关于完善我国仲裁法律体系的若干思考

我国民事诉讼法和合同法是仲裁法的重要渊源 ,完善仲裁法律体系 ,不仅需要对仲裁法本身进行修改和完善 ,而且还应对民事诉讼法和合同法进行修改和完善     

Sampling Strategies for Toxic Air Contaminants

Annual concentrations of toxic air contaminants are of primary concern from the perspective of chronic human exposure assessment and risk analysis. Despite recent advances in air quality monitoring technology, resource and technical constraints often impose limitations on the availability of a sufficient number of ambient concentration measurements for performing environmental risk analysis. Therefore, sample size limitations, representativeness of data, and uncertainties in the estimated annual mean concentration must be examined before performing quantitative risk analysis. In this paper, we discuss several factors that need to be considered in designing field-sampling programs for toxic air contaminants and in verifying compliance with environmental regulations. Specifically, we examine the behavior of SO2, TSP, and CO data as surrogates for toxic air contaminants and as examples of point source, area source, and line source-dominated pollutants, respectively, from the standpoint of sampling design. We demonstrate the use of bootstrap resampling method and normal theory in estimating the annual mean concentration and its 95% confidence bounds from limited sampling data, and illustrate the application of operating characteristic (OC) curves to determine optimum sample size and other sampling strategies. We also outline a statistical procedure, based on a one-sided t-test, that utilizes the sampled concentration data for evaluating whether a sampling site is compliance with relevant ambient guideline concentrations for toxic air contaminants.     

Local polynomial estimation of Poisson intensities in the presence of reporting delays

Summary.  The system for monitoring suicides in Hong Kong has considerable delays in reporting as the cause of death needs to be determined by a coroner's investigation. However, timely estimates of suicide rates are desirable to assist in the formulation of public health policies. This motivated us to develop a non-parametric procedure to estimate the intensity function of a Poisson process in the presence of reporting delays. We give closed form estimators of the Poisson intensity and the delay distribution, conduct simulation studies to evaluate the method proposed and derive their asymptotic properties. The method proposed is applied to estimate the intensity of suicide in Hong Kong.     

Sampling Returns for Realized Variance Calculations: Tick Time or Transaction Time?

This article introduces a new model for transaction prices in the presence of market microstructure noise in order to study the properties of the price process on two different time scales, namely, transaction time where prices are sampled with every transaction and tick time where prices are sampled with every price change. Both sampling schemes have been used in the literature on realized variance, but a formal investigation into their properties has been lacking. Our empirical and theoretical results indicate that the return dynamics in transaction time are very different from those in tick time and the choice of sampling scheme can therefore have an important impact on the properties of realized variance. For RV we find that tick time sampling is superior to transaction time sampling in terms of mean-squared-error, especially when the level of noise, number of ticks, or the arrival frequency of efficient price moves is low. Importantly, we show that while the microstructure noise may appear close to IID in transaction time, in tick time it is highly dependent. As a result, bias correction procedures that rely on the noise being independent, can fail in tick time and are better implemented in transaction time.     

Optimal sampling for repeated binary measurements

The authors consider the optimal design of sampling schedules for binary sequence data. They propose an approach which allows a variety of goals to be reflected in the utility function by including deterministic sampling cost, a term related to prediction, and if relevant, a term related to learning about a treatment effect To this end, they use a nonparametric probability model relying on a minimal number of assumptions. They show how their assumption of partial exchangeability for the binary sequence of data allows the sampling distribution to be written as a mixture of homogeneous Markov chains of order k. The implementation follows the approach of Quintana & Müller (2004), which uses a Dirichlet process prior for the mixture.     

从部门本位回归到基本理性——对检察机关职权配置的思考

目前,我国法学界对检察机关职权配置问题存在着激烈的争论。争论的主要问题有三个。其中,检察机关是否有侦查权是个伪问题,其本质是检察机关行使侦查权时由谁来监督;检察官不是“中立及超然”的司法人员,不应当有对强制措施的批准权;检察官不应当以居高临下的“法律监督者”的身份监督审判程序,而是应当通过程序动议权和上诉权监督审判程序。目前主张维持检察机关职权现状的学者,有严重的部门本位主义,检察权改革应当摒弃部门本位主义。     

电弧炉电极系统双模控制策略研究及应用

针对交流电弧炉电极控制系统具有非线性时变、多变量、强耦合及存在随机干扰的特点,采用基于最近邻聚类方法的径向基函数(RBF)神经网络快速学习算法,通过实时在线辨识,建立电弧炉电极系统的精确逆模型并用于控制,实现了将具有强耦合特性的多变量输入/输出(MIMO)系统解耦成单个独立的伪线性对象,并提出一种基于RBF神经网络逆控制与比例微分(P/D)控制相结合的双模控制策略。应用结果证实了该控制策略具有快速适应对象和过程变化的能力及较强的鲁棒性。     

中国民事诉讼费用负担制度的法经济学思考

当事人之间诉讼费用负担和国家对审判成本负担的划分影响着当事人诉讼行为的选择。目前中国民事诉讼费用负担制度存在着制度供给不足、缺少救济措施、权利分布不均衡和国家承担公共成本太低等问题,因此健全中国民事诉讼费用负担制度,制定可行的救济措施,并对民事诉讼费用负担判决实行监督,实施法院独立预算等措施,才是解决民事诉讼费用负担问题的根本途径。     

Nonresponse weighting adjustment using estimated response probability

To reduce nonresponse bias in sample surveys, a method of nonresponse weighting adjustment is often used which consists of multiplying the sampling weight of the respondent by the inverse of the estimated response probability. The authors examine the asymptotic properties of this estimator. They prove that it is generally more efficient than an estimator which uses the true response probability, provided that the parameters which govern this probability are estimated by maximum likelihood. The authors discuss variance estimation methods that account for the effect of using the estimated response probability; they compare their performances in a small simulation study. They also discuss extensions to the regression estimator.     

浅析高校学生管理中的正当程序问题

高校在学生管理过程中侵害学生权益的事件时有发生,诱发高校与学生矛盾的一个主要因素是高校在学生管理工作中的程序瑕疵。在学校的管理工作中坚持正当程序原则,是使学校的管理行为公开、公正、公平的基本保证。在高校学生管理过程中适用正当程序是必然趋势。