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Tian P, Pan Z, Shen Y, Zhu Y. Spatio-temporal pattern assessment of China's environmental performance and its spatial drivers: evidence from city-level data over 2003-2019. Environ Sci Pollut Res Int 2024; 31:15223-15256. [PMID: 38289552 DOI: 10.1007/s11356-024-32069-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 01/15/2024] [Indexed: 02/24/2024]
Abstract
A comprehensive assessment of China's environmental performance (EP) and an investigation into its driving factors are essential prerequisites for advancing environmental protection efforts. However, existing studies have often exhibited a one-sided EP evaluation approach and lacked a systematic perspective. Consequently, this study has adopted a holistic approach by integrating environmental protection and pollution within the same theoretical framework. We have employed the "P-S-R" model to comprehensively assess the EP of 272 cities from 2003 to 2019. Concurrently, we have applied the spatial Durbin model to analyze EP drivers utilizing three spatial matrices. The findings of this study reveal several vital insights. Firstly, the mean EP value for China is 0.1138, indicating a low level, but it demonstrates a consistent upward trend over the years. When comparing cities with high EP, they are predominantly situated in northern China, northeastern China, and certain areas along the southeastern coast. Secondly, from a spatial perspective, the directionality of EP exhibits a trend from "northeast to the southwest," with the center of gravity located in and around Zhumadian, Henan Province, gradually shifting towards the northeast. The majority of cities fall within the H-H and L-L clusters, displaying significant positive spatial autocorrelation effects. Thirdly, EP drivers encompass a wide range of factors, including economic development, urbanization, resource dependence, industrial structure, infrastructure construction, environmental regulation, government regulatory capacity, scientific and technological innovation, and foreign direct investment. These drivers also exhibit significant spillover effects. Finally, the characteristics of EP development vary between resource-based cities (RBCs) and non-resource-based cities (non-RBCs), as well as among the eastern, central, and western regions. Moreover, there are disparities in the driving factors' direct, indirect, and overall effects. Consequently, we must propose tailored strategies and recommendations to enhance EP, considering the heterogeneous effects of influencing factors across different city types, regions, and collaboration approaches.
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Affiliation(s)
- Pengpeng Tian
- College of Economics and Management, Northwest A&F University, Shaanxi, 712100, Yangling, China
| | - Zichun Pan
- College of Economics and Management, Northwest A&F University, Shaanxi, 712100, Yangling, China
| | - Yujie Shen
- College of Economics and Management, Northwest A&F University, Shaanxi, 712100, Yangling, China
| | - Yuchun Zhu
- College of Economics and Management, Northwest A&F University, Shaanxi, 712100, Yangling, China.
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Chen C, Cao C, Fang R, Wang L, Borsboom D. Revealing the psychopathological pathway linking trauma to post-traumatic stress disorder: longitudinal network approach. BJPsych Open 2023; 10:e2. [PMID: 38044677 PMCID: PMC10755552 DOI: 10.1192/bjo.2023.615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 08/22/2023] [Accepted: 10/29/2023] [Indexed: 12/05/2023] Open
Abstract
The present study investigated the psychopathological processes of post-traumatic stress disorder (PTSD) following the network approach to psychopathology. The directed acyclic graph model was employed to analyse a large longitudinal data-set of Chinese children and adolescents exposed to a destructive earthquake. It was found that intrusion symptoms were first activated by trauma exposure, and subsequently activated other PTSD symptoms. The data are consistent with the idea that symptoms may form a self-sustaining dynamic network by interacting with each other to promote or maintain the chronicity of PTSD. The findings advance the current understanding about the psychopathological processes of PTSD, and inform further research and clinical practices on post-traumatic psychopathology.
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Affiliation(s)
- Chen Chen
- Laboratory for Traumatic Stress Studies, CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, China; and Department of Psychology, University of Chinese Academy of Sciences, China
| | - Chengqi Cao
- Laboratory for Traumatic Stress Studies, CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, China; and Department of Psychology, University of Chinese Academy of Sciences, China
| | - Ruojiao Fang
- Laboratory for Traumatic Stress Studies, CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, China; and Department of Psychology, University of Chinese Academy of Sciences, China
| | - Li Wang
- Laboratory for Traumatic Stress Studies, CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, China; and Department of Psychology, University of Chinese Academy of Sciences, China
| | - Denny Borsboom
- Department of Psychological Methods, University of Amsterdam, The Netherlands
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Wang S, Liu Y, Hu Y, Zhang J, Li S, Chen Y. The honey-trap of workplace friendship: Developing and testing a three-way interaction model to understand when and why workplace friendship triggers employee withdrawal behaviour. Int J Psychol 2023; 58:486-497. [PMID: 37332092 DOI: 10.1002/ijop.12925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 05/25/2023] [Indexed: 06/20/2023]
Abstract
Although previous research has found that workplace friendship has beneficial effects on employees' and organisations' consequences, knowledge regarding the complexity and dark sides of workplace friendship is limited. Our purpose is to develop and test a three-way interaction model that explains when and how negative outcomes of workplace friendship are likely to unfold considering both individual personality and contextual conditions. Based on the stressor-emotion model, we argue that workplace friendship may also be a stressor due to its conflicting and contradictory dual roles, which in turn triggers negative employees' emotions, thus, leading to withdrawal behaviour. Furthermore, we propose that emotional reactivity and task interdependence are individual and contextual factors that induce and catalyse the negative effect of workplace friendship. By analysing the data from 429 respondents, the result supported our hypotheses. Overall, our research provides a theoretical and empirical foundation for future research on the dark sides of workplace friendship.
