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   5271篇
  免费   843篇
管理学   1109篇
民族学   22篇
人才学   1篇
人口学   277篇
丛书文集   5篇
理论方法论   891篇
综合类   43篇
社会学   3079篇
统计学   687篇
  2023年   26篇
  2022年   12篇
  2021年   95篇
  2020年   182篇
  2019年   387篇
  2018年   188篇
  2017年   302篇
  2016年   357篇
  2015年   328篇
  2014年   307篇
  2013年   698篇
  2012年   309篇
  2011年   289篇
  2010年   246篇
  2009年   207篇
  2008年   246篇
  2007年   217篇
  2006年   214篇
  2005年   173篇
  2004年   181篇
  2003年   155篇
  2002年   116篇
  2001年   124篇
  2000年   112篇
  1999年   67篇
  1998年   42篇
  1997年   26篇
  1996年   40篇
  1995年   27篇
  1994年   39篇
  1993年   26篇
  1992年   31篇
  1991年   31篇
  1990年   24篇
  1989年   30篇
  1988年   26篇
  1987年   17篇
  1986年   20篇
  1985年   14篇
  1984年   17篇
  1983年   16篇
  1982年   16篇
  1981年   13篇
  1980年   17篇
  1979年   21篇
  1978年   16篇
  1976年   9篇
  1975年   7篇
  1974年   8篇
  1971年   5篇
排序方式: 共有6114条查询结果,搜索用时 406 毫秒
51.
Mothers' time‐use patterns were compared in families in which infants spent more than 30 hours per week in child care (In‐Care group; n= 143) versus 0 hours per week (At‐Home group; n= 183) from birth to 6 months of age. In‐Care group mothers spent about 12 fewer hours per week interacting with their infants, for about 32% less time; fathers of these infants were more involved in caregiving. The groups did not differ in the quality of mother‐infant interaction. In the In‐Care group, quantity of interaction was related to greater separation anxiety and concerns about effects of maternal employment. Time‐use data were not related to child outcomes at 15 months of age. Results suggest that the effect of extensive time spent apart on the quantity and quality of mother‐infant interaction may be smaller than anticipated.  相似文献   
52.
Toddlers' knowledge of the stereotyping of traditionally feminine and masculine household activities was examined using the preferential looking paradigm. Seventy‐seven 24‐month‐old infants observed a series of 9 pairs of photographs, each portraying a male and female adult engaged in the same stereotyped or gender‐neutral activity (e.g., ironing, hammering, or reading). Longer looking times were predicted on stimuli inconsistent with gender stereotypes (e.g., looking longer at the man putting on lipstick than at the woman). The results suggested that toddlers have acquired some knowledge of the gender stereotyping of feminine activities by their 2nd birthday.  相似文献   
53.
Conclusion The Independent Sector approach to measuring the US non-profit sector, as summarised inThe Almanac, provides a valuable and instructive model for European and other attempts to describe and measure the sector. The aim of mappers in those other countries should not be to replicateThe Almanac, but to imitate its broad approach, using it to stimulate and encourage statistical efforts elsewhere. Although the time for whole-Europe mappings has not yet come — in fact, it is very many years away — individual European countries could and should make substantial progress. As I have argued, progress will generally be greatest when an imaginative blend of five main approaches is employed. This is exemplified by the Independent Sector's work, and would-be mimics should endeavour to match both this blending and the energy and zest with which the task has been tackled.Professor of the Economics of Social Care and Deputy Director of the Personal Social Services Research Unit, University of Kent at Canterbury and Co-editor,Voluntas.I would like to acknowledge a number of European colleagues whose comments assisted my preparation of this paper, in particular Edith Archambault, Paulo Barbetta, Andrea Bassi, Rudolph Bauer, Andrew Crook, Jim Jackson, Jeremy Kendall, Éva Kuti, Susan Saxon-Harrold, Wolfgang Seibel, Justin Davis Smith and Tymen van den Ploeg. This paper is lodged in the Personal Social Services Research Unit as Discussion Paper 873.  相似文献   
54.
In this paper it is shown that several models for a bivariate nonstationary quarterly time series are nested in a vector autoregression with cointegration restrictions for the eight annual series of quarterly observations. Or, the Granger Representation Theorem is extended to incorporate, e.g., seasonal and periodic cointegration.  相似文献   
55.
Daughters from low‐income families who did not receive Aid to Families with Dependent Children (AFDC) are compared to daughters from low‐income families who did receive assistance to better account for family income in the intergenerational association of AFDC. The research models the timing of a daughter's first birth and, for those who become mothers, the number of years a daughter receives any AFDC. Women whose families received AFDC during their childhood are more likely to receive AFDC as adults relative to those women whose families did not receive AFDC. Controlling for family income in a more careful and comprehensive way than past research explains part but not all of the effects of childhood AFDC receipt. Among daughters from chronically poor families, however, parental AFDC use is not associated with additional years of AFDC participation. Although the present research cannot confirm or deny a causal role for parental welfare use, the intergenerational transmission of financial resources does explain part of the intergenerational association of welfare use.  相似文献   
56.
57.
This article contributes to the ongoing debate on the economic determinants of fertility behavior by addressing the role of job insecurity in couples’ intentions concerning parenthood and its timing. It starts from the hypothesis that cultural values moderate individuals’ reactions to job insecurity and the way it is related to family formation. With a systematic thematic content analysis of a set of semi-structured interviews with childless men and women around the age of 30 in eastern and western Germany, we are able to show that there are substantial differences in the consequences of job insecurity on intentions to have a first child. In western Germany, a relatively secure job career is expected to precede family formation, and this sequence of transitions is rather rigid, whereas in eastern Germany job security and family formation are thought of and practiced as parallel investments. We suggest that the lack of convergence in family formation patterns between eastern and western Germany after the unification of the country in 1990 is partially related to different attitudes toward job insecurity in the two contexts.  相似文献   
58.
Book reviews     
Statistical Papers -  相似文献   
59.
Micro‐enterprises, i.e. firms with less than 10 employees, are traditionally the hardest to engage in learning; they are also least likely to participate in such measures as business advice and guidance provision and initiatives to support information communication technology (ICT) adoption. Through a community‐based initiative initially targeting parents (unemployed or employed) to participate in ICT, 30 micro‐enterprises were attracted to learning for the first time. These companies had carefully avoided similar initiatives taking place locally, which emphasized business success and growth; they had only participated in this ICT skills training because of their children. The paper takes a case study approach to evaluate the reasons for participation, explores barriers and implications for those organizing similar activities, and calls for a more holistic view of owners and managers of small firms as fathers, mothers, etc. rather than just as ‘entrepreneurs’.  相似文献   
60.
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