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   91119篇
  免费   2933篇
  国内免费   3篇
管理学   12353篇
民族学   555篇
人才学   25篇
人口学   7158篇
丛书文集   526篇
教育普及   2篇
理论方法论   9434篇
现状及发展   1篇
综合类   2172篇
社会学   42950篇
统计学   18879篇
  2023年   503篇
  2021年   565篇
  2020年   1506篇
  2019年   2209篇
  2018年   2119篇
  2017年   3169篇
  2016年   2380篇
  2015年   2035篇
  2014年   2632篇
  2013年   18836篇
  2012年   2467篇
  2011年   2243篇
  2010年   2014篇
  2009年   2218篇
  2008年   2120篇
  2007年   1915篇
  2006年   2125篇
  2005年   2323篇
  2004年   2205篇
  2003年   1925篇
  2002年   2020篇
  2001年   2033篇
  2000年   1805篇
  1999年   1700篇
  1998年   1509篇
  1997年   1361篇
  1996年   1313篇
  1995年   1338篇
  1994年   1322篇
  1993年   1291篇
  1992年   1303篇
  1991年   1229篇
  1990年   1202篇
  1989年   1037篇
  1988年   1125篇
  1987年   1006篇
  1986年   913篇
  1985年   1079篇
  1984年   1137篇
  1983年   1017篇
  1982年   944篇
  1981年   863篇
  1980年   821篇
  1979年   867篇
  1978年   776篇
  1977年   711篇
  1976年   657篇
  1975年   638篇
  1974年   516篇
  1973年   441篇
排序方式: 共有10000条查询结果,搜索用时 625 毫秒
721.
722.
This study examines the effect of unionization, right-to-work laws, and participation of women in the labor force on income inequality. Two distinct models are developed using 1970 and 1980 census data on the 50 states in the U.S. First, an income inequality model is specified as a beta distribution of the second kind to estimate Gini measures of income inequality. Second, these Gini estimates are used in a simultaneous equations model. The 1970 results indicate that higher unionization rates decreased inequality while right-to-work laws increased inequality. In 1980, the measure of inequality was lower in states with higher female labor force participation. We thank an unknown referee and the editor for comments and criticisms that greatly improved the paper. The usual caveat applies.  相似文献   
723.
Although surveys are extensively used in sociology, there has been a relative neglect of the effect of task definition upon results obtained. The present article examines the effects of one such task variable, length and specificity of the cue, on response sets concerning the frequency and quantity of alcohol consumed. In one survey format, respondents were asked to report the average number of days drinking per month, and the average number of drinks consumed on each of these occasions. In the second format, questions concerning the monthly frequency of alcohol consumption and quantity consumed were decomposed by twelve drinking locations. The results indicate dramatic increases both in terms of frequency and quantity between the two questionnaire formats. Implications of these results are discussed within the framework of the methodological phenomena of telescoping and the social psychological tendency to under-report threatening behaviors.  相似文献   
724.
725.
This study investigates the extent and nature of housing affordability for elderly nonmetropolitan female heads of household using data from the Panel Study of Income Dynamics. The results indicate that over one-third of elderly nonmetropolitan female heads of household experience housing poverty and that those who rent, who have fair to poor health, and who are minorities are particularly vulnerable. Housing affordability, measured by the concept of housing poverty, identifies households struggling to meet basic needs while the conventional 25% of income for housing expenditures ratio identifies a larger population. The findings suggest the need for multifaceted public policies to address the problem of housing poverty. Her research interests include housing affordability, housing and community vitality, and decision making. She received her Ph.D. from Purdue University. Sooyoun Park is in the same department as a Project Assistant on a USDA-funded research project entitled “Housing Affordability in Rural Areas,” which is a joint project between Nebraska and Wisconsin. Her research interests focus on housing management behavior in relation to housing expenditure burden. She received her Ph.D. from the University of Nebraska-Lincoln.  相似文献   
726.
John T. Barr 《Risk analysis》1991,11(3):373-373
  相似文献   
727.
A growing body of empirical and theoretical research has concentrated on the overlaps and commonalities among chemical and non-chemical (behavioural) addictions. Pathological gambling has perhaps been the most widely researched behavioural addiction and some of this research has concerned the co-existing links between pathological gambling and alcohol/drug addiction in both the gambling substance abuser and the substance abusing gambler (i.e. cross addiction). This study was of an exploratory nature and attempted to gather information and data regarding gambling cross addictions in the UK. To achieve this, 456 letters were sent to all drug and alcohol helping agencies in England requesting such information. This yielded 210 returns (46% response rate). Results indicated that gambling cross addictions occur in both adults and adolescents and were almost exclusively a male condition. However, it must be noted only just over half of the responding agencies had encountered gambling cross addiction and reasons for this are speculated. Results also indicated the existence of various cross addicted subgroups including an adolescent subgroup who were addicted to fruit machines and abused solvents. Future research ideas are also discussed.A more detailed version of this paper is available from the author on request.  相似文献   
728.
729.
730.
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