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排序方式: 共有309条查询结果,搜索用时 390 毫秒
301.
“大通关”建设已成为长三角改善贸易环境,发展外向型经济的必然选择。从经济学角度,讨论长三角“大通关”建设的理论基础及实践意义,根据国外“大通关”建设的经验和启示,长三角共同加快“大通关”建设需要努力打造服务型政府;发挥中央总揽全局与地方主导协调的作用,坚持科技创新与制度创新的结合。因此,要明确长三角各类口岸的功能定位,提高整体规划水平,推进相关体制改革,强化相应的金融监管,加快电子口岸信息平台建设。 相似文献
302.
以“项目化管理、实事化落实,过程化监督”为要义的基层党组织“好项目”的立项实施,是提高高校党建工作针对性、操作性的有益探索,在基层党组织建设的内客以及方法上有所突破和创新,收到一定的效果。 相似文献
303.
Fortunato Pesarin 《Statistical Methods and Applications》1992,1(1):87-101
Summary This paper deals with nonparametric methods for combining dependent permutation or randomization tests. Particularly, they
are nonparametric with respect to the underlying dependence structure. The methods are based on a without replacement resampling
procedure (WRRP) conditional on the observed data, also called conditional simulation, which provide suitable estimates, as
good as computing time permits, of the permutational distribution of any statistic. A class C of combining functions is characterized
in such a way that all its members, under suitable and reasonable conditions, are found to be consistent and unbiased. Moreover,
for some of its members, their almost sure asymptotic equivalence with respect to best tests, in particular cases, is shown.
An applicational example to a multivariate permutationalt-paired test is also discussed. 相似文献
304.
This paper deals with the relations between the polyhedron described by the inequalities of a block structured problem and the polyhedra described by the inequalities of the single blocks. In particular, classes of block structured problems are described for which zero-lifting of facet inducing inequalities of a single block yields facet inducing inequalities for the whole problem. Some applications are discussed. 相似文献
305.
Kai Fun Yu 《Revue canadienne de statistique》1989,17(4):377-389
Suppose it is desired to obtain a large number Ns of items for which individual counting is impractical, but one can demand a batch to weigh at least w units so that the number of items N in the batch may be close to the desired number Ns. If the items have mean weight ωTH, it is reasonable to have w equal to ωTHNs when ωTH is known. When ωTH is unknown, one can take a sample of size n, not bigger than Ns, estimate ωTH by a good estimator ωn, and set w equal to ωnNs. Let Rn = Kp2N2s/n + Ksn be a measure of loss, where Ke and Ks are the coefficients representing the cost of the error in estimation and the cost of the sampling respectively, and p is the coefficient of variation for the weight of the items. If one determines the sample size to be the integer closest to pCNs when p is known, where C is (Ke/Ks)1/2, then Rn will be minimized. If p is unknown, a simple sequential procedure is proposed for which the average sample number is shown to be asymptotically equal to the optimal fixed sample size. When the weights are assumed to have a gamma distribution given ω and ω has a prior inverted gamma distribution, the optimal sample size can be found to be the nonnegative integer closest to pCNs + p2A(pC – 1), where A is a known constant given in the prior distribution. 相似文献
306.
Preliminary testing procedures for the two means problem traditionally employ the pooled variance t-statistic. In this paper we show that bias of the t-statistic under conditions of heterogeneity of variance may be increased if use of the t-statistic is conditional on an affirmative F-test. For this reason we conclude that use of the t-statistic in preliminary testing procedures is inappropriate. 相似文献
307.
孙明泽 《重庆工商大学学报(社会科学版)》2018,35(2):77-82
违法所得没收程序的证据与证明问题是该程序在运作过程中遇到的最大问题,该程序的证明问题涉及证明对象、证明责任和证明标准等.违法所得没收程序的证明对象应当包括犯罪嫌疑人、被告人死亡或者逃匿且通缉后一年未能到案的事实、拟被没收的财物属于违法所得以及拟没收的财物不属于利害关系人的合法财产.违法所得没收程序的证明标准应当分主体进行讨论,不同主体证明的要求不同;同时违法所得没收程序的证明标准应当分阶段讨论,不同诉讼阶段也应当坚持不同的证明标准.违法所得没收程序应当确立二元制的证明责任体系,证明责任的承担应当以证明对象为基础,同时以证明标准划分不同主体的证明责任. 相似文献
308.
Several researchers have compared the effectiveness of tact or textual prompts to echoic prompts for teaching intraverbal behavior to young children with autism. We extended this line of research by comparing the effectiveness of visual (textual or tact) prompts to echoic prompts to teach intraverbal responses to three young adults with autism. An adapted alternating treatments design was used with 2 to 3 comparisons for each participant. The results were mixed and did not reveal a more effective prompting procedure across participants, suggesting that the effectiveness of a prompting tactic may be idiosyncratic. The role of one’s learning history and the implications for practitioners teaching intraverbal behavior to individuals with autism are discussed. 相似文献
309.
蔡文灿 《河北科技大学学报(社会科学版)》2008,8(4):64-68
公司集团已成为现代市场经济中大中资本普遍采用的一种企业组织形式。世界各国和地区的公司立法均对公司集团作出了有别于传统单一公司的规定。而我国对公司集团的法律规制尚处于不成熟的阶段,法律效力层次低,现有的规制在公司集团的组建条件、组建程序、内部结构、集团成员企业转投资等方面均存在一定的误区,亟需改进和完善。 相似文献