互联网行为管理系统(BCS)中精简TCP/IP的实现

文章介绍了对防火墙通用TCP/IP实现的修改,经修改过的TCP/IP实现将在代码量、协议的完备性、内存的开销、总体性能方面得到提高。     

建立健全保持党员先进性长效机制的思考

建立健全党员长期受教育，永葆先进性的长效机制，是巩固和扩大先进性教育成果的重要途径。建立健全长效机制，必须始终围绕党员的思想、工作和生活实际，以改革创新的精神，对工作中现有机制进行不断完善，确保长效机制本身的长效性和先进性。     

中国经济长期发展路径选择:切实转变经济增长方式,实现可持续发展

我国目前的粗放型为主的经济增长方式导致资源的过度消耗和环境的渐趋恶化,这已经严重威胁到中国经济的可持续发展.转变经济增长方式不仅是"十一五"期间的重要任务,更是中国经济长期发展的必然路径选择.中国经济要实现长期稳定、健康、可持续发展,必须切实转变经济增长方式.     

美国对华贸易技术壁垒的政治经济学分析

技术贸易壁垒已成为中美贸易摩擦的最主要原因之一。本文拓展了格罗斯曼和海普曼的关税模型．对美国对华贸易技术壁垒进行政治经济学分析，指出贸易技术壁垒是美国政府与相关利益集团博弈的结果，其存在具有必然性和长期性，进而提出对我国政府、企业、行业协会的政策建议。     

新时期高校先进性教育长效机制建设浅议

高等学校是培养建设有中国特色社会主义事业接班人的重要阵地。如何教育、培养学生党员践行“三个代表”重要思想,充分发挥先锋模范作用,增强党的战斗力、凝聚力和吸引力,是高校学生党建工作的重要组成部分和基础环节。探索加强学生党员的思想政治教育、组织机制、制度建设、激励机制的建设,是新时期高校党建工作的一项重要课题。     

Testing of unit roots and other fractionally integrated hypotheses in the presence of structural breaks

Tests of unit roots and other nonstationary hypotheses that were proposed by Robinson (1994) are applied in this article to the Nelson and Plosser's (1982) series. The tests can be expressed in a way allowing for structural breaks under both the null and the alternative hypotheses. When applying the tests to the same dataset as in Perron (1989), we observe that our results might be consistent with those in Perron (1989) when testing the nulls of trend-stationarity or a unit-root. However, we also observe that fractionally integrated hypotheses may be plausible alternatives in the context of structural breaks at a known period of time. Final version received: August 2000/Final version accepted: August 2001 RID="*" ID="*"  The author gratefully acknowledges the financial support from the European TMR grant No. ERBFMRX-CT-98-0213. Comments of two anonymous referees are also acknowledged.     

Long memory in volatilities of German stock returns

We show that there is strong evidence of long-range dependence in the volatilities of several German stock returns. This will be done by applying a method using the difference of the classical log-periodogram regression estimator for the memory parameter and of the tapered periodogram based estimator. Both estimators give similar values for the memory parameter for each series and this indicates long memory. To support our findings we apply also a methodology using the sample variance and a wavelet based estimator to the data. Also these two methods show clear evidence of long-range dependence in the volatilities of German stock returns.First version received: December 2001/Final version received: March 2003The computational assistance of Eleni Mitropoulou and Björn Stollenwerck as well as the helpful comments of two unknown referees are gratefully acknowledged. Research supported by Deutsche Forschungsgemeinschaft under SFB 475. Stock returns were obtained from Deutsche Finanzdatenbank (DFDB), Karlsruhe.     

FDI对湖南省的经济增长效应及其地域梯度差异的实证分析

通过回归分析法,实证分析外商直接投资(FDI)对湖南省经济增长的影响,并采用Q型聚类层次法进一步探讨FDI对湖南各地区经济增长影响的不平衡性。结果表明:FDI对湖南省经济促进效应显著,且主要是靠短期需求拉动经济增长,FDI的滞后期为3年,滞后的FDI对经济的贡献小于当年对GDP的贡献。FDI对省内各地区经济的贡献表现出相当大的差异性,且这种差距呈扩大态势,值得引起高度警惕。     

浅析长拳类套路演练中的节奏

掌握节奏是套路演练中的关键环节,本文从长拳类套路演练中节奏的涵义、节奏在套路演练中所体现的价值以及演练中如何更好地掌握节奏这三个方面出发,在查找相关文献资料、总结自身教学经验的基础上,运用总结、归纳等方法进行了分析论述.     

承包型CM模式与跨流域调水工程建设管理

在分析跨流域长距离调水工程特点的基础上,提出对大型跨流域调水工程采用承包型CM模式并分析其应用优点和条件。