期刊:
International Journal of Environmental Research and Public Health,2022年19(5) ISSN:1661-7827
通讯作者:
Jiang, T.
作者机构:
[Zhang, Xinyu; Zhu, Zhiqiang; He, Shuli; Ren, Xiaolu; Tao, Huilin] Shangrao Normal Univ, Sch Chem & Environm Sci, Shangrao 334001, Peoples R China.;[Yuan, Limin; Xie, Wenlian; Li, Lihong] Shanghai Univ Engn Sci, Sch Chem & Chem Engn, Shanghai 200335, Peoples R China.;[Zhang, Xinyu; Zhu, Zhiqiang; He, Shuli; Ren, Xiaolu; Tao, Huilin] Jiangxi Modern Polytech Coll, Sch Environm & Energy, Nanchang 330095, Jiangxi, Peoples R China.;[Jiang, Tao] Hunan Agr Univ, Natl & Prov Union Engn Res Ctr Vet Herbal Med Res, Changsha 410128, Peoples R China.
通讯机构:
National and Provincial Union Engineering Research Center for the Veterinary Herbal Medicine Resources and Initiative, Hunan Agricultural University, Changsha, China
摘要:
Previous studies of the Children's Hope Scale (CHS) have not compared its factor structure using samples of Chinese early adolescents and American early adolescents. Contrary to expectations, the one-factor model revealed a better fit for the Chinese sample (N = 1184) whereas the two-factor model revealed a better fit for the American sample (N = 1049). Full measurement invariance was not demonstrated for the two-factor model of the CHS with the Chinese adolescents. This finding indicated that researchers should not make mean level comparisons between the two factors of agency and pathways across early adolescents from these two nations. Partial scalar invariance was achieved for the one-factor model, which suggested that researchers may tentatively make comparisons between Chinese and American early adolescents using CHS total scores. Although caution should be exercised in interpreting the mean differences, Chinese adolescents reported a lower total mean level of hope than American adolescents. Differences in the findings are discussed within the collectivism-individualism framework.
摘要:
In this study, the role of exogenous root exudates and microorganisms was investigated in the application of modified nanoscale zero-valent iron (nZVI) for the remediation of cadmium (Cd)-contaminated soil. In this experiment, citric acid (CA) was used to simulate root exudates, which were then added to water and soil to simulate the pore water and rhizosphere environment. In detail, the experiment in water demonstrated that low concentration of CA facilitated Cd removal by nZVI, while the high concentration achieved the opposite. Among them, CA can promote the adsorption of Cd not only by direct complexation with heavy metal ions, but also by indirect effect to promote the production of iron hydroxyl oxides which has excellent heavy metal adsorption properties. Additionally, the H(+) dissociated from CA posed a great influence on Cd removal. The situation in soil was similar to that in water, where low concentrations of CA contributed to the immobilization of Cd by nZVI, while high concentrations promoted the desorption of Cd and the generation of CA-Cd complexes which facilitated the uptake of Cd by plants. As the reaction progressed, the soil pH and cation exchange capacity (CEC) increased, while organic matter (OM) decreased. Meanwhile, the soil microbial community structure and diversity were investigated by high-throughput sequencing after incubation with CA and nZVI. It was found that a high concentration of CA was not conducive to the growth of microorganisms, while CMC had the effect of alleviating the biological toxicity of nZVI.
摘要:
The construction industry plays an important role in China's industrialization and urbanization process, which has become a major contributor to carbon emission in China. We innovatively use carbon footprint as an indicator of undesirable output in evaluating the construction industry since it captures both direct and indirect carbon emission. Then we conduct a comprehensive analysis of eco-efficiency of this industry under the framework of natural disposability and managerial disposability with a new radial DEA model on considering both desirable and undesirable outputs. We have several important findings. First, non-metallic mineral products, metal smelting and calendering, electricity and heat production, and supply are major drives from the perspective of the industrial chain. And the carbon footprint is mainly caused by capital formation from the final demand perspective. Second, most regions have a relatively lower eco-efficiency due to weak awareness of environmental protection, and there is a large emission reduction potential by eco-technology innovation. Finally, developed regions prefer to adopt the strategy of increasing investment in eco-technology innovation. The other regions generally adopted the strategy of reducing all inputs. The government should strengthen environment regulation and encourage the developing regions to increase investment in eco-technology innovation.
