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   310篇
  免费   24篇
各国政治   27篇
工人农民   76篇
世界政治   27篇
外交国际关系   9篇
法律   131篇
中国政治   5篇
政治理论   54篇
综合类   5篇
  2024年   1篇
  2023年   4篇
  2021年   5篇
  2020年   8篇
  2019年   15篇
  2018年   21篇
  2017年   26篇
  2016年   21篇
  2015年   22篇
  2014年   11篇
  2013年   51篇
  2012年   13篇
  2011年   13篇
  2010年   10篇
  2009年   7篇
  2008年   6篇
  2007年   15篇
  2006年   12篇
  2005年   6篇
  2004年   8篇
  2003年   7篇
  2002年   2篇
  2001年   5篇
  2000年   4篇
  1999年   5篇
  1998年   1篇
  1997年   5篇
  1996年   3篇
  1995年   5篇
  1994年   1篇
  1993年   5篇
  1991年   2篇
  1990年   3篇
  1989年   1篇
  1988年   1篇
  1987年   2篇
  1986年   1篇
  1983年   3篇
  1982年   1篇
  1978年   1篇
  1974年   1篇
排序方式: 共有334条查询结果,搜索用时 0 毫秒
201.
Using epidemiological techniques for testing disease contagion, it has recently been found that in the wake of a residential burglary, the risk to nearby homes is temporarily elevated. This paper demonstrates the ubiquity of this phenomenon by analyzing space–time patterns of burglary in 10 areas, located in five different countries. While the precise patterns vary, for all areas, houses within 200 m of a burgled home were at an elevated risk of burglary for a period of at least two weeks. For three of the five countries, differences in these patterns may partly be explained by simple differences in target density. The findings inform theories of crime concentration and offender targeting strategies, and have implications for crime forecasting and crime reduction more generally.
Shane D. JohnsonEmail:
  相似文献   
202.
This report focuses on the development of a method for chemically induced enhancement of cell elution and recovery from cotton swabs. The method exploits the exclusive use of detergents for intact cell removal, and can be utilized in conjunction with, or to circumvent, conventional differential extraction (DE). Samples treated with Sarkosyl (54.4 +/- 1.8%) and sodium dodecyl sulfate (SDS) (78.5 +/- 0.7%) yielded higher sperm cell recoveries than a conventional DE buffer (39.4 +/- 2.1%). The results indicated that the choice of detergent affected sperm cell yield, with anionic detergents having the greatest effect. Storage time of samples affected the concentration of detergent required for optimal sperm cell recovery, longer times requiring increased detergent concentrations. In addition, the extent of sperm cell lysis by proteinase K digestion was evaluated. The results indicate that the exclusive use of SDS enhances the release of sperm and epithelial cells from a cotton swab as compared with DE buffer, providing for a more effective DNA analysis.  相似文献   
203.
Older prisoners are the fastest growing subgroup in the English and Welsh prison estate. Older prisoners have high levels of health and social care needs. This mixed-method study involved the distribution of a questionnaire examining the availability of health and social care services for older prisoners to all prisons housing adult males in England and Wales, followed by qualitative telephone interviews with representatives from eight prisons. Over half of establishments had some contact with external social care services, but reported significant difficulties in arranging the care for individuals. A professional lead for older prisoners had been identified in 81% of establishments; however, the value of this role to positively affect practice appeared questionable. Statutory social care was often non-existent in prison due to the lack of understanding of what it constituted and who was responsible for its provision.  相似文献   
204.
With this brief piece, we raise some questions and suggest some alternative directions for knowing about crisis. In particular, we point to the role of core beliefs in shaping society, including the way in which those held by academics shape research and how knowledge about crisis is produced, as well as the influence core beliefs have on the everyday lives of the people with whom we work. We draw on the work of Miki Kashtan (2014), who identifies three core beliefs that have become persistent themes in our work with communities: separateness, scarcity, and powerlessness. We offer some examples of and reflections on work we have done in the Govan neighborhood of Glasgow, Scotland by way of gesturing toward how we understand core beliefs to work and how they might be engaged with. Our intention is not to denigrate the value of beliefs, but rather to point out the value in recognizing the beliefs that inform our ways of knowing and actions.  相似文献   
205.
206.
207.
This article seeks to understand, in historical and international perspective, recent governmental initiatives that aim to reinstate adoption as a viable policy option for the care and placement of children in Australia, with reference to two recent reports of the House of Representatives Standing Committee on Human and Family Services, Overseas Adoption in Australia: Report of the Inquiry into Adoption of Children from Overseas (2005), and The Winnable War on Drugs: The Impact of Illicit Drug Use on Families (2007) which raises adoption as a policy option for children of drug‐addicted parents. These reports appear to signal a discursive shift away from the anti‐adoption attitudes that have characterised the post‐1970s period in response to the Stolen Generations and other past adoption practices. It is argued that this change can be understood as having been pushed to the fore by the conservative family policy of the Howard era and further fostered by international trends in adoption policy.  相似文献   
208.
This article challenges the widespread view that democraticaccountability is unattainable in global politics because ofthe impracticality of establishing global elections. Instead,it argues that global democratic accountability can potentiallybe achieved by instituting non-electoral mechanisms that performequivalent accountability functions through more workable institutionalmeans. This argument is defended at a theoretical level, andfurther illustrated by analysing an empirical case study ofthe institutions through which labour standards in the globalgarment industry are determined. The article first explainswhy electoral mechanisms are no longer a viable means for achievingdemocratic accountability in political contexts such as theglobal garment industry, that are characterized by the decentralizeddispersion of public decision-making power among a range oforganizationally disparate state and non-state actors. It thenidentifies the key democratic function of electoral accountabilityas that of ensuring a reasonable degree of public control overpublic decision-making, and argues that this normative functioncan, in principle, be legitimately performed through non-electoralas well as electoral mechanisms. Finally, it elaborates thekey institutional features of a legitimate framework of non-electoralaccountability – public transparency and public disempowerment– and illustrates how these functions could potentiallybe achieved in practice, with reference to the example of theglobal garment industry.  相似文献   
209.
210.
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