全文获取类型
收费全文 | 5454篇 |
免费 | 191篇 |
专业分类
各国政治 | 278篇 |
工人农民 | 177篇 |
世界政治 | 323篇 |
外交国际关系 | 182篇 |
法律 | 3780篇 |
中国政治 | 43篇 |
政治理论 | 838篇 |
综合类 | 24篇 |
出版年
2021年 | 37篇 |
2020年 | 82篇 |
2019年 | 88篇 |
2018年 | 124篇 |
2017年 | 156篇 |
2016年 | 140篇 |
2015年 | 96篇 |
2014年 | 113篇 |
2013年 | 485篇 |
2012年 | 120篇 |
2011年 | 168篇 |
2010年 | 117篇 |
2009年 | 124篇 |
2008年 | 153篇 |
2007年 | 130篇 |
2006年 | 148篇 |
2005年 | 132篇 |
2004年 | 139篇 |
2003年 | 142篇 |
2002年 | 128篇 |
2001年 | 241篇 |
2000年 | 179篇 |
1999年 | 146篇 |
1998年 | 54篇 |
1997年 | 61篇 |
1996年 | 53篇 |
1995年 | 60篇 |
1994年 | 57篇 |
1993年 | 66篇 |
1992年 | 109篇 |
1991年 | 116篇 |
1990年 | 107篇 |
1989年 | 101篇 |
1988年 | 117篇 |
1987年 | 104篇 |
1986年 | 128篇 |
1985年 | 133篇 |
1984年 | 105篇 |
1983年 | 96篇 |
1982年 | 50篇 |
1981年 | 54篇 |
1979年 | 53篇 |
1978年 | 51篇 |
1977年 | 38篇 |
1975年 | 39篇 |
1974年 | 52篇 |
1972年 | 35篇 |
1971年 | 48篇 |
1970年 | 47篇 |
1968年 | 49篇 |
排序方式: 共有5645条查询结果,搜索用时 15 毫秒
41.
42.
43.
O. M. Laleye Victor Ayeni 《International Journal of Politics, Culture, and Society》1993,6(4):555-571
Conclusion We have in this paper tried to set out a framework which can facilitate analysis of the current and future situation of traditional rulership in contemporary African society. Our presentation of a proposed model for such an analysis is no doubt still in its elementary stages of formation. Much more work needs to be done. Nevertheless, our analysis has revealed certain salient elements and uncovered certain unresolved issues. If traditional rulers genuinely care about their own future they will have to devise techniques of legitimation which not only endear them to the government and the non-traditional elites, but also, and more importantly, to the mass of the people. True, the original role of the traditional rulers may be no more; still, it may be possible to salvage what is left. 相似文献
44.
N C Martin A A Pirie L V Ford C L Callaghan K McTurk D Lucy D G Scrimger 《Science & justice》2006,46(3):179-184
In the forensic science laboratory, the recovery of spermatozoa from vaginal swabs, or vaginal cells from penile swabs, can help determine if sexual intercourse may have taken place. There are several methods used to recover spermatozoa and cells from the swabs before visualisation on a microscope slide and most of these methods use water. Phosphate buffered saline (PBS) is a non-toxic solution used in many biological laboratories. Unlike water, PBS prevents cells rupturing or shrivelling up due to osmosis. This study demonstrates that PBS can be used for the extraction of spermatozoa and cells from swabs and that PBS does not affect subsequent DNA profiling. 相似文献
45.
Toxicologic findings in the USS Iowa disaster. 总被引:5,自引:0,他引:5
The toxicologic results from the 47 victims of the explosion on the USS Iowa are presented. Good correlation between carboxyhemoglobin saturations and cause of death was found. There were no correlations between blood cyanide concentrations and causes of death. Volatile analysis suggested postmortem ethanol production rather than antemortem ethanol ingestion. No drugs except nicotine were detected in any of the victims. 相似文献
46.
Presents forensic medical characteristics of the specific features of stabbed and cut injuries of human skin and jersey. Suggests a complex of signs that will help determine some structural parameters of a knife blade and the conditions of its interaction with the injured site of human body. 相似文献
47.
C. Haedrich C. Ortmann O.R. Hofmann J. Seilwinder A. Klein 《Forensic Science International Supplement Series》2006,160(2-3):173-177
In a case of suicidal application of electricity differences between the rectal temperature of the body and the suspected time of death were observed.In order to answer the question whether an electric current from hand to hand over >30 min led to a rise in body temperature FEM-based computer simulations and animal experiments were carried out. Both resulted in a warming of the soft parts in the arm without warming the body core. Thus a temperature-based estimation of the time since death can also be used in cases with electricity as the cause of death. Besides, in the animal experiment we found a spontaneous rise in the body core temperature even without application of electricity which may be a reason for the typical temperature plateau after death. 相似文献
48.
Law enforcement agencies and institutions of higher education have confronted increasing numbers of violent and destructive campus riots and disturbances over the past decade. Problematic is the fact that these riots typically have no underlying cause, other than students’ quest for excitement. Responding to gaps in the empirical literature about these events, this study used data from two waves of surveys to systematically examine those involved in a recurring problem event in a college town that was subject to a police crackdown. The analyses drew on survey responses from over eight hundred event participants in 2002 and 2003, and the results revealed that increased enforcement had a significant effect on crowd composition, including the gender and race of participants, repeat visitors, out-of-town participants, and perceptions about the subjects' overall experience. Implications for law enforcement and community strategies to decrease the size and destructiveness of such problem events are outlined. 相似文献
49.
50.
A mock jury study was conducted to test the hypothesis that perceptions of a witness can be biased by presumptuous cross-examination questions. A total of 105 subjects read a rape trial in which the cross-examiner asked a question that implied something negative about the reputation of either the victim or an expert. Within each condition, the question was met with either a denial, an admission, or an objection from the witness's attorney. Results indicated that although ratings of the victim's credibility were not affected by the presumptuous question, the expert's credibility was significantly diminished—even when the question had elicited a denial or a sustained objection. Conceptual and practical implications of these findings are discussed.This research was supported by funds provided to the first author by the Bronfman Science Center. 相似文献