作者机构:
[Long, Xiaojie; Tang, Hongjiu] Hunan Agr Univ, Coll Landscape Architecture & Art Design, Changsha, Peoples R China.;[Tang, Hongjiu] Sun Yat Sen Univ, Sch Geog & Planning, Guangzhou, Peoples R China.;[Liu, Zhaoyin] Hunan Agr Univ, Coll Resources & Environm, Changsha, Peoples R China.
摘要:
This study examines farmers' intentions towards pro-environmental behavior in a famous tourist village in China called Guanshan, whose ecological environment is polluted. By adopting the empirically validated norm activation model (NAM) of Schwartz and merging it with Vroom's expectancy theory, the current research aims to develop a refined framework for understanding the formation of and predicting changes in pro-environmental intention. Field surveys were conducted in Guanshan, which resulted in sample data consisting of 275 valid responses collected by the research team. We develop a refined model, including six latent variables and 24 observational items. The structural equation modeling results show that the final model enjoys a better predictive accuracy of pro-environmental intention than does the original NAM. The study also discovers that the motivational force of expectancy theory significantly influences pro-environmental intention, whose motivational force comes from the impact of valence and expectancy. The pro-environmental intentions of farmers are mainly affected by the environmental personal norm and by a certain degree of personal expectancy. The improvement of farmers' pro-environmental intention needs be promoted in two approaches: the cultivation of personal environmental protection norms and the guidance of producing a desired expectation for pro-environmental intention.
通讯机构:
[Sheng Zhang] N;[Ailing Liu] C;College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan, China<&wdkj&>National Research Center of Engineering Technology for Utilization of Functional Ingredients from Botanicals, Collaborative Innovation Centre of Utilisation of Functional Ingredients from Botanicals, Hunan Agricultural University, Changsha, Hunan, China
摘要:
Skeletal muscle (SkM) is essential for body movement, energy metabolism, and material metabolism, and directly influences the quality of human life. Aging, chronic diseases, and strenuous exercise often lead to various health problems associated with SkM, including muscle atrophy, loss of muscle mass and strength, and metabolic disorders. Various natural products (NaPs), mainly resveratrol (RES), quercetin (QUE), ursolic acid (UA), ecdysone (ECD; mainly 20-OH ECD, 20-HE), and vitamin D, have been reported to protect or regulate SkM health. Some of the products are functionally equivalent to sex hormones, and some are even referred to as "plant exercise pills." However, controversy persists regarding the role of NaPs in SkM health. Therefore, this review objectively summarizes the in vivo and vitro biological activities, molecular mechanisms, and clinical research results of studies on NaPs applied in the regulation of SkM health over the past decade. The present review could advance further research on NaPs and SkM health, and facilitate the revelation of new evidence that could facilitate the application of NaPs in ensuring SkM health. (c) 2021 Elsevier Inc. All rights reserved.
摘要:
Oil price forecasting is one of the most challenging issues since it is noisy, non-stationary, and chaotic. In this paper, we design a Bayesian Nonlinear Quantile method consisting of a Threshold Improved model and an Adaptive MCMC model to improve predicting performance. Specifically, the threshold improve model is introduced to solve the problems caused by the completely asymmetric distribution, and the Adaptive MCMC model is used to get the optimal threshold. Besides, the two-stage framework is applied to improve traditional methods' performance, including the Indirect GARCH model and Asymmetric Slope model. The experimental results show that our approach provides a promising alternative to oil price prediction, and the framework also improve the performance of the traditional methods. The contribution of this paper is to improve the accuracy of the oil price forecasting model, and the framework applies to other energy prices as well. (C) 2021 THE AUTHORS. Published by Elsevier BV on behalf of Faculty of Engineering, Alexandria University.
