全文获取类型
收费全文 | 1618篇 |
免费 | 151篇 |
专业分类
各国政治 | 6篇 |
工人农民 | 12篇 |
世界政治 | 3篇 |
外交国际关系 | 62篇 |
法律 | 1224篇 |
中国共产党 | 7篇 |
中国政治 | 146篇 |
政治理论 | 60篇 |
综合类 | 249篇 |
出版年
2024年 | 9篇 |
2023年 | 20篇 |
2022年 | 40篇 |
2021年 | 32篇 |
2020年 | 58篇 |
2019年 | 51篇 |
2018年 | 41篇 |
2017年 | 56篇 |
2016年 | 47篇 |
2015年 | 60篇 |
2014年 | 105篇 |
2013年 | 119篇 |
2012年 | 113篇 |
2011年 | 120篇 |
2010年 | 117篇 |
2009年 | 126篇 |
2008年 | 114篇 |
2007年 | 133篇 |
2006年 | 78篇 |
2005年 | 48篇 |
2004年 | 55篇 |
2003年 | 52篇 |
2002年 | 50篇 |
2001年 | 36篇 |
2000年 | 23篇 |
1999年 | 6篇 |
1998年 | 10篇 |
1997年 | 2篇 |
1996年 | 5篇 |
1995年 | 2篇 |
1994年 | 8篇 |
1993年 | 3篇 |
1992年 | 4篇 |
1991年 | 6篇 |
1990年 | 4篇 |
1989年 | 5篇 |
1988年 | 1篇 |
1987年 | 2篇 |
1986年 | 2篇 |
1985年 | 1篇 |
1984年 | 3篇 |
1983年 | 2篇 |
排序方式: 共有1769条查询结果,搜索用时 0 毫秒
881.
Jussi Kasperi Ronkainen 《Citizenship Studies》2011,15(2):247-263
Multiple citizenship has in recent decades moved from an unwanted phenomenon in international relations to a fairly common transnational status. Multiple citizenship has nevertheless so far been studied mainly as a political and juridical status by comparing national legislations. Much less notice has been given to actual dual citizens' citizen participation and construction of citizens' identities. Only when citizenship is studied as these kinds of practices do the hypothetic possibilities and problems associated with the status get their meanings and contents. This paper concentrates on examining dual citizens' identifications to their respective citizenships and how these affiliations transfer into possible citizen participation. Results are based on extensive analysis of survey (n = 335) and interviews (n = 48) carried out among dual citizens living in Finland. Contents and forms of dual citizens' national identification and citizen participation were reviewed through ideal types: resident-mononationals, expatriate-mononationals, hyphenationals, and shadow-nationals. 相似文献
882.
嗜尸性昆虫的种类鉴定是利用昆虫学知识进行法医学研究的重要步骤之一.近年来研究表明,利用分子生物学技术,特别是线粒体DNA(mitochondrial DNA,mtDNA)序列分析技术对嗜尸性昆虫进行种类鉴别,能够得到较好的效果.本文对嗜尸性昆虫mtDNA的分子生物学特性、结构以及嗜尸性昆虫种类鉴定中常用的mtDNA序列... 相似文献
883.
Kuharić J Kovacic N Marusic P Marusic A Petrovecki V 《Journal of forensic sciences》2011,56(3):788-793
Wormian bones are small ossicles appearing within the cranial sutures in more than 40% of skulls, most commonly at the lambdoid suture and pterion. During the skeletal analysis of an unidentified male war victim, we observed multiple wormian bones and a patent metopic suture. Additionally, the right elbow was deformed, probably as a consequence of an old trauma. The skull was analyzed by cranial measurements and computerized tomography, revealing the presence of cranial deformities including hyperbrachicrania, localized reduction in hemispheral widths, increased cranial capacity, and sclerosis of the viscerocranium. Besides unique anatomical features and their anthropological value, such skeletal abnormalities also have a forensic value as the evidence to support the final identification of the victim. 相似文献
884.
885.
Ishii M Yayama K Motani H Sakuma A Yasjima D Hayakawa M Yamamoto S Iwase H 《Journal of forensic sciences》2011,56(4):960-966
Superimposition has been applied to skulls of unidentified skeletonized corpses as a personal identification method. The current method involves layering of a skull and a facial image of a suspected person and thus requires a real skeletonized skull. In this study, we scanned skulls of skeletonized corpses by computed tomography (CT), reconstructed three-dimensional (3D) images of skulls from the CT images, and superimposed the 3D images with facial images of the corresponding persons taken in their lives. Superimposition using 3D-reconstructed skull images demonstrated, as did superimposition using real skulls, an adequate degree of morphological consistency between the 3D-reconstructed skulls and persons in the facial images. Three-dimensional skull images reconstructed from CT images can be saved as data files and the use of these images in superimposition is effective for personal identification of unidentified bodies. 相似文献
886.
