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751.
752.
Edwin H. Rhyne 《Sociological spectrum》2013,33(4):335-346
Three basic sociological distinctions—viewing the environment as home or place of sustenance, separation of home and workplace, and “thing” work versus “people” work—are used to illuminate such sociological concerns as environmental degradation as a social problem, social specialization and pollution, and the demographic profiles of environmentally concerned people. 相似文献
753.
Badi H. Baltagi 《Econometric Reviews》2013,32(2):165-169
This paper utilizes the results of Kruskal (1968), Zyskind (1967), and more recently Milliken and Albohali (1984) to derive a simple necessary and sufficient condition for 3SLS to be equivalent to 2SLS. This condition depends upon the inverse of the variance:covariance matrix of the disturbances, and the set of second stage regressors of each structural equation. More importantly, this condition should prove useful for econometric students and provides an easy method for checking sufficiency. 相似文献
754.
In this paper we study the sampling properties of a test statistic which has important applications in the area of linear stochastic control systems with multi-inputs and multi-outputs. The statistic is the ratio of a partial sum of the eigenvalues of a sample covariance matrix and its trace. It turns out that using a method due to Sugiura we may derive a useful approximation for its distribution up to and including terms of order l/n, where n denotes the appropriate size. Numerical illustrations using real data are given. 相似文献
755.
756.
Stephanie N. Seiler Ph.D. Bradley J. Brummel Ph.D. Kerri L. Anderson M.H.R.I.R. Kyoung Jin Kim Ph.D. Serena Wee Ph.D. C. K. Gunsalus J.D. 《Accountability in research》2013,20(4):217-246
We describe the summative assessment of role-play scenarios that we previously developed to teach central topics in the responsible conduct of research (RCR) to graduate students in science and engineering. Interviews with role-play participants, with participants in a case discussion training session, and with untrained students suggested that role-playing might promote a deeper appreciation of RCR by shifting the focus away from wanting to simply “know the rules.” We also present the results of a think-aloud case analysis study and describe the development of a behaviorally-anchored rating scale (BARS) to assess participants' case analysis performance. 相似文献
757.
E. Shirazi H. Doosti H.A. Niroumand N. Hosseinioun 《Journal of statistical planning and inference》2013
Here we consider wavelet-based identification and estimation of a censored nonparametric regression model via block thresholding methods and investigate their asymptotic convergence rates. We show that these estimators, based on block thresholding of empirical wavelet coefficients, achieve optimal convergence rates over a large range of Besov function classes, and in particular enjoy those rates without the extraneous logarithmic penalties that are usually suffered by term-by-term thresholding methods. This work is extension of results in Li et al. (2008). The performance of proposed estimator is investigated by a numerical study. 相似文献
758.
759.
S. H. Ong 《Statistics》2013,47(4):403-411
We consider two-sided Bayesian tolerance intervals, with approximate frequentist validity, for a future observation in balanced one-way and two-way nested random effects models. Probability matching conditions, specific to this problem, are derived in either case via a technique that involves inversion of approximate posterior characteristic functions. In addition to yielding probability matching priors for the present problem, these conditions are useful in evaluating certain other priors that have received attention in the literature. 相似文献
760.
朱志勇 《宝鸡文理学院学报(社会科学版)》1999,(3)
思维运动主体不是人脑,而是从事社会实践的人。近代形而上学唯物主义把人脑看作是思维运动的主体,虽然肯定了思维运动主体的物质性,但却忽视了它的社会实践性。马克思主义哲学从实践出发理解现存世界和人的思维,把实践看作“人的思维的最本质和最切近的基础”,将从事社会实践活动的人确立为思维运动的主体,从而在思维运动主体上实现了物质性、实践性和社会性三者的有机统一。 相似文献