全文获取类型
收费全文 | 2226篇 |
免费 | 46篇 |
专业分类
各国政治 | 262篇 |
工人农民 | 33篇 |
世界政治 | 103篇 |
外交国际关系 | 102篇 |
法律 | 1414篇 |
中国共产党 | 7篇 |
中国政治 | 10篇 |
政治理论 | 333篇 |
综合类 | 8篇 |
出版年
2023年 | 8篇 |
2022年 | 11篇 |
2021年 | 24篇 |
2020年 | 39篇 |
2019年 | 43篇 |
2018年 | 108篇 |
2017年 | 90篇 |
2016年 | 114篇 |
2015年 | 91篇 |
2014年 | 59篇 |
2013年 | 179篇 |
2012年 | 186篇 |
2011年 | 117篇 |
2010年 | 63篇 |
2009年 | 85篇 |
2008年 | 116篇 |
2007年 | 140篇 |
2006年 | 144篇 |
2005年 | 71篇 |
2004年 | 73篇 |
2003年 | 57篇 |
2002年 | 72篇 |
2001年 | 53篇 |
2000年 | 55篇 |
1999年 | 34篇 |
1998年 | 15篇 |
1997年 | 13篇 |
1996年 | 10篇 |
1995年 | 6篇 |
1994年 | 11篇 |
1993年 | 3篇 |
1992年 | 9篇 |
1991年 | 11篇 |
1990年 | 16篇 |
1989年 | 13篇 |
1988年 | 12篇 |
1987年 | 14篇 |
1986年 | 10篇 |
1985年 | 17篇 |
1984年 | 6篇 |
1983年 | 9篇 |
1982年 | 7篇 |
1981年 | 18篇 |
1980年 | 5篇 |
1979年 | 10篇 |
1978年 | 7篇 |
1973年 | 4篇 |
1972年 | 2篇 |
1970年 | 2篇 |
1964年 | 2篇 |
排序方式: 共有2272条查询结果,搜索用时 15 毫秒
991.
992.
Alexander Bürgin 《Public administration》2020,98(2):378-391
Using illustrations from Energy Union-related legislative initiatives, this article argues that organizational reforms have led to a more top-down approach in the steering of the European Commission, allowing Commission President Juncker a more centralized internal leadership than his predecessor Barroso. Interviews with EU policy-makers revealed two main findings. First, the new filter functions of the seven Vice-Presidents and the Secretariat-General have contributed to a more top-down policy formulation process. Second, horizontal coordination has been improved by the implementation of project teams, and by the abolition of a separate Commissioner for Climate Action. Consequently, the level of ambition of the Commission's policy agenda now depends more than in the past on the Commission President's priorities. 相似文献
993.
Şeref Kerem Çorbacɩoğlu M.D. Sertaç Güler M.D. Erhan Er M.D. Meltem Seviner M.D. Şahin Aslan M.D. Gökhan Aksel M.D. 《Journal of forensic sciences》2016,61(2):551-554
Tear gases are used by police or armed forces for control of riots or social events or by the general population for private self‐defense. These agents are used widely throughout the world, but some harmful effects have reported. In addition, despite well‐defined chemical side effects documented in the literature, data are insufficient regarding mechanical injury due to tear gas capsules. We report three cases of severe maxillofacial injury in patients who had these capsules fired from tear gas guns directly to their faces. The capsules penetrated the patients' faces, causing potentially fatal injuries. To our knowledge, reports of this kind of injury related to tear gas capsules are very rare in the literature. In conclusion, tear gas guns may be very dangerous in terms of human health and they may cause severe injuries, especially when they are not used according to strict guidelines. 相似文献
994.
In multiethnic societies, issues of justice and fairness have become the focus of intense public debate. Although current psychological theories of distributive and procedural justice concentrate on multiple normative rules that guide allocation decisions, there is little research that focuses on the particular relationship between immigrants as recipients and members of the host society as allocators. In the present study Germans were asked about their opinions as to what Turkish immigrants in Germany deserve or are entitled to and to which degree they pose a threat to German culture. Political orientation of the allocator turns out to be an important predictor of how distributive and procedural justice concerns are evaluated. Both conservatives and liberals exhibit a different conception of what counts as distributive justice. With regard to procedural justice, however, liberals and conservatives did not differ much. Moreover, perceived threat to German culture is significantly related to distributive justice but not to procedural justice. 相似文献
995.
The case being reported is one of a shotgun fatality with a thoracic back wound. A 23-year-old man was shot from a distance with trajectories going from back to front and on a nearly horizontal level. These findings observed in the autopsy could represent homicide, but scene investigation and police records were interpreted and it became clear that the case was suicide. Thus, this case shows that the determination of the manner of death requires a careful forensic investigation including autopsy findings, scene investigation, and reconstruction of the events. 相似文献
996.
The influence of site of collection on postmortem morphine concentrations in heroin overdose victims
Crandall CS Kerrigan S Blau RL Lavalley J Zumwalt R McKinney PE 《Journal of forensic sciences》2006,51(2):413-420
When assaying for postmortem morphine concentration, significant site sampling variability exists between central and peripheral sampling sites and even within sampling regions of the body. To study the variation, 76 suspected heroin overdoses were identified. Each had femoral artery (FA) and vein (FV), left and right ventricle and pooled heart blood samples obtained at autopsy. Forty-four tested positive for morphine. Morphine concentrations were determined by gas chromatography/mass spectrometry, with sampling site differences reported as log-transformed ratios and compared by signed rank test.The mean FA to FV ratio for total morphine was 1.2 (range 0-4.5). The ratio for left heart to right heart total morphine was 1.1 (range 0.4-3.2). Left ventricular to FV total morphine ratio was 2.0 (range 0.6-6.9). In these opioid overdose deaths, FA and FV morphine concentrations are usually similar, although up to 4.5-fold differences were noted. Centrally obtained morphine concentrations are on average twice as high compared with peripheral morphine concentrations. Left and right ventricular morphine concentrations were usually similar, although up to 3.2-fold differences were noted (left side higher). 相似文献
997.
998.
999.
L Roewer P Nürnberg E Fuhrmann M Rose O Prokop J T Epplen 《Forensic science international》1990,47(1):59-70
The use of oligonucleotide fingerprinting is evaluated in practical forensic work, using both artificially and systematically produced stains as well as actual case work material. The probes (CAC5/(GTG)5 are superior because of their individualizing potential in comparatively fresh specimens with little DNA degradation, whereas (GACA)4, still produces substantial information when high molecular weight DNA is lacking. The overall limitations and the advantages of this technology are discussed in detail and compared to the classical minisatellite probes. 相似文献
1000.