A new biased estimator based on ridge estimation

In this paper we introduce a new biased estimator for the vector of parameters in a linear regression model and discuss its properties. We show that our new biased estimator is superior, in the mean square error(mse) sense, to the ordinary least squares (OLS) estimator, the ordinary ridge regression (ORR) estimator and the Liu estimator. We also compare the performance of our new biased estimator with two other special Liu-type estimators proposed in Liu (2003). We illustrate our findings with a numerical example based on the widely analysed dataset on Portland cement.     

Latent class analysis for measuring Turkish People's future expectations for Turkey

The aim of this study is to classify the Turkish People and measure the probability of their positive or negative expectations according to their 5-year expectations on Turkish Economy, Social Rights and Freedom, Rendering of the Public Services, Government Transparency and Turkey's Reputation. For this purpose latest data from the Turkish Statistical Institute's Life Satisfaction Survey 2011 was used and latent class analysis (LCA) was utilized on this data. For this study, unrestricted and restricted models of LCAs were performed, and it is observed that the three-class unrestricted model was found to be the best fit. Latent Class probabilities were interpreted and each class was named based on the calculated conditional probabilities.     

r − k Class estimator in the linear regression model with correlated errors

Autocorrelation in errors and multicollinearity among the regressors are serious problems in regression analysis. The aim of this paper is to examine multicollinearity and autocorrelation problems concurrently and to compare the r ? k class estimator to the generalized least squares estimator, the principal components regression estimator and the ridge regression estimator by the scalar and matrix mean square error criteria in the linear regression model with correlated errors.     

Implementing egalitarianism in a class of Nash demand games

We add a stage to Nash’s demand game by allowing the greedier player to revise his demand if the demands are not jointly feasible. If he decides to stick to his initial demand, then the game ends and no one receives anything. If he decides to revise it down to \(1-x\), where x is his initial demand, the revised demand is implemented with certainty. The implementation probability changes linearly between these two extreme cases. We derive a condition on the feasible set under which the two-stage game has a unique subgame perfect equilibrium. In this equilibrium, there is first-stage agreement on the egalitarian demands. We also study two n-player versions of the game. In either version, if the underlying bargaining problem is “divide-the-dollar,” then equal division is sustainable in a subgame perfect equilibrium if and only if the number of players is at most four.     

Doubly reweighted estimators for the parameters of the multivariate t-distribution

The t-distribution (univariate and multivariate) has many useful applications in robust statistical analysis. The parameter estimation of the t-distribution is carried out using maximum likelihood (ML) estimation method, and the ML estimates are obtained via the Expectation-Maximization (EM) algorithm. In this article, we will use the maximum Lq-likelihood (MLq) estimation method introduced by Ferrari and Yang (2010 Ferrari, D., and Y. Yang. 2010. Maximum lq-likelihood estimation. The Annals of Statistics 38 (2):753–83.[Crossref], [Web of Science ®] , [Google Scholar]) to estimate all the parameters of the multivariate t-distribution. We modify the EM algorithm to obtain the MLq estimates. We provide a simulation study and a real data example to illustrate the performance of the MLq estimators over the ML estimators.     

英汉口误的共性

口误存在于一切自然语言的生成过程之中。英汉口误之间有着极大的共性,具体表现为: 1. 折射两种语言基本相同的言语生成模式; 2.存在共有的类型; 3.具有共同的制笑功能; 4.受制于各自所属的社会文化。     

多维健康观下高校球类专项课教改研究

以生理、心理、社会相结合的"多维健康”为目标的现代体育教育观的确定,赋予高校体育以新的生命力,球类专项课作为高校体育教学的一个重要方面,必须进行相应改革.将球类专项课视为一个相对独立的系统,从教学的内容、组织形式以及考试和成绩评定的办法等层面进行了较为深入的思考和探索,旨在不断改进教学方法,激发学生学习的积极性和全面提高学生的健康水平,并为最终推进新世纪高校体育教学改革提供借鉴与参考.     

高等级生物安全实验室废水风险控制及评估研究

目的开展高等级生物安全实验室（BSL）的废水风险控制以及废水的环境风险评估研究,为高等级BSL废水的环境风险控制与管理服务。方法通过检索国内外相关研究成果,系统分析了高等级BSL产生的废水种类、感染性及其处置流程,分析了可能产生环境风险事故的节点及污染传播途径,研究了病原微生物的感染性、风险严重程度、可控性、影响范围和感染人群等因素。结果制定了高等级BSL废水风险控制的方法,提出了环境风险评估分级的方法以及高等级BSL风险防范措施。结论通过本研究提出的高等级BSL废水风险控制的方法以及环境风险评估分级和管理的方法,可有效预防和处理高等级BSL废水引起的环境风险事故。     

微时代视阈下高校社会主义 核心价值体系的传播

微时代即以微博作为传播媒介代表,以短小精炼作为文化传播特征的时代。信息传播速度更快、传播内容更具冲击力和震撼力。社会主义核心价值体系决定中国特色社会主义发展方向。但是微时代传播的及时性、自主性、裂变式、碎片式等特点对高校社会主义核心价值体系传播提出了新挑战。要建立思想政治理论课课堂与微时代各新媒体形态的互动机制;重视意见领袖,发挥意见领袖正能量;加强社会主义核心价值体系传播队伍的建设,通过这些来提高高校社会主义核心价值体系传播效率。     

Beyond essentialism: negotiating Alevi identity in urban Turkey

In Turkey, the Alevi cultural ‘revival’ of the 1990s has been followed by a multifaceted identity-formation process that involves conflicting religio-cultural agendas, intersecting discourses and differing politico-ideological affiliations. Lacking a focus, this process continues to trigger an enriching public debate on Alevi identity, which has been coined an ‘enigma’ and is considered to be associated with ‘ambiguity’ and ‘ambivalence’ by many. What lies beneath the veil of ambiguity has to do with the ‘anti-essentialist’ transformation of Alevism, which reaches beyond religious, cultural and political orthodoxies. As a result of diverse political loyalties, contestation of discourses on Alevi culture and identity and the equivocal character of the Alevi subject, the Alevis seem to be resisting essentialism. In urban Turkey, an anti-essentialist discourse potentially influencing Alevism, I argue, enables the Alevi self to act with a sense of reflexivity and to search for ways to avoid political, cultural or religious orthodoxies.