全文获取类型
收费全文 | 416篇 |
免费 | 21篇 |
专业分类
各国政治 | 24篇 |
工人农民 | 23篇 |
世界政治 | 46篇 |
外交国际关系 | 32篇 |
法律 | 228篇 |
中国共产党 | 1篇 |
中国政治 | 4篇 |
政治理论 | 77篇 |
综合类 | 2篇 |
出版年
2023年 | 6篇 |
2022年 | 6篇 |
2021年 | 9篇 |
2020年 | 10篇 |
2019年 | 11篇 |
2018年 | 12篇 |
2017年 | 16篇 |
2016年 | 18篇 |
2015年 | 16篇 |
2014年 | 15篇 |
2013年 | 68篇 |
2012年 | 18篇 |
2011年 | 20篇 |
2010年 | 13篇 |
2009年 | 11篇 |
2008年 | 24篇 |
2007年 | 27篇 |
2006年 | 23篇 |
2005年 | 22篇 |
2004年 | 22篇 |
2003年 | 14篇 |
2002年 | 5篇 |
2001年 | 6篇 |
2000年 | 6篇 |
1999年 | 3篇 |
1998年 | 7篇 |
1997年 | 7篇 |
1996年 | 1篇 |
1995年 | 2篇 |
1994年 | 3篇 |
1992年 | 1篇 |
1990年 | 2篇 |
1988年 | 1篇 |
1985年 | 1篇 |
1984年 | 1篇 |
1983年 | 2篇 |
1977年 | 2篇 |
1976年 | 1篇 |
1975年 | 2篇 |
1974年 | 1篇 |
1973年 | 1篇 |
1968年 | 1篇 |
排序方式: 共有437条查询结果,搜索用时 31 毫秒
1.
Beatriz Martínez Luis Caraballo Francisco Barn Leonor Gusmo Antonio Amorim ngel Carracedo 《Forensic Science International Supplement Series》2006,160(2-3):221-223
Allele frequencies, together with some parameters of forensic interest were estimated for nine STRs included in the AmpF/STR Profiler kit (CSF1PO, D3S1358, D5S818, D7S820, D13S317, FGA, TH01, TPOX and vWA) in a sample of 215 unrelated individuals from Cartagena (Colombia). For all loci, no significant deviations from Hardy-Weinberg equilibrium were observed. Comparative analysis results between our data and those from other Colombian and African population samples revealed significant differences, except with two Colombian Caribbean Coast sub-regions. 相似文献
2.
3.
4.
5.
6.
Jose I. Tavara 《Bulletin of Latin American research》2021,40(4):501-517
This article examines the new governance of the Peruvian university system, which evolved in response to market liberalisation and weak quality assurance mechanisms. New actors and commercial interests emerged, building their network of relationships within the political arena. With the passing of a new Universities Law in 2014, ambitious reforms were set in motion, designed to reverse the decline in the quality of higher education. This study examines these reforms, focusing on whether and how they are changing the governance and structure of the system. It also identifies some conceptual and design flaws, such as the weaknesses of the main steering body and the accreditation regime, as well as limitations on the independence of the regulatory agency. 相似文献
7.
正From their beginnings——in the glory days of the Han Dynasty in the East and the Roman Empire in the West—the linkages between our countries and even those of parts of Africa had ranged beyond the exchange of material goods.COMMERCE,CULTURE,CIVILIZATION From the beginning,East-West trade transcended the limits of commerce.From the beginning,it 相似文献
8.
9.
10.
Gonzalo Ordez‐Matamoros Michelle Vernot‐Lpez Ornella Moreno‐Mattar Luis Antonio Orozco 《政策研究评论》2020,37(2):174-200
International research collaboration (IRC) is associated with both positive and negative effects on the performance of research in emerging economies. While some authors claim that North–South collaborations improve scientific quality and visibility for Southern countries, others claim that it may entail the reorientation of research to comply with Northern agendas. South–South collaborations are thought to increase the focus on local affairs, therefore leading to a relatively small number of scientific international publications appearing in “high quality” journals. Research on the impact of IRC beyond publications in international journals has been neglected despite the importance of other products in knowledge creation. This research uses a broad range of scientific outputs to empirically assess such assumptions and explore the outcomes of IRC in Colombia. Results from multivariate regressions and nonparametric analyses show that, contrary to common assumptions, Colombian research teams collaborating with partners from the global South report higher scientific production, while those collaborating with Northern countries seem to contribute to local knowledge the most. 相似文献