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   1212篇
  免费   52篇
各国政治   68篇
工人农民   78篇
世界政治   97篇
外交国际关系   94篇
法律   635篇
中国共产党   1篇
中国政治   18篇
政治理论   272篇
综合类   1篇
  2023年   13篇
  2022年   16篇
  2021年   39篇
  2020年   48篇
  2019年   55篇
  2018年   55篇
  2017年   58篇
  2016年   60篇
  2015年   47篇
  2014年   55篇
  2013年   198篇
  2012年   55篇
  2011年   49篇
  2010年   30篇
  2009年   42篇
  2008年   38篇
  2007年   64篇
  2006年   35篇
  2005年   21篇
  2004年   31篇
  2003年   25篇
  2002年   24篇
  2001年   19篇
  2000年   21篇
  1999年   11篇
  1998年   9篇
  1997年   10篇
  1996年   14篇
  1995年   13篇
  1994年   8篇
  1993年   10篇
  1992年   12篇
  1991年   10篇
  1990年   9篇
  1989年   7篇
  1988年   7篇
  1987年   4篇
  1985年   3篇
  1984年   8篇
  1983年   2篇
  1982年   3篇
  1981年   2篇
  1980年   2篇
  1979年   3篇
  1978年   3篇
  1977年   4篇
  1970年   2篇
  1969年   3篇
  1967年   1篇
  1966年   1篇
排序方式: 共有1264条查询结果,搜索用时 15 毫秒
51.
52.
This article compares strategic public sector HRM practices between 10 small countries that have consistently shown extraordinary economic, social, and governance performance. The fact that these small countries, which are traditionally considered to be disadvantaged, have become benchmarks of good government suggests they have uniquely maximized and leveraged their key resource: people. In search of novel lessons, we assess through secondary data how their public sectors have organized and institutionalized four key HRM activities: 1) selection, 2) appraisal, 3) training, and 4) compensation, and whether they engage in strategic, centralized efforts to architect and “bundle” these activities. Our exploratory case study findings show that these high performing countries employ various integrated efforts to attract the best and brightest into their public sectors, and train and reward them well, although they differ in terms of their centralization dynamics. We conclude our article with seven propositions for future research and implications for emerging small countries.  相似文献   
53.
Although the relation between family relationships and the timing of sexual debut has been the focus of many studies, research on mediating factors is scarce. This study examines whether low levels of family cohesion result in an earlier onset of romantic and sexual experiences, and whether the link between family cohesion and an early sexual debut is mediated by early romantic initiation. A longitudinal sample of 314 adolescent girls and 222 boys, aged 12–17 at Wave 1, completed questionnaires at three measurement points with three year intervals. The results showed that sexual debut followed romantic initiation for 77% of the participants. For early adolescent females (aged 12–14), high levels of family cohesion resulted in a later sexual debut and this association was fully mediated by a delay of romantic initiation. Among boys and older girls, timing of romantic initiation did not mediate the link between family cohesion and timing of sexual initiation. Early adolescent girls who have negative relationships with their parents turn to romantic relationships for intimacy and support, which subsequently provide the opportunity for an early sexual debut. Low levels of family cohesion thus primarily precipitate romantic initiation and sexual initiation appears to be secondary to this process among girls in this age group.  相似文献   
54.
55.
56.
57.
Research indicates that subjective perceptions of socioeconomic status (SES) affect aspects of health and behavior. There has been little research attention to how objective (e.g., education) and subjective aspects of SES may differ in their influence on the substance use of adolescent immigrants. The present study examined whether the associations between subjective SES and substance use, and between parental education and substance use varied by immigrant generation. Data were derived from the 2011 Ontario Student Drug Use and Health Survey, a representative survey of students in the 7th to 12th grade. The sample for this study consisted of 9177 students 12–19 years of age; 48.4 % were female, 66.4 % were White/European, 5.2 % Black/Afro-Caribbean, 16.4 % Asian and 12 % other. Results indicated that subjective SES was more strongly associated with cannabis and alcohol use among first-generation immigrants than among adolescents of other immigrant generations even after adjusting for parental education. First-generation immigrants with low subjective SES had a lower probability of cannabis and regular alcohol use, but there was no difference in use between immigrant generations at high subjective SES. The associations between parental education and cannabis and alcohol use did not significantly vary with immigrant generation. The findings highlight the importance of status beliefs among adolescents, particularly among first-generation immigrants, and suggest that further research attention to such beliefs would enhance our understanding of SES and its links to adolescent health risk behaviors.  相似文献   
58.
59.
Netherlands International Law Review - Unlike the ICTY and ICTR Statutes, the Rome Statute of the ICC provides in Article 75 for various forms of court-ordered reparations for the victims of...  相似文献   
60.
DNA is one of the fastest growing tools in forensic sciences, increasing reliability in forensic reports and judgments. The use of DNA has increased in different areas of the forensic sciences, such as investigation of plant species, where plastid DNA has been used to elucidate and generate evidence in cases of traceability of genetically modified and controlled plants. Even with several advances and the practice of using DNA in forensic investigations, there are just few studies related to the identification of genetic tools for the characterization of drug and nondrug-types of Cannabis. Herein, the whole plastomes of two drug-type Cannabis are presented and have their structures compared with other Cannabis plastomes deposited in the GenBank, focusing in the forensic use of plastome sequences. The plastomes of Cannabis sativa “Brazuka” and of the hybrid Cannabis AK Royal Automatic presented general structure that does not differs from the reported for other C. sativa cultivars. A phylogenomic analyses grouped C. sativa “Brazuka” with the nondrug C. sativa cultivars, while the hybrid Cannabis AK Royal Automatic placed isolated, basal to this group. This suggests that the analysis of plastomes is useful toward genetic identification of hybrids in relation to C. sativa.  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