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   1634篇
  免费   111篇
各国政治   168篇
工人农民   103篇
世界政治   187篇
外交国际关系   96篇
法律   879篇
中国政治   3篇
政治理论   306篇
综合类   3篇
  2023年   24篇
  2022年   17篇
  2021年   39篇
  2020年   55篇
  2019年   68篇
  2018年   101篇
  2017年   132篇
  2016年   100篇
  2015年   73篇
  2014年   88篇
  2013年   248篇
  2012年   75篇
  2011年   65篇
  2010年   34篇
  2009年   30篇
  2008年   57篇
  2007年   57篇
  2006年   54篇
  2005年   55篇
  2004年   60篇
  2003年   64篇
  2002年   49篇
  2001年   39篇
  2000年   26篇
  1999年   17篇
  1998年   12篇
  1997年   17篇
  1996年   5篇
  1995年   8篇
  1994年   3篇
  1993年   5篇
  1992年   8篇
  1991年   6篇
  1990年   2篇
  1989年   2篇
  1988年   5篇
  1987年   3篇
  1985年   4篇
  1983年   2篇
  1982年   5篇
  1978年   3篇
  1974年   3篇
  1972年   2篇
  1971年   3篇
  1970年   1篇
  1968年   4篇
  1967年   2篇
  1966年   3篇
  1965年   1篇
  1964年   1篇
排序方式: 共有1745条查询结果,搜索用时 15 毫秒
151.
The aim of this study was to analyze the differences between the handwritings of schizophrenia patients and healthy subjects in addition to the changes that occurred in schizophrenia patients' handwriting in response to the treatment. The test subjects were 29 schizophrenia patients and 29 healthy individuals with the same age, gender, and dominant hand. The changes in the handwritings were examined according to 14 different parameters. On the day of admittance, the percentage of extra letters was 16.7%, and after 7–10 days of hospitalization, it rose to 33.3%. The percentage of skipped words decreased from 29.2% to 16.7% after 7–10 days of hospitalization, and to 10% after 3 weeks. The letters written by schizophrenia patients are significantly larger in height and width compared to the control group. The schizophrenia patients showed a higher incidence of crossed-out letters, adding extra words, missing punctuation as well as missing words.  相似文献   
152.
153.
154.
155.
The Covenant of Mayors (CM) is the mainstream European movement involving local authorities who voluntarily commit to increase energy efficiency and the use of renewable energy sources within their territories with the aim of reducing CO2 emissions and meet the European Union objectives by 2020. One country that has a greater number of signatories of this agreement is Spain. This article analyzes which factors influence the decision of Spanish local authorities to join the ever‐growing movement. An empirical model is formulated to describe the behavior of Spanish local governments, this being a binary choice model which is a function of various political, economic, and technical factors. Among the prominent factors that influence this decision are population, availability of renewable energy, fiscal and environmental stress, citizens’ political preference, the contagion effect of neighboring municipalities, the existence of covenant coordinators, and finally, economic motivations.  相似文献   
156.
157.
158.
159.
160.
This report assesses conditions that contribute to or are potentially hospitable to transnational criminal activity and terrorist activity in selected regions of the world during the period 1999–2002. Although the focus of the report is on transnational activity, domestic criminal activity is recognized as a key foundation for transnational crime, especially as the forces of globalization intensify. The report has been arranged geographically into the following major headings: Africa, the former Soviet Union and Eastern Europe, South Asia, Southeast Asia, Western Europe, and the Western Hemisphere. Within the geographical headings, the report addresses individual countries with particularly salient conditions. Cases such as the Triborder Area (TBA) of South America and East and West Africa, where conditions largely overlap national borders, have been treated as regions rather than by imposing an artificial delineation by country. The bibliography has been divided into the same geographical headings as the text. The major sources for this report are recent periodical reports from Western and regional sources, Internet sites offering credible recent information, selected recent monographs, and personal communications with regional experts. Treatment of individual countries varies according to the extent and seriousness of conditions under study. Thus some countries in a region are not discussed, and others are discussed only from the perspective of one or two pertinent activities or conditions. Because they border the United States, Canada and Mexico have received especially extensive treatment.  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