Established in 1958,Sichuan Academy of Social Sciences(SASS)is a public institutionguided by the People’s Government of Sichuan Province.It is a comprehensive and specializedresearch institution in social sciences th...Established in 1958,Sichuan Academy of Social Sciences(SASS)is a public institutionguided by the People’s Government of Sichuan Province.It is a comprehensive and specializedresearch institution in social sciences that integrates research,education,editing,andconsulting services.It holds the registered trademark of“Tianfu Think Tank”and owns twocampuses:Baihuatan and Banzhuyuan.SASS consists of 16 research institutes as well as functional and educational departments,such as the Party Committee and the Graduate School.Currently,it has 450 employees,including a significant number of reputable scholars and recipients of national and provincial honors in the fields of culture and economy,such as national-level candidates for the Hundred,Thousand and Ten Thousand Talents Project,Leading Talent in Philosophy and Social Sciences in the National Ten Thousand Talents Program,participants in China’s Four-pronged Publicity Talent Program,Academic and Technology Leader of Sichuan Province,and Expert of Sichuan Province with Outstanding Contributions.展开更多
Contemporary Social Sciences is an English-language journal founded by Sichuan Academy of Social Sciences(SASS)in March 2016.It is China’s first and only English academic journal established by a local academy of soc...Contemporary Social Sciences is an English-language journal founded by Sichuan Academy of Social Sciences(SASS)in March 2016.It is China’s first and only English academic journal established by a local academy of social sciences,as well as Sichuan’s only English academic journal in humanities and social sciences with a CN serial number.As a publication run in line with the requirements of China’s press and publication authority,Contemporary Social Sciences publishes outstanding research in the field of social sciences in China and also includes high-quality research work by foreign scholars on the development of China’s western regions and its reform and opening up.The aim is to help promote China’s academic achievements to the world and give China a stronger voice in the global community of social sciences.展开更多
Contemporary Social Sciences publishes outstanding research in the field of social sciences in China and also includes high-quality research work by foreign scholars on the development of China’s western regions and ...Contemporary Social Sciences publishes outstanding research in the field of social sciences in China and also includes high-quality research work by foreign scholars on the development of China’s western regions and its reform and opening up.The aim is to help promote China’s academic achievements to the world and give China a stronger voice in the global community of social sciences.The scopes of research fields for consideration include,but not limited to political science,economics,literature,linguistics,journalism and communication,education,sociology,philosophy,history,law,and interdisciplinary research.展开更多
Background:In the Chinese context,the impact of short video applications on the psychological well-being of older adults is contested.While often examined through a pathological lens of addiction,this perspective may ...Background:In the Chinese context,the impact of short video applications on the psychological well-being of older adults is contested.While often examined through a pathological lens of addiction,this perspective may overlook paradoxical,context-dependent positive outcomes.Therefore,the main objective of this study is to challenge the traditional Compensatory Internet Use Theory by proposing and testing a chained mediation model that explores a paradoxical pathway from social support to life satisfaction via problematic social media use.Methods:Data were collected between July and August 2025 via the Credamo online survey platform,yielding 384 valid responses from Chinese older adults aged 60 and above.Key constructs were assessed using the Social Support Rating Scale(SSRS),Bergen Social Media Addiction Scale(BSMAS),Simplified UCLA Loneliness Scale,and Satisfaction with Life Scale(SWLS).A chained mediation model was tested using stepwise regression and non-parametric bootstrapping(5000 resamples),controlling for age,gender,household income,and health status.Results:The analysis revealed a paradoxical pathway,which was clarified by a key statistical suppression effect.Social support significantly and positively predicted problematic usage(β=0.157,p=0.002).After controlling for the suppressor effect of social support,problematic usage in turn negatively predicted social connectedness(β=−0.177,p<0.001).Finally,reduced social connectedness—reflecting a state of solitude—positively predicted life satisfaction(β=−0.227,p<0.001).Conclusion:The findings suggest that for older adults with sufficient offline social support,these resources may serve a“social empowerment”function.This empowerment allows behaviors measured as“problematic usage”to be theoretically reframed as a form of“deep immersive entertainment”.This immersion appears to occur alongside a state of“high-quality solitude”,which ultimately is associated with higher life satisfaction.This study provides a novel,non-pathological theoretical perspective on the consequences of high engagement with emerging social media,offering empirical grounds for non-abstinence-based intervention strategies.展开更多
