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   674篇
  免费   38篇
  2023年   8篇
  2022年   7篇
  2021年   3篇
  2020年   26篇
  2019年   22篇
  2018年   26篇
  2017年   22篇
  2016年   28篇
  2015年   23篇
  2014年   21篇
  2013年   132篇
  2012年   54篇
  2011年   41篇
  2010年   33篇
  2009年   26篇
  2008年   64篇
  2007年   30篇
  2006年   27篇
  2005年   16篇
  2004年   10篇
  2003年   6篇
  2002年   12篇
  2001年   14篇
  2000年   6篇
  1999年   4篇
  1998年   8篇
  1997年   9篇
  1996年   7篇
  1995年   6篇
  1994年   6篇
  1993年   1篇
  1992年   2篇
  1991年   1篇
  1990年   1篇
  1988年   2篇
  1983年   1篇
  1981年   1篇
  1980年   3篇
  1978年   3篇
排序方式: 共有712条查询结果,搜索用时 62 毫秒
141.
The faunal sample from Kadzi, an Early Iron Age site in the Zambezi Valley, is the first substantial sample for that period and region in Zimbabwe. The site appears to have been a permanent or semipermanent settlement. The sample consists mainly of bovid remains, dominated by buffalo as a single species, suggesting special hunting skills. The presence of some domestic animals proves that these animals were available to the inhabitants of the site. Their status in the community is, however, uncertain. Possible explanations for the small number of cattle fragments could be the result of paucity of livestock for environmental or other reasons, or may reflect differential disposal of cattle bones as part of ritual expression. Environmental conditions, particularly the possible presence of the tsetse fly, could also have been a factor in determining the distribution of livestock and herd sizes in the region. The faunal remains provide valuable insight into the subsistence strategies of the period. They also provide evidence about animals present in the region during the first millennium AD.
Résumé  Des restes animaux provenant du Kadzi, un site de l’age du fer supérieur dans la vallée du Zambeze, fournissent pour la première fois des données pour cette période et cette région du Zimbabwe. Le site a été probablement occupée d’une manière permanente ou semipermanente. Les restes se composent principalement d’ossements bovins, dominés par le Buffle comme seule espèce, ce qui temoigne de techniques de chasse avancées. La présence (parmi les ossements) d’un certain nombre d’animaux domestiques indique qu’ils étaient disponibles pour les habitants du site, mais leur statut dans la communauté reste ambigu. Le nombre peu élève de fragments d’ossements de boeuf est peutêtre lié à la taille réduite du troupeau pour des raisons environnementales ou autres ou bien résulte de l’utilisation rituelle de certains ossements. Les conditions environnementales et plus particulièrement la présence probable de la mouche Tse Tse ont pu également être des facteurs determinant pour la repartition du boeuf dans la région et la taille du troupeau. Ces restes faunistiques fournissent ainsi des informations importantes aussi bien sur les stratégies de subsistance pour la période considérée que sur les animaux présents dans la région au cours du 1er millénaire AD.
  相似文献   
142.
In this study we applied a multidisciplinary approach, coupling geophysical and geochemical measurements, to unveil the provenance of 170 obsidian flakes, collected on the volcanic island of Ustica (Sicily). On this island there are some prehistoric settlements dated from the Neolithic to the Middle Bronze Age. Despite not having geological outcrops of obsidian rocks, the countryside of Ustica is rich in fragments of this volcanic glass, imported from other source areas. The study of obsidian findings was carried out first through visual observations and density measurements. At least two different obsidian families have been distinguished, probably imported from Lipari and Pantelleria islands. Analysing the magnetic properties of the samples, these two main sources were confirmed, but the possibility of other provenances was inferred. Finally, we characterized the geochemical signature of the Ustica obsidians by performing microchemical analyses through electron microprobe (EMPA) and laser ablation (LA–ICP–MS). The results were compared with literature data, confirming the presence of the Lipari and Pantelleria sources (Sicily) and indicating for the first time in this part of Italy a third provenance from Palmarola island (Latium). Our results shed new light on the commercial exchanges in the peri‐Tyrrhenian area during the prehistoric age.  相似文献   
143.
Recent work at the Qijia Culture type-site of Qijiaping in the Tao River valley of Gansu Province, China, has shed light on the complex nature of this early Bronze Age site. Situated at the intersection between the mixed pastoralists of eastern central Asia and the agriculturalists of China’s northern Central Plain, Qijia peoples absorbed, evolved, and transmitted products and technologies that shaped cultural developments in both directions. The Tao River Archaeological Project (TRAP) used a combination of surface survey, geophysics, digital mapping, and targeted excavation to expand our understanding of the multicomponent nature of Qijiaping. This included identifying potential habitation, mortuary, and production locales; examining site-wide ceramic use; mapping anomalies through geophysics; and further exploring these through targeted excavations. The results have expanded our knowledge of the site structure of Qijiaping and its place in the wider Qijia interaction sphere, while also confirming the usefulness of this methodology.  相似文献   
144.
In September 2014, the University of New England (UNE), Australia, began a three‐year programme of archaeological fieldwork and post‐excavation analyses focused on the site of Saruq al‐Hadid. In this paper, we present the initial results of our current field and laboratory research particularly related to site stratigraphy and formation processes, relative and absolute chronology, and the preliminary results of various programmes of post‐excavation analyses including archaeobotanical, zooarchaeological, ceramic and archaeometallurgical studies. These studies provide new data to build into the archaeological understanding of Saruq al‐Hadid that has, to date, focused largely on intensive excavation.  相似文献   
145.
