论现代教学评价的功能与特点

探讨和分析现代教学评价的8大功能及其5大特点,为现代教学评价提供更为科学的和全面的理论基础和依据,从而使教学评价更具可行性和有效性。     

执行功能和心理理论关系的发展研究

自1996年 Russell首次提出关于执行功能和心理理论关系的理论以来,二者关系的发展研究已成为近年来发展心理学研究的一个热点。一种观点认为,执行功能的发展是心理理论的基础;另一种观点认为,心理理论中的元表征能力的发展是执行功能的前提;更多的观点认为,心理理论和执行功能的发展均依赖于某种共同的认知基础。但由于已有的研究很少涉及到对这两种能力早期形成的婴儿期的研究,故还难以准确界定二者之间复杂的相互关系。     

Approximation of power in multivariate analysis

We consider the calculation of power functions in classical multivariate analysis. In this context, power can be expressed in terms of tail probabilities of certain noncentral distributions. The necessary noncentral distribution theory was developed between the 1940s and 1970s by a number of authors. However, tractable methods for calculating the relevant probabilities have been lacking. In this paper we present simple yet extremely accurate saddlepoint approximations to power functions associated with the following classical test statistics: the likelihood ratio statistic for testing the general linear hypothesis in MANOVA; the likelihood ratio statistic for testing block independence; and Bartlett's modified likelihood ratio statistic for testing equality of covariance matrices.     

Random Weighted Bootstrap Method for Recurrent Events with Informative Censoring

Using the data from the AIDS Link to Intravenous Experiences cohort study as an example, an informative censoring model was used to characterize the repeated hospitalization process of a group of patients. Under the informative censoring assumption, the estimators of the baseline rate function and the regression parameters were shown to be related to a latent variable. Hence, it becomes impractical to directly estimate the unknown quantities in the moments of the estimators for the bandwidth selection of a smoothing estimator and the construction of confidence intervals, which are respectively based on the asymptotic mean squared errors and the asymptotic distributions of the estimators. To overcome these difficulties, we develop a random weighted bootstrap procedure to select appropriate bandwidths and to construct approximated confidence intervals. One can see that our method is simple and faster to implement from a practical point of view, and is at least as accurate as other bootstrap methods. In this article, it is shown that the proposed method is useful through the performance of a Monte Carlo simulation. An application of our procedure is also illustrated by a recurrent event sample of intravenous drug users for inpatient cares over time.     

唯识宗、禅宗对"境界"理论的构建作用

"境界"是中国文艺批评中的重要理论范畴.不同佛教宗派的境界理论对中国文艺批评境界理论的形成有着多重的构建性作用.特别是法相唯识宗的境界观构建了中国文艺批评境界理论的结构性心理空间.中国禅宗则使这一空间转换为审美境界,从而完成了对中国文艺境界理论的基础性建构.     

全球化视野中的“交往”理论初探

交往关系是人类社会中最基本的关系,是人类生产和生活的基础,是人类历史的起点,是一切历史的基本条件.本文揭示了哲学意义上"交往"一词的含义、根据和历史形式,全面分析了交往的社会功能,并结合当前人类社会生活重大实践,为从交往角度客观理解全球化问题提供了一个合理的维度.     

代数体函数的相对亏量(英文)

本文讨论了代数体函数的相对亏量问题，推广了A．P．Singh的一些结果。     

几种传输线的场分布

求开放平板线、外正三角形內圆同轴线、外方內圆同轴线、外正六边形內圆同轴线的特性阻抗而建立的精确保角变换的基础上,本文进一步讨论了显式逆变换函数,从而求得了这几种传输线的场分布的闭合表达式。由于所用保角变换的精确性,所得的显式场分布在内导体和外导体的内接圆尺寸之比小于0.5in。基本上是准确的,在这个尺寸比稍大些时也可作为参考。这些场分布对于了解传输线的功率容量,计算衰减常数,考虑功率耦合,设计有关的有源器件等都是必不可少的。文中获得的几种传输线的场分布的显著特点是计算方便,在一般实用范围內有足够的精度。     

Some characterizations of distributions of the exponential-type

We consider a particular subclass of the two-parameter exponential family with natural parameters γ₁, γ₂ and characterize those distributions of the family having a ratio of the mean value and the variance that is a linear function of γ₁ by the form of the moment generating function. As special cases we find the normal and the gamma distributions.     

论农村庭院经济在社会主义新农村建设中的作用

通过对重庆市农村庭院经济的调查分析,归纳了农村庭院经济的主要类型,阐述了农村庭院经济在利用农村土地资源、解决农村剩余劳动力就业问题、有效利用农村资源等方面所起的重要作用,得到了发展农村庭院经济是有效增加农民收入、实现循环农业生产、培养社会主义新型农民的重要生产模式的启示。