摘要:
Abstract: Land-use changes remain a major source of terrestrial ecosystem carbon stock (TECS) change. However, existing studies estimating TECS change caused by land-use changes, considering the mixed land-use structure and its continuous structural changes in the land-use change model, are still absent. Our study first analyzed land-use changes during the years 2000–2020 in the Changsha-Zhuzhou-Xiangtan (CZX) urban agglomeration, and then simulated the multi-scenario mixed land-use structure pattern in 2030, and finally estimated its effects on TECS change. Results show that: (1) The TECS change in CZX urban agglomeration during the years 2000–2020 are trending downward, decreasing 5.62 Tg. (2) Over the past 20 years, land-use changes in CZX urban agglomeration were dominated by the increase of artificial surfaces, and the decrease of forest, farmland, and grassland, which are major sources of TECS reduction. (3) The total TECS in inertial development, cultivated land protection, and ecological priority scenarios, are 95.82 Tg, 95.97 Tg, and 97.31 Tg, respectively. Compared to TECS in 2020, the decrease is 2.61 Tg, 2.46 Tg, and 1.12 Tg, respectively. While the spatial pattern of losses in TECS is trending toward sustained expansion in the inertial development and cultivated land protection scenario, the ecological priority scenario is more concentrated. The results can provide decision support for regional carbon accounting, for the assessment of terrestrial carbon stock, and for the planning of the “dual-carbon” (refer to peak carbon and carbon neutrality in dioxide emissions) goal. Keywords: land-use changes; carbon neutrality; mixed land-use structure; scenario simulation; Changsha-Zhuzhou-Xiangtan urban agglomeration
期刊:
BMC PUBLIC HEALTH,2023年23(1):1352 ISSN:1471-2458
通讯作者:
Hu, YM;Hu, Z
作者机构:
[Gong, Rengui] Anhui Univ Technol, Sch Publ Management & Law, Maanshan, Peoples R China.;[Hu, Yangming; Hu, YM; Xia, Dongping] Hunan Agr Univ, Coll Publ Adm & law, Changsha, Peoples R China.;[Hu, Zan; Hu, Z] Univ South China, Affiliated Changsha Cent Hosp, Hengyang Med Sch, Changsha, Peoples R China.
通讯机构:
[Hu, Z ] U;[Hu, YM ] H;Hunan Agr Univ, Coll Publ Adm & law, Changsha, Peoples R China.;Univ South China, Affiliated Changsha Cent Hosp, Hengyang Med Sch, Changsha, Peoples R China.
关键词:
China community;Mental health;Neighborhood mental health;Older adults
摘要:
BACKGROUND: In this article, we use cross-sectional data obtained from the 2018 China Health and Aging Tracking Survey (CHARLS) to examine the impact of neighborhood mental health at the community level on the mental health of older adults aged 60years and older. METHODS: NMH is the average mental health of older adults in the same community, excluding the older adults themselves. The explained variable mental health in this paper was measured using the simple CES-D depression scale. The mediating variables were social connectedness, social participation and social inclusion, and the instrumental variables were physical exercise and amusement. regression analysis was conducted using OLS regression models, two-stage least squares (IV-2SLS) instrumental variables to address the two-way causality of NMH and MH, and KHB decomposition was used to investigate the effect mechanism. RESULTS: Baseline regressions showed that the neighborhood mental health effect positively influenced the mental health of older adults (Coef. = 0.356, 95% CI 0.315,0.397). The neighborhood mental health effect estimated by IV-2SLS (Coef. = 0.251, 95% CI 0.096,0.405) was higher than the OLS regression, indicating endogeneity. The mediated effects of KHB showed total (Coef. = 0.356, 95% CI 0.314,0.398), direct (Coef. = 0.281, 95% CI 0.232,0.330), and indirect effects (Coef. = 0.075, 95% CI 0.049,0.101). While the total effect was 1.266 times higher than the direct effect, 21.03% of the total effect came from mediating variables. CONCLUSIONS: First, the neighborhood mental health effect has a positive impact on the mental health of older adults, but there are heterogeneous differences based on gender, age, and place of residence. Second, the results of the IV-2SLS estimation showed that the effect of the neighborhood mental health effect was underestimated if endogenous problems were not controlled for. Third, the effect of neighborhood mental health on older adults' mental health was tested to be stable. Moreover, social connectedness, social participation, and social interaction are important mediating mechanisms for the effect of neighborhood mental health on older adults' mental health. This study provides new perspectives and ideas for an in-depth understanding of the mental health of older adults in the context of social transformation in China.
