湖北省油菜保险纯费率比较研究——基于不同单产分布下的实证研究

在农作物保险费率厘定当中,期望损失是影响纯费率准确性的关键因素,因此在不同的产量分布下会出现不同的纯费率,本文使用四种参数方法与一种非参数方法,共五种分布对湖北省78个县市①的油菜单产保险纯费率进行厘定,发现不同分布下厘定的费率明显不同,并采取定性与定量相结合的方法对五种分布拟合的效果做出评价。     

国外环保投资基金经验对我国的启示

环保投资基金在国外不断发展壮大,主要模式有政府引导型基金、风险投资型基金和股票投资型基金等.国外政府制定政策支持环保投资基金的发展与运作,发挥政府的引导作用,明确基金的管理权限,制定严格的基金项目选择标准,实现环保领域投资多元化.我国应借鉴国外经验,通过设立政府引导型环保基金、制定环保基金的优惠政策、制定环保基金投资规范和扩展环保基金投资领域等方式,发展我国的环保投资基金.     

我国中小企业信贷风险识别因子的有效性分析——基于北京地区中小企业的信贷数据

中小企业在世界多国经济发展中占有举足轻重的地位,逐步成为商业银行主要的信贷对象,巴塞尔资本协议Ⅱ(BaselⅡ)由此对中小企业作出了重要性规定,以提高银行对中小企业客户信贷风险管理的重视。鉴于我国中小企业信贷数据缺失和质量较差的现状,本文以北京地区中小企业信贷数据为基础,利用二项逻辑回归(binary logistic)分析,比较定量数据和定性数据在我国中小企业信用风险识别中的重要性,并探求我国中小企业信用风险判别中较为重要的变量。本文的结论也将对与中国具有相似中小企业信贷现状的发展中国家具有一定程度的借鉴意义。     

Enhance the Effects of College English Teaching with the Application of Cooperative Learning

合作性学习(Cooperative Learning)是一种新兴教学理论与策略。对于改善学生课堂内的社会心理气氛,大面积提高学生的学业成绩,促进学生良好的非认知品质的发展起到了积极的作用,其实效令人瞩目。与人合作是一个人踏入社会所必须具备的基本素质,没有团队精神的人,必然会遭遇挫折和失败。因此合作性学习的探讨具有很重要的现实意义。本文就结合内蒙古财经学院大学英语教学现状,认识到无论教师间,师生间,生生间的合作都很欠缺,合作意识不强,且教学效果不明显的问题,就合作性学习在英语学习中的作用及运用效果展开探讨,提出可行性见解,以期对提高大学英语教学效果有所帮助。     

微波消化—氢化物发生原子荧光法同时测定枸杞及其制品中的痕量砷和汞

采用AFS-230E型双道原子荧光光谱仪建立了氢化物发生-原子荧光法同时测定枸杞及其制品中痕量的As和Hg.研究了仪器条件、酸度、KBH4浓度等因素对测定的影响,在最佳工作条件下,As和Hg的检出限分别为0.07ng/mL和0.02ng/mL,回收率分别为92%～105%和85%～96.5%,RSD分别为1.03%和2.10%.     

More Dialogue and Further Development

In January 2008 Slovenia took over the six-month rotating Presidency of the EU Council and this is the first time since the wide EU expansion in 2004 that a new member state bears this responsibility. China is Slovenia＇s most important trading partner in Asia and in the past few years the turnover between China and Slovenia has been increasing steadily. Since 1992, China and Slovenia have maintained high-level contacts and regular dialogue. In November 2007, Slovenian Prime Minister Janez Jansa paid a visit on the state level, which was very successful and provided a new push for further strengthening of bilateral ties. This year marks the 16th anniversary of the establishment of diplomatic relations between China and Slovenia. China＇s Foreign Trade appreciated the opportunity to interview His Excellency Dr. Marjan Cencen, ambassador of the Republic of Slovenia to the People＇s Republic of China, and discuss bilateral relations of the two countries, the new business exchange, while also taking a look at relations between China and EU.     

Increasing Inflationary Pressure

China＇s CPI rose to 8.7 percent in February after hitting 7.1 percent in January,creating a 12-year high, the National Bureau of Statistics said.The figure exceeded market expectations,as the Bank of China,the country＇s second- largest lender,     

Integrating decomposition approaches for the analysis of temporal changes in economic structure: an application to Chicago's economy from 1980 to 2000

This paper presents an attempt to integrate two flow decomposition methods to analyse temporal changes in a region's economic structure. The two methods of structural analysis are push–pull decomposition analysis and structural Q-analysis. Push–pull analysis presents a quasi-optimization decomposition of a set of matrices with actual intersectoral economic flows into a weighted set of matrices, while structural Q-analysis provides a form in which the structure of these decomposed flows can be considered. The paper provides an expository application to Chicago's economic structure over the period of 1980 to 2000, to reveal a complementary perspective of hollowing-out the production process in the Chicago economy that was identified in previous studies.     

基于支架式教学法的《仪器制造工艺学》课程建设与实践

支架式教学模式是一种建立在建构主义理论基础上的教学方法,它适用于学习实践性强和综合性较强的知识和技能。结合仪器制造工艺学课程的教学特点和教学内容,尝试将支架式教学模式合理应用于《仪器制造工艺学》课程的教学中,并详细论述了从支架的搭建、布置、任务完成到总结与评价的全过程,探讨了支架式教学模式应用时应注意的问题。     

加强细节管理 确保蒸汽管网冬季平稳运行

对全厂蒸汽管网现状进行分析,制定措施,确保冬季蒸汽管网安全平稳运行。