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   206篇
  免费   6篇
各国政治   17篇
工人农民   15篇
世界政治   22篇
外交国际关系   3篇
法律   110篇
中国政治   5篇
政治理论   40篇
  2020年   1篇
  2018年   2篇
  2017年   3篇
  2016年   1篇
  2015年   3篇
  2014年   1篇
  2013年   27篇
  2012年   3篇
  2011年   4篇
  2010年   3篇
  2009年   4篇
  2008年   5篇
  2007年   2篇
  2006年   1篇
  2005年   9篇
  2004年   8篇
  2003年   6篇
  2002年   14篇
  2001年   9篇
  2000年   10篇
  1999年   9篇
  1998年   6篇
  1997年   3篇
  1996年   4篇
  1995年   3篇
  1994年   4篇
  1993年   2篇
  1992年   8篇
  1991年   12篇
  1990年   4篇
  1989年   2篇
  1988年   6篇
  1987年   7篇
  1986年   3篇
  1985年   1篇
  1984年   6篇
  1983年   1篇
  1982年   1篇
  1981年   1篇
  1980年   2篇
  1979年   2篇
  1978年   1篇
  1977年   1篇
  1976年   1篇
  1975年   1篇
  1974年   1篇
  1973年   1篇
  1972年   2篇
  1971年   1篇
排序方式: 共有212条查询结果,搜索用时 15 毫秒
171.
Modern social thought identifies social science with the conception of (1) ‘social action’ and (2) the ‘rationality’ of social action. This identification is central to the specificity of modern social thought as opposed, in particular, to Marxian social theory. In this paper we present a critical appraisal of these fundamental categories of current social science and trace out the contradictions which they entail for the theoretical comprehension of social phenomena. The contradictions intrinsic to the social action methodology, once made explicit, provide the necessary starting point for the critique of modern sociology and economics.  相似文献   
172.
More than a few of my students at Tsinghua University were perplexed by my decision to spend this Labor Day holiday (May 1) vacationing in Shanxi Province. At the heart of China’s coal belt,  相似文献   
173.
174.
Cause of death rulings in cases when the concentration of a drug or drugs is higher than observed following therapeutic use are generally straightforward “drug deaths.” However, when toxicology testing identifies drug concentrations consistent with therapeutic use or detects no drugs at all, then the cause of death determination is more complicated. Given the rapidity and protean manifestations of anaphylaxis, it should be considered in deaths where no other cause of death is apparent in a suspected drug death. This article reports two cases where an anaphylactic reaction was observed following either the actual or alleged use of therapeutic formulations of buprenorphine intravenously.  相似文献   
175.
176.
177.
Political organizations frequently attempt to recruit sympathetic citizens to support their causes. Doing so requires communicating credibility—that is, persuading potential new supporters that they can actually achieve the goals they set out to achieve. In this article we investigate two of the predominant kinds of information that organizations might use to establish credibility: retrospective information (about past successes) and prospective information (about future plans). Using one field experiment and one survey experiment, we find that retrospective information fails to increase people’s willingness to spend scarce resources supporting political organizations. We find that this occurs because information about past successes suggests that the organization can succeed without any additional help. In contrast, we find that prospective information motivates new participants to become active.  相似文献   
178.
Impairment due to ethanol is clearly a risk factor in deaths due to fire. However, it is less clear whether there is a physiological interaction between ethanol and carbon monoxide (CO) that would alter the carboxyhemoglobin saturation level (COHb sat.) that accounts for death. In an attempt to explore this issue further, 196 fire fatalities investigated by the Office of the Chief Medical Examiner, State of Maryland over a 3-year period were examined. COHb sat. and blood ethanol concentrations (BAC) were tabulated. Twelve cases positive for therapeutic or abused drugs other than lidocaine or atropine were excluded; 184 cases were included. The data indicate that ethanol does not affect the COHb sat. that accounts for death, since the percentage of cases positive for ethanol at a given COHb range shows no trends. Therefore, we conclude that although ethanol remains a risk factor in fire fatalities, the risk appears to be related to the impairment that it produces as opposed to a direct interaction with CO.  相似文献   
179.
180.
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