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991.
铸牢中华民族共同体意识是实现国家统一之基础、加强民族团结之根本、提振民族精神之灵魂。厘清河西走廊在铸牢中华民族共同体意识过程中的生成过程,把握河西走廊之历史定位,统筹规划和认识河西走廊在促进民族团结、铸牢中华民族共同体意识中的重大战略支撑作用,有助于在新时代战略框架下铸牢中华民族共同体意识,推进民族团结进步事业,实现中华民族伟大复兴。新时代铸牢河西走廊民族共同体意识必须切实全面加强党的领导,深化民族团结教育;强化地区经济互助,守正创新发展特色;深化爱国统一战线,强化思想政治引领;加强民族文化交流,增进民族文化认同;完善民族法治建设,依法治理民族事务。 相似文献
992.
Nico F. Laubscher 《The American statistician》2013,67(1):28-40
A lemma is given which simplifies the derivation of maximum likelihood estimates of the covariance matrix in the multivariate normal case. 相似文献
993.
It is well known that the ordinary least squares estimator of Xβ in the general linear model E y = Xβ, cov y = σ2 V, can be the best linear unbiased estimator even if V is not a multiple of the identity matrix. This article presents, in a historical perspective, the development of the several conditions for the ordinary least squares estimator to be best linear unbiased. Various characterizations of these conditions, using generalized inverses and orthogonal projectors, along with several examples, are also given. In addition, a complete set of references is provided. 相似文献
994.
Gauss M. Cordeiro Antonio Eduardo Gomes Cibele Queiroz da-Silva 《Journal of Statistical Computation and Simulation》2013,83(1):114-138
The Weibull distribution is one of the most important distributions in reliability. For the first time, we introduce the beta exponentiated Weibull distribution which extends recent models by Lee et al. [Beta-Weibull distribution: some properties and applications to censored data, J. Mod. Appl. Statist. Meth. 6 (2007), pp. 173–186] and Barreto-Souza et al. [The beta generalized exponential distribution, J. Statist. Comput. Simul. 80 (2010), pp. 159–172]. The new distribution is an important competitive model to the Weibull, exponentiated exponential, exponentiated Weibull, beta exponential and beta Weibull distributions since it contains all these models as special cases. We demonstrate that the density of the new distribution can be expressed as a linear combination of Weibull densities. We provide the moments and two closed-form expressions for the moment-generating function. Explicit expressions are derived for the mean deviations, Bonferroni and Lorenz curves, reliability and entropies. The density of the order statistics can also be expressed as a linear combination of Weibull densities. We obtain the moments of the order statistics. The expected information matrix is derived. We define a log-beta exponentiated Weibull regression model to analyse censored data. The estimation of the parameters is approached by the method of maximum likelihood. The usefulness of the new distribution to analyse positive data is illustrated in two real data sets. 相似文献
995.
996.
Damian Brzyski Marta Karas Beau M Ances Mario Dzemidzic Joaquín Goi Timothy W Randolph Jaroslaw Harezlak 《Revue canadienne de statistique》2021,49(1):203-227
One of the challenging problems in neuroimaging is the principled incorporation of information from different imaging modalities. Data from each modality are frequently analyzed separately using, for instance, dimensionality reduction techniques, which result in a loss of mutual information. We propose a novel regularization method, generalized ridgified Partially Empirical Eigenvectors for Regression (griPEER), to estimate associations between the brain structure features and a scalar outcome within the generalized linear regression framework. griPEER improves the regression coefficient estimation by providing a principled approach to use external information from the structural brain connectivity. Specifically, we incorporate a penalty term, derived from the structural connectivity Laplacian matrix, in the penalized generalized linear regression. In this work, we address both theoretical and computational issues and demonstrate the robustness of our method despite incomplete information about the structural brain connectivity. In addition, we also provide a significance testing procedure for performing inference on the estimated coefficients. Finally, griPEER is evaluated both in extensive simulation studies and using clinical data to classify HIV+ and HIV? individuals. 相似文献
997.
《Journal of Organizational Behavior Management》2012,32(3-4):280-292
ABSTRACTPerformance scorecards are tools that measure staff performance across multiple criteria to produce a single, overall performance score, which can be used as feedback for employees. While scorecards are considered a low-cost and effective approach to improve performance, published research demonstrating the effectiveness of scorecards is limited. The current study attempted to first demonstrate the effectiveness of scorecard feedback to improve performance, then, evaluate the added effects of linking the scorecard feedback to a lottery. Current results suggest scorecard feedback can modestly improve average employee performance, and linking the scorecard to a lottery may result in further performance improvements. 相似文献
998.
章成 《太原理工大学学报(社会科学版)》2014,(2):24-27
国际法这门学科,植根于历史,受制于现实,同时又着眼于未来。国际社会现实政治的光谱折射是国际法发展的历史背景,重思历史后的调整与进步是国际法发展的现代语境,变革时代的理念转型与价值重塑是国际法在当代的发展展望。中国国际法学肩负着“回应历史”和“建构未来”的双重时代使命,强化对现实问题的理论回应并完善相应的法律制度面向,是中国国际法学在当下的必然选择。 相似文献
999.
丁有有 《重庆交通学院学报(社会科学版)》2014,(3):98-101
从2007年党的十七大报告到2013年习近平总书记做出的"8.19"重要讲话,我国文化软实力完成了从概念到理论、从理论到实践的两次重要转折。中西方软实力的发展路线分野开始逐渐清晰。文化主权作为我国文化软实力的逻辑起点,体现着完全不同于西方的基调与立场,更体现出中国特色社会主义文化维护国家利益的基点所在。 相似文献
1000.
林喜芬 《昆明理工大学学报(社会科学版)》2014,(5):53-61
在复杂而多元的中国法律体系中,2010年“两个证据规定”和2012年《刑事诉讼法》的及时出台,不仅引入了证据裁判、程序法定等一系列现代证据法原则,而且确立了质证审查规则和非法证据排除规则,一定程度上提升了我国刑事证据法的人权保障水平和科学性。当然,当前刑事证据法规范也存在规则冲突和细致性不足等缺陷。成效与局限并存与“试错逻辑”和“博弈逻辑”并存有较大的关系,试错逻辑使得一部分改革举措更具有实务可操作性,但博弈逻辑也使得证据规则的制定与落实存在隐忧。 相似文献