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   11699篇
  免费   607篇
各国政治   586篇
工人农民   396篇
世界政治   790篇
外交国际关系   353篇
法律   7838篇
中国共产党   1篇
中国政治   72篇
政治理论   2203篇
综合类   67篇
  2023年   175篇
  2021年   85篇
  2020年   202篇
  2019年   219篇
  2018年   254篇
  2017年   304篇
  2016年   296篇
  2015年   280篇
  2014年   255篇
  2013年   1217篇
  2012年   278篇
  2011年   285篇
  2010年   303篇
  2009年   314篇
  2008年   288篇
  2007年   281篇
  2006年   290篇
  2005年   277篇
  2004年   289篇
  2003年   261篇
  2002年   240篇
  2001年   458篇
  2000年   398篇
  1999年   338篇
  1998年   163篇
  1997年   116篇
  1996年   109篇
  1995年   133篇
  1994年   136篇
  1993年   132篇
  1992年   234篇
  1991年   236篇
  1990年   237篇
  1989年   234篇
  1988年   198篇
  1987年   211篇
  1986年   217篇
  1985年   231篇
  1984年   177篇
  1983年   192篇
  1982年   130篇
  1981年   123篇
  1980年   98篇
  1979年   151篇
  1978年   121篇
  1977年   89篇
  1975年   92篇
  1974年   113篇
  1973年   107篇
  1972年   85篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
11.
This research note critically evaluates conventional methods for allocating homicides with an unknown victim/offender relationship to meaningful categories, and it proposes an alternative approach. We argue that conventional methods are based on a problematic assumption, namely, that the missing data mechanism is “ignorable.” As an alternative to these methods, we propose an imputation algorithm derived from a log‐multiplicative model that does not require this assumption. We apply this technique to estimate levels of homicides disaggregated by victim/offender relationship using the Federal Bureau of Investigation's Supplementary Homicide Report (SHR) data for 1996 and 1997, and we compare the resulting estimates with those obtained from the application of conventional procedures. Our results yield a larger proportion of stranger homicides than are obtained from the conventional methods.  相似文献   
12.
13.
14.
15.
During the past few decades traditional state‐centred governing arrangements have been critiqued and replaced by alternative modes of governance. Higher education is one of the public sectors where such shifts in governance have been seen. As a consequence of the reshuffling of authority and responsibilities across the different levels in Dutch higher education, universities as organizations have become important foci of attention in the system’s coordination. The main question addressed in this article is to what extent we can speak of an organizational transformation of Dutch universities. Based on conceptual ideas from researchers such as Greenwood and Hinings (1996), Ferlie et al. (1996) , and Brunsson and Sahlin‐Andersson (2000) , we use a framework that focuses attention on the concepts of the construction of identity, hierarchy and rationality to systematically analyse the various aspects of transformations of professional organizations.  相似文献   
16.
Drawing on the strategic surprise, warning-response, and foreign policy literature, this article argues that the September 11 terror attacks should be regarded as a strategic surprise and examines a number of key factors that contributed to vulnerability and inhibited vigilance. Three broad explanatory "cuts" derived from the literature—psychological, bureau-organizational, and agenda-political—are deployed to sift through the rapidly expanding empirical record in an effort to shed light on the processes and contextual factors that left the United States vulnerable to the attacks. The article aims to improve our understanding of generic processes and practices that enhance or detract from vulnerability and vigilance.  相似文献   
17.
The DNA commission of the International Society of Forensic Genetics (ISFG) was convened at the 21st congress of the International Society for Forensic Genetics held between 13 and 17 September in the Azores, Portugal. The purpose of the group was to agree on guidelines to encourage best practice that can be universally applied to assist with mixture interpretation. In addition the commission was tasked to provide guidance on low copy number (LCN) reporting. Our discussions have highlighted a significant need for continuing education and research into this area. We have attempted to present a consensus from experts but to be practical we do not claim to have conveyed a clear vision in every respect in this difficult subject. For this reason, we propose to allow a period of time for feedback and reflection by the scientific community. Then the DNA commission will meet again to consider further recommendations.  相似文献   
18.
19.
20.
This article examines constraints in development bureaucracies in intensifying the use of microcomputers as they move beyond processing applications to analysing applications. The work is based on the experience of several ministries of the Government of Kenya. Processing applications involve throughput of data and are relatively simple. Analysing applications, in contrast, are more complex and include data assembly, sensitivity analysis, and modelling. The article argues that processing applications are more compatible with the administrative cultures, bureaucratic functions, personnel skill levels and organizational structures of development bureaucracies. Analysing applications are less compatible because they require a level of training and motivation uncommon in development bureaucracies. Analysing applications are further thwarted by constraints in the supply of relevant information and the lack of demand for analysis by decision-makers. A four-cell matrix is developed which explains these constraints. The article concludes with several recommendations for encouraging microcomputer-based analysis, but cautions that processing applications will continue to dominate for the foreseeable future.  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