伍德沃德-霍夫曼规则来源之争

简要介绍了美国化学家E．J．科里(E．J．Comy，1928-)对伍德沃德-霍夫曼规则(Woodward-Hoffmann rules)来源优先权之争的来龙去脉以及R．霍夫曼(Roald Hoffmann，1937-)对昔日往事的回顾，有助于理解伍德沃德-霍夫曼规则来源之争。     

中美贸易摩擦、全球价值链分工与福利效应

基于全球价值链分工,本文利用2018年中美贸易摩擦加征关税清单、世界投入产出数据库(WIOD)和中美家庭消费支出调查等数据,使用Taylor一阶展开法和考虑消费异质性的Creedy方法测算了中美贸易摩擦给全球价值链参与者带来的福利效应。研究发现:第一,无论基于Taylor一阶展开法还是Creedy方法,本轮贸易摩擦给中美两国自身带来的福利损失最大,且美国受损程度明显高于中国;第二,全球价值链上加拿大、墨西哥等北美自由贸易区(NAFTA)成员以及日本、德国、英国等经济体受中美贸易摩擦影响的福利损失较大;第三,国别责任分解表明中美福利损失主要来源于自身加税行为,而其他绝大多数经济体的损失主要由美国加税引致;第四,收入分配方面,中美贸易摩擦引致的中国福利损失是累退性的,而美国福利受损程度与收入呈现非线性的“倒U型”关系,表明中美贸易摩擦不利于收入分配格局的改善。全球价值链各参与者应秉持人类命运共同体理念,积极主动维护多边贸易规则和国际治理秩序。     

始料不及的新变化

到辽宁之前,有朋友提醒说:东北人善饮而好劝酒, 要留神。甫抵沈阳,主人便设宴款待。席间免不了敬酒,辽宁人好客而不显过火,豪爽而不失儒雅,酒宴节奏把握得体,展开井然有序,给人留下美好印象。之后,去鞍山、去营口、去大连,所到之处,全无外界盛传的“劝酒成风”一说。显然,面对振兴东北的新一     

DISTRIBUTION-FREE CONFIDENCE PROCEDURE FOR UMBRELLA ORDERINGS

Responses in a one-factor experiment with A; ordered treatments follow an umbrella, ordering if they consist of two piecewise monotone segments, i.e. increasing and then decreasing, or the converse. This paper proposes a non-parametric distribution-free confidence procedure for umbrella orderings, the aim being to identify the treatments that correspond to the optimal effects. It uses a method that joins the seemingly unrelated theories of U-statistics and isotonic regression. A random confidence subset of the ordered treatments is constructed, such that it contains all the unknown peaks (optimal treatments) of an umbrella ordering with any prespecified confidence level. The paper demonstrates that the proposed confidence procedure is nonparametric distribution-free and, further, that the proposed procedure naturally implies a test for umbrella alternatives. Since the proposed confidence procedure is always more informative than tests for umbrella alternatives, it should be used in their place in practice. An example illustrates the proposed procedure.     

论欧洲一体化的复兴与90年代日本新欧洲政策

20世纪90年代日本面对欧洲局势的变化,积极构筑、实施新欧洲政策,日欧关系发生了重大变化,双边合作的视角也由过去偏重于双方市场开放等经济问题,逐步转为全球范围内的政治、经济、安全保障等问题的对话与合作。日本对欧洲一体化的政策日益成熟。     

Interdisciplinary research at the Urban–Rural interface: The West ga project

As human populations increase, ecological and social issues become inextricably linked to a greater degree. Solutions to complex social–ecological problems can only be derived through the use of integrated research that can account for the interplay of many factors across traditional discipline lines. We are using such an integrated research to clarify relationships among socioeconomic drivers, ecological effects, and social and policy feedbacks associated with urban development of forested landscapes. Our approach is goal oriented and interdisciplinary in nature and involves a team composed of ecologists, anthropologists, and economists who exchange ideas and information across disciplinary lines. The team and approach has evolved through many of the barriers to interdisciplinary research that have been identified by other authors. Our goal is to develop a predictive capability in order to anticipate ecological and social implications of urban development on natural resources in the southeastern United States. Our integrated model and subsequent papers in this special issue are presented.     

语文教育传统的本体论哲学批评

中西哲学最重要的差别乃在于中国传统哲学没有产生西方哲学的概念形而上学观念,即中国哲学没有西方哲学所特有的"本体论"。中国哲学具有"受指主义"的精神气质,这对我国语文教育的传统乃至人的精神气质产生了深刻的影响。中国语文教育的哲学气质最根本的一点,就是缺乏奠基在语言的逻辑性之上的独立的理性精神。现代语文教育应呼唤健康的理性精神。     

高校实践教学基地建设探讨

探讨了高校实践教学基地建设的技术条件及其实施和运行管理的相关内容     

语言损耗研究的理论框架及途径

语言损耗研究在国外已经有三十多年的历史,在理论方面建立了许多相对完整的框架和独特的研究途径。早期语言损耗研究主要来源于心理学研究中的记忆和遗忘的观点,20世纪90年代以来,开始借助于认知语言学,最近几年,许多学者开始从社会语言学视角研究语言损耗。通过对语言损耗研究的退化假说、提取失败假说、储存范式假说、重新学习假说、中介语假说、普遍语法途径和社会语言学途径等几个重要理论模式所做的介绍,以及对我国现在的语言损耗研究所做的初步总结,我们认为,我国语言损耗研究应该吸收国外的研究成果,并据此开展这一领域的研究。