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Affiliation(s)
- Shuai Wang
- School of Business Administration, Shandong Women's University, Jinan, China
| | - Yuxin Liu
- International Business School, University of International Business and Economics, Beijing, China
| | - Yu Hu
- International Business School, University of International Business and Economics, Beijing, China
| | - Jianwei Zhang
- School of Humanities and Social Sciences, Beijing Institute of Technology, Beijing, China
| | - Shujie Li
- School of Business and Tourism Management, Yunnan University, Yunnan, China
| | - Yun Chen
- International Business School, University of International Business and Economics, Beijing, China
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He X, Wang Y, Du H, Feldman MW. A memetic algorithm for finding multiple subgraphs that optimally cover an input network. PLoS One 2023; 18:e0280506. [PMID: 36662749 PMCID: PMC9858781 DOI: 10.1371/journal.pone.0280506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 01/02/2023] [Indexed: 01/21/2023] Open
Abstract
Finding dense subgraphs is a central problem in graph mining, with a variety of real-world application domains including biological analysis, financial market evaluation, and sociological surveys. While a series of studies have been devoted to finding subgraphs with maximum density, the problem of finding multiple subgraphs that best cover an input network has not been systematically explored. The present study discusses a variant of the densest subgraph problem and presents a mathematical model for optimizing the total coverage of an input network by extracting multiple subgraphs. A memetic algorithm that maximizes coverage is proposed and shown to be both effective and efficient. The method is applied to real-world networks. The empirical meaning of the optimal sampling method is discussed.
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Affiliation(s)
- Xiaochen He
- Center for Administration and Complexity Science of Xi’an Jiaotong University, Xi’an, Shaanxi Province, China
| | - Yang Wang
- Center for Administration and Complexity Science of Xi’an Jiaotong University, Xi’an, Shaanxi Province, China
| | - Haifeng Du
- Center for Administration and Complexity Science of Xi’an Jiaotong University, Xi’an, Shaanxi Province, China
| | - Marcus W. Feldman
- Morrison Institute for Population and Resource Studies, Stanford University, Stanford, CA, United States of America
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Zhang Q, Zhang Y, Huang J, Teo EC, Gu Y. Effect of Displacement Degree of Distal Chevron Osteotomy on Metatarsal Stress: A Finite Element Method. Biology (Basel) 2022; 11:127. [PMID: 35053125 PMCID: PMC8772834 DOI: 10.3390/biology11010127] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 01/12/2022] [Accepted: 01/12/2022] [Indexed: 12/01/2022]
Abstract
BACKGROUND The stress of foot bone can effectively evaluate the functional damage caused by foot deformity and the results of operation. In this study, the finite element method was used to investigate the degree of displacement of distal chevron osteotomy on metatarsal stress and metatarsophalangeal joint load; Methods: Four finite element models of displacement were established by using the CT images of a patient with moderate hallux valgus (hallux valgus angle and intermetatarsal angle were 26.74° and 14.09°, respectively), and the validity of the model was verified. Each finite element model consisted of bones and various cartilage structures, ligaments, and plantar fascia, as well as encapsulated soft tissue. Except for soft tissue, the material properties of other parts were isotropic linear elastic material, and the encapsulated soft tissue was set as nonlinear hyperelastic material. The mesh was tetrahedral mesh. Link elements were used in ligament and plantar fascia. A ground reaction force with a half-body weight was applied at the bottom of the floor to simulate the ground reaction when standing. The upper surfaces of the encapsulated soft tissue, distal tibia, and distal fibula were fixed. The stress distribution of metatarsals and the stress of cartilage of the first metatarsophalangeal joint were compared and analyzed; Results: Compared with the hallux valgus without osteotomy, the stress of the first metatarsals and second metatarsals of 2-4 mm decreased, and the stress of the interarticular cartilage of the first metatarsophalangeal joint with 4 mm was reduced. In the case of 6 mm, the stress value between the first metatarsal and the first metatarsophalangeal joint increased, and 4 mm was the most suitable distance; Conclusions: Compared with the hallux valgus without osteotomy, the stress of the first metatarsals and second metatarsals of 2-4 mm decreased, and the stress of the interarticular cartilage of the first metatarsophalangeal joint with 4 mm was reduced. In the case of 6 mm, the stress value between the first metatarsal and the first metatarsophalangeal joint increased, and 4 mm was the most suitable distance. For the degree of displacement of the distal chevron osteotomy, the postoperative stability and the stress distribution of metatarsal bone should be considered. Factors such as hallux valgus angle, intermetatarsal angle, patient's age, body weight, and metatarsal width should be considered comprehensively. The factors affecting osteotomy need to be further explored. The degree of displacement of osteotomy can be evaluated by FE method before the operation, and the most suitable distance can be obtained.
