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   462篇
  免费   18篇
各国政治   22篇
工人农民   20篇
世界政治   40篇
外交国际关系   26篇
法律   270篇
中国政治   7篇
政治理论   93篇
综合类   2篇
  2023年   3篇
  2022年   5篇
  2021年   9篇
  2020年   15篇
  2019年   10篇
  2018年   18篇
  2017年   17篇
  2016年   12篇
  2015年   15篇
  2014年   13篇
  2013年   58篇
  2012年   19篇
  2011年   11篇
  2010年   13篇
  2009年   4篇
  2008年   20篇
  2007年   22篇
  2006年   16篇
  2005年   10篇
  2004年   13篇
  2003年   21篇
  2002年   20篇
  2001年   25篇
  2000年   18篇
  1999年   11篇
  1998年   8篇
  1997年   6篇
  1996年   4篇
  1995年   2篇
  1994年   2篇
  1993年   2篇
  1992年   3篇
  1991年   5篇
  1990年   4篇
  1989年   9篇
  1988年   2篇
  1987年   3篇
  1986年   3篇
  1985年   6篇
  1983年   2篇
  1982年   3篇
  1980年   1篇
  1979年   6篇
  1976年   1篇
  1975年   1篇
  1974年   2篇
  1973年   2篇
  1972年   1篇
  1970年   2篇
  1969年   1篇
排序方式: 共有480条查询结果,搜索用时 0 毫秒
341.
From 2008 to the end of 2009 the Joint Poison Information Center (PIC) in Erfurt observed 7 incidents involving 17 persons (1 fatality) with signs of carbon monoxide poisoning from indoor barbecues (COFIB). To find out whether COFIB is a regional or a general phenomenon in Germany, Austria and Switzerland, all information about COFIBs recorded by the 11 German-speaking Poison Information Centers and the BfR Berlin were retrospectively analyzed for the period 2000 to 2009. In all, 60 COFIBs (accidental: 90.0 %, suicidal: 8.3%, reason unknown: 1.7%) involving 146 individuals were reported. The number of incidents increased from one case with 2 persons in 2000 to 18 cases involving 34 persons in 2009. The 146 victims (female 26.7%, male 27.4%, gender unknown 45.9%; adults 58.2%, children 24.7%, age unknown 17.1%) lived in 15 of the 16 federal states of Germany and in Switzerland. The highest number of victims was found in Bavaria (23), Brandenburg (18), and Baden-Wuerttemberg (18). The symptoms according to the Poisoning Severity Score were none to mild in 60.3%, moderate in 13.7%, severe in 11.6%, fatal in 6.9% and unratable in 7.5%. No clear correlation was found between the carboxyhemoglobin concentration and the severity of the symptoms. As a rising number of COFIBs often involving several individuals was observed from 2000 to 2009, the general public was informed about the risks of indoor barbecues.  相似文献   
342.
Primary breast lymphoma is a rare form of extranodal lymphoma. B cells constitute the most common type involving the breast. T cells represents only 3%. Even though lymphomas have a high predilection to metastasize to the heart, there are no specific clinical or radiological findings, and most of the cases are diagnosed at autopsy. We discuss the case of a 49-year-old woman with primary breast lymphoma who presented with sudden death. Autopsy revealed a primary T-cell lymphoma of the breast with tumoral infiltration of the atrioventricular node and transmural myocardial permeation with focal necrosis.  相似文献   
343.
344.
The recent literature on inter‐industrial wage differentials for the United States suggests that the labour market equilibrium features non‐competitive elements. However, the lessons from the United States need not carry over to other countries, especially developing economies. This article analyses the wage differentials in selected Latin American countries. Despite the sharp contrasts between the Latin American and the US economies, our results show more similarities than differences with those reported in past studies. Wage differentials are substantial and persist over time; the differentials are also correlated across occupations and, to a lesser extent, across establishment sizes.  相似文献   
345.
