Research on eco-efficiency measurement, spatiotemporal analysis and prosperity warning based on the three-stage chain network SBM and MS-DDFM

This paper studies the changes of ecological efficiency (eco-efficiency) boom in China.Firstly, based on the improvement of the three-stage slack-based model (SBM), a hybrid chain network model is used to clarify the internal development structure of eco-efficiency.Then, Taking eco-efficiency as the benchmark indicator, the boom warning indicators

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How Does Prior Knowledge Influence Learning Engagement? The Mediating Roles of Cognitive Load and Help-Seeking

Research on learning engagement and cognitive load theory have proceeded in parallel with little cross-over of ideas.The aim of this research was to test an integrative model that examines how prior knowledge influences learning engagement via cognitive load and help-seeking strategies.A sample of 356 students from two middle schools in the north o

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