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   1039篇
  免费   47篇
各国政治   87篇
工人农民   74篇
世界政治   86篇
外交国际关系   68篇
法律   498篇
中国共产党   2篇
中国政治   12篇
政治理论   252篇
综合类   7篇
  2023年   15篇
  2022年   11篇
  2021年   14篇
  2020年   34篇
  2019年   46篇
  2018年   59篇
  2017年   60篇
  2016年   52篇
  2015年   38篇
  2014年   39篇
  2013年   152篇
  2012年   52篇
  2011年   42篇
  2010年   42篇
  2009年   35篇
  2008年   30篇
  2007年   38篇
  2006年   42篇
  2005年   43篇
  2004年   25篇
  2003年   34篇
  2002年   25篇
  2001年   17篇
  2000年   14篇
  1999年   5篇
  1998年   5篇
  1997年   3篇
  1996年   5篇
  1995年   4篇
  1994年   9篇
  1993年   10篇
  1992年   11篇
  1991年   6篇
  1990年   10篇
  1989年   5篇
  1988年   4篇
  1987年   7篇
  1986年   5篇
  1985年   6篇
  1984年   6篇
  1983年   6篇
  1982年   3篇
  1981年   2篇
  1979年   3篇
  1978年   2篇
  1977年   2篇
  1976年   3篇
  1971年   2篇
  1968年   1篇
  1966年   1篇
排序方式: 共有1086条查询结果,搜索用时 15 毫秒
891.
Combining a historical institutionalism approach with institutional isomorphism and punctuated equilibrium, this article analyzes quarantine policy change across 120 years of Australian quarantine history. By anchoring its analysis within specific time periods (the years before the Spanish flu, seven decades of inaction, and multiple post-1997 pandemic updates and responses), the authors highlight when and why policies did or did not change and how the constant push-and-pull between state and Commonwealth institutional ownership altered policy possibilities. The heart of the analysis showcases how Australia's successful COVID-19 response is a unique output of prior quarantine policies, institutional evolution, and mid-pandemic alterations of key national pandemic response plans.  相似文献   
892.
Municipal mergers are one of the most common reforms of jurisdiction size. While there are many studies of municipal mergers at the contextual level and some about how mergers affect opinions, studies of how individual citizens regard prospective mergers are still scarce. Thus, we study why citizens have different opinions on prospective mergers that are yet to be decided on. Specifically, the factors of main interest in this study are political efficacy and political trust since these relate to how citizens make sense of the complex and uncertain reforms that municipal mergers are. To study this, we disseminated a population survey (N = 6,686) in the Finnish municipality of Korsholm in 2018. At that time, a merger was planned with the neighboring city of Vaasa. This merger was surrounded by a very heated debate, mainly due to the fact that the merger would have affected the position of language minorities (a very salient issue in bilingual Finland) whereby the Swedish-speaking majority in Korsholm would become a minority in a merged new municipality. Using regression analyses where internal- and external political efficacy and political trust are tested as predictors of opinions on this proposed merger, with control for demographic, socio-economic and social factors, the study demonstrates that external efficacy and political trust have independent significant impact on citizens' opinions on mergers. The findings also show that salient issues connected to mergers are important factors as are social factors.  相似文献   
893.
The product composition of bilateral trade encapsulates complex relationships about comparative advantage, global production networks, and domestic politics. Despite the availability of product-level trade data, most researchers rely on either the total volume of trade or certain sets of aggregated products. In this article, we develop a new dynamic clustering method to effectively summarize this massive amount of product-level information. The proposed method classifies a set of dyads into several clusters based on their similarities in trade profile—the product composition of imports and exports—and captures the evolution of the resulting clusters over time. We apply this method to two billion observations of product-level annual trade flows. We show how typical dyadic trade relationships evolve from sparse trade to interindustry trade and then to intra-industry trade. Finally, we illustrate the critical roles of our trade profile measure in international relations research on trade competition.  相似文献   
894.
Gentrification and Displacement: Modeling a Complex Urban Process   总被引:1,自引:0,他引:1  
ABSTRACT

To shed some light on longstanding questions around gentrification, in this research we model environmental gentrification and gentrification-related displacement of residents. We do this through the development of an agent-based model of a simple urban region, considering different urban contexts and policy approaches to polluted facilities and the relationship of these policies with subsequent gentrification and displacement. We find that gentrification-related displacement is most likely, and most impactful, in urban regions characterized by high levels of density and low levels of residential segregation preferences. Displacement is far less prevalent in low-density regions, particularly those with high segregation preferences. We discuss the potential for different policy implications in these different urban contexts.  相似文献   
895.
