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71.
黄凤祝 《同济大学学报(社会科学版)》2009,20(4):20-27
在<亲和力>这部歌德的晚期作品中,诗人探求的是"情爱美学",重在"无性美学"的理念.他试图从性的欲望中逃脱出来,寻求一种"无性的圣洁".情爱和性欲作为决定婚姻选择的亲和力,成为引导命运的一种力量.在现实世界中,歌德的"情爱"无法逃脱"爱欲"的支配,注定是失败者.在虚构的世界中, 歌德试图与这一"命运"进行抗争.本文尝试从歌德<亲和力>的创作以及本雅明对歇德的文学批评入手,通过对作品"实在内涵"的分析,探求其"真实内涵",即作品中"不可见"的一面. 相似文献
72.
This paper develops a bootstrap hypothesis test for the existence of finite moments of a random variable, which is nonparametric and applicable to both independent and dependent data. The test is based on a property in bootstrap asymptotic theory, in which the m out of n bootstrap sample mean is asymptotically normal when the variance of the observations is finite. Consistency of the test is established. Monte Carlo simulations are conducted to illustrate the finite sample performance and compare it with alternative methods available in the literature. Applications to financial data are performed for illustration. 相似文献
73.
N. Balakrishnan R.C. Tripathi N. Kannan H.K.T. Ng 《Journal of statistical planning and inference》2010
In this paper, we consider the problem of testing the equality of two distributions when both samples are progressively Type-II censored. We discuss the following two statistics: one based on the Wilcoxon-type rank-sum precedence test, and the second based on the Kaplan–Meier estimator of the cumulative distribution function. The exact null distributions of these test statistics are derived and are then used to generate critical values and the corresponding exact levels of significance for different combinations of sample sizes and progressive censoring schemes. We also discuss their non-null distributions under Lehmann alternatives. A power study of the proposed tests is carried out under Lehmann alternatives as well as under location-shift alternatives through Monte Carlo simulations. Through this power study, it is shown that the Wilcoxon-type rank-sum precedence test performs the best. 相似文献
74.
Irene Y. H. Ng 《Social Policy & Administration》2015,49(7):946-965
This article presents findings from a survey of 440 Singaporeans on their attitudes towards welfare and welfare recipients. Attitudes were generally favourable, but sentiments towards higher taxes to help the poor were ambivalent. Controlled for demographic characteristics, ‘poverty sympathizers’ and affiliates of opposition political parties held the most liberal views, but were not more willing to pay higher taxes. Instead, poor respondents on the one hand and highly educated respondents on the other hand were more willing to pay higher taxes. Knowledge accumulation and beliefs about causes of poverty were strong predictors of attitudes. Effects of personal values and self‐interest were less evident. Couched against the backdrop of an economy that has experienced rapid transformation and one of the widest income inequality in the developed world, the article discusses the critical juncture of social response and policy choices that Singapore finds itself. 相似文献
75.
In the analysis of recurrent events where the primary interest lies in studying covariate effects on the expected number of events occurring over a period of time, it is appealing to base models on the cumulative mean function (CMF) of the processes (Lawless & Nadeau 1995). In many chronic diseases, however, more than one type of event is manifested. Here we develop a robust inference procedure for joint regression models for the CMFs arising from a bivariate point process. Consistent parameter estimates with robust variance estimates are obtained via unbiased estimating functions for the CMFs. In most situations, the covariance structure of the bivariate point processes is difficult to specify correctly, but when it is known, an optimal estimating function for the CMFs can be obtained. As a convenient model for more general settings, we suggest the use of the estimating functions arising from bivariate mixed Poisson processes. Simulation studies demonstrate that the estimators based on this working model are practically unbiased with robust variance estimates. Furthermore, hypothesis tests may be based on the generalized Wald or generalized score tests. Data from a trial of patients with bronchial asthma are analyzed to illustrate the estimation and inference procedures. 相似文献
76.
