全文获取类型
收费全文 | 1455篇 |
免费 | 56篇 |
专业分类
各国政治 | 59篇 |
工人农民 | 278篇 |
世界政治 | 117篇 |
外交国际关系 | 90篇 |
法律 | 639篇 |
中国政治 | 21篇 |
政治理论 | 295篇 |
综合类 | 12篇 |
出版年
2023年 | 5篇 |
2022年 | 5篇 |
2021年 | 7篇 |
2020年 | 26篇 |
2019年 | 31篇 |
2018年 | 48篇 |
2017年 | 51篇 |
2016年 | 47篇 |
2015年 | 44篇 |
2014年 | 48篇 |
2013年 | 203篇 |
2012年 | 33篇 |
2011年 | 42篇 |
2010年 | 40篇 |
2009年 | 44篇 |
2008年 | 49篇 |
2007年 | 55篇 |
2006年 | 42篇 |
2005年 | 54篇 |
2004年 | 66篇 |
2003年 | 44篇 |
2002年 | 49篇 |
2001年 | 26篇 |
2000年 | 28篇 |
1999年 | 20篇 |
1998年 | 14篇 |
1997年 | 31篇 |
1996年 | 34篇 |
1995年 | 19篇 |
1994年 | 26篇 |
1993年 | 22篇 |
1992年 | 30篇 |
1991年 | 23篇 |
1990年 | 18篇 |
1989年 | 14篇 |
1988年 | 15篇 |
1987年 | 13篇 |
1986年 | 22篇 |
1985年 | 16篇 |
1984年 | 10篇 |
1983年 | 22篇 |
1982年 | 14篇 |
1981年 | 12篇 |
1980年 | 7篇 |
1979年 | 6篇 |
1978年 | 7篇 |
1977年 | 9篇 |
1976年 | 6篇 |
1974年 | 4篇 |
1973年 | 3篇 |
排序方式: 共有1511条查询结果,搜索用时 15 毫秒
881.
While research suggests that individuals’ interactions with their communities—such as their social integration into the community and perceptions of collective efficacy—impact their perceived risk of victimization, only a handful of studies have examined the influence of these characteristics on crime-specific, emotional fear. Using the Seattle Neighborhoods and Crime Survey, we conduct multilevel models to examine whether social ties and collective efficacy are associated with perceived risk and emotional fear of violence and burglary. The results show that individuals’ social ties to the community are negatively associated with perceived risk, but not emotional fear of violence or burglary, while perceived collective efficacy is negatively related to both cognitive and emotional fear. Moreover, the results suggest that individuals’ social integration into the community functions through perceptions of collective efficacy to predict perceived risk; however, this process does not extend to emotional fear of either violence or burglary. 相似文献
882.
Kate Wolitzky-Taylor Amy Sewart Suzanne Vrshek-Schallhorn Richard Zinbarg Susan Mineka Constance Hammen Lyuba Bobova Emma K. Adam Michelle G. Craske 《Journal of youth and adolescence》2017,46(1):15-27
Childhood and adolescent adversity have been shown to predict later mental and physical health outcomes. Understanding which aspects and developmental timings of adversity are important, and the mechanisms by which they have their impact may help guide intervention approaches. A large subset of adolescents (N?=?457; Female 68.9?%) from the 10-year longitudinal Youth Emotion Project was examined to better understand the associations among childhood/adolescent adversity, substance use disorder, and later health quality. Adolescent (but not childhood) adversities were associated with poorer health in late adolescence/early adulthood, adolescent adversities were associated with subsequent onset of substance use disorder, and adolescent adversities continued to be associated with poorer health in late adolescence/early adulthood after accounting for the variance explained by substance use disorder onset. These associations were observed after statistically accounting for emotional disorders and socioeconomic status. Specific domains of adversity uniquely predicted substance use disorder and poorer health outcomes. In contrast with current recent research, our findings suggest the association between childhood/adolescent adversity and poorer health outcomes in late adolescence and emerging adulthood are not entirely accounted for by substance use disorder, suggesting efforts to curtail family-based adolescent adversity may have downstream health benefits. 相似文献
883.
