全文获取类型
收费全文 | 1546篇 |
免费 | 101篇 |
专业分类
各国政治 | 103篇 |
工人农民 | 56篇 |
世界政治 | 159篇 |
外交国际关系 | 147篇 |
法律 | 688篇 |
中国共产党 | 1篇 |
中国政治 | 17篇 |
政治理论 | 454篇 |
综合类 | 22篇 |
出版年
2024年 | 3篇 |
2023年 | 23篇 |
2022年 | 8篇 |
2021年 | 15篇 |
2020年 | 48篇 |
2019年 | 67篇 |
2018年 | 70篇 |
2017年 | 79篇 |
2016年 | 74篇 |
2015年 | 56篇 |
2014年 | 78篇 |
2013年 | 239篇 |
2012年 | 66篇 |
2011年 | 65篇 |
2010年 | 52篇 |
2009年 | 66篇 |
2008年 | 61篇 |
2007年 | 58篇 |
2006年 | 52篇 |
2005年 | 50篇 |
2004年 | 51篇 |
2003年 | 41篇 |
2002年 | 43篇 |
2001年 | 34篇 |
2000年 | 29篇 |
1999年 | 18篇 |
1998年 | 20篇 |
1997年 | 19篇 |
1996年 | 10篇 |
1995年 | 25篇 |
1994年 | 5篇 |
1993年 | 14篇 |
1992年 | 12篇 |
1991年 | 10篇 |
1990年 | 10篇 |
1989年 | 10篇 |
1988年 | 7篇 |
1987年 | 5篇 |
1986年 | 12篇 |
1985年 | 6篇 |
1984年 | 4篇 |
1983年 | 2篇 |
1982年 | 5篇 |
1981年 | 4篇 |
1980年 | 3篇 |
1979年 | 3篇 |
1978年 | 2篇 |
1977年 | 3篇 |
1976年 | 2篇 |
1973年 | 4篇 |
排序方式: 共有1647条查询结果,搜索用时 218 毫秒
331.
Astrid Brousselle Emmanuel Brunet-Jailly Christopher Kennedy Susan D. Phillips Kevin Quigley Alasdair Roberts 《Canadian public administration. Administration publique du Canada》2020,63(3):369-408
Several Canadian and international scholars offer commentaries on the implications of the COVID-19 pandemic for governments and public service institutions, and fruitful directions for public administration research and practice. This second suite of commentaries considers the challenges confronting governments as a result of the COVID-19 pandemic and in the decades to come with an increasingly broad lens: the need to understand and rethink the architecture of the state given recent and future challenges awaiting governments; the need to rethink government-civil society relations and policies to deliver services for increasingly diverse citizens and communities; the need for new repertoires and sensibilities on the part of governments for recognizing, anticipating, and engaging on governance risks despite imperfect expert knowledge and public skepticism; how the COVID-19 crisis has caused us to reconceive international and sub-national borders where new “borders” are being drawn; and the need to anticipate a steady stream of crises similar to the COVID-19 pandemic arising from climate change and related challenges, and develop new national and international governance strategies for fostering population and community resilience. 相似文献
332.
JenaMarie Baldaino MS Danica M. Ommen PhD Christopher P. Saunders PhD Jack Hietpas PhD JoAnn Buscaglia PhD 《Journal of forensic sciences》2021,66(1):83-95
Aluminum (Al) powders are commonly used in improvised explosive devices as metallic fuels, a component of explosive mixtures. These powders can be obtained readily from industrial‐scale and consumer products, and produced using unsophisticated “kitchen chemistry” techniques. This research demonstrates the potential of automated particle micromorphometry for comparisons between known source and questioned Al powders recovered from IEDs, as well as for insight into the method of Al powder manufacture. Al powder samples were obtained from legitimate manufacturers, and 56 samples were produced “in‐house” from Al‐containing spray paints and ball‐milled Al foils. Transmitted light microscope images of Al powder particles were acquired using an automated stage with automated z‐focus; 17 size and shape parameters were measured for all particles. Approximately 37,000–2,500,000 particles/sample were analyzed using an open‐source statistical package with customized code. Dimensionality reduction was required for processing the large datasets: eight of the 17 measured variables were selected based on inspection of the correlation matrix. Data from four subsamples from each of the 56 samples produced using “in‐house” methods were analyzed using ANOVA to assess the within‐ and between‐sample variation. High within‐sample variation was noted; however, ANOVA and post‐hoc Tukey's honestly significant difference (HSD) tests demonstrated that the between‐sample variation was substantially larger than the within‐sample variation. Each sample could be differentiated from all other samples in the test set. Future experiments will focus on ways to reduce the within‐sample variation, and additional statistical and microanalytical methods to classify sources and confidently constrain the method of Al powder manufacture. 相似文献
333.
Christopher L. Atkinson 《国际公共行政管理杂志》2020,43(13):1169-1182
ABSTRACT Governments have sought to respond to increasing pressures to accomplish aims with efficiency and at low cost. A perception of the potential for corruption and waste of public resources has been met with calls for transparency and accountability. Competition is believed to lead to impartial, optimal outcomes, but attention paid to competition in the literature suggests that the benefits are not universally clear. This paper considers ‘full and open competition’ as a policy promise, ethical obligation, and a matter of justice, drawing upon work of John Rawls and others, in the United States case. The research question is: What do Federal procurement data tell us about the nature of full and open competition in practice? This study draws upon contract data available from the U.S. Federal government, for fiscal years from 2015 to 2018. Through an ordinal regression, it is suggested that variation in the extent of competition results in part from size of project, size of the business (or potential business) receiving the project, and the industry classification, particularly in cases centering on commercial acquisitions. While ‘full and open competition’ is frequently employed, the difference between the normative value of the concept in statute, and practical outcomes in implementation, is clear. This difference has consequences for both vendors and the government. 相似文献
334.
335.
336.
337.
Is competency management a passing fad; is it a catch‐all term to cover diverse national patterns of development or a symptom of wider changes within bureaucracies? As the papers published here suggest, it is more likely to be a passing fad in Europe than the USA. Competency management addresses rather different agendas in different countries and while it does not embrace as diverse a collection of activities as ‘new public management’, there is substantial range in the issues it does address. European experience suggests competency is more likely to be ephemeral and concerned with repackaging rather than bringing something substantially new to personnel management in the upper reaches of civil services. Without taking too rosy a view of US experience, there may be a stronger case for arguing that contemporary competency management approaches there have brought something new to a longer standing debate in public and private management. 相似文献
338.
339.
340.