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   2106篇
  免费   96篇
  2022年   9篇
  2020年   40篇
  2019年   48篇
  2018年   54篇
  2017年   55篇
  2016年   80篇
  2015年   58篇
  2014年   51篇
  2013年   513篇
  2012年   54篇
  2011年   89篇
  2010年   68篇
  2009年   70篇
  2008年   57篇
  2007年   50篇
  2006年   56篇
  2005年   25篇
  2004年   33篇
  2003年   24篇
  2002年   34篇
  2001年   48篇
  2000年   21篇
  1999年   26篇
  1998年   19篇
  1997年   22篇
  1996年   17篇
  1995年   23篇
  1994年   22篇
  1993年   29篇
  1992年   24篇
  1991年   14篇
  1990年   18篇
  1989年   9篇
  1988年   25篇
  1987年   23篇
  1986年   24篇
  1985年   21篇
  1984年   36篇
  1983年   22篇
  1982年   22篇
  1981年   27篇
  1980年   25篇
  1979年   19篇
  1978年   20篇
  1977年   18篇
  1976年   21篇
  1974年   12篇
  1973年   13篇
  1972年   17篇
  1970年   12篇
排序方式: 共有2202条查询结果,搜索用时 15 毫秒
161.
162.
Based on existing work, there are clear differences in the incidence of degree holders across the urban–rural hierarchy in favor of large urban areas. In large part, this gradient can be traced to the higher probability of obtaining a degree among residents of larger urban centers. Utilizing data from the Youth in Transition Survey (YITS), this paper explores factors that may account for university participation among Canadian youth. It asks whether this difference is due to local access to universities, family characteristics (e.g., parental income, education, and immigrant status), and local labor market characteristics that may increase the incentive for urban youth to attend university.  相似文献   
163.
Aspects of Roman pottery production at the workshops of Kontich, Tienen, Rumst, Grobbendonk and Clavier-Vervoz in the Civitas Tungrorum of central Belgium are explored. A total of 150 wasters from five sites were studied macroscopically, as well as via a combination of thin-section petrography, geochemistry and scanning electron microscopy, in order to gain insights into ceramic technology and aspects of the organization of production. Particular emphasis was given to the individual technological sequences and shared strategies of raw material selection, paste preparation and firing employed at the five adjacent sites. The integration of petrographic and geochemical data permitted the establishment of compositional reference groups for the Roman kiln sites of Civitas Tungrorum, which can be used to track their products within the surrounding landscape.  相似文献   
164.
Fourteen glass objects recovered from excavations at the ancient city of Tall Zirā‛a, Jordan, were analysed using laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) to determine the period and origin of manufacture. The composition of glasses manufactured in the Late Bronze Age (LBA) and Iron Age are distinctly different, therefore major element analysis can be used to distinguish between the groups relatively easily. The LA-ICP-MS analysis provided quantitative trace element data which were used to determine the provenance of those glasses identified as LBA. This research discusses the implications of the presence of both Egyptian and Mesopotamian LBA glasses and examines the varying compositions and colour strategies employed in both the LBA and Iron Age objects. Specifically, glass in the LBA was considered to be one of the highest status items attainable, playing an instrumental role in diplomatic gift-giving. When considered with the archaeological information, the significance of these finds at Tall Zirā‛a indicates that this city was a settlement of high status, not primarily a convenient trading stop on the Transjordan route.  相似文献   
165.
166.
Occasionally, it becomes possible to re-excavate and re-analyse prehistoric monuments. Within the geographical area managed by Vesthimmerlands Museum, this happened in the case of the Late Neolithic Stenildgård grave on the western periphery of the town of Aars, Northern Danmark. The grave was excavated for the first time at the early 1930s and re-excavated in 2015 in connection with the construction of a ring road around the southern parts of Aars. In 2015, a series of state-of-the-art scientific analyses were conducted in relation to this grave. Following a detailed presentation of the original publication and later interpretations, this article presents the results of the new excavation and scientific analyses. The new results include identification of the human bones, the development of the stratigraphy, strontium isotope analysis, pollen analysis, macro-fossil analysis, and the analysis of pitch. Since the 1930s, the Stenildgård grave has been considered a burial, which, to a great extent, deviated from usual practice showing one of the earliest examples of cremation in prehistoric Denmark. Furthermore, the recent investigation revealed that the grave was equipped with a surrounding wooden structure and possibly influenced by West European Bell Beaker Cultures. Also, the grave seems to form part of an extensive Late Neolithic burial and settlement system, where complex rituals were carried out.  相似文献   
167.
This contribution’s broad and in parts essayistic approach to Arabia’s Neolithic is less a discussion of findings than an explicit advocacy for future holistic research strategies. Based on the contribution’s meta-theoretical inputs, it suggests two sets of theses to be tested by the hitherto gained fragmentary information and future research on Arabia’s Neolithic. It aims to encourage an “emancipation” of Arabia’s early to mid-Holocene research from conceptions developed outside its regions, and to identify the Neolithic elements and developments of the Arabian lands by distinguishing incursions from primarily autochthonous and/or autonomous adaptations in their own right. It is suggested that productive lifeways are considered to be the only crucial parameter to testify a Neolithic status. In our view this is the case, provokingly enough, for the productive foraging management of natural resources which attests surplus and pre-planning strategies and contacts with established Neolithic socio-economies. Polylinear incursions and autochthonous adaptations are discussed as the two poles between which early to mid-Holocene developments in Arabia took place. A set of basic and a set of trajectory hypotheses on Arabia’s neolithisation and finally sustainable sedentarisation (reliance on oases economies) is presented, offered as a possible framework for future multi-/ transdisciplinary research.  相似文献   
168.
169.
ABSTRACT

Recent historiography on Nazism has taken what has been coined ‘the imperial turn’. The key issue at stake is to what extent Germany’s expansionist policy between 1939 and 1945 could be considered a variant of the more general historical phenomenon of (modern) imperialism. Over the course of the last two decades, all sorts of continuities and parallels between traditional European colonialism and Nazi imperialism have been analysed. In these studies, a top-down approach is prevalent, concentrating on ‘Berlin’, Nazi politics and leaders. This article chooses a different perspective, bringing actors of a lower level to the fore. The focus is on the Dutch contribution to the Nazi policy of ‘Germanization’ of the occupied East. Between the summers of 1941 and 1944, over five thousand Dutch civilians voluntarily left their homeland to be employed in the so-called German occupied eastern territories. Although their contracts were often temporary, they were seen (and saw themselves) as the first group of ‘pioneers’ of a giant colonizing project. This article investigates the Dutch organizations coordinating their recruitment and employment, and zooms in on the expectations and experiences of individual recruits. With the Dutch case as an example, the article points at the broader historical context of the Dutch efforts. At the same time, it shows that this junior partner of the German had his own colonial agenda. The incompatibility of both agendas inevitably led to false expectations, caused a general sense of disillusionment on both sides and led to many frictions ‘on the spot’.  相似文献   
170.
Methods to record shipwreck sites have evolved considerably in the past two decades. Digital technology and marine robotics regularly present faster and more precise ways to excavate, clean, tag, and record ship remains, while computers simplify many of the steps involved in the reconstruction of ships from their archaeological remains. At the same time, the internet is creating opportunities to share primary data in real time and on a wide scale. This paper presents a methodology used by the authors to record and reconstruct the wooden structures of a 19th-century shipwreck in southern Brazil (Lagoa do Peixe site) and of a 16th-century shipwreck in Croatia (the Gnali? shipwreck).  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