通讯机构:
[Yuhuan Kong] C;College of Public Administration and Law, Hunan Agricultural University, Changsha, Hunan, China
关键词:
China;Long-term care insurance system;Cox proportional-hazards model;policy diffusion
摘要:
A long-term care insurance system provides basic living assistance, medical care cost compensation, and service assurance for people with disabilities. In China, it was first piloted in Qingdao, Shandong Province, in 2012, and has now been implemented in 27 provinces as pilot areas. The locally started policy was adopted by the central government and extended to the whole country in eight years. We focus on answering two questions: How did the diffusion of the policy occur? What were its determining factors? Based on the perspective of policy innovation and diffusion, this study empirically analyzes the main factors influencing the diffusion of the long-term care insurance system using a Cox proportional-hazards model and data from 31 Chinese provinces. The study found that the main internal factors were the local aging coefficient and degree of socioeconomic development, and the main external factors were national competition pressure and central policy pressure.
关键词:
Emergencies;Network public opinion;Phased development;Structural analysis;Emergency management;Case study
摘要:
Internet public opinion is a complex and changeable system, and its trend development is characterized by explosive, evolutionary uncertainty, concealment and interactivity due to the participation of the vast number of Internet users. Today, with the rapid development of network information technology, public opinion has an increasing influence on the stable development of society. Computational intelligence is the frontier field of artificial intelligence development, and computational intelligence is used to mine and analyze public opinion text information and study the evolution of online public opinion. This paper uses the Changchun Changsheng Vaccine Incident as an example, and the netizens' degree of attention to emergency-related keyword searches in the Baidu Index as a descriptive variable for the development of network public opinion. After applying the optimal segmentation algorithm, the development of public opinion is divided into phases. On this basis, a social network analysis is adopted to analyze the spatial and topological structure of each phase of network public opinion, using data from the Sina Weibo platform. Based on optimal segmentation, the development of network public opinion of the Changchun Changsheng Vaccine Incident can be divided into four phases, namely latent, spreading, control, and stable; each phase has different spatial and topological characteristics. Corresponding policy suggestions on network public opinion governance are put forward for each phase.
关键词:
Township health center;exploratory spatiotemporal data analysis;healthcare service capacity;quantile regression;unexpected output superefficiency SBM
摘要:
INTRODUCTION: This study analyzes the efficiency, spatiotemporal evolution, and influencing factors of provincial township health centers' healthcare service capacity in China. METHOD: It utilizes an unexpected output super-efficiency slacks-based measure (SBM) model, exploratory spatiotemporal data analysis methods, and a quantile regression model. RESULTS: The results show that the healthcare service capacity of township health centers is better in provinces with a larger proportion of hierarchical diagnoses and treatments pilot projects in cities, and the regional efficiency trend is ordered central > eastern > western > northeastern. The healthcare service capacity of provincial township health centers mainly shows significant spatial correlation and a spatiotemporal distribution pattern of "high agglomeration, low differentiation." DISCUSSION: Rural population density and per capita GDP significantly improve the healthcare service capacity of township health centers, while local governments' healthcare and health expenditure increases the healthcare service capacity of township health centers in certain quantiles. The urbanization rate and per capita disposable income inhibit the improvement of the healthcare service capacity of township health centers in certain quantiles. The provinces should accelerate the promotion of hierarchical diagnoses and treatment pilot projects in cities and establish national cooperative development models to promote public health.
