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961.
欠发达地区高校图书馆馆员的继续教育问题 总被引:1,自引:0,他引:1
黄元碧 《贵州民族学院学报》2004,(2):136-139
本文以作者所在的图书馆为例 ,分析了图书馆专业人员的现状、继续教育的紧迫性和面临的问题 ,并结合作者进修学习的体会 ,对图书馆馆员的继续教育提出一些建设性的意见和建议。 相似文献
962.
林国明 《东北师大学报(哲学社会科学版)》2005,(5):91-96
为了代表犹太人受害者和犹太人组织与联邦德国进行赔偿谈判,世界各地的犹太人组织联合建立了"要求赔偿联合会".在瓦森纳尔谈判中,"要求赔偿联合会"通过与以色列协调谈判立场,成功地与联邦德国签署了<卢森堡条约>第一议定书和第二议定书,既为世界犹太人组织从联邦德国获得战争赔偿提供了法律保证,也为日后犹太人受害者向联邦德国寻求个人赔偿奠定了重要法律基础. 相似文献
963.
Avinash C Singh 《统计学通讯:理论与方法》2013,42(11):3255-3273
964.
Burk at al (1984) gave a results concerning the comparison of the length of the two different confidence intervals for variance ratio, when the construction of the intervals was based on the principle of “equal tails”11. The purpose of this paper is to be solve the similar problem in case of the principle of “minimal length”. 相似文献
965.
In this paper we introduce two estimators of a population proportion when randomized response sampling with a normal randomizing distribution is used* The estimators have been obtained by using the method of moments. Both of the proposed estimators are shown to be more efficient than the corresponding estimators of Eranklin (1989 b). 相似文献
966.
967.
Giorgio Pederzoli 《统计学通讯:理论与方法》2013,42(24):2903-2909
This paper examines the ratio of the determinants of two independent central Wishart matrices. The ratio is represented as a product of independent beta type-2 random variables and then the exact density is evaluated for the general case. Different representations and particular cases are also discussed. 相似文献
968.
Leptokurtosis and skewness characterize the distributions of the returns for many financial instruments traded in security markets. These departures from normality can adversely affect the efficiency of least squares estimates of the β's in the single index or market model. The proposed new partially adaptive estimation techniques accommodate skewed and fat tailed distributions. The empirical investigation, which is the first application of this procedure in regression models, reveals that both skewness and kurtosis can affect β estimates. 相似文献
969.
《统计学通讯:理论与方法》2013,42(10):2117-2133
This paper introduces a nonparametric test of symmetry for ranked-set samples to test the asymmetry of the underlying distribution. The test statistic is constructed from the Cramér-von Mises distance function which measures the distance between two probability models. The null distribution of the test statistic is established by constructing symmetric bootstrap samples from a given ranked-set sample. It is shown that the type I error probabilities are stable across all practical symmetric distributions and the test has high power for asymmetric distributions. 相似文献
970.
《统计学通讯:理论与方法》2013,42(9):1737-1752
Abstract The problem of obtaining the maximum probability 2 × c contingency table with fixed marginal sums, R = (R 1, R 2) and C = (C 1, … , C c ), and row and column independence is equivalent to the problem of obtaining the maximum probability points (mode) of the multivariate hypergeometric distribution MH(R 1; C 1, … , C c ). The most simple and general method for these problems is Joe's (Joe, H. (1988). Extreme probabilities for contingency tables under row and column independence with application to Fisher's exact test. Commun. Statist. Theory Meth. 17(11):3677–3685.) In this article we study a family of MH's in which a connection relationship is defined between its elements. Based on this family and on a characterization of the mode described in Requena and Martín (Requena, F., Martín, N. (2000). Characterization of maximum probability points in the multivariate hypergeometric distribution. Statist. Probab. Lett. 50:39–47.), we develop a new method for the above problems, which is completely general, non recursive, very simple in practice and more efficient than the Joe's method. Also, under weak conditions (which almost always hold), the proposed method provides a simple explicit solution to these problems. In addition, the well-known expression for the mode of a hypergeometric distribution is just a particular case of the method in this article. 相似文献