This article examines intra‐industry spillovers from FDI in Uruguayan manufacturing plants in 1988, to determine whether differences in the technology gap between locally‐owned plants and foreign affiliates have any impact on the relation between local productivity and foreign presence. We find a positive and statistically significant spillover effect only in a sub‐sample of locally‐owned plants with moderate technology gaps vis‐à‐vis foreign firms. Our interpretation is that there are firm‐specific differences in the ability to absorb spillovers, and that these may explain some of the contradictory findings of earlier spillover studies.  相似文献   
346.
Hart’s criticism of Devlin’s stance on the legal enforcement of morality has been highly influential in shaping a new liberal sensibility and in paving the way to many important legal reforms in the UK. After 50 years it is perhaps time to go back to Law, Liberty and Morality to see it in the perspective of the general evolution of Hart’s thought since the early 50s. This is a period of extraordinary creativity for the Oxford philosopher, in which he writes many important contributions to legal, moral and political philosophy. Prominent among these is ‘Are There Any Natural Rights?’, an article that sets the agenda for Hart’s subsequent work on liberty, fairness and rights, and provides the philosophical background for the liberal understanding of the relations between law and morality defended in Law, Liberty and Morality.  相似文献   
347.
Mario Ferrero 《Public Choice》2013,156(3-4):723-750
This paper models theocracy as a regime where the clergy in power retains knowledge of the cost of political production but which is potentially incompetent, quarrelsome, or corrupt. This is contrasted with a secular regime where government is contracted out to a secular ruler, and hence the church loses the possibility of observing costs and creates for itself a hidden-information agency problem. The church is free to choose between regimes—a make-or-buy choice—and we look for the range of environmental parameters that are most conducive to the superiority of theocracy and therefore to its occurrence and persistence, despite its disabilities. Numerical solution of the model indicates that the optimal environment for a theocracy is one in which the “bad” (high-cost) state is disastrously bad but the probability of its occurrence is not very high. Quantitative evidence on the rise of ancient Israelite theocracy and the current surge of Islamic theocratic fundamentalism provides surprisingly strong support for this prediction. Lastly, supportive evidence is suggested by two rare instances of a theocracy’s peaceful demise.  相似文献   
348.
The purpose of the article is to review four major social science research projects currently under way in the Nordic countries, and to discuss the preconditions for, and the significance of, the manner in which the projects are organised. Four models for organising social science research are outlined, and applied to the projects. The main conclusion of the study, albeit of a tentative nature, is that whether a research project is organised according to one or other model is dependent upon the infrastructure of social science research, and the organisation of the wider society in the country concerned.  相似文献   
349.
A 53-year-old male was found dead in his home. The deceased's head, almost totally skeletonized, was lying at a distance of about 150 cm from the thorax inlet. The other occupant of the flat was a mongrel sheepdog. The autopsy conducted for the inquest established extensive damage to soft tissue in the head, neck and chest. The second to sixth cervical vertebrae were missing. The seventh cervical vertebra and the right first rib displayed bone lesions. The tissue injuries were attributed in the diagnosis to post-mortem canine gnawing. Cause of death was given as intermittent haemorrhaging of the gastro-intestinal tract from oesophageal varices in a status of hepatic cirrhosis. There was no indication that death had been caused by another party. About two days were estimated to have elapsed since death. Attention is drawn to this doubtless rare instance of total decapitation of the deceased with displacement of the head caused by a dog during the early post-mortem period.  相似文献   
350.
Legal context and key points. The particular geographical structureof Italy has favoured the development of parallel cultures thatin the past competed not only with spears and arrows, but alsowith works of art -hence, the particular sensitivity of theItalians for design. The Community regime of design is highly unsatisfactory, andthe "individual character" required for protection is an evanescentconcept. "Design approach" is a sexy expression, but devoidof practical significance. The risk is therefore of excessiveprotection, of the hugely and non-distinctive.This is not welcomedby the Italians and may also damage the development of design. Practical significance. An independent (non-judicial) body hasbeen created in Italy, to adjudge (or rather, advise) when awork of design deserves protection. It is suggested that a similarindependent body be created on a European scale (and perhapsthis Journal may function as a catalyst for this endeavour).  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