全文获取类型
收费全文 | 3100篇 |
免费 | 93篇 |
专业分类
各国政治 | 197篇 |
工人农民 | 150篇 |
世界政治 | 256篇 |
外交国际关系 | 198篇 |
法律 | 1366篇 |
中国政治 | 42篇 |
政治理论 | 931篇 |
综合类 | 53篇 |
出版年
2023年 | 22篇 |
2022年 | 16篇 |
2021年 | 29篇 |
2020年 | 52篇 |
2019年 | 80篇 |
2018年 | 99篇 |
2017年 | 106篇 |
2016年 | 100篇 |
2015年 | 87篇 |
2014年 | 120篇 |
2013年 | 441篇 |
2012年 | 117篇 |
2011年 | 83篇 |
2010年 | 83篇 |
2009年 | 105篇 |
2008年 | 99篇 |
2007年 | 116篇 |
2006年 | 101篇 |
2005年 | 89篇 |
2004年 | 96篇 |
2003年 | 95篇 |
2002年 | 90篇 |
2001年 | 57篇 |
2000年 | 54篇 |
1999年 | 48篇 |
1998年 | 40篇 |
1997年 | 41篇 |
1996年 | 37篇 |
1995年 | 41篇 |
1994年 | 47篇 |
1993年 | 48篇 |
1992年 | 38篇 |
1991年 | 35篇 |
1990年 | 23篇 |
1989年 | 39篇 |
1988年 | 21篇 |
1987年 | 29篇 |
1986年 | 27篇 |
1985年 | 34篇 |
1984年 | 41篇 |
1983年 | 32篇 |
1982年 | 38篇 |
1981年 | 32篇 |
1980年 | 24篇 |
1979年 | 14篇 |
1978年 | 15篇 |
1977年 | 15篇 |
1975年 | 17篇 |
1974年 | 13篇 |
1973年 | 17篇 |
排序方式: 共有3193条查询结果,搜索用时 0 毫秒
91.
Research has linked the role of education to delinquency, but much of the focus has been on general population samples and
with little attention to demographic differences. Employing a cumulative disadvantage framework that integrates elements of
informal social control and labeling theories, this article examines whether academic achievement serves as a positive turning
point and re-directs juvenile delinquents away from subsequent offending. Attention is also given to race/sex contingencies.
Using a sample of 4,147 delinquents released from Florida correctional institutions (86% male, 57% non-White, average age
at release = 16.8 years), propensity score analysis yielded two findings: youth with above average academic achievement while
incarcerated were significantly more likely to return to school post-release, and youth with above average attendance in public
school were significantly less likely to be re-arrested in the 1-year post-release period. While the academic gains were pronounced
among African-American males, the preventive effects of school attendance are similar across race and sex, suggesting that
education can be a part of a larger prevention effort that assists juvenile delinquents in successful community re-entry. 相似文献
92.
Caroline Kanerick 《Women's history review》2013,22(5):685-702
As a best‐selling writer of popular romances during the first half of the twentieth century, Berta Ruck (1878–1978) has been characterised as a producer of ‘omelettes of frivolity and sweetness’ whose appeal was confined to adolescent girls and the servant classes. Closer attention to some of the early novels and to her own evaluation of her work, however, reveals her attempts to confront and articulate the impact of societal change upon a generation whose world was being irrevocably altered by the Great War and its aftermath. Her almost forensic attention to local detail and her treatment of contemporary questions of gender identity make her a compelling chronicler of the period and lend credibility to her claims of a broader readership than that generally associated with the genre. 相似文献
93.
This ‘Viewpoint’ assesses some recent approaches to the study of feminisms across the globe during the c. 1870–1930 period. At a moment when historians are working towards the commemoration of women's partial enfranchisement in Britain in 1918, we consider the intellectual frameworks that most effectively celebrate this achievement whilst also situating the Act within its complex, global context. Reflecting on discussions held at a recent workshop at the University of Oxford, we advocate the effectiveness of a global and comparative methodological approach to question what ‘feminism’ meant to contemporary campaigners. The scrutiny of localised and national issues within comparative and global contexts illuminates the plurality of definitions, vocabularies, and categories relating to feminism that were being used (and rejected) during this era and raises broader questions for the study and practice of feminist history. 相似文献
94.
