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   593篇
  免费   31篇
管理学   69篇
民族学   8篇
人口学   77篇
丛书文集   4篇
理论方法论   72篇
综合类   5篇
社会学   358篇
统计学   31篇
  2023年   5篇
  2022年   4篇
  2021年   8篇
  2020年   11篇
  2019年   20篇
  2018年   21篇
  2017年   43篇
  2016年   26篇
  2015年   20篇
  2014年   10篇
  2013年   97篇
  2012年   37篇
  2011年   23篇
  2010年   22篇
  2009年   22篇
  2008年   22篇
  2007年   18篇
  2006年   20篇
  2005年   21篇
  2004年   16篇
  2003年   15篇
  2002年   14篇
  2001年   11篇
  2000年   14篇
  1999年   6篇
  1998年   8篇
  1997年   6篇
  1996年   4篇
  1995年   3篇
  1994年   7篇
  1993年   8篇
  1992年   5篇
  1991年   3篇
  1990年   5篇
  1989年   4篇
  1988年   3篇
  1987年   2篇
  1986年   3篇
  1985年   4篇
  1984年   4篇
  1983年   5篇
  1982年   3篇
  1981年   6篇
  1980年   4篇
  1979年   2篇
  1978年   3篇
  1977年   2篇
  1975年   2篇
  1974年   1篇
  1973年   1篇
排序方式: 共有624条查询结果,搜索用时 992 毫秒
281.
This exploratory qualitative study probed the experiences of fourteen 7–12-year-old children living in poverty. Child-centered activity-based interviewing methods were utilized. Three universal themes with eight life area specific categories emerged from qualitative data analysis. This study's findings suggest that children perceive poverty as a hurtful and detrimental factor in their lives. The findings also suggest, however, that some children living in poverty may not view their current financial situation as limiting to their future prospects, and that in spite of the hardships they themselves face, children living in poverty have tremendous compassion for children less fortunate than themselves. Finally, the study concludes that the child-centered research methods allow for children to make valuable contributions to childhood poverty research.  相似文献   
282.
Summary: One specific problem statistical offices and research institutes are faced with when releasing microdata is the preservation of confidentiality. Traditional methods to avoid disclosure often destroy the structure of the data, and information loss is potentially high. In this paper an alternative technique of creating scientific–use files is discussed, which reproduces the characteristics of the original data quite well. It is based on Fienberg (1997, 1994) who estimates and resamples from the empirical multivariate cumulative distribution function of the data in order to get synthetic data. The procedure creates data sets – the resample – which have the same characteristics as the original survey data. The paper includes some applications of this method with (a) simulated data and (b) innovation survey data, the Mannheim Innovation Panel (MIP), and a comparison between resampling and a common method of disclosure control (disturbance with multiplicative error) with regard to confidentiality on the one hand and the appropriateness of the disturbed data for different kinds of analyses on the other. The results show that univariate distributions can be better reproduced by unweighted resampling. Parameter estimates can be reproduced quite well if the resampling procedure implements the correlation structure of the original data as a scale or if the data is multiplicatively perturbed and a correction term is used. On average, anonymization of data with multiplicatively perturbed values protects better against re–identification than the various resampling methods used.  相似文献   
283.
This paper examines the hypothesis that parents exaggerate their reading with children aged 3 to 5 when asked typical single-item questions and that the extent of exaggeration is greater for better-educated parents. It examines differences in parental reporting of reading to children that may result from differences in response bias. It examines whether differences in reading with children by race/ethnicity, income, and family structure hold up after controlling for maternal education and other factors. Finally, it examines whether any bias we find affects the relationship between reading and achievement test scores. Data are from the Child Development Supplement to the Panel Study of Income Dynamics, a nationally representative sample of children and their parents who were asked detailed questions about their lives and activities in 1997.  相似文献   
284.
ABSTRACT

The thematic and geographical expansion of EU migration policies has gone along with an increasing mobilisation of pertinent international organisations such as the IOM and UNHCR. Combining insights from the external governance approach with IR debates on international institutional complexity, this article examines the dynamics behind this ‘multilevelling’ of EU external policies. Three strategies of institutional interplay are distinguished: counterweight, whereby international organisations act as independent complement or corrector to EU policy; subcontracting, referring to the outsourcing of EU project implementation to international organisations; and rule transmission, a process in which international organisations engage in transferring EU rules to third countries. Whereas greater organisational authority and autonomy have allowed the UNHCR to keep an independent voice as counterweight to EU action, both the UNHCR and IOM have become increasingly involved in the implementation of the EU's ‘global approach’ to migration via subcontracting and rule transmission. In sum, these processes shed a new light on the role of the EU within the international migration regime complex.  相似文献   
285.
Between 1990 and the early 2000s, thousands of children were adopted into families in the United States from Eastern Europe. While most adoptions are successful, some children have difficulties. This qualitative study of 26 youth between the ages of 12 and 21 who were sent by their parents to an educational alternative setting or left their adoptive home prior to completing high school were interviewed regarding their experiences of adoption. The study found that the youth were appreciative of their adoptive parents, but saw the world through a different lens due to their lived experiences. Conclusions may assist prospective adoptive parents and professionals.  相似文献   
286.
The procurement of maintenance, repair, and operating (MRO) goods has remained a relatively understudied topic in the literature. Though vital cost efficiencies can be extracted from procurement processes through investments in e‐procurement systems, there is little empirical work that addresses how such systems should be deployed within organizations. In this study, we focus on the role of e‐procurement systems in MRO procurement and study two critical aspects of infusion. The first dimension captures the depth of e‐procurement use within the procurement function, while the second dimension depicts the breadth of use. We argue that these two dimensions of e‐procurement use, and their interaction, will be related to the performance of the MRO procurement process. Using survey data from 193 service organizations and structural equation modeling techniques, we show that the two infusion dimensions are significantly associated with improved process performance. Additionally, we show a substantial substitutive effect between the two use dimensions on performance. Our work has significant implications for managers who seek to gain efficiencies by the deployment of Internet‐based technologies within operational processes. Our conceptualization of e‐procurement infusion along two dimensions provides a more fine‐grained analysis of performance benefits accruing from the infusion of information technologies within organizations.  相似文献   
287.
Mother's reports of anger causes within the family were analyzed in terms of the family relationships of the persons experiencing and eliciting anger and three independent components of the anger-eliciting event—Type of Cause, Focus of Anger, and Temporal Specificity. Mothers' reports suggest substantial differences (a) in anger causes across relationships, (b) depending on whether parents or children were experiencing or eliciting anger events, and (c) for the three independent components of the anger events. For example, for type of cause, mothers' reports indicated more expectancy violations for parents' than children's anger, but more goal blockages for children's than parents' anger. Also, elicitormattered; mothers' reports indicated more goal blockages elicited by parents than by children, but more expectancy violations elicited by children than by parents. These patterns are interpreted in terms of differential power and status within the family.  相似文献   
288.
289.
290.
Analysis of career paths of middle managers in savings banks revealed significant gender differences. This study of matched pairs found that men advanced faster and reached middle management through fewer promotions and positions than did their female counterparts. Men also had significantly more work experience outside of banking. In their banking careers, men held more jobs in lending, whereas women occupied more customer service positions.  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