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   149152篇
  免费   3650篇
  国内免费   1505篇
管理学   2665篇
劳动科学   29篇
民族学   2564篇
人才学   20篇
人口学   2019篇
丛书文集   20710篇
理论方法论   6398篇
综合类   110073篇
社会学   4478篇
统计学   5351篇
  2024年   234篇
  2023年   715篇
  2022年   1056篇
  2021年   1172篇
  2020年   1494篇
  2019年   1392篇
  2018年   1430篇
  2017年   1796篇
  2016年   1994篇
  2015年   2819篇
  2014年   7048篇
  2013年   8032篇
  2012年   8750篇
  2011年   10422篇
  2010年   8536篇
  2009年   8801篇
  2008年   9294篇
  2007年   11803篇
  2006年   11996篇
  2005年   11177篇
  2004年   10510篇
  2003年   10323篇
  2002年   8202篇
  2001年   6908篇
  2000年   3919篇
  1999年   1128篇
  1998年   568篇
  1997年   455篇
  1996年   387篇
  1995年   336篇
  1994年   245篇
  1993年   194篇
  1992年   174篇
  1991年   130篇
  1990年   75篇
  1989年   72篇
  1988年   73篇
  1987年   26篇
  1986年   28篇
  1985年   102篇
  1984年   105篇
  1983年   72篇
  1982年   68篇
  1981年   59篇
  1980年   50篇
  1979年   53篇
  1978年   48篇
  1977年   16篇
  1976年   12篇
  1975年   6篇
排序方式: 共有10000条查询结果,搜索用时 16 毫秒
41.
The authors examine the effect of premarital cohabitation on the division of household labor in 22 countries. First, women do more routine housework than men in all countries. Second, married couples that cohabited before marriage have a more equal division of housework. Third, national cohabitation rates have equalizing effects on couples regardless of their own cohabitation experience. However, the influence of cohabitation rates is only observed in countries with higher levels of overall gender equality. The authors conclude that the trend toward increasing cohabitation may be part of a broader social trend toward a more egalitarian division of housework.  相似文献   
42.
浅谈时政新闻出新意   总被引:3,自引:0,他引:3  
时政新闻 ,即关于时事、政治方面的新闻报道。其突出特点是 :题材重大 ,参与者层次高 ,场面隆重、盛大、严肃。采、拍、编人员要把握住其特点 ,抓住采访工作的各个环节 ,充分发挥电视媒体的特长 ,即选择好的细节 ,合理地增加长镜头的运用 ,注重同期声的录制 ,时政新闻是可以出好新闻的  相似文献   
43.
文艺复兴与天主教   总被引:2,自引:0,他引:2  
资产阶级的新文化运动文艺复兴与封建主义意识形态的主要代表天主教之间 ,由于社会现实的巨大变化和诸多的文化因素 ,不仅有对立和抗争 ,而且有传承乃至合作 ,不仅有变异而且有遗传 ,不仅有本质差别 ,而且有血脉相连  相似文献   
44.
从篇章语言学的角度看 ,英文段落依层级的概括性推展 ,并呈典型的直线性发展模式。英文作者主要利用词汇相等链、链式结构和编列结构衔接段中各语句来推展段落 ,从而使段落具有交际功能。英文语篇结构模式对英文习得者来说具有实际指导意义  相似文献   
45.
瓦尔登湖畔的圣贤:梭罗与孔孟之道   总被引:1,自引:0,他引:1  
美国“超验主义”作家梭罗生前一直很少为人所知 ,2 0世纪 90年代中国读者才真正开始对他关注和推崇 ;梭罗简单而馥郁的一生 ,尤其是他在瓦尔登湖进行简化生活 ,回归自然的人生实验赢得了人们的尊敬和向往 ,在他的身上不仅洋溢着美国精神 ,还闪烁着中国古老文明的异彩 ,他的精神源泉可以追溯到孔子、颜回那里 ;梭罗、瓦尔登湖和孔孟之道的奇妙相融 ,很象是一个神话 ,一个美丽的传说 ,它将在中美文化交流的史册上永远流传  相似文献   
46.
The small sample performance of least median of squares, reweighted least squares, least squares, least absolute deviations, and three partially adaptive estimators are compared using Monte Carlo simulations. Two data problems are addressed in the paper: (1) data generated from non-normal error distributions and (2) contaminated data. Breakdown plots are used to investigate the sensitivity of partially adaptive estimators to data contamination relative to RLS. One partially adaptive estimator performs especially well when the errors are skewed, while another partially adaptive estimator and RLS perform particularly well when the errors are extremely leptokur-totic. In comparison with RLS, partially adaptive estimators are only moderately effective in resisting data contamination; however, they outperform least squares and least absolute deviation estimators.  相似文献   
47.
This paper suggests a direction for the exploration of the causes of family violence. Explanatory models of family violence were considered in this regard, with the recommendation that a multi-determined model should be considered to ensure the most accurate explanation. We suggest that family violence will be best understood and prevented or alleviated, if a model is used that considers the interaction of structural violence and the personality features of all the family members.  相似文献   
48.
This note exhibits two independent random variables on integers, X1 and X2, such that neither X1 nor X2 has a generalized Poisson distribution, but X1 + X2 has. This contradicts statements made by Professor Consul in his recent book.  相似文献   
49.
This paper is concerned with cases in which patients who have been well established in treatment decide to end it prematurely. In examining the issue among my patients who left against my advice, I isolated in some of them a number of common traits, of which the existence of a long-standing idealizing transference was central. Four of these cases are presented, including two in which the resistance was successfully penetrated and two in which it was not and the patient left treatment. The definition of premature termination is seen in the context of that of a complete analysis.  相似文献   
50.
Abstract.  We consider the problem of estimating a compactly supported density taking a Bayesian nonparametric approach. We define a Dirichlet mixture prior that, while selecting piecewise constant densities, has full support on the Hellinger metric space of all commonly dominated probability measures on a known bounded interval. We derive pointwise rates of convergence for the posterior expected density by studying the speed at which the posterior mass accumulates on shrinking Hellinger neighbourhoods of the sampling density. If the data are sampled from a strictly positive, α -Hölderian density, with α  ∈ ( 0,1] , then the optimal convergence rate n− α / (2 α +1) is obtained up to a logarithmic factor. Smoothing histograms by polygons, a continuous piecewise linear estimator is obtained that for twice continuously differentiable, strictly positive densities satisfying boundary conditions attains a rate comparable up to a logarithmic factor to the convergence rate n −4/5 for integrated mean squared error of kernel type density estimators.  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