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   701篇
  免费   41篇
  2023年   8篇
  2022年   8篇
  2021年   3篇
  2020年   27篇
  2019年   23篇
  2018年   28篇
  2017年   22篇
  2016年   29篇
  2015年   25篇
  2014年   22篇
  2013年   138篇
  2012年   55篇
  2011年   43篇
  2010年   34篇
  2009年   29篇
  2008年   65篇
  2007年   30篇
  2006年   28篇
  2005年   16篇
  2004年   11篇
  2003年   7篇
  2002年   13篇
  2001年   15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
  1986年   1篇
  1983年   1篇
  1982年   1篇
  1981年   1篇
  1980年   3篇
  1978年   3篇
排序方式: 共有742条查询结果,搜索用时 15 毫秒
41.
For investigating the formation of frontier zones, study of changes in small communities that constituted the majority of earlier populations provides a different perspective from a focus on major centers. A network model applied to settlement and cemetery sites on Romes Danube River frontier in Bavaria, Germany, shows that many communities, through participation in regional and long-distance circulation systems, played significant roles in creating the dynamic and culturally heterogeneous character of that landscape. This approach offers a model applicable to analysis of the formation and functioning of frontier regions in all cultural contexts.  相似文献   
42.
The current archaeological evidence for the presence of goats among herder societies in southern Africa is reviewed. Presumably, the Khoekhoen obtained goats from Bantu-speaking farmers, but the exact timing of diffusion is still unknown. Archaeological evidence for the presence of goats in the Western Cape remains, to date, elusive, despite historical reference to goats. It is very often impossible to distinguish sheep from goat based on fragmentary archaeological remains such as those commonly found in southern Africa. Intrinsic physiological characteristics make goats suitable farm animals, and they may commonly have acted as sheep-leaders during prehistoric times, a practice noted amongst the Khoekhoen during the early part of the 19th century. Acting as sheep-leaders might have required herders to deliberately keep goat numbers low. There are few depictions of goats in southern African rock art. Résume La preuve archéologique actuelle pour la présence de chèvres parmi les sociétés de berger dans Afrique méridionale est réexaminée. Vraisemblablement, le Khoekhoen a obtenu des chèvres de fermiers parlant Bantu, mais le moment exact de diffusion est toujours inconnu. La preuve archéologique pour la présence de chèvres dans les restes de Cap de l’ouest, dater, insaisissable, malgré la référence historique aux chèvres. C’est très souvent impossible de distinguer le mouton de la chèvre basée sur les restes archéologiques fragmentaires tels que ces ordinairement trouvé dans Afrique méridionale. Les caractéristiques physiologiques intrinsèques font des chèvres les animaux de ferme convenables, et ils ont pu servir ordinairement des mouton-dirigeants pendant les temps préhistoriques, une pratique réputée parmi le Khoekhoen pendant la première partie du 19e siècle. Servir des mouton-dirigeants pourrait avoir exigé que les bergers aient exprès gardé le niveau bas de nombres de chèvre. Il y a peu de représentations de chèvres dans l’art de rocher Africain méridional.  相似文献   
43.
This paper presents the initial results of excavations at Kanjera South, located on the Homa Peninsula in Western Kenya. Since 1995, our exploration of this locality has yielded a combination of artefacts and well preserved faunal remains in a sedimentary context that also allows for environmental reconstruction. Here we examine the history of exploration of Kanjera and its significance in the development of palaeoanthropological research in East Africa. We also summarise our findings from the recently discovered Oldowan site. Taphonomic analyses suggest that the archaeological layers were formed at least partially by hominin activity. Artefacts made from a wide variety of raw materials are abundant, as are animal bones. Results of our first analyses confirm that Oldowan hominins had considerable behavioural flexibility and occupied a range of habitats.Cet article présente des résultats préliminaires de nos fouilles au site de Kanjera South, situé sur la péninsule de Homa au Kenya occidental. Depuis 1995 nos explorations à cette localité ont produit une combinaison des outils lithiques et des restes fossils dans un bon état de conservation venant d’un contexte sédimentaire qui permet également les reconstitutions paleoenvironnementaux. Ici nous examinons l’histoire de l’exploration de Kanjera et de son importance dans le développement de la recherche paleoanthropologique en Afrique de l’Est. Nous récapitulons également nos résultats du gisement récemment découvert d’Oldowan. L’étude taphonomique suggère que les couches archéologiques ont été formées au moins partiellement par l’activité des hominins. Les objets fabriqués faits à partir d’une grande variété de matières lithiques sont abondants, de même que les os animaux. Les résultats de nos premières analyses confirment que les hominins d’Oldowan ont eu une flexibilité de comportement considérable et ont occupé une gamme d’habitats différents.  相似文献   
44.
