Matrix Euclidean norm Wielandt inequalities and their applications to statistics

In this paper we shall establish a new matrix inequality which will fill the gap that there has not been any matrix Euclidean norm version of the Wielandt inequality in the literature yet. This inequality can be used to present an upper bound of a new measure of association which plays a very important role in statistics, especially in multivariate analysis. A new alternative based on Euclidean norm for relative gain of the covariance adjusted estimator of parameters is provided.     

苏轼与王安石在《尚书》诠释上的分歧——以他们的哲学思想为视角

在对《尚书》的诠释中,苏轼从应物合乎情理性所要遵循的标.准情本论出发,用从众的观点批判了王安石从智性出发而以为精英分子可以违众自用的思想。王安石的《尚书新义》过分渲染了刑罚的作用,而苏轼认为治国决不可以过度依赖刑罚甚至重刑,因而对《尚书新义》中有关这些方面的诠释提出了严厉的批判。这种批判是以其哲学思想为基础的,其中的分歧是二人的哲学思想在经典诠释中的必然反映。     

平面运动刚体惯性力系简化中心的选择

讨论了平面运动刚体上惯性力系的简化问题；给出了选任意点为惯性力系简化中心的简化结果，和选速度瞬心和加速度瞬心为简化中心的简化结果。对选质心或任意点作为简化中心作了较全面的比较。     

论旋转式投掷铅球技术的优越性

本文从动力学的角度对旋转式投掷铅球技术进行了分析 ,认为该技术具有可增大作用力时间使铅球出手速度更快 ,双腿支撑效果更好 ,最后用力时间更短的优势     

Supply Chain Models with Mutual Commitments and Implications for Social Responsibility

In today's increasingly globalized environment, more and more companies recognize the mutual dependence of supply chain partners in value creation. When making business decisions, they take into consideration their partners’ bottom line profitability, especially in emerging markets. The question is, is this kind of practice sustainable? This study makes an attempt to formalize this issue by examining a stylized two‐party supply chain model in which each player maximizes its own profit while making a certain commitment to its partner. We compare five different games between the two supply‐chain partners, which reflect different power positions of the players and different levels of commitment. We identify conditions under which both players are better off with mutual commitments than without, a situation we call win–win. We show that win–win can be achieved if and only if the mutual commitments are comparable. Thus, the recognition of mutual dependence of the supply chain members needs to be translated into reciprocal concerns. In addition, different players’ commitments play different roles but together they have a similar effect as a profit sharing contract. Finally, we discuss the implications of our findings in the context of socially responsible operations. In particular, our analyses show that it is possible to care about the supply chain partners’ bottom line without sacrificing one's own profitability, and our models can be used as a tool to determine the commitment levels by evaluating the predicted outcome.     

On Large Deviations of Sums of Independent Random Variables

Extensions of some limit theorems are proved for tail probabilities of sums of independent identically distributed random variables satisfying the one-sided or two-sided Cramér's condition. The large deviation x-region under consideration is broader than in the classical Cramér's theorem, and the estimate of the remainder is uniform with respect to x. The corresponding asymptotic expansion with arbitrarily many summands is also obtained.     

历史虚无主义对青少年的危害及对策研究

历史虚无主义以反权威、反中心、反主流、反传统的非理性方式在青少年群体中大行其道、肆意泛滥而产生了严重的危害。充分做好青少年的意识形态工作,透过现象认识本质,揭露隐藏在历史虚无主义背后的真正意图,为青少年创建一个积极、健康、向上的学习和生活环境显得十分重要。     

The indirect method for stochastic logistic growth models

We developed the indirect method for stochastic logistic growth models involving both birth and death rates in the drift and diffusion coefficients, and not only propose two indirect estimators, but also construct a likelihood ratio-type indirect statistic for testing hypotheses concerning parameters. Simulations show that the proposed two indirect estimators can correct the discretization bias, and the proposed indirect test possesses very good estimated power and size.     

中国区域间产业转移的定量测度与特征研究——基于一般均衡理论的视角

区域间产业转移的定量测度是进一步深入研究产业转移理论问题和政策问题的技术瓶颈。依据一般均衡理论,构建区域间产业转移定量测度方法和计算模型,通过准确可靠的渠道,大范围地收集我国区域间产业转移的相关历史数据,定量测度我国区域间近十年产业转移的相对数据,分析我国区域间产业转移的基本特征。在此基础上,进一步探讨我国产业转移的基本趋势。     

我国的民族优惠政策应往何处去?

我国的民族优惠政策坚持以马克思主义民族观为指导,以追求各民族“事实上的平等”为制定理念和最终目标.然而,我国目前客观存在的“汉—少”二元结构、部分汉族成员对优惠政策造成“逆向歧视”的不满以及部分少数民族成员对优惠政策“污名化”效应的抵触等问题充分说明对我国民族优惠政策进行调整是非常必要的.为此,可以从以下三方面对民族优惠政策进行微调:以构建发展型民族福利体系为目标;以对“过程平等”的强调抵消“机会不平等”的消极作用;“两手”并进,共促发展.