全文获取类型
收费全文 | 15229篇 |
免费 | 711篇 |
专业分类
各国政治 | 784篇 |
工人农民 | 605篇 |
世界政治 | 1274篇 |
外交国际关系 | 658篇 |
法律 | 9676篇 |
中国政治 | 85篇 |
政治理论 | 2790篇 |
综合类 | 68篇 |
出版年
2023年 | 95篇 |
2021年 | 129篇 |
2020年 | 312篇 |
2019年 | 379篇 |
2018年 | 469篇 |
2017年 | 503篇 |
2016年 | 503篇 |
2015年 | 373篇 |
2014年 | 455篇 |
2013年 | 1754篇 |
2012年 | 427篇 |
2011年 | 426篇 |
2010年 | 380篇 |
2009年 | 412篇 |
2008年 | 410篇 |
2007年 | 413篇 |
2006年 | 384篇 |
2005年 | 357篇 |
2004年 | 412篇 |
2003年 | 338篇 |
2002年 | 284篇 |
2001年 | 636篇 |
2000年 | 546篇 |
1999年 | 419篇 |
1998年 | 199篇 |
1997年 | 155篇 |
1996年 | 132篇 |
1995年 | 146篇 |
1994年 | 148篇 |
1993年 | 138篇 |
1992年 | 277篇 |
1991年 | 294篇 |
1990年 | 272篇 |
1989年 | 267篇 |
1988年 | 239篇 |
1987年 | 263篇 |
1986年 | 218篇 |
1985年 | 221篇 |
1984年 | 197篇 |
1983年 | 194篇 |
1982年 | 143篇 |
1981年 | 149篇 |
1980年 | 92篇 |
1979年 | 184篇 |
1978年 | 113篇 |
1977年 | 82篇 |
1975年 | 83篇 |
1974年 | 101篇 |
1973年 | 111篇 |
1972年 | 82篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
31.
Stephen B. Peterson 《公共行政管理与发展》1991,11(5):491-510
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
32.
James K. Galbraith 《Journal of policy analysis and management》1991,10(1):134-135
33.
Marianne Junger Lynette Feder Joy Clay Sylvana M. Côté David P. Farrington Kate Freiberg Vicente Garrido Genovés Ross Homel Friedrich Lösel Matthew Manning Paul Mazerolle Rob Santos Martin Schmucker Christopher Sullivan Carole Sutton Tom van Yperen Richard E. Tremblay 《European Journal on Criminal Policy and Research》2007,13(3-4):327-356
34.
Panagiotis K. Staikouras Christos K. Staikouras Maria-Eleni K. Agoraki 《European Journal of Law and Economics》2007,23(1):1-27
Banks are “special” financial institutions generating distinct corporate governance challenges. The present paper examines
the relationship between two of the most pertinent corporate governance factors—that is, the size of the Board of Directors
and the proportion of non-executive directors—and firm performance on a sample of 58 large European banks over the period
2002–2004. The empirical analysis embraces a number of bank-specific variables. Our results reveal that bank profitability
is negatively related to the size of the Board of Directors, while the impact of Board composition, although positive in all
models, is, in most cases, insignificant. The results are robust after controlling for firm-specific variables.
相似文献
35.
Bernhard König 《Juristische Bl?tter》2007,129(12):804-810
Klagen gegen einen internationalen Sportverband, die auf Feststellung der Unwirksamkeit einer Sperre eines bei einem nationalen
Sportverband besch?ftigten Trainers von Wettbewerben dieses Sportverbandes und auf Unterlassung von Handlungen, die eine Akkreditierung
verhindern bzw erschweren, gerichtet sind, unterliegen der ausschlie?lichen inl?ndischen Gerichtsbarkeit des Sitzstaates;
eine Verbindung solcher Klagen mit einer gegen den nationalen Verband gerichteten gleichartigen Klage ist daher unzul?ssig.
– Eine damit zusammenh?ngende Schadenersatzklage gegen den internationalen Verband steht auch nicht in dem von Art 6 Nr 1
LGVü geforderten Zusammenhang mit einer Klage gegen den nationalen Verband wegen Aufl?sung des Trainervertrages aufgrund der
Sperre. 相似文献
36.
37.
K. Minakata O. Suzuki Y. Ishikawa H. Seno M. Asano 《Forensic Science International Supplement Series》1991,50(2)
A simple and sensitive method is described for quantitative analysis of chlorpromazine in blood, serum, urine and tissue homogenate. The chlorpromazine cation radical produced by adding perchloric acid and 2,3-dichloro-5,6-dicyano-p-benzoquinone to the sample can be detected by the ESR method at room temperature. The sensitivity limit is 10 ng, that is, 20 μl of the solution containing 0.5 μg chlorpromazine/ml. The time needed for the measurement is within 10 min. The chlorpromazine radical thus produced is very stable; for example, 95% of the radical was observed after 24 h. The advantage of this method is discussed by comparing with the ordinary spectrophotometry which requires the purification of the sample. 相似文献
38.
Laura K. Landolt 《Global Society》2007,21(3):393-414
To demonstrate that norms have independent causal power, constructivists de-emphasise material factors related to state interests and highlight social factors. Similarly, they conceptualise international organisations as autonomous from state influence, and focus on cases featuring non-state actors that stimulate a “tipping point” of norm diffusion among states in advance of state sponsorship. By contrast, this article utilises an historical materialist approach that admits both social and material data to examine the contrasting case of population control. It finds that US corporate foundations, eugenist demographers, feminist birth control activists and related NGOs conceptualised and promoted population control in the United States, at the United Nations, and across developing countries. However, the tipping point of norm diffusion occurred only after the United States publicly advocated population control. Indeed, material and social factors were inextricably bound together. 相似文献
39.
40.
Esophageal and tracheal fistulas, which occur in 0.05% of medicolegal autopsies, were demonstrated in three cases by a postmortem radiographic technique using silicone rubber/lead oxide as a contrasting medium that vulcanizes at room temperature. In one 83-year-old male, a tracheoesophageal fistula was detected, which had developed after surgical repair of an esophageal rupture caused by a flexible fiberoptic endoscope. In a second case, carcinoma of the esophagus in a 78-year-old male had eroded the trachea and arcus of the aorta creating a fatal tracheoesophagoaortic fistula. In a third case, 55-year-old female developed a tracheobrachicephalic artery fistula as a result of an infiltrating cystic adenocarcinoma of the trachea, resulting in a fatal hemorrhage into the trachea. The results of this study indicate that diagnostic radiologic methods using a vulcanized contrasting medium are useful in supplementing normal dissection in autopsy cases with suspected fistulas of the esophagus or trachea. 相似文献