全文获取类型
收费全文 | 1594篇 |
免费 | 19篇 |
专业分类
1613篇 |
出版年
2024年 | 1篇 |
2023年 | 7篇 |
2022年 | 1篇 |
2021年 | 3篇 |
2020年 | 14篇 |
2019年 | 9篇 |
2018年 | 297篇 |
2017年 | 233篇 |
2016年 | 245篇 |
2015年 | 23篇 |
2014年 | 27篇 |
2013年 | 82篇 |
2012年 | 43篇 |
2011年 | 167篇 |
2010年 | 178篇 |
2009年 | 49篇 |
2008年 | 80篇 |
2007年 | 76篇 |
2006年 | 2篇 |
2005年 | 33篇 |
2004年 | 14篇 |
2003年 | 6篇 |
2002年 | 1篇 |
2000年 | 1篇 |
1999年 | 4篇 |
1998年 | 1篇 |
1997年 | 3篇 |
1993年 | 2篇 |
1992年 | 1篇 |
1991年 | 1篇 |
1989年 | 1篇 |
1987年 | 3篇 |
1986年 | 1篇 |
1982年 | 1篇 |
1981年 | 1篇 |
1971年 | 1篇 |
1970年 | 1篇 |
排序方式: 共有1613条查询结果,搜索用时 15 毫秒
91.
Identifying a technological style in the making of lime plasters at Teopancazco (Teotihuacan,México)
Alessandra Pecci Domenico Miriello Donatella Barca Gino M. Crisci Raffaella De Luca Agustin Ortiz Linda R. Manzanilla Jorge Blancas Luis Barba 《Archaeological and Anthropological Sciences》2018,10(2):315-335
The aim of this article is to focus on the technology of archeological plasters at Teotihuacan (Central Mexico), from the Classic Period (200–650 A.D.), focusing in the study of Teopancazco, a neighborhood center in the city. Petrographic and chemical analyses by OM, SEM-EDS, and LA-ICP-MS were conducted to characterize samples from different constructive phases and sectors of the neighborhood center, to determine the provenance of the raw materials employed in the manufacturing (e.g., volcanic glass shards) and to assess whether a shift occurred in the manufacturing of plasters and in the procurement strategies of raw materials during the different phases. The results of the analyses show that almost no changes occurred in the making of the plaster during more than four centuries and allow us to consider the presence of a technological style in their manufacture, which is characterized by the making of plaster by mixing lime with volcanic glass shards, which in the case of Teopancazco were derived from the Altotonga (Veracruz) magmatic system. The data at our disposal suggest that this style was developed in Teopancazco and later introduced throughout the city of Teotihuacan in the Early Xolalpan phase (A.D. 350), although we still do not know whether the provenance of the raw materials is the same. The wide distribution of this technological tradition could be due to the technological properties of the materials and/or the influence of the intermediate elite who ruled over Teopancazco. The paper confirms that the study of material culture and technology sheds light on broader cultural aspects of ancient societies. 相似文献
92.
María Isabel Mota-López Rafael Fort Mónica Álvarez de Buergo Antonio Pizzo Rubén Maderuelo-Sanz Juan Miguel Meneses-Rodríguez Duygu Ergenç 《Archaeological and Anthropological Sciences》2018,10(5):1007-1022
The aim of this work is to characterize the original concrete from Roman buildings for public spectacles, theatre and amphitheatre, from Emerita Augusta, Mérida, Spain. An advanced knowledge of the Roman concrete composition is required for a reliable restoration and preservation of these ancient monuments. The concrete was studied through mineralogical (optical polarized microscopy and X-ray diffraction) and petrophysical (bulk and real density, open porosity to water and Hg, mechanical strength and ultrasonic velocity) analyses. With this work, it is possible to fill the gap that exists in this field and the characterization of the materials used in the Roman concrete from these two buildings, never previously studied, despite the significance of this archaeological ensemble, declared a World Heritage Site by UNESCO in 1993. The results allowed us to determine the composition of the Roman concrete and to infer the provenance of the aggregates used in these monuments. 相似文献
93.
