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A Practical and Efficient Procedure for Preparation of Diacetals from 2,2-Bis(hydroxymethyl) propane-1,3-diol with Aldehydes and Ketones Catalysed by Anhydrous Ferrous Sulfate 被引量:6
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《厦门大学学报(自然科学版)》 CAS CSCD 北大核心 1999年第S1期285-285,共1页
关键词 A Practical and Efficient procedure for Preparation of Diacetals from 2 2-Bis HYDROXYMETHYL propane-1 3-diol with Aldehydes and Ketones Catalysed by Anhydrous Ferrous Sulfate
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Quality Mathematics Instructional Practices Contributing to Student Achievements in Five High-Achieving Asian Education Systems:An Analysis Using TIMSS 2011 Data
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作者 Qiang CHENG 《Frontiers of Education in China》 2014年第4期493-518,共26页
Although teaching quality is seen as crucial in affecting students’performance,what types of instructional practices constitute quality teaching remains a question.With the theoretical assumptions of conceptual and p... Although teaching quality is seen as crucial in affecting students’performance,what types of instructional practices constitute quality teaching remains a question.With the theoretical assumptions of conceptual and procedural mathematics teaching as a guide,this study examined the types of quality mathematics instructional practices that affect students’mathematics learning across five high-performing Asian education systems using the Trends in International Mathematics and Science Study(TIMSS)2011 dataset.It found that no combinations of the components of conceptual and procedural mathematics teaching practices exist consistently across the five education systems.Results from the study provide important implications for practitioners and policy makers regarding how to improve mathematics teaching and learning in these Asian education systems as well as elsewhere. 展开更多
关键词 conceptual teaching practice procedural teaching practice mathematics performance international comparison
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CHOICE OF COURT AGREEMENT WITH FOREIGN ELEMENTS IN CHINA: SHANDONG JUFENG V. SOUTH KOREA MGAME
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作者 DU Huanfang 《Frontiers of Law in China-Selected Publications from Chinese Universities》 2018年第2期241-259,共19页
Unlike statutory and discretionary jurisdiction, jurisdiction by choice of court agreement concluded in foreign-related civil and commercial matters should be decided by the parties. As a special contract, the choice ... Unlike statutory and discretionary jurisdiction, jurisdiction by choice of court agreement concluded in foreign-related civil and commercial matters should be decided by the parties. As a special contract, the choice of court agreement is so independent that its validity is governed by the law chosen by the parties or by the law of the country where the chosen court is situated in case that the choice of law is invalid. Amendments to the Civil Procedure Law (hereinafter referred to as "CPL") of People's Republic of China (2012) should not only include the jurisdiction by choice of court agreement with foreign-related elements, but also stipulate it in a more standardized way, rather than simply refer to provision of jurisdiction by choice of court agreement in domestic cases. At the same time, the CPL should make the scope of application of choice of court agreement more clear, and provide choice of law clause and its confirmative elements when deciding its effectiveness. 展开更多
关键词 choice of court agreement choice of law clause the Civil procedure Law judicial practice
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