Rural light pollution from shale gas development and associated sleep and subjective well-being

The shale oil and gas boom has had large economic, environmental, and social impacts on rural communities in the United States. This study provides novel estimates of the impacts of shale oil and gas development on light pollution in rural areas of the United States. Using nationwide, time-calibrated DMSP-OLS database from 2000 to 2012, we find robust evidence that the shale oil and gas boom significantly increased light pollution in rural areas. We then assess associations between horizontal drilling and subjective self-rated health using nationwide data from the Behavioral Risk Factor Surveillance System (BRFSS) from 2000 to 2012. Our findings suggest that insufficient sleep and poor health (physical or mental) are associated with increased drilling in rural areas. These results provide support for drilling-related light pollution as an additional environmental pathway of concern for public health beyond the mechanisms of air or water pollution.     

Effects of augmented reality technology characteristics on customer citizenship behavior

In recent years, augmented reality (AR) technology has received considerable attention from academics and practitioners. Although AR technology has a bright side, its dark side has been relatively overlooked. Therefore, this study aimed to investigate the effects of AR technology characteristics on customer citizenship behavior via two conflicting mechanisms: customer immersion and customer fatigue. The study also explored the boundary conditions of customer experience. A total of 247 questionnaires were collected from customers who had prior experience of using IKEA's AR mobile shopping application. A structured model was analyzed using SmartPLS 3 and PROCESS Macro for mediation and moderated mediation effects. The study enriches the current knowledge on AR technology by demonstrating that AR technology can lead to customer citizenship behavior in relation to a brand's AR technology. Interestingly, customer immersion was found to positively mediate the relationship, but customer fatigue was found to negatively mediate it. Furthermore, customer experience was found to strengthen the positive mediation effect of customer immersion and weaken the negative mediation effect of customer fatigue.     

Are social media bad for your employees? Effects of at-work break activities on recovery experiences

Since social media has become a fundamental part of the daily activities of people, the purpose of this study was to explore social media use by focusing on job demands that may explain why employees perceive social media are vital for them at work. Further, this study seeks to understand how employees use social media at work to experience recovery. Questionnaires were collected from current frontline hospitality non-managerial and managerial employees in the United States. Structural equation modeling was employed to analyze data. Results of the study confirm that at-work break activities including social and non-media break activities can be a channel for employees to experience recovery and deal with job demands. Moreover, the results suggest that at-work break activities are an important mediator between job demands and recovery experiences. Social media break activities also moderated the mediation effect of non-social media break activities between job demands and recovery experiences.     

Does local government competition aggravate haze pollution? A new perspective of factor market distortion

Haze pollution has become a new threat to China's sustainable development, but it may be that local government behaviour can play an important role in the prevention and control of pollutants. A dynamic spatial autoregressive (SAR) model is used to study the relationship between local government competition and haze pollution. To further explore the indirect impact of factor market distortion on haze pollution and control potential endogeneity problems, a newly developed intermediary effect model that incorporates the characteristics of the generalized method of moments (GMM) is utilized to explore how factor market distortion indirectly affects haze pollution. The research results show that regional haze pollution in China is characterized by significant spatial correlation, and local government competition has a positive impact on haze pollution; that is, local government competition exacerbates haze pollution. In general, local government competition not only directly leads to an increase in haze pollution but also further intensifies it by distorting the local factor market, and the intermediary role of factor market distortion is approximately 7.04%. The results of the regional inspection found that competition among local governments in the eastern region did not lead to haze pollution, and distortion of the factor market did not exist as an intermediary effect. However, both direct and intermediary effects are significant in the central and western regions. Therefore, an official performance appraisal system that includes ecological constraints should be established to guide the benign transformation of local government competition, and an environmental management mechanism must be developed for joint prevention and control to reduce haze pollution. In addition, the free flow of factors and marketization are equally important.     

