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   4309篇
  免费   237篇
  国内免费   46篇
管理学   80篇
劳动科学   2篇
民族学   15篇
人口学   463篇
丛书文集   123篇
理论方法论   1180篇
综合类   704篇
社会学   1984篇
统计学   41篇
  2024年   13篇
  2023年   81篇
  2022年   84篇
  2021年   109篇
  2020年   173篇
  2019年   205篇
  2018年   226篇
  2017年   292篇
  2016年   185篇
  2015年   176篇
  2014年   176篇
  2013年   1092篇
  2012年   201篇
  2011年   306篇
  2010年   124篇
  2009年   143篇
  2008年   163篇
  2007年   144篇
  2006年   129篇
  2005年   104篇
  2004年   78篇
  2003年   50篇
  2002年   45篇
  2001年   51篇
  2000年   39篇
  1999年   39篇
  1998年   31篇
  1997年   31篇
  1996年   23篇
  1995年   10篇
  1994年   17篇
  1993年   20篇
  1992年   16篇
  1991年   2篇
  1990年   1篇
  1989年   2篇
  1988年   1篇
  1984年   2篇
  1983年   2篇
  1982年   2篇
  1981年   1篇
  1980年   1篇
  1979年   1篇
  1978年   1篇
排序方式: 共有4592条查询结果,搜索用时 15 毫秒
991.
一般注意义务由德国民庭法官依判例而创设.一般注意义务以"行为定位"为思考模式,具有危险回避和危险防免等功能.随着当代社会危险的日益增多,其适用范围也不断拓展,大有成为德国侵权法上"第四小总则"之趋势,对我国侵权法发展不无借鉴意义.  相似文献   
992.
2008年以前,美国零售诊所是以没有保险的底层顾客为目标市场,依靠自身资源提供经济便捷的基本医疗保健服务,这种单一收入来源无法实现盈利。2008年以后,通过与医院、医生和各种协会构建合作关系网络,美国零售诊所转变为以广大的偏好便利的患者为目标市场,提供基本医疗保健服务、慢性病治疗、美容等更全面的服务。通过利用医院系统的资源,美国零售诊所改善了服务过程,消除了患者顾虑,构建了更长的价值链,从而也获得了多种可持续的盈利来源。这种创新实质上是在信息通信技术推动下的合作网络创新,也是未来零售企业创新的机会和方向。  相似文献   
993.
沈阳老龄化的趋势很严重,目前已经进入了老龄化社会。老年人的养老方式也发生了变迁,一些思想开放、经济条件好的和一些身体行动不便的老年人纷纷走入了养老机构中安享晚年,虽然机构养老有很多的优点,但依然存在很多的问题。对沈阳市养老服务中心进行了个案研究,运用观察法、访问调查等方法对中心的部分老年人进行了调研,以社会工作为视角,从社区照顾的角度提出了在服务中心增加社区照顾项目、设置社工岗位、为老年人建立社会支持体系等对策与建议。  相似文献   
994.
Variability in hospital occupancy negatively impacts the cost and quality of patient care delivery through increased emergency department (ED) congestion, emergency blockages and diversions, elective cancelations, backlogs in ancillary services, overstaffing, and understaffing. Controlling inpatient admissions can effectively reduce variability in hospital occupancy to mitigate these problems. Currently there are two major gateways for admission to a hospital: the ED and scheduled elective admission. Unfortunately, in highly utilized hospitals, excessive wait times make the scheduled gateway undesirable or infeasible for a subset of patients and doctors. As a result, this group often uses the ED gateway as a means to gain admission to the hospital. To better serve these patients and improve overall hospital functioning, we propose creating a third gateway: an expedited patient care queue. We first characterize an optimal admission threshold policy using controls on the scheduled and expedited gateways for a new Markov decision process model. We then present a practical policy based on insight from the analytical model that yields reduced emergency blockages, cancelations, and off‐unit census via simulation based on historical hospital data.  相似文献   
995.
Financial Reciprocity and Elder Care: Interdependent Resource Transfers   总被引:7,自引:7,他引:0  
A sample from the Wisconsin Longitudinal Study was used to examine the influence of parent-to-child financial transfers and economic resources on child-to-parent financial transfers, caregiving, time-help, and coresidence as multiple, interdependent transfers from middle-aged adult children to their elderly parents. There were strong positive effects of prior parent-to-child financial transfers in the models of caregiving, time help, and coresidence but no effect on child-to-parent financial transfers. Coresidence, caregiving, and time-help are complements but there was no interdependence between child-to-parent financial transfers and caregiving or time-help. The effects of parents’ incomes and net worth are interpreted as evidence about motives for transfers to them.
