全文获取类型
收费全文 | 530篇 |
免费 | 32篇 |
专业分类
各国政治 | 10篇 |
工人农民 | 3篇 |
世界政治 | 4篇 |
外交国际关系 | 45篇 |
法律 | 280篇 |
中国共产党 | 22篇 |
中国政治 | 22篇 |
政治理论 | 80篇 |
综合类 | 96篇 |
出版年
2023年 | 4篇 |
2022年 | 6篇 |
2021年 | 13篇 |
2020年 | 34篇 |
2019年 | 30篇 |
2018年 | 25篇 |
2017年 | 9篇 |
2016年 | 11篇 |
2015年 | 12篇 |
2014年 | 11篇 |
2013年 | 15篇 |
2012年 | 26篇 |
2011年 | 23篇 |
2010年 | 27篇 |
2009年 | 52篇 |
2008年 | 59篇 |
2007年 | 71篇 |
2006年 | 33篇 |
2005年 | 21篇 |
2004年 | 16篇 |
2003年 | 16篇 |
2002年 | 12篇 |
2001年 | 5篇 |
2000年 | 10篇 |
1999年 | 3篇 |
1998年 | 1篇 |
1997年 | 3篇 |
1996年 | 2篇 |
1994年 | 2篇 |
1992年 | 3篇 |
1990年 | 1篇 |
1989年 | 1篇 |
1988年 | 1篇 |
1986年 | 1篇 |
1984年 | 1篇 |
1983年 | 1篇 |
1981年 | 1篇 |
排序方式: 共有562条查询结果,搜索用时 46 毫秒
141.
Adam M. Brewer 《政策研究评论》2019,36(4):497-522
Policy narratives play an important role in the policy process. Often policy narratives originate from advocacy coalitions seeking increased support from the public for their policy stance. Although most Narrative Policy Framework studies have focused on national policy issues, this study examines a state and local economic development project by exploring the policy narratives from competing coalitions in favor and opposed to the project. Specifically, in the Portland–Vancouver area of Oregon and Washington, local policy discussions have been dominated by a proposal for a new mega bridge on Interstate‐5 connecting the two cities across the Columbia River. A new government agency (CRC—Columbia River Crossing) was formed for the implementation of this project. Upon approval of a proposal, CRC experienced heavy backlash from citizens, local businesses, community leaders, and other stakeholders leading to the formation of two competing coalitions in opposition and support of the bridge. This study, using content analysis of 370 public documents, finds that competing coalitions utilize policy narratives in strategic ways to characterize the opposing coalition, themselves, and other actors in the policy subsystem. This study also suggests that the strength and cohesion of a coalition's narrative contributes to its policy success and the winning/losing status of a coalition potentially determines the types of strategies they will use. Last, this study introduces and tests a new narrative strategy called the impotent shift testing a coalition's strategic use of the victim character. 相似文献
142.
Governments play an active role in promoting corporate social responsibility and specifically environmental management system (EMS) programs, but few studies have examined the impact of such support on the decision of businesses to adopt EMS programs. We ask two questions in this paper: how does government support for EMS programs affect adoption of such programs? Second, what effect does this government support have on the pace of adoption of such programs? The answer to the first question can reveal how effective government programs are in boosting membership in EMS programs. The answer to the second reveals to what extent businesses within EU member states are converging upon particular EMS standards. We examine these questions in the context of the European Union’s Eco‐Management and Audit Scheme (EMAS), 2010–2014. There is significant variation in government support of EMAS across the EU and at the same time, EMAS competes for business attention with the more established ISO 14001. Our quantitative and qualitative analyses therefore reveal the effectiveness of government programs in boosting adoption, but also to the extent to which such programs cause convergence upon EMAS in the face of a competing standard such as ISO 14001. 相似文献
143.
Corrupt reciprocity - Experimental evidence on a men's game 总被引:1,自引:0,他引:1
Why are women regarded to be more resistant towards corruption? We address this question by letting students allotted the role of public servants receive a bribe and choose between reporting (whistleblowing), opportunism and reciprocity (delivery of a contract to the briber). Those acting as businesspersons choose whether or not to publicize at the end of the game. Male businesspersons more often depart from maximizing payoffs and allocate resources to punishing opportunistic public servants. Instead of acting opportunistically, some public servants tend to reciprocate or report. We find that female public servants are less inclined to reciprocate. Their resistance towards corruption is found to relate less to a willingness to report. Survey data from international households shows that men are more confident that bribes will be reciprocated, supporting our results. 相似文献
144.
