Internet下IPv6演进技术的研究

介绍了IPv6的不足，IPv6的发展和特征，阐述了IPv6的演进机制，双协议栈技术，隧道技术，转换技术，详述了几种演进实用工具。     

A glimpse of the impact of pál erd#ous on probability and statistics

The title of this article notwithstanding, it is the author's aspiration here to provide a bit more than merely a glimpse of some of Erdõs's contributions per se to probability‐statistics. He hopes to have succeeded in providing a guided tour of, and whenever it has appeared feasible, an introduction to, a few selected areas that have been strongly influenced by the work of Erdõs. The author also hopes to have succeeded in facilitating a glimpse of the impact of these contributions by presenting them in their historical context.     

大学英语教学与素质教育

文章分析了大学英语教学的现状,认为目前的大学英语教学由于受应试倾向的影响,离真正意义上的素质教育还有很大距离。如果说,应试教育就如受人一鱼,仅供一饭之需,那么,素质教育才是授人以渔,令其受益终身。因此,作者认为,要想实施素质教育必须对大学英语的教学模式和考试模式加以改革。     

绝经后妇女活性氧与白细胞介素-6的相关性研究

目的探讨活性氧与白细胞介素-6(IL-6)的相关性,进一步阐明活性氧与骨质疏松症的内在联系。方法本研究选择符合纳入标准的绝经后妇女,测定其骨密度(BMD),根据骨密度分为骨质疏松组、骨量减少组及正常组各30例。检测各组研究对象的血清丙二醛(MDA)、超氧化物歧化酶(SOD)及IL-6,比较各组之间的MDA、SOD及IL-6的不同并分析MDA、SOD与IL-6的相关性。结果MDA与IL-6呈显著正相关(r=0.485,P<0.01),而SOD与IL-6呈显著负相关(r=-0.639,P<0.01);骨质疏松组的MDA较骨量减少组及正常组升高而SOD含量降低(P<0.01);骨质疏松组、骨量减少组的IL-6较正常组升高(P<0.01),骨质疏松组的IL-6亦较骨量减少组升高(P<0.05)。结论活性氧能促进IL-6的分泌,活性氧可能参与和促进了骨质疏松症的病理过程。     

Social protection assessment‐based national dialogue exercises: Cambodia,Indonesia, Thailand,Viet Nam

Between 2011 and 2013, the International Labour Organization, in collaboration with governments and several United Nations agencies working as part of the Social Protection Floor Initiative, conducted social protection assessment‐based national dialogue (ABND) exercises in Cambodia, Indonesia, Thailand and Viet Nam. The exercises were carried out in order to take stock of existing social protection realities in the respective countries, including social insurance, social assistance and anti‐poverty programmes. These inventories present a comprehensive picture of what elements of national social protection floors (SPFs) are in place, where “holes” in national floors exist, and provide a framework within which to propose recommendations for the further design and implementation of social protection provisions that guarantee at least the SPF to the entire population. This article describes the methodology for conducting ABND exercises, the situational analysis of the SPF in four countries, and the policy recommendations that were formulated for achieving basic health care and income security for children, the working‐age population and the elderly. The results of preliminary calculations of the cost of implementing proposed policy options are also outlined.     

复杂结构语言试卷信度的多元概化理论分析——以CET-6数据为例

通过对170名大学生在一套旧式大学英语六级考试客观题上的反应数据的分析,演示了如何用多元概化理论这一工具计算复杂结构语言试卷测试结果的信度系数.结果显示,对于这组学生,总分信度系数达0.921与达0.907,但各部分的差异很大,词汇和语法部分的信度系数最高,为0.802与0.782,听力部分的信度系数次之.为0.769与0.744,阅读理解部分的最低,为0.551与0.782,听力部分的信度系数次之,为0.769与0.744,阅读理解部分的最低,为0.551与0.503.进一步的分析揭示,在这套试卷的70道客观题中,与各自部分不融洽的题目有23个,其中听力部分6道,阅读部分10道,词汇语法部分7道.如果这些不融洽题目上的成绩不记入总成绩,总分和各部分成绩的信度系数都大幅度提高,其中总分信度系数提高到0.937,听力部分提高到0.831,阅读部分提高到0.773,词汇语法部分提高到0.859.在分析的基础上,对语言测试工作者提出了5条积极的建议.     

新型农村社区“1+6”模式构建探索——以陕西省L县B村为例

新型农村社区建设是统筹城乡发展的结合点,是城乡一体化的切入点,也是农村发展的增长点,并带有强烈的、鲜明的方向性意义,新型农村社区建设应具有新思路。为此,在解析新型农村社区主要特征、路径指引与四个双重矛盾的建设难点的基础上,以陕西省L县B村新型农村社区建设为例,提出全新的“1+6”模式。“1”即主体重造,“6”即围绕主体重造必然要求身份重构、产业重转、设施重布、资产重组、服务重塑、组织重建。通过“1+6”模式,将农村社区建设成为居民实行自我教育、自我服务、自我管理的具有自主性和能动性的新型社区。     

提高学校核心竞争力若干问题

学校核心竞争力具有无形的价值,从某种意义上说它本身没有使用价值,但它可以激发、加速有形及无形价值的形成和发展,为学校创造更高的显性价值。对高校核心竞争力进行了探讨,阐明了提高教学质量,学生培养、打造校园文化等高校核心竞争力的提升策略。     

End of double taxation: Is the policy better when announced?

This paper examines the effectiveness of the “end of double taxation” (on dividends) policy in stabilizing an economy. Both announced and unannounced policies are considered. A reduction in double taxation stimulates investment and improves welfare, but its impact on output is moderate and it has a negative effect on work hours. A temporary cut creates an investment boom but also generates an investment slump when the tax cut expires. Announcements of future tax cuts are found to have important effect on output dynamics. Agents respond to the tax policy even before it is implemented. If the tax cut is announced to be temporary, its impact on output is greatly reduced. Our study suggests that a temporary dividend tax cut is most effective in stabilizing a recession stricken economy when the policy change comes as “news” to the economy.     

浅谈数据库的独立性和安全性

本文介绍了本课题的开发背景,所要完成的功能和开发的过程,说明了系统设计的重点、设计思想、难点技术和解决方案.