全文获取类型
收费全文 | 1930篇 |
免费 | 103篇 |
专业分类
各国政治 | 140篇 |
工人农民 | 162篇 |
世界政治 | 241篇 |
外交国际关系 | 123篇 |
法律 | 983篇 |
中国政治 | 7篇 |
政治理论 | 369篇 |
综合类 | 8篇 |
出版年
2023年 | 22篇 |
2022年 | 17篇 |
2021年 | 38篇 |
2020年 | 76篇 |
2019年 | 69篇 |
2018年 | 104篇 |
2017年 | 95篇 |
2016年 | 110篇 |
2015年 | 69篇 |
2014年 | 78篇 |
2013年 | 313篇 |
2012年 | 84篇 |
2011年 | 74篇 |
2010年 | 41篇 |
2009年 | 45篇 |
2008年 | 50篇 |
2007年 | 54篇 |
2006年 | 60篇 |
2005年 | 57篇 |
2004年 | 55篇 |
2003年 | 53篇 |
2002年 | 43篇 |
2001年 | 40篇 |
2000年 | 53篇 |
1999年 | 27篇 |
1998年 | 19篇 |
1997年 | 16篇 |
1996年 | 9篇 |
1995年 | 15篇 |
1994年 | 18篇 |
1993年 | 14篇 |
1992年 | 11篇 |
1991年 | 15篇 |
1990年 | 13篇 |
1989年 | 12篇 |
1988年 | 9篇 |
1987年 | 8篇 |
1986年 | 9篇 |
1985年 | 8篇 |
1984年 | 9篇 |
1983年 | 8篇 |
1982年 | 9篇 |
1979年 | 9篇 |
1978年 | 8篇 |
1974年 | 6篇 |
1973年 | 15篇 |
1971年 | 7篇 |
1970年 | 7篇 |
1966年 | 5篇 |
1965年 | 6篇 |
排序方式: 共有2033条查询结果,搜索用时 8 毫秒
131.
Paraquat (gramoxone) poisoning in south-west Hungary, 1977-1984. Toxicological and histopathological aspects of group intoxication cases 总被引:1,自引:0,他引:1
L Harsányi A Németh A Láng 《The American journal of forensic medicine and pathology》1987,8(2):131-134
Fifty-six cases of paraquat poisoning were examined during the 8 years 1977-1984. The ratio of cases of accidental to intentional ingestion of the poison was 1:1; 23.2% of the total (13/56) survived several months or years. In 1983, 11 subjects accidentally drank 10-30 ml of gramoxone; eight of 11 died in 2 weeks. Toxicological investigations demonstrated rapid elimination of poison from the blood, as well as prolonged fixation of paraquat in the lung, kidney, liver, and spleen tissues. Histological examinations showed multiorgan failure from renal tubular necrosis and pulmonary hemorrhage with alveolar epithelial injury. Pulmonary proliferative changes were present in only two cases who survived 7 and 10 days and in which artificial ventilation was utilized. 相似文献
132.
133.
In the current climate of increasing violence against the police, the use of force by police officers has been the focus of
much dabate, ranging from the use of non lethal incapacitant sprays to the use of lethal forceI. We review literature concerning the use of lethal force by police officers, evaluate its utility for operational contexts,
consider its implications for training and propose that new technological devices can revolutionise the identification of
crucial variables. 相似文献
134.
135.
This paper presents an econometric analysis of the impact of collaboration with universities on the innovative output of firms. We also illustrate the differences that emerge from robustness checks, based on different matching estimators and samples. Our findings strongly suggest that university collaboration has a positive influence on the innovative activity of large manufacturing firms. In contrast, there appears to be an insignificant association between university collaboration and the average service firm’s innovation output. 相似文献
136.
137.
138.
Do Stefanie Coumans Juul M. J. Börnhorst Claudia Pohlabeln Hermann Reisch Lucia A. Danner Unna N. Russo Paola Veidebaum Toomas Tornaritis Michael Molnár Dénes Hunsberger Monica De Henauw Stefaan Moreno Luis A. Ahrens Wolfgang Hebestreit Antje 《Journal of youth and adolescence》2022,51(6):1106-1117
Journal of Youth and Adolescence - Knowing the extent to which mental well-being and stressful life events during adolescence contribute to personality characteristics related to risk-taking... 相似文献
139.
Critical Criminology - This article explores how the concepts of strucutral violence and cultural violence can explain the institutionalization and normalization of violence in children’s... 相似文献
140.