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   19753篇
  免费   562篇
  国内免费   16篇
管理学   2503篇
民族学   109篇
人才学   1篇
人口学   1828篇
丛书文集   171篇
理论方法论   1827篇
综合类   770篇
社会学   10157篇
统计学   2965篇
  2023年   103篇
  2021年   137篇
  2020年   299篇
  2019年   377篇
  2018年   483篇
  2017年   704篇
  2016年   487篇
  2015年   380篇
  2014年   454篇
  2013年   3246篇
  2012年   676篇
  2011年   653篇
  2010年   524篇
  2009年   451篇
  2008年   539篇
  2007年   539篇
  2006年   561篇
  2005年   501篇
  2004年   420篇
  2003年   382篇
  2002年   407篇
  2001年   480篇
  2000年   428篇
  1999年   428篇
  1998年   321篇
  1997年   291篇
  1996年   272篇
  1995年   274篇
  1994年   250篇
  1993年   263篇
  1992年   290篇
  1991年   303篇
  1990年   295篇
  1989年   289篇
  1988年   243篇
  1987年   288篇
  1986年   227篇
  1985年   265篇
  1984年   265篇
  1983年   246篇
  1982年   222篇
  1981年   195篇
  1980年   178篇
  1979年   194篇
  1978年   169篇
  1977年   136篇
  1976年   155篇
  1975年   166篇
  1974年   135篇
  1973年   101篇
排序方式: 共有10000条查询结果,搜索用时 328 毫秒
961.
962.
Family therapy for drug abuse: review and updates 2003-2010   总被引:1,自引:0,他引:1  
Just 15 years ago, Liddle and Dakof (Journal of Marital and Family Therapy, 1995; 21, 511) concluded, based on the available evidence, that family therapy represented a "promising, but not definitive" approach for the treatment of drug problems among adolescents and adults. Seven years later, Rowe and Liddle (2003) review described considerable progress in this specialty with encouraging findings on adolescent-focused models based on rigorous methodology, as well as advances with adult-focused family-based treatments. The current review brings the field up to date with highlights from research conducted in the intervening 7 years, cross-cutting issues, recommendations for new research, and practice implications of these findings. Adolescent-focused family-based models that attend to the ecology of the teen and family show the most consistent and strongest findings in recent studies. Adult-focused models based on behavioral and systems theories of change also show strong effects with drug abusers and their families. The overarching conclusion is that family-based models are not only a viable treatment alternative for the treatment of drug abuse, but are now consistently recognized among the most effective approaches for treating both adults and adolescents with drug problems.  相似文献   
963.
A child or adolescent with pediatric bipolar disorder (PBD) is at higher risk for suicide, violence, and impaired psychosocial functioning. The prevalence of diagnosed PBD has increased 40-fold in less than 2 decades, leading some to believe that PBD is inaccurately diagnosed. Complicating this issue, disagreements exist among clinicians as to the utility of current screening methods. The assessment picture is further muddied by the high rate of comorbid psychiatric conditions. A literature review was performed to describe the present understanding of PBD and identify current practices of screening for the disorder. Although screening tools are available, the literature suggests they lack validity. Awareness, a thorough interview, and expedient referral may assist clinicians in making a correct diagnosis. Accurate assessment will help ease the psychological and economic burden of PBD.  相似文献   
964.
Abstract Objective: The authors examine the dynamics and the impact of all-campus events on pH1N1 spread at Bates College in fall 2009, with comparisons to 3 other campuses. Participants: Students (N = 285) presented or called in to the Bates Health Center with symptoms consistent with influenza-like illness. Methods: Health Center staff at Bates collected data on the outbreak; data from other colleges are from Web sites and journal articles. Data were analyzed using a mathematical model for influenza. Results: Bates held 2 vaccine clinics mid-outbreak. The data are consistent with the hypothesis that the vaccine clinics may have altered routine student interactions, facilitating transmission of pH1N1 among students who otherwise might not have encountered each other. Conclusion: The vaccine clinics, held when vaccine became available, were too late to halt transmission. The disruptions to campus rhythms due to the vaccine clinics may instead have contributed to pH1N1 spread.  相似文献   
965.
966.
967.
968.
This paper examines rural population ageing in the United States with a particular focus on the contrasting contexts in which older rural residents live. We compare the characteristics of the older population by rural versus urban residence, and explore challenges and opportunities associated with the ageing of rural baby boomers. The United States is a vast territory, and rural areas in the US are diverse regionally, in poverty and income, principal forms of employment, proximity to metropolitan areas, population size, density and composition, the history of change in these parameters, and a number of other factors that affect the ageing process. Hence, the diversity across rural areas is an important consideration in what affects the well being of rural elderly individuals, as well as the community-level impacts of rural ageing. Further, the characteristics of the older rural population help shape community and rural development outcomes for diverse rural communities. We use data from various US Census Bureau sources, and cite other studies to provide a demographic overview of ageing in the rural United States, and to analyze how this situation differs in varying socio-demographic and regional contexts. In the concluding section, we focus on policy implications associated with rural ageing.  相似文献   
969.
Three relations between elementary school children were investigated: networks of general dislike and bullying were related to networks of general like. These were modeled using multivariate cross-sectional (statistical) network models. Exponential random graph models for a sample of 18 classrooms, numbering 393 students, were summarized using meta-analyses. Results showed (balanced) network structures with positive ties between those who were structurally equivalent in the negative network. Moreover, essential structural parameters for the univariate network structure of positive (general like) and negative (general dislike and bullying) tie networks were identified. Different structures emerged in positive and negative networks. The results provide a starting point for further theoretical and (multiplex) empirical research about negative ties and their interplay with positive ties.  相似文献   
970.
Employee Assistance Programs (EAPs) are workplace resources available to employees with problems impacting work performance. EAPs are well-positioned to address intimate partner violence (IPV), a major public health problem with workplace impacts. A purposeful sample of 28 EAPs across the United States was surveyed to identify policies and programs to address IPV, including perpetration. Most EAPs did not report having standardized approaches for addressing IPV perpetration. EAPs also described significant barriers to identifying IPV perpetrators, with the majority relying on self-disclosure on the part of the perpetrator when contacting the EAP. These results suggest that many EAPs--even when interacting with employees who present with issues known to correlate with IPV--are missing a potential opportunity to assess and intervene with IPV perpetrators.  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