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   275篇
  免费   5篇
  280篇
  2023年   1篇
  2022年   1篇
  2020年   4篇
  2019年   4篇
  2018年   7篇
  2017年   4篇
  2016年   20篇
  2015年   6篇
  2014年   3篇
  2013年   48篇
  2012年   18篇
  2011年   20篇
  2010年   5篇
  2009年   6篇
  2008年   6篇
  2007年   3篇
  2006年   4篇
  2005年   66篇
  2004年   27篇
  2003年   11篇
  2002年   5篇
  2001年   1篇
  2000年   2篇
  1999年   1篇
  1998年   2篇
  1997年   1篇
  1996年   1篇
  1985年   1篇
  1973年   1篇
  1971年   1篇
排序方式: 共有280条查询结果,搜索用时 0 毫秒
51.
This paper demonstrates the results of analyses of Cladocera, pollen, plant macrofossil, lithological and radiocarbon data recovered from a mire located in the Rawka River valley in central Poland. These studies permit to recognise the development of hydrology phases in Kopanicha mire and give insight into Holocene fluvial dynamics of the system; radiocarbon dating partly allowed da-ting of the patterns of Holocene valley floor development of the Rawka River. The Kopanicha mire was formed during the Atlantic period. At that time, an oxbow lake formed, becoming a mire during the Subboreal and possibly Subatlantic periods. The high sensitivity of the oxbow lakes, fens, fauna, and flora remains to climate variations - especially to changes in water level connected with the ag-gradation-erosion cycle of rivers - allows the reconstruction of the palaeoecological changes that oc-curred in the mire. The frequency and timing of hydroclimatic oscillations at Kopanicha show strong similarities to records from other sites in Poland. Changes in Cladocera frequency and plant assem-blages were mostly influenced by the Rawka River which controlled the hydrological regime of the mire. The main factors controlling the presence of Cladocera taxa were the water level and the pres-ence of favourable conditions in the mire (e.g. pH, vegetation). Most of the changes occurred in re-sponse to climate changes, but some of them were connected with local factors.  相似文献   
52.
53.
54.
The aim of this paper is to present and discuss empirical evidence on the dynamics of occupation and site formation processes from contemporary mobile campsites in Northwest Siberia. The questions posed are derived generally from archaeological studies of Upper Paleolithic record in Europe. We document the active Nenets summer camps at lakes and the abandoned winter and spring camps in the open tundra and the forest tundra. Analysis of the floral and zoological resources shows that plant resources and fish are available predominantly in the summer while reindeer are abundant in these regions in fall and winter when they return from summer pastures further north. When natural resources are not available, groups supplement with food purchased at shops. Within these living camps, “structures évidentes” and “structures latentes” of classical French paleoethnology cannot be distinguished as clearly as at Upper Paleolithic sites: and architectural remains, ash from hearths, and other objects may be removed from the central areas towards the site peripheries. However the investigated camps preserve a discrete structure with interior living areas (including children’s playgrounds), exterior areas with evidence of reindeer carcass processing, woodworking, and other activities, peripheral toss zones, and dispersed activity remains in the surrounding landscape.  相似文献   
55.
Different ideas are proposed all the time in archaeology. These often rise or fall based on how well they predict objective, measureable characteristics of the archaeological record. But other ideas are more paradigmatic, concerned with how we think about the archaeological record rather than the record itself. What determines which ideas rise or fall? This essay considers the specific question of why Lewis Binford’s middle-range approach became more prevalent over the very similar formation-process approach of Michael Schiffer in the 1970s and 1980s. It is hypothesized that while an approach’s ability to predict objective characteristics of the archaeological record is one selective factor, in this particular case, other factors, including personality and, especially, the association between Binford’s approach and significant, long-standing problems of prehistory, were also significant selective factors.  相似文献   
56.