Will Archer Cornel M. Pop Zeljko Rezek Stefan Schlager Sam C. Lin Marcel Weiss Tamara Dogandžić Dawit Desta Shannon P. McPherron 《Archaeological and Anthropological Sciences》2018,10(8):1991-2003
The archaeological record represents a window onto the complex relationship between stone artefact variance and hominin behaviour. Differences in the shapes and sizes of stone flakes—the most abundant remains of past behaviours for much of human evolutionary history—may be underpinned by variation in a range of different environmental and behavioural factors. Controlled flake production experiments have drawn inferences between flake platform preparation behaviours, which have thus far been approximated by linear measurements, and different aspects of overall stone flake variability (Dibble and Rezek J Archaeol Sci 36:1945–1954, 2009; Lin et al. Am Antiq 724–745, 2013; Magnani et al. J Archaeol Sci 46:37–49, 2014; Rezek et al. J Archaeol Sci 38:1346–1359, 2011). However, when the results are applied to archaeological assemblages, there remains a substantial amount of unexplained variability. It is unclear whether this disparity between explanatory models and archaeological data is a result of measurement error on certain key variables, whether traditional analyses are somehow a general limiting factor, or whether there are additional flake shape and size drivers that remain unaccounted for. To try and circumvent these issues, here, we describe a shape analysis approach to assessing stone flake variability including a newly developed three-dimensional geometric morphometric method (‘3DGM’). We use 3DGM to demonstrate that a relationship between platform and flake body governs flake shape and size variability. Contingently, we show that by using this 3DGM approach, we can use flake platform attributes to both (1) make fairly accurate stone flake size predictions and (2) make relatively detailed predictions of stone flake shape. Whether conscious or instinctive, an understanding of this geometric relationship would have been critical to past knappers effectively controlling the production of desired stone flakes. However, despite being able to holistically and accurately incorporate three-dimensional flake variance into our analyses, the behavioural drivers of this variance remain elusive. 相似文献
94.
95.
Gas chromatography (GC), GC-mass spectrometry (GC-MS) and GC-combustion-isotope ratio MS (GC-C-IRMS) analyses of absorbed and surface lipid residues preserved in potsherds were used to explore the extent of pig product processing exploitation in the later British Neolithic Grooved Ware tradition. Assessments were made regarding whether porcine lipids were associated with specific Grooved Ware traits, i.e. decoration, substyle, geographical area and type of site. Two hundred and twenty-two Grooved Ware potsherds were analysed, 70% of which contained lipid concentrations considered significant (>5 μg g−1). All the lipid residues were dominated by animal fats, although plant and beeswax were also detected in a small number of extracts. δ13C values of the major fatty acid components of degraded animal fats (C16:0 and C18:0) were determined for 126 extracts and used to assign ruminant or porcine origins to the residues; 16% of these were found to have a predominantly porcine isotope signature. Statistical associations with pig exploitation were shown to exist with substyle, geographical area and site type, whereas, no relationship was seen between decoration and the type of commodity processed. Intact triacylglycerols were preserved in 19% of the sherds; half of these had distributions consistent with the identifications based on δ13C values, the remainder differed either due to the presence of mixed commodities or because lower molecular weight homologues had been lost due to degradation. In addition to the detection of pig exploitation, results from lipid residue analysis showed a good correlation with faunal assemblages, suggesting that stable isotope analysis may be used as a proxy for animal exploitation at sites where bones have not survived. 相似文献
96.
Alex Wilshaw 《African Archaeological Review》2016,33(1):13-27
East Africa is home to a rich array of stone-tool traditions that span human prehistory. It is unsurprising, therefore, that the region attracted pioneer prehistorians in the early twentieth century, including L. S. B. Leakey, E. J. Wayland and T. P. O’Brien, who created the first cultural framework for East African prehistory during the 1930s. Although aspects of this framework remain relevant today, others have become misunderstood relics of an old classification system that hinders current research. This is particularly evident in the classification of a Later Stone Age (LSA) culture – the Kenya (East African) Aurignacian, later known as Kenya (East African) Capsian. Although this cultural entity was redressed during the 1970s and 1980s and redefined as the Eburran industry, there is still mystique surrounding the current status of the Kenya Capsian, its original scope and definition, the relationship with the Eburran and its position within a modern understanding of the East African LSA. This is largely due to paradigmatic shifts in researcher attitudes, leading to the use of the Eburran as a false proxy. It is necessary now to completely remove the term Kenya Capsian as an indication of similarity among the different LSA technologies. However, there also needs to be less emphasis on the importance of the Eburran and recognition that it is just one example of a multitude of diverse localised LSA industries. This will open the way for future research into the LSA and facilitate our greater understanding of recent prehistory in East Africa. 相似文献
97.
