卓越教师特征画像研究:质性分析的视角

“靠谁培养人?”——这是新时代教育的根本问题,更是灵魂之问。文章从我国有关“卓越教师”的国策背景出发,在理解卓越教师和特征画像内涵的基础上,运用NVivo质性分析方法对80篇国内外有关卓越教师特征研究的文献进行编码,聚合和分析了卓越教师特征画像六大维度及其内涵,即能力结构、品质特征、人际关系、知识体系、情意素养、自觉水平,并结合智能时代背景对卓越教师进行角色定位,认为卓越教师是“促变教学”的创变型教师、“独具个性”的人格型教师、“致中和”的关系型教师、“知识圆融”的专家型教师、“大先生式”的教育家型教师、“自助式”的终身学习型教师,智能技术赋能的智慧教师是智能时代卓越教师发展的必然走向。本研究旨在为卓越教师的胜任力及其养成提供一种认知和行为素描与参考,以促进教师终身学习和专业自主发展。

Ordered quasi-two-dimensional structure of nanoparticles in semiflexible ring polymer brushes under compression

Molecular dynamics simulations of a coarse-grained bead-spring model of ring polymer brushes un- der compression are presented. Flexible polymer brushes are always disordered during compression, whereas semiflexible polymer brushes tend to be ordered under sufficiently strong compression. Fur- ther, the polymer monomer density of the semiflexible polymer brush is very high near the brush surface, inducing a peak value of the free energy near the surface. Therefore~ when nanoparticles are compressed in semifiexible ring polymer brushes, they tend to exhibit a closely packed single-layer structure between the brush surface and the impenetrable wall, and a quasi-two-dimensional ordered structure near the brush surface is formed under strong compression. These findings provide a new approach to designing responsive applications.