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   4191篇
  免费   158篇
各国政治   212篇
工人农民   114篇
世界政治   350篇
外交国际关系   690篇
法律   1641篇
中国共产党   2篇
中国政治   37篇
政治理论   1261篇
综合类   42篇
  2021年   29篇
  2020年   44篇
  2019年   70篇
  2018年   106篇
  2017年   116篇
  2016年   114篇
  2015年   77篇
  2014年   132篇
  2013年   649篇
  2012年   134篇
  2011年   195篇
  2010年   148篇
  2009年   175篇
  2008年   137篇
  2007年   134篇
  2006年   143篇
  2005年   151篇
  2004年   144篇
  2003年   139篇
  2002年   150篇
  2001年   76篇
  2000年   77篇
  1999年   65篇
  1998年   59篇
  1997年   60篇
  1996年   38篇
  1995年   51篇
  1994年   58篇
  1993年   52篇
  1992年   40篇
  1991年   53篇
  1990年   36篇
  1989年   51篇
  1988年   30篇
  1987年   36篇
  1986年   40篇
  1985年   42篇
  1984年   31篇
  1983年   43篇
  1982年   41篇
  1981年   51篇
  1980年   36篇
  1979年   39篇
  1978年   35篇
  1977年   19篇
  1976年   32篇
  1975年   17篇
  1974年   19篇
  1973年   20篇
  1969年   17篇
排序方式: 共有4349条查询结果,搜索用时 15 毫秒
71.
Many governmental results-based management systems have not produced the expected positive effects. This article analyzes the reasons for this common disappointment by looking at three components of results-based management—results-specific information, capacities, and incentives—and concludes that incentives are often the least developed. It then synthesizes a simple framework for evaluating the efficacy of results-oriented incentives. To be successful, results-specific incentives must be tailored to fit four program characteristics: timeliness, political environment, clarity of the cause-and-effect chain, and tightness of focus. This framework suggests that some systems put too exclusive an emphasis on budgetary incentives and could be strengthened by emphasizing personnel-system rewards, especially those that look beyond business models.  相似文献   
72.
This article focuses on whether the provision of 'objectively' correct information to voters about where parties stand on an issue affects their placement of the parties, and ultimately their own position, on that issue. Classic theories of how mass publics make voting decisions assume that voters are able relatively accurately to place themselves and the parties on various issue dimensions. While these assumptions have been challenged, it is generally assumed that the provision of new information makes voters' placements more informed. We explicitly test this idea using a survey experiment focusing on one political issue – European integration. In the experiment, all respondents were twice asked to place the three main British parties and themselves on a bipolar scale of European integration. This was done towards the beginning, and then at the end of the survey. Most respondents were also given information on the 'informed' positions of the parties, derived from expert survey placement. Our analyses indicate that individuals' placements did change, and the tendency was related to both political sophistication and the inherent difficulty of placing the party. Only less sophisticated voters updated their placements, and these changes are concentrated on the placement of the Labour party, where the elite stance on Europe has been more conflicted. For all respondents we do not detect any corresponding changes in self-placement that would be congruent with 'cueing' effects.  相似文献   
73.
It is shown in this article how theories justifying local government in Britain are largely based on the expedience of providing administrative efficiency or stable democracy for the central state rather than ethical grounds that justify local government as an independent entity in its own right. The article critically reviews the development of theories justifying local government within Britain and argues that it is possible on the basis of Mill's arguments within On Liberty to establish a strong ethical justification for local government. It is shown how Mill did not develop this line of thought but established substantive arguments concerning the value of local government for securing a stable liberal democracy and how successive mainstream theorists have modified but not substantially departed from this approach.  相似文献   
74.
Opinion Taking within Friendship Networks   总被引:2,自引:0,他引:2  
Communication within friendship networks can provide gains in efficiency that help individuals enrich their understanding of politics. Through two panel survey experiments, we demonstrate that the dissemination of an individual's opinion about the hazards posed by public policies can have both durable and significant effects on the policy judgments of friends. These effects are conditioned by both the content of the communication and the recipient's level of political awareness. Opinions emphasizing potential risks carry more weight than those that attempt to alleviate concerns about potential risks. Moreover, opinion transmission is more effective for subjects who are less politically aware when policy issues are salient; but when the political issue is more esoteric, friends who are more politically aware evidence greater opinion change.  相似文献   
75.
We investigate the political economy of IMF forecasts with data for 157 countries (1999–2005). Generally, we find evidence of forecast bias in growth and inflation. Specifically, we find that countries voting with the United States in the UN General Assembly receive lower inflation forecasts as domestic elections approach. Countries with large loans outstanding from the IMF also receive lower inflation forecasts, suggesting that the IMF engages in “defensive forecasting.” Finally, countries with fixed exchange rate regimes receive lower inflation forecasts, suggesting the IMF desires to preserve stability as inflation can have detrimental effects under such an exchange rate regime.  相似文献   
76.

This paper explores the parliamentary activity of six Canadian prime ministers from St Laurent to Mulroney. Employing Hansard, each parliamentary utterance by a prime minister from 1949 to 1993 has been coded into one of four categories: answers to questions, speeches delivered, statements made and other interventions. Voting records have also been coded. Employing this database, the analysis compares and contrasts the prime ministers in terms of their political personalities and explores the overall scope and character of prime‐ministerial activism in the House throughout the past 40 years. Canadian profiles are compared with already existing British data in order to test generalisations concerning the diminishing presence of prime ministers in parliaments in Canada and Britain.  相似文献   
77.
78.
79.
The forensic science community raised the need for improved evidence recognition, collection, and visualization analytical instrumentation for field and laboratory use. While the 3D optical techniques for imaging static objects have been extensively studied, there is still a major gap between current knowledge and collecting high‐quality footwear and tire impression evidence. Among optical means for 3D imaging, digital fringe projection (DFP) techniques reconstruct 3D shape from phase information, achieving camera‐pixel spatial resolution. This paper presents a high‐resolution 3D imaging technology using DFP techniques dedicated to footwear and tire impression capture. We developed fully automated software algorithms and a graphical user interface (GUI) that allow anyone without training to operate for high‐quality 3D data capture. We performed accuracy evaluations and comparisons comparing with the commercial high‐end 3D scanner and carried out qualitative tests for various impressions comparing with the current practices. Overall, our technology achieves similar levels of accuracy and resolution with a high‐end commercially available 3D scanner, while having the merits of being (1) more affordable; (2) much easier to operate; and (3) more robust. Compared with the current practice of casting, our technology demonstrates its superiority because it (1) is non‐destructive; (2) collects more evidence detail than casts, especially when an impression is fragile; (3) requires less time and money to collect each piece of evidence; and (4) results in a digital file that can easily be shared with other examiners.  相似文献   
80.
High‐throughput sequencing (HTS) of large panels of single nucleotide polymorphisms (SNPs) provides an alternative or complimentary approach to short tandem repeats (STRs) panels for the analysis of complex DNA mixture forensic samples. For STRs, methods to estimate individual contribution concentrations compare capillary electrophoresis peak heights, peak areas, or HTS allele read counts within a mixture. This article introduces three approaches (mean, median, and slope methods) for estimating individual DNA contributions to forensic mixtures for HTS/massively parallel sequencing (MPS) SNP panels. For SNPs, the major:minor allele ratios or counts, unique to each contributor, were compared to estimate contributor proportion within the mixture using the mean, median, and slope intercept for these alleles. The estimates for these three methods were typically within 5% of planned experimental contributions for defined mixtures.  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