The popular singer and songwriter Bruce Springsteen is a product of the working-class family, and his songs often creatively capture not only working-class life but also workers＇ alienation from their labor. In an un...The popular singer and songwriter Bruce Springsteen is a product of the working-class family, and his songs often creatively capture not only working-class life but also workers＇ alienation from their labor. In an unsystematic way, Springsteen＇s lyrics portray how modem workers are alienated from the products of their labor, the process of working, other workers, and ultimately, from themselves. Although Springsteen primarily has blue-collar, industrial workers in mind, his thoughts on the alienation of labor continue to have relevance for workers in the American consumer society and in the contemporary global economy as well.展开更多
In low-duty-cycle wireless sensor networks,designers have to cope with unreliable links and limited communication capacity.In this work,we propose COST,a coding scheme that leverages spatial-temporal diversity to achi...In low-duty-cycle wireless sensor networks,designers have to cope with unreliable links and limited communication capacity.In this work,we propose COST,a coding scheme that leverages spatial-temporal diversity to achieve higher energy efficiency and lower delay of packet transmissions.We particularly address long sleeping intervals in low-duty-cycle networks by exploiting multi-path diversity.Specifically,we propose to employ an erasure-coding scheme to improve reliability.With respect to energy efficiency and delivery timeliness,we formulate the problem in optimal allocation of coded blocks over multiple paths,which is then proved to be NP-hard.We further propose a near-optimal algorithm to solve the allocation problem.Through extensive simulations,we evaluate the impact of network parameters and demonstrate the effectiveness of our proposal.展开更多
To participate in social insurance is a major social responsibility of enterprises, even it is a mandatory social policy, companies still escaped pay society insurance. The serious consequences of this phenomenon beco...To participate in social insurance is a major social responsibility of enterprises, even it is a mandatory social policy, companies still escaped pay society insurance. The serious consequences of this phenomenon become increasingly prominent.it not only damaged the justice of labor market, but also violated the staffs interest. Various factors influence enterprise to participate in social insurance behavior .Human capital is the impact of insurance companies. This paper is mainly focusing on the theory analysis of different human capital participating behavior of enterprises. From the perspective of human capital, using the cost-benefit theory and rational choice theory in economics to explore participating behavior, enterprise employees of different human capital differences in attitude to attend social insurance. No matter enterprises with higher or lower human capital, enterprises and employees choose to participate in social insurance act consistently. But, it can improve participate of low human capital enterprise behavior when payment rate reduced. So, it is suggested that establishing a lower level of social insurance system is helpful to expand coverage, it can through e^tahllgh the sunnlementarv insurance system meet the needs of more people.展开更多
Characterized by their low prevalence, rare diseases are often chronically debilitating or life threatening. Despite their low prevalence, the aggregate number of individuals suffering from a rare disease is estimated...Characterized by their low prevalence, rare diseases are often chronically debilitating or life threatening. Despite their low prevalence, the aggregate number of individuals suffering from a rare disease is estimated to be nearly 400 million worldwide.Over the past decades, efforts from researchers, clinicians, and pharmaceutical industries have been focused on both the diagnosis and therapy of rare diseases. However, because of the lack of data and medical records for individual rare diseases and the high cost of orphan drug development, only limited progress has been achieved. In recent years, the rapid development of next-generation sequencing(NGS)-based technologies, as well as the popularity of precision medicine has facilitated a better understanding of rare diseases and their molecular etiology. As a result, molecular subclassification can be identified within each disease more clearly, significantly improving diagnostic accuracy. However, providing appropriate care for patients with rare diseases is still an enormous challenge. In this review, we provide a brief introduction to the challenges of rare disease research and make suggestions on where and how our efforts should be focused.展开更多
文摘The popular singer and songwriter Bruce Springsteen is a product of the working-class family, and his songs often creatively capture not only working-class life but also workers＇ alienation from their labor. In an unsystematic way, Springsteen＇s lyrics portray how modem workers are alienated from the products of their labor, the process of working, other workers, and ultimately, from themselves. Although Springsteen primarily has blue-collar, industrial workers in mind, his thoughts on the alienation of labor continue to have relevance for workers in the American consumer society and in the contemporary global economy as well.
基金This work was supported in part by the National Basic Research Program of China(Grant No.2011CB302705)the National Natural Science Foundation of China(GrantNos.61003277,60903206)+1 种基金the State key DevelopmentProgram for Basic Research of China(No.2009CB3020402)the National Natural Science Foun-dation of Jiangsu Province(Grant No.BK2010102)
文摘In low-duty-cycle wireless sensor networks,designers have to cope with unreliable links and limited communication capacity.In this work,we propose COST,a coding scheme that leverages spatial-temporal diversity to achieve higher energy efficiency and lower delay of packet transmissions.We particularly address long sleeping intervals in low-duty-cycle networks by exploiting multi-path diversity.Specifically,we propose to employ an erasure-coding scheme to improve reliability.With respect to energy efficiency and delivery timeliness,we formulate the problem in optimal allocation of coded blocks over multiple paths,which is then proved to be NP-hard.We further propose a near-optimal algorithm to solve the allocation problem.Through extensive simulations,we evaluate the impact of network parameters and demonstrate the effectiveness of our proposal.
文摘To participate in social insurance is a major social responsibility of enterprises, even it is a mandatory social policy, companies still escaped pay society insurance. The serious consequences of this phenomenon become increasingly prominent.it not only damaged the justice of labor market, but also violated the staffs interest. Various factors influence enterprise to participate in social insurance behavior .Human capital is the impact of insurance companies. This paper is mainly focusing on the theory analysis of different human capital participating behavior of enterprises. From the perspective of human capital, using the cost-benefit theory and rational choice theory in economics to explore participating behavior, enterprise employees of different human capital differences in attitude to attend social insurance. No matter enterprises with higher or lower human capital, enterprises and employees choose to participate in social insurance act consistently. But, it can improve participate of low human capital enterprise behavior when payment rate reduced. So, it is suggested that establishing a lower level of social insurance system is helpful to expand coverage, it can through e^tahllgh the sunnlementarv insurance system meet the needs of more people.
基金supported by the National High Technology Research and Development Program of China (2015AA020108, 2015AA020104)the National Science Foundation of China (31671377)Shanghai 111 Project (B14019)
文摘Characterized by their low prevalence, rare diseases are often chronically debilitating or life threatening. Despite their low prevalence, the aggregate number of individuals suffering from a rare disease is estimated to be nearly 400 million worldwide.Over the past decades, efforts from researchers, clinicians, and pharmaceutical industries have been focused on both the diagnosis and therapy of rare diseases. However, because of the lack of data and medical records for individual rare diseases and the high cost of orphan drug development, only limited progress has been achieved. In recent years, the rapid development of next-generation sequencing(NGS)-based technologies, as well as the popularity of precision medicine has facilitated a better understanding of rare diseases and their molecular etiology. As a result, molecular subclassification can be identified within each disease more clearly, significantly improving diagnostic accuracy. However, providing appropriate care for patients with rare diseases is still an enormous challenge. In this review, we provide a brief introduction to the challenges of rare disease research and make suggestions on where and how our efforts should be focused.