The Luang Prabang Maintenance Management Center of the ChinaLaos Railway is still brightly lit late into the night.Zhao Renjie,director of power supply,is overseeing catenary maintenance with steady concentration.Next...The Luang Prabang Maintenance Management Center of the ChinaLaos Railway is still brightly lit late into the night.Zhao Renjie,director of power supply,is overseeing catenary maintenance with steady concentration.Next to him are Lao team leader Phouthong and his apprentice,catenary worker Khang Meng.Their busy figures form a routine yet vivid snapshot of therailway's daily operations.展开更多
Transforming urban spatial structures to promote green and low-carbon development is an effective strategy.Although prior studies have examined the impact of urban polycentricity on carbon emissions and economic devel...Transforming urban spatial structures to promote green and low-carbon development is an effective strategy.Although prior studies have examined the impact of urban polycentricity on carbon emissions and economic development,research on its role in the synergistic relationship between these factors regarding carbon emission efficiency is limited.Furthermore,existing literature often overlooks nonlinear effects and interactions with other urban variables.This paper analyzed data from 295 Chinese cities in 2020,calculating urban population polycentricity,population dispersion indices,and carbon emission efficiency.Utilizing local spatial autocorrelation tools,we reveal interactions among urban population polycentricity,dispersion,carbon emissions,and carbon emission efficiency.We then employ a gradient boosting decision tree model(GBDT)to explore nonlinear and synergistic effects of polycentric urbanization.Key findings include:1)polycentric urbanization in Chinese cities exhibits significant spatial differentiation characteristics.The Polycentricity index is relatively high in economically developed eastern coastal regions with an overall low level,carbon emissions are concentrated in industrialized north-central cities and some Yangtze River Delta hubs,and carbon emission efficiency is the highest in the Yangtze River Delta while relatively low in Northeast China;there are significant spatially heterogeneous interaction characteristics among population polycentricity,population dispersion,carbon emissions,and carbon emission efficiency.2)Urban population polycentricity contributes 9.42%to total carbon emissions and 6.24%to carbon emission efficiency.3)The polycentricity index has a nonlinear impact on carbon emissions and carbon emission efficiency:no significant effect when below 0.50 or above 0.55,increased carbon emissions in 0.50-0.53,and reduced carbon emissions with improved efficiency in 0.53-0.55.4)The polycentricity index has an interaction effect with other variables;specifically,when the polycentricity index is between 0.53 and 0.55,its interaction with urban gross domestic product(GDP),urban population,urban built-up area,green coverage rate in built-up areas,urban technological expenditure,and the proportion of the output value of the secondary industry will reduce carbon emissions and improve carbon emission efficiency.These findings enhance the understanding of urban spatial structures and carbon emissions,providing valuable insights for policymakers in developing green and low-carbon strategies.展开更多
This paper employs archival documents to research how the Gold Coast colonial government worked with European women medical doctors at preventive health to sustain infant and child welfare clinics.After the First Worl...This paper employs archival documents to research how the Gold Coast colonial government worked with European women medical doctors at preventive health to sustain infant and child welfare clinics.After the First World War,the objective of the colonial government and medical officers was to prevent child mortality and child morbidity.European women medical doctors working with the government and in private practice at infant and child welfare clinics cared for African pregnant women,mothers,and children not older than three years old.European women medical doctors at infant and child welfare clinics educated the community.In 1932,the Great Depression peaked and Percy Selwyn-Clarke in the health service needed to increase funds and staff.Selwyn-Clarke established the Gold Coast Local Branch of the British Red Cross Society to work at the infant and child welfare clinics.展开更多
