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This essay examines how and why historiography—defined to mean the study of the history of historical writing—first emerged as a legitimate subject of historical inquiry in the United States during the period from 1890 to the 1930s by focusing on the practice of historiography by three of the most influential American historiographers whose work spans this period: J. Franklin Jameson, John Spencer Bassett, and Harry Elmer Barnes. Whereas the development of historiography as a field of study signified a recognition that historians and historical writing are themselves products of the historical process, American historiographers in this period at the same time used historiography to further a scientific ideal of objectivity that was premised on the belief in the ability of historians to separate themselves from that process. Modern scholars (notably, Peter Novick) have attributed to scientific historians like Jameson and Bassett a simplistic and naive positivism; but the ability of these historiographers to recognize the subjective character of historical writing and yet affirm a belief in objectivity reveals that their understanding of historical truth was more complex than modern scholars have acknowledged. In turn, by questioning the belief that the historical profession was originally founded on a naïve faith in the ideal of objective truth, I demonstrate that New Historians like Barnes were more similar to their predecessors, the scientific historians, than they (or later scholars) acknowledged. Thus, rather than portraying the shift from scientific history to the New History as a linear trajectory of development from objectivity to a more relativist viewpoint, I argue that New Historians like Barnes at once expressed a greater recognition than his scientific predecessors of how historical writing was the product of its context, while still insisting on his commitment to an ideal of objectivity that divorced the historian from that context.  相似文献   
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‘Consumption’ is a central concept in the global environmental sustainability agenda. However, one important argument from Agenda 21 — that all social actors must now practise ‘sustainable consumption’— has been publicly and politically marginalised in high‐income countries such as Australia. Geographers potentially have a role in bringing consumption back onto the agenda by constructing a critical geography of consumption. Such research can help understand how the contextual use of natural resources is perceived and practised, and how consumption helps to shape contemporary social relations. This body of knowledge is vital for building sustainable development into everyday lives. Yet a focus on urban consumption perceptions and practices appears somewhat lacking in Australian geography. Ways forward can be drawn from international geography, such as in the United Kingdom where a substantial body of work has drawn a complex picture of contemporary consumption and environmental understanding. It has also challenged prevailing ‘ecological modernisation’ policy approaches, which ignore consumption's cultural facets. In sum, considering consumption in Australia can offer insights into cultural practices expressed through consumption; can challenge and add to European geographical literatures, and can also contribute to sustainability debates by offering alternatives to currently ineffective policy discourses.  相似文献   
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Intra‐individual variations in carbon (δ13C) and nitrogen (δ15N) isotope measurements of dentine collagen in ungulate teeth can be related to diet and environmental changes at different periods during the life of the animal. A protocol of serial sampling of first, second and third molar roots was applied to modern caribou (17–27 months old) of the Qamanirjuaq herd (Rangifer tarandus groenlandicus), Canada. Based on a previous study, we predicted that M2 would reflect winter, M3 summer and M1 a complete year in terms of the isotopic record. Relatively high δ15N values (ca. 6 to 8‰), previously attributed to winter stress, were found in different molars of different specimens, reflecting a period of growth between April 1966 to April 1967. Previous results on other teeth from the same population confirmed that a high δ15Ncoll value signal corresponded to the winter of 1966/67. This temporary increase in δ15N value was probably linked to diet and/or environmental change. Collagen from M1 reflects the first winter whereas M2 and M3 reflect the second winter of life of young caribou. A longer time record including summer is represented by the bone collagen of the mandible. Results obtained on molar roots and mandible bone of the modern caribou of Banks Island herd (Rangifer tarandus pearyi) confirmed this seasonal record. Such collagen isotopic analysis on M1, M2 and M3 roots and jawbone can be applied to reindeer found in archaeological sites. Mandibles retaining deciduous premolars are preferable to avoid the possible loss of the winter tooth signal observed in animals older than 2 years. Copyright © 2010 John Wiley & Sons, Ltd.  相似文献   
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Human geographers have explored at some length the discourses and subject positions implicated in the recent rise of ‘environmental responsibility’. Assigning it either as an individual disposition enacted in various spaces, a performative ‘othering’ tool, and/or a form of ecological governmentality, these debates have said little about the role of research and researchers in encouraging environmental responsibility. Utilising arguments from William James’ ‘radical empiricism’, I argue that exploring practices through a pragmatist lens enables a tentative re-envisioning of environmental responsibility. Re-visiting my doctoral research into the household-level adoption of sustainable consumption practices, I claim environmental responsibility as an ethical experience felt at the moments when practices are reconsidered. Here, my presence played a vital role in this social experimentation, which, as pragmatists argue, is the fundamental basis of positive social change.  相似文献   
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Pre‐Romanesque murals at Kosto?any pod Tríbe?om, Slovakia, have been investigated by portable X‐ray fluorescence and by microanalytical methods to identify painting materials (pigments and binders), and to explain the degradation of colours. Today, missing green and blue shades have been reconstructed according to residual concentrations of Cu, which correspond to copper chlorides—products of salt corrosion of the copper carbonates azurite and/or malachite, accelerated by micro‐organisms. As confirmed by powder X‐ray microdiffraction, original minium (Pb3O4) has been transformed to brown–black plattnerite (PbO2). In increased humidity, even insoluble pigments are washing down from the walls and the intensity of colours further diminishes.  相似文献   
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This paper shows how visual analytics methodology can be used to facilitate interpretation of multi‐temporal thermographic imagery for the purpose of restoration of cultural heritage. We explore thermographic data in a visual environment from the unifying spatio‐temporal perspective in an attempt to identify spatial and spatio‐temporal patterns that could provide information about the structure and the level of decay of the material, and the presence of other physical phenomena in the wall. The approach is tested on a thermographic dataset captured on the façade of a Romanesque building from the 13th century—the Cathedral in Matera (Italy).  相似文献   
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While the most famous historical green earth deposits in Italy and Cyprus were exceptionally rich in celadonite, the deposits near Kadaň, Czech Republic, consisted of thin Fe‐rich celadonite impregnations accompanied by interstratified celadonite/smectite. In superimposed tuffs, smectites become prevalent and their colour changes from forest to olive green. Powder X‐ray microdiffraction and infrared microspectroscopy permit us to distinguish between green earth minerals in microsamples taken from works of art. The Ti contents and the Fe/Mg ratios help to indicate the presence of Bohemian green earth from Kadaň. We found this material in local 18th‐century works of art and also in paintings by Anton Kern (1709–47).  相似文献   
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