As an Chinese saying goes that"Nothing can be accomplished without norms or standards". Thus People always follow Cooperative Principle to produce successful conversations in daily life and the EFL teaching ...As an Chinese saying goes that"Nothing can be accomplished without norms or standards". Thus People always follow Cooperative Principle to produce successful conversations in daily life and the EFL teaching is of no exception. Teachers and students cooperate with each other in classroom while they sometimes flout the principle deliberately. Therefore, it is necessary to conduct research on interactions in classroom, especially question & answer behaviors to see how teachers and students observe the Cooperative Principle and analyze underlying causes of their intentional flouting.展开更多
Escherichia coli RecA has been considered traditionally a cellular protein with multiple vital functions working to ensure the maintenance of integrity of genome in each individual bacterial cell as well as promoting ...Escherichia coli RecA has been considered traditionally a cellular protein with multiple vital functions working to ensure the maintenance of integrity of genome in each individual bacterial cell as well as promoting swarming migration in collectivity. On the contrary, recently it has been described that RecA promotes cellular apoptotic-like death (ALD), a pathway of programmed cellular death (PCD). In fact, RecA has been dubbed as the major apoptotic executor in E. coli. From these studies, RecA emerges as a prototypical Gin/Gan protein that despite of their intrinsic vital and lethal anfi-funcionality becomes in a WISE factor: a Worker to Integrate Survival and Evolution in E. coli evolving populations living in community. Here, I provide a review of recent experimental and conceptual advances trying to understand these RecA’s antagonistic roles in appearance contradictory under a unified biological vision.展开更多
First-mover advantage and solid foundation of oil and gas cooperation is very important to the Belt and Road Initiative.Deeply studied opportunities and challenges of oil and gas cooperation have far-reaching signific...First-mover advantage and solid foundation of oil and gas cooperation is very important to the Belt and Road Initiative.Deeply studied opportunities and challenges of oil and gas cooperation have far-reaching significance to the cooperation in other industries in the Belt and Road.In this article,based on the systematic analysis of the oil and gas supply security,investment environment,regional win-win situation in oil and gas cooperation,new opportunities and challenges about upstream,pipeline,refining,trade,warehousing,engineering technology and equipment are studied.Enhancing capacities in four areas and implementing the 16 measures are given for deepening oil and gas cooperation in the future.Meanwhile,this article also gives suggestions and cooperation directions for countries and companies.展开更多
文摘As an Chinese saying goes that"Nothing can be accomplished without norms or standards". Thus People always follow Cooperative Principle to produce successful conversations in daily life and the EFL teaching is of no exception. Teachers and students cooperate with each other in classroom while they sometimes flout the principle deliberately. Therefore, it is necessary to conduct research on interactions in classroom, especially question & answer behaviors to see how teachers and students observe the Cooperative Principle and analyze underlying causes of their intentional flouting.
文摘Escherichia coli RecA has been considered traditionally a cellular protein with multiple vital functions working to ensure the maintenance of integrity of genome in each individual bacterial cell as well as promoting swarming migration in collectivity. On the contrary, recently it has been described that RecA promotes cellular apoptotic-like death (ALD), a pathway of programmed cellular death (PCD). In fact, RecA has been dubbed as the major apoptotic executor in E. coli. From these studies, RecA emerges as a prototypical Gin/Gan protein that despite of their intrinsic vital and lethal anfi-funcionality becomes in a WISE factor: a Worker to Integrate Survival and Evolution in E. coli evolving populations living in community. Here, I provide a review of recent experimental and conceptual advances trying to understand these RecA’s antagonistic roles in appearance contradictory under a unified biological vision.
文摘First-mover advantage and solid foundation of oil and gas cooperation is very important to the Belt and Road Initiative.Deeply studied opportunities and challenges of oil and gas cooperation have far-reaching significance to the cooperation in other industries in the Belt and Road.In this article,based on the systematic analysis of the oil and gas supply security,investment environment,regional win-win situation in oil and gas cooperation,new opportunities and challenges about upstream,pipeline,refining,trade,warehousing,engineering technology and equipment are studied.Enhancing capacities in four areas and implementing the 16 measures are given for deepening oil and gas cooperation in the future.Meanwhile,this article also gives suggestions and cooperation directions for countries and companies.
