利用Slony进行Postgresql集群的研究

Postgresql是非常优秀的开源数据库系统软件，postgresql已被广泛应用于各种管理信息系统及网站中。本文将探讨如何利用slony开源软件对postgresql进行主一从式集群的配置及管理，从而使得postgresql能更强大的处理各种查询请求。     

思维素质与概念教学法

思维素质是其他素质基础,应以培养学生实际抽象思维能力为出发点,改变工科基础课中限制思维对象的现状,采用替代应试教学的概念教学法,培养自学能力,追求可操作的思维素质的提高。     

中国农村家庭性别关系研究述评

男人和女人之间的性别关系,始终是人类永恒的话题。本文侧重从纵的历史线索,把中国妇女的命运和中国革命、中国现代化进程以及世界的变化紧密联系在一起来梳理了中国农村家庭性别关系研究。     

我国零售业电子商务发展探讨

当前,我国零售业电子商务发展存在的问题,主要体现在信息不对称影响消费者决策,交易双方的信用难以确保,支付安全问题令人担忧,物流体系滞后制约零售业电子商务发展等方面.政府应从完善信用体系,保障支付安全,加强物流系统建设,重视人才培养等方面入手,切实解决零售业电子商务在发展过程中存在的问题,从而实现我国零售业电子商务的新发展.     

TASTE FOR VARIETY AND OPTIMUM PRODUCT DIVERSITY IN AN OPEN ECONOMY

We extend the Benassy 'taste for variety' model to an open economy setting. With the Benassy effect, the market equilibrium is inefficient, openness reduces the varieties provided in the unconstrained optimum and there are potential gains from international coordination.     

Exchange Rate Changes and Export Prices in a Small Semi-Open Economy

This paper analyses the reaction of export prices to exchange rate changes in Nigeria. The major proposition examined in the study is that, exchange rate changes are not reflected fully in the prices of the country's exports. The analysis suggests that manufactured export firms in the country may have been price discriminating between domestic and export markets; only about 93% of exchange rate changes occurring in the period 1986 to 1995 is shown as reflected in the domestic price of manufactured export. However, this result is qualified by the fact that, over 75% of the data analysed were generated.     

Users’ perceptions of two types of hotel reservation Web sites

Building on the technology acceptance model (TAM), this study examined users’ perceptions of reservation Web sites: hotel-owned and third-party. As an experimental study, this study tested whether a modified variant of the TAM could be used to evaluate users’ perceptions of two different channels for hotel online reservations. Perceived usefulness was a key predictor of users’ attitudes toward using hotel-owned Web sites, while perceived ease of use was a key predictor of users’ attitudes toward using third-party Web sites. Both perceived playfulness and attitudes were two key predictors of users’ intentions to use hotel reservation Web sites. However, no significant differences in users’ perceptions were found between the two types of Web sites. Overall, users had more favorable attitudes and higher intentions to revisit third-party Web sites than hotel-owned Web sites.     

新课程背景下师范生数学交流能力的培养

基础教育新数学课程在基本理念和具体内容上都发生了较大变化，这些变化对师范生提出了许多新的挑战和期待。高等师范院校教师在培养师范生数学交流能力时，要注意以下几点：教材编写要为学生留有交流的空间；因地制宜做好发展课程；尝试新的教学方法；培养学生快速阅读科技类文章；交流可以作为评价学生学习的一种方式；高等师范数学教师之间相互交流。     

Distance and trade: Disentangling unfamiliarity effects and transport cost effects

This paper provides evidence supporting Grossman's (Comments on Alan V. Deardorff, Determinants of bilateral trade: Does gravity work in a neoclassical world?. In: Jeffrey A. Frankel (Ed.), The regionalization of the world economy. Chicago: University of Chicago for NBER; 1996) claim that not only transport costs but also unfamiliarity can explain the negative correlation between geographic distances and bilateral trade volumes. A gravity model that controls for as many natural causes of trade as possible reveals that countries high in uncertainty-aversion (based on Hofstede's survey) export disproportionately less to distant countries (with which they are presumably less familiar). More important, this result is mainly driven by differentiated products, not by products with international organized exchanges or with reference prices. For transport costs alone to explain such a trade pattern, one would have to assume that distance-related ad valorem transport costs are higher when a trade route originates from a high uncertainty-aversion country, which is unlikely. This trade pattern is easy to explain, however, if one accepts that geographic distance is a proxy for unfamiliarity and that exporters in high uncertainty-aversion countries are more sensitive to informational ambiguity. A further result is that high uncertainty-aversion countries trade less and thus grow poorer in the long run, which suggests that cultural factors are as important as geographic ones in determining trade openness and prosperity.     

高职院校经贸管理类非会计专业会计课程整合探析

很多高职院校经贸管理类非会计专业会计课程的开设，未能有效实现其教学目标与学生职业能力培养目标。解决这一问题的关键是要围绕学生职业能力培养目标，实现其会计课程的有效整合，并加强教材建设。