95.
Thomas G. Weiss 《Third world quarterly》2015,36(8):1493-1509
Russia’s challenge to the post-cold war order, and the rise of Islamic State have resulted in a call for increased military spending among NATO members. Despite the increased demand for UN peace operations, any expansion is unlikely to benefit the world organisation. Instead we see an increasing reliance upon regional organisations like the African Union, European Union and NATO, in particular, for robust peace operations. An analysis of Western states (France, Germany and the USA) suggests that future investments in weaponry, technology and staff will primarily benefit NATO and the EU, but not the United Nations. 相似文献
96.
97.
98.
Jean Marie McGloin Christopher J. Sullivan Kyle J. Thomas 《Journal of youth and adolescence》2014,43(9):1436-1452
This article focuses on the degree to which friends’ influence on substance use is conditioned by the consistency between their behavior and that of schoolmates (individuals enrolled in the same school, but not identified as friends), contributing to the literature on the complexity of interactive social influences during adolescence. Specifically, it hypothesizes that friends’ influence will diminish as their norms become less similar to that of schoolmates. The authors also propose that this conditioning relationship is related to the density of the friendship group. This study uses data from the National Longitudinal Survey of Adolescent Health (AddHealth) (n ~ 8,000, 55 % female) to examine the interactive relationship between friend and schoolmate influences on adolescent substance use (smoking and drinking). The sample contains students ranging from age 11 to 22 and is 60 % White. The findings demonstrate that, as the substance use of the friendship group becomes more dissimilar from schoolmates’ substance use, the friendship group’s influence on adolescent substance use diminishes. Further, the results demonstrate that this conditioning relationship does not emerge when the friendship group is highly dense. 相似文献
99.
Frank DiCataldo Rachel L. Serafinski Danielle C. Beam Thomas Grisso 《Juvenile & family court journal》2020,71(4):35-51
Public-sector mental health systems have set forth specialized practice competencies for forensic mental health clinicians conducting court-ordered examinations. This study examined a sample of feedback letters to clinicians who submitted mid-training and final reports for review as part of the requirements for certification as a juvenile court clinician. The most common feedback points were insufficient/irrelevant historical data, problems with clarity/organization of the report, problems with interview/mental status examination, and problems with competency to stand trial data/opinions. Clinicians had fewer deficiencies in their final report compared to their mid-training report, supporting the perspective that forensic training and supervision is associated with better quality reports. 相似文献
100.
Cristiane Barbosa D'Oliveira Matielo M.S. Rafael Plá Matielo Lemos Ph.D. Deise Schröder Sarzi M.S. Lilian de Oliveira Machado Ph.D. Dalvan Carlos Beise Bac. Priscila Caroline Thiago Dobbler M.S. Renata Machado Castro Bac. Mauro Sander Fett Ph.D. Luiz Fernando Würdig Roesch Ph.D. Flávio Anastácio de Oliveira Camargo Ph.D. Valdir Marcos Stefenon Ph.D. 《Journal of forensic sciences》2020,65(1):259-265
DNA is one of the fastest growing tools in forensic sciences, increasing reliability in forensic reports and judgments. The use of DNA has increased in different areas of the forensic sciences, such as investigation of plant species, where plastid DNA has been used to elucidate and generate evidence in cases of traceability of genetically modified and controlled plants. Even with several advances and the practice of using DNA in forensic investigations, there are just few studies related to the identification of genetic tools for the characterization of drug and nondrug-types of Cannabis. Herein, the whole plastomes of two drug-type Cannabis are presented and have their structures compared with other Cannabis plastomes deposited in the GenBank, focusing in the forensic use of plastome sequences. The plastomes of Cannabis sativa “Brazuka” and of the hybrid Cannabis AK Royal Automatic presented general structure that does not differs from the reported for other C. sativa cultivars. A phylogenomic analyses grouped C. sativa “Brazuka” with the nondrug C. sativa cultivars, while the hybrid Cannabis AK Royal Automatic placed isolated, basal to this group. This suggests that the analysis of plastomes is useful toward genetic identification of hybrids in relation to C. sativa. 相似文献