Social network database system is a computer professional basic course.It is widely opened in engineering universities.However,teaching student to understand esoteric network database theory and master practical techn...Social network database system is a computer professional basic course.It is widely opened in engineering universities.However,teaching student to understand esoteric network database theory and master practical technology are a difficult problem.In this paper,we combine the prevalent at home and abroad flipped classroom teaching philosophy,and designed a model for teaching computer science students to learn social network database system.The model uses a new generation of information technology as a platform,and takings into account the flip classroom theory.This model fully embodies the“teacher assisted,student independent learning“teaching thinking,and effectively stimulates student interest in learning.The practical results show that the teaching model can enhance student achievement and the ability to solve practical problems.展开更多
Pleiotropic drug resistance （PDR） transporters belonging to the ABCG subfamily of ATP-binding cassette （ABC） transporters are identified only in fungi and plants. Members of this family are expressed in plants in ...Pleiotropic drug resistance （PDR） transporters belonging to the ABCG subfamily of ATP-binding cassette （ABC） transporters are identified only in fungi and plants. Members of this family are expressed in plants in response to various biotic and abiotic stresses and transport a diverse array of moleculesacross membranes, Although their detailed transport mechanism is largely unknown, they play important roles in detoxification processes, preventing water loss, transport of phytohormones, and secondary metabolites. This review provides insights into transport mechanisms of plant PDR transporters, their expression profiles, and multitude functions in plants.展开更多
文摘Social network database system is a computer professional basic course.It is widely opened in engineering universities.However,teaching student to understand esoteric network database theory and master practical technology are a difficult problem.In this paper,we combine the prevalent at home and abroad flipped classroom teaching philosophy,and designed a model for teaching computer science students to learn social network database system.The model uses a new generation of information technology as a platform,and takings into account the flip classroom theory.This model fully embodies the“teacher assisted,student independent learning“teaching thinking,and effectively stimulates student interest in learning.The practical results show that the teaching model can enhance student achievement and the ability to solve practical problems.
基金supported by the National Natural Science Foundation of China (30470189, 81071821, 81101655)the Fundamental Research for the Central University of China (721500011)the key Project of Hunan Provincial Natural Science Foundation of China (13JJ2016)
文摘Pleiotropic drug resistance （PDR） transporters belonging to the ABCG subfamily of ATP-binding cassette （ABC） transporters are identified only in fungi and plants. Members of this family are expressed in plants in response to various biotic and abiotic stresses and transport a diverse array of moleculesacross membranes, Although their detailed transport mechanism is largely unknown, they play important roles in detoxification processes, preventing water loss, transport of phytohormones, and secondary metabolites. This review provides insights into transport mechanisms of plant PDR transporters, their expression profiles, and multitude functions in plants.
