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   3441篇
  免费   73篇
各国政治   186篇
工人农民   80篇
世界政治   218篇
外交国际关系   151篇
法律   2287篇
中国政治   29篇
政治理论   525篇
综合类   38篇
  2020年   33篇
  2019年   26篇
  2018年   31篇
  2017年   55篇
  2016年   65篇
  2015年   39篇
  2014年   50篇
  2013年   325篇
  2012年   76篇
  2011年   97篇
  2010年   55篇
  2009年   56篇
  2008年   82篇
  2007年   97篇
  2006年   107篇
  2005年   113篇
  2004年   111篇
  2003年   113篇
  2002年   103篇
  2001年   168篇
  2000年   140篇
  1999年   97篇
  1998年   38篇
  1997年   36篇
  1996年   33篇
  1995年   30篇
  1994年   33篇
  1993年   35篇
  1992年   74篇
  1991年   79篇
  1990年   70篇
  1989年   93篇
  1988年   93篇
  1987年   82篇
  1986年   93篇
  1985年   72篇
  1984年   42篇
  1983年   51篇
  1982年   26篇
  1981年   38篇
  1979年   35篇
  1978年   27篇
  1977年   32篇
  1975年   37篇
  1974年   36篇
  1973年   33篇
  1972年   33篇
  1971年   28篇
  1969年   27篇
  1968年   23篇
排序方式: 共有3514条查询结果,搜索用时 31 毫秒
151.
Six ninhydrin analogues containing oxygen, sulfur, and selenium substituents at the C-5 position, 5-(4-nitrophenyl)ninhydrin, and benzo[f]furoninhydrin were evaluated as fingerprint development reagents. The analogues all showed good fingerprint color development but were not superior to ninhydrin in this respect. The benzo[f]furoninhydrin complex was strongly luminescent at room temperature following zinc complexation, while the remaining analogues required cooling to -196 degrees C to produce optimum luminescence. The benzo[f]furo, nitrophenyl, and methyl selenide analogues showed the best potential as fingerprint reagents with the benzo[f]furo analogue comparing favorably with DFO.  相似文献   
152.
Eleven cases with migration (escape) of catheters, inserted into subclavian veins, into the vascular bed, are analyzed by the results of forensic medical evaluations. Expert evaluation of aftereffects of the complications caused by flaws in medical care is made. Suggestions are made on evaluation of the severity of harm inflicted to health in such cases and the criteria of such evaluations are offered.  相似文献   
153.
Conclusions of 41 repeated expert evaluations of craniocerebral injuries within the framework of criminal and civil cases investigation are analyzed. Some aspects of clinical and forensic medical diagnosis of lethal and nonlethal injuries to the head, evaluation of the quality of medical care, and qualification of the severity of harm to health are discussed. Causes of typical expert errors and approaches to their prevention are shown.  相似文献   
154.
The article presents the results of an examination of the dry residue of liquor crystallograms (DRLC) using infrared spectroscopy technique. 36 spectrograms were studied. Elements of similarity and difference were revealed in the spectrograms of organic substance (antifreeze, sodium cyclamate and fatty tissue), of DRLC of the crystal-forming matter CuCl(2)x2H(2)0, of DRLC of a live person and cadaveric liquor (with no brain injury in respective case histories), of DRLC of liquor of live persons with a brain injury, of DRLC of liquor of persons who died of a brain injury and of persons who died of other causes.  相似文献   
155.
103 studies of torn aneurysms in the cerebral vessels are described. Localizations, morphological peculiarities of aneurysms as well as the nature of intracranial hemorrhages caused by torn aneurysms are presented. The authors have a critical attitude to the "acquired" theory of aneurysm development.  相似文献   
156.
157.
158.
Since about 2000, Russia became increasingly interested in a swift expansion of its oil and gas industry to the eastern regions, aiming primarily at the domestic development needs and new markets of Northeast Asia. Eastern Siberia and the Far Eastern areas contain up to 50 percent of Russia's estimated oil reserves. In this context, the Eastern Siberia–Pacific Ocean oil pipeline is attracting attention as a mega-project important not only for Russia, but also for its neighbors. This pipeline will facilitate the development of new oil fields in the remote eastern areas. There are also plans to build oil refineries connected to the pipeline, including the one planned on the Pacific coast. Indeed, Russia needs an access to the neighboring markets not only in the field of oil, but also natural gas and electricity. In this regard, long-term shared interests should drive new energy projects, and governments could greatly facilitate business interaction. Moreover, specific measures dealing with the long-term energy policies are required at the national, bilateral and regional levels, including practical and project specific initiatives tailored to the needs of the economies of Northeast Asia, considering their large markets, geography, technological potential and an interest in building institutions.  相似文献   
159.
Increasingly, public administration in the United States operates in a densely interconnected international system in which local decisions and actions may trigger global repercussions—and vice versa—and the fate of communities in one region is bound to the choices of decision makers elsewhere. Administrative actors have become enmeshed in a complicated, interwoven pattern of governance in ways that shape actions, issues, and opportunities for influencing administrative agencies at national, state, and local levels. These developments call for a critical reappraisal of our inherited notions of governance, management, and accountability. Terrorist tragedy and responses to it call attention to these themes, but they apply broadly across the spectrum of governance challenges. To demonstrate this point, we analyze some implications of transnational governance for the institutions and practices of U.S. public management, with particular attention to another subject: environmental policy and management. A conclusion is that the public administration community must adjust traditional practices to facilitate the effective management of the global processes that, in turn, reshape the world.  相似文献   
160.
McDowell  Bruce D. 《Publius》1997,27(2):111-127
On 30 September 1996 the U.S. Advisory Commission on IntergovernmentalRelations (ACIR) closed its doors, ending thirty-seven yearsof advocacy for federalism and intergovernmental relations.A majority of members in the Congress felt that A CIR had becomeirrelevant to the issues facing them and agreed that littlewould be lost by terminating the commission. The Clinton administration,although supportive until near the end, withdrew its'supportout of displeasure with the commission's handling of the unfundedfederal mandates issue. The national associations representingstate and local governments were ambivalent. ACIR was no longerlooked to for solutions to the nation's intergovernmental relationsproblems. With the exit of ACIR, the federal government's lastresource for addressing broad intergovernmental issues—beyondthe confines of individual programs—is gone.  相似文献   
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