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   6025篇
  免费   193篇
  国内免费   58篇
管理学   274篇
民族学   64篇
人口学   28篇
丛书文集   678篇
理论方法论   270篇
综合类   3928篇
社会学   320篇
统计学   714篇
  2024年   15篇
  2023年   46篇
  2022年   46篇
  2021年   67篇
  2020年   86篇
  2019年   111篇
  2018年   130篇
  2017年   128篇
  2016年   125篇
  2015年   141篇
  2014年   335篇
  2013年   540篇
  2012年   405篇
  2011年   392篇
  2010年   367篇
  2009年   360篇
  2008年   356篇
  2007年   426篇
  2006年   402篇
  2005年   398篇
  2004年   332篇
  2003年   293篇
  2002年   241篇
  2001年   190篇
  2000年   113篇
  1999年   33篇
  1998年   19篇
  1997年   27篇
  1996年   30篇
  1995年   25篇
  1994年   22篇
  1993年   14篇
  1992年   8篇
  1991年   6篇
  1990年   9篇
  1989年   10篇
  1988年   5篇
  1987年   3篇
  1986年   1篇
  1985年   3篇
  1984年   6篇
  1983年   4篇
  1982年   1篇
  1981年   2篇
  1979年   1篇
  1977年   1篇
  1975年   1篇
排序方式: 共有6276条查询结果,搜索用时 0 毫秒
101.
阿尔弗雷德·塞耶·马汉在其代表作《海权对历史的影响,1660—1783}中,奠定了“海权论”的基础:1.海权在一个民族和国家的形成过程中扮演了极其重要的角色;2.海权体系由各机构、设施、商船和海军舰队所组成;3.在国家各种力量中,海军是最重要的力量;4.海军的战略目标是在一场决战中打垮敌方舰队,夺取“制海权”;5.海军是美国争霸世界的基础。  相似文献   
102.
心理学研究中的权力被认为是一种权力感。权力感是一种对他人影响的知觉,在这一概念中权力被外部刺激唤起。研究选择行为反应和ERP技术相结合的手段,采用经过评定的、舍有权力意义的动词和名词,唤起参与者的权力感。通过对参与者不同权力感水平下的脑电特点进行分析,探索权力感产生的神经机制,实现了权力感启动效果评估的精确性。研究发现,大学生对权力词汇词性涵义的加工过程迅速、自发,对于早期ERP正成分,名词诱发的EPP波幅比动词更大,EPP潜伏期在右侧额区比左侧额区更短;大学生高低权力词汇唤起的N300和N400波幅存在显著差异,与高权力词汇有关的脑电成分主要在左侧额区被唤起。  相似文献   
103.
This article attempts to articulate and re-validate the unique social contributions of marginalized and working women to their communities and to society-at-large, contributions which tend to be obscured if not forgotten, given the global dynamics of exclusion as they are at work in the capitalist society of Hong Kong. It looks at how a group of disenfranchised women workers renegotiate their identity, reclaim their dignity and regenerate social power through a community arts project ‘Quilting the Power and Identity’; that is, how through these creative but powerful actions, their transformation from a transient state of imposed victimhood into active agency could be made possible.  相似文献   
104.
陈文明 《唐都学刊》2013,29(3):98-101
延安整风运动的宪政内涵、制约权力和保障权利思想,对于密切党群关系和建立新政权发挥了重要的作用,同时运动中存在的程序上和制度层面的缺憾也对后世有消极影响。当今中国特色社会主义宪政建设要吸取延安整风运动的经验教训,既要依靠法律和制度,加强对国家机关的制约和监督;同时创造条件,依法保障公民的批评权。  相似文献   
105.
In 1935, R.A. Fisher published his well-known “exact” test for 2x2 contingency tables. This test is based on the conditional distribution of a cell entry when the rows and columns marginal totals are held fixed. Tocher (1950) and Lehmann (1959) showed that Fisher s test, when supplemented by randomization, is uniformly most powerful among all the unbiased tests UMPU). However, since all the practical tests for 2x2 tables are nonrandomized - and therefore biased the UMPU test is not necessarily more powerful than other tests of the same or lower size. Inthis work, the two-sided Fisher exact test and the UMPU test are compared with six nonrandomized unconditional exact tests with respect to their power. In both the two-binomial and double dichotomy models, the UMPU test is often less powerful than some of the unconditional tests of the same (or even lower) size. Thus, the assertion that the Tocher-Lehmann modification of Fisher's conditional test is the optimal test for 2x2 tables is unjustified.  相似文献   
106.
近年来周王权力问题颇受学界关注,大量成果问世。本文旨在回顾东周时期周王权力的情况,简评这一问题的研究现状,并提出对此问题的一些思考。  相似文献   
107.
The following personal reflections are in honour of Michael and all that he contributed to our lives. And, we honour Brigitte a key member of the group who died in 2006. Mem, Sue and Veronica, December 2008.  相似文献   
108.
Public and political opposition have made finding locations for new nuclear power plants, waste management, and nuclear research and development facilities a challenge for the U.S. government and the nuclear industry. U.S. government-owned properties that already have nuclear-related activities and commercial nuclear power generating stations are logical locations. Several studies and utility applications to the Nuclear Regulatory Commission suggest that concentrating locations at major plants (CLAMP) has become an implicit siting policy. We surveyed 2,101 people who lived within 50 miles of 11 existing major nuclear sites and 600 who lived elsewhere in the United States. Thirty-four percent favored CLAMP for new nuclear power plants, 52% for waste management facilities, and 50% for new nuclear laboratories. College educated, relatively affluent male whites were the strongest CLAMP supporters. They disproportionately trusted those responsible for the facilities and were not worried about existing nuclear facilities or other local environmental issues. Notably, they were concerned about continuing coal use. Not surprisingly, CLAMP proponents tended to be familiar with their existing local nuclear site. In short, likely CLAMP sites have a large and politically powerful core group to support a CLAMP policy. The challenge to proponents of nuclear technologies will be to sustain this support and expand the base among those who clearly are less connected and receptive to new nearby sites.  相似文献   
109.
The purpose of the article is, in case of one sample, to obtain tests concerning the parameter in the power series distribution in one parameter using Ku11back-Leibier information measure. The class of power series distibutions contains a host of discrete distributions. Ve illustrate the general results obtained in case of the geometric distibution.  相似文献   
110.
It is shown that the locally best invariant test for the existence of outliers for scale parameters of the gamma distribution is given by Bartholomew's test for exponentiality which is the ratio of the sum of squares of the data to the square of the sample mean. The optimality robustness, including null and nonnull robustness of the test is shown. A small simulation study to compare the power among the other eight competitive tests for testing exponentiality is performed. It is seen that the locally best invariant test is not always best but is reasonably good. It is slightly better than Cochran's test and suffers less from the limiting masking effect.  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