不同维度空间推理下 ERP 对比研究

借助立体图形,将英文字母与心理旋转相结合,探讨在二维和三维空间条件下,演绎推理之间的脑电差异。结果发现,在结论判断中;三维空间条件需要更多的认知资源,并且在推理加工中具有左脑优势。     

基于改进EMD 的地震信号去噪

压制随机噪声是地震数据处理过程中的一个重要环节,目前大多数去噪技术都不同程度存在去噪效果差、易损伤有效信号等问题。利用经验模态分解可将信号自适应地分解为不同特征尺度固有模态函数的优点,及小波变换模极大值滤波方法对噪声的依赖性较小且适合于低信噪比信号去噪的优势,构造了一种经验模态分解与小波变换模极大值相结合的新的去噪算法,该算法很好地实现了地震有效信号与随机噪声的分离,有效提高了地震数据信噪比。将该算法应用于仿真实验和实际地震数据处理,结果都表明该方法明显优于常规经验模态分解去噪效果。     

“V一临时量词N”结构中“一”的省略与保留

通过对具体语言事实的静态与动态考察，对“V一临时量词N”结构中“一”的省略与保留问题进行分析和探讨，以揭示该结构中“一”的省略与保留的制约因素。     

Negative dependence in frailty models

This note investigates the negative dependence in frailty models. First, we show that the frailty variable and the overall population variable are negatively likelihood ratio dependent and derive an upper bound for the survival function of the population with higher frailty. Secondly, we prove that the DFR property and the logconvex hazard rate of the baseline variable imply the DLR property of the population variable. Finally, we further prove that the likelihood ratio order, hazard rate order and reversed hazard rate order between two frailty variables imply the likelihood ratio order, reversed hazard rate order, and hazard rate order between the corresponding overall population variables, respectively.     

The CLT under right censorship and reporting delays

We extend the central limit theorem (CLT) under right censorship to the case when at the time of analysis we may have reporting delays. Under weak moment assumptions we derive an i.i.d. representation of the estimator, from which asymptotic normality easily follows.     

现代汉语结构助词“的”和老挝语结构助词thi︶33的对比研究

汉语结构助词"的"前后成分与老挝语结构助词thi^︶33相对应的后前成分有异同,尤其表现在老挝语里的thi^︶33字短语的使用范围比汉语里的"的"字短语小得多。在"的"和thi^︶33的隐现规律的异同中,又表现为特别老挝语里的结构助词和汉语的结构助词一样具有凸显偏项的功能,不同的是汉语内涵定语是否加"的"形成称谓性定语和非称谓性定语的对立,而老挝语里没有这种对立,老挝语里表称谓性的定语不加结构助词,而一些描写性的定语也同样可以不加结构助词。     

Additive hazards regression with censoring indicators missing at random

In this article, the authors consider a semiparametric additive hazards regression model for right‐censored data that allows some censoring indicators to be missing at random. They develop a class of estimating equations and use an inverse probability weighted approach to estimate the regression parameters. Nonparametric smoothing techniques are employed to estimate the probability of non‐missingness and the conditional probability of an uncensored observation. The asymptotic properties of the resulting estimators are derived. Simulation studies show that the proposed estimators perform well. They motivate and illustrate their methods with data from a brain cancer clinical trial. The Canadian Journal of Statistics 38: 333–351; 2010 © 2010 Statistical Society of Canada     

The impact of the EU sugar trade reform on poor households in developing countries: A general equilibrium analysis

We use a modified version of the applied general equilibrium model GTAP, called GTAP_MH, to evaluate the impact of a reduction in the EU's support price for sugar on income distribution of African households. For LDC countries, non-ACP but participant in the EBA initiative a +2% change is indicated in term of income generation across all ten social strata identified within GTAP_MH framework, with positive percentage changes in supply prices at household level of endowment commodities, and positive percentage changes in price indices for private household expenditures. The big losers will be those countries that would no longer be able to compete at an international level as a result of the lost preferences.     

名词动用转义的隐喻思维及其修辞审美效应

名词动用是一种隐喻性的思维过程。名词动用的转义修辞价值通过转义的方式来认识世界和传达意见。语义的扩展、衍生、引申的过程使句子达到一种不拘形式而精练、生动的修辞效果和审美效应。词语在转义过程中潜在信息蕴含得越丰富,审美信息量就越大。