Crossing border e‐commerce develops rapidly because of e‐commerce development.There are three typical modes of crossing border e‐commerce,and they are B2B(business to business),B2C(business to customer),and C2C(cus...Crossing border e‐commerce develops rapidly because of e‐commerce development.There are three typical modes of crossing border e‐commerce,and they are B2B(business to business),B2C(business to customer),and C2C(customer to customer).With the development of social network,a new mode called C2C cross‐border e‐commerce by SC(social commerce)is occurring.This new kind of e‐commerce has several advantages,like high trust between seller and customer and personalized consumption for customers.But there are still some problems of C2C cross‐border e‐commerce by SC,which are tax evasion and no rule to regulate.To solve these problems,several measures should be taken into account.In the area of Customs Law,it should refine the standard of luggage and post package taxation.The Custom should strengthen supervision for international post package.To deal with the problem that there is no law to regulate C2C cross‐border e‐commerce by SC,Contract Law is suitable before the E‐commerce Law enacts.展开更多
Contemporary Social Sciences publishes outstanding research in the field of social sciences in China and also includes high-quality research work by foreign scholars on the development of China’s western regions and ...Contemporary Social Sciences publishes outstanding research in the field of social sciences in China and also includes high-quality research work by foreign scholars on the development of China’s western regions and its reform and opening up.The aim is to help promote China’s academic achievements to the world and give China a stronger voice in the global community of social sciences.The scopes of research fields for consideration include,but not limited to political science,economics,literature,linguistics,journalism and communication,education,sociology,philosophy,history,law,and interdisciplinary research.展开更多
Dear Editor,This letter is concerned with the evolutionary dynamics of cooperative strategies in social dilemma situations.Stochastic punishment has been proposed,in which whether an individual acts as a punisher or n...Dear Editor,This letter is concerned with the evolutionary dynamics of cooperative strategies in social dilemma situations.Stochastic punishment has been proposed,in which whether an individual acts as a punisher or not is stochastic and depends on its preference for punishment.Meanwhile,both the cost of punishment and whether a defector would be punished are also stochastic.In previous models,the cost of punishment is considered to be either constant or proportional to the number of individuals to be punished.Furthermore,the hypothesis that all defectors should be penalized is frequently adopted.Actually,some defectors may refrain from being punished due to the presence of noise or the limitation of the punishment cost,and the cost of punishment is also dependent on the number of punishers.Thus,we establish an analytic model of stochastic punishment for infinite and well-mixed populations,investigate the effects of stochastic punishment on the evolution of cooperation,and analyze how to support the evolution of cooperation effectively when the stochastic punishment is possible.The objective of this letter is to design a cooperation-promoting stochastic punishment that will allow the system to evolve to full cooperation.The replicator equations have been used to explore the evolutionary dynamics of cooperation under stochastic punishment,and the conditions under which cooperation is favored by natural selection have been specified.展开更多
文摘Established in 1958,Sichuan Academy of Social Sciences(SASS)is a public institutionguided by the People’s Government of Sichuan Province.It is a comprehensive and specializedresearch institution in social sciences that integrates research,education,editing,andconsulting services.It holds the registered trademark of“Tianfu Think Tank”and owns twocampuses:Baihuatan and Banzhuyuan.SASS consists of 16 research institutes as well as functional and educational departments,such as the Party Committee and the Graduate School.Currently,it has 450 employees,including a significant number of reputable scholars and recipients of national and provincial honors in the fields of culture and economy,such as national-level candidates for the Hundred,Thousand and Ten Thousand Talents Project,Leading Talent in Philosophy and Social Sciences in the National Ten Thousand Talents Program,participants in China’s Four-pronged Publicity Talent Program,Academic and Technology Leader of Sichuan Province,and Expert of Sichuan Province with Outstanding Contributions.
文摘Contemporary Social Sciences is an English-language journal founded by Sichuan Academy of Social Sciences(SASS)in March 2016.It is China’s first and only English academic journal established by a local academy of social sciences,as well as Sichuan’s only English academic journal in humanities and social sciences with a CN serial number.As a publication run in line with the requirements of China’s press and publication authority,Contemporary Social Sciences publishes outstanding research in the field of social sciences in China and also includes high-quality research work by foreign scholars on the development of China’s western regions and its reform and opening up.The aim is to help promote China’s academic achievements to the world and give China a stronger voice in the global community of social sciences.