The Matthew and Matilda Effects in science were coined in 1968 (Robert K. Merton) and in 1993 (Margaret W. Rossiter) respectively, as tools to analyse the reward systems of science. By proposing the African Eve Effect in science as a third effect, the original scope for analysis of these systems is broadened from the social structure of science to the anthropological dimension of science. Similarly, the ??psychosocial processes?? that were considered as affecting the reward systems (Merton, Science 159:56?C63, 1968) are extended to include discursive practices. The African Eve Effect refers to the scientific notion of the ??African Eve?? (or mitochondrial (mtDNA) Eve), a concept put forward by scientists to designate the genetic mother of all modern humans. Three discursive conventions constitute the African Eve Effect and together shape patterns of the distribution of recognition for scientific work: projecting imaginative geographies of otherness onto the frontiers of science; collecting, transporting and enframing material and ideas according to a Western epistemological order; and ??evolutionising?? nature and the human in science. The objective of this paper is to specify and illustrate an experimental tool for analysing the entanglement of the reward system in science with culturally fashioned imaginaries and agendas.  相似文献   
57.
The shuteibo, a type of communal cemetery characterized by a circular embankment, was constructed in the latter half of the Late Jomon (c. 1520 cal BC–1250 cal BC) in Hokkaido, Japan. Shuteibo at the Kiusu, Misawa-1, Bibi-4 and Kashiwagi-B sites are key to understanding the complex hunter-gatherer societies of the Late Jomon. Elite graves inside the shuteibo and non-elite graves outside them show clear differences in terms of grave goods, red ocher and grave markers at Kiusu-4. These communal cemeteries may have been created and maintained by elites who had access to highly valued materials, such as jadeite, through long-distance trade. Differences in the number of graves and grave goods among shuteibo at the Misawa-1 and Bibi-4 sites indicate differences in group size and intra-site elite differentiation. The Kiusu site has both the largest example and the largest concentration of these cemeteries in Hokkaido. At the inter-site level, differences in the size of these communal cemeteries indicate variability in the number of corporate groups as well as in relative power between sites.  相似文献   
58.
For many decades tephrochronology has been used as a scientific method for dating archaeological as well as geological remains in Iceland. Recently, parts of the tephrochronology for the eruptions of the famous volcano Hekla have been questioned by the author. This is due to obvious differences in dating results of archaeological artefacts from the valley of Thjórsárdalur in southern Iceland and the current tephrochronological dating of its devastation. While the devastation of the valley has been dated to AD 1104 and is thought to have been caused by a huge eruption of mount Hekla in that year, the artefacts from excavations and stray finds, as well as new 14C results, show somewhat later 12th‐13th century dates. The paper deals with this obvious discrepancy, which has hitherto been ignored, together with the results of archaeological excavations in 1983–86 at Stóng in Thjórsárdalur; it also gives a critical analysis of the historical methodology of the tephrochronologists.  相似文献   
59.

In this issue of NAR the development of the agrarian landscape and the farm structure in the Iron Age in Southwest Norway ‐ especially in the district of Jæren ‐ is taken up as a subject for discussion. Two publications by Bj?rn Myhre (Funn, fornminner og ?degårder. Jernalderens bosetning i H?yland Fjellbygd. Stavanger Museums Skrifter 7,1972 and The Iron Age Farm in Southwest Norway. NAR 6, No. 1, 1973) are commented upon by Björn Ambrosiani, Arnvid Lillehammer, Sven‐Olof Lindquist, Perry Rolfsen and Ulf Sporrong. Bj?rn Myhre's reply to the comments closes the discussion.  相似文献   
60.
Bronze Age finds in Norway have recurringly generated discussion throughout 150 years of Norwegian archaeology. This article outlines the history of attitudes towards the Bronze Age in Norway, and attempts to identify paradigmatic features. In general, the same basic analytic concepts have been employed since Christie's and Worsaae's days until the present. This is somewhat surprising, especially in light of general archaeological postwar research efforts in Norway and international developments in theory and method. The article examines some of the contemporary social mechanisms that have hampered rejuvenation of Bronze Age research, and outlines basic positions the author believes to be valuable.  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