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   9913篇
  免费   214篇
  国内免费   20篇
管理学   1391篇
民族学   43篇
人口学   1080篇
丛书文集   43篇
理论方法论   788篇
综合类   311篇
社会学   4342篇
统计学   2149篇
  2020年   122篇
  2019年   180篇
  2018年   194篇
  2017年   309篇
  2016年   259篇
  2015年   182篇
  2014年   196篇
  2013年   1556篇
  2012年   410篇
  2011年   330篇
  2010年   214篇
  2009年   175篇
  2008年   246篇
  2007年   237篇
  2006年   200篇
  2005年   712篇
  2004年   418篇
  2003年   277篇
  2002年   186篇
  2001年   264篇
  2000年   198篇
  1999年   150篇
  1998年   138篇
  1997年   128篇
  1996年   126篇
  1995年   110篇
  1994年   83篇
  1993年   127篇
  1992年   138篇
  1991年   127篇
  1990年   130篇
  1989年   111篇
  1988年   107篇
  1987年   111篇
  1986年   100篇
  1985年   86篇
  1984年   117篇
  1983年   98篇
  1982年   95篇
  1981年   64篇
  1980年   94篇
  1979年   106篇
  1978年   74篇
  1977年   83篇
  1976年   71篇
  1975年   87篇
  1974年   68篇
  1973年   55篇
  1972年   62篇
  1971年   53篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
131.
This article is offered in a nod to all those readers who have been exposed to "whole brain" theory, either through the American College of Physician Executives or elsewhere. As managers struggle with balancing the "left brain" and "right brain" aspects of their work, the author says, they might consider exploiting a third area of activity, or inactivity--the "no brain." This center position can be especially effective in dealing with the high-technology aspects of delivering health care.  相似文献   
132.
133.
The biotechnical "revolution" has fast come upon us. It promises to produce both substantial benefits and difficult dilemmas for individuals and society. Despite the growing attention being paid to biotechnology, a major unanswered question is who shall control the development and use of the powerful array of human genetic and reproductive innovations. Should the decisions be left to individual consumers and private industry or should they be made by the government or other social institutions? After briefly reviewing development in human genetics and reproduction and describing trends toward commercialization of them, this article discusses the dilemmas these trends raise for a democratic society. It argues for the urgent need to delineate societal goals and priorities for the future and for technology assessment as early as possible in the developmental process. The article concludes by presenting some examples of the social policy problems now emerging.  相似文献   
134.
135.
136.
Abstract As fertility comes increasingly under voluntary control in a developing society, it can be argued that individual desires or preferences about children will become more salient and more significant for eventual fertility. Hence, the study of preferences is increasingly important as contraceptive use is extended and results in decreasing the number of unwanted births.(1) Further changes in fertility then depend on changes in preferences. The assumption is that people will at least try to achieve the families they want, if the means to do so are available. The fact that contraception is used at all is some evidence of the soundness of this assumption, although it should be recognized that family size desires operate in a complex of preferences, under varying degrees of conflict and control. To expect a one-to-one relationship between attitudes or preferences and overt behaviour would be simplistic.  相似文献   
137.
138.
139.
Rural household survey data in the Ludhiana district of the Indian Punjab was used to study the nature and role of remittances in rural development. Of the 1646 outmigrants from the area since 1961, the 949 women who migrated for marriage and children under 12 years old were excluded from the study. Nearly all husbands who outmigrated had sent remittances. Parents and grandparents were 2nd and 3rd most likely to remit, but their numbers were small. Education did not correlate with remittance. Distance and time since emigration did not affect remittance. The frequency and the size of remittances are discussed. Remittances to outmigrants were insignificant. The remittances from outmigrants seem to raise the incomes and the levels of living of rural households. The remittances serve the purpose of redistributing income from urban to rural areas. Remittances also widened the gap between rich and poor in the rural areas because the better-off groups were more likely to receive remittances than the poorer groups. Most of the money sent from outmigrants was spent on consumable goods, food and clothing. Only a small proportion was spent on productive investment. This was usually done by farming families who invested in land or farm necessities. It is concluded that remittances from outmigrants can have a positive effect on the rural economies. Investment opportunities for nonagricultural families must be provided.  相似文献   
140.
Finding a suitable respondent at home is an essential and expensivecomponent of a household survey. This article reports on theresults of a study of the probabilities of finding someone aged14 or older at home and discusses the application of such datato survey design and budgeting.  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