文摘Contemporary Social Sciences publishes outstanding research in the field of social sciences in China and also includes high-quality research work by foreign scholars on the development of China’s western regions and its reform and opening up.The aim is to help promote China’s academic achievements to the world and give China a stronger voice in the global community of social sciences.The scopes of research fields for consideration include,but not limited to political science,economics,literature,linguistics,journalism and communication,education,sociology,philosophy,history,law,and interdisciplinary research.
基金funded by the Guangxi Philosophy and Social Science Research Project,grant number 24XWC002.
文摘Background:In the Chinese context,the impact of short video applications on the psychological well-being of older adults is contested.While often examined through a pathological lens of addiction,this perspective may overlook paradoxical,context-dependent positive outcomes.Therefore,the main objective of this study is to challenge the traditional Compensatory Internet Use Theory by proposing and testing a chained mediation model that explores a paradoxical pathway from social support to life satisfaction via problematic social media use.Methods:Data were collected between July and August 2025 via the Credamo online survey platform,yielding 384 valid responses from Chinese older adults aged 60 and above.Key constructs were assessed using the Social Support Rating Scale(SSRS),Bergen Social Media Addiction Scale(BSMAS),Simplified UCLA Loneliness Scale,and Satisfaction with Life Scale(SWLS).A chained mediation model was tested using stepwise regression and non-parametric bootstrapping(5000 resamples),controlling for age,gender,household income,and health status.Results:The analysis revealed a paradoxical pathway,which was clarified by a key statistical suppression effect.Social support significantly and positively predicted problematic usage(β=0.157,p=0.002).After controlling for the suppressor effect of social support,problematic usage in turn negatively predicted social connectedness(β=−0.177,p<0.001).Finally,reduced social connectedness—reflecting a state of solitude—positively predicted life satisfaction(β=−0.227,p<0.001).Conclusion:The findings suggest that for older adults with sufficient offline social support,these resources may serve a“social empowerment”function.This empowerment allows behaviors measured as“problematic usage”to be theoretically reframed as a form of“deep immersive entertainment”.This immersion appears to occur alongside a state of“high-quality solitude”,which ultimately is associated with higher life satisfaction.This study provides a novel,non-pathological theoretical perspective on the consequences of high engagement with emerging social media,offering empirical grounds for non-abstinence-based intervention strategies.
文摘The Luang Prabang Maintenance Management Center of the ChinaLaos Railway is still brightly lit late into the night.Zhao Renjie,director of power supply,is overseeing catenary maintenance with steady concentration.Next to him are Lao team leader Phouthong and his apprentice,catenary worker Khang Meng.Their busy figures form a routine yet vivid snapshot of therailway's daily operations.
基金Under the auspices of National Natural Science Foundation of China(No.42571300)。
文摘Transforming urban spatial structures to promote green and low-carbon development is an effective strategy.Although prior studies have examined the impact of urban polycentricity on carbon emissions and economic development,research on its role in the synergistic relationship between these factors regarding carbon emission efficiency is limited.Furthermore,existing literature often overlooks nonlinear effects and interactions with other urban variables.This paper analyzed data from 295 Chinese cities in 2020,calculating urban population polycentricity,population dispersion indices,and carbon emission efficiency.Utilizing local spatial autocorrelation tools,we reveal interactions among urban population polycentricity,dispersion,carbon emissions,and carbon emission efficiency.We then employ a gradient boosting decision tree model(GBDT)to explore nonlinear and synergistic effects of polycentric urbanization.Key findings include:1)polycentric urbanization in Chinese cities exhibits significant spatial differentiation characteristics.The Polycentricity index is relatively high in economically developed eastern coastal regions with an overall low level,carbon emissions are concentrated in industrialized north-central cities and some Yangtze River Delta hubs,and carbon emission efficiency is the highest in the Yangtze River Delta while relatively low in Northeast China;there are significant spatially heterogeneous interaction characteristics among population polycentricity,population dispersion,carbon emissions,and carbon emission efficiency.2)Urban population polycentricity contributes 9.42%to total carbon emissions and 6.24%to carbon emission efficiency.3)The polycentricity index has a nonlinear impact on carbon emissions and carbon emission efficiency:no significant effect when below 0.50 or above 0.55,increased carbon emissions in 0.50-0.53,and reduced carbon emissions with improved efficiency in 0.53-0.55.4)The polycentricity index has an interaction effect with other variables;specifically,when the polycentricity index is between 0.53 and 0.55,its interaction with urban gross domestic product(GDP),urban population,urban built-up area,green coverage rate in built-up areas,urban technological expenditure,and the proportion of the output value of the secondary industry will reduce carbon emissions and improve carbon emission efficiency.These findings enhance the understanding of urban spatial structures and carbon emissions,providing valuable insights for policymakers in developing green and low-carbon strategies.
