“非X不Y”句式的语义阐释

在语言经济原则的驱动下,汉语"非X不Y"结构已经从单纯的否定词"非"和"不"走向了凝固化的稳定结构,在语义层面上也体现了强调主观和客观的感情色彩。该结构满足了其语法化的要素。在进行语义解读的时候,X和Y值的变化起着关键的因素。     

CORRELATIONS AND CHARACTERIZATIONS OF THE UNIFORM DISTRIBUTION

Two characterizations of the uniform distribution on a suitable compact space are proved. These characterizations are applied to a number of particular examples of which the most interesting is the following: if X , Y and Z are independent n-vectors whose components are independent and identically distributed within a vector, then the pairwise independence of the product moment correlation coefficients between X , Y and Z implies that these vectors are normally distributed.     

GOODNESS OF FIT FOR THE BINOMIAL DISTRIBUTION

Goodness of fit testing for the binomial distribution can be carried out using Pearson's X²_p statistic and its components. Applications of this technique are considered and compared with recently suggested empirical distribution function tests. Diagnostic use of components is discussed.     

国外保险业效率研究概况及启示

基于效率研究对保险业经营者和监管者的应用重要性,本文对国外保险业效率研究的理论基础、主要方法、及其重要结论作了较详细的论述。并在此基础上概括出了如下启示:(1)效率研究不仅是理论界所关心的问题,更是监管当局与实务界引起高度重视的问题;(2)效率研究拓宽了对我国保险业研究的思路及方法。(3)效率研究作为一项综合性的考核指标,不但可以用于监管当局对各保险机构的评价,还可以为保险业管理者考核和完善内部管理水平提供评价依据。     

ON THE USE OF X2 AS A TEST OF INDEPENDENCE IN CONTINGENCY TABLES WITH SMALL CELL EXPECTATIONS

When an r×c contingency table has many cells having very small expectations, the usual χ² approximation to the upper tail of the Pearson χ² goodness-of-fit statistic becomes very conservative. The alternatives considered in this paper are to use either a lognormal approximation, or to scale the usual χ² approximation. The study involves thousands of tables with various sample sizes, and with tables whose sizes range from 2×2 through 2×10×10. Subject to certain restrictions the new scaled χ² approximations are recommended for use with tables having an average cell expectation as small as 0·5.     

大学英语2＋2＋X教学模式的初步探索与实践

本文在学习了教学模式的定义和内容的基础上,讨论了大学英语教学模式及2+2+X这一新教学模式的由来及其内容,并以一次教学实验探讨并验证了新教学模式实施的可能性,从而为大规模实施这一教学模式提供了一些经验。如:科学利用多媒体;以主题内容安排教学活动;提问式是课堂互动的主要形式;结合效果检查培训学习策略。这一教学实验的不足之处在于没有能够对网络在线的教学活动进行探讨,因此未能对新教学模式中的X部分提出意见和评价。     

基于X3D^TM的面向Agent异地同步信息系统的模型研究

提出了一种基于X3DTM的面向Agent异地同步协同工作(CorporativeWork,CW)信息系统的模型。该模型设计了分别具备不同功能的多个Agent。采用缩小的、轻量化的3D内核结合分布式文件存储和传输控制命令方法进行异地协同,在窄带环境下取得了很好的实时性。对MAS的设计、通信和协调机制进行了理论和应用上的研究与探讨,同时也提出了信息管理领域技术应用研究的新课题。     

“X二代”犯罪现象与青少年公民教育

一系列"官二代"、"富二代""红二代"和"星二代"犯罪案件的频发,引起了社会的高度关注。"X二代"犯罪暴露了目前对青少年公民教育的缺失。预防青少年犯罪应当从加强公民教育做起,增强青少年的公民意识,树立正确的权利意识,培养基本的法治意识,提升青少年的道德素养,增强青少年的责任意识,提升青少年的整体素质。公民教育是一项系统工程,需要依靠和发动全社会的力量,通过家庭、学校和社会的共同努力,推进公民教育,实现预防青少年犯罪的目的。     

Al -Zn -Mg -Cu 合金晶格应变场的研究

对热处理后Al-Zn-Mg-Cu合金的晶格应变场的定量测量,可以较准确地揭示铝合金的强化机理。本文分别使用X射线衍射与会聚束电子衍射技术对在120℃时效处理14小时的Al-Zn-Mg-Cu合金产生的晶格应变进行测量计算。研究结果表明：通过X射线衍射与会聚束电子衍射测量 Al -Zn -Mg -Cu 合金的有效应力分别为105．44MPa 和110MPa,且会聚束电子衍射可以弥补X射线只能测量平均宏观应变的缺点,实现了铝合金微区晶格应变场的实际测量。这两种方法配合使用,为进一步揭示Al-Zn-Mg-Cu合金的强化机制奠定了基础。     

The validity of the occupational stress indicator

During the last two decades two potent groups of predictors for work-related musculoskeletal problems have been identified: physical work load and poor psychosocial working conditions. However, little is known about their combined effects. In this study the buffering effect of control at work with respect to the negative effects of psychological demands and physical work load on musculoskeletal problems is examined. All study variables were sampled from 431 people working in geriatric nursing homes in Germany by means of questionnaires. Main effects and interactions were tested with multiple regression analysis. The results showed that control buffered the effects of high psychological demands, but not of high physical work load; the buffering effect of control was observed only when physical work load was low. The combined effects of demands and physical work load were over-additive. Thus, the power of different predictors for musculoskeletal symptoms depended on the level of other predictors. This suggests that the efficiency of certain strategies for the prevention of musculoskeletal problems is likely to depend on the level of risk factors, with different strategies being appropriate for different levels of risk.