Effects of Hourly,Low-Incentive,and High-Incentive Pay on Simulated Work Productivity: Initial Findings With a New Laboratory Method

The failures of previous studies to demonstrate productivity differences across different percentages of incentive pay may be partially due to insufficient simulation fidelity. The present study compared the effects of different percentages of incentive pay using a more advanced simulation method. Three payment methods were tested: hourly, low-incentive, and high-incentive (0%, 10%, and 100%) pay. Four participants performed a simulated work task for 30 6-hr sessions. Productivity under the 100% incentive condition was consistently higher than under the 10% condition for all participants. Productivity under the 10% condition was higher than under the 0% condition for two participants. Results suggest that different percentages of incentive pay may in fact produce productivity differences under more realistic simulated work conditions.     

五字教学法在两课教学中的应用

政治思想道德教育的全过程,是一个由知到行转化的复杂过程。它包含了知、情、意、信、行五个关键环节。因此,马列主义理论课和总想政治教育课教学应体现知、情、意、信、行五字法。这五者也是构成学生政治思想道德品质的基本要素,两课教学的过程是五个基本要素培养、提高和发展的过程。     

Designing and integrating composite networks for monitoring multivariate gaussian pollution fields

Networks of ambient monitoring stations are used to monitor environmental pollution fields such as those for acid rain and air pollution. Such stations provide regular measurements of pollutant concentrations. The networks are established for a variety of purposes at various times so often several stations measuring different subsets of pollutant concentrations can be found in compact geographical regions. The problem of statistically combining these disparate information sources into a single 'network' then arises. Capitalizing on the efficiencies so achieved can then lead to the secondary problem of extending this network. The subject of this paper is a set of 31 air pollution monitoring stations in southern Ontario. Each of these regularly measures a particular subset of ionic sulphate, sulphite, nitrite and ozone. However, this subset varies from station to station. For example only two stations measure all four. Some measure just one. We describe a Bayesian framework for integrating the measurements of these stations to yield a spatial predictive distribution for unmonitored sites and unmeasured concentrations at existing stations. Furthermore we show how this network can be extended by using an entropy maximization criterion. The methods assume that the multivariate response field being measured has a joint Gaussian distribution conditional on its mean and covariance function. A conjugate prior is used for these parameters, some of its hyperparameters being fitted empirically.     

移动技术教学之我见

本文对移动在篮球运动中的重要意义和作用,进行了深入的研究,对移动的教学方法进行了实践和总结。     

一类带耗散项非线性波动问题的研究

对一类带耗散项非线性波动方程进行了研究,用“参数微分法”,得到其解析近似解。其结果可用于研讨摄动对原物理问题的解的影响,类似的问题在许多动力学问题物理解的数值定性分析及应用WKB方处理时也会常遇到。     

刘祚昌先生的学术人生

刘祚昌先生是我国著名的历史学家、教育家和学贯中西的学者。他为新中国世界史专业的奠基工作做出了突出贡献,也是美国史和英国史研究的奠基人之一。改革开放后,在教学改革、教材建设和世界历史研究等方面取得了令人瞩目的成就,其美国史研究和杰斐逊研究在国内外享有盛誉。刘祚昌先生半个多世纪的学术人生曲折而辉煌,是留给我们的一笔宝贵的精神财富。     

基于熵值法的贸易可持续发展指数——以浙江省的实证研究为例

贸易可持续发展成为我国经济和社会可持续发展的重中之重。文章从贸易可持续发展的定义出发,提出由贸易升级指数、贸易稳定指数和贸易环保指数构成的贸易可持续发展综合评价指数,再运用熵值法实证测算浙江省贸易可持续发展指数,结果表明浙江省2002-2004年实证研究结果符合该时期的实际情况,表明该指数和评价方法是科学合理的。     

具有GARCH（1，1）-正态误差项的非对称单位根检验研究

摘　　要:理论研究表明许多经济变量呈现出非对称的门限自回归（TAR）或动态门限自回归（M-TAR）数据生成机制,因而非对称单位根检验就成为该领域的主要研究方向之一。本文对非对称单位根检验Enders-Granger方法在GARCH（1,1）-正态误差项下的检验水平与检验势作了系统的仿真研究。研究表明：GARCH（1,1）-正态误差项的TAR或M-TAR模型会对该方法的检验水平和检验势产生重要影响。     

探讨课堂教学艺术的培养与提高

教学艺术性是每个教师追求的最高境界,教学的艺术性能激发学生的学习兴趣,使学生长时间地保持对学习的热情,因此提高教学艺术水平,是把教育改革引向深入的重要课题。