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   322篇
  免费   19篇
  2024年   2篇
  2023年   8篇
  2022年   2篇
  2021年   1篇
  2020年   12篇
  2019年   16篇
  2018年   33篇
  2017年   36篇
  2016年   28篇
  2015年   13篇
  2014年   20篇
  2013年   85篇
  2012年   6篇
  2011年   5篇
  2010年   11篇
  2009年   9篇
  2008年   9篇
  2007年   4篇
  2006年   2篇
  2005年   1篇
  2004年   1篇
  2001年   2篇
  2000年   2篇
  1999年   1篇
  1998年   6篇
  1997年   1篇
  1996年   4篇
  1995年   3篇
  1993年   2篇
  1992年   2篇
  1990年   1篇
  1989年   1篇
  1988年   1篇
  1987年   3篇
  1986年   1篇
  1985年   1篇
  1982年   1篇
  1981年   1篇
  1979年   1篇
  1978年   1篇
  1977年   1篇
  1957年   1篇
排序方式: 共有341条查询结果,搜索用时 15 毫秒
101.
The discovery of a Neolithic Alpine jade axehead in Aroche, in the southwest of Spain, revives the question of long-distance exchange between the Iberian Peninsula and the rest of Europe. This polished blade belongs to a typological model quite characteristic of Alpine production during the second half of the 5th millennium B.C. Different mineralogical approaches (macroscopic features examination, specific gravity, direct XRD, non-destructive μXRF spectroscopy, optical stereomicroscopy, magnetic susceptibility determination and microprobe analysis) have identified the rock as an omphacitic jadeitite (mixed jade) with some tiny garnets and a weak retromorphosis. This analysis and the comparison of the rock structure with the referential JADE of Alpine natural jade samples, as well as the extraction modalities and shaping of the axe, provide strong arguments to assign the Aroche axe to a production of Mont Viso: the origin of thousands of axes that circulated in Europe between Ireland and Sicily. The Aroche axe, discovered not far from the variscite mines of Encinasola, could be considered as part of a possible exchange system between the Iberian Peninsula and the Gulf of Morbihan, in Brittany.  相似文献   
102.
Metals from a votive deposit at Moita da Ladra (Tagus Estuary) dating to the eighth century bc were studied by micro‐EDXRF, optical microscopy and Vickers testing to investigate the adoption of Phoenician innovations by indigenous communities. Artefacts are made of bronze alloys with suitable tin contents (11.6 ± 2.3 wt%) and very low iron impurities (<0.05 wt%), and were often manufactured using the long post‐casting sequence. Comparisons with indigenous and Phoenician metallurgies from western Iberia revealed a conservative technology suggesting that the spread of Phoenician innovations was very slow. In this region, the adoption of a diversified copper‐based metallurgy and reduction furnaces only seems to occur during the Post‐Orientalizing Period, c. sixth to fourth centuries bc .  相似文献   
103.
104.
Zhang, Q., Nel, A., Azar, D. & Wang, B. April 2016. New Chinese psocids from Eocene Fushun amber (Insecta: Psocodea). Alcheringa 40, xxx–xxx. ISSN 0311-5518

Two new Psocodea, Sinopsyllipsocus fushunensis gen. et sp. nov. and Eotriplocania sinica gen. et sp. nov., are described from Eocene amber of Fushun City, China. They are distinctly different from all known Psocodea from Fushun amber in their three-segmented tarsi. Sinopsyllipsocus fushunensis is the second unequivocal fossil of Psyllipsocidae. Eotriplocania sinica is the first Asiatic and oldest representative of the Neotropical family Ptiloneuridae, and reveals a formerly global distribution of the family. The discovery of these two families in Eocene Fushun amber suggests a rather warm palaeoclimate for the Fushun amber locality.

Qingqing Zhang [] and Bo Wang* [], State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, PR China; Qingqing Zhang also affiliated with University of the Chinese Academy of Sciences, Beijing 100049, PR China; André Nel [], Institut de Systématique, Évolution, Biodiversité, ISYEB—UMR 7205—CNRS, MNHN, UPMC, EPHE, Muséum national d’Histoire naturelle, Sorbonne Universités, 57 rue Cuvier, CP 50, Entomologie, F-75005, Paris, France; Dany Azar [], Lebanese University, Faculty of Sciences II, Department of Natural Sciences, Fanar, Fanar—Matn—PO Box 26110217, Lebanon. *Also affiliated with: Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Science, Beijing 100101, PR China.  相似文献   

105.
106.
107.
Gershom Scholem wrote his famous article, “Redemption through sin”, in 1937, and J.L. Talmon gained the inspiration for his first book, The Origins of Totalitarian Democracy, in the years 1937–1938 at the time when the Moscow trials revealed to the world the bitter reality of what was happening in the Soviet Union. Scholem and Talmon were contemporaries and witnesses of the transformation of communism in the Soviet Union from a vision of egalitarian and universal redemption into a bureaucratic and nationalistic despotism. The major scholar of the history of religious Messianism and the major scholar of the history of secular Messianism both widened the scope of their investigations—the first extending them into the history of Sabbataianism and the second into the French Revolution—and both reached a similar conclusion: both recognized, as Scholem put it, “the profound truth relating to the dialectics of history … of the historical process whereby the fulfilment of one political process leads to the manifestation of its opposite. In the realization of one thing its opposite is revealed”. The two great Israeli historians of ideas plumbed the depths of one of the most fascinating and at the same time tragic manifestations of la condition humaine: the human challenge of bringing the heavenly city down to the vale of tears, and the price that men have to pay for their Messianic passion.  相似文献   
108.
In 1842, the Parisian editor Louis-Antoine Pagnerre published the Dictionnaire politique. This large volume was the manifesto of the French Republicans in opposition to the conservative governments of King Louis-Philippe under the July Monarchy. One of the most original aspects of the Dictionnaire resides in the attempt to link the doctrine of republicanism to political economy. It is the purpose of this paper to analyse the republican political economy presented in Pagnerre's dictionary. First, we detail the historical context in which it appeared, stressing on Pagnerre's biography and on the composition of the group of young republicans who wrote the main economic entries of the book. Second, we focus on the economic ideas about the political regulation of industrial phenomena and the solutions these Republicans imagined to solve the social question. Third, we conclude by attempting to summarize the main characteristics of this republican political economy and to appreciate its originality.  相似文献   
109.
110.
In 2009, an archaeological intervention in the Valle da Gafaria (Lagos, Portugal) allowed the excavation of part of a leprosarium and an associated necropolis (15th–17th centuries). The individuals recovered were buried directly in the soil, in positions and orientations discordant to the prevailing Christian rules. The sample is made up of eleven adult individuals of both sexes.  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