贯彻“三个代表“重要思想,切实加强和改进在校大学生党员的教育工作

党的十六报告提出:加强和改进党的建设,共产党员必须发挥先锋模范作用,牢固树立共产主义远大理想和中国特色社会主义坚定信念,脚踏实地地为实现党在现阶段的基本纲领而奋斗。在全党开展以实践“三个代表”重要思想为主要内容的保持共产党员先进性教育活动。高校是孵化未来先进生产力的基地,造就最广大人民利益忠实代表的基地,创造、传播先进思想文化的阵地,贯彻落实十六大学生党员的教育工作,把在校大学生党员培育成为胸怀共产主义远大志向,思想上、政治上符合建设有中国特色社会主义需要的马克思主义者和优秀的高级专门人才。     

Analysis of a continuous-time proportional hazard model using discrete duration data

Many economic duration variables are often available only up to intervals, and not up to exact points. However, continuous time duration models are conceptually superior to discrete ones. Hence, in duration analyses, one faces a situation with discrete data and a continuous model. This paper discusses (i) the asymptotic bias of a conventional approximation procedure in which a discrete duration is treated as an exact observation; and (ii) the efficiency of a correct maximum likelihood estimator which appropriately accounts for the discrete nature of the data.     

高校教职工思想政治工作专业化：一个必须突破的理论与实践双重背逆问题

高校教职工思想政治工作的"非专业化"存在,既影响了此项工作的科学性,也使从业者的角色定位十分为难.高校教职工思想政治工作的专业化首先是思想政治工作本身在正确导向和体制下的合理存在,然后是从业者主体意识的专业化和综合素质的全面提高,并在实践中强化生命力.     

论高等教育发展的适切性--兼论高等教育对农村的适切性

适切性是高等教育发展的永恒追求。高等教育发展是对社会和个人教育需求的适应、满足以及适切性增强的过程,高等教育发展应更加切合农村社会和农村个人高等教育需求,引入农村“需求导向”,以多样化、多层次、多形式的多元高等教育结构,通过以高校为主体的“自适应”,增加高等教育在农村的有效供给。     

为国家教育妇女：加纳的教育改革与性别问题

1986改革中,加纳政府根据结构调整方案(SAP)和2020计划,关注教育中存在性别的不平等现象,努力解决女生在科学、数学和技术课程(SMT)的学业成绩、入学率等问题,并建立女子教育联合会.问题的解决要依靠真正普及免费的义务教育以及将妇女教育延伸到职业和高等教育机构.     

Horwitz's rule, transforming both sides and the design of experiments for mechanistic models

Summary. The paper develops methods for the design of experiments for mechanistic models when the response must be transformed to achieve symmetry and constant variance. The power transformation that is used is partially justified by a rule in analytical chemistry. Because of the nature of the relationship between the response and the mechanistic model, it is necessary to transform both sides of the model. Expressions are given for the parameter sensitivities in the transformed model and examples are given of optimum designs, not only for single-response models, but also for experiments in which multivariate responses are measured and for experiments in which the model is defined by a set of differential equations which cannot be solved analytically. The extension to designs for checking models is discussed.     

Detection and correction of artificial shifts in climate series

Summary.  Many long instrumental climate records are available and might provide useful information in climate research. These series are usually affected by artificial shifts, due to changes in the conditions of measurement and various kinds of spurious data. A comparison with surrounding weather-stations by means of a suitable two-factor model allows us to check the reliability of the series. An adapted penalized log-likelihood procedure is used to detect an unknown number of breaks and outliers. An example concerning temperature series from France confirms that a systematic comparison of the series together is valuable and allows us to correct the data even when no reliable series can be taken as a reference.     

Direct and Indirect Causal Effects via Potential Outcomes*

Abstract. The use of the concept of ‘direct’ versus ‘indirect’ causal effects is common, not only in statistics but also in many areas of social and economic sciences. The related terms of ‘biomarkers’ and ‘surrogates’ are common in pharmacological and biomedical sciences. Sometimes this concept is represented by graphical displays of various kinds. The view here is that there is a great deal of imprecise discussion surrounding this topic and, moreover, that the most straightforward way to clarify the situation is by using potential outcomes to define causal effects. In particular, I suggest that the use of principal stratification is key to understanding the meaning of direct and indirect causal effects. A current study of anthrax vaccine will be used to illustrate ideas.     

多源模型的新进展

本文总结了高能核—核碰撞的多源模型自1987年提出到1990年以来的主要进展,着重介绍多源模型的基本物理思想及其在两种不同方案下的发展动态.通过与最新实验数据比较,说明多源模型能够成功地解释高能重离子碰撞的整体性质.     

金融期权定价模型与金融风险管理

金融期货是一种具有独特功能的非常重要的衍生金融工具 ,对规避金融风险有重要意义 ,其作为一种金融资产表现为一种特定的权利。B -S期权模型开创性地表达了这种期权定价理论 ,二项式模型则将各种金融期权定价模型推向简化和实用化。