Sun-Kang KohEmail:
  相似文献   
996.
A large body of literature documents the importance of child support for children’s wellbeing, though little is known about the child support behaviors of mixed-status families, a large and rapidly growing population in the United States. In this paper, we use data from the Fragile Families and Child Wellbeing Study to investigate the impact of citizenship status on formal and informal child support transfers among a nationally representative sample of parents who have citizen children. Probit regression models and propensity score matching (PSM) estimators show that mixed-status families are significantly less likely to have child support orders and child support receipt compared to their citizen counterparts. We found that mothers’ knowledge of the child support system increases the probability of establishing paternity. However, cultural differences in knowledge of and perception about the U.S. child support system between mixed-status families and citizen families do not have an impact on the probability of getting a child support order, child support receipt, or in-kind child support. Rather, institutional factors such as collaborations between welfare agencies and child support enforcement agencies as well as state child support enforcement efforts have a significant impact on formal child support outcomes. The results are robust against different model specifications, measure constructions, and use of datasets. These findings have important policy implications for policy makers and researchers interested in reducing child poverty in complex family structures and underscore the need to revisit child support policies for mixed-status families.  相似文献   
997.
Within the last few decades our understanding of the importance of non-cognitive skills for socioeconomic success has grown along with our knowledge of the deleterious impacts of paternal incarceration for child wellbeing. Given the importance of early skills and that elementary-aged children constitute the majority of children with incarcerated parents, understanding the connection between paternal incarceration and the socio-emotional component of children’s non-cognitive development is pressing. Using matching models, data from the newest wave of the Fragile Families and Child Wellbeing Study, and exploring a larger range of behavioral skills than previous literature, this paper provides estimates of the impact of paternal incarceration on children’s behavioral functioning at age 9 using children’s own self-reports. Comparisons to oft-used parent reports are made and heterogeneity by gender is explored. Findings suggest the incarceration of a father increases the antisocial behaviors children self-report, but has null effects on prosocial skill development.  相似文献   
998.
BackgroundThe evaluation process can be a lever to improve pathways of access to healthcare. The objective of this article is to show how an evaluation strategy can both contribute to knowledge development and have direct impacts on health services provision. We use the case of hepatitis C (HCV) services organization to illustrate the use and the value of this evaluative approach.MethodInspired by empowerment evaluation, the transformative–participatory approach involved overlapping phases of knowledge development and discussion with stakeholders. We conducted several knowledge development activities to discern the needs of people with HCV, the resources available, and the facilitators and impediments along the care pathway, starting from prevention and screening, all the way through to treatment. Using an overlapping approach allowed us to regularly transfer acquired knowledge back to the participants in the study settings and also to gather their impressions, interpretations, and suggestions during periods of deliberation.ResultsThe knowledge development activities made it possible to document the needs, resources, and experiences of people affected by HCV. In the discussion sessions, viable solutions were identified to improve health and healthcare access for people with HCV and to prioritize certain actions. This project demonstrated that using the evaluation process can enable an instrumental, conceptual use of results and, in fact, can have a transformative impact on services organization.  相似文献   
999.
This article explores the global challenge of population aging with a specific focus on the concepts of integration and participation of older people in society within the context of “realizing a society for all ages” as promoted by the United Nations. It is proposed that governments worldwide need to embrace new ways of thinking about population aging that include strategic initiatives for strengthening the social contract that fosters generational interdependence. The meaning of “positive aging” is explored at both the individual and social levels, with implications for quality-of-life issues involving intergenerational relationships. The point is made that while the promotion of positive aging is commendable on both philosophical and health grounds it can be problematic for those older people who for a range of legitimate reasons are unable to fulfill the notion of positive or active aging. The longevity revolution will require the emergence of a more humane society that undertakes to reconceptualize what older age means, together with exploring new ways of enhancing the citizenship status of older people through the development and promotion of innovative intergenerational relationships. A call is made for a wider engagement of the citizenry in the processes involved in the formulation and implementation of policy making.  相似文献   
1000.
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