Previous molecular analyses of human astrocytomas have identified many genetic changes associated with astrocy-toma formation and progression.In an effort to identify novel gene expression changes associated with astr...Previous molecular analyses of human astrocytomas have identified many genetic changes associated with astrocy-toma formation and progression.In an effort to identify novel gene expression changes associated with astrocytomaformation,which might reveal new potential targets for glioma therapeutic drug design,we used the B8-RAS-transgenic mouse astrocytoma model.Using multiplex gene expression profiling,we found that展开更多
China’s foreign trade from January to August According to Customs figures,China’s total import and export in August reached 2.04 trillion yuan,down 9.7%year on year(the same below).Export was 1.2 trillion yuan,down ...China’s foreign trade from January to August According to Customs figures,China’s total import and export in August reached 2.04 trillion yuan,down 9.7%year on year(the same below).Export was 1.2 trillion yuan,down 6.1%,and import 0.84 trillion yuan,down 14.3%.Trade surplus was 368 billion yuan,an increase of 20.1%.In terms of the U.S.dollar,the total import and export in August reached US$333.5 billion,展开更多
It is proved that a system under compact perturbation cannot be uniformly exponentially stable for an isometric C0-semigroup or a C0-group with polynomial growth for negative time in a Banach space. The results extend...It is proved that a system under compact perturbation cannot be uniformly exponentially stable for an isometric C0-semigroup or a C0-group with polynomial growth for negative time in a Banach space. The results extend and improve the corresponding results of previous literature.展开更多
The population of China has entered an era of low fertility and aging,with a slower growth rate in the last decade.This commentary briefly reviews demographic changes in China in the last seven decades with some impor...The population of China has entered an era of low fertility and aging,with a slower growth rate in the last decade.This commentary briefly reviews demographic changes in China in the last seven decades with some important years of change in mortality,fertility and urbanization,and discusses future trends according to the information provided by the 2020 Census.China has experienced“compressed”population change,and population aging will continue to advance,meanwhile the size of the population is expected to reach its peak in the near future.To prepare proper response to the challenges proactively,institutional change which adapts to population changes is necessary.展开更多
文摘Previous molecular analyses of human astrocytomas have identified many genetic changes associated with astrocy-toma formation and progression.In an effort to identify novel gene expression changes associated with astrocytomaformation,which might reveal new potential targets for glioma therapeutic drug design,we used the B8-RAS-transgenic mouse astrocytoma model.Using multiplex gene expression profiling,we found that
文摘China’s foreign trade from January to August According to Customs figures,China’s total import and export in August reached 2.04 trillion yuan,down 9.7%year on year(the same below).Export was 1.2 trillion yuan,down 6.1%,and import 0.84 trillion yuan,down 14.3%.Trade surplus was 368 billion yuan,an increase of 20.1%.In terms of the U.S.dollar,the total import and export in August reached US$333.5 billion,
基金Project of Sichuan Provincial Science and Technology Department (No.2007J13-006)
文摘It is proved that a system under compact perturbation cannot be uniformly exponentially stable for an isometric C0-semigroup or a C0-group with polynomial growth for negative time in a Banach space. The results extend and improve the corresponding results of previous literature.
文摘The population of China has entered an era of low fertility and aging,with a slower growth rate in the last decade.This commentary briefly reviews demographic changes in China in the last seven decades with some important years of change in mortality,fertility and urbanization,and discusses future trends according to the information provided by the 2020 Census.China has experienced“compressed”population change,and population aging will continue to advance,meanwhile the size of the population is expected to reach its peak in the near future.To prepare proper response to the challenges proactively,institutional change which adapts to population changes is necessary.