摘要:
Presently, global aging has become increasingly serious, whereas the health concerns brought by aging have become a public issue that warrants an urgent solution from all countries across the world. Therefore, this research paper discusses the influence of neighborhood health on elderly individuals’ health, and extending a realistic basis for the other economies to improve the neighborhood environment and promote the health of the elderly. Based on the data of CHARLS2018, this research paper adopts the samples that fulfill the study requirements (N = 7326). we constructed a comprehensive research framework integrating oprobit regression model, heterogeneity analysis, conditional mixed process(CMP)robustness testing, Furthermore, the KHB decomposition method is implemented to ascertain the influential mechanism of NMH and NPH on the mental- and physical health of elderly persons. The oprobit regression model analysis indicates that NMH 0.434 and NPH 0.550 exert positive influences on the elderly’s mental- and physical health. Meanwhile, the effects of conditional mixed process on NMH and NPH stand at 0.381 and4.372, which are different from the oprobit regression results; thereby, indicating the existence of endogeneity. Afterward, KHB mediating effect confirms that Internet use, gift reciprocity, and charity activity contribute 30.21% and 16.83% to mental- and physical health, respectively. Firstly, the NMH and NPH demonstrate a positive influence on the mental- and physical health of the elder population. However, there exist heterogeneous differences. Secondly, the conditional mixed process deals with the endogeneity of NMH and NPH. Thirdly, social integration, social interaction, and social engagement serve as significant transmission mechanisms for the influences of NMH and NPH on the health of elderly persons.
通讯机构:
[Gong Rengui] C;College of Public Administration and Law, Hunan Agricultural University, Changsha, China
关键词:
Elderly people;Physical health;Neighborhood health effects;Mechanism of function
摘要:
BACKGROUND: There are more than 26 million elderly people in China, and due to the Health China strategy proposed in 2020, "Elderly Health" has become an important topic of concern for all sectors of society. Neighborhoods provide important social relationships. However, Chinese researchers have not extensively explored the impact of these relationships on the physical health of the elderly. METHODS: Based on the data from the 2018 China Health and Retirement Longitudinal Study (CHARLS), we constructed a comprehensive research framework integrating ordinary least square (OLS) regression, heterogeneity analysis, IV-2SLS, robustness testing, and Karlson-Holm-Breen (KHB) mediating effect analysis, which can be used to thoroughly examine neighborhood health effects (NHEs) in relation to the physical health of the elderly. RESULTS: The OLS results showed that the NHEs (B=0.4689, p<0.01) had a positive influence on the physical health of the elderly, and were lower than the NHEs estimated by IV-2SLS (B=0.5018, p<0.01). The mediating effects of social networks and social relationships were analyzed using KHB, and both the total (B=0.6056, p<0.01) and indirect (B=0.0800, p<0.01) effects on neighborhood health were significant, with the total effect being 10 times larger than the direct effect and 13.24% of the total effect coming from the mediating variable. CONCLUSIONS: Firstly, the NHEs positively influence the physical health of elderly persons, but there are heterogeneous differences. Secondly, the IV-2SLS estimation results suggest that not controlling for endogeneity leads to underestimation of the role of the NHEs. Thirdly, using the county-level NHEs, self-rated health, and health changes to replace variables, and grouping by smokers (small sample) and never smoked (large sample), the influence of the NHEs on the physical health of the elderly is robust. Finally, social networks and social relationships are important transmission mechanisms of the NHEs when it comes to the physical health of the elderly.
