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   1661篇
  免费   87篇
  2024年   6篇
  2023年   47篇
  2022年   10篇
  2021年   19篇
  2020年   77篇
  2019年   129篇
  2018年   116篇
  2017年   131篇
  2016年   101篇
  2015年   70篇
  2014年   68篇
  2013年   346篇
  2012年   59篇
  2011年   80篇
  2010年   59篇
  2009年   60篇
  2008年   49篇
  2007年   58篇
  2006年   56篇
  2005年   57篇
  2004年   25篇
  2003年   30篇
  2002年   29篇
  2001年   24篇
  2000年   21篇
  1999年   4篇
  1998年   4篇
  1997年   5篇
  1996年   3篇
  1993年   3篇
  1992年   1篇
  1989年   1篇
排序方式: 共有1748条查询结果,搜索用时 62 毫秒
81.
ABSTRACT. In the immediate aftermath of World War II the Polish state placed a high value on national homogeneity. The Polish Committee of National Liberation signed population exchange agreements with its socialist neighbours in September 1944 and expelled the German population who remained within the new Polish borders. Far less frequently discussed are the Polish state's efforts to persuade ‘Poles’ in Western Europe to move to Poland. This paper analyses how Polish policy towards ‘Westphalian Poles’ and the British reaction to Polish claims offer insight into both Polish and British nationality and citizenship policy in the immediate post‐war period. I argue that the quality of potential labour played an important role in both British and Polish thinking. The paper also contends that the ‘Westphalian incident’ gives useful insights into the emergence of the Cold War.  相似文献   
82.
国民经济恢复时期,面对失业和人才需求关系的矛盾,城市失业知识分子受到党和政府的高度关注。北京市的失业知识分子虽人数不多,但呈现出一定程度的复杂性。为此,北京市根据党和国家的政策,从首都社会秩序的稳定和首都建设的人才需求出发,在较短的时间内,有计划有步骤地对失业知识分子进行了必要的社会救济,达到了预期的目标。同时,实际操作中也遇到了一些不容回避的问题。  相似文献   
83.
孟广林 《史学月刊》2004,21(6):71-82
在文艺复兴时期的西欧,法国的宫廷大臣、著名的政治思想家克劳德·得·塞瑟尔根据现实社会的变动,提出了系统的"新君主制"学说.在肯定君主制的价值时,他鼓吹"王权神授",但却着重于从人性的角度来强调君主制的优越性.在对"明君政治"的憧憬中,他界定了一些君主应当遵循的政治行为规范,特别强调君主实施仁政,建立各等级之间的"和谐"秩序,并提出了等级变动的合理性.同时,塞瑟尔主张君主让各等级代表参政议政,建立"君主咨政会议制".他还提出"有限君权"的主张,力图以教会、"正义"与国家法令来遏止君主的暴政.此外,他还要求君主灵活地进行外交,积极进行殖民扩张.塞氏的政治学说充满着"过渡时期"社会所赋予的复杂性与矛盾性,但受时代变迁的感召与人文主义的熏陶,他突破传统的藩篱,提出了适应民族国家发展与新兴资产阶级成长之需要的"新君主制"学说.他的政治理想,反映了西方政治思想从中世纪向近代转型的历史趋势.  相似文献   
84.
九一八事变后 ,面对日本不断加紧的侵华步伐 ,汪精卫开始形成“一面抵抗 ,一面交涉”的对日外交思想。一·二八事变后 ,汪精卫全面系统地阐述了这一思想 ,并将之作为汪、蒋合作的南京政府对日外交的指导方针。这一对日外交方针对当时中国政局的发展和中日关系的走向产生了深远的影响 ,同时也为后来汪精卫的叛国投日埋下了祸根。  相似文献   
85.
Despite a decline in crime rates, the 1990s witnessed extensive media coverage of several high‐profile stranger abductions and murders of children. State legislators' swift response to the public's growing fear of sex offenders with the adoption of sex offender registration and notification (SORN) laws raises questions about the role of politics. Punctuated equilibrium theory and the diffusion of innovation jointly provide a context to conduct an event history analysis to assess the extent to which politics enhanced legislative responsiveness to public opinion in SORN policymaking. Contrary to the commonly held belief that attributes legislative interest in SORN to salient crimes against children, the results suggest that factors such as the percentage of a conservative population, district‐level competition, and state innovativeness accelerated the diffusion of innovation of the laws.  相似文献   
86.
