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   950篇
  免费   45篇
  2024年   2篇
  2023年   14篇
  2022年   21篇
  2021年   17篇
  2020年   53篇
  2019年   32篇
  2018年   49篇
  2017年   40篇
  2016年   43篇
  2015年   37篇
  2014年   26篇
  2013年   102篇
  2012年   54篇
  2011年   37篇
  2010年   50篇
  2009年   44篇
  2008年   46篇
  2007年   51篇
  2006年   50篇
  2005年   54篇
  2004年   42篇
  2003年   32篇
  2002年   25篇
  2001年   27篇
  2000年   18篇
  1999年   6篇
  1997年   10篇
  1996年   2篇
  1995年   2篇
  1994年   5篇
  1992年   1篇
  1989年   1篇
  1983年   2篇
排序方式: 共有995条查询结果,搜索用时 15 毫秒
81.
Bison bison mandibular molars from the Late Plains Archaic kill/butchery sites of Buffalo Creek (Wyoming) and Kaplan-Hoover (Colorado) exhibit significant frequencies of dental enamel hypoplasia (DEH), a defect believed to reflect information about physiological status of individual animals. This study provides a methodology to estimate the ontogenetic and seasonal timing of DEH formation in bison dentition. Integration of these estimates with data from bison life history and grassland ecology allows inferences on age- and season-specific factors exacerbating periodic physiological declines that were recorded in the form of enamel hypoplasias. Differences between assemblages indicate regional variability in grassland conditions, with data from Buffalo Creek pointing to recurrent drought that reduced forage capacity and contributed to physiological stress in bison over two consecutive years. Seasons of physiological stress reflected in the DEH correspond to each of the three kill events at the locality, suggesting that predictability of bison behavior in this location was a critical factor in influencing the seasonal timing and location of repeated hunting episodes. Unlike Buffalo Creek, timings of stress episodes are not consistent with season of death in the Kaplan-Hoover bison assemblage, suggesting that favorable grassland conditions were the primary factor influencing timing of this large single-kill event in order to provision for the upcoming winter. DEH analysis represents a developing approach in the construction of models addressing key aspects of local grassland and bison ecology as well as offers unique insights into the hunting strategies and subsistence decisions of Late Plains Archaic foragers.  相似文献   
82.
从史学的视角为切入点,通过史料、方法、理论三个层面对马新中文源流“华人学”主体性建构可能性的探讨,得出结论,由于在研究方法和理论上的严重不足和匮乏,马新“华人学”的未来,只有在史料的发掘和解读的基础上,方能进一步发展自身的方法和理论。  相似文献   
83.
《如梦录》是一部记载明代后期开封城市状况的笔记体方志性著作,以其记载翔实、内容丰富而具有重要的史料价值。对该书的作者、版本进行考证和论述,对其主要内容及其史料价值作比较详细的介绍和分析,具有一定的学术意义。  相似文献   
84.
时间连接成分反映了篇章中相关事件的时间先后关系,是篇章组织中时间顺序义的显性表达法。本文从历时的角度考察了时间连接成分产生和发展的轨迹,归纳出时间连接成分产生的六种方式,同时对时间连接成分的隐喻基础作了简单的探讨。  相似文献   
85.
Majority of contemporary Chinese historians have been employing a conceptual framework focusing on the difficulty of capitalistic development in China to analyze the historical trend and potentials of late imperial China. This approach based upon the presupposition of viewing the pattern of Chinese history as abnormal reflects with the remaining influence of the Western-centric methodology. Further, based upon a “normal” point of view, seven fundamental, irreversible, and systematical changes to the Ming society could be identified. By conclusion, China in the Ming period was transforming into an imperial agric-mercantile society. This process proves that late imperial China was not stagnate society without “history,” meanwhile, its pattern of development was clearly not identical to the Western style modernization progress. __________ Translated by Chen Cheng from Dongbei Shida Xuebao 东北师大学报(Journal of Northeast Normal University), 2007, (1): 5–13  相似文献   
86.
From the perspective of historical anthropology, this article examines a great deal of the biographies of religious figures in Tibetan history, reveals their special way of writing, classification, and circulation. In Tibetan Buddhism, biographies of religious figures are considered as a subject’s demise (lung-rgyun) and have their special meanings. They are the text of the largest quantity in the historical works of Tibet and had great influence on Tibetan historiography. A comprehensive research on their cultural characteristic, historical evolvement and historical influence will help us understand the Tibetan culture in depth. __________ Translated from Shixueshi Yanjiu 史学史研究 (Journal of Historiography), 2007, (4): 67–77  相似文献   
87.
本文论述了历史文化遗产科学数据共享管理的必要性,系统地分析了我国历史文化遗产科学数据共享存在的问题及其制约因素,就做好历史文化遗产科学数据共享管理提出了转变观念、健全法律法规、建立规范标准体系和构建服务体系的建议。  相似文献   
88.
Excavations at the site of Bosutswe on the eastern edge of the Kalahari Desert in Botswana have uncovered over 4 m of deposit ranging in age from CE 700 to 1700. Our research has produced quantitative and qualitative measures of the material and ecological dimensions that structured the everyday actions and behaviors through which social identities were constituted, maintained, and transformed during the period when the polities of Toutswe, Mapungubwe, Great Zimbabwe and Khami rose to power. By examining the material dimensions that underlay shifting relations of production, exchange, and social stratification we are able to contextualize the social judgments that ascribed value to material goods and food ways, while specifying the ways these were used to create and naturalize social relationships and power differentials. Stable isotope analyses, combined with evidence of vitrified dung, further enable us to suggest changes in herd management strategies used by the inhabitants of the site to compensate for ecological changes brought about by long-term occupation, while at the same time enabling them to economically tie subordinates to them as social divisions became more rigidly defined after CE 1300. The cultural and economic changes that took place at Bosutswe thus directly impact our understanding of the social transformations that immediately preceded contemporary configurations of ethnicity in Botswana.  相似文献   
89.
侯云灏 《史学月刊》2002,4(6):5-13,41
面对改革开放的新形势,受“左”倾思潮影响的教条主义史学面临来自多方面的挑战,史学危机的呼声不绝于耳,西方各种史学思潮纷至沓来。史学工作者本着解放思想、实事求是的原则,结合实际,重新学习,调整步伐,注重历史学的学科特性,与时俱进,使马克思主义史学获得了新的生机。  相似文献   
90.
New Tremadocian ostracod material from the Alborz Mountains of Iran confirms the early and widespread occurrence of the Ordovician genus Nanopsis, and the apparently simultaneous first appearance of ostracods in the fossil record at the level of the P. deltifer conodont biozone (485.5 Ma) from China to Argentina. Nanopsis pairidaeza sp. nov. adds to the pool of species diversity for the Early Ordovician, though documented Tremadocian ostracod generic diversity remains low, with only four genera. The presence of Early Ordovician ostracods in Alborz, their occurrence elsewhere in palaeocontinental Gondwana, Baltica and China coupled to their marked absence from the Tremadocian of Laurentia and Siberia, supports the notion of the earliest occurrence of ostracods centred on Gondwana/Baltica.  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