Shashi Kiran Jasra Ph.D. Cherryl Badian B.F.Sc. Iain Macri B.F.Sc. Paul Ra M.D. 《Journal of forensic sciences》2012,57(6):1595-1600
Abstract: The diagnosis of early myocardial infarction (MI) after death, especially in the first few hours (c. 6 h) after the onset of MI, poses a challenge to the forensic pathologists. During this time, the damaged myocardium does not show grossly identifiable morphological changes and may not be recognized even with routine histological microscopic examination. However, the infarcted cardiac tissue releases certain chemicals that can be detected microscopically, two of these being cardiac troponin‐I (CT‐I) and complement C9 (C9). This study utilizes the importance of these two biomarkers immunohistochemically in an attempt to identify this early phase of MI. This study reveals that the early phase of MI of <6 h duration may be detected through immunohistochemical staining with CT‐I and C9. The ischemic/infarcted cardiac myofibers in the <6 h group display reduced/absent CT‐I staining as well as positive C9 staining. 相似文献
145.
于谦 《广西政法管理干部学院学报》2010,25(3):128-129
人们传统将听,说,读,写列为语言四大技能,排在首位便是“听”,可见听力理解能力是外语学习重要技能。而在TEM-4的考试中,听力也占了很大比重的分值,是考生必须拿下的“天王山”。本文将深入研究听力材料构成以及探讨应试技巧。 相似文献
146.
147.
氢氧化铝纳米颗粒对鸡新城疫抗原的免疫佐剂效应 总被引:2,自引:0,他引:2
以新城疫病毒为抗原,制备纳米氢氧化铝和常规氢氧化铝佐剂灭活疫苗,分别免疫20日龄雏鸡,比较了免疫后2~24 d的抗体效价和外周血淋巴细胞CD4、CD8分子mRNA的表达水平。结果显示,纳米氢氧化铝佐剂组抗体效价在免疫后第10 d达到峰值,为6.67±0.58,免疫保护期超过9 d,常规氢氧化铝佐剂组抗体效价在免疫后第10 d达到峰值,为4.33±0.58,免疫保护期小于7 d;与常规氢氧化铝佐剂组相比,纳米氢氧化铝佐剂组免疫后4~17 d的CD4以及10~17 d的CD8分子mRNA的表达水平显著提高,在峰值时后者的表达量为前者的2.0和1.9倍。结果表明,纳米氢氧化铝佐剂能辅佐鸡体产生比常规氢氧化铝佐剂更强烈的体液免疫和细胞免疫。 相似文献
148.
为人生作为中国现代精英知识分子对于五四新文学理论建构的主观性认知,与日本有着难以割舍的血缘联系。在日本体验的激活下,他们选择了弃医从文;在尚武精神的引领下,他们践行了轻文尚武;由此出现了从诗人到战士的作家身份转变和从艺术到人生的创作思想变迁。随着启蒙主义的激进介入,为人生严重背离了效法西方现代文学的原始初衷,却同时孕育了中国现代文学理论多源、多元(中国、日本、西方、俄苏)的母体形态。如果忽略了为人生内涵的丰富性,我们就会失去对中国现代文学基本性质的科学描述与整体把握。 相似文献
149.
以聚合酶链反应(PCR)、聚丙烯酰胺凝胶垂直电泳和银染法对中国100名无关个体小卫星区域p33.4位点的扩增片段长度多态性(Amp-FLPs)进行了研究,检出了8个等位基因。通过BIOTRAC系统进行数据处理.各等位基因重复单位的数目分别为7、10到15,其中在13~14之间发现一差值不足一个重复单位长度的罕见等位基因。片段长度分布于603~1115bP之间,基因频率分布于0.5~33.5%间,杂合度为64%,DP值为84.5%。对5个家庭25名相关个体进行分析,符合孟德尔遗传定律;对同一个体不同组织的DNA进行P33.4位点的分型研究表明,该技术适宜于法医物证检验。此外,本研究以Chelex处理不同检材制备DNA模板用于扩增,率先建立了比常规方法更快、更简便、更为实用的检验方法。 相似文献
150.