全文获取类型
收费全文 | 1362篇 |
免费 | 67篇 |
专业分类
各国政治 | 14篇 |
工人农民 | 2篇 |
世界政治 | 3篇 |
外交国际关系 | 448篇 |
法律 | 715篇 |
中国共产党 | 8篇 |
中国政治 | 25篇 |
政治理论 | 97篇 |
综合类 | 117篇 |
出版年
2024年 | 2篇 |
2023年 | 7篇 |
2022年 | 7篇 |
2021年 | 24篇 |
2020年 | 45篇 |
2019年 | 47篇 |
2018年 | 48篇 |
2017年 | 16篇 |
2016年 | 17篇 |
2015年 | 16篇 |
2014年 | 30篇 |
2013年 | 30篇 |
2012年 | 67篇 |
2011年 | 81篇 |
2010年 | 64篇 |
2009年 | 114篇 |
2008年 | 156篇 |
2007年 | 245篇 |
2006年 | 97篇 |
2005年 | 88篇 |
2004年 | 54篇 |
2003年 | 45篇 |
2002年 | 39篇 |
2001年 | 29篇 |
2000年 | 17篇 |
1999年 | 8篇 |
1998年 | 7篇 |
1997年 | 4篇 |
1996年 | 3篇 |
1995年 | 3篇 |
1994年 | 3篇 |
1993年 | 2篇 |
1992年 | 3篇 |
1991年 | 1篇 |
1990年 | 1篇 |
1989年 | 1篇 |
1988年 | 3篇 |
1987年 | 1篇 |
1986年 | 1篇 |
1985年 | 1篇 |
1981年 | 1篇 |
1978年 | 1篇 |
排序方式: 共有1429条查询结果,搜索用时 406 毫秒
111.
Seismologists have reported that a majority of recent earthquakes in Oklahoma have been triggered by the activities of oil and gas companies. Despite this fact, there is evidence of strong opposition toward earthquake mitigation policy. In this article, we argue that how individuals define issues affect their policy choice. Furthermore, we incorporate the concept of venue shopping from the literature on macro theories of the policy process to investigate the effect of problem definition in shaping individual venue preference for policy choice. Using unique survey data, we find that problem definition, particularly issue causality and issue image, is strongly related to individual support for earthquake mitigation policy. However, a more nuanced relationship between individual problem definition and venue preference is observed. Our findings contribute to scholarly endeavors to understand the politics of problem definition at an individual level, which may be the precursor of understanding policy choices at the institutional level. 相似文献
112.
Among the more recognizable programs related to natural and sustainable food is the United States Department of Agriculture’s National Organic Program. Although the robustness of the organic food market is difficult to contest, many debate the extent to which U.S. organic policy outcomes adequately serve consumers and the organic agriculture producers they rely on. This paper engages the debate from the perspective of certified organic producers. Drawing on the results of a nationwide survey of USDA‐certified producers, we first provide a snapshot of how producers assess the environmental, consumer, and market impacts of U.S. organic food policy. We then examine the extent to which organic producers’ policy impact perceptions are associated with their alignment with an “organic ethos”—understood as producers’ commitment to core organic principles and the organic movement. The paper highlights producers’ values as perceptual filters and cognitive mechanisms that help shape producers’ policy impacts perceptions, illustrating a contributing factor to the enduring nature of organic policy debates. 相似文献
113.
Jennifer A. Kagan 《政策研究评论》2019,36(2):217-241
Renewable portfolio standards (RPS) are an important policy tool for reducing carbon emissions and advancing the global shift toward renewable energy. As the U.S. federal government backs away from commitments to reduce greenhouse gas emissions, subnational governments play an increasingly important role in mitigating climate change. In June 2015, Hawaii became the first state in the United States to adopt a 100% RPS. Through understanding the conditions that gave rise to Hawaii’s RPS, policy actors will be better informed as they navigate policy processes in other states and jurisdictions. This study uses Kingdon’s Multiple Streams Framework (MSF) to explore the policy process that led to Hawaii’s 100% RPS. Data were collected during the summer of 2016 via interviews with 25 key policy actors and informants in Hawaii. Expectations based on the MSF are confirmed, and the results suggest factors that might be included or explored in future studies of RPS adoption. 相似文献
114.
