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   869篇
  免费   18篇
管理学   130篇
民族学   1篇
人口学   116篇
丛书文集   15篇
理论方法论   79篇
综合类   13篇
社会学   421篇
统计学   112篇
  2020年   8篇
  2019年   7篇
  2018年   18篇
  2017年   20篇
  2016年   14篇
  2015年   10篇
  2014年   22篇
  2013年   153篇
  2012年   24篇
  2011年   24篇
  2010年   20篇
  2009年   22篇
  2008年   25篇
  2007年   12篇
  2006年   14篇
  2005年   41篇
  2004年   19篇
  2003年   18篇
  2002年   27篇
  2001年   16篇
  2000年   17篇
  1999年   16篇
  1998年   11篇
  1997年   20篇
  1996年   10篇
  1995年   8篇
  1994年   8篇
  1993年   14篇
  1992年   16篇
  1991年   21篇
  1990年   16篇
  1989年   16篇
  1988年   22篇
  1987年   10篇
  1986年   9篇
  1985年   12篇
  1984年   11篇
  1983年   8篇
  1982年   15篇
  1981年   11篇
  1980年   7篇
  1979年   12篇
  1978年   9篇
  1977年   13篇
  1976年   8篇
  1975年   12篇
  1974年   6篇
  1973年   5篇
  1970年   3篇
  1969年   4篇
排序方式: 共有887条查询结果,搜索用时 406 毫秒
81.
82.
When celebrity chef Jamie Oliver used his television presence to denounce the inclusion of lean, finely textured beef (LFTB) in ground beef products sold to consumers and present in school lunches, a firestorm of protests ensued. Ultimately, processing plants were closed, employees laid off, school lunch programs were changed to exclude LFTB from their menus, and large retailers such as Costco and Walmart refused to sell products containing LFTB. Calls for mandatory labeling were proposed in Congress, the argument being that consumers had a right to know what was in the beef they were purchasing and feeding their families. Dubbed “pink slime” by its critics, LFTB is treated, processed beef renderings that are derived from trimmings that would otherwise be discarded or used for some inferior purpose such as animal food. This article chronicles the events surrounding the LFTB controversy, briefly reviews scientific evidence pertaining to its safety, and reviews public policy initiatives in the wake of public protests.  相似文献   
83.
84.
A central feature of the reforms enacted through the Personal Responsibility and Work Opportunity Reconciliation Act (welfare reform) has been the adoption of strategies to involuntarily remove Temporary Assistance to Needy Families (TANF) recipients from the welfare rolls, including increased use of sanctions and time limits on welfare receipt. Drawing on data from a three year panel study of women who had been receiving welfare in a state which adopted stringent sanctioning and time limit policies, we investigate predictors of recipients' TANF status after implementation of welfare reform, and identify differences in post-reform material resources, hardships and quality of life based on TANF status. Almost half of all welfare case closures during the first time period after reforms were implemented through involuntary strategies. Relatively few baseline characteristics predicted different outcomes once welfare time limits and sanctions were implemented. Those who were timed off welfare had substantially lower incomes in the year following their removal. One third of all respondents, regardless of reason for leaving TANF reported having insufficient food, housing problems and lack of access to needed medical care.  相似文献   
85.
Although prior social science research has established the ability of gender ideologies to influence the domestic division of labor, it has neglected to disentangle their potentially unique influence on paternal involvement with children. Past research examining the influence of gender ideology on parenting behaviors does not acknowledge potential differences that may result from accounting for each parent's gender ideology. Using both waves of the National Survey of Families and Households (N = 1,088), I assess the effect of both mother's and father's gender ideology on two measures of paternal involvement. Whereas egalitarian fathers demonstrate greater involvement than traditional fathers, mother's gender ideology failed to predict paternal involvement. Egalitarian mothers do not appear to negotiate greater father involvement successfully.  相似文献   
86.
In this paper we present a parsimonious multivariate model for exchange rate volatilities based on logarithmic high-low ranges of daily exchange rates. The multivariate stochastic volatility model decomposes the log range of each exchange rate into two independent latent factors, which could be interpreted as the underlying currency specific components. Owing to the empirical normality of the logarithmic range measure the model can be estimated conveniently with the standard Kalman filter methodology. Our results show that our model fits the exchange rate data quite well. Exchange rate news seems to be currency specific and allows identification of currency contributions to both exchange rate levels and exchange rate volatilities.  相似文献   
87.
We investigated the impact of relative marital power on 72 newlywed couples’ endocrinological responses to marital conflict. Marital power was determined by comparing spouses’ reports of dependent love for one another. Less powerful spouses displayed elevated adrenocorticotropic hormone (ACTH) responses to a conflict discussion. Shared power appeared to have a beneficial effect on wives’ but not husbands’ ACTH responses. Spouses’ cortisol levels declined over time, except for wives who were less powerful and for husbands who shared power with their wives. Conflict behaviors did not differ as a function of this marital power index. These data suggest that relative levels of general emotional power in relationships may play an important role in spouses’ physiological responses to marital conflict.  相似文献   
88.
Using the 1994–1998 waves of the Current Population Survey—Child Support Supplement (N =5,387), the aims of this study are to document child support obligation rates of nonresident fathers, to examine the effect of the obligation rate on child support compliance, and to calculate the trade‐off between fathers’ financial responsibility and children's well‐being, paying particular attention to low‐income fathers. The results indicate that low‐income fathers have high child support obligation rates, which significantly reduce their child support compliance. Although lowering the obligation rate for these fathers may improve their compliance, it does not fully offset the lowered obligation amounts and leads to a 30% net payment loss for welfare mothers and a 43% loss for nonwelfare mothers. Policy implications are discussed.  相似文献   
89.
Abstract Fish consumption advisories fail to adequately help communities address the benefits and risks of eating potentially contaminated fish. We engaged community members and relevant institutions in identifying and implementing more effective risk communication in Michigan's rural Upper Peninsula. In 2004–2005, we collected data in four Michigan counties through focus groups, community dinners, public meetings and angler interviews. Residents express a strong affinity toward eating Great Lakes fish, though a minority of participants have read the official fish advisory. Participants lack an understanding of how bioaccumulation affects consumption risk depending on the type of contaminant. We attribute the situation to conditions of post‐normal risk that emerge through interaction of the structural dimensions of science and bureaucracy with a strong natural resource‐based culture that affects the agency of residents. The implications loom large as Michigan's Department of Community Health no longer distributes hard copies of the Michigan Fish Advisory.  相似文献   
90.
Occupational stress research continues to grow, and is increasingly being used to inform national policy on worker health and well-being. Most models of occupational stress emphasize notions of person-environment fit. Two approaches for intervention to minimize adverse consequences of occupational stress follow from such models. One emphasizes the strengthening and enhancement of indwiduals and their resources, the other emphasizes the reduction ofcommon workplace-based sources ofoccupational stress. This paper reviews 10 organizational-level interventions to reduce stress at work which have been examined in various field studies. These interventions were generally found to have positive effects, and, given the limited success of individual-level interventions in addressing occupational sources of stress, should be encouraged.  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