全文获取类型
收费全文 | 626篇 |
免费 | 11篇 |
专业分类
各国政治 | 12篇 |
工人农民 | 70篇 |
世界政治 | 125篇 |
外交国际关系 | 25篇 |
法律 | 315篇 |
中国政治 | 8篇 |
政治理论 | 80篇 |
综合类 | 2篇 |
出版年
2020年 | 4篇 |
2019年 | 5篇 |
2018年 | 18篇 |
2017年 | 19篇 |
2016年 | 29篇 |
2015年 | 17篇 |
2014年 | 15篇 |
2013年 | 64篇 |
2012年 | 20篇 |
2011年 | 16篇 |
2010年 | 19篇 |
2009年 | 18篇 |
2008年 | 27篇 |
2007年 | 34篇 |
2006年 | 31篇 |
2005年 | 34篇 |
2004年 | 16篇 |
2003年 | 23篇 |
2002年 | 36篇 |
2001年 | 8篇 |
2000年 | 8篇 |
1999年 | 13篇 |
1998年 | 12篇 |
1997年 | 5篇 |
1996年 | 6篇 |
1995年 | 6篇 |
1994年 | 8篇 |
1993年 | 12篇 |
1992年 | 10篇 |
1991年 | 8篇 |
1990年 | 6篇 |
1989年 | 6篇 |
1988年 | 6篇 |
1987年 | 10篇 |
1986年 | 9篇 |
1985年 | 9篇 |
1984年 | 6篇 |
1983年 | 5篇 |
1982年 | 5篇 |
1981年 | 6篇 |
1980年 | 3篇 |
1979年 | 2篇 |
1978年 | 5篇 |
1977年 | 4篇 |
1976年 | 2篇 |
1974年 | 4篇 |
1972年 | 3篇 |
1970年 | 1篇 |
1967年 | 1篇 |
1943年 | 1篇 |
排序方式: 共有637条查询结果,搜索用时 15 毫秒
201.
Erin T. Barker Andrea L. Howard Rosanne Villemaire-Krajden Nancy L. Galambos 《Journal of youth and adolescence》2018,47(6):1252-1266
Self-reported depressive experiences are common among university students. However, most studies assessing depression in university students are cross-sectional, limiting our understanding of when in the academic year risk for depression is greatest and when interventions may be most needed. We examined within-person change in depressive symptoms from September to April. Study 1 (N?=?198; 57% female; 72% white; Mage?=?18.4): Depressive symptoms rose from September, peaked in December, and fell across the second semester. The rise in depressive symptoms was associated with higher perceived stress in December. Study 2 (N?=?267; 78.7% female; 67.87% white; Mage?=?21.25): Depressive symptoms peaked in December and covaried within persons with perceived stress and academic demands. The results have implications for understanding when and for whom there is increased risk for depressive experiences among university students. 相似文献
202.
A two-year collaboration among researchers, practitioners, and advisers from the major national organizations of mediators produced a job analysis relevant to mediators involved in interpersonal disputes (i.e., divorce, community, formal parent-child mediation, etc.). One byproduct of the job analysis is an extensive list of the knowledge areas and skills important to effective job performance. This essay defines the knowledge and skill areas that emerged from the analysis. 相似文献
203.
