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   364篇
  免费   14篇
各国政治   15篇
工人农民   10篇
世界政治   34篇
外交国际关系   23篇
法律   168篇
中国政治   1篇
政治理论   120篇
综合类   7篇
  2023年   2篇
  2022年   4篇
  2021年   4篇
  2020年   5篇
  2019年   7篇
  2018年   14篇
  2017年   11篇
  2016年   10篇
  2015年   7篇
  2014年   10篇
  2013年   65篇
  2012年   6篇
  2011年   4篇
  2010年   11篇
  2009年   7篇
  2008年   8篇
  2007年   11篇
  2006年   15篇
  2005年   9篇
  2004年   13篇
  2003年   9篇
  2002年   16篇
  2001年   6篇
  2000年   3篇
  1999年   5篇
  1998年   6篇
  1997年   9篇
  1996年   10篇
  1995年   2篇
  1994年   6篇
  1993年   4篇
  1992年   4篇
  1991年   7篇
  1990年   4篇
  1989年   6篇
  1988年   2篇
  1987年   2篇
  1986年   2篇
  1985年   7篇
  1984年   5篇
  1983年   6篇
  1982年   7篇
  1981年   6篇
  1978年   6篇
  1976年   2篇
  1975年   4篇
  1974年   2篇
  1973年   3篇
  1970年   1篇
  1968年   1篇
排序方式: 共有378条查询结果,搜索用时 15 毫秒
361.
Reviewing the literature on the effect of television viewing on behavior, the authors suggest that if indeed the content of television programs can encourage antisocial behavior in some groups of viewers, the image of crime and characteristics of criminal actors presented on television may play an important role in the adoption of criminal behavior by lower-class adolescents. Data are presented that indicate the variance between the view of crime presented by the television media and that found in official statistics. The implications of this discrepancy for models of delinquency are discussed.  相似文献   
362.
363.
The growth of criminal justice education programs at institutions of higher learning has been largely a phenomenon of the 1960s and 1970s. This rapid growth has resulted in a variety of program types in terms of both subject area and content orientation. Programs appear to be moving toward a total-system approach with both a social science and professional emphasis. The type of program developed by educational institutions has implications for instructor selection, practitioner relationships, and organizational location within the institution of higher learning.  相似文献   
364.
365.
366.
367.
368.
369.
A number of N‐substituted piperazines have been described as drugs of abuse in recent years. This new drug category includes several series of aromatic ring substituted phenylpiperazines. The wide variety of available precursors makes regioisomerism a significant issue in these totally synthetic compounds. In this study, a complete series of regioisomeric dimethoxyphenylpiperazines were synthesized and evaluated using GC‐MS and FT‐IR. The EI mass spectra show fragments characteristic of both the dimethoxyphenyl and the piperazine portions of the molecules including the dimethoxyphenylaziridinium cation (m/z 180) and dimethoxyphenyl cation (m/z 137). The ion at m/z 56 for the C3H6N+ fragment is characteristic of the piperazine ring and was observed in all the spectra. The perfluoroacyl derivatives were resolved by GC, and their mass spectra showed some differences in relative abundance of ions. FTIR provides direct confirmatory data for differentiation between the regioisomeric dimethoxyphenylpiperazines, and GC separation was accomplished on an Rtx‐200 phase.  相似文献   
370.
Development, as an idea and an industry, is premised on the assumption that all states have the ability to raise the material wellbeing of citizens. For many this appears to be working but the ideal is problematic for a sub-set of the world's smallest countries: the Pacific Island states. These states have sought to develop conventional export trade-based economies but are disadvantaged in this, and in service sector development, by a combination of well-known factors, including resource bases, size and location. By default, migration has become a least-worst development option for many island peoples and governments, involving engagement with the periphery and contributing to income generation and poverty alleviation. This deterritorialisation presents an alternative to mainstream development theory and practice in its current state-centric form, and emphasises the emerging significance of non-state approaches to development.  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