首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   243篇
  免费   5篇
  国内免费   1篇
管理学   53篇
民族学   1篇
人口学   3篇
丛书文集   7篇
理论方法论   10篇
综合类   62篇
社会学   5篇
统计学   108篇
  2023年   2篇
  2022年   5篇
  2020年   6篇
  2019年   6篇
  2018年   11篇
  2017年   7篇
  2016年   8篇
  2015年   5篇
  2014年   9篇
  2013年   60篇
  2012年   18篇
  2011年   10篇
  2010年   8篇
  2009年   13篇
  2008年   13篇
  2007年   8篇
  2006年   5篇
  2005年   7篇
  2004年   7篇
  2003年   8篇
  2002年   6篇
  2001年   6篇
  2000年   4篇
  1999年   3篇
  1998年   2篇
  1997年   2篇
  1996年   2篇
  1992年   1篇
  1991年   1篇
  1988年   2篇
  1986年   1篇
  1985年   1篇
  1983年   1篇
  1980年   1篇
排序方式: 共有249条查询结果,搜索用时 437 毫秒
11.
Severe departures from normality occur frequently for null distributions of statistics associated with applications of mulLi-response permutation procedures (MRPP) for either small or large finite populations. This paper describes the commonly encountered situation associated with asymptotic non-normality for null distributions of MRPP statistics which does not depend on the underlying multivariate distribution. In addition, this paper establishes the existence of a non-degenerate underlying distribution for which the null distributions of MRPP statistics are asymptotically non-normal for essentially all size structure configurations. It is known that MRPP statistics are symmetric versions of a broader class of statistics, most of which are asymmetric. Because of the non-normality associated with null distributions of MRPP statistics, this paper includes necessary results for inferences based on the exact first three moments of anv statistic in this broader class (analogous to existing results for MRPP statistics).  相似文献   
12.
党的指导思想是有层次性的。从历史定位的角度看,从准确表述党的指导思想的角度考虑,从社会主义运动和社会主义思想发展队段着眼,应提出并确立"邓小平江泽民理论思想"这一范畴,并以之作为继毛泽东思想之后马克思主义在中国发展的历史新阶段和党在新世纪、在社会主义历史新阶段的指导思想。作为党的指导思想的"邓小平江泽民理论思想"是邓小平理论的历史发展和丰富升华;而作为研究对象(社会主义思想史研究、党史研究和其他学术研究),邓小平理论范畴可以继续使用,并可以使用江泽民思想范畴。  相似文献   
13.
This article introduces and discusses a new measure of the relative economic affluence (REA) between income distributions with different means. The REA measure D is applied to the U.S. white and black household income distributions of 1967 and 1979. The measure D shows that the REA of the white households with respect to the black households decreased from 1967 to 1979. This conclusion contrasts with those obtained by applications of distance or quasi-distance functions. It is shown in this study that REA measures and distance functions address different and relevant issues. An REA measure deals with the relation “more affluent than” and defines a partial strict ordering over the set of pairs of income distributions—that is, the relation is asymmetric and transitive—whereas a distance function accounts for the dissimilarity between distributions without imposing an ordering relation and hence fulfills the symmetry property.  相似文献   
14.
The author proposes inference techniques for ranked set sample data in the presence of judgment ranking errors. He bases his analysis on the models of Bohn & Wolfe (1994) and Frey (2007a, b), of which parameters are estimated by minimizing a distance measure. He then uses the fitted models to calibrate confidence intervals and tests. He shows the validity of his approach through simulation and illustrates its application through the construction of distribution‐free confidence intervals for the median area of apple tree leaves covered by a spray.  相似文献   
15.
我国资信评估业发展中存在的问题及对策   总被引:1,自引:0,他引:1  
目前 ,我国资信评估业经过十余年的发展 ,仍然存在着资信评估机构缺乏自主性 ,未能做到独立运行 ,资信评估效应不显著 ,资信评估指标不统一 ,方法各异等需要解决的问题。尤其是在我国加入WT0后 ,加快发展我国的资信评估业具有极其深刻的现实意义  相似文献   
16.
采用文献资料调研法、问卷调查法、数理统计法等研究方法,对山西省高校高水平运动员学籍管理现状进行了研究与分析。研究结果表明:山西高校所招收的高水平运动员都能按照各校学籍管理规定按时完成入学与注册手续的办理,但是部分学校存在高水平运动员的"挂靠"现象;在成绩的考核与记载方面,山西大部分高校对运动员大学生都采用插班教学,与普通大学生使用相同的教学大纲、教学进度,在考试时使用相同的试卷,在成绩记载时依据体育竞赛的成绩给予相应加分的办法。  相似文献   
17.
庄赟 《统计教育》2010,(7):16-20
关于提升大学综舍排名的竞争策略,可以运用累积Logit模型来研究各评价指标排名对大学综合排名的影响效应,通过提高那些对综合排名影响效应较大的指标排名,能更有效地促进综合排名的提高,从而确定有效的排名竞争策略。利用网大(www.netbig.com)“中国大学排行榜”的排名数据进行实证分析,得出排名越靠前的大学通过提升“声誉”和“学术成果”名次能最有效提升综合排名。而排名越靠后的大学则通过提升“学术资源”和“物资资源”名次能最有效提升综合排名等结论。  相似文献   
18.
优选论通过制约条件的排列顺序,不仅可以说明不同语言之间的差异,同时还可以说明同一语言内不同环境中所产生的变异现象。舌尖音的标记性比唇音和软腭音的标记性低,因此,英语中舌尖音经常被脱落的现象,也可以在优选论框架中用标记性层级关系来说明。  相似文献   
19.
This article presents an approach to the problem of terrorism risk assessment and management by adapting the framework of the risk filtering, ranking, and management method. The assessment is conducted at two levels: (1) the system level, and (2) the asset-specific level. The system-level risk assessment attempts to identify and prioritize critical infrastructures from an inventory of system assets. The definition of critical infrastructures offered by Presidential Decision Directive 63 was used to determine the set of attributes to identify critical assets--categorized according to national, regional, and local impact. An example application is demonstrated using information from the Federal Highway Administration National Bridge Inventory for the State of Virginia. Conversely, the asset-specific risk assessment performs an in-depth analysis of the threats and vulnerabilities of a specific critical infrastructure. An illustration is presented to offer some insights in risk scenario identification and prioritization, multiobjective evaluation of management options, and extreme-event analysis for critical infrastructure protection.  相似文献   
20.
The Oregon Department of Environmental Quality has developed a Cross-Media Comparative Risk Assessment model to address certain regulatory concerns. The model generates a Human and Ecological Risk Index for a facility releasing toxins into the environment. The risk indices are based on chemical fate and transport predictions, toxicity, population density, and ecological sensitive areas. The model can be used to rank facilities for inspection or as a tool to assess the progress of pollution prevention programs. Regulatory permitting departments can use the model to address the cross-media transfer of pollutants from one environmental compartment to another. The versatility of the model allows adaptation to each specific users needs.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号