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11.
在我国由计划经济向市场经济的体制转轨过程中,货币政策和财政政策已成为我国宏观经济调节的主要手段,在我国的经济发展中发挥了重要作用。但货币政策和财政政策是各自独立的政策体系,由于作用的方式和条件有较大区别,其效果也有较大不同,文章试图应用脉冲响应函数和方差分解方法,对改革开放以来我国货币政策和财政政策的效果进行实证比较研究,并得出有关结论,为我国的宏观调控政策提供理论分析和实证检验的依据。  相似文献   
12.
Longitudinal data often contain missing observations, and it is in general difficult to justify particular missing data mechanisms, whether random or not, that may be hard to distinguish. The authors describe a likelihood‐based approach to estimating both the mean response and association parameters for longitudinal binary data with drop‐outs. They specify marginal and dependence structures as regression models which link the responses to the covariates. They illustrate their approach using a data set from the Waterloo Smoking Prevention Project They also report the results of simulation studies carried out to assess the performance of their technique under various circumstances.  相似文献   
13.
Summary.  Official employment-related performance indicators in UK higher education are based on the population of students responding to the 'First destination supplement' (FDS). This generates potentially biased performance indicators as this population of students is not necessarily representative of the full population of leavers from each institution. University leavers who do not obtain qualifications and those who do not respond to the FDS are not included within the official analysis. We compare an employment-related performance indicator based on those students who responded to the FDS with alternative approaches which address the potential non-random nature of this subgroup of university leavers.  相似文献   
14.
从细胞因子的产生、作用特点及其对运动训练刺激所产生的生物学反应等方面。阐述了细胞因子对运动训练的反应受许多因素的影响,这一过程及其机制十分复杂.随着研究的深入,许多发现势必促使人们对运动损伤及其康复、运动与健康促进等一系列问题产生新的研究兴趣.  相似文献   
15.
章建立了雷诺润滑系统中的流体瞬态压力方程和镜板的运动方程,分析了该系统的瞬态响应和相对阻尼系数以及特征值,结果表明,雷诺润滑系统不会处于负阻尼运动状态,且系统是稳定的。  相似文献   
16.
文学翻译的创造性叛逆与读者接受   总被引:4,自引:0,他引:4  
文学翻译是译者在理解、解释原文基础上的创造性叛逆与读者对译文创造性叛逆的理解和反应的过程。文学翻译活动中的创造性叛逆的程度与可接受性必须以如下标准为依据:符合知识的客观性,符合理解的合理性、解释的普遍有效性,符合原文文本的定向性。  相似文献   
17.
关于外语专业题库建设范式的探讨   总被引:2,自引:0,他引:2  
本文通过对当前国内外语教育形式的综览 ,指出了外语专业的题库建设已成为当务之急 ,并通过对各种考试形式的分析 ,提出了外语题库建设的具体理论模式———以项目反应理论为基础的计算机自适应测试。文章就有关方面的实施提出了自己的看法。  相似文献   
18.
Terrorist actions are aimed at maximizing harm (health, psychological, economical, and political) through the combined physical impacts of the act and fear. Immediate and effective response to a terrorist act is critical to limit human and environmental harm, effectively restore facility function, and maintain public confidence. Though there have been terrorist attacks in public facilities that we have learned from, overall our experiences in restoration of public facilities following a terrorist attack are limited. Restoration of public facilities following a release of a hazardous material is inherently far more complex than in industrial settings and has many unique technical, economic, social, and political challenges. For example, there may be a great need to quickly restore the facility to full operation and allow public access even though it was not designed for easy or rapid restoration, and critical information is needed for quantitative risk assessment and effective restoration must be anticipated to be incomplete and uncertain. Whereas present planning documents have substantial linearity in their organization, the “adaptive management” paradigm provides a constructive parallel paradigm for restoration of public facilities that anticipates and plans for uncertainty, inefficiencies, and stakeholder participation. Adaptive management grew out of the need to manage and restore natural resources in highly complex and changing environments with limited knowledge about causal relationships and responses to restoration actions. Similarities between natural resource management and restoration of a public facility after a terrorist attack suggest that integration of adaptive management principles explicitly into restoration processes will result in substantially enhanced and flexible responses necessary to meet the uncertainties of potential terrorist attacks.  相似文献   
19.
Much of the health information available to consumers on the Internet is incomplete, out of date and even inaccurate. Seals of approval or trustmarks have been suggested as a strategy to assist consumers in identifying high-quality information. Little is known, however, about how consumers interpret such seals. This study addresses this issue by examining assumptions about the quality criteria that are reflected by a seal of approval. This question is of particular importance because a wide variety of quality criteria have been suggested for online health information, including: core aspects of quality such as accuracy, currency and completeness; proxy indicators of quality such as the disclosure of commercial interests; and indicators that reflect the quality of the site or the interaction it affords, such as the availability of a search mechanism. The results of this study suggest that seals of approval are assumed to certify information quality primarily with respect to core quality indicators, aspects that subjects both consider to be important and feel relatively less able to evaluate for themselves (compared with their ability to rate proxy indicators of information or indicators of site or interaction quality). This assumption is largely inconsistent with practice: most seals of approval involve assessment of proxy indicators of information quality, rather than direct assessment of content. These results identify a problem that certification or accreditation bodies must address since, unless and until consumer expectations are congruent with evaluation practice, seals of approval will seem to promise more than they deliver.  相似文献   
20.
跨国公司要在我国市场取得成功,必须更加着重于开发针对我国“大众市场”的战略,而减少对竞争激烈、市场趋于饱和的顶级城市的关注。跨国公司构建以消费者为中心的分销渠道应与消费者保持零距离接触,向终端市场靠拢,实现分销渠道扁平化,有利于与同一个市场上优势明显的本地公司进行有效竞争。从消费者的需求出发,实现本土化经营,以便更好地了解以及服务当地客户,提高客户的满意度。  相似文献   
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