排序方式: 共有83条查询结果,搜索用时 31 毫秒
11.
12.
Erwan Messager Aïcha Badou François Fröhlich Brigitte Deniaux David Lordkipanidze Pierre Voinchet 《Archaeological and Anthropological Sciences》2010,2(1):25-34
Mineralised fruits and seeds are frequently found in archaeological sediments but their chemical nature has not been often
examined. The nature and the origin of these archaeobotanical remains have to be investigated to understand their taphonomic
history. Fruits or seeds can be mineralised not only by replacement mineralisation but also by biomineralisation during the
plant life. The mineral components of three fossil fruits sampled on the Pleistocene site of Dmanisi were analysed and compared
with their modern analogues. Analyses were carried out by means of an environmental scanning electron microscope, equipped
with an energy dispersive X-ray device and by means of a Fourier transform infrared spectrometer. Biogenic carbonates and/or
biogenic silica were identified in the fossil and modern fruits of some taxa. Comparison between fossil and modern specimens
has shown that molecular reorganisation occurred in carbonate and in biogenic silica during fossilisation, through diagenetic
processes. The resulting stable mineral structures confer an exceptional preservation to fruits in sediments. Taking into
account these taphonomic specificities (transformation and differential preservation), the chronological and palaeoenvironmental
aspects of the mineralised fruits are discussed. 相似文献
13.
Dong Hoon Shin Chang Seok Oh Taeeun Chung Yang Su Yi Jong Yil Chai Min Seo 《Journal of archaeological science》2009,36(11):2534-2539
We conducted a paleo-parasitological study on soil samples from the ancient moat ruins of Weolseong palace, of the Silla Dynasty (BC 57–AD 935) of Korea. Based on the cultural remains found in the mud-soil layer, the layer was precipitated onto the floor of a moat between the 5th and 8th centuries AD. We found Trichuris trichiura eggs only in that mud-soil layer, whereas no parasite eggs were identified in the other archaeological strata of the ruins. As T. trichiura eggs are shed only in human feces, we speculated that palace toilet contents were continually drained into the moat; therefore, at a certain point in time after construction, the moat finally became a ditch around the palace. Structures in the stone embankments of the moat, possibly designed to make the water flow continuously in one direction, might reflect the Silla people's efforts to alleviate the ever-increasing problems inherent in a moat. 相似文献
14.
In this paper, we studied the thermal history of a clay core sample from one leg of a bronze tripod unearthed at Daxinzhuang Site, Shandong, China. The properties of the luminescence signals of quartz depend on the maximum temperature at which the quartz was annealed in the past. We examined the feasibility of measuring the thermoluminescence (TL) sensitivity change of quartz for exploring the firing temperature of archaeological materials. The sensitization factor of the 110°C TL peak (S2/S1) and the ratio of the 210°C TL peak to the 110°C TL peak at different annealing temperatures were utilized to unveil the firing temperature in the clay core sample. The firing temperature of the clay core sample was approximately 700°C–800°C, proving the clay core has been fired. This result proved that the clay core has been fired by human agencies and indicated on the temperature of the clay core in drying and firing given by the foundry workers before the actual casting step. 相似文献
15.
16.
17.
Engendering the New Enclosures: Development,Involuntary Resettlement and the Struggles for Social Reproduction in Coastal Tanzania
下载免费PDF全文
![点击此处可从《Development and change》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Youjin Brigitte Chung 《Development and change》2017,48(1):98-120
This article engages with the feminist concept of ‘social reproduction’ to arrive at a richer understanding of the gendered processes and outcomes of contemporary large‐scale land acquisitions, or the ‘new enclosures’. It focuses on the case of a recent land deal for industrial sugarcane production in the Coast Region of Tanzania and the resultant process of involuntary resettlement. It critically analyses people's struggles for land in the face of imminent displacement, and the gendered ways they experience the erosion of their pre‐existing modes of social reproduction. It argues that enclosure of rural landscapes does more than immediately strip peasants and pastoralists of their means of production and turn them into wage labourers. It gradually uproots them from their socio‐ecological knowledges, cultural practices and historical memories, which are rooted on the land and articulated through gender. The highly uncertain processes of enclosure and displacement also force rural women and men to renegotiate their livelihood strategies and intra‐household gender relations. 相似文献
18.
Brigitte Derlon Monique Jeudy‐Ballini 《Oceania; a journal devoted to the study of the native peoples of Australia, New Guinea, and the Islands of the Pacific》2010,80(2):129-142
ABSTRACT Gell's Art and Agency that aimed to articulate the first anthropological theory of art has achieved a near‐cult status among the academic community. Departing from previous semiological and aesthetic approaches, this theory takes it that art is a form of instrumental action, the canonical efficacy of which lies in its power to function as a cognitive trap and to captivate the spectator's mind. In this article it is argued that Gell's theory is not as novel as it is claimed; that it fails to define the specific field of art; and that by excluding the aesthetic properties of art objects, it discards ethnographical data nonetheless necessary for understanding the agency of art in Melanesian local cultures. At a meta‐level, Gell assigned to his theory the same captivating purpose as he did to art, and this probably explains the seductive fascination that his work continues to exert. 相似文献
19.
20.