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   179篇
  免费   7篇
管理学   27篇
民族学   2篇
人口学   15篇
丛书文集   2篇
理论方法论   14篇
综合类   1篇
社会学   90篇
统计学   35篇
  2023年   6篇
  2022年   1篇
  2021年   3篇
  2020年   8篇
  2019年   5篇
  2018年   18篇
  2017年   12篇
  2016年   10篇
  2015年   7篇
  2014年   6篇
  2013年   37篇
  2012年   8篇
  2011年   10篇
  2010年   7篇
  2009年   6篇
  2008年   5篇
  2007年   3篇
  2006年   2篇
  2005年   4篇
  2004年   2篇
  2003年   4篇
  2002年   1篇
  2001年   2篇
  2000年   1篇
  1999年   4篇
  1998年   3篇
  1993年   3篇
  1991年   1篇
  1990年   3篇
  1987年   1篇
  1984年   1篇
  1983年   1篇
  1979年   1篇
排序方式: 共有186条查询结果,搜索用时 15 毫秒
21.
22.
23.
24.
25.
The United States is generally recognised as an exemplar of liberal policy regime types. However, given evidence of state-level divergence in social policy, this article investigates to what extent such variation is present and relevant in state-level family policy. To this end, we pose a primary and secondary research question. Our primary question is whether varieties of liberalism exist across the 50 states in the United States. Our secondary question is whether these varieties of liberalism correspond to variety in social indicators of families' economic well-being. To answer our primary question, we first construct a family policy index that scores the relative generosity and coverage of state-administered social programmes that contribute to the (de)commodification and (de)familialisation of households with children. We then perform a cluster analysis to group states by shared decommodifying and defamilialising features. To answer our secondary question, we investigate how our family-policy clusters are associated with social indicators of families' financial security. Our findings suggest that varieties of liberalism do, indeed, exist within the United States. With the exception of Vermont, which stands out with respect to its comparatively generous family policies, we classify states into two groups: those with ‘soft’ liberal family policy in states featuring relatively generous and accessible policies and ‘hard’ liberal family policy in states achieving little of either. We find that these differences help explain state-level heterogeneity in levels of economic security among households with children, particularly single-mother households.  相似文献   
26.
The COVID-19 pandemic and Brexit were separate yet inter-related developments which affected the British National Health Service (NHS). The UK's state-funded health sector had historically relied on migrant labour and depended on a migration infrastructure designed to solve its nursing labour shortages. The analysis of primary qualitative and secondary quantitative data shows that the NHS migration infrastructure increased its orientation towards Asia to compensate for the effects of Brexit. The paper reveals how the persistent use of temporary visas along with conditional contractual arrangements has led to various exclusions for migrant nurses and midwives. These data also demonstrate how international travel restrictions associated with COVID-19 created temporary obstacles for nurses' inflows. Alongside Brexit, this has also resulted in an increase in outflows amongst EU health workers. The article identifies the development of migrant support infrastructure amongst Filipino and Indian nurses as a major COVID-19 linked innovation.  相似文献   
27.
AStA Advances in Statistical Analysis - Recent studies have pointed out the effect of personality traits on athletes’ performance and success; however, fewer analyses have focused the...  相似文献   
28.
The objectives of the present study were to analyze the pattern of tobacco use among Spanish adolescents, as well as to determine gender differences in specific risk factors of cigarette use. The study sample was made up of 1,483 boys and 1,358 girls, aged 12-16 (M = 14). Participants were asked to answer an ad-hoc instrument to evaluate the pattern of use, perceived availability, risk of harm, family- and peer-use, engagement in leisure activities, drive for thinness, and self-esteem. Results showed no gender differences in the pattern of use. With regard to risk and protector factors, a predictive analysis showed that peer-related variables were the most determinant for tobacco use both for boys and girls. Some gender differences were also detected: Playing sports was protective for boys only, and listening to music for girls only. Drive for thinness and self-esteem were not related to tobacco use for either boys or girls. These findings help increase our understanding of smoking risk factors in adolescence and to pay special attention to the group of friends when planning prevention programs to reduce risk factors.  相似文献   
29.
A functional linear regression model linking observations of a functional response variable with measurements of an explanatory functional variable is considered. This model serves to analyse a real data set describing electricity consumption in Sardinia. The interest lies in predicting either oncoming weekends’ or oncoming weekdays’ consumption, provided actual weekdays’ consumption is known. A B-spline estimator of the functional parameter is used. Selected computational issues are addressed as well.  相似文献   
30.
Comparing quantile residual life functions by confidence bands   总被引:1,自引:0,他引:1  
In this article we present a nonparametric method for constructing confidence bands for the difference of two quantile residual life (qrl) functions. These bands provide evidence for two random variables ordering with respect to the qrl order. The comparison of qrl functions is of importance, specially in the treatment of cancer when there exists a possibility of benefiting from a new secondary therapy. A qrl function is the quantile of the remaining life of a surviving subject, as it varies with time. We show the applicability of this approach in Medicine and Ecology. A simulation study has been carried out to evaluate and illustrate the performance and the consistency of this new methodology.  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