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   1285篇
  免费   53篇
各国政治   44篇
工人农民   256篇
世界政治   98篇
外交国际关系   78篇
法律   584篇
中国政治   20篇
政治理论   248篇
综合类   10篇
  2023年   5篇
  2022年   4篇
  2021年   6篇
  2020年   24篇
  2019年   29篇
  2018年   47篇
  2017年   46篇
  2016年   36篇
  2015年   42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   42篇
  2005年   48篇
  2004年   62篇
  2003年   42篇
  2002年   45篇
  2001年   23篇
  2000年   25篇
  1999年   17篇
  1998年   13篇
  1997年   28篇
  1996年   32篇
  1995年   16篇
  1994年   25篇
  1993年   20篇
  1992年   28篇
  1991年   23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   10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1338条查询结果,搜索用时 15 毫秒
41.
42.
43.
Background: The recent UK Government strategy on high-risk offenders with personality disorders (PD) proposes improved identification of this group, assessment of their treatment needs through case formulation (CF) and the subsequent provision of treatment pathways. Little is known about service user and carer views on this strategy. Aims/Hypotheses: This study sought to identify the views of personality-disordered (PD) offenders and carers on the proposed role of Probation staff in CF. Methods: Three focus groups were carried out, two with service users and one with carers, with a total of 10 participants overall. Results: Five themes emerged: ‘power’, ‘conflicting roles’, ‘trust’, ‘building a relationship through consistency of care’ and ‘hope and possibility’. Conclusions/Practical implications: Offenders and carers were sceptical regarding the proposed role of Offender Manager (OMs) in CF and this could pose a potential barrier to the successful implementation of the strategy.  相似文献   
44.
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   
45.
46.
47.
48.
Journal of Youth and Adolescence - Adolescents are spending considerable time on social media, yet it is unclear whether motivations for social media use drive different forms of social media...  相似文献   
49.
Journal of Youth and Adolescence - Parent–adolescent conflict can be intense, yet parents and adolescents do not always agree on the intensity of conflict. Conflict intensity tends to change...  相似文献   
50.
Novel psychoactive substances (NPS) are synthetic drugs that pose serious public health and safety concerns. A multitude of NPS have been identified in the United States, often implicated in forensic investigations. The most common and effective manner for identifying NPS is by use of mass spectrometry and the true utility lies within nontargeted acquisition techniques. During this study, a liquid chromatography quadrupole time-of-flight mass spectrometry (LC-QTOF-MS) assay was developed, validated, and implemented for forensic toxicology testing. A SCIEX TripleTOF™ 5600 + with SWATH® acquisition was used. Resulting data were compared against an extensive library database containing more than 800 compounds. The LC-QTOF-MS assay was applied to the reanalysis of biological sample extracts to discover emergent NPS. More than 3,000 sample extracts were analyzed, and more than 20 emerging NPS were detected for the first time. Among these were isopropyl-U-47700, 3,4-methylenedioxy-U-47700, fluorofuranylfentanyl, N-methyl norfentanyl, 2F-deschloroketamine, 3,4-methylenedioxy-alpha-PHP, eutylone, and N-ethyl hexedrone.  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