A modified subset selection formulation with special reference to one-way and two-way layout experiments

The usual formulation of subset selection due to Gupta (1956) requires a minimum guaranteed probability of a correct selection. The modified formulation of the present paper includes an additional requirement that the expected number of the nonbest populations be bounded above by a specified constant when the best and the next best populations are ‘sufficiently’ apart. A class of procedures is defined and the determination of the minimum sample size required is discussed. The specific problems discussed for normal populations include selection in terms of means and variances, and selection in terms of treatment effects in a two-way layout.     

佛山市外来女工的受教育状况及其教育培训体系建构

佛山市外来女工的低水平教育现状,使她们在当前和未来相当长的一段时间内,面临着技术性失业风险加剧、城市化进程低缓、社会资本低效等问题,致使其生存状况长期得不到改善,影响着她们自身的生存和发展,并直接影响着佛山市产业结构调整与升级的进程,因此,建立完善的外来女工教育培训的支撑体、内容体系、机构体系及评价体系,就成为解决问题的首选。     

A class of weighted normal distributions and its variants useful for inequality constrained analysis

This article develops a class of the weighted normal distributions for which the probability density function has the form of a product of a normal density and a weight function. The class constitutes marginal distributions obtained from various kinds of doubly truncated bivariate normal distributions. This class of distributions strictly includes the normal, skew–normal and two-piece skew–normal and is useful for selection modelling and inequality constrained normal mean analysis. Some distributional properties and Bayesian perspectives of the class are given. Probabilistic representation of the distributions is also given. The representation is shown to be straightforward to specify distribution and to implement computation, with output readily adapted for required analysis. Necessary theories and illustrative examples are provided.     

Social ties, task-related communication and first job performance of young engineers

This study investigated the relationships among social ties, task-related communication, and first industrial job performance of a group of young engineers by utilizing a cooperative (coop) engineering program as a natural study. The coop arrangement allowed the researcher to examine the work behavior of these young engineers with similar academic training who were working on comparable work assignments in the same set of organizations.The study found that the job performance of the coop engineers was related to the pattern of work- related communication but not the total number of contacts. Specifically, high performance new engineers were integrated more broadly into the interpersonal communication networks than low performance new engineers. Moreover, high performance new engineers exhibited communication patterns similar to those of high performance veteran engineers working on similar types of technical work. Social ties with the company staff was found to be related positively with job performance, but social ties with other coop engineers was found to be related negatively with job performance, a result which challenges an implicit assumption often made by researchers and managers about the organizational socialization of newcomers. Overall, this study provides an integrative framework for relating social ties and communication as key factors for understanding the job performance of young engineers and presents a methodology for assessing their organizational assimilation.     

激励企业技术创新的两种管制方式

本文旨在探讨激励垄断企业技术创新的两种管制方式——价格上限管制和最优管制机制。首先分别建立了它们的管制模型,得出了激励企业技术创新的具体的管制机制;进一步地,比较了在这两种管制方式下企业创新的内在激励,以及创新费用的增加对消费者剩余的影响;并分析了当激励企业创新问题引入时,两种管制方式相对优势的改变。     

中学课外科技活动的存在问题及对策

本文较为详细地分析我们在１９９８ 年上半年进行的“广州 市中学生课外科技活动问卷调查”的数据, 指出广州市中学生课外科技 活动存在着师资力量不足、考核制度不完善等问题, 文章最后提出了解 决上述问题的意见和看法     

信息社会管理者合理决策行为研究

决策离不开信息的支持.进入信息社会,先进的信息技术为管理者决策提供了信息收集和处理的技术手段,使得决策方法更加科学化,同时,决策行为的科学化同样应予以足够的重视.文章探讨了在当今信息社会环境中,管理者的合理决策行为模式.     

发达国家高等职业技术教育与经济竞争力研究

高等职业技术教育是经济发展、科技进步的产物。职业教育的层次随着经济发展的需要不断提高。高等职业技术教育同经济的关系最为密切和直接,是培养应用型和技能型人才的主要手段。许多国家的经验证明,技术型人才的数量、质量和结构在很大程度上决定国家的经济竞争能力。文章分析了发达国家高等职业技术教育对经济发展的促进作用,论述了高等职业技术教育对经济竞争力的功效。     

“以庄解庄”方法论浅析

正确理解<庄子>意蕴的关键在于解读方法的选择.历代读庄皆有不同的方法."以庄解庄"突破传统"以它平它"的理论,反拨将<庄子>现代化,消解将<庄子>原点化和读者化."以庄解庄"方法论将开显庄子研究的新气象.     

《现代汉语词典》科技术语义项漏略商榷

《现代汉语词典》(2002年增补本)的科技术语存在着义项漏略问题,有的是专科义项漏略,如"干涉"、"权数";有的是语文义项漏略,如"毒瘤"、"腐蚀剂"、"催化剂"。