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681.
AbstractThe annual meeting of the Ohio Valley Group of Technical Services Librarians (OVGTSL) was held May 16–18, 2007, at the Holiday Inn-University Plaza in Bowling Green, Kentucky. One hundred twenty technical services librarians from Indiana, Ohio, Kentucky, and points beyond gathered for programming centered around the theme of “Mapping Our Way: New Formations in Technical Services.” 相似文献
682.
J. Gani 《统计学通讯:理论与方法》2013,42(7):1236-1240
In this article, a non homogeneous immigration-death process with delay in the death rate parameter is considered. A process with a time-dependent delay is developed and shown to result in a non homogeneous Poisson process. 相似文献
683.
Network analysis is an important technique for project management. However, the current literature is biased toward beta distribution for modeling activity times. In this article, we have critically examined the role of beta distribution. It has been shown that beta distribution plays no specific role. Further, the method for calculating the chance of project completion must be revised. We have accordingly suggested an alternative modeling in terms of gamma distribution and proposed how to calculate the chance of project completion by taking into consideration both critical and noncritical paths. For demonstration purposes, we have considered a small project. 相似文献
684.
高校“青马工程”是社会转型期国家培养较高政治素养、较高理论和实践能力的优秀青年培养项目。而在教育实践过程中,“青马工程”却面临着特色亮点不明显、实效针对性不强以及内涵建设不足等发展困境。上海大学“青马工程”不断创新育人途径,提倡多样化教育,以满足高校学生理论学习和实践探索的需求。多样化教育涵盖了传统文化教育、信仰教育、同伴教育等多种教育途径,为进一步提升高校“青马工程”的有效性提供了经验借鉴。 相似文献
685.
"2011计划"把高校作为协同创新的组织主体,将创新人才培养过程凝聚在协同创新中心研究的前沿阵地,提升高校人才、学科、科研三位一体的创新能力,有别于"973"等项目以企业和研究机构作为组织协同主体。协同创新中心的治理模式、组织管理和互动条件是落实"2011计划"的核心工作。能动致变的演化机制、优化设计的控制机制及其之间的耦合是保障协同创新成败的关键。 相似文献
686.
687.
基于控制和心理契约理论,本论文研究IT外包项目中客户与供应商双方心理契约匹配情境对于控制模式的影响.本文是一个包括五个IT外包项目的多案例研究,对象是国内一家著名通信设备制造商,它在其中两个项目中以供应商的角色出现,在另外三个项目中则作为客户方.根据本文第一作者参与这些项目的亲身经历和多次追踪访谈以及其它相关资料,本研究识别出项目双方心理契约关系的四种匹配模式--相互交易、客户弱势、供应商弱势和相互忠诚,及其各自对应的关系特征.研究结果显示,在相互交易情境中,客户对供应商执行更多的结果控制;相反,相互忠诚的情境涉及更多的非正式控制.此外,在客户与供应商心理契约不匹配的情况下,客户倾向对供应商施加更多的行为控制. 相似文献
688.
Group project work is an integral part of many university courses. Assigning students to project groups can be difficult because of the students' diverse backgrounds. Many instructors therefore decide not to assign group projects. This paper develops and validates an instrument that assigns both experienced and inexperienced students to different project groups, thereby creating a balanced, fair environment. The instrument is checked for reliability and validity and then is used to assign students to different project groups. Based on group performance, the end-of-the-semester results also are provided. Path analysis is used to test a causal model. Conclusions and implications for future research are presented. 相似文献
689.
三峡水库重庆库区移土培肥的效益分析——以云阳县为例 总被引:1,自引:0,他引:1
应用前后对比分析法,对三蛱水库重庆库区云阳县移土培肥一期与二期工程进行效益分析;得出移土培肥工程将给三峡库区带来巨大的生态效益、经济效益和社会效益的结论;说明该工程不仅能带动库区经济发展,并对其社会及生态环境产生深远影响. 相似文献
690.
Shintaro Hagiwara Greg M. Paoli Paul S. Price Maureen R. Gwinn Annette Guiseppi-Elie Patrick J. Farrell Bryan J. Hubbell Daniel Krewski Russell S. Thomas 《Risk analysis》2023,43(3):498-515
A number of investigators have explored the use of value of information (VOI) analysis to evaluate alternative information collection procedures in diverse decision-making contexts. This paper presents an analytic framework for determining the value of toxicity information used in risk-based decision making. The framework is specifically designed to explore the trade-offs between cost, timeliness, and uncertainty reduction associated with different toxicity-testing methodologies. The use of the proposed framework is demonstrated by two illustrative applications which, although based on simplified assumptions, show the insights that can be obtained through the use of VOI analysis. Specifically, these results suggest that timeliness of information collection has a significant impact on estimates of the VOI of chemical toxicity tests, even in the presence of smaller reductions in uncertainty. The framework introduces the concept of the expected value of delayed sample information, as an extension to the usual expected value of sample information, to accommodate the reductions in value resulting from delayed decision making. Our analysis also suggests that lower cost and higher throughput testing also may be beneficial in terms of public health benefits by increasing the number of substances that can be evaluated within a given budget. When the relative value is expressed in terms of return-on-investment per testing strategy, the differences can be substantial. 相似文献