环境危机意识的培养与教育

分析了全球面临的环境危机及我国的资源环境现状与未来社会经济发展的要求之间的矛盾，论述了加强我国民众环境危机意识教育的作用和意义以及实施环境危机意识教育的措施和手段。     

钢筋混凝土中离子渗透扩散的研究

钢筋混凝土中离子的渗透扩散是钢筋混凝土的锈蚀的重要过程，这里对温度场和浓度场进行了相似分析，介绍了如何用温度场来模拟渗透过程中的浓度场的变化过程，为研究钢筋混凝土的耐久性提供了1种切实可行的方法。     

末态粒子相空间二维自仿射分形

在二维相空间对高能强子 -强子碰撞末态粒子的阶乘矩进行了研究 ,验证了高能粒子碰撞末态粒子相空间二维自仿射分形的性质 ,测定了其分形指数     

对房地产开发主导下的旧城改造的思考

当前，中国城市化处于快速发展时期，受土地资源供给的制约，城市大发展与大转型并存：一方面是新城建设紧锣密鼓，另一方面是旧城改造，包括棚户区、城中村改造如火如茶。当前，房地产开发已成为旧城改造的主要形式，在利益驱动下，     

P-value adjustment for multiple binary endpoints

The p-value-based adjustment of individual endpoints and the global test for an overall inference are the two general approaches for the analysis of multiple endpoints. Statistical procedures developed for testing multivariate outcomes often assume that the multivariate endpoints are either independent or normally distributed. This paper presents a general approach for the analysis of multivariate binary data under the framework of generalized linear models. The generalized estimating equations (GEE) approach is applied to estimate the correlation matrix of the test statistics using the identity and exchangeable working correlation matrices with the model-based as well as robust estimators. The objectives of the approaches are the adjustment of p-values of individual endpoints to identify the affected endpoints as well as the global test of an overall effect. A Monte Carlo simulation was conducted to evaluate the overall family wise error (FWE) rates of the single-step down p-value adjustment approach from two adjustment methods to three global test statistics. The p-value adjustment approach seems to control the FWE better than the global approach Applications of the proposed methods are illustrated by analyzing a carcinogenicity experiment designed to study the dose response trend for 10 tumor sites, and a developmental toxicity experiment with three malformation types: external, visceral, and skeletal.     

浅议能人机制

能人就是在市场经济竞争中能够搏风击浪,取得优胜,为社会主义的物质文明和精神文明建设做出较大贡献的人.我们应当借鉴深圳经验,加大对能人的发现、培养、保护和使用力度,建立起能人辈出的机制.     

对称保正型h-变换的几个性质

通过对称保正型（ε，D（ε））h-变换的暂留性、常返性和不可约性的讨论，证明了对称保正型的暂留性、常返性和不可约性在h-变换下是不变的，由此得到（ε，D（ε））h-结合的m-胎紧m-特殊标准马氏过程的相应性质。     

大数幂剩余的二进制冗余数Montgomery算法

介绍了大数幂剩余的Montgomery算法,提出了基于二进制冗余数的大数幂剩余Montgomery算法模型。理论分析表明,采用二进制冗余数可减少乘法的进位传播,同时使算法的迭代步数减少17.2%。进一步提高了大数幂剩余的运算速度。     

CET阅读理解题:问题与方法(二)

本文通过对CET阅读理解考题、提问(问题)以及原文和提问中一些关键词语之间的内含百分比进行分析和对比,探索如何准确解题的方法与捷径。     

Welfare Rigidity,the Composition of Public Expenditure and the Welfare Trap

Welfare expenditure is characterized by rigidity, i.e., it goes up easily but is very hard to get down. We introduced welfare rigidity into an endogenous growth model that includes government expenditure to analyze the impact of welfare rigidity and the composition of public expenditure on economic growth and family utility. Our findings show that welfare spending and economic growth have a non-monotonic relationship that is negative or inverted U-shaped depending on cross-country differences. Higher welfare rigidity reduces long-term economic growth and household utility. According to the estimated optimal size of welfare expenditure, China, as a developing country with a large population, has to do all it can to improve people’s livelihood but must at the same time weigh its limited resources so that its welfare expenditure does not fall into a “welfare trap.”