全文获取类型
收费全文 | 252篇 |
免费 | 7篇 |
专业分类
各国政治 | 5篇 |
工人农民 | 58篇 |
世界政治 | 8篇 |
外交国际关系 | 6篇 |
法律 | 144篇 |
中国政治 | 7篇 |
政治理论 | 31篇 |
出版年
2023年 | 1篇 |
2022年 | 5篇 |
2021年 | 5篇 |
2020年 | 6篇 |
2019年 | 9篇 |
2018年 | 15篇 |
2017年 | 15篇 |
2016年 | 15篇 |
2015年 | 11篇 |
2014年 | 10篇 |
2013年 | 23篇 |
2012年 | 12篇 |
2011年 | 18篇 |
2010年 | 10篇 |
2009年 | 5篇 |
2008年 | 12篇 |
2007年 | 18篇 |
2006年 | 10篇 |
2005年 | 12篇 |
2004年 | 13篇 |
2003年 | 5篇 |
2002年 | 6篇 |
2001年 | 3篇 |
2000年 | 2篇 |
1999年 | 2篇 |
1998年 | 2篇 |
1997年 | 1篇 |
1996年 | 4篇 |
1994年 | 1篇 |
1993年 | 1篇 |
1992年 | 1篇 |
1991年 | 1篇 |
1990年 | 1篇 |
1987年 | 1篇 |
1986年 | 1篇 |
1980年 | 2篇 |
排序方式: 共有259条查询结果,搜索用时 15 毫秒
221.
222.
223.
224.
Susan?M.?McHaleEmail author Ji?Yeon?Kim Marni?Kan Kimberly?A.?Updegraff 《Journal of youth and adolescence》2011,40(6):666-679
A burgeoning body of research documents links between sleep and adjustment in adolescence, but little is known about the role
of the social ecology in promoting healthful sleeping habits. This study was aimed at identifying the socio-cultural correlates
of adolescents’ sleep, including average nighttime sleep duration, average daytime napping, and night-to-night variability
in sleep duration and assessing the links between these dimensions of sleep and adjustment in Mexican-American youth. Participants
were 469 Mexican-American adolescents (50.5% female) and their mothers and fathers. Data on family socio-cultural characteristics
and youth adjustment were collected in home interviews with youth, mothers, and fathers, and, during 7 evening telephone interviews,
adolescents reported on nighttime sleep and daytime napping for the prior 24-h period. Night-to night variability and napping
were more strongly linked to youth depressive symptoms and risky behavior than was average nighttime sleep, whereas nighttime
sleep predicted lower body mass index. Lower parental acculturation and fathers’ familism values predicted more healthful
sleep, and higher levels of family income, parental education and neighborhood crime predicted less healthful sleep. In addition
to illuminating the significance of socio-cultural influences on youths’ sleep, this study contributes to the literature by
documenting the multidimensionality of sleep patterns and their links with adjustment in an understudied population. 相似文献
225.
Annabella M. Gallagher Kimberly A. Updegraff Jenny Padilla Susan M. McHale 《Journal of youth and adolescence》2018,47(10):2100-2113
Sibling relational aggression is an important but understudied dimension of sibling relationships that has potential implications for adolescents’ adjustment. This study examined the longitudinal associations between being the target of sibling relational aggression and adolescent adjustment (i.e., depressive symptoms, risky behavior, self-worth, and romantic competence) among younger and older siblings over a three-year period in adolescence. The moderating roles of birth order, sibling gender, and sibling dyad gender constellation also were tested. Participants were 196 European American adolescent (firstborn-secondborn) sibling pairs who were 16.47 years (SD?=?0.80) and 13.88 years (SD?=?1.15) of age, respectively, at the onset of this study. Data were collected separately from each sibling during home interviews. Multilevel models revealed that being the target of sibling relational aggression was associated with all four adjustment outcomes at the between-person level, and with risky behavior and romantic competence at the within-person level. However, some of these effects were moderated by sibling dyad characteristics. Although often overlooked in the literature on adolescence, sibling relationship dynamics play a key role in youth development and adjustment. 相似文献
226.
