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   966篇
  免费   64篇
管理学   126篇
民族学   8篇
人口学   67篇
丛书文集   4篇
理论方法论   143篇
综合类   13篇
社会学   561篇
统计学   108篇
  2023年   10篇
  2022年   8篇
  2021年   15篇
  2020年   39篇
  2019年   29篇
  2018年   28篇
  2017年   59篇
  2016年   41篇
  2015年   33篇
  2014年   49篇
  2013年   150篇
  2012年   39篇
  2011年   36篇
  2010年   27篇
  2009年   36篇
  2008年   30篇
  2007年   37篇
  2006年   26篇
  2005年   29篇
  2004年   29篇
  2003年   25篇
  2002年   33篇
  2001年   23篇
  2000年   18篇
  1999年   25篇
  1998年   13篇
  1997年   17篇
  1996年   9篇
  1995年   9篇
  1994年   9篇
  1993年   11篇
  1992年   10篇
  1991年   3篇
  1990年   12篇
  1989年   4篇
  1988年   4篇
  1987年   3篇
  1986年   4篇
  1985年   5篇
  1984年   7篇
  1983年   4篇
  1982年   4篇
  1981年   2篇
  1980年   5篇
  1979年   3篇
  1978年   4篇
  1975年   3篇
  1974年   4篇
  1971年   2篇
  1966年   1篇
排序方式: 共有1030条查询结果,搜索用时 31 毫秒
81.
82.
83.
This paper explores the historical change in the work-leisure balance using time-diary evidence. Much of the recent discussion of this balance in the developed world has focused on paid work alone. What follows takes a different approach, considering the balance of all work time (paid plus unpaid) against leisure time and observes a tendency over recent decades for leisure to decline relative to work in this broad sense. Much is changing, in employment, family and consumption terms over this period. One possibility is that the relative increase in work time reflects the reversal of the status/leisure gradient: the financially privileged classes, which once had more leisure than others, now have less. But the paper closes with the speculation that this increase in work time for both men and women may be indirectly connected with the phenomenon of the women’s “dual burden”, via an unconsidered but nevertheless important principle of fairness in the distribution of work within households.  相似文献   
84.
Parametric methods for the calculation of reference intervals in clinical studies often rely on the identification of a suitable transformation so that the transformed data can be assumed to be drawn from a Gaussian distribution. In this paper, the two-stage transformation recommended by the International Federation for Clinical Chemistry is compared with a novel generalised Box–Cox family of transformations. Investigation is also made of sample sizes needed to achieve certain criteria of reliability in the calculated reference interval. Simulations are used to show that the generalised Box–Cox family achieves a lower bias than the two-stage transformation. It was found that there is a possibility that the two-stage transformation will result in percentile estimates that cannot be back-transformed to obtain the required reference intervals, a difficulty not observed when using the generalised Box–Cox family introduced in this paper.  相似文献   
85.
When nations fail to agree, can individual citizens make a difference? The third of our post-Copenhagen features is by Jonathan Gilligan, Thomas Dietz, Gerald T. Gardner, Paul C. Stern , and Michael P. Vandenbergh . They look at the effects that voluntary actions by individuals can have, and at the policies that can best encourage such actions.  相似文献   
86.
This study explored how health, wealth, and family ties shape older cohabitors' chances of marrying or separating. Drawing on rational choice and exchange theories, the author argues these factors affect women and men differently because the rewards, alternatives, and barriers of later‐life union formation differ by gender. The study used panel data from the 1998–2006 Health and Retirement Study and a sample of cohabitors 50 and older (N = 1,136). For older female cohabitors, large families and entitlement income lower the risk of marrying, whereas close social networks raise the risk of separating. Moreover, health and wealth have an interactive relationship in that the risk of marrying is highest for unhealthy male cohabitors when they are very wealthy but is highest for the poorest female cohabitors when they are in excellent health. Older men may be exchanging economic resources for caregiving, and cohabitation may be an adaptive response to the gendered costs and barriers of later‐life union formation.  相似文献   
87.
88.
Demonstration of a dose-response relationship for environmental tobacco smoke (ETS) is an important indication of causality. Central to the analysis and interpretation of dose-response relations as described in epidemiological studies is the relationship between dose and exposure. It must be recognized that in studies of ETS we have only surrogate measures of dose, and these surrogate measures (based on exposure) are imperfect. The question-based measures of ETS exposure generally have not been standardized, may have limited validity and reliability, and cannot comprehensively describe total ETS exposure, exposure to individual ETS components, nor doses of biologically relevant agents at target sites. Nevertheless, useful data have been yielded in epidemiologic studies linking ETS exposure to increased respiratory infection and symptoms, reduced lung growth in children, and increased lung cancer in nonsmoking adults. The more consistent exposure-response data for studies on acute health in children may reflect the greater difficulty in measuring exposure in studies of chronic health in adults.  相似文献   
89.
Hammitt  James K.  Belsky  Eric S.  Levy  Jonathan I.  Graham  John D. 《Risk analysis》1999,19(6):1037-1058
Residential building codes intended to promote health and safety may produce unintended countervailing risks by adding to the cost of construction. Higher construction costs increase the price of new homes and may increase health and safety risks through income and stock effects. The income effect arises because households that purchase a new home have less income remaining for spending on other goods that contribute to health and safety. The stock effect arises because suppression of new-home construction leads to slower replacement of less safe housing units. These countervailing risks are not presently considered in code debates. We demonstrate the feasibility of estimating the approximate magnitude of countervailing risks by combining the income effect with three relatively well understood and significant home-health risks. We estimate that a code change that increases the nationwide cost of constructing and maintaining homes by $150 (0.1% of the average cost to build a single-family home) would induce offsetting risks yielding between 2 and 60 premature fatalities or, including morbidity effects, between 20 and 800 lost quality-adjusted life years (both discounted at 3%) each year the code provision remains in effect. To provide a net health benefit, the code change would need to reduce risk by at least this amount. Future research should refine these estimates, incorporate quantitative uncertainty analysis, and apply a full risk-tradeoff approach to real-world case studies of proposed code changes.  相似文献   
90.
Action theory's substantive image of social organization, theory building strategy, and methodological tenets are compared with those of interactionism. Despite polemics to the contrary, action and interaction concepts denote a similar image of social organization and personality. As is argued, the principle difference between the two perspectives revolves around the issue of the most appropriate theory building and methodological strategy. The ontological implications of this fact are examined and found not to justify the continued partitioning of social theory into antagonistic metaphysical camps.  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