Many studies regarding the legal status of forensic science have relied on the U.S. Supreme Court's mandate in Daubert v. Merrell Dow Pharmaceuticals Inc., and its progeny in order to make subsequent recommendations or rebuttals. This paper focuses on a more pragmatic approach to analyzing forensic science's immediate deficiencies by considering a qualitative analysis of actual judicial reasoning where forensic identification evidence has been excluded on reliability grounds since the Daubert precedent. Reliance on general acceptance is becoming insufficient as proof of the admissibility of forensic evidence. The citation of unfounded statistics, error rates and certainties, a failure to document the analytical process or follow standardized procedures, and the existence of observe bias represent some of the concerns that have lead to the exclusion or limitation of forensic identification evidence. Analysis of these reasons may serve to refocus forensic practitioners' testimony, resources, and research toward rectifying shortfalls in these areas. 相似文献
887.
To find a simple and convenient method for age identification upon age-related pulp cavity narrowing, the mesiodistal diameters of the cervical pulp chamber, the middle and terminal parts of the root canal of the pulp cavity of 620 incisors were measured on radiographs taken in situ in 80 Chinese aged from 15 to 80. It was shown that the three mesiodistal diameters significantly decreased in a negative linear relationship with age (-0.4233 ≤ r ≥ -0.8465) in all incisors, but the narrowing velocity of the cervical pulp chamber and the middle part of the root canal in the maxillary incisors (b = -0.02 mm) was faster than that in the mandibular incisors (b = -0.01 mm). Accordingly, a mathematical model describing the ages as a function of any one of the three mesiodistal diameters of the pulp cavity was deduced, which would be useful for age identification in forensic medicine or archaeology. 相似文献
888.
鉴定意见的审查判断问题 总被引:1,自引:0,他引:1
司法鉴定制度的改革不仅带来了司法鉴定体制的变化,而且促成了相关证据规则的完善。作为一种法定的证据种类,"鉴定意见"不再具有"鉴定结论"的效力,而要像其他证据一样,在证明力和证据能力方面经受法庭上的审查过程。违背法定的鉴定主体资格、鉴定程序、鉴真方法或鉴定文书的形式要件,鉴定人所提供的鉴定意见应被排除于法庭之外。有关鉴定意见的证据能力规则,不仅维护了法律程序的实施,而且可最大限度地增强该证据的证明力。从未来刑事证据法发展的角度来看,只有在宏观层面的司法体制和中观层面的鉴定程序方面发生实质性的变化,处于微观层面的鉴定证据规则才能有更大的制度空间。 相似文献
889.
Magnuson ML Satzger RD Alcaraz A Brewer J Fetterolf D Harper M Hrynchuk R McNally MF Montgomery M Nottingham E Peterson J Rickenbach M Seidel JL Wolnik K;Laboratory Division of the Federal Bureau of Investigation 《Journal of forensic sciences》2012,57(3):636-642
Since the early 1990s, the FBI Laboratory has sponsored Scientific Working Groups to improve discipline practices and build consensus among the forensic community. The Scientific Working Group on the Forensic Analysis of Chemical, Biological, Radiological and Nuclear Terrorism developed guidance, contained in this document, on issues forensic laboratories encounter when accepting and analyzing unknown samples associated with chemical terrorism, including laboratory capabilities and analytical testing plans. In the context of forensic analysis of chemical terrorism, this guidance defines an unknown sample and addresses what constitutes definitive and tentative identification. Laboratory safety, reporting issues, and postreporting considerations are also discussed. Utilization of these guidelines, as part of planning for forensic analysis related to a chemical terrorism incident, may help avoid unfortunate consequences not only to the public but also to the laboratory personnel. 相似文献
890.
Chen T Catcheside DE Stephenson A Hefford C Kirkbride KP Burgoyne LA 《Journal of forensic sciences》2012,57(2):472-477
Abstract: This paper reports the results of a commission to develop a field deployable rapid short tandem repeat (STR)‐based DNA profiling system to enable discrimination between tissues derived from a small number of individuals. Speed was achieved by truncation of sample preparation and field deployability by use of an Agilent 2100 BioanalyserTM. Human blood and tissues were stabbed with heated stainless steel wire and the resulting sample dehydrated with isopropanol prior to direct addition to a PCR. Choice of a polymerase tolerant of tissue residues and cycles of amplification appropriate for the amount of template expected yielded useful profiles with a custom‐designed quintuplex primer set suitable for use with the BioanalyserTM. Samples stored on wires remained amplifiable for months, allowing their transportation unrefrigerated from remote locations to a laboratory for analysis using AmpFlSTR® Profiler Plus® without further processing. The field system meets the requirements for discrimination of samples from small sets and retains access to full STR profiling when required. 相似文献