Archaeological wood is usually severely degraded. The Norwegian Viking Age Oseberg find exemplifies problems arising due to past conservation treatments and the need for new types of preservatives. Phenol formaldehyde (PF) has been investigated as a consolidant for alum‐treated wood. X‐ray tomography has revealed that it is possible to obtain a porous structure inside the wood, ensuring ethical acceptability by allowing re‐treatment. In order to understand the curing mechanics, the kinetics of the initial condensation reaction were elucidated at room temperature. It was found that a second‐order reaction using both phenol and formaldehyde concentrations is the most probable mechanism.  相似文献   
146.
Equid remains are scarce and very fragmented in Iberian Neolithic and Bronze Age sites. Evidence suggesting that horses were domesticated does exist, but it is often inconclusive, thus leaving the question unanswered. Today, DNA analyses have provided information about a, most likely Iberian, nucleus of horse domestication, making it crucially important to expand the database. The Holocene sequence (6th and 3rd millennium cal bc ) of the Cueva de El Mirador (Sierra de Atapuerca, Spain) has yielded 92 equid remains distributed in 12 Neolithic and Bronze Age levels. In this paper, we present the study of the equid remains from the Cueva de El Mirador from an archaeozoological perspective, giving indirect evidence of horse domestication. Our results vary widely and lead to open interpretations about horse domestication and how humans used these animals. This study of horse remains focuses on species identification and on determining how humans economically used these animals. Copyright © 2014 John Wiley & Sons, Ltd.  相似文献   
147.
A sample of 303 skeletons from the Etruscan necropolis of Spina (Ferrara, Italy, 6th–3rd centuries bc ) was examined for paleopathological lesions in order to assess the general health, diseases and quality of life of this Iron Age population. The observed pathologies included porotic hyperostosis, specific and aspecific infections, metabolic and endocrine disorders, tumours and osteoarthritis. A total of 46.7% of adults and 7.7% of subadults showed at least one pathological lesion. Statistical comparisons were made between sexes and adult‐age classes (20–35 years and >35 years) to analyse the prevalence of the lesions. The analysis of porotic hyperostosis and osteoperiostitis allowed to determine the general health status of this group, and the analysis of osteoarthritis allowed to hypothesise a gender division of labour. The results suggest a relatively high‐life expectancy for the time as well as good health and quality of life. The few specific infections and metabolic disorders indicate fairly good nutrition, while the high frequency of porotic hyperostosis can be partly linked to some type of hereditary anaemia. Copyright © 2015 John Wiley & Sons, Ltd.  相似文献   
148.
The study macroscopically examined 270 sexed adults and 190 subadult individuals for evidence of ante mortem fractures and surgical practice in Dorset, during the Iron Age (5th century BC to 1st century AD) and Romano‐British period (1st century to the end of the 4th century AD), in order to understand medical treatment in both periods and determine the extent to which these practices changed post conquest (43 AD). As treatment during these periods is not well understood, a conservative approach to fracture analysis was employed, which attempted to minimise the influence of fracture type and location on results by excluding bones in which fracture deformities may only be corrected by surgery. The study also excluded fractures resulting from bone mineralisation diseases or neoplasms. Skeletal evidence for surgical treatment was identified using funerary, taphonomic and osteological criterion to determine when the surgery took place, and to establish that changes were not caused by post mortem activity. The analysis of fracture treatment demonstrated that in both periods, adult fractures were well set with few secondary changes; a result also influenced by the stable nature of the fracture types. No evidence for sex‐differences in treatment was observed. Evidence for surgery was identified in two Romano‐British individuals: an unsuccessful limb amputation, and an embryotomy procedure that was most likely carried out in an attempt to save the mother. This regional assessment of medical treatment has shown that in both periods, highly skilled practitioners were able to successfully treat a range of fractures and by doing so, minimised the patient's risk of impairment. The study also supplements the very limited archaeological evidence for medical practice and surgery in Iron Age and Roman Britain, and suggests that post conquest, surgical knowledge rapidly increased in association with wider socio‐cultural developments in education, pharmacology and sanitation. Copyright © 2009 John Wiley & Sons, Ltd.  相似文献   
149.
This paper investigates the spatial organization of social relations in settlement contexts through a quantitative and distributional analysis of surface ceramic attributes from Iron Age Period (1200–300 BC) archaeological sites in Southern India. The results discern variation in depositional contexts across each site, from which I infer a variety of basic settlement activity structures (e.g., site maintenance, trash disposal, residence, animal husbandry, metallurgy, ritual). I use these results, together with further analyses of artifact and feature distributions, to infer a basic suite of places, place-making practices and some of the social relations and organizational structures that produced these historically unique Iron Age settlement landscapes.  相似文献   
150.
Paleoclimatic data from the tropical Pacific islands are compared to archaeological evidence for fortification construction in the Holocene. The results suggest that in some regions, people constructed more fortifications during periods that match the chronology for the Little Ice Age (AD 1450–1850) in the Northern Hemisphere. Periods of storminess and drought associated with the El Niño Southern Oscillation have less temporal correlation with the emergence of fortifications in the Pacific, but significant spatial correlation with the most severe conditions associated with this cycle. These temporal and spatial correlations require additional study to investigate possible causal relationships.  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