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   497篇
  免费   14篇
管理学   66篇
民族学   8篇
人口学   43篇
丛书文集   3篇
理论方法论   51篇
综合类   5篇
社会学   302篇
统计学   33篇
  2023年   6篇
  2021年   3篇
  2020年   5篇
  2019年   10篇
  2018年   15篇
  2017年   15篇
  2016年   13篇
  2015年   8篇
  2014年   12篇
  2013年   74篇
  2012年   10篇
  2011年   15篇
  2010年   11篇
  2009年   14篇
  2008年   17篇
  2007年   17篇
  2006年   18篇
  2005年   16篇
  2004年   16篇
  2003年   12篇
  2002年   15篇
  2001年   12篇
  2000年   12篇
  1999年   14篇
  1998年   13篇
  1997年   11篇
  1996年   9篇
  1995年   4篇
  1994年   9篇
  1993年   10篇
  1992年   7篇
  1991年   7篇
  1990年   5篇
  1988年   6篇
  1987年   5篇
  1986年   4篇
  1985年   3篇
  1984年   8篇
  1983年   6篇
  1982年   6篇
  1981年   7篇
  1980年   8篇
  1978年   3篇
  1976年   4篇
  1975年   2篇
  1974年   4篇
  1971年   2篇
  1970年   1篇
  1969年   2篇
  1966年   1篇
排序方式: 共有511条查询结果,搜索用时 31 毫秒
51.
52.
Models of Stochastic networks may prove important tools for integrating ideas about structure with ideas about process in social theory.  相似文献   
53.
Foster children represent a high-risk group for physical, emotional, and social health problems, yet few federal or state policies explicitly address foster child health. This article reviews foster child health and the legal background for policy, then discusses components of a comprehensive health care supervision program.  相似文献   
54.
55.
56.
In 1980, the U.S. Supreme Court vacated a revised occupational standard for benzene, stating that the Occupational Safety and Health Administration (OSHA) had failed to demonstrate that significant health risks existed under the current standard. This decision has been interpreted by OSHA as requiring the consideration of quantitative risk assessments, whenever possible, in the development of regulations for occupational carcinogens. In light of this decision, the available epidemiologic evidence was used to generate a quantitative risk assessment for benzene. Uncertainties regarding the levels and lengths of benzene exposure for the studied cohorts were incorporated into the analysis. Based on the one-hit model, the assessment indicates that a working lifetime exposure to benzene at the current permissible exposure level (10 ppm) poses a substantial excess risk of death from leukemia. This report discusses the calculation of the risk estimates, the basis for relying on certain assumptions, and the inherent limitations of using epidemiologic studies to quantify cancer risks.  相似文献   
57.
Since enacting a unique facility siting law in 1981, Wisconsin has had unusual success in siting solid-waste management facilities. The law mandates a state-level technical review and licensing process and a local-level negotiation/arbitration process that deals with host community impacts and concerns. Data from the negotiated compensation agreements, a survey of facility proposers, and secondary data for the host communities are analyzed in relation to compensation levels. Concerns with community image and health risks and with facility management and equity issues are found to significantly and substantially increase negotiated compensation levels. In contrast, a focus on logistics and transportation concerns is associated with lower levels of compensation. Compensation increases with facility capacity but at a less than proportional rate. Higher levels of compensation are obtained by communities that accept compensation "in kind" in the form of free or reduced fees for host community waste disposal.  相似文献   
58.
59.
Advisors on strategic planning often give two separate pieces of advice to managers: first, managers must interact with rather than react to the external environment. That is, they should be proactive, not reactive. Second, the organizational effectiveness must be improved. However, seldom is any linkage established between these two pieces of advice. The first premise is primarily an external view, and the second is an internal view. If these two views are not linked, the results may range from slightly below optimum to bankruptcy. The purpose of this article is to show how these two views can be linked.  相似文献   
60.
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