively less affected compared to their shopping and social trips. Regarding mode usage, car driving was significantly impacted across all classes, with the Pandemic-affected minimal travelers (Class 1) showing a particularly notable decrease. Active modes and non-driving transportation alternatives experienced minimal usage during the pandemic and also experienced a minimal impact across all classes. These findings can offer several policy insights, including addressing the unique needs of different groups of older adults, establishing connections between policies addressing the gender gap, health, transportation, rural–urban disparity, extending the role of family and communities in meeting older adults’ transportation needs, offering programs aimed at enhancing digital skills, promoting alternative transportation options, and raising awareness among older adults for making plans after their driving cessation.</div></div>","PeriodicalId":46989,"journal":{"name":"Case Studies on Transport Policy","volume":"19 ","pages":"Article 101368"},"PeriodicalIF":2.4,"publicationDate":"2025-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143093259","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Energy transition and decarbonization of road transportation: A case study of São Paulo’s Race to Zero by 2050, Brazil","authors":"Rafael Herrero Alonso ,&nbsp;Ubiratan Francisco Castellano ,&nbsp;David Tsai ,&nbsp;Ingrid Graces ,&nbsp;Dorel Soares Ramos","doi":"10.1016/j.cstp.2025.101365","DOIUrl":"10.1016/j.cstp.2025.101365","url":null,"abstract":"<div><div>The transportation sector is essential for climate change mitigation, especially in reducing fossil fuel dependence. Brazil, a top 10 automotive market, faces significant challenges in decarbonizing its transportation sector, with São Paulo state, the fourth-largest emitter, playing a pivotal role. This study examines the São Paulo State Energy Plan 2050 Race to Zero (PEE 2050), focusing on road transport. It reviews São Paulo’s historical energy actions, integration with climate policies, global and regional trends in transport electrification and biofuels, and energy demand projections under an emission mitigation scenario. By 2050, the scenario predicts a 41% reduction in diesel consumption, widespread vehicle electrification, a 99% drop in gasoline use for light vehicles, and increased biofuel demand. Biomethane use is projected at 1.5 billion m<span><math><msup><mrow></mrow><mrow><mn>3</mn></mrow></msup></math></span>, ethanol demand at 13 billion liters for passenger cars, and higher blending rates for biodiesel and green diesel. Hydrogen is expected to complement the energy mix post-2040, supported by advances in storage and global investments. The study outlines five critical fuel transition pathways and policy measures essential for decarbonization. It concludes that PEE 2050 offers innovative methodologies and scenarios, providing valuable insights for policymakers, stakeholders, academia, and the public, advancing energy transition and decarbonization in São Paulo and Brazil.</div></div>","PeriodicalId":46989,"journal":{"name":"Case Studies on Transport Policy","volume":"19 ","pages":"Article 101365"},"PeriodicalIF":2.4,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143093254","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An ex-ante economic and environmental assessment of railway intervention: A case study in Regione Lombardia","authors":"Giovanni Garola ,&nbsp;Guillaume Monchambert ,&nbsp;Giovanni Mancardi ,&nbsp;Chiara Siragusa ,&nbsp;Riccardo Mangiaracina","doi":"10.1016/j.cstp.2025.101367","DOIUrl":"10.1016/j.cstp.2025.101367","url":null,"abstract":"<div><div>The present case study aims to enrich the discussion on Conventional Rail (CR) interventions, investigating two types of solutions, a <em>frequency increase</em> and a <em>new station construction</em>, in two different contexts, respectively, characterised by high and low demands. The area of investigation is Regione Lombardia (Italy). We combine a Benefit-Cost Analysis (BCA) and a Life Cycle Assessment (LCA) to estimate economic and environmental viability. We find different performances according to the scenarios. In the high-demand area, a Benefit Cost Ratio (BCR) larger than 1 is observed in both interventions, while in the low-demand area, the BCR is significantly lower than 1. For the emissions, the implementation of the interventions shows almost a net balance of zero between the emissions saved and the additional emissions produced. Sensitivity analyses varying the critical variables (i.e., demand diverted, investment costs, and emission factors) are performed. The diverted demand results in being critical to improve both performances, whereas a mutually beneficial approach that combines environmental and transport policies is essential to reduce transport emissions. The following study contributes to academia by comparing the expected effects of different railway interventions in a CR system, using a combined economic and environmental assessment for their evaluation.