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   15167篇
  免费   348篇
管理学   2022篇
民族学   73篇
人才学   2篇
人口学   1310篇
丛书文集   97篇
教育普及   2篇
理论方法论   1401篇
综合类   360篇
社会学   7696篇
统计学   2552篇
  2021年   81篇
  2020年   219篇
  2019年   249篇
  2018年   292篇
  2017年   432篇
  2016年   343篇
  2015年   261篇
  2014年   310篇
  2013年   2532篇
  2012年   451篇
  2011年   406篇
  2010年   280篇
  2009年   290篇
  2008年   322篇
  2007年   358篇
  2006年   274篇
  2005年   415篇
  2004年   359篇
  2003年   320篇
  2002年   326篇
  2001年   358篇
  2000年   341篇
  1999年   351篇
  1998年   255篇
  1997年   249篇
  1996年   259篇
  1995年   237篇
  1994年   239篇
  1993年   220篇
  1992年   277篇
  1991年   278篇
  1990年   248篇
  1989年   250篇
  1988年   222篇
  1987年   218篇
  1986年   215篇
  1985年   211篇
  1984年   234篇
  1983年   239篇
  1982年   195篇
  1981年   169篇
  1980年   165篇
  1979年   192篇
  1978年   169篇
  1977年   135篇
  1976年   127篇
  1975年   118篇
  1974年   117篇
  1973年   103篇
  1971年   73篇
排序方式: 共有10000条查询结果,搜索用时 140 毫秒
191.
The authors examine the present conditions of 26 small, isolated populations living in the north of Russia. The total size of the population under consideration is 181,600, according to the 1989 Soviet census. The conclusion is that these populations are under severe threat of extinction and that there is no consensus about how to resolve their present predicament.  相似文献   
192.
This paper focuses on theories and techniques for forecasting fertility and mortality. Period and cohort analyses of fertility and mortality in Germany over the past century are first discussed. Alternative techniques for forecasting future trends in these variables in the Federal Republic of Germany are then outlined. The economic and social policy consequences of different mortality and fertility assumptions are also briefly noted.  相似文献   
193.
This study examines the possibility that estimation of the effect of breast-feeding on infant survival is affected by selection bias, in that children who are healthier at birth may be more likely to be breast-fed. Data are from the 1976 Malaysian Family Life Survey. "Ordinary logit models for breast-feeding and survival are estimated, and the results suggest that selection is indeed present. For example, children of higher birth weight appear to be more likely to be breast-fed and likely to survive. In addition, weight at birth and the duration of breast-feeding appear to be linked." Using birth weight as an indicator for the child's health, the authors conclude that "the direct influence of breast-feeding on survival remains of overwhelming importance even after corrections for selection bias are made."  相似文献   
194.
The authors describe a project, begun in 1981, to locate, list, and annotate all the published work based substantially on the census enumerators' books for nineteenth-century censuses for England and Wales. The results are currently available in a computerized file, enabling a variety of searches by topic, geographical area, and type of population. Information is provided on using the data and the computerized bibliography. The authors note that, subsequently, data for censuses of Scotland and Ireland have been added.  相似文献   
195.
The authors construct a theoretical framework for analyzing factors influencing international refugee movements. "On the basis of detailed case studies by the authors of the principal refugee flows generated in Asia, Africa, and Latin America from approximately 1960 to the present, it was found that international factors often intrude both directly and indirectly on the major types of social conflict that trigger refugee flows, and tend to exacerbate their effects. Refugees are also produced by conflicts that are manifestly international, but which are themselves often related to internal social conflict among the antagonists."  相似文献   
196.
Pivotal partings: Forced termination with a sexually abused boy   总被引:2,自引:1,他引:1  
The termination phase of therapy is an integral part of the treatment process engendering its own unique set of dynamics. However, the potential eruption of new material dislodged by the trauma of the impending loss may in some cases require a reassessment of discharge goals and consequent alteration of treatment modality. The likelihood of new material surfacing at this critical juncture is perhaps highest among the caseloads of therapist trainees, wherein the termination date is forced by the time-limited nature of the learning contract. In the following article, supervisor and trainee detail the process of therapeutic shift from a dynamic to a crisis-oriented modality in the case of a young boy whose central trauma emerged during termination.  相似文献   
197.
"I describe a course on international demography in this paper. The course enables students to use demographic concepts to understand the demographics of various countries and regions. The course involves an introduction, examination of specific geographic regions, and a concluding overview. I also describe several student projects and review available course materials."  相似文献   
198.
Contributors to disruption and dissolution of older-child adoptions   总被引:1,自引:0,他引:1  
According to recent evidence, adoptive placements that do not work out are increasingly common. This article reviews research on rates of, and contributors to, adoption and "foster-adoption" disruptions and dissolutions. Implications for practice are included.  相似文献   
199.
Computers have become commonplace in nearly every setting, from home to office. In addition to their usefulness for managerial tasks, they have the potential to aid the primary decision-making tasks of professional social service workers. The benefits and background of such "expert systems" are explored, and the structure of one experimental consulting program for child welfare workers, PLACECON, is presented.  相似文献   
200.
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