关键词:
Investment;Renewable energy sources;Decision making;Fuzzy sets;Bibliographies;Licenses;Companies;Renewable energy investments;incomplete preferences;consensus group decision making;Pythagorean fuzzy sets;balanced scorecard;DEMATEL
摘要:
The aim of this study is to generate appropriate strategies to improve renewable energy investments. Within this framework, a novel model has also been proposed which includes three different stages. Firstly, incomplete preferences of the relation matrixes are calculated. For this purpose, 4 different decision makers evaluate the balanced scorecard-based criteria. In this stage, missing values are estimated by incomplete preferences to complete the relation matrixes. Additionally, the second stage includes the computing the fuzzy preferences by considering the consensus-based group decision-making (CGDM). The final stage is related to the calculation of the weights of the criteria by considering Pythagorean fuzzy decision-making trial and evaluation laboratory (DEMATEL) methodology. Hence, the main motivation of this study is to identify innovative strategies for the renewable energy investments with a novel multi-criteria decision-making (MCDM) model based on incomplete preferences, CGDM and Pythagorean fuzzy sets. The findings indicate that learning and growth is the most important balanced scorecard-based perspective to improve the performance of renewable energy investments. Additionally, the perspective of internal process is identified as another significant factor for this situation. The biggest problem in renewable energy projects is their high initial costs. Hence, technological developments reduce the production costs of renewable energy sources. Additionally, it is also possible to increase the amount of electricity from renewable energy sources owing to the innovative technologies. Thus, renewable energy investors should follow up-to-date technological developments so that it will be possible to reduce the cost of renewable energy investments.
关键词:
Cultural difference;Ensemble coding;In-group vs. out-group faces;Subjective similarity
摘要:
It is well established that ensemble coding is regulated by physical similarity and variance in a set of stimuli. For example, observers are more accurate at judging the mean size of objects in a set if the overall size variance in the set is small. However, sometimes similarity among set members can be purely subjective. For example, faces from another race tend to look more similar than faces from one’s own race. Very little is known about whether such subjective similarity also regulates ensemble coding in the same manner as objective similarity. To investigate this question, we had British and Chinese participants view sets of four faces that were of either own-race or other-race, own-gender or other-gender. After viewing each set the task was to judge whether a test face was presented in the set. Our results showed that, as demonstrated in prior research, participants often mistook a morphed set average to be a member of the set. Critically, this tendency to average a face set was not stronger for other-race faces. Hence contrary to objective similarity, subjectively perceived similarity in the other-race faces does not facilitate ensemble coding. The results in our British group also replicated de Fockert and Gautrey’s (Psychonomic Bulletin & Review 20 (3), 468-473, 2013) own-gender effect, where observers showed more averaging for own-gender faces. However, our Chinese subjects displayed the same level of averaging for both genders. This suggests a cultural difference in ensemble coding, where the own-gender bias may be overridden by a stronger tendency to employ ensemble coding in Chinese participants.
作者机构:
[Xiao, Pengnan; Zhou, Yong; Li, Xigui] Cent China Normal Univ, Key Lab Geog Proc Anal & Simulat Hubei Prov, Wuhan 430079, Peoples R China.;[Xiao, Pengnan; Zhou, Yong; Li, Xigui] Cent China Normal Univ, Coll Urban & Environm Sci, Wuhan 430079, Peoples R China.;[Li, Xigui] Hunan Agr Univ, Coll Landscape Architecture & Art Design, Changsha 410128, Peoples R China.;[Xu, Jie] Hubei Univ, Fac Resources & Environm Sci, Wuhan 430079, Peoples R China.;[Zhao, Chong] Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430023, Peoples R China.
关键词:
heavy metals;agriculture land;bibliometric analysis;CiteSpace;VOSviewer;citation analysis;reference co-citation analysis
摘要:
A great amount of negative influence on human existence and environmental protection has been brought on by heavy metal pollution in agriculture soil. Thus, major awareness has been diverted to the evaluation of heavy metals (EHM) in agricultural land, which is used to improve the environment and ensure people's health. Based on 3759 publications collected from the Web of Science Core Collection(TM) (WoS), this paper's aim is to illustrate a comprehensive bibliometric run-through and visualization of the subject of EHM. Contingent on influential authors, top institutions, keywords are discussed in detail. Afterwards, the ruling publications and focal assemblage of EHM and leading publications are analyzed to discover the main research topics, according to citation analysis and reference co-citation analysis. The main motive of the paper is to assist research workers interested in the area of EHM determine the ongoing potential research opportunities and hotspots.
关键词:
business model innovation;dynamic capability;supply chain business model;tea supply chain;user‐driven innovation
摘要:
This research explores how focal tea companies facilitate supply chain business model innovation (SCBMI) to meet consumer demands and achieve sustainable development. By applying a case study method and dynamic capability theory, we find that: (1) the end-user innovation-driven is the precondition for tea SCBMI; (2) the user-driven innovation leads to the change of the supply chain focal company dynamic capabilities and the tea supply chain network structure, and thus promote the tea SCBMI; (3) SCBMI will, in turn, enhance the focal company's dynamic capabilities and promote the change of tea supply chain network structure in order to meet the consumers' changing demands. Our research suggests that the supply chain should pay attention to the construction of dynamic capabilities and proactively manage supply chain network structure. Ultimately, the entire supply chain business model will continuously adapt to the external changes and achieve sustainable development in the long term.