Leeann Sullivan 《政策研究评论》2019,36(2):242-261
Governance scholars have long championed the adaptive utility of decentralized management institutions, in part due to their ability to bring diverse stakeholders into decision‐making processes. However, research into the link between decentralization and participation often looks at policy design but bypasses important system feedbacks that shape sustained participation over time. To paint a more robust picture detailing how decentralization and participation are related, this paper uses a complex systems framework to explore interacting structural, operational, and cultural components of decentralized wildlife governance institutions in the United States and Botswana. Through this comparative analysis, I argue that the landscape of public participation in decentralized governance institutions appears to be significantly impacted by three factors: 1) how decentralization processes occurred, 2) where in the process of decision making participation is situated, and 3) perceptions of power distribution between groups with competing interests. 相似文献
115.
《Science & justice》2022,62(2):193-202
Cyanide is a powerful and rapidly acting poison. In Japan, cyanide poisoning is rare, and regular cyanide testing can be costly and time consuming. In contrast, alcohol analysis is routinely performed in most forensic laboratories. In this study, we attempted to develop a method for the simultaneous quantification of cyanide and alcohols in blood using headspace gas chromatography (HS–GC). As nitrogen-phosphorus detection (NPD) is more sensitive to hydrogen cyanide than mass spectrometry (MS), a Deans switch was used to switch the detectors during a single run. The separation provided by three analytical columns, PoraBOND Q, CP-Sil 5 CB, and HP-INNOWax, was investigated, and PoraBOND Q was selected. The use of HS–GC–MS/NPD with a Deans switch enabled the simple and simultaneous quantification of cyanide, ethanol, and 1-propanol. Eighteen other volatile compounds were detected in the SIM/scan mode of the MS. 相似文献
116.
周志华 《广西政法管理干部学院学报》2009,24(6):46-50,59
权利存在着应有权利、法定权利和实有权利三种状态。权利的实现是一个从应有权利到法定权利再到实有权利的动态过程。在我国现阶段,无障碍通行权已从应有状态上升到法定状态,完成了权利实现的第一步。但无障碍通行权的实有状态与法定状态之间还存在较大的差距,主要体现为无障碍环境的缺乏。为保证残疾人获得平等的生存和发展机会,国家和社会应采取措施,积极地营建无障碍环境,促使这项权利从法定状态上升到实有状态。 相似文献
117.
经过19世纪后期数十年的发展,吉隆坡由一个小城逐渐变成雪兰莪州的首府,来自中国的福建人的人数也逐渐增长。虽然并未能如广府人和客家人的数量之多,但也最终成为吉隆坡第三大方言社群。通过分析30年代福建义山收据,可以发现闽南方言群占福建籍人的八成以上。其中泉州下辖的安溪、南安、永春三县又分别成为其中占人数前三位的县份社群。20世纪上半叶安溪、南安、永春三县籍的成功"新客"就对吉隆坡福建人的形成和发展带来深远的影响。 相似文献
118.
119.
Wolf-Dieter Arnold 《wohnrechtliche bl?tter: wobl》2008,21(11):337-338
§ 2 der Sachbezugsverordnungen wird als gesetzwidrig aufgehoben (wobei die Aufhebung der zuletzt genannten Bestimmung mit
Ablauf des 31. 12. 2008 in Kraft tritt). 相似文献
120.
应用RT-PCR和nPCR扩增由4株甘肃省近期(1997-1998)猪瘟流行野毒株的E2基因,将其克隆到pGEMTEasy载体上,经转化、筛选、鉴定后,测出核苷核序列.4株流行毒株的E2基因核苷酸序列同源性为89.2%-99.7%,相应的氨基酸序列同源性为93.8%-99.0%.这4株流行毒株;与C-株(疫苗种毒)E2基因的核苷酸序列同源性为82.2%-84.3%,相应的氨基酸序列同源性为87.9%-90.2%,表明近期猪瘟流行毒株与C-株的gp55蛋白之间存在一定的差异. 相似文献