首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   2694篇
  免费   69篇
各国政治   312篇
工人农民   64篇
世界政治   147篇
外交国际关系   135篇
法律   1599篇
中国共产党   8篇
中国政治   13篇
政治理论   477篇
综合类   8篇
  2023年   17篇
  2022年   20篇
  2021年   34篇
  2020年   62篇
  2019年   71篇
  2018年   134篇
  2017年   126篇
  2016年   153篇
  2015年   125篇
  2014年   85篇
  2013年   262篇
  2012年   114篇
  2011年   102篇
  2010年   104篇
  2009年   132篇
  2008年   144篇
  2007年   183篇
  2006年   166篇
  2005年   95篇
  2004年   94篇
  2003年   70篇
  2002年   77篇
  2001年   66篇
  2000年   61篇
  1999年   33篇
  1998年   20篇
  1997年   15篇
  1996年   10篇
  1995年   8篇
  1994年   12篇
  1993年   4篇
  1992年   10篇
  1991年   14篇
  1990年   12篇
  1989年   14篇
  1988年   12篇
  1987年   11篇
  1986年   10篇
  1985年   14篇
  1984年   6篇
  1983年   10篇
  1982年   3篇
  1981年   13篇
  1979年   9篇
  1978年   6篇
  1974年   2篇
  1973年   3篇
  1972年   2篇
  1970年   2篇
  1964年   2篇
排序方式: 共有2763条查询结果,搜索用时 31 毫秒
921.
Forensic taphonomy in the marine context recently received growing attention. However, only limited information is available about the fate of human bodies at greater sea depth. Following two fatal aircraft accidents (west of Namibia, south of Sicily) human remains were recovered from a depth of 540-580 m (both cases) after 3 months (Namibia)/34 days (Sicily). In the Namibia case fully skeletonized bones were lifted. In the Sicily case a complete, dressed body was found exhibiting a partially skeletonized skull, starting adipocere formation and pink teeth. The rate and mode of decomposition of human bodies in the deep sea varies considerably and is mainly influenced by the local faunal composition. Of special relevance for the understanding of both cases was the oceanographic observation that the highly efficient necrophageous lyssianassids are abundant off Namibia but are rare in the Mediterranean, emphasizing the importance of collaboration of forensic and marine scientists in such case work.  相似文献   
922.
Characteristics associated with psychopathy were, along with the symptoms of aggressive and antisocial behaviour, rated by parents in a community sample of 2535 four-to-eighteen-year-old Dutch children in 2003. An analysis of principal components suggested two dimensions of psychopathic characteristics. The first dimension comprised egocentric characteristics and the second unemotional characteristics. Regression analyses further showed that antisocial behaviour could be predicted by egocentric characteristics, while aggressive behaviour could be predicted by the interaction of egocentric and unemotional characteristics. To avoid unnecessary stigmatisation of youngsters, it is proposed to label the egocentric dimension as the 'social detachment' factor and the unemotional dimension as the 'emotional detachment' factor.  相似文献   
923.
The aim of this study was to reveal histopathological features for differential diagnosis of skin lesions caused by electrocution, flames and abrasions. Based on the causes of the lesions, cases were assigned into three groups. Group 1 included 30 deaths from electric shock. Group 2 included 30 individuals with flame burns who died in the fires. Group 3 included 30 deaths from traffic accidents, from which the individuals had abrasions. Data from the crime scene investigations and macroscopic and microscopic findings from the autopsies allowed determination of the cause of death in all cases. The features of the lesions examined under the light microscope were intraepidermal separation, subepidermal (dermoepidermal) separation, coagulation necrosis in the epidermis, nuclear elongation in the epidermis, dark-staining epidermal nucleus, depth of homogenization in the dermis, and nuclear elongation in the epithelium of hair follicles. A significantly high rate of electrical lesions had intraepidermal separation. The rate of subepidermal separation was slightly more significant in flame burns. A significantly higher rate of electrical lesions had both intraepidermal and subepidermal separation. The rate of coagulation necrosis in the epidermis was significantly the highest in electrical lesions. Although the severity of nuclear elongation was the most significant in electrical lesions, varying degrees of nuclear elongation in the epidermis were present in all three groups. Dark staining of the epidermal nuclei was present in all lesions except for one electrical lesion, though the severity of staining was significant in the abrasion group. The depth of homogenization was slightly more significant in the abrasion group. The rate of nuclear elongation in the epithelium of the hair follicles was significantly lower in the abrasion group. The results of this study revealed that certain morphological changes determined under a light microscope could help the differential diagnoses of electrical lesions, flame burns and abrasions.  相似文献   
924.
