全文获取类型
收费全文 | 201篇 |
免费 | 16篇 |
专业分类
各国政治 | 16篇 |
工人农民 | 9篇 |
世界政治 | 17篇 |
外交国际关系 | 12篇 |
法律 | 117篇 |
政治理论 | 46篇 |
出版年
2021年 | 2篇 |
2020年 | 4篇 |
2019年 | 3篇 |
2018年 | 3篇 |
2017年 | 11篇 |
2016年 | 11篇 |
2015年 | 7篇 |
2014年 | 4篇 |
2013年 | 29篇 |
2012年 | 10篇 |
2011年 | 7篇 |
2010年 | 6篇 |
2009年 | 13篇 |
2008年 | 10篇 |
2007年 | 13篇 |
2006年 | 16篇 |
2005年 | 15篇 |
2004年 | 9篇 |
2003年 | 8篇 |
2002年 | 9篇 |
2001年 | 7篇 |
2000年 | 3篇 |
1999年 | 1篇 |
1995年 | 1篇 |
1994年 | 3篇 |
1992年 | 1篇 |
1991年 | 1篇 |
1990年 | 1篇 |
1989年 | 2篇 |
1988年 | 1篇 |
1985年 | 2篇 |
1980年 | 2篇 |
1975年 | 1篇 |
1973年 | 1篇 |
排序方式: 共有217条查询结果,搜索用时 15 毫秒
91.
Hoch Stephan Michaelowa Axel Espelage Aglaja Weber Anne-Kathrin 《International Environmental Agreements: Politics, Law and Economics》2019,19(6):595-613
International Environmental Agreements: Politics, Law and Economics - Major new multilateral environmental agreements (MEAs) have entered into force in 2016, including the Paris Agreement (PA)... 相似文献
92.
Matthias Frank M.D. ; Grit Rademacher M.D. ; Uli Schmucker M.D. ; Stephan David M.D. ; Axel Ekkernkamp M.D. 《Journal of forensic sciences》2009,54(2):408-410
Abstract: Authentic black-powder muzzle-loader weapons or replicas are used today primarily for re-enactments of historic battles. A lay actor playing the role of a Prussian infantryman sustained life-threatening gunshot injuries during a recent re-enactment of a historic battle of the Sixth Coalition. As only blank historic muzzle-loading weaponry was used, the origin of the missile causing the wounding was initially unclear. Further investigation revealed a ramrod that had been propelled out of the barrel of another gunner's smooth-bore gun as cause of injury. The ramrod was hurled on a trajectory of more than 20 m, breaking the victim's shouldered barrel and hitting the victim resulting in severe abdominal, thoracic, and upper limb injuries. The critical incidents while handling muzzle-loading weaponry leading to premature discharge are elucidated. Furthermore, this report demonstrates how actual diagnostics and subsequent surgical treatment enabled this infantryman to survive an injury to which his comrades-in-arms would have succumbed 200 years ago. 相似文献
93.
Nanoscience and nanotechnology are science fields which are growing extremely dynamically. Germany occupies the top position
in Europe and is only second to the US worldwide, which can be attributed to growing research promotion by the state. Based
on a general conceptual framework on the role of different types of standards in the research process and technology life
cycle, we argue that the market success of nanotechnology applications depends very much on the development of corresponding
standards, which clarify not only terminology, measurement and testing methods, but also regulate safety and health aspects
and specify interfaces. Other countries, European and international standardisation organisations have launched first initiatives
rather early. However, Germany was not able to translate its excellent starting position in nanotechnology research into a
leading position in standardisation initiatives, which pave the way for future commercialisation of nanotechnology and also
the basis for the next generation of research activities. Based on a survey among stakeholders of German nanotechnology research,
we are able not only to provide a first empirical validation of our conceptual model on the role of standards in the research
process, but also to define the major problems at the interface between research and standardisation, and finally, to recommend
possible options for their solution.
相似文献
Knut BlindEmail: |
94.
95.
96.
97.
98.
Stephan CN 《Journal of forensic sciences》2006,51(4):736-739
In the English literature, facial approximation methods have been commonly classified into three types: "Russian,"American," or "Combination." These categorizations are based on the protocols used, for example, whether methods use average soft-tissue depths (American methods) or require face muscle construction (Russian methods). However, literature searches outside the usual realm of English publications reveal key papers that demonstrate that the Russian category above has been founded on distorted views. In reality, Russian methods are based on limited face muscle construction, with heavy reliance on modified average soft-tissue depths. A closer inspection of the American method also reveals inconsistencies with the recognized classification scheme. This investigation thus demonstrates that all major methods of facial approximation depend on both face anatomy and average soft-tissue depths, rendering common method classification schemes redundant. The best way forward appears to be for practitioners to describe the methods they use (including the weight each one gives to average soft-tissue depths and deep face tissue construction) without placing them in any categorical classificatory group or giving them an ambiguous name. The state of this situation may need to be reviewed in the future in light of new research results and paradigms. 相似文献
99.
Padosch SA Dettmeyer RB Kröner LU Preuss J Madea B 《Forensic science international》2005,149(1):39-45
Occupational accidents, often presenting with lethal outcomes, are a rarely reported issue in forensic literature. However, these incidents are part of medicolegal casework with special regard to reconstruction, liabilities and insurance law-related issues, respectively. We report on a lethal occupational accident in a metropolitan sewage plant. When performing routine controls, a technician fell into an overflow sewer and was immediately pulled into a 30 cm diameter drain. Rescue efforts were initiated immediately, but had to be terminated due to gas warning. Rescue teams continued the search, however, the body remained undiscoverable. Forty-eight hours later, the cadaver was found in an adjacent digester tank, from where it was finally rescued. It was concluded, that the body had been transported between the overflow sewer and the digester tank through a 120 m pipeline with several 90 degrees bendings and branch connections with a minimum diameter of 25 cm at the discharge valve. On medicolegal examination, the cadaver showed marked signs of advanced decomposition caused by anaerobic microorganisms in the 37 degrees C biomass environment. Moreover, as a consequence of the passage of the pipeline system, signs of massive trauma (several comminuted and compound fractures) were disclosed at autopsy. To us, this is the first report on a lethal occupational accident in a sewage plant; our observations demonstrate the rapid progress of putrefaction in a warm anaerobic bacterial environment and the massive trauma sustained. 相似文献
100.
Haedrich C Ortmann C Hofmann OR Seilwinder J Klein A 《Forensic science international》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