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Affiliation(s)
- Qiaolin Zhang
- Faculty of Sports Science, Ningbo University, Ningbo 315211, China; (Q.Z.); (Y.Z.); (J.H.)
| | - Yan Zhang
- Faculty of Sports Science, Ningbo University, Ningbo 315211, China; (Q.Z.); (Y.Z.); (J.H.)
| | - Jialu Huang
- Faculty of Sports Science, Ningbo University, Ningbo 315211, China; (Q.Z.); (Y.Z.); (J.H.)
| | - Ee Chon Teo
- Faculty of Sports Science, Ningbo University, Ningbo 315211, China; (Q.Z.); (Y.Z.); (J.H.)
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Yaodong Gu
- Faculty of Sports Science, Ningbo University, Ningbo 315211, China; (Q.Z.); (Y.Z.); (J.H.)
- Faculty of Engineering, University of Szeged, 6720 Szeged, Hungary
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Wang YJ, Chen XP, Chen WJ, Zhang ZL, Zhou YP, Jia Z. Ethnicity and health inequalities: an empirical study based on the 2010 China survey of social change (CSSC) in Western China. BMC Public Health 2020; 20:637. [PMID: 32380963 PMCID: PMC7204236 DOI: 10.1186/s12889-020-08579-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 03/24/2020] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND In China, ethnic minorities often live in frontier areas and have a relatively small population size, and tremendous social transitions have enlarged the gap between eastern and western China, with western China being home to 44 ethnic minority groups. These three disadvantages have health impacts. Examining ethnicity and health inequality in the context of western China is therefore essential. METHODS This paper is based on data from the 2010 China Survey of Social Change (CSSC2010), which was conducted in 12 provinces, autonomous regions and province-level municipalities in western China and had a sample size of 10,819. We examined self-rated health and disparities in self-rated health between ethnic minorities and Han Chinese in the context of western China. Self-rated health was coded as poor or good, and ethnicity was coded as ethnic minority or Han Chinese. Ethnic differences in self-rated health was examined by using binary logistic regression. Associations among sociodemographic variables, SES variable, health behaviour variable, health problem variables and self-rated health were also explored. RESULTS Fourteen percent of respondents reported their health to be poor. A total of 15.75% of ethnic minorities and 13.43% of Han Chinese respondents reported their health to be poor, indicating a difference in self-rated health between ethnic minorities and Han Chinese. Age, gender, marital status, education, alcohol, and health problems were the main factors that affected differences in self-rated health. CONCLUSION In western China, there were obvious ethnic disparities in self-rated health. Elderly ethnic minorities, non-partnered ethnic minorities, ethnic minorities with an educational level lower than middle school, and ethnic minorities with chronic disease had higher odds of poor self-rated health.
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Affiliation(s)
- Y J Wang
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
- Research Center for Circular Economy in Western China, Lanzhou University, Lanzhou, 730000, China
| | - X P Chen
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
- Research Center for Circular Economy in Western China, Lanzhou University, Lanzhou, 730000, China
- Key Laboratory of Western China's Environmental Systems (Ministry of Education), Lanzhou University, Lanzhou, 730000, China
| | - W J Chen
- Philosophy and Sociology School of Lanzhou University, Lanzhou, 730000, China
| | - Z L Zhang
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China.
- Research Center for Circular Economy in Western China, Lanzhou University, Lanzhou, 730000, China.
- Key Laboratory of Western China's Environmental Systems (Ministry of Education), Lanzhou University, Lanzhou, 730000, China.
| | - Y P Zhou
- Philosophy and Sociology School of Lanzhou University, Lanzhou, 730000, China
| | - Z Jia
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
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Abstract
Structural balance plays an important role in the dynamics of signed networks. Based on structural balance, we generalize the evolution of cooperation in signed networks. Here we develop a new simulation model to study the impact of structural balance on the evolution of cooperation in signed networks. The simulation shows that cooperation prevails when an individual has a higher probability of adjusting the signs of its relations. We also find that structural balance forces the coexistence of cooperators and defectors, while the initial attributes of networks have little impact on the evolution of cooperation in the presence of structural balance, although they have a strong effect on the evolution of structural balance.
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Affiliation(s)
- Xiaochen He
- Center for Administration and Complexity Science of Xi’an Jiaotong University, Xi’an, Shanxi Province
| | - Haifeng Du
- Center for Administration and Complexity Science of Xi’an Jiaotong University, Xi’an, Shanxi Province
| | - Meng Cai
- Center for Administration and Complexity Science of Xi’an Jiaotong University, Xi’an, Shanxi Province
- School of Economics and Management, Xidian University, Xi’an, Shanxi Province
- Department of Physics, Boston University, Silber Way, Boston, United States of America
| | - Marcus W. Feldman
- Center for Administration and Complexity Science of Xi’an Jiaotong University, Xi’an, Shanxi Province
- Morrison Institute for Population and Resource Studies, Stanford University, Stanford, United States of America
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