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61.
Do politicians still tailor their messages for specific audiences,or has mass media coverage led them to homogenize their messages?Contentanalysis of 77 of Lyndon B. Johnson's public statements aboutVietnam showed that, depending on the audience, he did varythe content—which suggests that to some extentthe audienceis the message. 相似文献
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BYEONG U. PARK YOUNG KYUNG LEE TAE YOON KIM CHEOLYONG PARK 《Scandinavian Journal of Statistics》2006,33(3):451-462
Abstract. It is well known that major strength of non-parametric regression function estimation breaks down when correlated errors exist in the data. Positively (negatively) correlated errors tend to produce undersmoothing (oversmoothing). Several remedies have been proposed in the context of bandwidth selection problem, but they are hard to implement without prior knowledge of error correlations. In this paper we propose a simple estimator of error correlation which is ready to implement and reports a reasonably good performance. 相似文献
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李癸云 《长沙理工大学学报(社会科学版)》2011,(5):51-56
陈大为的诗笔不断出入历史与当下、中国与南洋、台湾与南洋等多重现实与想象纠缠的空间,以之来建构其叙事美学。此处试图针对陈大为诗中的"中国"符号,再探所谓中心/边缘的意识归属,试着从太简化的文化母国/离散文学的二元对立跳脱出来,观察其书写位置的流动性。 相似文献
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This paper extends the studies by Sridharan, Berry, and Udayabhanu from single-level MPS systems to multilevel material requirements planning (MRP) systems, and examines the impact of product structure, lot-sizing rules and cost parameters upon the selection of MPS freezing parameters under deterministic demand. A model is built to simulate the master production scheduling and material requirements planning operations in a make-to-order environment. The results show that all the MPS freezing parameters studied have a significant impact upon total inventory costs and schedule instability in multilevel MRP systems. First, the order-based freezing method is preferable to the period-based method. Secondly, the study finds that increasing the freezing proportion reduces both total inventory costs and schedule instability. This finding contradicts the finding by Sridharan et al. in single-level systems. Thirdly, the study finds that a higher replanning periodicity results in both lower total inventory cost and lower schedule instability. The study also indicates that the product structure and lot-sizing rules do not significantly influence the selection of MPS freezing parameters in a practical sense under most situations. However, the cost parameter seems to significantly influence the selection of replanning periodicity. 相似文献
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李康斌 《北京理工大学学报(社会科学版)》2012,14(5):97-102
国际民航组织1999年通过的《统一国际航空运输某些规则的蒙特利尔公约》于2003年11月4日生效,它对各国国内立法产生了深远影响.《蒙特利尔公约》采用两级责任制度规制航空承运人的责任,即对乘客人身造成伤亡达到10万特别提款权时适用严格责任原则,超过此限而无任何限制的适用举证倒置的推定责任原则.韩国已与2011年4月29日通过了商法典第6部分之国家航空运输法,该法明确了对乘客以及行李和货物造成损害的责任条款,并采用了《蒙特利尔公约》中的主要责任原则.韩国有关航空承运人责任的国内法将有效解决在运送乘客、行李和货物方面有关承运人责任的争议,并在其规定的抗辩和限制范围内,为受到损害的乘客和托运人提供适当赔偿. 相似文献
69.
This paper takes a look at product mix profitability and compares several alternative methodologies for selecting the optimal product mix. It is argued that the optimal product mix is not determined using traditional accounting methodologies and that dropping marginally profitable products based on the accounting rules will give you less than optimal profitability. This paper looks at two different ways for coming up with the optimal product mix: one using theory of constraints (TOC) and another using linear programming. 相似文献
70.
Recent discussions of antitrust based on the private interest theory of government conclude that the real, as opposed to the stated, purpose of antitrust legislation is to protect politically influential industries against competition. Yet several prominent antitrust scholars who accept the private interest theory of government in general see antitrust legislation serving the public interest by increasing competition. We argue that the private interest theory of government is consistent with the view that antitrust legislation promotes competition. Indeed antitrust legislation may be supported by organized interest groups because such legislation increases the competition they face. 相似文献