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韩振来 《济南大学学报(社会科学版)》1998,(2)
研究了一类具有变系数的二阶中立型时滞差分方程的振动性,得到了该类方程振动及差分算子△振动的一个充分条件. 相似文献
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宋德元 《江汉大学学报(社会科学版)》2000,17(3):46-50
介绍接地与接零的概念、接地的种类和作用、保护接地与接零的基本原理、N线和PE线的区别等个问题。 相似文献
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在社会工作中,价值中立是指社会工作者有阶段性地保持价值中立的立场,以客观的态度对待案主的问题和行为,并对案主的价值观不加以评价。在社会工作实务中,保持价值中立对于社会工作者有效地协助案主分析解决问题显得十分重要。如何在实务中保持价值中立,对于社会工作者来说则显得比较困难。结合实习的经验及思考,笔者从个案工作和小组工作两个方面的实例阐述自己对于如何做到价值中立的认识。个案工作不同阶段、小组工作中不同角色要做到价值中立不同的表现是本文的讨论重点。 相似文献
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Summary This paper introduces a Bayesian nonparametric estimator for an unknown distribution function based on left censored observations.
Hjort (1990)/Lo (1993) introduced Bayesian nonparametric estimators derived from beta/beta-neutral processes which allow for
right censoring. These processes are taken as priors from the class ofneutral to the right processes (Doksum, 1974). The Kaplan-Meier nonparametric product limit estimator can be obtained from these Bayesian nonparametric
estimators in the limiting case of a vague prior.
The present paper introduces what can be seen as the correspondingleft beta/beta-neutral process prior which allow for left censoring. The Bayesian nonparametyric estimator is obtained as in the
corresponding product limit estimator based on left censored data. 相似文献
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王志斌 《榆林高等专科学校学报》2004,14(3):6-10
得到了变系数高阶中立型时滞微分方程d^n/d^tn[x(t) p(t)x(t-τ)] ∑i=1^mQi(t)(t-бi)=0的渐近性和n为偶数时解振动的充分性判据。改进和推广了文献^[1-4]中的结果。 相似文献
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"民事政策"困境的解决和其蕴含的价值有赖于对"私法与国家"这一问题阈的探究,而兼顾管制和自治的"中立性的民法"理论妥当地确立了民法和国家关系,从而不仅为"国家政策能否成为民法法源"提供了理论回答,还为"国家政策如何成为民法法源"提供了指引:即在"有无法律漏洞存在"和"有无可得适用的民事政策存在"的双重控制的前提下,对民事政策进行谨慎的"合目的性的解释",以实现私法自治和国家管制的平衡. 相似文献
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Deborah Knirsch 《Review of Managerial Science》2007,1(2):151-165
In public economics, effective tax rates (ETRs) are often used to measure the combined effects of tax rates, tax bases, and
the time effect of taxation. Until now, the modelling of comparable figures for revealing tax effects and tax-induced distortions
is not solved satisfactorily. This paper derives an ETR approach based on neutral tax systems. In contrast to traditional
measures of ETRs, the neutrality-based ETR discloses preferential or discriminatory taxation of investments regardless of
their pre-tax rate of return. Moreover, comparing different ETRs exposes the degree of tax-induced investment distortions.
相似文献
Deborah KnirschEmail: |