Heather Burke Susan Arthure Cherrie de Leiuen 《International Journal of Historical Archaeology》2016,20(1):45-72
Are there traditions of folk ritual practice in Australian historical contexts, and are they observable in the archaeological record? Studies from the US and UK have documented a range of practices suggesting the persistence of British and European traditions of folk magic well into the twentieth century and previous historical work has identified numerous examples of ritual concealments in Australian buildings. In examining over 4,500 Australian historical archaeological sources, however, we found very few examples of possible folk ritual practices. This raises the question of why such practices are not being captured by current archaeological recording methods. As counterpoint, a general model is constructed from US, UK and Australian work that raises intriguing possibilities for the situating of superstitious behavior in Australian historical archaeology, including the contexts in which people might be more prone to practise such behaviors and how they might be materially identifiable. 相似文献
98.
Susan Piddock 《International Journal of Historical Archaeology》2016,20(3):562-573
This article considers the mid to late nineteenth-century world of the Fremantle Lunatic Asylum, Western Australia. By examining the built environment of the asylum and the uses of spaces within its walls, it is possible to understand not just the experiences of the inmates, but to highlight attitudes towards the insane. The asylum was built under authority of the British Government, and later transferred to the Western Australian Government’s care. Reflecting on this volume’s theme of colonial institutions, this article will highlight the effects of center and periphery relationships on life within the asylum. 相似文献
99.
Patricio López Isabel Cartajena Diego Carabias Carla Morales David Letelier Valentina Flores 《Archaeological and Anthropological Sciences》2016,8(2):277-290
Site GNL Quintero 1 (GNLQ1), located on the central coast of Chile, is the only documented Late Pleistocene drowned terrestrial site along the Pacific Coast of South America. Faunal evidence at the site is varied, and so far, remains of the following taxa have been found: extinct Camelidae, Cervidae, Equidae, Mylodontidae, Xenarthra, but also Myocastoridae, Canidae and Octodontidae. Both geological and paleoenvironmental data indicate that GNLQ1 developed in a floodplain or low-energy environment during the Last Glacial Maximum (LGM). Prior to the post-glacial rising of the sea level, the site would have been located several kilometres inland as the paleoshoreline was farther out on the continental shelf. In accordance with this background, the present study addresses the analysis of the spatial distribution of the bone deposits of GNLQ1 by considering both scenarios, the terrestrial phase related to the formation and modification of the fossil assemblage prior to the transgression, and the marine phase, subsequent to inundation. Results indicate modifications related to low-energy flow environment and carnivore activity dominated during the terrestrial phase and the action of marine organisms during the marine phase. Other taphonomic modifications are not easily attributable to either one or the other environmental context. 相似文献
100.
Christina Cheung Hannes Schroeder Robert E. M. Hedges 《Archaeological and Anthropological Sciences》2012,4(1):61-73
This study uses stable isotope analyses (δ13C and δ15N) of human bone collagen to reconstruct the diet of three Romano-British (first to early fifth century AD) populations from
Gloucestershire in South West England. Gloucestershire was an important part of Roman Britain with two major administrative
centres at Gloucester (Glevum) and Cirencester (Corinium) and numerous smaller settlements and farmsteads. To investigate
potential dietary differences between the rural and urban populations of Roman Gloucestershire, we compared human bone collagen
stable isotope values from 32 individuals from urban Gloucester with those of 46 individuals from two rural cemeteries at
Horcott Quarry and Cotswold Community, respectively. Seven individuals from urban Gloucester were buried in a mass grave;
all others were buried in single inhumations. Results show small but significant differences in stable isotope ratios between
the urban and rural populations which indicate that the urban population might have consumed slightly more marine and/or freshwater
resources than the people living in the rural communities. We interpret this difference as a direct reflection of Rome’s influence
on Gloucester’s population and the town’s economic status. Subtle differences in stable isotope ratios were also observed
at the site level, as burial practice does correlate with diet in some cases. Overall, the results from this study demonstrate
that diet, as reconstructed through stable isotope analysis, is a very sensitive, if settlement-specific, indicator of social
differentiation and culture change. 相似文献