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   261篇
  免费   4篇
  2022年   2篇
  2021年   1篇
  2020年   2篇
  2019年   3篇
  2018年   4篇
  2017年   5篇
  2016年   6篇
  2015年   8篇
  2014年   6篇
  2013年   72篇
  2012年   10篇
  2011年   20篇
  2010年   12篇
  2009年   10篇
  2008年   10篇
  2007年   11篇
  2006年   7篇
  2005年   4篇
  2004年   2篇
  2003年   1篇
  2001年   4篇
  2000年   1篇
  1999年   5篇
  1998年   2篇
  1997年   2篇
  1996年   2篇
  1995年   1篇
  1994年   2篇
  1993年   1篇
  1992年   2篇
  1991年   2篇
  1990年   1篇
  1989年   1篇
  1988年   2篇
  1986年   3篇
  1985年   1篇
  1983年   2篇
  1982年   1篇
  1981年   3篇
  1980年   6篇
  1979年   1篇
  1978年   4篇
  1977年   5篇
  1976年   1篇
  1975年   2篇
  1974年   2篇
  1972年   1篇
  1971年   3篇
  1970年   4篇
  1968年   1篇
排序方式: 共有265条查询结果,搜索用时 15 毫秒
21.
The promotion of the German language abroad and of German Studies plays a central role in German Foreign Cultural Policy. With regard to Sub-Saharan Africa, otherwise a peripheral region for foreign policy, German as foreign language is firmly established as second language after English. Learners especially in Francophone West and Central Africa have increased over the past decade. Numerous funding programmes and actions are supported by German nongovernmental organizations at college/university levels. But bilateral cooperation between German and African academic institutions are challenged both by negative perceptions of the ‘Global South’ among Western colleagues and by an infrastructure adverse to research and to career development in most African countries. Additionally, North/South relations are traditionally seen in terms of (under-)development by German institutions, effecting cooperation. The paper develops a differentiated picture of African Studies in Africa, and outlines benefits that can be attained through collaboration ‘at eye-level’.  相似文献   
22.
In this paper I examine the profit-maximizing locations of entrants. Suppose that firms practice spatial price discrimination and consumer locations are discrete, such as five equally spaced towns on a roadway. With completely inelastic consumer demand an entrant between two existing firms is often indifferent between the symmetric (central) location and a continuum of asymmetric (noncentral) locations. However, downward-sloping consumer demand often causes the entrant to strictly prefer either of two asymmetric locations to any other location. These results are very different from those found in mill-pricing (free-on-board or f.o.b.-pricing) models.  相似文献   
23.
This study investigates the roles played by the barbarian general Sigisvult and the Arian bishop Maximinus in western imperial politics during the reign of Valentinian III. In c. 426/7 Sigisvult was sent to North Africa to subdue the rebel Count Boniface. He was accompanied by Maximinus, who, in the course of the campaign, engaged in a celebrated debate with Augustine. Maximinus helped achieve a non-violent settlement that returned Boniface and his German troops to the imperial fold. Sigisvult then returned to Italy and was appointed Patrician and Master of Soldiers after the assassination of Felix in 430. In 435, however, this position was transferred to Fl. Aëtius, who spent most of his time campaigning in Gaul. In 440, the Vandals attacked Sicily, and Sigisvult was placed in charge of the defence of the Italian coast. At the same time, an Arian bishop Maximinus, apparently the one who had debated with Augustine, was in contact with the Vandals. He may have planted disinformation that Sebastianus, the son of the now-deceased Boniface, was about to invade Africa. This resulted in a Vandal withdrawal, and both Italy and Sicily were saved. Sigisvult last appears in the mid-440s, and his subsequent demise, perhaps in the early 450s, may have resulted in the breakdown of a precarious balance of power and the murders of Aëtius and Valentinian in 454 and 455, which hastened the demise of the Western Roman Empire. In an appendix it is suggested that although Boniface called in Vandal auxiliaries in 427, he was not responsible for the Vandal crossing in 429.  相似文献   
24.
25.
26.
27.
In May 2003 the author observed a clench-fastened boat near Chertala, Kerala, India. The boat appears to indicate a vessel-type previously undocumented in the area. This article reports the observations made of the vessel and its pertinence to the boat-construction traditions of Kerala and the subcontinent.
© 2009 The Author  相似文献   
28.
29.
30.
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