大学英语写作课中的同伴反馈

同伴反馈是大学英语写作课中一种行之有效的教学方法。同伴反馈有利于提高评价者的写作水平、促进学生之间的合作和交流。     

逆变器并联运行控制策略研究

环流是影响逆变器并联运行性能的一个重要因素,本文介绍了环流产生的原因及环流反馈控制原理,并基于此原理提出了一种双逆变器并联控制策略,并通过仿真验证了所提方法有效抑制环流。     

中国房地产泡沫与非泡沫--以投机理论为基础的实证分析

文章在对当前房地产泡沫若干观点作简单综述和对房地产泡沫定义辨析的基础上,建立了房地产投机泡沫检验模型,并对中国房地产业泡沫性与非泡沫性进行了实证研究,最后得出当前中国房地产业不存在投机泡沫的结论。     

基于胜任特征和反馈控制模型的运筹学课程教学体系研究——以工商管理专业为例

作为基础课程与专业课的桥梁,运筹学是一门实践性很强的专业基础课。本文以工商管理专业为例,根据运筹学的特点和专业需求,设计并构建了基于胜任特征运筹学课程教学体系和反馈控制模式。该体系和模式充分考虑了工商管理专业综合能力培养的要求,以形成学生胜任特征为目标,信息反馈为调控手段,通过教学方式的完善,进行运筹学课程教学体系的改革尝试,最后提出了相应的对策建议。     

三级生物质供应链的奖惩与回馈契约协调研究

为了优化生物质能供应链,降低成本,在无扰动因素情况,需求不确定且与价格有关的条件下,研究了由能源公司、基地和农户组成的三级生物质供应链中,奖惩与回馈契约对供应链的协调问题,建立了满足渠道协调的条件和供应链内各级参与者实现互赢的数学模型,最后将其用于数值算例中验证。结果证明契约参数的合理选择可以实现供应链各方利益最大。     

基金股票仓位与A股市场走势相关性研究

在划分股市牛熊周期的基础上,采用VECM模型和VAR方法对基金股票仓位变动与股票市场走势之间关系进行研究,结果表明基金股票仓位与股票市场收益率二者之间的关系存在着显著性和非稳定性,即基金作为主要机构投资者对股票市场的走势具有重要影响作用,而在股市的各个不同阶段,基金持仓比例的波动与A股指数收益率二者之间的关系各不相同。     

When Passion Fades: Disentangling the Temporal Dynamics of Entrepreneurial Passion for Founding

This study examines how and why entrepreneurial passion for founding changes over time. In particular, we propose that in the founding phase of a venture's lifecycle entrepreneurs’ founding identity centrality will remain stable over time. We also propose, however, that in our sample and time period studied, entrepreneurs’ intense positive feelings for founding will decrease over time. On the basis of theories of positive illusion, self‐regulation and role theory, we further hypothesize that venture idea change, change in role ambiguity and entrepreneurs’ feedback‐seeking behaviour are factors that help explain the rate of change in entrepreneurs’ intense positive feelings for founding. Using a three‐wave longitudinal research design, we find that among a sample of 112 entrepreneurs’ identity centrality does not change over time, whereas intense positive feelings for founding decrease over time. Moreover, the more entrepreneurs change their venture ideas, the weaker their decrease in intense positive feelings. Further, we show that entrepreneurs who frequently seek feedback suffer less from reduced positive feelings in response to higher increases in role ambiguity as compared to entrepreneurs who seek less feedback.     

When Feedback Interventions Backfire: Why Higher Performance Feedback May Result in Lower Self‐Perceived Competence and Satisfaction with Performance

In relative performance evaluation systems, appraisers may choose to adopt stricter or laxer evaluation criteria. When laxer (vs. stricter) criteria are used, higher absolute performance evaluations become easier (vs. harder) to achieve. Thus, each appraisee's absolute performance feedback and the mean of the distribution of absolute performance feedback are shifted upward (vs. downward). Yet, relative performance remains constant. When evaluation outcomes depend solely on relative performance, can the adoption of laxer (vs. stricter) criteria—leading to higher absolute performance feedback but no change in relative performance—influence appraisees’ satisfaction with performance? Despite the ubiquity of such systems in organizations, research has not addressed this question. This article points to an important gap between practitioners’ beliefs and research findings. We show that while most appraisers believe that higher absolute performance feedback will automatically result in more satisfaction with performance, the opposite may also happen. Specifically, we find that appraisees with a stronger (vs. weaker) chronic or contextual need to engage in social comparison are more satisfied with lower (vs. higher) absolute performance feedback. Overall, we demonstrate why and how feedback interventions in relative performance evaluation systems may backfire, and suggest a set of practical guidelines for maximizing appraisees’ satisfaction with performance in such systems. © 2015 Wiley Periodicals, Inc.     

基于复合战略控制系统的战略执行力研究

从控制理论的角度对战略控制系统与战略执行力的关系、传统战略控制系统进行了分析,在此基础上构建了基于复合战略控制系统的战略执行流程,为提高战略执行力提供了一种新思路。     

从语言测试类型与教学反馈看大学英语考试改革作用

大学英语考试改革经过2005年的试点,2007年的实施,到2013年的微调已经引起了社会的广泛关注,也产生了诸多影响。本文就语言测试和语言教学关系,从英语的测试类型、考试功能来探讨大学英语考试改革作用。鉴于大众化高等教育时代的来临,本文提出公正有效的语言测试能对学生语言应用能力进行客观、公正的评价,强调大学英语教育仍要以语言知识的学习和基本技能的应用为主,并提出教学评价应所根据地区和院校的不同设置不同的标准,使学生健康成长。