Eva Oberle Kimberly A. Schonert-Reichl Kimberly C. Thomson 《Journal of youth and adolescence》2010,39(11):1330-1342
Past studies have investigated relationships between peer acceptance and peer-rated social behaviors. However, relatively
little is known about the manner in which indices of well-being such as optimism and positive affect may predict peer acceptance
above and beyond peer ratings of antisocial and prosocial behaviors. Early adolescence—roughly between the ages of 9 and 14—is
a time in the life span in which individuals undergo a myriad of changes at many different levels, such as changes due to
cognitive development, pubertal development, and social role redefinitions. The present study investigated the relationship
of self-reported affective empathy, optimism, anxiety (trait measures), and positive affect (state measure) to peer-reported
peer acceptance in 99 (43% girls) 4th and 5th grade early adolescents. Because our preliminary analyses revealed gender-specific
patterns, hierarchical regression analyses were conducted to investigate the predictors of peer acceptance separately for
boys and for girls. Girls’ acceptance of peers was significantly predicted by higher levels of empathy and optimism, and lower
positive affect. For boys, higher positive affect, lower empathy, and lower anxiety significantly predicted peer acceptance.
The results emphasize the importance of including indices of social and emotional well-being in addition to peer-ratings in
understanding peer acceptance in early adolescence, and urge for more research on gender-specific peer acceptance. 相似文献
227.
Over the past 5 years, a great deal of attention has been paid to the development of early warning systems for dropout prevention.
These warning systems use a set of indicators based on official school records to identify youth at risk for dropout and then
appropriately target intervention. The current study builds on this work by assessing the extent to which a school disengagement
warning index predicts not only dropout but also other problem behaviors during middle adolescence, late adolescence, and
early adulthood. Data from the Rochester Youth Development Study (N = 911, 73% male, 68% African American, and 17% Latino)
were used to examine the effects of a school disengagement warning index based on official 8th and 9th grade school records
on subsequent dropout, as well as serious delinquency, official offending, and problem substance use during middle adolescence,
late adolescence, and early adulthood. Results indicate that the school disengagement warning index is robustly related to
dropout as well as serious problem behaviors across the three developmental stages, even after controlling for important potential
confounders. High school dropout mediates the effect of the warning index on serious problem behaviors in early adulthood. 相似文献
228.
Kimberly Collins Natalie Harker Georgios A. Antonopoulos 《European Journal on Criminal Policy and Research》2017,23(2):211-225
Registered intermediaries are communication specialists appointed to facilitate the communication of vulnerable witnesses participating in the criminal justice system in England and Wales. Intermediaries assess the vulnerable individual’s communication and provide recommendations to practitioners for how to obtain the individual’s ‘best evidence’ during police interviews and in court. The scheme was implemented nationally in 2008, but has not been subject to rigorous research. The aim of the current article is to provide an account on adults’ perceptions of the vulnerable individual when an intermediary assists their communication in court. In the present study 100 participants viewed a mock cross examination of a child witness either with or without an intermediary present. Participants rated the child’s behaviour and communication, and the quality of the cross examination, across a number of different variables. The age of the child was also manipulated with participants viewing a cross examination of a four or a 13 year old child. The results showed the children’s behaviour and the quality of the cross-examination were more highly rated when the intermediary was involved during cross-examination. The older child’s cross-examination was rated as more developmentally appropriate, however no other age differences or interactions emerged. The findings have positive implications for jury perceptions of children’s testimony when they are assisted by an intermediary in court, regardless of the age of the child witness. The success of the intermediary scheme in England and Wales may encourage the implementation of intermediaries internationally. 相似文献
229.
230.
Heather A. Turner Kimberly J. Mitchell Lisa Jones Anne Shattuck 《Journal of school violence》2017,16(1):1-24
Although there are widely held assumptions about the characteristics of peer bullying that are of greatest concern, very few studies have empirically assessed which characteristics most affect its impact. The current research addresses this gap by using a nationally representative U.S. sample of youth ages 10–20 to examine the relative effects of a variety of potentially aggravating incident characteristics on emotional, physical health, and school-related outcomes. Findings show support for power imbalance and duration (a stronger predictor than repetition) as incident characteristics that exacerbate the negative impact of peer harassment. However, several other incident characteristics have substantial effects with or without the presence of these qualities. Injury, sexual content, involvement of multiple perpetrators, and hate/bias components of peer harassment incidents each increased at least one negative outcome. Findings point to several features of peer harassment that can provide a basis for prioritizing victimization experiences in greatest need of intervention efforts. 相似文献