Projectile weaponry is a human cultural universal, but its origins and antiquity remain poorly understood. Stone- and bone-tipped projectile weapons have long been treated as emergent features of the "Upper Paleolithic" behavioral revolution. Recently it has been proposed that projectile technology was in widespread use among Homo sapiens populations in Africa during Middle Stone Age (MSA) times. One obstacle to researching the origins of projectile point technology is that the criteria archaeologists employ for recognizing plausible and implausible stone projectile points are largely subjective (overall tool shape, microwear traces). Tip cross-sectional area (TCSA) is a ballistically significant dimension that works well at discriminating North American stone projectile points (spearthrower dart tips and arrowheads) from spear points. This paper compares the TCSA values of ethnographic North American stone projectile points to hypothetical Middle and Upper Paleolithic stone projectile points from Africa, the Levant, and Europe. The results of this comparison do not support the hypothesis of widespread use of stone-tipped projectiles in Africa, the Levant, or Europe prior to 40 Ka. In the New World and in Australia, where we have the richest ethnographic record of stone projectile point use, these implements are largely employed in big-game hunting and in warfare. One or both of these factors may have played a role in the widespread adoption of stone projectile point technology after 40 Ka.  相似文献   
45.
Laser-Induced Breakdown Spectroscopy (LIBS) was used in the examination of Bronze Age painted plaster samples from several sites in the Aegean and Eastern Mediterranean. The elemental content of paint materials was determined in most cases leading to the identification of the pigment used in agreement with data from analyses of the same samples with other established techniques. The analyses demonstrate that a virtually non-destructive technique such as LIBS provides sufficient data for the elemental characterisation of painting materials while in parallel has the capability for routine, rapid analysis of archaeological objects enabling the quick characterisation or screening of different types of artefacts. This certainly shows an important way forward in technological studies of fragile and scarce archaeological material.  相似文献   
46.
Osteoarthritis is the second most common pathology found in anthropological collections. Although a great deal is known about osteoarthritis, it is not yet known whether in skeletal populations there is a correlation between osteoarthritis and body mass. In this study, lower limb and spinal osteoarthritis scores were taken to determine whether body mass and femoral length correlate with osteoarthritis on weight bearing joints. Osteoarthritis was measured using a four-point ordinal scale on a sample of 114 adult prehistoric Californian Amerinds. Body mass was calculated from femoral head breadth; femoral length was measured using standard procedures; and age and sex were determined through standard osteological procedures. Using Spearman correlations, body mass and femoral length did not correlate significantly with any of the osteoarthritis variables. Age correlated significantly with nearly all of the osteoarthritis variables (hip, r = 0.507; knee, r = 0.528; cervical, r = 0.513; thoracic, r = 0.647; lumbar, r = 0.507, P-values < 0.001); and body mass and femoral length correlated with sex (r-values = 0.835 and 0.654, P-values < 0.001). With age and sex controls, body mass negatively correlated with the hip osteoarthritis variable (r = −0.202, P < 0.05), but not with any of the other osteoarthritis variables. Results concur with previous findings in the anthropological literature and highlight complexities of osteoarthritis etiology.  相似文献   
47.
Near Eastern fieldwork in mining archaeology and archaeometallurgy began at Timna (Israel) in the 1960s and 1970s and continued in Feinan (Jordan) in the 1980s and 1990s. For the first time, Bronze Age copper mines were excavated and cleared and importance was given to the slag recovered. At both sites copper was produced for over 5000 years, from the Chalcolithic to the Mamluk periods. Although the broad outlines of technical development can be traced, much remains to be learned in future studies.  相似文献   
48.
本文通过对被认为属于"夜郎文化"的威宁中水、赫章可乐、普安铜鼓山等遗址和墓地的出土遗物的对比研究,指出过去所认定的"夜郎文化"实际上是包含了三种不同的青铜时代文化类型,由此得出的"夜郎文化"并非严格上的考古学文化,而仅是一个大杂烩。  相似文献   
49.
2002年度香港西贡沙下遗址C02区和DⅡ02区考古发掘简报   总被引:2,自引:0,他引:2  
20 0 2年 ,香港古物古迹办事处和河南省文物考古研究所联合在香港发掘西贡沙下遗址 ,发掘面积达 70 0平方米。发现有新石器时代晚期、青铜时代和宋元代的遗存。遗迹中属新石器时代晚期有房址、灰坑等 ,青铜时代有房址、灰坑、石器制造场、灰沟等 ,宋元代有灰坑。遗物中有不同时代的石器、陶器、硬陶器、瓷器、釉陶器等。  相似文献   
50.
在新石器时代和青铜时代早期,长城沿线的内蒙古中南部、陕北、内蒙古东南部、辽西等地分布有若干石城带,这些石城带基本上都位于当时农业、半农业文化区的北缘,受到气候环境变迁的影响而南北略有移动,其重要功能之一是为了防御北方民族的南侵。由于这些特点与长城有可比之处,故可称其为长城的"原型"。  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