全文获取类型
收费全文 | 479篇 |
免费 | 29篇 |
专业分类
各国政治 | 15篇 |
工人农民 | 64篇 |
世界政治 | 93篇 |
外交国际关系 | 10篇 |
法律 | 221篇 |
中国政治 | 7篇 |
政治理论 | 92篇 |
综合类 | 6篇 |
出版年
2024年 | 1篇 |
2023年 | 6篇 |
2022年 | 3篇 |
2021年 | 7篇 |
2020年 | 15篇 |
2019年 | 16篇 |
2018年 | 26篇 |
2017年 | 27篇 |
2016年 | 14篇 |
2015年 | 20篇 |
2014年 | 14篇 |
2013年 | 47篇 |
2012年 | 28篇 |
2011年 | 15篇 |
2010年 | 12篇 |
2009年 | 10篇 |
2008年 | 34篇 |
2007年 | 37篇 |
2006年 | 22篇 |
2005年 | 29篇 |
2004年 | 17篇 |
2003年 | 16篇 |
2002年 | 15篇 |
2001年 | 7篇 |
2000年 | 3篇 |
1999年 | 2篇 |
1998年 | 5篇 |
1997年 | 2篇 |
1996年 | 3篇 |
1995年 | 3篇 |
1994年 | 2篇 |
1993年 | 7篇 |
1992年 | 4篇 |
1991年 | 4篇 |
1990年 | 5篇 |
1989年 | 1篇 |
1988年 | 4篇 |
1987年 | 1篇 |
1986年 | 2篇 |
1985年 | 8篇 |
1984年 | 3篇 |
1982年 | 5篇 |
1981年 | 3篇 |
1977年 | 1篇 |
1976年 | 1篇 |
1975年 | 1篇 |
排序方式: 共有508条查询结果,搜索用时 265 毫秒
431.
432.
433.
434.
Bernice Raveche Garnett Katherine E. Masyn S. Bryn Austin Matthew Miller David R. Williams Kasisomayajula Viswanath 《Journal of youth and adolescence》2014,43(8):1225-1239
Discrimination is commonly experienced among adolescents. However, little is known about the intersection of multiple attributes of discrimination and bullying. We used a latent class analysis (LCA) to illustrate the intersections of discrimination attributes and bullying, and to assess the associations of LCA membership to depressive symptoms, deliberate self harm and suicidal ideation among a sample of ethnically diverse adolescents. The data come from the 2006 Boston Youth Survey where students were asked whether they had experienced discrimination based on four attributes: race/ethnicity, immigration status, perceived sexual orientation and weight. They were also asked whether they had been bullied or assaulted for these attributes. A total of 965 (78 %) students contributed to the LCA analytic sample (45 % Non-Hispanic Black, 29 % Hispanic, 58 % Female). The LCA revealed that a 4-class solution had adequate relative and absolute fit. The 4-classes were characterized as: low discrimination (51 %); racial discrimination (33 %); sexual orientation discrimination (7 %); racial and weight discrimination with high bullying (intersectional class) (7 %). In multivariate models, compared to the low discrimination class, individuals in the sexual orientation discrimination class and the intersectional class had higher odds of engaging in deliberate self-harm. Students in the intersectional class also had higher odds of suicidal ideation. All three discrimination latent classes had significantly higher depressive symptoms compared to the low discrimination class. Multiple attributes of discrimination and bullying co-occur among adolescents. Research should consider the co-occurrence of bullying and discrimination. 相似文献
435.
436.
Katherine N. Scafide Ph.D. R.N. Daniel J. Sheridan Ph.D. R.N. Nancy R. Downing Ph.D. R.N. Matthew J. Hayat Ph.D. 《Journal of forensic sciences》2020,65(4):1191-1198
Bruises are often difficult to detect on victims of violence, potentially impacting investigation and prosecution. The purpose of our randomized controlled trial was to measure the effectiveness of an alternate light source (ALS) within visible and long ultraviolet spectrums at improving bruise detection compared to white light over time. We also examined the effects of skin color, age, gender, localized fat, and injury mechanism on bruise detection. Participants included 157 healthy adults with balanced sampling across six skin color categories. Bruises were created under the controlled application of a paintball pellet and dropped weight to one upper and lower arm, respectively. Using a crossover design, both bruises were examined 21 times over 4 weeks. Ten different wavelength (350–535 nm) and filter (yellow, orange, red) combinations were used. Multilevel models were used to analyze 2903 examinations on both upper and lower arms. Results in multivariable models showed after controlling for other covariates 415 and 450 nm using a yellow filter had greater odds of detecting evidence of bruising than white light (Upper Arm: 415 nm: OR = 5.34, 95% CI: 4.35–6.56; 450 nm: OR = 4.08, 95% CI: 3.36–4.96). Under either light source, being female and having more localized fat had increased odds of detecting bruises created by the dropped weight (female: OR = 2.96, 95% CI: 2.37–3.70; fat: OR = 1.21, 95% CI: 1.09–1.34). Our results support ALS as an appropriate tool to enhance concurrent physical assessment of bruises in the presence of known history of injury. Future development and evaluation of clinical practice guidelines for ALS application are needed. 相似文献
437.
Katherine W. Paschall Elizabeth T. Gershoff Megan Kuhfeld 《Journal of youth and adolescence》2018,47(6):1164-1177
Research on achievement gaps by race/ethnicity and poverty status typically focuses on each gap separately, and recent syntheses suggest the poverty gap is growing while racial/ethnic gaps are narrowing. In this study, we used time-varying effect modeling to examine the interaction of race/ethnicity and poverty gaps in math and reading achievement from 1986–2005 for poor and non-poor White, Black, and Hispanic students in three age groups (5–6, 9–10, and 13–14). We found that across this twenty-year period, the gaps between poor White students and their poor Black and Hispanic peers grew, while the gap between non-poor Whites and Hispanics narrowed. We conclude that understanding the nature of achievement gaps requires simultaneous examination of race/ethnicity and income. 相似文献
438.
This reflection draws upon two recent ‘moments’ in British sexuality politics—a series of Parliamentary debates on Global LGBT rights and Brighton Pride’s campaign to ‘Highlight Global LGBT Communities’. It contrasts these two moments in order to demonstrate how, at a time when LGBT rights have ostensibly been ‘won’ in the UK, there is an increasing tendency to shift focus to the persecution of SOGI minorities elsewhere in the world. This shift in focus sets up a binary of here versus there that is politically persuasive but ultimately limited and limiting. By reflecting on the way that this growing trend of creating sexual politics elsewhere occurs in two very different locations in British politics and activism, we seek to begin a conversation about the relational affects of placing sexual politics ‘elsewhere’. 相似文献
439.
440.