Shooting range injuries are generally caused by ballistic accidents, and so far no burn disaster has been reported. In this article we reported a disaster caused by a gunpowder explosion in an indoor shooting range area in Istanbul, Turkey. Fourteen injured people were evacuated from the scene. Our burn center accepted 7 of them. Of the 7 injured people, 2 who were accepted by our burn center, and 3 people who were admitted by another center died. It is clearly identified how this mechanism of injury differs from that of usual burn injuries, due to both the high temperature generated, and the combination of hot and toxic gases produced by the explosion. We described the features of burn injury, and possible reasons of burn disasters.  相似文献   
925.
926.
Der Beitrag besch?ftigt sich mit jener Rolle, die der Rechtsprechung bezüglich der Weiterentwicklung des ?sterreichischen Wohnrechts zukommt. Er zeigt ua die praktische Bedeutung auf, die der richterlichen Rechtsanwendung und Rechtsfortbildung in diesem Bereich zukommt, thematisiert die Frage, ob es in der wohnrechtlichen Rechtsprechung zu "Grenzverwischungen" zwischen Rechtsanwendung und Rechtspolitik kommt und analysiert charakteristische St?rken und Schw?chen von richterlicher Rechtsfortbildung im Wohnrecht.  相似文献   
927.
Der Beitrag besch?ftigt sich erstmals eingehender mit der Frage, ob es mit dem WGG vereinbar ist, wenn von gemeinnützigen Bauvereinigungen – in Ver?nderung der ursprünglichen Finanzierungsstruktur der Baulichkeit – Sukzessivdarlehen aufgenommen werden, um solcherart die aufgrund des Schlagendwerdens von Annuit?tensprüngen bei ?ffentlichen F?rderungsdarlehen drohende Erh?hung des von den Mietern und Nutzungsberechtigten zu leistenden periodischen Entgelts "abzufedern", diese Annuit?tensprünge insoweit also zu "gl?tten". Die enorme praktische Relevanz dieser Fragestellung liegt angesichts der (gegenw?rtig wieder einmal ?u?erst hitzigen) politischen Debatte um leistbares Wohnen bzw Wohnkosten als "Preistreiber" auf der Hand.  相似文献   
928.
929.
When rapid economic growth catapults a country within a few years from the margins of the global economy to middle power status, does global regulatory governance need to brace for a challenge to the status quo? To answer this question, we extend the power transition theory of global economic governance to middle powers: A rising middle power should be expected to challenge the international regulatory status quo only if increasing issue-specific strength of its regulatory state coincides with preferences that diverge from the preferences of the established powers, which are enshrined in the status quo. We examine this argument empirically, focusing on South Korea in the realm of competition law and policy. We find that South Korea, a non-participant in the international competition regime until the 1980s, developed in the 1990s substantial regulatory capacity and capability and thus “spoiler potential.” At the same time, however, its policy preferences converged upon the norms and practices established by the United States and the European Union, albeit with some distinct elements. Under these conditions, we expect a transition from rule-taker to rule-promoter. We find that South Korea has indeed in recent years begun to actively promote well-established competition law and policy norms and practices – supplemented by its distinct elements – through technical assistance programs, as well as various bilateral channels and multilateral institutions. The findings suggest that the power transition theory of global economic governance is usefully applicable to middle powers, too.  相似文献   
930.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号