通讯机构:
[Ke-Chiun Chang] S;School of Economics and Management, Wuhan University, Wuhan 430072, China
关键词:
One Health;zoonosis;environmental health;sustainable development;integrated governance
摘要:
Abstract: This study explores the incidence and trend of zoonoses in China and its relationship with environmental health and proposes suggestions for promoting the long-term sustainable development of human, animal, and environmental systems. The incidence of malaria was selected as the dependent variable, and the consumption of agricultural diesel oil and pesticides and investment in lavatory sanitation improvement in rural areas were selected as independent variables according to the characteristics of nonpoint source pollution and domestic pollution in China’s rural areas. By employing a fixed effects regression model, the results indicated that the use of pesticides was negatively associated with the incidence of malaria, continuous investment in rural toilet improvement, and an increase in economic income can play a positive role in the prevention and control of malaria incidence. Guided by the theory of One Health, this study verifies human, animal, and environmental health as a combination of mutual restriction and influence, discusses the complex causal relationship among the three, and provides evidence for sustainable development and integrated governance. Keywords: One Health; zoonosis; environmental health; sustainable development; integrated governance
期刊:
Security and Communication Networks,2022年2022 ISSN:1939-0114
作者机构:
[Su, Yunuo; Zhou, Haoyu] Hunan Agr Univ, Coll Publ Adm & Law, Changsha 410125, Peoples R China.;[Dai, Minhui] Cent South Univ, Xiangya Hosp, Teaching & Res Sect Clin Nursing, Changsha 410008, Peoples R China.;[Dai, Minhui] Cent South Univ, Xiangya Hosp, Dept Ophthalmol, Changsha, Peoples R China.
摘要:
Big data technology has greatly promoted the construction of intelligent administrative management and improved the decision-making ability continuously. Data mining also lays a solid foundation for the construction of administrative management platform and reflects the potential value of data. In this study, an intelligent management platform based on big data is designed and implemented. First, the problems of the intellectualization of administrative management are discussed, and the big data platform and functional framework of administrative management are introduced. Second, in order to apply data mining to administrative management, the object of data mining in administrative management is defined, and a data mining system is designed. Finally, the application of machine learning methods such as cluster analysis in administrative management is analyzed in detail. The research results show that the application of intelligent management platform based on big data can promote the construction of intelligent administration and lay a good foundation for the development of more perfect intelligent administrative management.
期刊:
Environment, Development and Sustainability,2022年24(5):7178-7194 ISSN:1387-585X
通讯作者:
Liu, B.;Wei, D.
作者机构:
[Wei, Dongsheng; Duan, Zhugeng] Cent South Univ Forestry & Technol, Coll Civil Engn, Changsha, Peoples R China.;[Liu, Bing] Hunan Agr Univ, Coll Publ Adm & Law, Changsha, Peoples R China.;[Yang, Wentao] Hunan Univ Sci & Technol, Natl Local Joint Engn Lab Geospatial Informat Tec, Xiangtan, Peoples R China.
通讯机构:
[Dongsheng Wei; Bing Liu] C;College of Civil Engineering, Central South University of Forestry and Technology, Changsha, China<&wdkj&>College of Public Administration and Law, Hunan Agricultural University, Changsha, China
关键词:
Ecological environment;SDGs;Yangtze River Economic Zone;Sustainable development
通讯机构:
[Pinghuai Yu] C;College of Public Administration and Law, Hunan Agricultural University, Changsha, China
关键词:
Health belief model;Policy tool;Post-epidemic;Risk
摘要:
OBJECTIVES: Repeated outbreaks of small-intensity epidemics are one of the important features of the post-epidemic era. After a new round of epidemics broke out in Liaoning in mid-May 2021, the Chinese government's vaccination process quickly accelerated, completing nearly 100 million doses of COVID-19 vaccination within 7 days. How is this efficient policy implementation process accomplished? What is the behavioral logic behind it? METHODS: This article constructs an analysis framework of "perception-goal-tool". Trying to study the individual's micro-psychological mechanism as a starting point, with the help of a Health Belief Model, to explore the dynamic evolution of individual health risk perception before and after the outbreak of a small-intensity epidemic and its impact on vaccination willingness. And on this basis, analyze the flexible governance process of the Chinese government in the post-epidemic period. RESULTS: The perceived severity is the core variable that affects the public's willingness to vaccinate. A small-intensity epidemic outbreak will aggravate the impact of the three health belief components on the public's willingness to vaccinate. In the three interactive analyses of health belief components, individuals have the highest willingness to inoculate in situations of low perceived susceptibility, low perception barriers, and high perception severity, and economic policy tools and authoritative policy tools play a key role before and after the outbreak of a small-intensity epidemic. CONCLUSION: In the context of a small-intensity epidemic, the reason why the Chinese government can achieve rapid crisis management lies in the interaction between policy goals, policy tools, and public risk perception.