</div></div>","PeriodicalId":46989,"journal":{"name":"Case Studies on Transport Policy","volume":"19 ","pages":"Article 101367"},"PeriodicalIF":2.4,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143093552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Why not share it? — Understanding preferences for car sharing services in Warsaw, Poland","authors":"Jakub Zawieska ,&nbsp;Michał Jakubczyk ,&nbsp;Katarzyna Zagórska ,&nbsp;Joanna Jaczewska ,&nbsp;Ewa Zawojska ,&nbsp;Pål Wilter Skedsmo ,&nbsp;Michał Wolański","doi":"10.1016/j.cstp.2024.101346","DOIUrl":"10.1016/j.cstp.2024.101346","url":null,"abstract":"<div><div>Encouraging the transition to car sharing services (CSS) in cities may reduce parking space needs, traffic and pollution. This study focuses on Warsaw, Poland, as a case study of a city in Central and Eastern Europe, where CSS adoption has been lacklustre with some CSS being discontinued. To gain a deeper understanding of the lack of acceptance we aimed (1) to elicit the preferences for CSS among citizens of Warsaw, and (2) to assess how the provision of information influences attitudes toward CSS. We surveyed a random sample of 1,157 adult Warsaw citizens online, half of whom were exposed to information on CSS benefits. To gauge preferences across various scenarios, we employed a discrete choice experiment, wherein respondents selected their preferred CSS option to be launched, not limited to a specific single trip. Our findings reveal that the provision of additional information had no impact on preferences or anticipated usage. Through latent class modelling of the choices (including a garbage class to control for data quality), we identified two distinct respondent classes. These classes diverged primarily in their attitudes toward engine types: the majority class (72%) favoured combustion engines, while the minority class (22%) preferred battery-electric ones. The larger class exhibited a greater need for additional benefits (e.g. exclusive parking spots, access to bus lanes) and nationwide travel options. Our study underscores the importance of both municipal support for CSS and recognition of the diversity of preferences among potential users for the successful deployment of CSS.</div></div>","PeriodicalId":46989,"journal":{"name":"Case Studies on Transport Policy","volume":"19 ","pages":"Article 101346"},"PeriodicalIF":2.4,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143093553","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The role of subscription sharing and nationality in MaaS uptake in Qatar","authors":"Tsirimpa Athena ,&nbsp;Karakikes Ioannis ,&nbsp;Tsouros Ioannis ,&nbsp;Mohammed Anas ,&nbsp;Tahmasseby Shahram ,&nbsp;Salam Salwa ,&nbsp;Alhajyaseen Wael ,&nbsp;Polydoropoulou Amalia","doi":"10.1016/j.cstp.2025.101364","DOIUrl":"10.1016/j.cstp.2025.101364","url":null,"abstract":"<div><div>As urban environments grapple with complex transportation challenges, Mobility as a Service (MaaS) has emerged as a promising solution. MaaS integrates diverse transport modes into a seamless and user-centric platform, offering convenience, flexibility, and sustainability. However, its successful adoption hinges on understanding the factors shaping user preferences and subscriptions. This study comprehensively analyzes the intricate web of influences on MaaS adoption, including individual preferences, socio-demographic characteristics, and contextual factors like weather conditions, with a focus on the State of Qatar. The research investigates the impact of different transport modes, pricing factors, and subscription sharing on MaaS uptake while considering the role of gender, age, income, nationality, and occupation status. Data collected through a survey are utilized to develop econometric models for MaaS subscription usage. The study findings show that a comprehensive MaaS plan with diverse transportation options such as Metro, e-scooter/bike rides and ridesharing was preferred by individuals. Subscription sharing was favored but influenced by the extra cost, with higher prices deterring adoption. Furthermore, it is noteworthy that Arab immigrants exhibit a pronounced inclination towards subscribing in MaaS packages, suggesting a specific interest or receptiveness within this demographic. Additionally, the study reveals a higher likelihood of MaaS subscription adoption among households with lower incomes and certain occupational statuses. Finally, respondents expressed a significant willingness to pay up to QR 208 (USD 57) for each additional person allowed to share their monthly MaaS plan.</div></div>","PeriodicalId":46989,"journal":{"name":"Case Studies on Transport Policy","volume":"19 ","pages":"Article 101364"},"PeriodicalIF":2.4,"publicationDate":"2025-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143093555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Financial center or air transportation hub? An empirical analysis for Istanbul","authors":"Tansu Yıldırım","doi":"10.1016/j.cstp.2024.101363","DOIUrl":"10.1016/j.cstp.2024.101363","url":null,"abstract":"<div><div>This study investigated whether Istanbul should focus to become an international financial center or an air transportation hub with the contribution of the new Istanbul Airport and growing air transportation. This matter was empirically tested by analyzing a survey conducted with individuals who use air travel. Regression analysis was applied to determine the Istanbul Airport’s contribution to the city. Applying ordinal regression analysis revealed that the Istanbul Airport, whose construction has faced severe opposition, and the increase in air transportation contribute more to the hypothesis that the city can become an air transportation hub. Therefore, aiming for Istanbul to become an air transportation hub rather than a financial center is likely a more reasonable and meaningful strategy for the Turkish government to follow.