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   94篇
  免费   5篇
管理学   11篇
人口学   5篇
理论方法论   15篇
社会学   51篇
统计学   17篇
  2023年   2篇
  2021年   3篇
  2020年   3篇
  2019年   4篇
  2018年   1篇
  2017年   6篇
  2016年   5篇
  2015年   4篇
  2014年   2篇
  2013年   14篇
  2012年   1篇
  2011年   3篇
  2010年   4篇
  2009年   1篇
  2008年   1篇
  2007年   1篇
  2006年   1篇
  2005年   3篇
  2004年   1篇
  2003年   2篇
  2002年   7篇
  2001年   5篇
  2000年   2篇
  1998年   1篇
  1997年   1篇
  1996年   1篇
  1995年   4篇
  1994年   2篇
  1993年   1篇
  1992年   1篇
  1991年   1篇
  1989年   1篇
  1986年   2篇
  1985年   1篇
  1982年   1篇
  1981年   1篇
  1980年   2篇
  1979年   1篇
  1974年   1篇
  1973年   1篇
排序方式: 共有99条查询结果,搜索用时 421 毫秒
91.
Fiscal rules in a volatile world: A welfare-based approach   总被引:1,自引:0,他引:1  
It is widely agreed that a fiscal rule should boost discipline and credibility. A rule should also reduce macroeconomic volatility and be easily understood. Toward such ends, a government may run structural surpluses. In so doing, the government accumulates a precautionary cushion of assets on behalf of agents who do not enjoy access to capital markets. As an additional criterion, that level of assets should be bounded. We provide an example of a structural surplus rule that satisfies all such criteria. In our general equilibrium simulations, we show that such a rule benefits credit-constrained consumers but may hurt others.  相似文献   
92.
The American Geriatrics Society sponsored a working conference in January 2004, funded by the National Institute on Aging, to establish the state of the art in frailty research and to set a research agenda for the future. The invited participants included senior basic biologists, epidemiologists, geneticists, and clinical investigators who study aging-related issues. This article summarizes the central theoretical observations on frailty and research needs and opportunities presented and discussed at this conference, and lays out an agenda for future research on frailty.  相似文献   
93.
94.
ABSTRACT

This article describes a framework for measuring activity demands and the psychometric properties of a related measurement tool, the Multidimensional Activities Demand Strength for Assisted Living (MADS-AL). Nine experts—three in physical, cognitive, and social domains, respectively—rated demands of 37 common assisted-living activities. Interrater reliability and internal consistency for physical, intraclass correlation coefficient (ICC)(2, 3) = .96, Cronbach's α = .97, cognitive, ICC(2, 3) = .71, α = .93, and social, ICC(2, 3) = .80, α = .86, scales give preliminary support for reliability of the MADS-AL tool. Overall, this article moves the field toward considering task demands as a relevant variable to inform future activities research and practice.  相似文献   
95.
Adolescents with abuse histories have been shown to be at increased risk to acquire human immunodeficiency virus and sexually transmitted infections. In addition, teens with lower levels of self-restraint or higher levels of distress, such as those with psychiatric concerns, have also demonstrated increased sexual risk behaviors. This study explored sex differences in sexual risk behaviors among a sample of adolescents in a therapeutic/alternative high school setting. Moderated regression analysis showed that a lower level of self-restraint was associated with sexual risk behaviors in boys but not in girls. Rather, the interaction of self-restraint and multiple types of abuse was associated with greater sex risk within girls in this sample. Results suggest that girls and boys with abuse histories and low levels of self-restraint may have different intervention needs related to sexual risk behaviors.  相似文献   
96.
Informed by institutional ethnography approaches, this study includes interviews with 3 young transmen (21–29) about their experiences regarding Canadian health care and the work they perform to access care. Semistructured interviews were used to gather data that were then analyzed to identify key aspects of participants’ experiences and perceptions. Findings describe the extra work transmen perform to compensate for a lack of provider competence in transgender health care. Influences of the dominant gender binary ideology as it shapes the health care experiences of transmen are discussed. This article calls for social workers to challenge the gender binary and use practice frameworks informed by transgender theory.  相似文献   
97.
Mardia's multivariate kurtosis and the generalized distance have desirable properties as multivariate outlier tests. However, extensive critical values have not been published heretofore. A published approximation formula for critical values of the kurtosis is shown to inadequately control the type I error rate, with observed error rates often differing from their intended values by a factor of two or more. Critical values derived from simulations for both tests for up to 25 dimensions and 500 observations are presented. The power curves of both tests are discussed. The generalized distance is the more powerful test when exactly one outlier is present and the contaminant is substantially mean-shifted. However, as the number of outliers increases, the kurtosis becomes the more powerful test. The two tests are compared with respect to power and vulnerability to masking. Recommendations for the use of these tests and interpretation of results are given.  相似文献   
98.
Using a relational approach, we draw on repeated interviews with a group of 30 diverse children from Ontario to share and reflect on their knowledge, experiences and feelings early in the COVID-19 pandemic. Prioritising relational interdependence and relational agency, this paper illustrates our participants' embedded engagements with the pandemic and their contribution to the co-production of knowledge. We emphasise their thoughtful responses to the pandemic; their creative, self-reflexive strategies for managing a difficult time; and their advice to others. We thus prioritise children's viewpoints and emphasise their relational interconnections with others during a time that was marked by social isolation.  相似文献   
99.
This paper refers to the brand-preference parameters of a previously accepted empirical model, and axiomatically generates several basic propositions and their proofs, which define the retail store's most profitable short-run blend of product brands.  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