高云览《小城春秋》的创作艺术

《小城春秋》的艺术经验就是：把真实生活作为文学素材,在广泛借鉴的基础上进行创造,主动寻求批评,容纳各种意见,慎重取舍,化史入诗达到艺术精品。高云览的创作实践启示我们：正确处理生活与艺术的关系、继承与创造的关系、表达与修改的关系、创作与批评的关系。     

After a Disaster: Lessons in Survey Methodology from Hurricane Katrina

In 2005, the National Science Foundation funded a number of projects to study the impact of Hurricane Katrina. The current article provides an overview of several research approaches used to conduct post-Katrina research. Each method had some advantages and disadvantages. The post-disaster context meant that experience from traditional survey methods often did not apply. Comparisons of advantages and disadvantages associated with each sampling method serve to inform future post-disaster research and illuminate the limits of classical research methods.     

Multiple Time Series Modeling and Extended Sample Cross-Correlations

This article provides an expository account of the multivariate autoregressive moving average models and proposes an extended sample cross-correlation approach for practical model identification. An iterative model building procedure for applying these models to real data is discussed and demonstrated by analyzing the 5-series U.S. Hog Data.     

随机过程的概念解析

通过分析Bernoulli试验对应的随机变量序列,给出随机过程的直观定义导致的矛盾.借助测度论的基本概念系统,解析随机过程的数学定义,给出随机过程样本函数与随机过程实现的概念一致性.     

The mean of linear signed rank statistics under alternatives

An expression is presented for the mean of a linear signed rank statistic for the one sample location model. Several examples are given to illustrate its application.     

On the improvement of one-sided S control charts

The most common charting procedure used for monitoring the variance of the distribution of a quality characteristic is the S control chart. As a Shewhart-type control chart, it is relatively insensitive in the quick detection of small and moderate shifts in process variance. The performance of the S chart can be improved by supplementing it with runs rules or by varying the sample size and the sampling interval. In this work, we introduce and study one-sided adaptive S control charts, supplemented or not with one powerful runs rule, for detecting increases or decreases in process variation. The properties of the proposed control schemes are obtained by using a Markov chain approach. Furthermore, a practical guidance for the choice of the most suitable control scheme is also provided.     

A note on nonlinear regression for the autoregressive moving average with non-hd errors

Estimation by nonlinear regression of the parameters for the stationary and invertible autoregressive moving average (ARMA) model with mixing or martingale difference errors is considered. Simple proofs of consistency and asymptotic normality for the nonlinear least squares estimator are given by exploiting results from nonlinear estimation theory and mixing and mixingale theory.     

Chronic Musculoskeletal Pain:

Two diseases, osteoporosis and osteoarthritis, are responsible for a majority of the chronic musculoskeletal pain that older women experience. Osteoporosis is the metabolic bone disease most common in older women and is responsible for fractures, kyphosis, and chronic pain. Osteoarthritis, the most commonly diagnosed musculoskeletal problem in older women, causes degeneration of the weight-bearing joints in the body, resulting in limited function and chronic pain. In this paper, these and other common disorders are briefly described and typical coping strategies used by older women in pain are reviewed. In addition, potential multidisciplinary treatment regimens are discussed.     

On Approximability of Boolean Formula Minimization

For a Boolean function given by a Boolean formula (or a binary circuit) S we discuss the problem of building a Boolean formula (binary circuit) of minimal size, which computes the function g equivalent to , or -equivalent to , i.e., . In this paper we prove that if P NP then this problem can not be approximated with a good approximation ratio by a polynomial time algorithm.     

小城镇发展与财政建设非良性互动问题研究

小城镇发展与财政建设是一种动态的、相互作用、相互制约的循环关系。目前我国东西部不发达地区普遍存在着小城镇财权与事权不对称、财政性资金管理混乱、财政收支结构不合理、财政负债严重等影响小城镇发展的典型问题,从根本上抑制着小城镇财政建设和可持续发展之间的良性互动作用的充分发挥。文章从小城镇经济发展水平、财政管理体制和行政管理体制三方面深入分析原因,指出小城镇发展与财政建设非良性互动的症结之所在,提出促进小城镇发展与财政建设良性互动的改革方案。