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   13858篇
  免费   431篇
  国内免费   15篇
管理学   1655篇
民族学   84篇
人才学   1篇
人口学   1207篇
丛书文集   150篇
理论方法论   1316篇
综合类   694篇
社会学   7487篇
统计学   1710篇
  2023年   75篇
  2021年   111篇
  2020年   224篇
  2019年   275篇
  2018年   343篇
  2017年   519篇
  2016年   340篇
  2015年   284篇
  2014年   328篇
  2013年   2216篇
  2012年   502篇
  2011年   487篇
  2010年   412篇
  2009年   346篇
  2008年   427篇
  2007年   441篇
  2006年   438篇
  2005年   381篇
  2004年   302篇
  2003年   270篇
  2002年   286篇
  2001年   360篇
  2000年   303篇
  1999年   290篇
  1998年   221篇
  1997年   181篇
  1996年   176篇
  1995年   186篇
  1994年   170篇
  1993年   171篇
  1992年   199篇
  1991年   187篇
  1990年   190篇
  1989年   160篇
  1988年   174篇
  1987年   196篇
  1986年   154篇
  1985年   165篇
  1984年   185篇
  1983年   153篇
  1982年   157篇
  1981年   128篇
  1980年   116篇
  1979年   126篇
  1978年   96篇
  1977年   81篇
  1976年   96篇
  1975年   110篇
  1974年   85篇
  1972年   63篇
排序方式: 共有10000条查询结果,搜索用时 390 毫秒
941.
This article provides a multivariate cross-national test of the hypothesis that national population/family planning policies have effected levels, and changes in fertility in developed nations over the past two decades. Variation is assessed in the total fertility rates (TFR) in 1978, and in the change in these rates between 1958 and 1978, among thirty developed countries. Measures include socioeconomic development, divorce, percent in consensual unions, female labor force participation, abortion policy, and level of contraceptive use by married couples and, government population/family planning policy. Seventy percent of the variation in 1978 TFR is related to the percent contracepting, female labor force, and the population/family planning policy measures. These are the only measures with significant direct effects. A longitudinal analysis of 1958 to 1978 change in TFRs is also conducted. This model increases R2 to 75%, and the three independent variables remain significant. Implications of these findings for policy makers interested in increasing or decreasing fertility rates are noted.  相似文献   
942.
943.
944.
945.
946.
947.
Let g(z) be the ratio of the ordinate and the probability integral of the distribution of a variate z. The relation g(z)~+βz is used to derive (i) estimators μr and s?r of the parameters of a truncated normal distribution and (ii) estimators μc and s?c of the mean and standard deviation of a logistic distribution from doubly censored samples. The variances and eovariances of these estimators are obtained. They are shown to be nearly as efficient as the maximum likelihood estimators and easier to compute.  相似文献   
948.
949.
Business organizations operate within a complex socio-technical environment. Interactions between these socio-technical dimensions and the managers' personal value systems are thought to influence managerial role patterns and decisions. This paper investigates shifts in perceived importance of “social goals” from a set of organizational goals. The research concludes that there has been no significant changes occurring in either the ordering or the clustering of organizational goals.  相似文献   
950.
Loss of a child is a severe trauma to the members of any family. Although the reactions of parents to the loss of a child has received a considerable amount of attention in the literature, relatively little has been written about the impact of such a loss on the remaining sibling(s). The effect of sibling loss on a child is complicated by many factors; among them are the tendency of children to deny the reality of death and the feelings associated with this experience, as well as the manner in which the parents are able to cope with the loss. This article reviews the available literature and calls for more research dealing with the impact of the loss of a child on the entire family system.  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