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   547篇
  免费   11篇
各国政治   25篇
工人农民   81篇
世界政治   24篇
外交国际关系   28篇
法律   293篇
中国政治   4篇
政治理论   98篇
综合类   5篇
  2023年   1篇
  2022年   2篇
  2021年   6篇
  2020年   8篇
  2019年   7篇
  2018年   14篇
  2017年   9篇
  2016年   15篇
  2015年   18篇
  2014年   13篇
  2013年   76篇
  2012年   25篇
  2011年   15篇
  2010年   8篇
  2009年   16篇
  2008年   23篇
  2007年   17篇
  2006年   25篇
  2005年   18篇
  2004年   18篇
  2003年   15篇
  2002年   14篇
  2001年   13篇
  2000年   14篇
  1999年   5篇
  1998年   8篇
  1997年   11篇
  1996年   6篇
  1995年   7篇
  1994年   9篇
  1993年   7篇
  1992年   10篇
  1991年   9篇
  1990年   12篇
  1989年   10篇
  1988年   5篇
  1987年   10篇
  1986年   4篇
  1985年   9篇
  1984年   4篇
  1983年   11篇
  1982年   4篇
  1981年   4篇
  1980年   3篇
  1979年   3篇
  1978年   5篇
  1977年   4篇
  1976年   4篇
  1975年   2篇
  1968年   1篇
排序方式: 共有558条查询结果,搜索用时 15 毫秒
361.
362.
363.
364.

In the physical world, spaces are tangibly defined to secure privacy. The cyberspace equivalent of sealed envelopes and locked doors is encryption. Encryption uses hardware and/or software to ensure that electronic communication is not intercepted by unwelcome and unintended parties. The technology allows communicators transmitting across telephone lines to encode conversations or data.

Sophisticated encryption technology protects legitimate privacy, but it may also cloak illegal activities by obstructing electronic surveillance by law enforcement agencies. The Escrowed Encryption Standard is a federal plan to protect telephone and computer communication from illegal interception and allow government access to these communications for surveillance. This article examines the plan's possibly adverse impacts on constitutional rights, with specific attention to the First, Fourth and Fifth amendments.  相似文献   
365.
366.
The past two decades have produceda profound increase in imprisonment in theUnited States, resulting in a prison populationof two million and expenditures of over $35billion annually on corrections, while otherimportant government services are underfunded. Imprisonment is highest for minority maleslargely because of the War on Drugs, which hasalso dramatically increased the incarcerationof women and created nearly 1.5 millionchildren having a parent incarcerated. Inresponse to this trend, the American Society ofCriminology (ASC) directed the ASC NationalPolicy Committee (NPC) to draft a policy paperon the incarceration issue. This articleexplains the main ideas, themes, andrecommendations of the full policy paper. Itanalyzes the sources and effects of theincreased use of imprisonment, drawingattention to the negative effects of excessiveincarceration. The paper and itsrecommendations reflect a concern that the ASCneeds to set a research agenda that isindependent of the federal government andconventional wisdom. The NPC hopes this paperwill stimulate a healthy and much overduedebate on the role of the ASC in public policyin general, and the merits of widespreadincarceration in particular.  相似文献   
367.
Responding to COVID-19 presents unprecedented challenges for public sector practitioners. Addressing those challenges requires knowledge about the problems that public sector workers face. This Viewpoint essay argues that timely, up-to-date surveys of public sector workers are essential tools for identifying problems, resolving bottlenecks, and enabling public sector workers to operate effectively during and in response to the challenges posed by the pandemic. This essay presents the COVID-19 Survey of Public Servants, which is currently being rolled out in several countries by the Global Survey of Public Servants Consortium to assist governments in strategically compiling evidence to operate effectively during the COVID-19 pandemic.  相似文献   
368.
369.
370.
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