文摘This paper employs archival documents to research how the Gold Coast colonial government worked with European women medical doctors at preventive health to sustain infant and child welfare clinics.After the First World War,the objective of the colonial government and medical officers was to prevent child mortality and child morbidity.European women medical doctors working with the government and in private practice at infant and child welfare clinics cared for African pregnant women,mothers,and children not older than three years old.European women medical doctors at infant and child welfare clinics educated the community.In 1932,the Great Depression peaked and Percy Selwyn-Clarke in the health service needed to increase funds and staff.Selwyn-Clarke established the Gold Coast Local Branch of the British Red Cross Society to work at the infant and child welfare clinics.
文摘Crossing border e‐commerce develops rapidly because of e‐commerce development.There are three typical modes of crossing border e‐commerce,and they are B2B(business to business),B2C(business to customer),and C2C(customer to customer).With the development of social network,a new mode called C2C cross‐border e‐commerce by SC(social commerce)is occurring.This new kind of e‐commerce has several advantages,like high trust between seller and customer and personalized consumption for customers.But there are still some problems of C2C cross‐border e‐commerce by SC,which are tax evasion and no rule to regulate.To solve these problems,several measures should be taken into account.In the area of Customs Law,it should refine the standard of luggage and post package taxation.The Custom should strengthen supervision for international post package.To deal with the problem that there is no law to regulate C2C cross‐border e‐commerce by SC,Contract Law is suitable before the E‐commerce Law enacts.
文摘Contemporary Social Sciences publishes outstanding research in the field of social sciences in China and also includes high-quality research work by foreign scholars on the development of China’s western regions and its reform and opening up.The aim is to help promote China’s academic achievements to the world and give China a stronger voice in the global community of social sciences.The scopes of research fields for consideration include,but not limited to political science,economics,literature,linguistics,journalism and communication,education,sociology,philosophy,history,law,and interdisciplinary research.
基金supported by the National Natural Science Foundation of China(NSFC)(61903080)the Fun-damental Research Funds for the Central Universities(2232023D-26).
文摘Dear Editor,This letter is concerned with the evolutionary dynamics of cooperative strategies in social dilemma situations.Stochastic punishment has been proposed,in which whether an individual acts as a punisher or not is stochastic and depends on its preference for punishment.Meanwhile,both the cost of punishment and whether a defector would be punished are also stochastic.In previous models,the cost of punishment is considered to be either constant or proportional to the number of individuals to be punished.Furthermore,the hypothesis that all defectors should be penalized is frequently adopted.Actually,some defectors may refrain from being punished due to the presence of noise or the limitation of the punishment cost,and the cost of punishment is also dependent on the number of punishers.Thus,we establish an analytic model of stochastic punishment for infinite and well-mixed populations,investigate the effects of stochastic punishment on the evolution of cooperation,and analyze how to support the evolution of cooperation effectively when the stochastic punishment is possible.The objective of this letter is to design a cooperation-promoting stochastic punishment that will allow the system to evolve to full cooperation.The replicator equations have been used to explore the evolutionary dynamics of cooperation under stochastic punishment,and the conditions under which cooperation is favored by natural selection have been specified.
