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   13701篇
  免费   131篇
各国政治   425篇
工人农民   1249篇
世界政治   624篇
外交国际关系   481篇
法律   8094篇
中国政治   49篇
政治理论   2893篇
综合类   17篇
  2021年   40篇
  2020年   70篇
  2019年   103篇
  2018年   1369篇
  2017年   1295篇
  2016年   1107篇
  2015年   122篇
  2014年   130篇
  2013年   593篇
  2012年   320篇
  2011年   1038篇
  2010年   1107篇
  2009年   697篇
  2008年   874篇
  2007年   816篇
  2006年   141篇
  2005年   186篇
  2004年   320篇
  2003年   258篇
  2002年   126篇
  2001年   311篇
  2000年   281篇
  1999年   193篇
  1998年   88篇
  1997年   90篇
  1996年   71篇
  1995年   82篇
  1994年   70篇
  1993年   39篇
  1992年   121篇
  1991年   139篇
  1990年   131篇
  1989年   126篇
  1988年   113篇
  1987年   125篇
  1986年   100篇
  1985年   95篇
  1984年   105篇
  1983年   90篇
  1982年   62篇
  1981年   73篇
  1980年   34篇
  1979年   78篇
  1978年   50篇
  1977年   34篇
  1975年   37篇
  1974年   49篇
  1973年   54篇
  1972年   39篇
  1971年   34篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
51.
A simple and sensitive method is described for quantitative analysis of chlorpromazine in blood, serum, urine and tissue homogenate. The chlorpromazine cation radical produced by adding perchloric acid and 2,3-dichloro-5,6-dicyano-p-benzoquinone to the sample can be detected by the ESR method at room temperature. The sensitivity limit is 10 ng, that is, 20 μl of the solution containing 0.5 μg chlorpromazine/ml. The time needed for the measurement is within 10 min. The chlorpromazine radical thus produced is very stable; for example, 95% of the radical was observed after 24 h. The advantage of this method is discussed by comparing with the ordinary spectrophotometry which requires the purification of the sample.  相似文献   
52.
To demonstrate that norms have independent causal power, constructivists de-emphasise material factors related to state interests and highlight social factors. Similarly, they conceptualise international organisations as autonomous from state influence, and focus on cases featuring non-state actors that stimulate a “tipping point” of norm diffusion among states in advance of state sponsorship. By contrast, this article utilises an historical materialist approach that admits both social and material data to examine the contrasting case of population control. It finds that US corporate foundations, eugenist demographers, feminist birth control activists and related NGOs conceptualised and promoted population control in the United States, at the United Nations, and across developing countries. However, the tipping point of norm diffusion occurred only after the United States publicly advocated population control. Indeed, material and social factors were inextricably bound together.  相似文献   
53.
54.
This article focuses on media reportage of offensive juveniles, past and present, to elicit lessons that the twenty-first century can learn from the Victorian past in terms of diversionary responses. How to prevent vulnerable juveniles sliding into dangerous criminality is a continuing preoccupation: the issue explored in this article relates to the creation of the identity of the criminal juvenile. In utilising the concept of semi-criminality to label certain types of juvenile anti-social behaviour the Victorians avoided actual criminalisation of socially offensive but, in legal terms, minor behaviours. The reasons for and negative consequences of the abandonment of this concept by the modern age are explored, including the reconceptualisation of where responsibility for juvenile offending lies in the modern era.  相似文献   
55.
This article revisits the Baroda Incident 1875, providing a detailed examination of the Enquiry or ‹trial’ for the first time, and locating that examination in the wider socio-cultural context of the nineteenth century British Empire (especially the Raj) and the exporting of the ‹British’/English legal culture to the Empire. The implications of the establishing of British principles of justice, including the value placed upon Indian-generated evidence and testimony by the courts, are explored, in order to establish the Baroda Incident as a significant miscarriage of justice. Using historical methodologies as well as postcolonial insights, it demonstrates that the concepts of justice on which the British prided themselves were intrinsincally racialised as well as gendered, with profound modern resonances. Dr. Judith Rowbotham is a Reader, School of Arts and Humanities, Nottingham Trent University.  相似文献   
56.
