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   1363篇
  免费   103篇
各国政治   157篇
工人农民   82篇
世界政治   151篇
外交国际关系   91篇
法律   715篇
中国政治   63篇
政治理论   203篇
综合类   4篇
  2024年   1篇
  2023年   21篇
  2022年   8篇
  2021年   31篇
  2020年   44篇
  2019年   59篇
  2018年   81篇
  2017年   107篇
  2016年   69篇
  2015年   68篇
  2014年   71篇
  2013年   180篇
  2012年   90篇
  2011年   100篇
  2010年   36篇
  2009年   24篇
  2008年   62篇
  2007年   46篇
  2006年   49篇
  2005年   50篇
  2004年   59篇
  2003年   51篇
  2002年   43篇
  2001年   22篇
  2000年   18篇
  1999年   10篇
  1998年   5篇
  1997年   12篇
  1996年   2篇
  1995年   4篇
  1994年   7篇
  1993年   5篇
  1992年   3篇
  1991年   5篇
  1990年   2篇
  1989年   2篇
  1988年   3篇
  1987年   1篇
  1986年   1篇
  1984年   1篇
  1983年   2篇
  1978年   1篇
  1976年   1篇
  1972年   2篇
  1968年   1篇
  1967年   3篇
  1966年   1篇
  1964年   1篇
  1959年   1篇
排序方式: 共有1466条查询结果,搜索用时 31 毫秒
51.
Journal of Youth and Adolescence - In the original publication, the legends for Figs 4 and 5 were incorrect, such that each regression line was mislabeled with the incorrect country. Below are the...  相似文献   
52.
This paper aims to analyse whether illegal (corruption) and legal rent extraction (high politicians’ wages) affect electoral outcomes at municipal level. We use an initial sample of 145 Spanish municipalities over 50,000 for two electoral periods: 2004–2007 (before the crisis) and 2008–2011 (during the crisis). Our findings show that neither illegal nor legal rent extraction impact on re-election in non-crisis times. However, we observe that citizens penalize legal rent extraction in the ballots during the crisis. Regarding the economic performance of the local governments, we find that its effect on re-election is important in non-crisis period. Nevertheless, in time of crisis, given that the economic situation is bad in general in the country, voters pay less attention to economic factors and focus on politicians’ behaviour.  相似文献   
53.
郑汕  刘利勤 《和平与发展》2012,(2):15-21,70
美国"重返亚洲"是美国"焦虑时代"的"应急反应",随着美国对亚太事务的深度介入,这种"应急反应"已转变成为美国完整的"亚太战略"。从地缘政治考量,美国的亚太战略是以巩固亚太传统的盟友关系为基础,以化解中印崛起带来不确定变量为重点,以插手热点敏感问题为手段,推行全球霸权主义战略的体现。"围堵中国"只是美国亚太战略的一部分。中国可利用美国亚太战略的空间错位,强化共同利益纽带,巩固周边安全格局,为推进小康社会建设和祖国统一大业,创造有利的外部条件。  相似文献   
54.
Epidemics tend to have a debilitating influence on the lives of directly afflicted families. However, the presence of an epidemic can also change the behaviour and outcomes of those not directly affected. This paper makes use of a short, sharp, unexpected epidemic to examine the behavioural response of the public to a sudden shift in the perceived risk to one’s health and mortality. Our analysis finds that unafflicted school students change their behaviour substantially, affecting important life outcomes. In particular, we find that between 1.9 and 4.7 fewer students, out of a typical cohort of 47 pupils, sit their school leaving examination for every additional 10 cases of severe Dengue per 10 000 inhabitants in a municipality. We rule out several possible mechanisms, leaving an increase in the salience of the disease’s risks as a plausible explanation for our findings.  相似文献   
55.
56.
THE energy policy set out in China’s 12th Five-year Plan (2011-2015) is widely expected to swing the door open to cooperation with resource-rich Latin American  相似文献   
57.
58.
59.
60.
The authors evaluated the usefulness of the postmortem biochemical analysis of ionic ratios in different parts of the heart and their relation to cardiac damage caused by chest trauma, as observed by anatomopathologic study. Fifty-nine 59 cases were studied, selected from routine necropsies, and samples were taken from different sites of cardiac tissue. The cause of death was trauma in 40 cases and nontraumatic causes in 19 cases. The object of this study was to analyze the levels of Na+, K+, Ca+2, Mg+2, and Zn+2 in different zones of the heart, and the relationship between intracellular and extracellular ion ratios and the different causes of death and any anatomopathologic alterations observed. The biochemical tests revealed a possible relation between the ionic values and cause of death. Alterations in cell membrane permeability and corresponding modification of the ionic ratios were produced earlier than histologic alterations, which need longer to establish themselves whether or not they follow a traumatic process.  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