At its 19th National Congress,the Communist Party of China vowed to“strengthen the financial sector’s ability to serve the real economy.”However,many studies provide evidence of the opposite trend,a problematic“tr...At its 19th National Congress,the Communist Party of China vowed to“strengthen the financial sector’s ability to serve the real economy.”However,many studies provide evidence of the opposite trend,a problematic“transition from the real to the virtual,”among Chinese enterprises.Meanwhile,the investment efficiency of China’s Social Security Fund(SSF),a public fund,attracts much attention.In this context,we use A-share listed companies in China from2009 to 2018 to study the relationship between holding by the SSF and enterprise financialization.We find that SSF holding significantly inhibits financialization and that this effect is non-linear.Mechanism analysis indicates that SSF holding suppresses enterprises’financialization mainly by improving their governance.Moreover,SSF holding more strongly inhibits small-scale(vs.large-scale),state-owned(vs.non-state-owned),and non-eastern(vs.eastern)enterprises in China.Furthermore,SSF holding can alleviate corporate value impairment caused by financialization.The conclusions enrich theoretical research and provide empirical evidence that may help regulatory authorities to guide investment by enterprises and prevent financial risks.展开更多
Based on the theory of polymorphic virtual S-box,the paper presents a symmetric key exchange protocol to solve the problem of session keys delete shared in the computational complexity temporary trading scenario.Both ...Based on the theory of polymorphic virtual S-box,the paper presents a symmetric key exchange protocol to solve the problem of session keys delete shared in the computational complexity temporary trading scenario.Both parties jointly construct a highly nonlinear SPN core algorithm.The paper the connotation of polymorphic cipher theory,making use of the method of self-compiler based expansion factor to collect random parameter sets held by each of the parties containing its own information 5-tuple private keys array Kpa[5]and Kpb[5].The more efficient polymorphism virtual S-box is constructed.The method of secret split for the public key cryptography features can be implemented by symmetry cipher system.The research results will provide a theoretical basis to solve the key exchange problems for short-term communications partner based on symmetric cryptography.展开更多
With the increasing popularity of the Internet and mobile Internet, the Virtual Community （VC） is becoming an important medium for person-to-person communication. To realise the potential of the VC, it is neces- sar...With the increasing popularity of the Internet and mobile Internet, the Virtual Community （VC） is becoming an important medium for person-to-person communication. To realise the potential of the VC, it is neces- sary to cultivate within it good group cohesion and vitality. Using empirical and experimental research methods, this study explores the ef- fect of users＇ trust in the VC Platform （VCP） on group cohesion and vitality and how brand and perceived privacy security can affect us- ers＇ trust in the VC. The research results indi- cate that the brand of the VCP can directly af- fect users＇ trust in the VC, and can also influe- nce it indirectly through users＇ perceived pri- vacy protection and perceived security protec- tion. Further, this study also confu＇ms that the performance of the VC （group cohesion and vitality） is significantly affected by users＇ trust in the VC. The results of this study can provide theoretical guidance for internet companies to maintain and enhance the value of VCs.展开更多
In this article,the virtual element method of the Allen-Cahn equation on a polygon grid is discussed in the fully discrete formulation.With the help of the energy projection operator,we give the corresponding error es...In this article,the virtual element method of the Allen-Cahn equation on a polygon grid is discussed in the fully discrete formulation.With the help of the energy projection operator,we give the corresponding error estimates in the L2 norm and H1 norm.展开更多
The scope of digital journalism is expanding rapidly due to the development of internet tools and digital technologies.In particular,in the future of digital journalism development,one of the main areas of research co...The scope of digital journalism is expanding rapidly due to the development of internet tools and digital technologies.In particular,in the future of digital journalism development,one of the main areas of research coming into theory and practice is the term and concept of"metaverse",which is considered a new branch of digital journalism.We have written this article based on theoretical research on new media concepts,computer technology,and augmented reality with a new perspective on the"future of digital journalism".The wide range of possibilities for accessing metaverse virtual reality environments and technology has reached a level even higher than that for immersive journalism,and some researchers and media organizations have confirmed that this is the new future of digital journalism.展开更多
基金financial support from the Ministry of Education Humanities and Social Sciences Research Project(No.15YJC790095)the Natural Science Foundation of China(No.71602022,71872040)the National Social Science Foundation of China(No.18BG1062,19ZDA097)
文摘At its 19th National Congress,the Communist Party of China vowed to“strengthen the financial sector’s ability to serve the real economy.”However,many studies provide evidence of the opposite trend,a problematic“transition from the real to the virtual,”among Chinese enterprises.Meanwhile,the investment efficiency of China’s Social Security Fund(SSF),a public fund,attracts much attention.In this context,we use A-share listed companies in China from2009 to 2018 to study the relationship between holding by the SSF and enterprise financialization.We find that SSF holding significantly inhibits financialization and that this effect is non-linear.Mechanism analysis indicates that SSF holding suppresses enterprises’financialization mainly by improving their governance.Moreover,SSF holding more strongly inhibits small-scale(vs.large-scale),state-owned(vs.non-state-owned),and non-eastern(vs.eastern)enterprises in China.Furthermore,SSF holding can alleviate corporate value impairment caused by financialization.The conclusions enrich theoretical research and provide empirical evidence that may help regulatory authorities to guide investment by enterprises and prevent financial risks.
