他山之石--西方学界对中国回族伊斯兰教的研究述评

本文在阅读原著的基础上,回顾了自19世纪下半期以来西方学者尤其是英美学者对中国回族伊斯兰教进行研究的标志性作品,并试图对其内容、方法和观点进行扼要的评述,以观照当前国内正在兴起的回族学研究.     

董作宾:乡土研究的先驱

20世纪中国民间文艺学史上存在过多种流派 ,如歌谣研究会、文学人类学派、社会—民族学派、“古史辨”派神话学、民俗学派、俗文学学派、延安学派等。作为第一个流派的歌谣研究会 ,是一个颇松散的团体和流派 ,其中持乡土研究观点的学者 ,如顾颉刚、常惠、董作宾、台静农、钟敬文、罗香林、白启明、刘经等 ,在歌谣研究会流派中占主流地位。本文以董作宾的《看见她》母题研究及其他研究为个例 ,阐明乡土研究思潮是 2 0世纪中国现代民间文艺学的最早的一种研究思潮 ,董作宾 (以及顾颉刚等 )在实践和理论上的成就 ,奠定了中国民间文艺学作为一个独立的人文学科的最初的理论基础。本文从 (1)“母题”的引入和比较研究的实践 ,(2 )家乡歌谣学应时而生 ,(3)考订与考订者 ,(4)综合研究模式的尝试四个方面 ,对董作宾的民间文艺学思想遗产和历史地位作历史的考察。     

提高民族学生英语发音的方法

提高学生的英语语音发音对提高民族学生的英语整体水平起着不容质疑的基石作用。本文就如何开展该方面的教学、培养学生的学习兴趣及学习技巧提出一些浅显的建议。     

少数民族地区旅游开发条件比较研究--以甘肃省肃南县和贵州省黎平县为例

文章通过特尔菲法建立少数民族地区旅游开发条件评价的指标体系 ,利用该指标体系对甘肃省肃南县和贵州省黎平县进行单项评分和综合评价 ,并依据分析结果对两地旅游业的发展提出建议。     

少数民族双语教学的现状及发展趋势

双语教学涉及教育学、心理学、文化人类学、教育政策学等方方面面的研究领域 ,在民族地区民族学校双语教学的有关政策和法规的制定和完善上 ,要充分体现国际多元文化教育的大背景 ,积极发展多元化文化课程研究和构建双语教育的“多元一体格局”。     

西北地区回族、撒拉族、维吾尔族民间婚俗舞蹈比较研究(连载)

在甘、青、宁和新疆地区 ,在民间婚礼中 ,曾经活跃着三种婚俗性的民间舞蹈表演。然而 ,随着历史的推进 ,也出现了舞蹈历史兴衰的现象。本文以生活在中国西北地区的撒拉族、回族、维吾尔族的婚礼中的舞蹈为研究对象 ,在大量第一手调查资料、文献资料的基础上 ,试图分析《堆依奥依纳》、《宴席舞》、《纳孜尔库姆》这三种婚俗舞蹈各自兴衰的过程     

民国时期甘宁青边疆教育研究述评

推行边疆教育是南京国民政府的一项重要举措,在当时取得了一定成效。对此问题的研究具有积极的现实意义。本文对民国以来甘宁青边疆教育研究状况进行简要述评,并提出今后应注重研究的问题。     

An improved alternative estimation procedure for current population mean in presence of positively and negatively correlated auxiliary variables in two-occasion rotation patterns

Abstract

The present study confirms the influential role of a positively and a negatively correlated auxiliary variables in enhancing the precision of estimates of current population mean in two occasion rotation (successive) sampling. Exponential-type estimators of current population mean have been proposed for three different situations: (i) the information on a positively correlated auxiliary variable is readily available on both occasions (ii) the information on a negatively correlated auxiliary variable is readily available on both occasions and (iii) the information on both positively and negatively correlated auxiliary variables are readily available on both the occasions. The characteristics of the proposed estimators have been explored and their efficacious performances are compared with the natural and recent contemporary estimators. Optimum replacement strategies of the proposed estimation procedures have been formulated. Simulation and empirical studies are carried out to justify the proposition of the proposed estimators and appropriate recommendations have been put forward to the survey practitioners.     

Distribution of the two‐sample t‐test statistic following blinded sample size re‐estimation

We consider the blinded sample size re‐estimation based on the simple one‐sample variance estimator at an interim analysis. We characterize the exact distribution of the standard two‐sample t‐test statistic at the final analysis. We describe a simulation algorithm for the evaluation of the probability of rejecting the null hypothesis at given treatment effect. We compare the blinded sample size re‐estimation method with two unblinded methods with respect to the empirical type I error, the empirical power, and the empirical distribution of the standard deviation estimator and final sample size. We characterize the type I error inflation across the range of standardized non‐inferiority margin for non‐inferiority trials, and derive the adjusted significance level to ensure type I error control for given sample size of the internal pilot study. We show that the adjusted significance level increases as the sample size of the internal pilot study increases. Copyright © 2016 John Wiley & Sons, Ltd.     

Model averaging inconcentration–QT analyses

This article describes how a frequentist model averaging approach can be used for concentration–QT analyses in the context of thorough QTc studies. Based on simulations, we have concluded that starting from three candidate model families (linear, exponential, and Emax) the model averaging approach leads to treatment effect estimates that are quite robust with respect to the control of the type I error in nearly all simulated scenarios; in particular, with the model averaging approach, the type I error appears less sensitive to model misspecification than the widely used linear model. We noticed also few differences in terms of performance between the model averaging approach and the more classical model selection approach, but we believe that, despite both can be recommended in practice, the model averaging approach can be more appealing because of some deficiencies of model selection approach pointed out in the literature. We think that a model averaging or model selection approach should be systematically considered for conducting concentration–QT analyses. Copyright © 2016 John Wiley & Sons, Ltd.