In the era of intelligent media,the interaction between teachers and students in higher education is undergoing a profound transformation.The model has shifted from one-way transmission to multi-agent,two-way collabor...In the era of intelligent media,the interaction between teachers and students in higher education is undergoing a profound transformation.The model has shifted from one-way transmission to multi-agent,two-way collaboration involving“teacher-student-AI(artificial intelligence)”.Interaction depth moves from surface Q&A to deep thought engagement,supported by instant,precise feedback and a blended virtual-physical space.New forms such as data-driven personalized interaction and immersive collaborative learning have emerged.However,this evolution brings significant challenges:over-reliance on technology may weaken cognitive autonomy;virtual interaction risks emotional detachment and trust erosion;ethical concerns like algorithmic bias and data privacy arise;teachers’roles become blurred;and evaluation systems lag behind technological advances.Future pathways should position AI as a supportive tool while upholding human centrality.Strengthening emotional connection through online-offline blending,reforming assessment to value process and growth,and empowering teachers as digitally literate“learning guides”and“emotional connectors”are key to building a healthy,sustainable interactive ecosystem.展开更多
Summit diplomacy is an important practical form of major-country diplomacy with Chinese characteristics in the new era and is becoming an increasingly important platform through which China can enhance its internation...Summit diplomacy is an important practical form of major-country diplomacy with Chinese characteristics in the new era and is becoming an increasingly important platform through which China can enhance its international discourse power and practice genuine multilateralism.In this new era,China's summit diplomacy is committed to the Chinese concept of building a community with a shared future for humanity,promoting the in-depth and solid implementation of Chinese solutions,and focusing on the Global Development Initiative,the Global Security Initiative,the Global Civilization Initiative,and the Global Governance Initiative.It is also committed to fostering political mutual trust among major countries and safeguarding peace and stability in the international system.Guided by Xi Jinping Thought on Diplomacy,China has participated in and initiated multilateral summit mechanisms,strengthened cross-regional cooperation,and promoted the representation and discourse power of developing countries in global governance.This has led to important contributions being made to the development of a more inclusive and equitable multilateral framework for international cooperation.At present,China's summit diplomacy is facing new opportunities and challenges.More rational and systematic strategic trade-offs and arrangements are needed between institutional expansion and operational efficiency,consensus achievement and outcome implementation,and diplomatic practice and national development goals.展开更多
Air temperature is an important indicator to analyze climate change in mountainous areas.ERA5 reanalysis air temperature data are important products that were widely used to analyze temperature change in mountainous a...Air temperature is an important indicator to analyze climate change in mountainous areas.ERA5 reanalysis air temperature data are important products that were widely used to analyze temperature change in mountainous areas.However,the reliability of ERA5 reanalysis air temperature over the Qilian Mountains(QLM)is unclear.In this study,we evaluated the reliability of ERA5 monthly averaged reanalysis 2 m air temperature data using the observations at 17 meteorological stations in the QLM from 1979 to 2017.The results showed that:ERA5 reanalysis monthly averaged air temperature data have a good applicability in the QLM in general(R2=0.99).ERA5 reanalysis temperature data overestimated the observed temperature in the QLM in general.Root mean square error(RMSE)increases with the increasing of elevation range,showing that the reliability of ERA5 reanalysis temperature data is worse in higher elevation than that in lower altitude.ERA5 reanalysis temperature can capture observational warming rates well.All the smallest warming rates of observational temperature and ERA5 reanalysis temperature are found in winter,with the warming rates of 0.393°C/10a and 0.360°C/10a,respectively.This study will provide a reference for the application of ERA5 reanalysis monthly averaged air temperature data at different elevation ranges in the Qilian Mountains.展开更多
文摘In the era of intelligent media,the interaction between teachers and students in higher education is undergoing a profound transformation.The model has shifted from one-way transmission to multi-agent,two-way collaboration involving“teacher-student-AI(artificial intelligence)”.Interaction depth moves from surface Q&A to deep thought engagement,supported by instant,precise feedback and a blended virtual-physical space.New forms such as data-driven personalized interaction and immersive collaborative learning have emerged.However,this evolution brings significant challenges:over-reliance on technology may weaken cognitive autonomy;virtual interaction risks emotional detachment and trust erosion;ethical concerns like algorithmic bias and data privacy arise;teachers’roles become blurred;and evaluation systems lag behind technological advances.Future pathways should position AI as a supportive tool while upholding human centrality.Strengthening emotional connection through online-offline blending,reforming assessment to value process and growth,and empowering teachers as digitally literate“learning guides”and“emotional connectors”are key to building a healthy,sustainable interactive ecosystem.
文摘Summit diplomacy is an important practical form of major-country diplomacy with Chinese characteristics in the new era and is becoming an increasingly important platform through which China can enhance its international discourse power and practice genuine multilateralism.In this new era,China's summit diplomacy is committed to the Chinese concept of building a community with a shared future for humanity,promoting the in-depth and solid implementation of Chinese solutions,and focusing on the Global Development Initiative,the Global Security Initiative,the Global Civilization Initiative,and the Global Governance Initiative.It is also committed to fostering political mutual trust among major countries and safeguarding peace and stability in the international system.Guided by Xi Jinping Thought on Diplomacy,China has participated in and initiated multilateral summit mechanisms,strengthened cross-regional cooperation,and promoted the representation and discourse power of developing countries in global governance.This has led to important contributions being made to the development of a more inclusive and equitable multilateral framework for international cooperation.At present,China's summit diplomacy is facing new opportunities and challenges.More rational and systematic strategic trade-offs and arrangements are needed between institutional expansion and operational efficiency,consensus achievement and outcome implementation,and diplomatic practice and national development goals.
基金financially supported by the National Natural Science Foundation of China(No.41621001)。
文摘Air temperature is an important indicator to analyze climate change in mountainous areas.ERA5 reanalysis air temperature data are important products that were widely used to analyze temperature change in mountainous areas.However,the reliability of ERA5 reanalysis air temperature over the Qilian Mountains(QLM)is unclear.In this study,we evaluated the reliability of ERA5 monthly averaged reanalysis 2 m air temperature data using the observations at 17 meteorological stations in the QLM from 1979 to 2017.The results showed that:ERA5 reanalysis monthly averaged air temperature data have a good applicability in the QLM in general(R2=0.99).ERA5 reanalysis temperature data overestimated the observed temperature in the QLM in general.Root mean square error(RMSE)increases with the increasing of elevation range,showing that the reliability of ERA5 reanalysis temperature data is worse in higher elevation than that in lower altitude.ERA5 reanalysis temperature can capture observational warming rates well.All the smallest warming rates of observational temperature and ERA5 reanalysis temperature are found in winter,with the warming rates of 0.393°C/10a and 0.360°C/10a,respectively.This study will provide a reference for the application of ERA5 reanalysis monthly averaged air temperature data at different elevation ranges in the Qilian Mountains.