摘要:
BACKGROUND: Few studies exist on sibling bullying or even sibling aggression more generally in the past 30 years. Studies of sibling bullying have shown that sibling bullying may associate with depression, anxiety, self-harm, suicide ideation in early adulthood. Nevertheless, few studies have explored the relationship between sibling victimization types and the occurrence of psychosis, not to mention that psychotic-like experiences (PLEs) always occur before psychotic disorders. Therefore, the current study aims to examine the association between sibling bullying and PLEs among children age 11-16 years in China. METHOD: This is a cross-sectional study which included 3231 students from eight junior middle schools in three cities of Hunan Province, China. Frequency and types of sibling bullying was assessed with Sibling Bullying Questionnaire and PLEs was assessed with Community Assessment Psychic Experiences-42. RESULTS: The percentage of sibling bullying were 12.9% for victimization and 10.8% for perpetration. Sibling bullying plays as an independent influence factor for all subtypes of PLEs, and verbal victimization was the most important risk factor in developing different subtypes of PLEs followed by physical victimization and verbal perpetration. CONCLUSION: The current study found that sibling bullying is associated with PLEs. Intervention programs should be conducted to focus on those children and adolescents who are involved in multiple types of sibling victimization or perpetration.
关键词:
Adolescents;depressive symptoms;latent class analysis;Center for Epidemiologic Studies Depression Scale
摘要:
Although extensive literature has addressed depression among adolescents, few studies have emphasized the classification features of depressive symptoms in adolescents. To gain insight into the hierarchy and heterogeneity of depression in adolescents based on symptoms, 5086 adolescents completed the Chinese version of the Center for Epidemiological Studies Depression Scale (CES-D). Using Latent Class Analysis (LCA), we identified different subgroups of adolescents based on depressive symptoms. Multivariate logistic regression analysis was implemented to examine the relations between latent classes and demographic covariates. Four latent classes of individuals with depressive symptoms displaying a pattern of hierarchical organization were identified. The four classes were ordered by the degree of severity, ranging from the students reporting the highest number of depressive symptoms to the lowest number: "probable clinical depression", "subthreshold depression", "mild depression" and "low depression", accounting for 8.2%, 19.2%, 41.8% and 30.8% of total sample respectively. Further analyses revealed that compared to the "mild depression" class, the rest of three classes differed significantly across age groups and only child (vs. sibling) status. In conclusion, classifying the groups of adolescents based on features of depressive symptoms is potentially useful for understanding risk factors and developing tailored prevention and intervention programs for this age group.
摘要:
This paper investigates risk spillovers and hedge strategies between global crude oil markets and stock markets. In the paper, we propose a multivariate long memory and asymmetry GARCH framework that integrates state-dependent regime switching in the mean process with multivariate long memory and asymmetry GARCH in the variance process. Our results first show that there are linear risk spillovers running from the US stock markets to the WTI oil market in the short term. However, the linear risk spillover effect running from the oil market to the US stock market can only exist in the long term. In addition, there is a bidirectional linear risk spillover effect between the European stock markets and the Brent oil market in the short and long terms. Furthermore, there is no linear risk spillover effect between the Dubai oil market and the Chinese stock market. Second, the nonlinear risk spillovers running from the WTI oil market to the US stock market can be found in the tranquil regime. Moreover, there is also a nonlinear risk spillover effect running from the European stock markets to the Brent oil market in the tranquil regime. In addition, the nonlinear risk spillover effect running from the Brent oil markets to the European stock market can be found in the crisis regime. Furthermore, there is bidirectional nonlinear Granger causality between the Dubai crude oil market and the Chinese stock market in the tranquil regime. Finally, dynamic hedge effectiveness shows that the regime switching process combined with long memory and asymmetry behavior seems to be a plausible and feasible way to conduct hedge strategies between the global crude oil markets and stock markets.
