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   5906篇
  免费   187篇
各国政治   465篇
工人农民   151篇
世界政治   630篇
外交国际关系   377篇
法律   2481篇
中国政治   34篇
政治理论   1880篇
综合类   75篇
  2023年   26篇
  2020年   76篇
  2019年   104篇
  2018年   133篇
  2017年   153篇
  2016年   164篇
  2015年   115篇
  2014年   153篇
  2013年   952篇
  2012年   152篇
  2011年   173篇
  2010年   145篇
  2009年   144篇
  2008年   195篇
  2007年   256篇
  2006年   193篇
  2005年   180篇
  2004年   194篇
  2003年   192篇
  2002年   185篇
  2001年   105篇
  2000年   114篇
  1999年   92篇
  1998年   125篇
  1997年   100篇
  1996年   107篇
  1995年   81篇
  1994年   73篇
  1993年   88篇
  1992年   73篇
  1991年   91篇
  1990年   78篇
  1989年   70篇
  1988年   77篇
  1987年   86篇
  1986年   85篇
  1985年   52篇
  1984年   71篇
  1983年   72篇
  1982年   66篇
  1981年   50篇
  1980年   47篇
  1979年   43篇
  1978年   45篇
  1977年   46篇
  1976年   26篇
  1975年   27篇
  1974年   27篇
  1973年   34篇
  1972年   23篇
排序方式: 共有6093条查询结果,搜索用时 0 毫秒
161.
ABSTRACT

Federal funding streams, the International Association of Chiefs of Police, and policing executives and scholars alike have advocated for more researcher-practitioner partnerships in American law enforcement. While a few studies have explored the growth and prevalence of research partnerships in policing, less attention has been placed on the organizational correlates of such collaborative relationships. Using a nationally representative sample of US law enforcement agencies, the current study investigated participation in what we term ‘rigorous partnerships’ – more formal, long-term relationships between researchers and practitioners with increased opportunity for interactive knowledge exchange. Policy implications and directions for future research are discussed, with a specific focus on the barriers and impediments that both parties face for successful collaborative efforts and research translation.  相似文献   
162.
163.
Across the world, governments are grappling with the effects of global warming. Rising temperatures, increases in the number of natural disasters, and elevated sea levels are just some of the risks posed by Earth's weakening ozone. And yet solutions exist. This article discusses the contribution of auto emissions to global warming and proposes ways for manufacturers to adopt a single emissions standard across their fleets all over the world. As discussed, adopting a single standard based on the most stringent one available poses advantages for manufacturers and also promises to reduce the threat of global warming.  相似文献   
164.
Abstract

This article uses a multimethod research design to compare Statecraft to non-Statecraft assignments and courses along three dimensions: student engagement, political attitudes, and academic honesty. The results indicate that Statecraft increased student engagement and academic honesty. In terms of political attitudes, students generally remained on the left side of the political spectrum, but shifted toward the right and became more hawkish by the end of a semester. Changes in attitude are more strongly associated not with playing Statecraft, but taking a political science class by the coauthor, or some other external variable. Statecraft, however, did reduce support for pacifism.  相似文献   
165.
Since its beginnings, zoning has been at its core a tool for achieving exclusionary objectives. Judge Westenhaver, who wrote the lower court decision in Ambler Realty Co. u. Village of Euclid, 297 Fed. 307, 316 (N.D. Ohio 1924) invalidating the village's zoning ordinance, observed that its purpose “is really to regulate the mode of Living of persons who may here-after inhabit [the village]. In the last analysis, the result to be accomplished is to classify the population and segregate them according to their income or station in life.” In reversing his decision, Justice Sutherland classified apartments as “mere parasites … which would deprive children of the privilege of quiet and open spaces for play, enjoyed by those in more favored localities,” In effect, he held that the state's police power could be used to create different levels of health, safety and genera1 welfare for different classes of people. One level was adequate for the poor and another level could be enforced at the behest of the rich who could afford to buy homes in single-family, low-density districts. Even Justice Douglas, a most unlikely bedmate for Justice Sutherland, reflected the same attitude when he wrote recently.  相似文献   
166.
167.
168.
Little research has examined the consequences of a suicide for social or family networks. Because suicide occurs within families, the focus on the aftermath of suicide within families is an important next step to determine exactly how to help survivors. In this article, we review and summarize the research on the impact of suicide on individuals within families and on family and social networks. We begin with a discussion of family changes following suicide. Next, we discuss the effects of suicide on social networks overall and responses of children and the elderly to a suicide in the family. Finally, we identify key issues that remain to be resolved in family survivor research and make recommendations for future studies.  相似文献   
169.
170.
Visas and work permits: Possible global negotiating initiatives   总被引:1,自引:0,他引:1  
We discuss global options for initiatives intended to ameliorate adverse impacts of visa and work permit systems used by national governments around the world. We first describe and document some of their effects, noting the relative lack of other research work on these issues. We then discuss proposals for a new and supplemental global visa structure which have been made as part of the Mode 4 GATS negotiations in the WTO, suggesting that the GATS/WTO may be an imperfect institutional location for negotiating on these matters. We then evaluate other approaches, including what realistically could be possible if a new body specifically created for global negotiation in the area were to be used.
John WhalleyEmail:
  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