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   19508篇
  免费   470篇
  国内免费   1篇
管理学   2597篇
民族学   84篇
人才学   1篇
人口学   1802篇
丛书文集   103篇
教育普及   2篇
理论方法论   1799篇
综合类   413篇
社会学   9683篇
统计学   3495篇
  2021年   102篇
  2020年   286篇
  2019年   363篇
  2018年   408篇
  2017年   608篇
  2016年   457篇
  2015年   340篇
  2014年   405篇
  2013年   3291篇
  2012年   595篇
  2011年   521篇
  2010年   357篇
  2009年   360篇
  2008年   404篇
  2007年   413篇
  2006年   390篇
  2005年   498篇
  2004年   436篇
  2003年   398篇
  2002年   416篇
  2001年   468篇
  2000年   454篇
  1999年   463篇
  1998年   337篇
  1997年   322篇
  1996年   324篇
  1995年   295篇
  1994年   303篇
  1993年   277篇
  1992年   344篇
  1991年   348篇
  1990年   327篇
  1989年   341篇
  1988年   269篇
  1987年   279篇
  1986年   268篇
  1985年   276篇
  1984年   293篇
  1983年   290篇
  1982年   230篇
  1981年   211篇
  1980年   202篇
  1979年   237篇
  1978年   208篇
  1977年   174篇
  1976年   166篇
  1975年   154篇
  1974年   140篇
  1973年   139篇
  1971年   97篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
241.
This research note briefly outlines International Labour Organization concerns about return migration in developing countries, research being done in the field, and activities in related fields. Attention is being focused on the following topics and areas of study: 1) recommendations and conventions which cover workers generally and migrant workers particularly; 2) measures to avoid the departure of skilled workers from developing countries; 3) special problems encountered in improving migrant professionals' working conditions; 4) developing a central pool of information on labor markets and employment at the international level; 5) bilateral or multilateral migration agreements to optimize the flows of health personnel, scientific workers, engineers, and high level technicians, protecting their rights, and facilitating their reintegration into the country of origin; 6) creating a compensation scheme for skill outflows and training substitutes to fill the gaps left behind by migration; 7) classifying migratory policies adopted by developing countries; 8) reattraction of needed skills to developing countries of origin; 9) transfer of know-how through expatriate nationals; 10) labor reinsertion patterns of migrants returning to Greece, Italy, Portugal, and Spain; 11) Socioeconomic reintegration of migrants returning to Pakistan and Uruguay; and 12) Sri Lanka's experience with self-employment schemes for returned migrants.  相似文献   
242.
The author focuses on characteristics of Polish immigrants in Minnesota in the years since World War II. Particular attention is given to the immigrants' adaptation to the American way of life and to democratic institutions after being accustomed to centralized power in a socialist system. "This article is based on participant observation, publications concerning immigration to the United States, and unstructured interviews with newcomers from Poland and other Eastern European countries." Distinctions are made among the characteristics of Polish-Americans, pre-World War II immigrants, war immigrants, and those who have come during the last 20 years, including groups that the author identifies as the "calculated-decision" immigrants, the post-Solidarity immigrants, and the "adjusted visitor" immigrants. Consideration is given to the demographic characteristics, legal status, education and employment, and territorial mobility of 35 Poles living in Minnesota who were interviewed by the author. (SUMMARY IN FRE AND SPA)  相似文献   
243.
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   
244.
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   
245.
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   
246.
247.
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   
248.
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   
249.
"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   
250.
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   
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