深化学科认知与构建中国特色社会主义政治经济学理论体系

对学科的认知包括认识学科内涵、学科性质与任务、学科发展进路等核心问题,关系到如何构建学科体系,是学科建设的重要内容。从深化学科认知的视角,中国特色社会主义政治经济学的学科发展与理论体系构建,要坚持几个重大原则,包括把中国特色社会主义政治经济学建立在历史唯物主义的基础之上;要以生产关系分析为核心来构建中国特色社会主义政治经济学的理论范式;坚持以人民为中心是中国特色社会主义政治经济学的本质属性;把共同富裕作为中国特色社会主义政治经济学的逻辑主线;以问题为导向研究新时代中国特色社会主义建设的重大理论与实践问题;《中国特色社会主义政治经济学》教材要体现学科的创新发展。     

二噁英的理化性质及在乳及乳制品中污染的研究进展

本文主要分析了二噁英的理化性质,重点介绍了乳及乳制品中二噁英的污染情况,并提出有效措施给予预防和解决,以有效降低二噁英在乳及乳制品中的危害性,确保乳及乳制品行业的健康发展。通过对二噁英的理化性质进行研究,为乳及乳制品的安全生产提供可靠保障,以实现经济与社会效益的最大化。     

基于主客视角的苏南传统村落旅游地乡愁的时间特征

“记得住乡愁”是乡村旅游和乡村振兴的重要内容。本文基于居民和游客视角,以苏南传统村落为案例地,探讨乡愁的时间特征。结果表明：（1）乡愁主体方面：相对暂居村落的外来人口,三代以上的世代居民对家乡乡愁情感更加强烈;出生在1950—1959和1960—1978年间的这两代游客较多成长在乡村,乡愁文化感知相对更高;离开家乡在外工作生活时间越长的游客在传统村落旅游时,其乡愁情感和乡愁记忆比起未离开家乡或离开家乡较短的人更加强烈。（2）乡愁触点方面：触发居民和游客乡愁的季节集中在秋天和冬天,天气集中在下雨和落雪时,时辰集中在深夜和傍晚时,节庆集中在春节、中秋节、清明节和家乡特有节日,假日主要集中在周末、寒假和“十一”国庆假期。（3）乡愁记忆方面：主客乡愁记忆都主要集中在童年,其次是青少年,最后是成年和老年;游客产生乡愁的频率比居民频率相对高。（4）乡愁载体回忆顺序：主客乡愁载体都会提到“家”和“乡”相关场所和空间,其回忆的顺序是家人、家、家乡和国家。文章最后总结了乡愁旅游开发的启示。     

COVID-19: The effects of job insecurity on the job engagement and turnover intent of deluxe hotel employees and the moderating role of generational characteristics

COVID-19 has caused an unprecedented crisis in all industries around the world. This study sought to verify that job insecurity, as perceived by deluxe hotel employees, significantly affects their job engagement and turnover intent and to determine the moderating effect of generational characteristics. The finding showed that perceptions of job insecurity had negative effects on the engagement of deluxe hotel employees. Also, employees’ job engagement can decrease turnover intent. The engagement of employees fully mediated the relationship between perceptions of job insecurity and turnover intent, and job insecurity caused by COVID-19 had a greater influence on Generation Y than Generation X in reducing job engagement, indicating that the negative impact of job insecurity is higher in Generation Y.     

土壤污染防治法背景下的城乡绿地系统建设：趋势与对策

《中华人民共和国土壤污染防治法》的颁布标志着中国将形成完善的土壤污染防治法律体系，建立从污染土壤调查、修复、风险防控、监测到场地再利用，从环境标准到规划管理的全方位制度。生态文明制度建设的宏观背景，再加上中国土壤污染严重、规模大、修复难、成本高、周期长等特征，将导致大量污染场地转变为绿地或生态用地，最终对绿地系统的数量与规模、布局与功能、规划与管理、环境质量标准等多个维度产生实质性影响。分析这一趋势，对其影响提出预判，最终提出对策建议。     

闽侯县闲置农地生态安全评价研究

[目的]根据闽侯县农用地闲置情况,结合当地社会经济及生态环境发展情况,深入分析闽侯县闲置农地的生态安全发展水平。[方法]建立闽侯县闲置农地生态安全评价指标体系,分别从农村垃圾处理点数量、财政支农资金、外部进入农村投资、农业生产总值、种粮补贴、自然灾害、农业技术水平、农村生物的多样性程度、农村家庭收入结构、农村生态补偿金额、农地的整理规模及环保支出占GDP比重共确定12个指标进行深入研究,运用普通最小二乘法对设计的多元线性回归模型进行回归,进一步对闽侯县闲置农地的生态安全水平进行评价。[结果]农村垃圾处理点数量、财政支农资金、种粮补贴、环保支出占GDP比重、生态补偿金额、生物多样性程度对闽侯县闲置农地生态安全水平起到促进作用,呈正相关趋势;自然灾害则与闲置农地生态安全水平呈负相关趋势。[结论]整体看来,闽侯县闲置农地的生态安全水平主要受到当地经济、环境及生态基础三大因素的影响。