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   26851篇
  免费   867篇
  国内免费   5篇
各国政治   1151篇
工人农民   1108篇
世界政治   1880篇
外交国际关系   908篇
法律   16646篇
中国共产党   6篇
中国政治   205篇
政治理论   5556篇
综合类   263篇
  2020年   341篇
  2019年   441篇
  2018年   542篇
  2017年   649篇
  2016年   638篇
  2015年   474篇
  2014年   520篇
  2013年   2582篇
  2012年   687篇
  2011年   774篇
  2010年   603篇
  2009年   691篇
  2008年   751篇
  2007年   824篇
  2006年   775篇
  2005年   735篇
  2004年   710篇
  2003年   749篇
  2002年   660篇
  2001年   1012篇
  2000年   858篇
  1999年   735篇
  1998年   408篇
  1997年   303篇
  1996年   346篇
  1995年   321篇
  1994年   342篇
  1993年   331篇
  1992年   530篇
  1991年   566篇
  1990年   557篇
  1989年   498篇
  1988年   528篇
  1987年   469篇
  1986年   527篇
  1985年   514篇
  1984年   436篇
  1983年   416篇
  1982年   317篇
  1981年   309篇
  1980年   239篇
  1979年   305篇
  1978年   208篇
  1977年   202篇
  1976年   187篇
  1975年   187篇
  1974年   214篇
  1973年   179篇
  1972年   168篇
  1969年   150篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
941.
African agriculture is often dominated by smallholder farms composed of multiple plots. In policy circles it is often assumed that fragmentation coupled with small farm size is an impediment to increasing yields and thus decreasing poverty and food insecurity. There also exists an influential literature that explores the inverse relationship between farm size and yield. While there are many studies internationally, few have been conducted in Africa. Using an Ethiopian national survey, we explore the relationship between yield, farm size and fragmentation. We find an inverse relationship between farm size and yield, and a positive association between yield and land fragmentation.  相似文献   
942.
Political Behavior - Throughout her 2016 U.S. presidential campaign, Democratic Party nominee Hillary Clinton crafted messages intended to appeal to fathers of daughters and to highlight the...  相似文献   
943.
Jenkins  Jeffery A.  McCarty  Nolan  Stewart  Charles 《Public Choice》2020,185(3-4):245-251
Public Choice - Within political science, a movement focused on increasing the credibility of causal inferences (CIs) has gained considerable traction in recent years. While CI has been...  相似文献   
944.
Public Choice - Numerous studies—operating with diverse model specifications, samples and empirical measures—suggest different economic, social, cultural, demographic, institutional and...  相似文献   
945.
With the recent drastic shifts in societies, thinking styles, and most importantly, the degree of online‐and‐offline exposure, it is easy for the young and developing mind to fall prey to radical or extremist ideas. Radical organizations direct their recruiting efforts toward those who have yet to reach adolescence and are incapable of forming well‐informed and educated decisions. Since it is in human nature to target the weak and the vulnerable, these organizations look for dissatisfied, isolated and friendless young people. They are especially allured when these organizations promise to get them all they lack. As there have been incidents recently reported on young students' involvement in terror activities, the study proposes alternatives to prevent them from falling prey to radical thoughts. The proposed alternatives are judged through TOPSIS (Technique of Order Preference Similarity to the Ideal Solution) and the ideal alternative is singled out after mathematical calculation. Out of the five proposed alternatives, the study, through TOPSIS analysis, proposes that parents may be trained to handle their children in order to keep them from radical thoughts. In addition to the ideal alternative, the study also suggests that the government take preventive measures to curb the evil of radicalism.  相似文献   
946.
Boettke  Peter J.  Candela  Rosolino A. 《Public Choice》2020,182(3-4):331-352
Public Choice - This paper reconceptualizes and unbundles the relationship between public predation, state capacity and economic development. By reframing our understanding of state capacity theory...  相似文献   
947.
Journal editors serve as gatekeepers of knowledge, a role critical to preserving the quality and standards of good research. Some scholars have questioned whether editors have taken advantage of their position to publish their own work. To understand the extent to which editors of public administration journals self-publish, we examined publishing patterns over a 20-year period. We collected the names of editors from the mastheads of 13 generalist public administration journals from 1997 to 2016 and used data indexed from Web of Science to look at articles published in those journals during the same time. We found that while self-publishing behaviour is not common across the entire field, it is a trend for certain journals and individuals. We also found the practice of self-publishing is influenced by whether an individual served in a primary editorial role (e.g., editor-in-chief), length of editorial service, and overall scholarly productivity. We discuss appropriateness and ethical implications of the practice.  相似文献   
948.
Indigenous Australians continue to experience entrenched disadvantage. Despite billions being spent, ‘Closing the Gap’ indicators remain resistant to change. It has become increasingly apparent that progress has been hindered by persistent administration and implementation issues in Indigenous Affairs, especially with the funding modalities deployed. This study uses the remote Queensland Indigenous community of Aurukun as a case study to examine the effectiveness and evaluation problems arising from overlapping programmes delivered to Aurukun children and youth (5–18 years of age). It documents programmatic crowding occurring in Aurukun, which has the potential to place considerable demands on the intended participants, and results in hybridised effects that are not understood. Within this context, robust evaluation – even through the use of sophisticated methods – is near impossible.  相似文献   
949.
950.

China’s rise as a global power corresponded with a diminution of Taiwanese diplomacy, which has left Central America as the last region to host a continuous bloc of countries that recognize the ROC. In this article, we argue that China’s success in gaining diplomatic recognition from Taiwan’s former allies has largely resulted from China's economic policy, specifically its promises of large-scale infrastructure projects and the integration of Central American economies with Chinese markets. However, there are limits to how far China has advanced in gaining full recognition from the region. The competing political and economic interests of China, Taiwan, the United States, and the Central American countries themselves, continue to influence patterns of diplomatic switching. More specifically, we argue that the threat of punitive measures from the United States combined with a turn in Taiwanese diplomacy toward assistance efforts to combat Covid-19 may deter future switching in the short to medium-term. Our analysis offers case studies of four Central American countries (Costa Rica, Panama, El Salvador and Nicaragua) to illustrate the multi-year processes by which China’s economic strategy leads to diplomatic switching and examine the paths ahead for the remaining holdouts facing the prospect of economic and political penalties by the United States.

  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