H. Luz McNaughton Reyes Vangie A. Foshee May S. Chen Susan T. Ennett 《Journal of youth and adolescence》2017,46(8):1727-1742
Theory and research suggest that there may be significant heterogeneity in the development, manifestation, and consequences of adolescent dating violence that is not yet well understood. The current study contributed to our understanding of this heterogeneity by identifying distinct patterns of involvement in psychological, physical, and sexual dating violence victimization and perpetration in a sample of Latino youth (n?=?201; M?=?13.87 years; 42% male), a group that is understudied, growing, and at high risk for involvement in dating violence. Among both boys and girls, latent class analyses identified a three-class solution wherein the largest class demonstrated a low probability of involvement in dating violence across all indices (“uninvolved”; 56% of boys, 64% of girls) and the smallest class demonstrated high probability of involvement in all forms of dating violence except for sexual perpetration among girls and physical perpetration among boys (“multiform aggressive victims”; 10% of boys, 11% of girls). A third class of “psychologically aggressive victims” was identified for which there was a high probability of engaging and experiencing psychological dating violence, but low likelihood of involvement in physical or sexual dating violence (34% of boys, 24% of girls). Cultural (parent acculturation, acculturation conflict), family (conflict and cohesion) and individual (normative beliefs, conflict resolution skills, self-control) risk and protective factors were associated with class membership. Membership in the multiform vs. the uninvolved class was concurrently associated with emotional distress among girls and predicted emotional distress longitudinally among boys. The results contribute to understanding heterogeneity in patterns of involvement in dating violence among Latino youth that may reflect distinct etiological processes. 相似文献
884.
885.
Susan T. Ennett Robert W. Faris Andrea M. Hussong Nisha Gottfredson Veronica Cole 《Journal of youth and adolescence》2018,47(11):2337-2352
Although the contributions of friend selection and friend influence to adolescent homophily on substance use behaviors has been of enduring research interest, moderators of these processes have received relatively little research attention. Identification of factors that dampen or amplify selection and influence on substance use behaviors is important for informing prevention efforts. Whereas prior research has examined adolescent drinking, smoking, and marijuana use, the current study examined whether friend selection and friend influence operated on substance use involvement, an indicator of problematic use, and whether depressive symptomology moderated these processes. In addition, it examined whether these relationships varied from grade 6 to 12. The study used a cohort-sequential design in which three cohorts of youth (first surveyed in grades, 6, 7, and 8) in six school-based longitudinal social networks were surveyed up to seven times, yielding N?=?6817 adolescents (49% female). Stochastic actor-oriented models were applied to test hypothesized relationships in the six networks, then results were synthesized in a meta-analysis. Depressive symptoms did not moderate selection or influence on substance use involvement at any grade level, but indirectly contributed to diffusion of substance use involvement through school networks via patterns of network ties. Research is needed on contextual factors, particularly in schools, that might account for when, if at all, depressive symptoms condition friend selection and influence on substance use. 相似文献
886.
887.
A review of the dating violence literature reveals a limited number of studies with high school students and few studies that investigate the contextual issues of violence, such as meaning, motivation, and consequences. The present study sought to investigate the extent of dating violence victimization in a New Zealand sample of senior high school students (aged 16 to 18 years) and the perceived reasons for the violence, emotional effects, disclosure of the violence, and relationship consequences. A questionnaire that contained both open-ended and forced-choice items pertaining to experiences of violence and its consequences was developed using material gathered from focus group discussions with high school students. Findings showed gender similarity in the extent of violence and a number of significant gender differences in the aftermath of violence, particularly in the area of sexual coercion. These findings are discussed in the context of future research and prevention of dating violence. 相似文献
888.
889.
890.
Craig N. Murphy Robert T. Kudrle James D. Morrow Michael Brecher Mary K. Meyer Susan S. Northcutt Yosef Lapid Gwendolyn M. Hall & Zeev Moaz 《国际研究展望》2000,1(2):207-215
During fall 2000, all ISA members will be asked to vote on a set of changes to the association's constitution. Most of the proposed changes are required to bring ISA's constitution up to date with current practices and association circumstances (for example, instead of having only the Editor of ISQ as a member of the Governing Council, one of the proposed changes adds the Editors of ISR and ISP to the council). In the course of examining and reflecting on possible changes to the constitution, the ISA Governing Council discovered that there was controversy among its membership regarding how officers are elected. As a result of this discussion, the Governing Council voted to put a referendum before the membership concerning the election issue and the other requested constitutional changes (though only the officer election issue is discussed in the following pages). To ensure that all members of the association are aware of what the election issues are, we have asked members representing the various positions to discuss their views in the pages of ISP . In addition, Craig Murphy, 2000–2001 ISA President, has written an introduction to the election debate that is printed below. ISA members will be asked to choose between these options in a mail ballot this fall. 相似文献