</div></div>","PeriodicalId":46989,"journal":{"name":"Case Studies on Transport Policy","volume":"19 ","pages":"Article 101363"},"PeriodicalIF":2.4,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143093256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ways of increasing transit ridership-lessons learned from successful transit agencies","authors":"Nawshin Tabassum ,&nbsp;Hannaneh Abdollahzadeh Kalantari ,&nbsp;Justyna Kaniewska ,&nbsp;S. Hassan Ameli ,&nbsp;Reid Ewing ,&nbsp;Wookjae Yang ,&nbsp;Noshin Siara Promy","doi":"10.1016/j.cstp.2024.101362","DOIUrl":"10.1016/j.cstp.2024.101362","url":null,"abstract":"<div><div>For promoting equitable communities and environmental sustainability, special attention has been given to expanding and improving public transit services to attract new riders. Different internal and external factors are associated with the transit demand analysis. This project aims to understand the ways of increasing transit ridership from the case studies of successful regions that have experienced growth in transit ridership in the pre-pandemic era (ridership growth nine years before the pandemic, 2010 to 2019). In this regard, twelve successful regions/ transit operators in terms of growth in transit ridership have been identified based on the National Transit Database (NTD). Then, the authors conducted interviews with the selected successful transit planners and other key personnel to find key internal and external factors associated with their success. The agencies attribute their ridership growth to rapid growth of population, land use changes, service expansion and improvements, incentives to students and vulnerable communities, restrictive parking, community outreach, and so on. This research should help policymakers and other transit agencies with decreasing ridership to boost their ridership following the strategies of successful agencies.</div></div>","PeriodicalId":46989,"journal":{"name":"Case Studies on Transport Policy","volume":"19 ","pages":"Article 101362"},"PeriodicalIF":2.4,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143093554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Engaging stakeholders in construction transport policy: A mass-participation framework","authors":"He Huang ,&nbsp;Nicolas Brusselaers ,&nbsp;Yves De Smet ,&nbsp;Cathy Macharis","doi":"10.1016/j.cstp.2024.101359","DOIUrl":"10.1016/j.cstp.2024.101359","url":null,"abstract":"<div><div>In the complex landscape of social decision making, multi-criteria decision making (MCDM) provides decision makers with a structured approach to evaluate multiple alternatives based on multiple conflicting criteria. Numerous multi-criteria group decision making (MCGDM) frameworks have been developed to engage stakeholders like citizens on a large scale and to capture their diverse preferences. Real-World Application in Construction Logistics: The framework’s utility and effectiveness are empirically validated through its application in a construction logistics project. This application involved gathering preferences from residents near the construction site and using these inputs to guide policy decisions, demonstrating the framework’s practical impact on urban planning and development. However, current frameworks exhibit certain limitations. In recognition of this, we present the mass-participation framework for MCGDM. This innovative framework combines data collection of criterion weights via survey with representative workshops for a more holistic evaluation of alternatives. Key features of our approach include the tailored adaptation of the Revised Simos Method for surveys, which ensures intuitive weight elicitation. In addition, we introduce a clustering algorithm rooted in priority-based K-medoids techniques and employ a comprehensive set of metrics for optimal cluster number determination. The methodology is then empirically illustrated in the context of a real-world construction logistics project. The research highlights the importance of extensive stakeholder engagement for robust and inclusive construction transport and urban planning policies. Our mass-participation framework moves beyond traditional consultation by actively involving stakeholders in decision-making, allowing them to contribute both preferences and solutions. Empirical validation in the Brussels-Capital Region involved over 150 residents, whose preferences were clustered into distinct groups based on their concerns, such as noise pollution, air quality, and traffic accessibility. The majority of stakeholders favored sustainable logistics solutions, particularly electric concrete trucks, due to their potential to reduce environmental impacts. These findings demonstrate the framework’s ability to capture diverse perspectives and inform sustainable policy development.</div></div>","PeriodicalId":46989,"journal":{"name":"Case Studies on Transport Policy","volume":"19 ","pages":"Article 101359"},"PeriodicalIF":2.4,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143093556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}