Past research showed that people are able to perceive the personality of others at zero acquaintances. There are two main ways, verbal and non-verbal methods, which play an important role for one in perceiving personality of others. Extensive research was conducted in relating personality with verbal, paralinguistic and gestures cues. However, there are not much research, to our knowledge, that relates the appearance and perceived personality of robots. The main objective of this research is to relate individual design features with big five perceived personality of the robots. We used the results of rated perceptions across 100 pictorial images of robots and relate the results with the 40 individual design features using General Linear Model (GLM). The initial results of the GLM analysis showed that participants' rating of personality of robot fell along the dimension of perceived friendliness which is a common rotation of extroversion and agreeableness. Some relationships were found between humanlike design features and perceived friendliness of robots. Since participants are more familiar with humans, participants perceived robots with humanlike features friendlier than the others. Some other findings such as color and surface material were found related with participants' perceived friendliness as well. In the future, we will work on the analysis of the main and interaction effects of individual features on user's perceived friendliness. 相似文献
77.
Public Private Partnerships (PPP) have been used extensively in both developing and developed countries in delivering various types of projects, ranging from road construction, railway transport systems to health care facilities and schools. Critical success factors of PPP schemes at the implementation stage were identified. It is however more important for decision-makers to identify the factors for feasibility evaluation of adopting the PPP at the outset. This study aims to explore the key successful ingredients to be assessed at the initial stage of PPP projects as perceived public sector, private consortium and general community so as to attain a “triple win” scenario, via a questionnaire survey and a series of expert interviews conducted in Hong Kong. Survey results indicate that the most critical factor for evaluating the feasibility of PPP projects, especially to the general community, is an acceptable level of tariff. Cost effectiveness and financial attractiveness are the most important evaluation factors as ranked by the public sector and private consortium respectively. In addition, the existence of a long-term demand for the proposed services, availability of strong private consortium, alignment with government’s strategic objectives, as well as reliable service delivery are also rated as highly important to the success of PPP schemes. Addressing the tripartite expectations is indispensable to ensure the feasibility and successful delivery of public services and infrastructure projects via PPP schemes. 相似文献
78.
Siddhivinayak Hirve Johan H. L. Oud Somnath Sambhudas Sanjay Juvekar Yulia Blomstedt Stephen Tollman Stig Wall Nawi Ng 《Social indicators research》2014,117(1):105-119
The Study on global AGEing and adult health (SAGE) aims at improving empirical understanding of the health and well-being of older adults in low- and middle-income countries. A total of 321 adults aged 50 years and older were interviewed in rural Pune district, India, in 2007. We used Structural Equation Modelling (SEM) to examine the pathways through which social factors, functional disability, risk behaviours, and chronic disease experience influence self-rated health (SRH) and quality of life (QOL) amongst older adults in India. Both SRH and QOL worsened with increased age (indirect effect) and limitations in functional ability (direct effect). QOL, socio-economic status (SES), and social networking had no significant effect on SRH. Smoking was associated with the presence of at least one chronic illness, but this did not have a statistically significant effect on SRH. Higher social networking was seen amongst the better educated and those with regular income, which in turn positively affected the QOL rating. QOL had a direct, but statistically not significant, effect on SRH. In conclusion, the indirect effects of age on SRH mediated through functional ability, and the effects of SES on QOL mediated through social networking, provide new understanding of how age and socio-economic status affect SRH and QOL. By allowing for measurement errors, solving for collinearity in predictor variables by integrating them into measurement models, and specifying causal dependencies between the underlying latent constructs, SEM provides a strong link between theory and empirics. 相似文献
79.
WILCOXON-TYPE RANK-SUM PRECEDENCE TESTS 总被引:1,自引:0,他引:1
This paper introduces Wilcoxon‐type rank‐sum precedence tests for testing the hypothesis that two life‐time distribution functions are equal. They extend the precedence life‐test first proposed by Nelson in 1963. The paper proposes three Wilcoxon‐type rank‐sum precedence test statistics—the minimal, maximal and expected rank‐sum statistics—and derives their null distributions. Critical values are presented for some combinations of sample sizes, and the exact power function is derived under the Lehmann alternative. The paper examines the power properties of the Wilcoxon‐type rank‐sum precedence tests under a location‐shift alternative through Monte Carlo simulations, and it compares the power of the precedence test, the maximal precedence test and Wilcoxon rank‐sum test (based on complete samples). Two examples are presented for illustration. 相似文献
80.