共查询到20条相似文献,搜索用时 62 毫秒
1.
2.
3.
4.
在创新应用型人才培养目标的驱动下,结合仪器分析课堂教学的现状分析,把握教学重点,以BOPPPS教学模式为途径进行课堂设计,将课堂导入、学习目标、前测、参与式学习、后测、总结等6个部分深入课堂教学中,进而带动仪器分析课程教学的改革,重点关注学生的主动参与性与及时的效果反馈,让学生明白在未来将如何运用课堂内学到的内容,达到提高学生的应用技能的目的。 相似文献
5.
6.
从化工分离工程课程教学实际出发,以课程思政和工程教育认证理念为指导,本文提出了基于BOPPPS的“三融三变”混合式教学模式。通过线上与线下教学相融合,有利于充分发挥“雨课堂”等线上网络教学资源的优势,有效构建了更科学的全过程学习评价体系。在该模式下,思政育人贯穿专业知识教学全过程,切实践行“立德树人”根本任务。积极适应新工科发展要求,调动线下实践教学资源,提升学生工程实践素养。初步的教学实践表明,该模式能够激发学生的学习兴趣和创新潜能,提高学生的高阶思维能力,教学效果获得了显著的改善。 相似文献
7.
8.
9.
10.
11.
12.
13.
《Acta Crystallographica. Section C, Structural Chemistry》1988,44(3):585-586
14.
根据教科书的属性和功能以及调查的统计数据,阐述了化学教科书是教师进行教学设计的主要依据。依据学科课程理论和建构主义课程理论,分析了人教版教科书的编制思想及编写实践,提出了“学科-建构式”的教科书编制方式。基于教科书的编制思想及教学实践,归纳出创造性教学设计的基本策略。理解教科书的编制思想有利于教师更好地使用教科书进行创造性教学设计。 相似文献
15.
为了提高丁苯酞的抗血小板凝集活性,以6-氨基丁苯酞为起始原料,经重氮化/还原、环化、水解、脱氯、醚化和磺酰化反应合成了20个新型的丁苯酞-哒嗪酮衍生物,其结构经1H-NMR、13C-NMR和HRMS确证。体外抗血小板凝集活性测试结果表明:化合物6a、6b和6k对二磷酸腺苷(ADP)诱导的血小板凝集的抑制活性(IC50 = 44.9-180.0 μmol/L)优于先导化合物丁苯酞(IC50 = 1252 μmol/L)和阳性对照阿司匹林(IC50 = 1140 μmol/L);同时化合物 6b(IC50 = 63.6 μmol/L)和6k(IC50 = 191.9 μmol/L)对花生四烯酸(AA)诱导的血小板凝集也表现出显著的抑制活性。本研究为丁苯酞-哒嗪酮骨架在治疗缺血性脑卒中方面的研究提供了理论参考。 相似文献
16.
17.
Dr. Gert Kiss Dr. Nihan Çelebi‐Ölçüm Dr. Rocco Moretti Prof. Dr. David Baker Prof. Dr. Dr. K. N. Houk 《Angewandte Chemie (International ed. in English)》2013,52(22):5700-5725
Recent developments in computational chemistry and biology have come together in the “inside‐out” approach to enzyme engineering. Proteins have been designed to catalyze reactions not previously accelerated in nature. Some of these proteins fold and act as catalysts, but the success rate is still low. The achievements and limitations of the current technology are highlighted and contrasted to other protein engineering techniques. On its own, computational “inside‐out” design can lead to the production of catalytically active and selective proteins, but their kinetic performances fall short of natural enzymes. When combined with directed evolution, molecular dynamics simulations, and crowd‐sourced structure‐prediction approaches, however, computational designs can be significantly improved in terms of binding, turnover, and thermal stability. 相似文献
18.
19.
R. C. Mehrotra 《Journal of Sol-Gel Science and Technology》1994,2(1-3):1-6
Successful synthesis of a variety of volatile and alcohol soluble heterometal alkoxides (with 2, 3, 4, or more different metals in the same monomeric molecule) with chelating ligands, e.g., {A1(OPri)4}–, {Zr2(OPri)9}–, and {Nb(OPri)6}– around a central metal atom, which may also be bound with simpler ligands also like (OR)–, (acac)–, (acetate)– has not only added a new dimension to the stable multi-metal coordination systems, but has opened up the possibilities of designing a molecular precursor corresponding to the targeted material. It has been shown that the final material obtained from these is more homogeneous than that obtained from the use of mixtures of component metal alkoxides.More recent synthesis of soluble bimetallic oxide-alkoxides like magnesium -oxotetraisopropoxyaluminate has provided an array of novel precursors which are easier to handle due to their lesser tendency of hydrolyzability by atmospheric moisture.Investigations on the mechanism of the reactivity of the above precursors with water as well as methanol (for comparison) and other protic reagents like -diketonates and carboxylic acids are being currently pursued in the research school of Mehrotra. 相似文献