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   14036篇
  免费   221篇
各国政治   624篇
工人农民   1229篇
世界政治   779篇
外交国际关系   711篇
法律   7024篇
中国政治   50篇
政治理论   3769篇
综合类   71篇
  2023年   41篇
  2022年   28篇
  2021年   54篇
  2020年   103篇
  2019年   149篇
  2018年   1400篇
  2017年   1361篇
  2016年   1172篇
  2015年   171篇
  2014年   184篇
  2013年   1036篇
  2012年   341篇
  2011年   1063篇
  2010年   1152篇
  2009年   731篇
  2008年   872篇
  2007年   881篇
  2006年   191篇
  2005年   281篇
  2004年   389篇
  2003年   345篇
  2002年   248篇
  2001年   121篇
  2000年   119篇
  1999年   97篇
  1998年   99篇
  1997年   103篇
  1996年   108篇
  1995年   119篇
  1994年   115篇
  1993年   79篇
  1992年   84篇
  1991年   91篇
  1990年   62篇
  1989年   65篇
  1988年   64篇
  1987年   63篇
  1986年   67篇
  1985年   62篇
  1984年   61篇
  1983年   70篇
  1982年   53篇
  1981年   55篇
  1980年   38篇
  1979年   41篇
  1978年   39篇
  1977年   42篇
  1976年   30篇
  1974年   15篇
  1967年   14篇
排序方式: 共有10000条查询结果,搜索用时 8 毫秒
211.
This study examines the relationship between having other-sex versus same-sex best friends and antisocial behavior throughout early adolescence. Participants (N = 955) were recruited in 6th grade and followed longitudinally through 7th, 8th, and 11th grades. Participants were 58% ethnically diverse youth and 48% girls. Results indicate that the frequency of other-sex best friendship remained stable from 6th to 7th grade but significantly increased from 8th to 11th grade. Higher rates of concurrent antisocial behavior were related to having other-sex best friends in 6th grade but not in 7th grade. In 8th grade, there was an interaction between friendship and the sex of friends. Boys with only same-sex best friends and girls with other-sex best friends endorsed higher rates of antisocial behavior. Having other-sex best friends predicted antisocial behavior from 6th to 7th grade and 8th to 11th grade, especially for girls. Implications for the development of early adolescent friendship and antisocial behavior are discussed.
Elizabeth A. Stormshak (Corresponding author)Email:
  相似文献   
212.
This study examined dimensions of mothers’ and fathers’ involvement in adolescents’ romantic relationships when offspring were age 17. Using cluster analysis, parents from 105 White, working and middle class families were classified as positively involved, negatively involved, or autonomy-oriented with respect to their adolescents’ romantic relationships. Patterns of parental involvement were generally not associated with parent–offspring relationship quality at about adolescent age 13, but earlier parent–offspring relationship quality moderated the associations between parental involvement and adolescent romantic experiences at about age 18. Positive parent–offspring relationship quality buffered the effects of negative parental involvement, whereas poorer parent–offspring relationship quality was a more adaptive context for adolescents of autonomy-oriented parents. Discussion focuses on the importance of parenting practices in adolescent romantic relationships and the emotional climate of parent–offspring relationships as a developmental context for those practices.
Marni L. KanEmail:
  相似文献   
213.
Psychological pain has been reported to be major contributing factor for completed suicide, and classical suicidology based its wisdom on this construct. In this paper we report the case of a patient whose family experienced a high number of suicides apparently due to an escalation of psychological pain in the family members after the successive suicides. We also briefly discuss the problem of helping survivors after the suicide of loved one.  相似文献   
214.
Lester D 《危机》2008,29(1):49-51
The present note describes the resource for studying suicide in indigenous peoples provided by the Human Relations Area Files and describes three ways in which these files can illuminate suicidal behavior: testing theories of suicide, exploring the linguistics of suicide, and challenging myths about suicide.  相似文献   
215.
216.
With the progress of European integration, the European environmental policy and law, from zero to bloom, approximately experienced a three- stage development, namely a forming period, an establishing period and a developing period. Environmental policy is no longer a byproduct of the construction of the common market, but has become a significant instrument for realizing the European sustainable development. On the occasion of the amendment of the European treaties, the legal foundation of environmental policy became clear, decision-making mechanism evolved, and implementation measures varied. However, European environmental actions are still constrained by the division of competences between the Union and member states. Moreover, with the trend of deregulation it remains also a tough task for EU on how to effectively realize the objective of sustainable development
Cong FuEmail:
  相似文献   
217.
The notice and comment rulemaking process is a fundamental part of how agencies write regulations. While this process is starting to receive more empirical attention, the question of how the number of comments that an agency receives affects its decision-making process has received little examination. This paper uses Boolean analysis to examine nine rules from two agencies at the Department of Health and Human Services and evaluates the impact of a high volume of comments on agency changes to proposed rules and the time an agency takes to finalize a proposed rule. These nine cases suggest that agencies are most likely to change their proposals when they receive a high volume of comments on highly complex rules that are not very politically salient. Highly complex rules are also likely to take a long time to finalize when there are many public comments however it is often other factors that cause a long delay between proposed and final rules.
Stuart ShapiroEmail:
  相似文献   
218.
The increasing complexity of policy problems, coupled with the political desire to base new policies on the foundation of firm evidence, has accelerated the development of policy assessment tools. These range from complex computer models and cost benefit analysis through simple checklists and decision trees. In the last decade, many governments have established formal policy assessment systems to harness these tools in order to facilitate more evidence-based policy making. These tools are potentially widely available, but to what extent are they used by policy makers and what becomes of the evidence that they generate? This paper addresses these questions by studying the empirical patterns of tool use across 37 cases in three European countries and the European Commission. It uses a simple classification of tools into advanced, formal and simple types. It finds that even when tools are embedded in policy assessment systems, their use is differentiated and on the whole very limited, in particular when it comes to more advanced tools. It then explores these patterns from contrasting theoretical perspectives to shed light on why, when and how different policy assessment tools are used in the policy process.  相似文献   
219.
220.
Research on protest and social movements has undergone a process of consolidation. However, it has lost visibility in Germany where it was in full bloom in the late 1980s and early 1990s. A review of recent scholarship shows that the analysis of protest and the concept of “social movement” is vital to understand both politics emerging “from below” and the dynamics of political processes. While the focus on societal antagonisms which was central in the interpretation of new social movements has been abandoned, historical and cultural approaches have more and more received attention.  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