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引导学生习得多样化的数学学习方式 被引量:1
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作者 于艳秋 《佳木斯教育学院学报》 2003年第4期48-49,共2页
倡导学生主动参与,探究发现,交流合作的学习方式。注重学生的经验与学习兴趣,改变课程实施过程中过分依赖教材,过于强调接受式学习,死记硬背,机械训练的现状。
关键词 数学 学习方式 习得多样化 中学
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嫁接农业谚语与大学英语习得农业专业化转向研究
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作者 张宜民 胡作友 《安徽农业科学》 CAS 2014年第36期13143-13146,13148,共5页
针对大学英语专业化需求趋势,分析研究农业谚语的优良特性,衔接农业知识和大学英语习得的突破口,旨在农业类院校大学生提升英语学习能力、培养创新型、复合型及实用技能型农业人才。
关键词 客观形势变化 农业谚语 大学英语习得 农业专业化转向 习得模式多样化
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Coronarenes: recent advances and perspectives on macrocyclic and supramolecular chemistry 被引量:2
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作者 Mei-Xiang Wang 《Science China Chemistry》 SCIE EI CAS CSCD 2018年第8期993-1003,共11页
Synthetic macrocyclic host molecules always play an essential role in the establishment and development of supramolecular chemistry. Along with the continuous interests in the study of classical macrocycles, recent de... Synthetic macrocyclic host molecules always play an essential role in the establishment and development of supramolecular chemistry. Along with the continuous interests in the study of classical macrocycles, recent decades have witnessed the emergence and rapid development of the chemistry and supramolecular chemistry of novel and functional macrocycles. Owing to their easy availability, a self-tunable V-shaped cavity resulted from 1,3-alternate conformation, and diversified electronic features steered by the interplay between heteroatom linkages and aromatic rings, heteracalixaromatics act as a type of versatile and powerful macrocyclic hosts in molecular recognition and fabrication of supramolecular systems. Very recently, by means of engineering the bond connectivity or the recombination of chemical bonds within heteracalixaromatics, we have devised coronarenes, a new generation of macrocycles. In this concise review, macrocyclic and supramolecular chemistry of coronarenes are summarized in the order of their syntheses, structural features, molecular recognition and self-assembly properties. In the last part of this article, personal perspectives on the study of macrocyclic and supramolecular chemistry will also be discussed. 展开更多
关键词 coronarenes heteracalixaromatics macrocycles molecular recognition non-covalent bond INTERACTIONS
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