Australian regional development has suffered from ‘fragmentation’ with policy responsibility shared between different tiers of government. The Rudd government sought to improve regional policy with the establishment of the Regional Development Australia (RDA) network. However, uncertainty surrounds the role of RDA. This paper seeks to illuminate this problem by drawing on the literature on types of multi-tiered governance, especially the work of Hooghe and Marks and Skelcher on Type I and Type II bodies. It is argued in a normative framework that the RDA network has the characteristics of Type II entities and that this gives it a comparative advantage in specific respects.  相似文献   
896.
Korea Aid was a development project delivering Korean medical services, food and pop music via trucks to rural communities in Africa. The project was poorly conceived, vulnerable to corruption and ultimately ineffective. While Korea Aid marked a backward step for Korea’s development cooperation, revealing many of the challenges associated with emerging donors, it also reflected Korea’s aspiration to become a cultural and developmental alternative to hegemonic nations. This paper examines the historical circumstances that led to the formation of Korea Aid, and further argues that Korea Aid embodied a synthesis of ‘cultural soft power’ and ‘developmental soft power’ intended to create the perception of Korea as culturally and developmentally attractive and benign. Korea’s current pursuit of developmental soft power intentionally transforms the country’s development experience into a ‘politically odourless’ model, masking its authoritarian undercurrent and in turn camouflaging growing aspirations to expand its global influence.  相似文献   
897.
With an increasing number of young people turning away from traditional news sources, an important question for democracy is whether alternative sources can help learning about politics and current affairs. In this study, we examine to what extent informal political talk with friends, family, and peers narrows or widens knowledge gaps amongst young people by compensating those with low news media use (“helping the poor”), amplifying news media effects amongst those with high news media use (“the rich get richer”), or distracting those with high news media use (“taxing the rich”). To test these different potentials, we take advantage of a four-wave panel study fielded ahead of the Danish National Election in 2015 among a sample of Danish first-time voters (ages 17 to 21). Our results show that informal political talk functions mostly as a compensator by informing those with low news media use about current political affairs and thereby helps decrease knowledge gaps caused by different levels of news media use.  相似文献   
898.
899.
Immunohistochemistry (IHC) technique is an alternative toxicological analysis to detect drugs in insects of forensic importance, but it requires thorough histological procedures. In this study, we tested different fixatives—phosphate‐buffered paraformaldehyde 4% (PP), Carnoy's fluid (CF), Kahle's solution (KS), ethanol in different concentrations, and ethanol associated to PP and CF, time of fixation and histological processes for dipteran larvae's tissue, aiming to develop a sample preparation protocol for IHC application. A suitable fixation was achieved using PP for 12 and 24 h, CF for 3 h, 70% ethanol for 19 days, and 70% ethanol/CF for 2 h/3 h. Postfixation using negative pressure, two immersions in xylene for 30 min each, and one in xylene plus paraffin for 45 min increased tissue preservation. An immunohistochemical test for cocaine detection was performed using monoclonal benzoylecgonine antibody from mouse, peroxidase‐conjugated anti‐mouse IgG and visualized by 3,3′‐diaminobenzidine method showed these histological procedures didn't compromise antigenicity.  相似文献   
900.
It has long been suspected that the illicit distribution of cocaine in the United States has led to a large‐scale contamination of the currency supply. To investigate the extent of contamination, 418 currency samples (4174 bills) were collected from 90 locations around the United States from 1993 to 2009. The extent of their cocaine contamination was quantitated via gas chromatography/mass spectrometry or liquid chromatography/mass spectrometry. The level of cocaine contamination was determined to average 2.34 ng/bill across all denominations ($1, $5, $10, $20, $50, and $100). Levels of cocaine contamination on currency submitted to the Federal Bureau of Investigation Laboratory in criminal cases over the 1993–2001 timeframe had significantly higher contamination than currency in general circulation. A mathematical model was developed based on the background survey that indicates the likelihood of drawing a bill in specific concentration ranges. For example, there is a 0.8349 likelihood that random bill will have contamination less than 20 ng.  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