《毛泽东思想万岁》重要版本评介(五)

北师大版7本是有两种封面的一套万岁本,它的编印分多次;瘦宋版是册数最多的一套万岁本,共有11册,它们的突出特点是形式并不统一。     

壮族天琴源流探微——壮族天琴文化研究之二

通过对文献和田野调查资料的分析,初步认为:壮族天琴发源于广西龙州县金龙镇(古为金龙峒),源自当地原住民族壮族布傣族群在祭祀活动中使用的礼器或法器"叮鼎",其早期历史可以追溯到距今两千多年以前的战国至汉代的骆越人。宋至清代流传至凭祥、宁明、防城等地,中法战争后流传到与广西相邻的越南地区。     

分权与旅游治理:基于欠发达地区的实证分析

许多发展中国家实行高度的中央集权,学界对国家政治体制的集权化及其作用已经进行许多有益的探讨,但是对分权的利弊及存在问题却没有深入涉及。本文首先回顾区域治理中的分权理论,提出了一个权力配置、分权控制及其政治规范性的区域治理分析框架,用于描述国家权力在旅游治理中的运行机制,以北部湾旅游发展的实践为例,通过考察中央政府和地方政府、地方企业以及非政府组织在权力治理网络中成长态势,评估广西地方政府在区域旅游治理中的效力,研究发现地方政府在参与决策制定方面仍面临种种困难。     

高等师范语文教育环境初论

中国的师范教育已有百余年历史。语文教育是一切教育的基础之基础。语文素质的特殊性决定了语文教育的特殊性,语文教育的特殊性导致了语文师范教育环境的独特性。本文从语文教育独特的创新环境、语文学科研究能力和语文教学实践能力并举、强化综合素质教育的同时融入师范性教育、寻求语文教育中人文性教育和工具性教育的平衡点等方面对高等师范语文教育环境的特殊性进行探讨。     

Influence diagnostics for the structural sharpe model under normal/independent distributions

A method is proposed in this paper to assess the local influence of minor perturbations for the Sharpe model when the normal distribution is replaced by normal/independent (NI) distributions. The family of NI distributions is an attractive class of symmetric heavy-tailed densities that includes as special cases the normal, t-Student, slash, and the contaminated normal distributions. Since the returns of the market are not observable, the statistical analysis is carried out in the context of an errors-in-variables model. An influence analysis for detecting influential observations (atypical returns) is developed to investigate the sensitivity of the maximum likelihood estimators. Diagnostic measures are obtained based on the conditional expectation of the complete-data log-likelihood function. The results are illustrated by using a set of shares of companies traded in the Chilean stock market.     

Fathers' birth experience in relation to midwifery care

The aim was to identify the proportion of fathers having a positive experience of a normal birth and to explore factors related to midwifery care that were associated with a positive experience.

Background

Research has mainly focused on the father's supportive role during childbirth rather than his personal experiences of birth.

Methods

595 new fathers living in a northern part of Sweden, whose partner had a normal birth, were included in the study. Data was collected by questionnaires. Odds Ratios with 95% confidence interval and logistic regression analysis were used.

Results

The majority of fathers (82%) reported a positive birth experience. The strongest factors associated with a positive birth experience were midwife support (OR 4.0; 95 CI 2.0–8.1), the midwife's ongoing presence in the delivery room (OR 2.0; 1.1–3.9), and information about the progress of labour (OR 3.1; 1.6–5.8).

Conclusion

Most fathers had a positive birth experience. Midwifery support, the midwife's presence and sufficient information about the progress of labour are important aspects in a father's positive birth experience. The role of the midwife during birth is important to the father, and his individual needs should be considered in order to enhance a positive birth experience.     

Interorganizational Determinants of Environmental Purchasing: Initial Evidence from the Consumer Products Industries*

Environmental purchasing consists of the purchasing function's involvement in activities that include reduction, recycling, reuse, and substitution of materials. Despite the potentially important role that the purchasing function can play in a firm's environmental activities, little research has been performed to date that examines the factors that impact environmental purchasing. The authors develop and empirically test a theoretical model that examines how interorganizational factors both drive and constrain purchasing's involvement in environmental activities. The empirical findings suggest that environmental purchasing activities will be facilitated through increased coordination with suppliers as well as downstream members of the supply chain, including retailers. The results also suggest the need for increased coordination within the firm, particularly between the purchasing function on the inbound side and marketing and distribution functions on the outbound side.     

Optimal Policy for a Reseller When the Supplier Offers a Temporary Reduction in Price*

A common practice in product distribution is the case in which the supplier offers a temporary reduction in price. It is suggested in the literature that in such situations, the reseller may engage in forward buying (i.e., purchasing additional stock at the reduced price offered by the supplier for later sale at the regular selling price). In this paper, a model is formulated of the reseller's response when the supplier offers a temporary reduction in price. It is assumed that the market demand for the product is elastic with respect to the selling price the reseller sets. A procedure for determining the optimal response of the reseller is developed. The model presented in this paper can easily be adapted to the case in which the reseller faces a permanent increase in the price charged by the supplier.     

Effects of some design factors on the distribution of similarity indices in cluster analysis

This article investigates the effects of number of clusters, cluster size, and correction for chance agreement on the distribution of two similarity indices, namely, Jaccard and Rand indices. Skewness and kurtosis are calculated for the two indices and their corrected forms then compared with those of the normal distribution. Three clustering algorithms are implemented: complete linkage, Ward, and K-means. Data were randomly generated from bivariate normal distributions with specified means and variance covariance matrices. Three-way ANOVA is performed to assess the significance of the design factors using skewness and kurtosis of the indices as responses. Test statistics for testing skewness and kurtosis and observed power are calculated. Simulation results showed that independent of the clustering algorithms or the similarity indices used, the interaction effect cluster size x number of clusters and the main effects of cluster size and number of clusters were found always significant for skewness and kurtosis. The three way interaction of cluster size x correction x number of clusters was significant for skewness of Rand and Jaccard indices using all clustering algorithms, but was not significant using Ward's method for both Rand and Jaccard indices, while significant for Jaccard only using complete linkage and K-means algorithms. The correction for chance agreement was significant for skewness and kurtosis using Rand and Jaccard indices when complete linkage method is used. Hence, such design factors must be taken into consideration when studying distribution of such indices.     

Single-stage sampling procedure of the t best populations under heteroscedasticity

Given k( ? 3) independent normal populations with unknown means and unknown and unequal variances, a single-stage sampling procedure to select the best t out of k populations is proposed and the procedure is completely independent of the unknown means and the unknown variances. For various combinations of k and probability requirement, tables of procedure parameters are provided for practitioners.