理论文本转型与文论核心概念的意涵迁移——关于当代文学理论演变方式的反思

新世纪以来当代文学理论发展进入一个活跃的概念反思和体系重建时期.文学理论文本在建国后经历了前苏联文论、本土传统文论与西方现代文论的碰撞、融会,理论文本的转型在不同历史阶段存在不同的范型构建,文学理论的核心概念阐释在不同时期、不同著者那里呈现选择上的差异."文学是什么?""政治的意义何在?"对于这些马克思主义文学理论必须直面的理论话题,解答的过程和结语本身构成理论文本的思想文化背景;文论核心概念的意涵迁移,显示着当代文学理论自身的历史性演变进程.     

Testing non-nested log-linear models with pseudo estimator

As the number of random variables for the categorical data increases, the possible number of log-linear models which can be fitted to the data increases rapidly, so that various model selection methods are developed. However, we often found that some models chosen by different selection criteria do not coincide. In this paper, we propose a comparison method to test the final models which are non-nested. The statistic of Cox (1961, 1962) is applied to log-linear models for testing non-nested models, and the Kullback-Leibler measure of closeness (Pesaran 1987) is explored. In log-linear models, pseudo estimators for the expectation and the variance of Cox's statistic are not only derived but also shown to be consistent estimators.     

"新教改"与公共教育资源配置:问题与对策

由教育资源配置不当导致的教育不公平已经成为制约社会经济发展的亟待解决的问题之一.教育资源配置失当的根源在于转型期效率和管理至上的教育行政化、官僚化的管理体制."新教改"的当务之急,是切实转变政府职能,废除教育领域的行政化、官僚化,赋予各级学校办学的自主权；同时还要改革公共财政对教育的投入机制,在高等教育与基础教育领域实行分层分类的办学模式,不断优化教育资源配置.其具体措施包括：名牌学校主要采取自主招考、自主收费等市场化的方式筹资办学,鼓励和促进民间办学；而国家财政则重点投向一般性大中小学、边远贫困地区的学校.至于高等职业教育,则可以采行政府、市场与社会多元投资,以培养适应社会经济发展需要的实用型专业人才.     

控股股东掏空动机与多元化的盈余波动效应

多元化经营是公司关注的重大发展问题,因此,多元化经营的动机及其经济后果也成为学者们研究的重点话题。本文从我国上市公司的多元化经营与盈余波动性之间的关系入手对这一问题进行研究,具体分析了公司多元化经营的程度对盈余波动性的影响及控股股东的掏空动机对多元化盈余波动效应的作用。研究发现,我国上市公司的多元化经营显著降低了公司的盈余波动性,多元化程度越高,盈余的波动性越低;但由控股股东代理问题而形成的掏空动机损害了多元化的盈余波动效应。本文的研究为多元化的经济后果增添了新的文献,同时也为上市公司监管提供了参考依据。     

既有铁路钢桁梁桥运营性能的检测与评价

阐述既有铁路桥梁评价的内容和标准，针对评价标准提出了相应的检测方法。在朔黄铁路64 m栓焊下承式钢桁梁双线铁路桥的应用实践证明，该评价标准和检测方法对既有铁路钢桁梁桥运营性能的评价是合理的。     

A class of mean residual life regression models with censored survival data

When describing a failure time distribution, the mean residual life is sometimes preferred to the survival or hazard rate. Regression analysis making use of the mean residual life function has recently drawn a great deal of attention. In this paper, a class of mean residual life regression models are proposed for censored data, and estimation procedures and a goodness-of-fit test are developed. Both asymptotic and finite sample properties of the proposed estimators are established, and the proposed methods are applied to a cancer data set from a clinic trial.     

提高我国信息咨询业服务水平的对策研究

在全球信息咨询业迅猛发展的大背景下，通过对目前我国信息咨询业管理中存在问题的分析，探索提高我国信息咨询业服务水平的策略。     

Estimation of semiparametric regression model with longitudinal data

In a longitudinal study, an individual is followed up over a period of time. Repeated measurements on the response and some time-dependent covariates are taken at a series of sampling times. The sampling times are often irregular and depend on covariates. In this paper, we propose a sampling adjusted procedure for the estimation of the proportional mean model without having to specify a sampling model. Unlike existing procedures, the proposed method is robust to model misspecification of the sampling times. Large sample properties are investigated for the estimators of both regression coefficients and the baseline function. We show that the proposed estimation procedure is more efficient than the existing procedures. Large sample confidence intervals for the baseline function are also constructed by perturbing the estimation equations. A simulation study is conducted to examine the finite sample properties of the proposed estimators and to compare with some of the existing procedures. The method is illustrated with a data set from a recurrent bladder cancer study.     

坚持以中国特色社会主义理论体系统领哲学社会科学工作

努力推进马克思主义中国化、时代化、大众化,是党的十七大作出的重大战略决策,繁荣发展哲学社会科学是落实这一决策的重大而紧迫的战略任务。文章提出,以中国特色社会主义理论体系统领哲学社会科学工作,是坚持哲学社会科学繁荣发展正确方向的根本保证,是推动哲学社会科学不断繁荣发展的强大动力,是坚持党对哲学社会科学工作领导的必然要求。     

堆垒级数部分和的一般公式

利用阶乘幂差分的重要性质,得到堆垒级数部分和的一般公式.