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131.
学生在用英语表达汉语的某些特殊句式时,犯错的频率较高.作者在通过问卷调查和测试的方式找到造成学习困扰的特殊句式后,应用句法理论对英汉句式进行了比较,并从英汉句式结构的差别的角度剖析形成学习困扰的原因.  相似文献   
132.
The primary purpose of this study is to typify the respondent strategies of the OECD countries based on the interconnected structure of income and employment guarantees. More specifically, this article seeks to typify welfare policies into four types (welfare-to-work, welfare emphasis, labour emphasis, market emphasis) based on the leniency of the pension system and active state intervention in employment security. With the resultant four types, this article then places them as the dependent variable while incorporating per capita GDP, aged dependency ratio, pension maturity level, union density, constitutional structure index and degree of decommodification as causal variables. Through this process, this article aims to derive the decisive variable for each type through qualitative comparative analysis.  相似文献   
133.
指数分析法在经济分析的各个领域里已得到广泛的应用。但只用单一方法分析问题往往不够全面、深入。本文以工业劳动生产率的分析为例,从三个方面,多角度、多层次、比较系统地阐述了指数分析中独具特色的分析手法。  相似文献   
134.
随着金融业务的国际化,战略联盟已经成为银行提高自身竞争力的一个有效手段。研究确定商业银行联盟伙伴选择的原则与标准,根据这些标准,运用模糊聚类分析法对银行潜在的联盟伙伴的选择进行分析,使商业银行有针对性的与一些联盟伙伴发展合作伙伴关系,减少交易成本和搜寻成本,从而提高银行的运作效率。  相似文献   
135.
A novel framework is proposed for the estimation of multiple sinusoids from irregularly sampled time series. This spectral analysis problem is addressed as an under-determined inverse problem, where the spectrum is discretized on an arbitrarily thin frequency grid. As we focus on line spectra estimation, the solution must be sparse, i.e. the amplitude of the spectrum must be zero almost everywhere. Such prior information is taken into account within the Bayesian framework. Two models are used to account for the prior sparseness of the solution, namely a Laplace prior and a Bernoulli–Gaussian prior, associated to optimization and stochastic sampling algorithms, respectively. Such approaches are efficient alternatives to usual sequential prewhitening methods, especially in case of strong sampling aliases perturbating the Fourier spectrum. Both methods should be intensively tested on real data sets by physicists.  相似文献   
136.
While the concept of regular equivalence is equally applicable to dichotomous as well as valued networks, the identification of regular blocks in regular blockmodels is somewhat problematic when dealing with valued networks. Applying the standard procedure for identifying ties in such blockmodels, a procedure perhaps most suited for dichotomous networks, does tend to generate block images and reduced graphs that differ from intuitive notions of such structures.  相似文献   
137.
隐喻是人类认知思维的语言表现。隐喻是话语现象。其语篇性表现为衔接与连贯、信息性、目的性等因素。衔接与连贯是语篇的基础;隐喻的信息性蕴涵其目的性,同时受到目的性的影响;目的性实现语篇的真实意图。  相似文献   
138.
The International Conference on Harmonisation guideline ‘Statistical Principles for Clinical Trials’ was adopted by the Committee for Proprietary Medicinal Products (CPMP) in March 1998, and consequently is operational in Europe. Since then more detailed guidance on selected topics has been issued by the CPMP in the form of ‘Points to Consider’ documents. The intent of these was to give guidance particularly to non‐statistical reviewers within regulatory authorities, although of course they also provide a good source of information for pharmaceutical industry statisticians. In addition, the Food and Drug Administration has recently issued a draft guideline on data monitoring committees. In November 2002 a one‐day discussion forum was held in London by Statisticians in the Pharmaceutical Industry (PSI). The aim of the meeting was to discuss how statisticians were responding to some of the issues covered in these new guidelines, and to document consensus views where they existed. The forum was attended by industry, academic and regulatory statisticians. This paper outlines the questions raised, resulting discussions and consensus views reached. It is clear from the guidelines and discussions at the workshop that the statistical analysis strategy must be planned during the design phase of a clinical trial and carefully documented. Once the study is complete the analysis strategy should be thoughtfully executed and the findings reported. Copyright © 2003 John Wiley & Sons, Ltd.  相似文献   
139.
文章论述了利用财务指标分析法及判别分析法 ,对高速公路公司财务危机进行预测和警报 ,并运用多元判别分析法推导出高速公路行业的财务预警模型  相似文献   
140.
对高等教育私营化这一国际化趋势进行初步探索,分析高等教育私营化带来的利与弊。结合我国高等教育的现状,探讨如何应对高等教育私营化问题及其对中国的启示。  相似文献   
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