全文获取类型
收费全文 | 421篇 |
免费 | 23篇 |
专业分类
各国政治 | 36篇 |
工人农民 | 18篇 |
世界政治 | 28篇 |
外交国际关系 | 18篇 |
法律 | 224篇 |
中国政治 | 7篇 |
政治理论 | 110篇 |
综合类 | 3篇 |
出版年
2021年 | 2篇 |
2020年 | 6篇 |
2019年 | 9篇 |
2018年 | 10篇 |
2017年 | 17篇 |
2016年 | 16篇 |
2015年 | 18篇 |
2014年 | 13篇 |
2013年 | 65篇 |
2012年 | 18篇 |
2011年 | 15篇 |
2010年 | 9篇 |
2009年 | 15篇 |
2008年 | 18篇 |
2007年 | 10篇 |
2006年 | 16篇 |
2005年 | 6篇 |
2004年 | 7篇 |
2003年 | 8篇 |
2002年 | 19篇 |
2001年 | 6篇 |
2000年 | 11篇 |
1999年 | 6篇 |
1998年 | 11篇 |
1997年 | 10篇 |
1996年 | 5篇 |
1995年 | 2篇 |
1994年 | 6篇 |
1993年 | 5篇 |
1992年 | 2篇 |
1991年 | 6篇 |
1990年 | 8篇 |
1989年 | 5篇 |
1988年 | 2篇 |
1987年 | 6篇 |
1986年 | 2篇 |
1985年 | 5篇 |
1983年 | 6篇 |
1982年 | 3篇 |
1981年 | 3篇 |
1980年 | 5篇 |
1979年 | 2篇 |
1978年 | 4篇 |
1975年 | 2篇 |
1974年 | 2篇 |
1973年 | 4篇 |
1971年 | 2篇 |
1970年 | 2篇 |
1966年 | 4篇 |
1943年 | 1篇 |
排序方式: 共有444条查询结果,搜索用时 328 毫秒
251.
When conventional methods of identification, such as visual recognition and dental comparison, cannot be used to identify a deceased person, it becomes necessary to consider alternative methods. The presence of an orthopedic implant in a body may assist identification if ante-mortem medical records are available for comparison. Another method of identification involves comparison of ante-mortem and postmortem radiographs. Eight cases are reported from Forensic Science SA where the presence of orthopedic implants and/or ante-mortem radiographs were used to try to establish identification. In six cases, positive identification was established, and in two cases with upper limb orthopedic implants, the bones remained unidentified. Manufacturers were unable to provide any information about the distribution and use of the implants that could be of use with identification, as there are no requirements in Australia for individual medical implants to be tracked. Such a system has the potential to aid postmortem identification if serial codes were etched onto implants that could then be traced to manufacturers, surgeons, and recipients of these devices. 相似文献
252.
Ruder TD Hatch GM Ebert LC Flach PM Ross S Ampanozi G Thali MJ 《Journal of forensic sciences》2012,57(3):778-782
Computed tomography (CT) and magnetic resonance (MR) imaging have become important elements of forensic radiology. Whereas the feasibility and potential of CT angiography have long been explored, postmortem MR angiography (PMMRA) has so far been neglected. We tested the feasibility of PMMRA on four adult human cadavers. Technical quality of PMMRA was assessed relative to postmortem CT angiography (PMCTA), separately for each body region. Intra-aortic contrast volumes were calculated on PMCTA and PMMRA with segmentation software. The results showed that technical quality of PMMRA images was equal to PMCTA in 4/4 cases for the head, the heart, and the chest, and in 3/4 cases for the abdomen, and the pelvis. There was a mean decrease in intra-aortic contrast volume from PMCTA to PMMRA of 46%. PMMRA is technically feasible and allows combining the soft tissue detail provided by MR and the information afforded by angiography. 相似文献
253.
Kristin Carbone-Lopez Callie Marie Rennison Ross Macmillan 《Journal of Quantitative Criminology》2012,28(2):319-346
The notion of transitions is an increasingly central concept in contemporary criminology and such issues are particularly
significant in the study of intimate partner violence (IPV). Here, attention focuses on relationship dynamics and movement
into and out of relationships for understanding long-term patterns of victimization over the life course. Still, a focus on
transitions raises questions about how IPV is patterned over time and across relationships and how this contributes to stability
and change in victimization risk over the life span. Our study examines this issue using data from the National Violence Against
Women Survey. Findings from latent transition analyses reveal strong evidence for change in victimization experiences across
the life course. Among women, those who experienced serious, multifaceted violence are most likely to transition out of relationships
followed by transition into subsequent relationships characterized by conflict and aggression and a similar pattern is observed
among men. At the same time, men who experience physical aggression in previous relationships are most likely to transition
into non-violent relationships, while women with similar experiences are much less differentiated in the types of relationships
they enter into. When we account for background characteristics (e.g., respondent’s race, education, and age) and childhood
experiences of parental violence, the latter is particularly significant in accounting for exposure to serious IPV in later
adulthood. Such findings extend our understanding of how life course transitions connect to violence and offending and highlight
processes of continuity and change beyond the traditional focus on criminal offending. 相似文献
254.
255.
A great deal of research has suggested that scholarly and popular concerns about low levels of citizen political knowledge are exaggerated. One implication of that research is that political history would have unfolded just as it did even if electorates had been more politically informed. This paper presents evidence that counters these claims, showing an infusion of electorally relevant information in twenty-seven democracies would have likely led to a lot of vote “switching”, ultimately changing the composition of many governments. The paper also directly and systematically examines what we might call the “enlightened natural constituency” hypothesis, which expects lower-income citizens to vote disproportionately for left parties once armed with more political knowledge. While the basic argument about how political ignorance disproportionately affects the left’s natural constituency is not new, the hypothesis has thus far not been tested. The analysis provides provisional support for the hypothesis. 相似文献
256.
257.
258.
259.
260.
William Ross Campbell Ph.D. Candidate 《German politics》2013,22(3):401-418
The sources of institutional trust are contested in political science. Cultural explanations focusing on engagement in civic activity compete with rationalist theories that link institutional trust with perceptions of economic performance. This article subjects hypotheses derived from these competing explanations to empirical testing, using data from European Values Surveys for East and West Germany. The results cast considerable doubt over the ability of cultural factors to explain institutional trust. Whilst civic engagement is lower in the East than in the West, levels of institutional trust are indistinguishable. Regression analysis shows that cultural factors have a relatively weak impact on attitudes towards political institutions, and that economic performance is a far better model for predicting institutional trust. 相似文献