Comparative policy studies face a number of methodological challenges where conceptualization of the object of comparison—policy output—is the most fundamental. On the basis of three common approaches of the study of policy output, we reconsider this widely applied concept and propose a refined measure as a function of both density (number of policy instruments) and intensity (content of policy instruments). We theoretically derive six policy‐intensity measures (objectives, scope, integration, budget, implementation, and monitoring), which are used for weighting national policy instruments on an Index of Climate Policy Activity. The article presents an empirical application of this measurement approach. Focusing on national climate policy instruments in the energy production sector in Austria, Germany, and the United Kingdom, we investigate changes in the countries' policy portfolios from 1998 to 2010. The article demonstrates that our Index of Climate Policy Activity provides a reliable and valid measurement for national policy output that can be applied for comparative analyses of policy output.  相似文献   
87.
Despite collaborative governance's popularity, whether collaboration improves policy performance remains uncertain. This study assesses the link between collaborative decision making and licensed environmental management protocols in the Federal Energy Regulatory Commission's (FERC's) process for licensing hydropower facilities in the United States. Using results from a previous study of FERC relicensing (Ulibarri, forthcoming), one high‐, one medium‐, and one low‐collaboration case were selected. Using documents including meeting minutes, public comments, and issued licenses, I assessed collaboration and license outputs, then conducted process tracing to examine whether and how differences in collaboration produced differences in license quality. High collaboration resulted in jointly developed and highly implementable operating regimes designed to improve numerous resources, while low collaboration resulted in operating requirements that ignored environmental concerns raised by stakeholders and lacked implementation provisions. These results support the hypothesis that collaboration can improve environmental outcomes, revealing the pragmatic value of collaboration. [Correction added on 13 January 2015, after first online publication: the occurrences of ‘0’ in the abstract were erroneous and have now been corrected.]  相似文献   
88.
Andy Lockhart  Simon Marvin 《对极》2020,52(3):637-659
Enclosed, controlled environments, stretching from sites of luxury consumption to urban food production, are proliferating in cities around the world, utilising increasingly advanced techniques for (re)creating and optimising microclimatic conditions for different purposes. However, the role of automated control systems—to filter, reprocess and reassemble atmospheric and metabolic flows with growing precision—remains under-researched. In this article, we explore the phenomenon of automated environmental control at three sites in the UK city of Sheffield: a botanical glasshouse, a luxury hotel and a university plant growth research lab. In doing so, we first show how controlled environments are constituted through specific relations between the inside and outside, which are embedded in inherently political urban contexts and processes. Second, we identify the technical and ecological tensions and limits of indoor environmental control at each site which limit the scope of automation, and the considerable amount of hidden labour and energy required to maintain and restabilise desired conditions. Drawing on these more established examples of ecological interiorisation in a key moment of transition, we raise urgent questions for critical urban and environmental geographers about the possible futures of controlled environments, their practical or selective scalability, and who and what will be left “outside”, when they are emerging as a strategic form of urban adaptation and immunisation in the face of converging ecological pressures.  相似文献   
89.
90.
What is the relationship between changes in interest group resources and the proposal and adoption of state policy? Using a dataset of proposed and enacted teacher policies across five legislative cycles in all 50 states and measures of interest group relative and absolute resource strength, I estimate a series of within-state fixed effects models that gain identification from changes in interest group resources and teacher policy over time. I find that legislatures propose more unfavorable and fewer favorable policies toward teachers' unions in states where teachers' union opposition interest groups are expending more election (but not lobbying) resources over time. Further, I find that more unfavorable and fewer favorable policies are adopted in states where teachers' union opposition groups are growing in election resource strength. Expanding on prior empirical work, this study suggests that interest group resources matter for policy change and highlights the importance of capturing interest group resource dynamics over time.  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