作者机构:
[Mo, Ping; Zhao, Yunlin; Xu, Zhenggang; Fan, Li] Cent South Univ Forestry & Technol, Hunan Res Ctr Engn Technol Utilizat Environm & Re, Changsha 410004, Peoples R China.;[Yang, Guiyan; Fan, Li] Minist Agr & Rural Affairs, Key Lab Microbial Resources Collect & Preservat, Beijing 100081, Peoples R China.;[Zhao, Weiping] Hunan Agr Univ, Sch Business, Changsha 410128, Peoples R China.;[Xu, Zhenggang; Feng, Wendan; Yang, Guiyan] Northwest A&F Univ, Coll Forestry, Key Lab Natl Forestry & Grassland Adm Management, Xianyang 712100, Peoples R China.;[Mo, Ping] Hunan Univ Arts & Sci, Coll Life & Environm Sci, Changde 415000, Peoples R China.
通讯机构:
[Xu, Zhenggang] C;[Xu, Zhenggang] N;Cent South Univ Forestry & Technol, Hunan Res Ctr Engn Technol Utilizat Environm & Re, Changsha 410004, Peoples R China.;Northwest A&F Univ, Coll Forestry, Key Lab Natl Forestry & Grassland Adm Management, Xianyang 712100, Peoples R China.
关键词:
microbial diversity;bacterial community structure;illumina MiSeq sequencing;mining area soil
摘要:
Soil microorganisms play an important role in regulating a variety of ecological functions. In recent years, the research on ecological restoration after mining has made people more aware of the importance of microbial diversity to ecosystem restoration. The present study investigated the effect of ecological restoration on microbial community structure and its relationship with soil physicochemical properties in the Dabaoshan mining area, China. High throughput sequencing technology was used to analyze and compare the microbial community composition of three types of soil (undamaged area, unrestoration area, and ecological restoration area). The contents of organic carbon, total nitrogen, and total phosphorus were 2.38-12.97 g/kg, 0.39-1.62 g/kg, and 0.99-1.51 g/kg, respectively. In different soil states, undamaged area and ecological restoration area were significantly higher than those in unrestoration area. The results showed that the structure of soil microbial community was significantly correlated with soil physicochemical properties, and formations in the repaired and unrepaired soils were different. Operational Taxonomic Unit (OTU) cluster analysis and diversity index analysis showed that soil microbial community changed at phylum and genus levels. The results showed that at the phylum level, all soil samples contained Firmicutes, Proteobacteria, and actinobacteria. Firmicutes and Proteobacteria of the ecological restoration area (ER1, ER2) were the highest in relative abundance compared with other samples, accounting for more than 45%. Proteobacteria and Acidobacteria were the dominant phylum in the undamaged area (UD), accounting for 32.7% and 22.3%, respectively. It can be seen that soil restoration produced a new dominant population, and Proteobacteria showed an absolute competitive advantage in the mining soil.
通讯机构:
[Li, Xiaoma] H;Hunan Agr Univ, Coll Landscape Architecture & Art Design, Inst Educ, Hunan Prov Key Lab Landscape Ecol & Planning & De, Changsha 410128, Peoples R China.
关键词:
spatiotemporal change;pseudo-invariant feature;relative normalization;urban expansion;urban heat island
摘要:
The Landsat land surface temperature (LST) product is widely used to understand the impact of urbanization on surface temperature changes. However, directly comparing multi-temporal Landsat LST is challenging, as the observed LST might be strongly affected by climatic factors. This study validated the utility of the pseudo-invariant feature-based linear regression model (PIF-LRM) in normalizing multi-temporal Landsat LST to highlight the urbanization impact on temperature changes, based on five Landsat LST images during 2000–2018 in Changsha, China. Results showed that LST of PIFs between the reference and the target images was highly correlated, indicating high applicability of the PIF-LRM to relatively normalize LST. The PIF-LRM effectively removed the temporal variation of LST caused by climate factors and highlighted the impacts of urbanization caused land use and land cover changes. The PIF-LRM normalized LST showed stronger correlations with the time series of normalized difference of vegetation index (NDVI) than the observed LST and the LST normalized by the commonly used mean method (subtracting LST by the average, respectively for each image). The PIF-LRM uncovered the spatially heterogeneous responses of LST to urban expansion. For example, LST decreased in the urban center (the already developed regions) and increased in the urbanizing regions. PIF-LRM is highly recommended to normalize multi-temporal Landsat LST to understand the impact of urbanization on surface temperature changes from a temporal point of view.