摘要:
The structural equation model was used to empirically analyze the influence of the use of age-appropriate APP on the subjective well-being of the younger elderly. The results show that the attitudes of the younger elderly towards the use of age-appropriate apps are significantly affected by perceived usefulness and perceived ease of use, and perceived usefulness has a significant effect on perceived ease of use. The willingness of the younger elderly to use apps for aging is significantly affected by behavioral attitude, subjective norms, and perceived behavioral control. The behavior of using age-appropriate APP has a significant impact on the subjective well-being of the young elderly. The use of age-appropriate apps by the younger elderly is a positive and selective behavior, which is conducive to the younger elderly to actively adapt to and accept new technologies and improve the life satisfaction of the younger elderly.
摘要:
Biopolymer-based slow-release fertilizers (SRFs) have attracted increasing interest because of their environmental benefits. Herein, a hydrophobic thermoplastic lignin with favorable film formation properties was synthesized through simple crosslinking followed by esterification reactions. The chemical structure, glass transition temperature, and hydrophobicity were determined using Fourier transform infrared spectroscopy, H-1 nuclear magnetic resonance spectroscopy, differential scanning calorimetry, and contact angle studies. The newly synthesized esterified crosslinked sodium lignosulfonate (ECSL) enables the encapsulation of urea via a solvent-free coating method to prepare SRFs because of its appropriate glass transition temperature (Tg) and excellent film formation properties. The ECSL-based SRF released only 86.9% of the encapsulated urea within 44 d, which is superior to most lignin-based SRFs in previous studies. The release rate can also be tuned by adjusting the ECSL ratio. The synthesis of hydrophobic lignin biocomposites with suitable Tgs for film formation resolves the bottleneck of using these types of non-thermoplastic polymers (e.g., lignin) for SRFs. This study not only maximizes the value of biowaste lignin but also offers a non-paradigm approach toward low-cost SRFs for sustainable agriculture.
关键词:
pig farmers;epidemic coping behavior;African swine fever;epidemic prevention and control
摘要:
An animal epidemic is a big threat for economic development that may seriously disturb the breeding industry and people’s normal life. The most effective approach so far for epidemic control is biosecurity, zoning, culling animals exposed, and other relevant measures, which highly demands the cooperation of farmers in epidemic areas. However, an uncooperative phenomenon among individual farmers facing an epidemic has been recorded for a long time and includes unwilling to report the epidemic and selling infected pork. It is important to unravel the determinants of farmers’ coping behaviors during an animal epidemic outbreak and use corresponding strategies to reduce farmers’ inappropriate behaviors. Taking African Swine Fever (ASF) crisis as an example, this study aimed to reveal the determinants and underlying mechanism of pig farmers’ coping behaviors. We adopted qualitative interviews with 45 pig farmers across four endemically infected areas in Hunan provinces, and the data collected were subjected to a grounded theory analysis. Our results showed that emergency response, information sources, and information channels jointly affected pig farmers’ epidemic risk perception and their perception of coping behaviors. Meanwhile, both the characteristics of the government and pig farmers moderated this affect. Consequently, by processing information through either a heuristic or an analytical path, pig farmers’ behavioral intention was transformed into actual coping behaviors. Our study emphasizes the value of sufficient risk communication, proper compensation policies, and strong public trust in the government for improving the farmers’ participation in the epidemic response. Theoretical and practical implications to animal epidemic prevention and control are provided.
期刊:
International Psychogeriatrics,2019年32(2):217-227 ISSN:1041-6102
通讯作者:
Li, Wanlian
作者机构:
[Sun, Fei; Lee, Jaewon] Michigan State Univ, Sch Social Work, E Lansing, MI 48824 USA.;[Li, Wanlian] Hunan Agr Univ, Sch Publ Management, Coll Publ Adm & Law, Nongda Rd, Changsha 410125, Hunan, Peoples R China.;[Jiang, Lin] Univ Texas Rio Grande Valley, Dept Social Work, Edinburg, TX USA.