用Chat Anywhere工具架构局域网内的聊天室

以如何应用ChatAnywhere工具来实现建立一种架设内网聊天服务器的简单方法。     

取消农业税对农村牧区产生的影响

随着国家农业税全部免征政策的推行,农民税负大大减轻,但农民的其他隐性负担相应增加.同时,取消农业税对县乡财政收入产生影响,对农村经济也将产生深远影响.本文对巴彦淖尔市取消农业税后对农村牧区产生的影响进行了一些论述.     

农村义务教育财政体制发展评价指标体系的研究

农村义务教育财政体制是中国财政体制的重要组成部分,与农村社会经济发展和财政体制变化息息相关。建立一套完善的具有评价、监测、预测和决策功能的农村义务教育财政体制发展评价指标体系,对于义务教育事业的发展,国民整体素质的提高,“三农”问题的解决具有十分重要的意义。基于此,作者从农村义务教育财政体制研究现状出发,在论述其应遵循的评价原则的基础上,对其进行定性与定量的分析和描述,提出建立中国农村义务教育财政体制发展评价指标体系的基本构想。     

贫困地区低保动态管理探析

本文从贫困人口需求获得经济利益与主体管理部门动态性控制二者的矛盾入手,对贫困地区低保动态管理的内涵进行了探析,并将低保动态管理分为三个类型:一是对象平行动态,二是实行标准上下动态,三是需求类型变化动态,进而提出了解决低保动态管理问题的路径及措施.     

农民工流动的成本收益分析

在对农民工在农村和城市的生产生活成本和收益进行分析的基础上,构建了农民工流动的成本收益模型。分析了工资收入水平、流出地区农民收益差异、非经济成本、社会收益等影响农民工流动迁移决策的因素,及各因素之间的关系,探讨了农民工流动的机理。     

多元线性回归方程及其应用

通过建立多元线性回归的数学模型,利用最小二乘估计得到正规方程组并进行相关性检验,从而解决相关实际问题。     

Physiologically Based Liver Modeling and Risk Assessment

Because of the inherent complexity of biological systems, there is often a choice between a number of apparently equally applicable physiologically based models to describe uptake and metabolism processes in toxicology or risk assessment. These models may fit the particular data sets of interest equally well, but may give quite different parameter estimates or predictions under different (extrapolated) conditions. Such competing models can be discriminated by a number of methods, including potential refutation by means of strategic experiments, and their ability to suitably incorporate all relevant physiological processes. For illustration, three currently used models for steady-state hepatic elimination--the venous equilibration model, the parallel tube model, and the distributed sinusoidal perfusion model--are reviewed and compared with particular reference to their application in the area of risk assessment. The ability of each of the models to describe and incorporate such physiological processes as protein binding, precursor-metabolite relations and hepatic zones of elimination, capillary recruitment, capillary heterogeneity, and intrahepatic shunting is discussed. Differences between the models in hepatic parameter estimation, extrapolation to different conditions, and interspecies scaling are discussed, and criteria for choosing one model over the others are presented. In this case, the distributed model provides the most general framework for describing physiological processes taking place in the liver, and has so far not been experimentally refuted, as have the other two models. These simpler models may, however, provide useful bounds on parameter estimates and on extrapolations and risk assessments.     

三峡生态金融系统研究

本文提出了三峡生态金融系统的基本概念。三峡生态金融系统的基本模式是区域生态、经济、金融、科技等系统所构成的复合系统在结构、功能、行为上既遵循生态规律 ,又遵循经济规律的金融发展模式。三峡生态金融系统的主要任务是服从和服务于三峡生态经济区建设 ,通过金融政策导向 ,运用多种金融工具 ,引导和推进三峡库区沿着可持续发展方向 ,实现从工业化欠发达区域向生态化区域的跨越式发展。通过构建区域性金融中心等途径和方法 ,实现三峡库区生态经济区的发展目标。为此提出了增强金融比较优势、提高信贷资产质量、应对WTO挑战、构建生态金融安全区、综合开发利用政策资源、建立经济金融协调机制和重视民间投资等政策建议     

缓解我国就业压力的重要途径--再谈农村工业化

工业化包括农村工业化,片面的工业化和单向的农村———城市人口流动模式都不能解决农村剩余劳动力就业问题。为充分就业找到新途径,关键在于对传统农业的改造和加速农村工业化发展。     

A Comparison of Partially Adaptive and Reweighted Least Squares Estimation

The small sample performance of least median of squares, reweighted least squares, least squares, least absolute deviations, and three partially adaptive estimators are compared using Monte Carlo simulations. Two data problems are addressed in the paper: (1) data generated from non-normal error distributions and (2) contaminated data. Breakdown plots are used to investigate the sensitivity of partially adaptive estimators to data contamination relative to RLS. One partially adaptive estimator performs especially well when the errors are skewed, while another partially adaptive estimator and RLS perform particularly well when the errors are extremely leptokur-totic. In comparison with RLS, partially adaptive estimators are only moderately effective in resisting data contamination; however, they outperform least squares and least absolute deviation estimators.