西部大开发中的语言教育问题

西部大开发 ,人才是关键 ,人才的基础在教育 ,教育的切入点在语言。语言教育是决定人口素质高低的重要条件之一。西部地区是多民族地区 ,在大开发中 ,要以“多语一通” (尊重多种语言的繁荣发展 ,促进全国通用语言的推行 )、“三语并重” (同时注重民族语言、汉语、外语 )、“汉语牵头” (以汉语的教育带动其他语言的教育 )为纲 ,开创语言教育的新局面。     

Model Selection and Estimation with Quantal‐Response Data in Benchmark Risk Assessment

This article describes several approaches for estimating the benchmark dose (BMD) in a risk assessment study with quantal dose‐response data and when there are competing model classes for the dose‐response function. Strategies involving a two‐step approach, a model‐averaging approach, a focused‐inference approach, and a nonparametric approach based on a PAVA‐based estimator of the dose‐response function are described and compared. Attention is raised to the perils involved in data “double‐dipping” and the need to adjust for the model‐selection stage in the estimation procedure. Simulation results are presented comparing the performance of five model selectors and eight BMD estimators. An illustration using a real quantal‐response data set from a carcinogenecity study is provided.     

裂纹方向压应力对混凝土断裂过程区尺度的影响

针对平行于裂纹方向作用有压应力的无限大板I型中心裂纹问题，基于Muskhelishvil应力函数得出的裂纹尖端最大拉应力和最大压应力确定了修正的莫尔强度理论的适用条件；推导了裂纹尖端微裂区临界值的解析表达式；采用幂函数模型描述的拉应变软化模型，确定了断裂过程区临界值。结果表明应用修正的莫尔强度理论评估混凝土I型裂纹尖端微裂区和断裂过程区尺度是合理的；微裂区和断裂过程区尺度随平行于裂纹方向压应力作用的增加而增加。     

基于宁、滁、扬联动发展的滁州市旅游业提升对策研究

区域旅游联动协作发展成为旅游业发展的趋势之一。文章从区域旅游联动发展的角度来探讨如何促进滁州与南京都市圈内的南京和扬州的旅游合作。在对滁州、南京和扬州开展旅游合作的现实条件分析的基础上,就滁州加强与南京、扬州的旅游合作提出了相关的对策和建议。     

Bayesian Analysis of DSGE Models—Rejoinder

We would like to thank all the discussants for their stimulating comments. While our article to a large extent reviews current practice of Bayesian analysis of Dynamic Stochastic General Equilibrium (DSGE) models the discussants provide many ideas to improve upon the current practice, thereby outlining a research agenda for the years to come. In our rejoinder we will briefly revisit some of the issues that were raised.     

黄铁矿处理含Cr（Ⅵ）放心水体系的研究

本文建立了黄铁矿处理含Cr(Ⅵ）废水的反应体系，所处理的Cr(Ⅵ）达标排放后，进一步测定了排放中全铬（Cr(Ⅵ） Cr（Ⅲ））和有关重金属元素的逍度，避免了二次污染，与此同时，还探讨了Cr(Ⅲ）的存在形式，XPS测试结果表明，Cr(Ⅲ）很可能以Cr2S3物相存在，该方法具有较高的经济价值和环境优势。     

在构建和谐社会中强化企业社会责任

在构建社会主义和谐社会的今天,企业必须更加积极主动地承担起各种应尽的社会责任。这些社会责任包括服务社会发展、尊重员工权益、维护公平正义、保护生态环境、支持社会公益等等。政府应和各种社会力量一起,通过加强宣传教育、健全法律体系、创新奖惩机制、加大监督力度等多种途径,为推进企业履行社会责任创造良好环境并提供强劲动力。     

Computer-Aided Teaching of Probabilistic Modeling for Biological Phenomena

College students majoring in science and engineering need to learn how to model key features of the driving mechanisms of natural, scientific, and engineering phenomena. A rigorous treatment of these topics requires a thorough understanding of advanced mathematical concepts and probability theory. However, we believe that carefully designed computer simulation software offers a means of conveying fundamental ideas of probabilistic modeling, while minimizing the need for underlying mathematical analyses. Based on this premise we have initiated the development of a software system that will be incorporated into a novel, introductory course in probabilistic modeling for undergraduate students in the biological and environmental sciences. In this paper we describe the preliminary version of our system that implements simulation, real-time animation, and calculations of dynamic statistical summaries for several prototypical stochastic models for a variety of biological systems.     

旧学与新制:清末提学使东游见闻与认知

如何把中国固有教育融入学堂系统,是晚清教育改制进程中的难题.1906年提学使东游事件,清廷的本意是提升出身科甲的提学使对学堂教育的见识,而提学使则从日本明治改革的经验与教训出发,以新教育体制的执行者身份将这一难题再次提出.迄今为止."旧学"、"新知"与"新制"如何融通,仍然考验着国人的智慧.     

长沙市民世博旅游行为初探

世界博览会是一种重要的全球性展会,研究城市居民的世博旅游行为,有助于更好地开发会展旅游市场。通过问卷调查,分析了长沙市民对上海世博会的出游行为。结果显示,长沙市民有着较强烈进行世博旅游的意愿,没有能够实现出游意愿的主要原因是时间和经济条件的限制。长沙市的世博旅游者去上海的交通工具主要为动车和飞机,出游方式以自助为主,住宿方式表现为多样化,对世博的服务、卫生、增长知识、园内参观以及整个世博旅游都有着较高的评价。同时,在世博结束后,长沙市民对保留下来的中国馆和湖南馆仍然有着强烈的参观意愿。