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   1058篇
  免费   44篇
各国政治   62篇
工人农民   161篇
世界政治   73篇
外交国际关系   41篇
法律   554篇
中国政治   16篇
政治理论   192篇
综合类   3篇
  2023年   11篇
  2022年   7篇
  2021年   7篇
  2020年   30篇
  2019年   32篇
  2018年   55篇
  2017年   45篇
  2016年   44篇
  2015年   36篇
  2014年   31篇
  2013年   131篇
  2012年   31篇
  2011年   36篇
  2010年   25篇
  2009年   41篇
  2008年   35篇
  2007年   46篇
  2006年   35篇
  2005年   40篇
  2004年   41篇
  2003年   30篇
  2002年   32篇
  2001年   13篇
  2000年   22篇
  1999年   14篇
  1998年   11篇
  1997年   13篇
  1996年   16篇
  1995年   8篇
  1994年   15篇
  1993年   6篇
  1992年   11篇
  1991年   17篇
  1990年   12篇
  1989年   10篇
  1988年   6篇
  1987年   5篇
  1986年   16篇
  1985年   13篇
  1984年   8篇
  1983年   11篇
  1982年   11篇
  1981年   7篇
  1980年   8篇
  1979年   4篇
  1978年   5篇
  1977年   6篇
  1975年   4篇
  1974年   4篇
  1971年   2篇
排序方式: 共有1102条查询结果,搜索用时 15 毫秒
871.
872.
ABSTRACT

Recent research on child migration has largely departed from the early trafficking narrative and has tended to highlight young people’s agency and the ways in which children’s migration can play a key role in their ‘future-seeking’. While we acknowledge that Ethiopian girls migrating to the Middle East in order to undertake domestic work primarily move voluntarily for economic reasons, our research – which used a multi-layered, qualitative research approach with girls and their families in the West Gojjam and North Wollo Zones of the Amhara National Regional State – found that the financial, physical, and psychological costs of such migration can far outweigh the benefits. Indeed, we conclude that the earlier trafficking narrative may, in this case, represent the most appropriate lens through which to view girls’ choices and experiences.  相似文献   
873.
In this study we examined the effects of risk factors (perceived neighborhood crime/delinquency problems, neighborhood incivilities) and protective factors (teacher support, family support, peer support) on the school engagement of 123 urban adolescents of color. Age and gender were also examined to determine if different ages (younger or older) or genders (male or female) significantly modified the relationship between the risk factors and school engagement. Results indicated that perceived neighborhood incivilities was uniquely predictive of school engagement. Contrary to hypotheses, different levels of the perceived social support variables did not modify the effects of risky neighborhood conditions on adolescent’s perceived school engagement. Age, but not gender, significantly modified the relationship between perceived family social support and perceived neighborhood crime on adolescents’ reported levels of school engagement. The implications of the results for prevention and intervention programs that address school engagement among early adolescents of color are considered.
Brian P. DalyEmail:
  相似文献   
874.
Romantic relationship involvement has repeatedly been associated with the incidence of externalizing behavior problems, but little is known about the nature and developmental significance of this relation. The current study extends previous research by investigating whether and through what processes romantic relationships distinctively predict externalizing behavior problems during adolescence compared to emerging adulthood. Data came from the Minnesota Longitudinal Study of Parents and Children. As predicted, higher levels of romantic relationship security at 16 years were associated with lower levels of externalizing behavior problems during both adolescence and emerging adulthood, but this inverse relation was stronger for emerging adults than for adolescents. This relation was not attributable either to earlier quality of family and peer relationships or emerging adulthood competence. Thus, security of romantic relationships may become increasingly predictive of individual differences in externalizing behavior problems as individuals move from adolescence to emerging adulthood.
Manfred H. M. van DulmenEmail:

Manfred H. M. van Dulmen   Kent State University, is an Assistant Professor in the Department of Psychology. His major research interests include the interpersonal antecedents and consequences of adolescent antisocial behavior as well as developmental methodology. Elizabeth A. Goncy   is a graduate student in Clinical Psychology at Kent State University. Her major research interests include parent-child relationships and aggressive and antisocial behavior in adolescence. Katherine C. Haydon    is a graduate student at the Institute of Child Development at the University of Minnesota. Her major research interests include romantic attachment processes and developmental precursors of romantic relationship functioning. W. Andrew Collins   University of Minnesota, is the Morse-Alumni Distinguished Professor of Child Development. His major research interests include trajectories and processes of change in close relationships.  相似文献   
875.
A large proportion of perinatally HIV-infected (PHIV) children are becoming adolescents and exploring their sexuality. This study explored the prevalence of sexual behaviors (kissing, touching, engaging in oral sex, or having vaginal/anal intercourse) in a sample of predominantly ethnic minority youths (N = 339; 54.1% Black and 30.4% Latino; 51% female; ages 9–16) perinatally exposed to HIV (61% HIV+). Using logistic regression, we tested the association between sexual behavior and HIV status, demographic characteristics, and peer influences regarding sexual behavior. PHIV youth were less likely to be sexually active. Among sexually active youth, PHIV youth were more likely to engage in touching behavior than HIV-negative youth and were less likely to engage in penetrative sex. Youths reporting that a greater number of their peers believed that sexually active boys were “cool” or “popular” were more likely to report sexual behavior. The association between sexual behavior and peers believing sexually active girls were “cool” or “popular” varied by age, gender, and HIV status. Furthermore, friends’ sexual activity was associated with sexual intercourse. Prevention programs should strengthen messages addressing peer norms regarding sexuality, as well as address specific issues related to adolescent HIV.
Claude Ann MellinsEmail:
  相似文献   
876.
Journal of Youth and Adolescence - Discrepancies between parents’ and adolescents’ reports in parental knowledge of adolescents’ daily activities and whereabouts are common and...  相似文献   
877.
878.
879.
880.
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