首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   3154篇
  免费   160篇
各国政治   134篇
工人农民   56篇
世界政治   87篇
外交国际关系   563篇
法律   1683篇
中国共产党   21篇
中国政治   129篇
政治理论   314篇
综合类   327篇
  2024年   4篇
  2023年   44篇
  2022年   41篇
  2021年   54篇
  2020年   124篇
  2019年   155篇
  2018年   143篇
  2017年   132篇
  2016年   100篇
  2015年   84篇
  2014年   100篇
  2013年   251篇
  2012年   161篇
  2011年   143篇
  2010年   73篇
  2009年   178篇
  2008年   238篇
  2007年   344篇
  2006年   179篇
  2005年   145篇
  2004年   129篇
  2003年   100篇
  2002年   95篇
  2001年   68篇
  2000年   60篇
  1999年   34篇
  1998年   22篇
  1997年   10篇
  1996年   10篇
  1995年   9篇
  1994年   12篇
  1993年   9篇
  1992年   10篇
  1991年   14篇
  1990年   5篇
  1989年   10篇
  1988年   8篇
  1987年   3篇
  1986年   7篇
  1985年   2篇
  1984年   1篇
  1981年   1篇
  1979年   1篇
  1978年   1篇
排序方式: 共有3314条查询结果,搜索用时 15 毫秒
991.
浅谈如何建立交通事故救援系统   总被引:2,自引:0,他引:2  
道路交通事故救援系统由先进的交通管理系统 (ATMS)与交通服务信息系统 (ATIS)和有关的救援机构和设施 ,通过ATIS和ATMS将交通监控中心与职业的救援机构联结成有机整体 ,为道路使用者提供现场紧急处置 ,拖车现场救护等服务 ;而智能交通系统ITS其主要目标是针对日益严重的交通需求和环境保护压力 ,采取信息技术 ,通信技术 ,计算机技术和控制技术对传统的交通运输系统进控制、改造  相似文献   
992.
The authors use the Institutional Collective Action Framework to analyze the barriers, opposition, and opportunities for residential pharmaceutical disposal programs in the United States via a case study on a series of take‐back programs pioneered in the state of Washington by local and state governments, as well as the corresponding backlash from federal agencies. While successful in some ways, these innovative solutions directly challenged the competing federal policy regimes controlled by the Drug Enforcement Agency (DEA), and, to a lesser extent, the Environmental Protection Agency (EPA). Findings from case studies suggest that functional dilemmas created by existing institutions with entrenched regulatory regimes are a key challenge to finding efficient solutions to vertical ICA dilemmas. Conclusions, then, connect to the broader ICA research agenda, and implications for multi‐level governance issues.  相似文献   
993.
The performance of innovation systems depends, to a great extent, on the degree of public–private collaboration they involve. Thus, innovation policies often aim to enhance this collaboration through public–private partnerships. These partnerships are a multidimensional phenomenon whose success depends on factors related to each of their dimensions. This paper proposes the use of an analytical model that reflects the multidimensional nature of public–private partnerships and analyses to what extent they are applied in a specific innovation system in order to identify the territorial and sectorial factors that act as barriers or drivers to use them. This model aims to help policy makers design appropriate public–private partnerships in each context. The case under review is the Spanish innovation system, given that this system has been suffering from a structural lack of collaboration for several decades, despite the implementation of policies aimed to foster this. Thus, if the model works, it should be able to identify key factors that influence greater or more restricted use of the different PPP formulas.  相似文献   
994.
Abstract

This research comparatively examines grassroots international NGOs (GINGOs), a growing subset of international nongovernmental organizations (INGOs) working in private development aid. GINGOs are small-scale, on-going development initiatives through voluntary third sector organizations. How do GINGOs’ founders and volunteers understand their role in private development aid? The article uses an interpretive framework to examine three in-depth comparative case studies of GINGOs based in the US and working in South Sudan, Nepal and Haiti. Its contribution is that it provides rich data to build further theory about the experiences, or multiple realities, in private development aid. It is found that GINGOs’ founders and volunteers attach new meanings to private development aid to distinguish themselves from larger professionalized INGOs and emphasize personal connections.  相似文献   
995.
Although plant clinics are considered an important mechanism in the service delivery to farmers, not much is known about their functioning in the daily reality of plant doctors and farmer-clients. This article reports on an exploratory study describing the functioning of eight plant clinics in Rwanda. Personal and organisational commitment, publicity, and proactive communication with farmers and local leaders are key factors explaining higher attendance of some clinics. Farmer attendance is under-reported by 40–50%. Data management needs improvement to make clinic records reliable tools for decision-makers. This type of assessment can help improve operations and realise the plant clinics’ potential.  相似文献   
996.
羡余现象是2004年金颖若从信息科学引入到旅游研究中的。在此之前和之后都有学者对处于劣势地位的旅游资源进行过理论探讨及实证研究,某些理论观点同对旅游资源羡余的认识有殊途同归的效果。文章结合目前相关研究进展,对旅游资源羡余概念的界定、特性、类型及转变为非羡余旅游资源的途径做了进一步分析,以便更深入的阐释羡余现象,并以期指导地区羡余旅游资源的蜕变。  相似文献   
997.
《中华人民共和国刑法修正案(八)》增设了拒不支付劳动报酬罪,为保护劳动者的合法薪酬权益和打击拒不支付劳动者报酬的行为提供了明确的刑事法律依据。作为新设罪名,公安机关应重点关注其中的新内容。在审查拒不支付劳动报酬案件的立案材料时,应当重点审查是否具有劳动行政部门要求用人单位支付劳动报酬的《劳动保障监察行政处理决定书》或者行政复议机关要求用人单位支付劳动报酬的《行政复议决定书》。对"经政府有关部门责令支付仍不支付"不能仅按字面意思简单理解,而是应当参照劳动保障行政部门或行政复议机关申请人民法院强制执行的条件对其作出认定;应以我国劳动法律法规为基础理解"劳动者"的范围。  相似文献   
998.
The intention of this article is to understand whether and how shared service centers can help reduce costs in the public sector context. We identify the sources of cost reduction for shared service centers and discuss the obstacles to making use of them. In order to illustrate and complement the theoretical discussion and the literature review, empirical insights from two Estonian cases are provided. The case studies indicate that when the context is enabling, shared service centers can help reduce back-office headcount. However, the total costs and benefits of the public-sector shared service centers are not calculated and remain unknown.  相似文献   
999.
This article examines contemporary challenges of formal seed sector participation for resource-poor farmers in Tharaka and engages in a wider discussion of national seed policy and formal seed sector development in Kenya. While many farmers reported utilising modern seed varieties developed by the formal seed sector, the majority of these were introduced through seed aid and maintained through seed saving, supporting seed system integration strategies. Building on these findings, the article discusses ways in which national seed policy in Kenya might be refined to better meet national and regional development goals focused on decreasing the incidence of hunger and poverty.  相似文献   
1000.
This article, written by the former British Ambassador to Iran, starts with an overview from an insider's perspective of the 15 years of diplomacy leading up to the July 2015 Joint Comprehensive Plan of Action (JCPOA) regarding Iran's Nuclear capabilities. It discusses the merits of the plan and its prospects for the future. It examines the development of international economic engagement, and in particular argues that the western powers need to do far more to deliver an economic quid pro quo for Iran's nuclear concessions: if the situation is not appreciably better soon, it will be impossible for the US and its partners to argue credibly that they are not in breach of the JCPOA. The article concludes with a discussion of Iran's economic and political prospects in the light of the nuclear deal.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号