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   1301篇
  免费   39篇
各国政治   44篇
工人农民   255篇
世界政治   100篇
外交国际关系   78篇
法律   587篇
中国政治   20篇
政治理论   246篇
综合类   10篇
  2023年   4篇
  2022年   4篇
  2021年   6篇
  2020年   24篇
  2019年   29篇
  2018年   46篇
  2017年   47篇
  2016年   36篇
  2015年   41篇
  2014年   36篇
  2013年   171篇
  2012年   31篇
  2011年   38篇
  2010年   33篇
  2009年   42篇
  2008年   45篇
  2007年   49篇
  2006年   41篇
  2005年   48篇
  2004年   62篇
  2003年   43篇
  2002年   45篇
  2001年   24篇
  2000年   27篇
  1999年   17篇
  1998年   13篇
  1997年   28篇
  1996年   33篇
  1995年   16篇
  1994年   25篇
  1993年   20篇
  1992年   28篇
  1991年   24篇
  1990年   18篇
  1989年   14篇
  1988年   13篇
  1987年   8篇
  1986年   15篇
  1985年   12篇
  1984年   9篇
  1983年   11篇
  1982年   11篇
  1981年   11篇
  1980年   6篇
  1979年   5篇
  1978年   7篇
  1977年   7篇
  1976年   5篇
  1975年   3篇
  1974年   4篇
排序方式: 共有1340条查询结果,搜索用时 15 毫秒
851.
Based on a two-year, multi-method study of ‘development’ in one small community in rural Manitoba, Canada, the article examines how the community and people's reasons for living there have both changed and remained consistent since the beginning of the area's settlement by Ukrainian immigrants in the late nineteenth century. The community has much in common with marginalised areas of the global South, in terms of its treatment at the hands of those in the centre and those who promote ‘development’. The author argues that the concept of ‘place-making’ allows for both a greater understanding of the dynamics in the community and greater possibilities for building sustainable, liveable places, than does the concept or practice of ‘development’.  相似文献   
852.
Abstract

During the 1990s, the federal government dramatically changed its policy on housing the poor. Under the HOPE VI (Housing Opportunities for People Everywhere) Program, the U.S. Department of Housing and Urban Development intended to address the concentration of troubled low‐income households in public housing by moving away from its reliance on project‐based assistance and promoting instead the construction of mixed‐income housing and the use of housing subsidies.

This article presents important evidence from two systematic, multicity studies on how the original residents of HOPE VI developments have been affected by this radical new approach to public housing. While many residents have clearly benefited, the findings raise critical questions about whether the transformation of public housing will achieve its potential as a powerful force for improving the lives of low‐income families.  相似文献   
853.
854.
Scholars and practitioners agree that homeland security policy implementation is contingent on a strong system of intergovernmental relations. The responsibilities associated with the homeland security mission, often mandated, cut across federal, state, and local boundaries. Local-level stakeholders are especially important players in the implementation process. This article presents a local perspective on the way intergovernmental relations have changed—and the reasons for those changes—since 9/11. Results of a survey of county and city officials in Florida provide evidence that intergovernmental cooperation has improved as a result of federal and state mandates. These results are refined by an analysis of the effects of specific local characteristics and the quality and quantity of vertical and horizontal networks on intergovernmental cooperation and local preparedness. Homeland security appears to be a policy area in which mandated cooperation and coordination—in a time and place of urgency—have actually strengthened the intergovernmental system.  相似文献   
855.
Fired cartridge cases are a common type of evidence found at crime scenes. However, due to the high chamber temperatures and touch nature of this evidence, DNA testing is not commonly sought because it is believed DNA is only present in low levels, whether it is due to initial low levels of DNA and/or DNA degradation from the heat or inhibition of the PCR reaction. Moreover, very few laboratories report STR typing success with fired cases. This study focused on obtaining STR profiles from fired cartridge cases using the AmpFℓSTR® MiniFiler™ kit, which is designed to amplify DNA from low level, inhibited, and degraded samples. Comparisons to other STR amplification kits were also conducted. In attempt to simulate casework, random individuals loaded cartridges into a firearm. DNA was recovered from the fired cartridge cases using the double swab technique and extracted using an automated large volume DNA IQ™ method. Initially, testing focused on known shedders handling cartridges for 30 s prior to firing. A significantly greater number of alleles was obtained following amplification with the MiniFiler™ kit versus the PowerPlex® 16 BIO kit. No alleles were observed using the Identifiler® kit. In an attempt to better simulate casework, a random selection of laboratory personnel handled shotshells for as long as needed to load and fire the weapon. In this mock sample study, the MiniFiler™ kit successfully amplified an average of 22% of expected alleles from DNA recovered from shotshell cases versus the PowerPlex® 16 BIO kit where an average of 7% of alleles were observed. However, the total number of alleles obtained from the two kits was not significantly different. The quality of the DNA obtained from fired cases was studied with evidence of inhibition in at least 11% of shotshell case samples. After swabbing the head and the hull of three shotshell cases separately, a significantly greater number of alleles was obtained from the hull as opposed to the head of the fired shotshell case. In addition, after firing, various internal firearm surfaces were swabbed, including the chamber of barrel, ejection port, and breechface, in an attempt to obtain amplifiable DNA. DNA was obtained from the chamber of the barrel and was amplifiable using the MiniFiler™ kit, although mixtures were obtained with extensive drop-in and drop-out making this analysis unlikely to aid an investigation.  相似文献   
856.
Sociologists of law have long been concerned with the effectiveness of rights; the emergence of diversity training in the 1990s spurred renewed attention to questions of how laws are enacted in daily life. Much scholarship has constructed the managerialization of civil rights law and popularization of diversity concepts as diluting efforts to redress structural discrimination. In studying diversity and antiharassment trainings in practice, I argue that these are sites where civil rights find expression of their obligations, and I find that much of the "dilution" of content stems from diversity trainers' efforts to negotiate with the resistance of trainees to their new obligations under civil rights law. The trainees evince a variable legal consciousness in relationship to this legality of rights-promotion, to which they are being exposed in these trainings; the findings suggest further research is needed into the legal consciousness of the privileged.  相似文献   
857.
When you have a rational discussion of what to do with the Israeli settlements, how do you factor in the irrational, the deeply held beliefs of people with varying views? As we witnessed at the conference, when people speak about the Israeli settlements, they do so with emotion, using such phrases as “Messianic spirit,”“longing for homeland,”“compassionate revenge,” and “the destruction of dreams.” The land in question is precious to two different groups, who each imbue the land with their own narrative and fervor. In fact, at the very heart of what makes the settlements issue so complex and seemingly intractable is its psychological dimensions — the mental and emotional factors that permeate the discussion at every level.  相似文献   
858.
859.
860.
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