Addition of runs to an s-level supersaturated design

The purpose of the present work is to extend the work of Gupta et al. (2010) to s  -level column balanced supersaturated designs. Addition of runs to an existing E(χ²)-optimal$E({\chi }^2)\mathrm{-}\mathrm{optimal}$ supersaturated design and to study the optimality of the resulting design is an important issue. This paper considers the study of the optimality of the resulting design. A lower bound to E(χ²)$E({\chi }^2)$ has been obtained for the extended supersaturated designs. Some examples and a small catalogue of E(χ²)-optimal$E({\chi }^2)\mathrm{-}\mathrm{optimal}$ supersaturated designs are also presented.     

Seven useful designs

When designing a clinical trial there is a need to design a study that achieves the objectives of a trial both efficiently and with minimum resources. This paper describes seven trial designs that could possibly be used in clinical development and highlights how a design although not optimal for an individual study may be optimal for a wider clinical program.     

A generalisation of T‐optimality for discriminating between competing models with an application to pharmacokinetic studies

The T‐optimality criterion is used in optimal design to derive designs for model selection. To set up the method, it is required that one of the models is considered to be true. We term this local T‐optimality. In this work, we propose a generalisation of T‐optimality (termed robust T‐optimality) that relaxes the requirement that one of the candidate models is set as true. We then show an application to a nonlinear mixed effects model with two candidate non‐nested models and combine robust T‐optimality with robust D‐optimality. Optimal design under local T‐optimality was found to provide adequate power when the a priori assumed true model was the true model but poor power if the a priori assumed true model was not the true model. The robust T‐optimality method provided adequate power irrespective of which model was true. The robust T‐optimality method appears to have useful properties for nonlinear models, where both the parameter values and model structure are required to be known a priori, and the most likely model that would be applied to any new experiment is not known with certainty. Copyright © 2012 John Wiley & Sons, Ltd.     

中部地区人才引进政策设计研究

以中国加入WTO为背景,将中部6省作为研究对象,通过构造均匀实验设计方案,运用DPS系统全面探查了地域、单位性质、住房补贴、安家费、年薪、职务或职称待遇、科研(或项目)启动费、配偶安排、子女安排和合同期限10个因素对人才的吸引力,并在比较不同样本结果的基础上确定了中部地区人才引进政策的优化组合方式.     

存在荣誉效用的等级竞赛机制分析

针对存在荣誉效用的等级竞赛,研究在等级数已定的条件下,以总努力最大化为目标的竞赛设计者如何设置竞赛人数和各等级人数的问题。通过分析荣誉效用由于相邻等级容量调整所引起的变化对总努力的影响,得到结论：无论能力分布如何,将最高等级容量设置得很小,对竞赛设计者而言,是更合理的选择;当竞赛者的能力分布为凹函数时,将中低等级的容量设置得相对较大更合理;当能力分布为凸函数时,将中高等级的容量设置得相对较小更合理。     

Consensual commitment: A grounded theory of the meso-level influence of organizational design on leadership and decision-making

This research examined the relationship between organizational design and leadership in decision-making teams. It used a grounded theory-based qualitative research design. The validity of the research was enhanced by data triangulation, wherein quantitative psychometric data augmented the qualitative data that are traditionally used. The research was based upon two organizations within the substantive setting of the knowledge industry. The higher order category of consensual commitment explained effective decision-making. At the meso-level of leadership modeling, organizational design influenced both leadership style and decision-making. Specifically, an organizational design that generated lateral job roles and a relational leadership orientation was found to enhance consensual commitment, and provided a level of assurance against dysfunctional team dynamics.     

Using the integrative model of behavioral prediction to understand college students’ STI testing beliefs,intentions, and behaviors

ABSTRACT

Objectives: To identify salient behavioral determinants related to STI testing among college students by testing a model based on the integrative model of behavioral (IMBP) prediction. Participants: 265 undergraduate students from a large university in the Southeastern US. Methods:Formative and survey research to test an IMBP-based model that explores the relationships between determinants and STI testing intention and behavior. Results: of path analyses supported a model in which attitudinal beliefs predicted intention and intention predicted behavior. Normative beliefs and behavioral control beliefs were not significant in the model; however, select individual normative and control beliefs were significantly correlated with intention and behavior. Conclusions: Attitudinal beliefs are the strongest predictor of STI testing intention and behavior. Future efforts to increase STI testing rates should identify and target salient attitudinal beliefs.     

思想政治理论课实践教学网络化管理模式研究

本文通过对思想政治理论课实践教学管理模式的研究,构建基于网络运行下的思想政治理论课实践教学管理新模式,即将现代信息技术运用到教学管理中。为确保实践教学各环节实施质量,增强思想政治理论课实践教学实效性提供合理优化的管理新模式。     

计算机辅助风景园林规划设计策略探讨

随着计算机技术的发展,风景园林规划设计与诸多相关学科不断交叉的发展趋势,促使计算机与风景园林规划设计之间的联系也进一步融糅。其主要涉及3个方面:①地理信息系统,解决风景园林规划设计中复杂数据信息录入、综合分析与制图的问题;②生态辅助设计技术,解决热、风、光、声环境分析与优化的问题;③模型构建,拓展传统设计无法触及的形态领域及重新诠释传统三维模型的构建问题。将计算机仅用于制图的狭隘认知拓展到计算机辅助风景园林规划设计交叉学科的分析上来,有利于计算机辅助风景园林规划设计的发展和学科应用。     

依托优势坚持特色错位竞争——以北京化工大学物流管理新专业建设为例

物流管理专业是我国高等教育中的新兴专业,目前很多高校都在进行物流管理专业建设方面的探索研究。本文以北京化工大学的物流管理专业建设为背景,创新培养理念,提出物流管理专业应以“依托优势、坚持特色、错位竞争”为指导原则,并对培养目标、专业方向和课程体系设置等方面进行了深入的探讨。希冀对物流管理专业的建设提供一定的借鉴。