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   2739篇
  免费   130篇
管理学   329篇
民族学   38篇
人口学   378篇
丛书文集   10篇
理论方法论   203篇
综合类   64篇
社会学   1280篇
统计学   567篇
  2024年   4篇
  2023年   43篇
  2022年   27篇
  2021年   48篇
  2020年   115篇
  2019年   146篇
  2018年   194篇
  2017年   216篇
  2016年   184篇
  2015年   97篇
  2014年   151篇
  2013年   526篇
  2012年   175篇
  2011年   103篇
  2010年   90篇
  2009年   78篇
  2008年   82篇
  2007年   66篇
  2006年   49篇
  2005年   46篇
  2004年   47篇
  2003年   35篇
  2002年   48篇
  2001年   26篇
  2000年   26篇
  1999年   25篇
  1998年   22篇
  1997年   16篇
  1996年   19篇
  1995年   13篇
  1994年   13篇
  1993年   7篇
  1992年   12篇
  1991年   9篇
  1990年   11篇
  1989年   9篇
  1988年   8篇
  1987年   7篇
  1986年   9篇
  1985年   9篇
  1984年   8篇
  1983年   10篇
  1982年   6篇
  1981年   8篇
  1980年   3篇
  1979年   3篇
  1978年   3篇
  1975年   4篇
  1969年   2篇
  1968年   3篇
排序方式: 共有2869条查询结果,搜索用时 15 毫秒
121.
122.
VOLUNTAS: International Journal of Voluntary and Nonprofit Organizations - While many scholars have postulated the decline of membership influence as an important consequence of the...  相似文献   
123.
Qualitative Sociology -  相似文献   
124.
Social Indicators Research -  相似文献   
125.
Abstract. The paper deals with present, demographically-based problems in highly-developed labour markets, with special reference to the Belgian and Dutch experience. Both sluggish inflow by young cohorts and early retirement by senior workers are analysed. The first of these phenomena can be explained by the falling birth rate and increasing educational levels; the second phenomenon is the result of technological changes in the labour market and a social security system which offers attractive opportunities for early outflow. For companies, this trend translates into a loss of experience and a loss of corporate culture. On top of this, the social security system is coming under heavy pressure and scarcity symptoms are likely to develop on the supply side of the labour market.  相似文献   
126.
The existing literature on the determinants of income redistribution has identified a ‘paradox’. Namely, that countries with a high degree of market income inequality redistribute little, which is in disagreement with the median voter theorem. In a first step, this paper outlines several mechanisms that explain why government corruption might be partially responsible for this ‘paradox’. In a second step, different corruption perception indices and an instrumental variable approach are used to provide empirical evidence that indicates a significant negative impact of corruption on redistribution levels for a sample of 148 developing and developed countries. This finding suggests that, next to political and need factors, government corruption explains to some extent the ‘paradox of redistribution’. This is especially true for many developing countries, given that they typically have relatively high degrees of corruption and low levels of redistribution.  相似文献   
127.
Population aging in developed countries has created new challenges to improve the well-being of individuals at different age cohorts. This issue is especially significant for Southern European countries, were aging societies have worse health and less socio-economic resources. The aim of this study is to contribute to this body of literature and to estimate the effect of aging on quality of life of oldest people. This paper uses the latest available data (6th wave) from the Survey on Health, Ageing and Retirement in Europe (SHARE). Specifically, robust ordinary least squares and multilevel regressions are employed to analyse the effects of socioeconomic, health, and community factors on quality of life among the oldest population for Southern European countries. Our findings confirm the significance of several factors on life satisfaction among the oldest population in this group of countries. Moreover, we show that the determinants which are correlated with quality of life include predisposing, health, geographic area and social isolation factors.  相似文献   
128.
129.

Aim

To assess the relationship between the duration of the second stage of labour and postpartum anaemia during vaginal birth.

Methods

An observational, analytical retrospective cohort study was performed at the “Mancha-Centro Hospital” (Spain) during the 2013–2016 period. Data were collected from 3437 women who had a vaginal birth. Postpartum anaemia was defined as a haemoglobin level below 11 g/dL at 24 h postpartum. A univariate analysis was used for potential risk factors and a multivariate analysis with binary logistic regression to control for possible confounding factors.

Findings

The incidence of postpartum anaemia was 42.0%. The risk of postpartum anaemia did not increase in nulliparous women whose duration of the second stage of labour exceeded 4 h. Compared with multiparous women who delivered between 0 and 3 h, multiparous women with a duration of the second stage of labour beyond 3 h were at higher risk of postpartum anaemia (OR = 2.43 [1.30–4.52]).

Conclusion

The duration of the second stage of labour beyond 4 h is safe for postpartum anaemia in nulliparous women. However in multiparous women, monitoring should increase if the second stage of labour exceeds 3 h given the increased risk of postpartum anaemia.  相似文献   
130.
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