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关键词： Additive categories   Compact object   Ulam-measurable cardinal  

摘要： We relativize the notion of a compact object in an abelian category with respect to a fixed subclass of objects. We show that the standard closure properties persist to hold in this case. Furthermore, we describe categorical and set-theoretical conditions under which all products of compact objects remain compact. (C) 2019 Elsevier Inc. All rights reserved.

关键词： Triangulated category   Twin cotorsion pair   Heart   Quasi-abelian category   Localisation   Cluster category  

摘要： We prove that, under a mild assumption, the heart (H) over bar of a twin cotorsion pair ((S, T), (U, V)) on a triangulated category C is a quasi-abelian category. If C is also Krull-Schmidt and T = U, we show that the heart of the cotorsion pair (S, T) is equivalent to the Gabriel-Zisman localisation of (H) over bar at the class of its regular morphisms. In particular, suppose C is a cluster category with a rigid object R and [X-R] the ideal of morphisms factoring through X-R = Ker(Hom(c)(R, -)), then applications of our results show that C/[X-R] is a quasi-abelian category. We also obtain a new proof of an equivalence between the localisation of this category at its class of regular morphisms and a certain subfactor category of C. (C) 2019 Elsevier Inc. All rights reserved.

关键词： Diffeomorphism groups   Cobordism categories   Parametrized surgery   Odd-dimensional manifolds  

摘要： We prove that the stable moduli space of (n - 1)-connected, n-parallelizable, (2n + 1)-dimensional manifolds is homology equivalent to an infinite loopspace for n >= 4, n not equal 7. The main novel ingredient is a version of the cobordism category incorporating surgery data in the form of Lagrangian subspaces. (C) 2019 Published by Elsevier Inc.

关键词： Collapsing categories   measurement invariance   model fit   multiple-groups models   ordinal variables  

摘要： Cross-cultural comparisons of latent variable means demands equivalent loadings and intercepts or thresholds. Although equivalence generally emphasizes items as originally designed, researchers sometimes modify response options in categorical items. For example, substantive research interests drive decisions to reduce the number of item categories. Further, categorical multiple-group confirmatory factor analysis (MG-CFA) methods generally require that the number of indicator categories is equal across groups;however, categories with few observations in at least one group can cause challenges. In the current paper, we examine the impact of collapsing ordinal response categories in MG-CFA. An empirical analysis and a complementary simulation study suggested meaningful impacts on model fit due to collapsing categories. We also found reduced scale reliability, measured as a function of Fisher's information. Our findings further illustrated artifactual fit improvement, pointing to the possibility of data dredging for improved model-data consistency in challenging invariance contexts with large numbers of groups.

关键词： 范畴化理论   大学英语   词汇教学  

摘要： 大学英语词汇教学是英语教学中的一个重点,也是一个难点,一些学生对词汇理解不够深刻,不能全面掌握词汇意义,特别是对词汇在不同语境中的即时意义,即语用意义,词语的引申及象征,比喻义等都不能正确理解,导致在阅读、写作中出现错答、错用。本文在范畴化理论框架下探讨教师在词汇教学中运用此理论如何有效解除学生词汇学习中的理解障碍,达到很好的二语习得效果。

关键词： 高频词   “情”   语境参数   范畴化   非范畴化   翻译  

摘要： 通过对《红楼梦》回目中“情”字的范畴转移机制的探讨,我们发现结合言内和言外各种显性和隐性参数,“情”字除了作名词,可译成多种基本层次范畴,还可以进行语义迁移、扩大,译成域内范畴概念,此外,“情”字在经过非范畴化之后,可以作为形容词和副词,译为跨域范畴概念,在这个过程中,语境参数理论为古典小说高频词语义嬗变问题提供了一套可印证、可描述、可阐释的理论和方法,一方面语境参数理论中的各种显性和隐性参数能够突破“上下文”、“情景”等传统语境理论的泛化局限性,有利于译者在目标语中对嬗变性较强的高频词进行正确择义;另一方面,语境参数论与原型范畴的相关理论相结合可以借助后者的相关理论成果进一步丰富和印证语境参数论在翻译中的效益。

关键词： 领属结构   汉语方言   范畴研究   社会关系   关中方言   临猗方言   光山方言   人称代词  

摘要： 作为《汉语方言范畴研究丛书》的第二本,由陶寰和盛益民主编的《汉语方言领属范畴研究》于2019年6月由中西书局出版。本书收入论文22篇,如下:刘丹青《汉语方言领属结构的语法库藏类型》,白鸽《冀州方言的领属范畴》,唐正大《认同与拥有——陕西关中方言的亲属领属及社会关系领属的格式语义》,史秀菊《山西临猗方言的定语领属》,王芳《光山方言的领属结构》,陈卓《安徽芜湖话的定语领属范畴》,张亚军《海安方言中人称代词充当定语的领属结构》,汪化云《团风方言三身代词构成的领属结构》,陈振宇《成都方言中的领属结构》.

关键词： 经济   宏观经济   高铁   高铁经济   高铁经济学  

摘要： 从宏观经济学视角,对高铁经济学涵盖的高铁政治经济、高铁国民经济、高铁社会经济、高铁生态经济和高铁地理经济等5个研究范畴各自的构成要因以及高铁与其之间的内在关系及影响机理进行系统分析,旨在从宏观维度对高铁经济学进行原创性、系统性、引领性研究。

关键词： 原型范畴   鬼   认知机制   立象以尽意  

摘要： 鬼之真身到底为何?古往今来众说纷纭。本文从认知语言学原型范畴理论入手,对汉语文字材料进行严谨推导后,证实汉字之“鬼”乃先民观物取象于祖考之骸骨,是“近取诸身,远取诸物”易学古老而重要之认知法则的实践产物,为中华民族“立象以尽意”汉字美学命题的哲理阐发。其发生学原理与演变史路径乃汉字“形、音、义”与“书(象)、言、意”的完美组合和黄金搭档,堪称中国先民认知世界、表述世界、规约世界、解译世界的一个经典例证,是我们重建传统朴学与民族文化认同的中国编码、认知经验与人文底座,对汉语词汇、人类思维与传统文化产生了深远影响。

关键词： 现象   主体性原则   经验性原则   现象的质料   现象的形式  

摘要： 在康德看来,感觉永远突破不了经验的限制,只有理性才能超越理性。因此他认为,现象既是“主体的”现象,也是“经验的”对象。现象就是认识对象,由“现象的质料”和“现象的形式”这两大要素构成。“现象”范畴是康德哲学区别于以往任何哲学的显著标志,也是康德哲学大厦的奠基石,更是打开康德哲学大门之秘钥。