Nancy Rumbaugh Whitesell Nancy L. Asdigian Carol E. Kaufman Cecelia Big Crow Carly Shangreau Ellen M. Keane Alicia C. Mousseau Christina M. Mitchell 《Journal of youth and adolescence》2014,43(3):437-453
Substance use often begins earlier among American Indians compared to the rest of the United States, a troubling reality that puts Native youth at risk for escalating and problematic use. We need to understand more fully patterns of emergent substance use among young American Indian adolescents, risk factors associated with escalating use trajectories, and protective factors that can be parlayed into robust prevention strategies. We used growth mixture modeling with longitudinal data from middle-school students on a Northern Plains reservation (Wave 1 N = 381, M age at baseline = 12.77, 45.6 % female) to identify subgroups exhibiting different trajectories of cigarette, alcohol, and marijuana use. We explored how both risk (e.g., exposure to stressful events, deviant peers) and protective (e.g., positive parent–child relationships, cultural identity) factors were related to these trajectories. For all substances, most youth showed trajectories characterized by low rates of substance use (nonuser classes), but many also showed patterns characterized by high and/or escalating use. Across substances, exposure to stress, early puberty, and deviant peer relationships were associated with the more problematic patterns, while strong relationships with parents and prosocial peers were associated with nonuser classes. Our measures of emergent cultural identity were generally unrelated to substance use trajectory classes among these young adolescents. The findings point to the importance of early substance use prevention programs for American Indian youth that attenuate the impact of exposure to stressful events, redirect peer relationships, and foster positive parent influences. They also point to the need to explore more fully how cultural influences can be captured. 相似文献
204.
205.
206.
207.
208.
Civil society organizations are facing increasing political restrictions all over the world. Frequently, these restrictions apply to the foreign funding of NGOs and thus curtail the space for external civil society support, which, since the 1990s, has become a key element in international democracy and human rights promotion. This so-called ‘closing space’ phenomenon has received growing attention by civil society activists, policymakers and academics. Existing studies (and political responses), however, neglect the crucial normative dimension of the problem at hand: As we show, the political controversy over civil society support is characterized by norm contestation, and this contestation reveals competing perceptions of in/justice and touches upon core principles of contemporary world order. Taking this dimension into account is essential if we are to academically understand, and politically respond to, the ‘closing space’ challenge. It is also highly relevant with regard to current debates on how to conceptualize and construct order in a world that is plural in many regards and in which liberal norms are fundamentally contested. Empirically, the paper combines an assessment of the global debate about closing space in the UN Human Rights Council with an analysis of a specific controversy over the issue in US-Egyptian relations. 相似文献
209.
Emily C. Jenchura Nancy A. Gonzales Jenn-Yun Tein Linda J. Luecken 《Journal of youth and adolescence》2017,46(4):787-800
Gendered interpersonal processes may explain the elevated rates of internalizing symptoms among adolescent girls relative to boys. Two such processes are peer social rejection and social support. The current study assessed for gender differences in the effect of 7th grade peer social rejection on 10th grade internalizing symptoms, as well as the moderating effects of social support from family and from friends in a sample of 749 (49?% female) Mexican American adolescents, an understudied population with a unique social culture. Peer social rejection significantly predicted increased internalizing symptoms for girls. Although buffering effects of social support were not found, there were significant moderating effects of both sources of support for boys, such that at low levels of social support, peer social rejection was associated with decreased internalizing symptoms, and at high levels of social support, peer social rejection was associated with increased internalizing symptoms. The results help unpack the nuances of the interpersonal processes that lead to differential adjustment for adolescent boys and girls at this critical developmental stage. 相似文献
210.
Kevin T. Wolff Michael T. Baglivio Jonathan Intravia Mark A. Greenwald Nathan Epps 《Journal of youth and adolescence》2017,46(7):1371-1393
Both residential mobility and community disadvantage have been shown to be associated with negative outcomes for adolescents generally and juvenile offenders specifically. The current study examines the effects of moving among a large sample (n = 13,096) of previously adjudicated youth (31.6 % female, 41.2 % Black, 16.5 % Hispanic). Additionally, we examine whether moving upward to a more affluent neighborhood, moving downward to an area of greater disadvantage, or moving laterally to a similar neighborhood tempers the effects of residential mobility. We use a combination of analytical techniques, including propensity score matching to untangle the effects of mobility sans pre-existing conditions between movers and non-movers. Results show relocation increases recidivism, irrespective of the direction of the move with regard to socioeconomic context. Moving upward has the most detrimental impact for adjudicated male adolescents, while downward relocations evidenced the largest effect for female youth. Implications for policy and future research needs are discussed. 相似文献