Aggressive pursuit of free trade agreements (FTAs) and customs unions (CUs) by major and minor trading powers alike challenges the conventional wisdom in favor of such pursuit – competitive liberalization. An equally plausible explanation for an active bilateral and regional trade agreement policy, one which effectively de-emphasizes multilateralism, may be competitive imperialism. The protection and enforcement of intellectual property rights is one area in which new provisions, going beyond multilateral rules, are being negotiated and written into FTAs and CUs. Such provisions may yield insights into which characterization of bilateralism and regionalism – competitive liberalization or competitive imperialism – is more apt. Rice Distinguished Professor, The University of Kansas, School of Law, Green Hall, 1535 West 15th Street, Lawrence, KS 66045-7577, USA. Tel. +1-785-8649224. Fax. +1-785-8645054. www.law.ku.edu. J.D., Harvard (1989); M.Sc., Oxford (1986); M.Sc., London School of Economics (1985); A.B., Duke (1984). Marshall Scholar (1984-86). Member, Council on Foreign Relations, Royal Society for Asian Affairs, and Fellowship of Catholic Scholars. Author, Modern GATT Law (Sweet & Maxwell 2005), International Trade Law: Theory and Practice (2nd ed. 2000, 3rd ed. forthcoming 2007-08), and Trade, Development, and Social Justice (Carolina Academic Press 2003). I am thankful to my Research Assistant, Mr. David R. Jackson (B.A., George Mason University, 1992; J.D. Class of 2007, University of Kansas), for his indispensable help on this work. I also am grateful to Dr. Mohammed El Said, University of Central Lancashire (UCLAN), for his consistent support and friendship, and for what he has taught and continues to teach me about international trade and intellectual property.  相似文献   
57.
Esophageal and tracheal fistulas, which occur in 0.05% of medicolegal autopsies, were demonstrated in three cases by a postmortem radiographic technique using silicone rubber/lead oxide as a contrasting medium that vulcanizes at room temperature. In one 83-year-old male, a tracheoesophageal fistula was detected, which had developed after surgical repair of an esophageal rupture caused by a flexible fiberoptic endoscope. In a second case, carcinoma of the esophagus in a 78-year-old male had eroded the trachea and arcus of the aorta creating a fatal tracheoesophagoaortic fistula. In a third case, 55-year-old female developed a tracheobrachicephalic artery fistula as a result of an infiltrating cystic adenocarcinoma of the trachea, resulting in a fatal hemorrhage into the trachea. The results of this study indicate that diagnostic radiologic methods using a vulcanized contrasting medium are useful in supplementing normal dissection in autopsy cases with suspected fistulas of the esophagus or trachea.  相似文献   
58.
We investigated the differences in the levels of carboxyhemoglobin (COHb), cyanide (HCN) and petroleum fuels (gasoline and kerosene) between left and right ventricular bloods from fire victims. COHb was slightly, and HCN and petroleum fuels were markedly higher levels in the left than those in the right. These effects were so called 'first pass phenomena' due to the circulation, diffusion and metabolization before the deaths of fire victims.  相似文献   
59.
60.
Attributions of blame for the first and latest episodes of violence were assessed in a sample of 139 couples who were referred to a mandatory domestic violence treatment program in the military. Use of a methodology which allows for reports of nonmutually exclusive categories of attribution from both members of the dyad revealed more complex patterns of attributions than reflected in the existing literature. In addition, there were low rates of agreement within couples as to who was to blame for the violence. Although both men and women exhibited a high frequency of blaming their partner for both episodes of violence, men were significantly more likely to blame themselves for the latest than for the first episode. Attributions of blame were related to contextual variables in both men and women. Sex specific relationships emerged. These results were discussed with specific reference to predictions derived from attribution theory and their clinical implications.  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