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   505篇
  免费   16篇
管理学   39篇
民族学   2篇
人口学   42篇
理论方法论   99篇
综合类   5篇
社会学   299篇
统计学   35篇
  2023年   3篇
  2021年   5篇
  2020年   8篇
  2019年   12篇
  2018年   8篇
  2017年   17篇
  2016年   16篇
  2015年   8篇
  2014年   10篇
  2013年   90篇
  2012年   18篇
  2011年   21篇
  2010年   4篇
  2009年   14篇
  2008年   27篇
  2007年   16篇
  2006年   15篇
  2005年   8篇
  2004年   17篇
  2003年   13篇
  2002年   8篇
  2001年   16篇
  2000年   12篇
  1999年   5篇
  1998年   7篇
  1997年   14篇
  1996年   11篇
  1995年   13篇
  1994年   7篇
  1993年   10篇
  1992年   6篇
  1991年   8篇
  1990年   3篇
  1989年   4篇
  1988年   9篇
  1987年   6篇
  1986年   6篇
  1985年   7篇
  1984年   2篇
  1983年   3篇
  1982年   3篇
  1981年   5篇
  1980年   3篇
  1979年   4篇
  1978年   8篇
  1977年   2篇
  1975年   3篇
  1971年   1篇
  1970年   1篇
  1967年   1篇
排序方式: 共有521条查询结果,搜索用时 250 毫秒
281.
We analyze a model of conflict with endogenous choice of effort, where subsets of the contenders may force the resolution to be sequential: First the alliance fights it out with the rest and – in case they win – later they fight it out among themselves. For three-player games, we find that it will not be in the interest of any two of them to form an alliance. We obtain this result under two different scenarios: equidistant preferences with varying relative strengths, and varying vicinity of preferences with equal distribution of power. We conclude that the commonly made assumption of super-additive coalitional worth is suspect.  相似文献   
282.
The terrorist attacks on the World Trade Center caused unprecedented economic and structural ramifications in the insurance markets, resulting in considerable uncertainty and informational asymmetry. We test several theoretical models of how markets respond to and recover from extreme capital shocks. Using the capacity constraint, post-loss investment and implicit insurance contract models, we develop testable hypotheses predicting the temporal and cross sectional variation in insurance company stock prices following September 11th. We find evidence consistent with the models' predictions, in particular, the predictions regarding relations between net losses and leverage and stock price performance after the shock.  相似文献   
283.
Although unions are not typically associated with nonprofit organizations, many nonprofit agencies have unionized work forces. The author predicts that there will be an increase in the number of unions representing nonprofit employees. Parallels are drawn between the evolution of unions in the public and nonprofit sectors.  相似文献   
284.
This paper describes a psychoeducation program designed for families and caregivers of patients who suffer from schizophrenia on an inpatient ward of an acute care hospital in a major metropolitan city. It is based on 10 years of experience working with over 600 relatives and caregivers. It discusses the research pertinent to developing such a program, the five elements the authors consider necessary to its success, and the stages of the actualprogram. The five elements include universal service, crisis intervention, social functioning of patient and famly, 2 years continuity of care postdischarge, and the role of the family clinician. It addresses issues raised by working as a muultidisciplinary team and problems in service delivery. A case history illustrates the process.  相似文献   
285.
286.
The goal of this paper is to synthesize available data to help guide policy and programmatic initiatives for families with substance abuse problems who are involved with the child welfare system, and identify gaps in the research base preventing further refinement of practices in this area. To date, Family Treatment Drug Court and newly developed home-based substance abuse treatment interventions appear the most effective at improving substance abuse treatment initiation and completion in child welfare populations. Research is needed to compare the efficacy of these two approaches, and examine cost and child well-being indicators in addition to substance abuse treatment and child welfare outcomes.  相似文献   
287.
This paper uses recent data from the Wisconsin Longitudinal Study (N = 5,220) to explore gender differences in the extent to which adults in their 50s and 60s provide informal help to their adult children, elderly parents and friends We find that both men and women report very high levels of helping kin and nonkin alike, though women do more to assist elderly parents and women provide much more emotional support to others than do men. Men provide more assistance than do women with "housework, yard work and repairs." As they retire from the workforce, married men become significantly more involved in the care of their grandchildren, virtually eliminating any gender difference by the time they are in their 60s.  相似文献   
288.
289.
In this article, we examine the reliability with which teenage sexual activity was reported in three recent national surveys. Unlike other study-effects analyses of objective demographic phenomena such as births and marriages, ours focuses on a more sensitive question--age at first intercourse as reported in three very different surveys. Specifically, we compare reports for the 1959-1963 cohort in the 1979 Kantner-Zelnik Study of Young Women, the 1982 National Survey of Family Growth, and the 1983 wave of the National Longitudinal Survey of Youth. For the ages when the majority of teens become sexually active (16-19), the three surveys provide comparable estimates of early sexual activity. For the younger teen ages, however, there is some disagreement among the estimates. Nevertheless, all three studies produce consistent estimates of the determinants of sexual activity throughout the teen years.  相似文献   
290.
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