基金the National Natural Science Foundation of China under Grant No.61272038 and No.61340059Zhengzhou Academician Workstation Funded Projects+2 种基金the Education Department of Henan Province Science and Technology Research ProjectKey Project of Science and Technology Researchthe Doctor Fund of Zhengzhou University of Light Industry
文摘Based on the theory of polymorphic virtual S-box,the paper presents a symmetric key exchange protocol to solve the problem of session keys delete shared in the computational complexity temporary trading scenario.Both parties jointly construct a highly nonlinear SPN core algorithm.The paper the connotation of polymorphic cipher theory,making use of the method of self-compiler based expansion factor to collect random parameter sets held by each of the parties containing its own information 5-tuple private keys array Kpa[5]and Kpb[5].The more efficient polymorphism virtual S-box is constructed.The method of secret split for the public key cryptography features can be implemented by symmetry cipher system.The research results will provide a theoretical basis to solve the key exchange problems for short-term communications partner based on symmetric cryptography.
基金supported by the National Natural Science Foundation of China under Grants No.71201011,No.71301106,No.71103021the Ministry of Education in China under Grants No.13YJA630084,No.13YJC630034,No.20120005120001
文摘With the increasing popularity of the Internet and mobile Internet, the Virtual Community （VC） is becoming an important medium for person-to-person communication. To realise the potential of the VC, it is neces- sary to cultivate within it good group cohesion and vitality. Using empirical and experimental research methods, this study explores the ef- fect of users＇ trust in the VC Platform （VCP） on group cohesion and vitality and how brand and perceived privacy security can affect us- ers＇ trust in the VC. The research results indi- cate that the brand of the VCP can directly af- fect users＇ trust in the VC, and can also influe- nce it indirectly through users＇ perceived pri- vacy protection and perceived security protec- tion. Further, this study also confu＇ms that the performance of the VC （group cohesion and vitality） is significantly affected by users＇ trust in the VC. The results of this study can provide theoretical guidance for internet companies to maintain and enhance the value of VCs.
基金Supported by National Natural Science Foundation of China(Grant No.11901197)Young Teacher Foundation of Henan Province(Grant No.2021GGJS080).
文摘In this article,the virtual element method of the Allen-Cahn equation on a polygon grid is discussed in the fully discrete formulation.With the help of the energy projection operator,we give the corresponding error estimates in the L2 norm and H1 norm.
文摘The scope of digital journalism is expanding rapidly due to the development of internet tools and digital technologies.In particular,in the future of digital journalism development,one of the main areas of research coming into theory and practice is the term and concept of"metaverse",which is considered a new branch of digital journalism.We have written this article based on theoretical research on new media concepts,computer technology,and augmented reality with a new perspective on the"future of digital journalism".The wide range of possibilities for accessing metaverse virtual reality environments and technology has reached a level even higher than that for immersive journalism,and some researchers and media organizations have confirmed that this is the new future of digital journalism.
