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This paper explores the impact of animal manure application on the δ15N values of a broad range of crops (cereals and pulses), under a range of manuring levels/regimes and at a series of locations extending from northwest Europe to the eastern Mediterranean. We included both agricultural field experiments and areas where ‘traditional’ farming is practised. Our aim is to ground-truth interpretation of δ15N values in archaeobotanical crop remains as evidence of past growing conditions and husbandry practices. The results confirm the potentially radical impact of manuring on δ15N values in cereals, depending on manuring level, but indicate only a slight effect on pulses, which can fix atmospheric nitrogen. The expected geographical trend towards greater δ15N with increasing climatic aridity is not apparent, probably because the growing conditions for crops are ‘buffered’ through crop management. Each of these observations has fundamental implications for archaeobotanical interpretation of δ15N values as evidence of land use practices and (together with analysis of bone collagen/tooth enamel in potential consumers) palaeodiet.  相似文献   
43.
Nancy Fraser 《对极》2010,41(Z1):281-297
Abstract: Who counts as a subject of justice? Not so long ago, it was widely assumed that those “who counted” were simply the citizens of a bounded territorial state. Today, however, as activists target injustices that cut across borders, that “Westphalian” view is contested and the “who” of justice is an object of hot dispute. This new situation calls for a new kind of justice theorizing, whose contours I sketch in this essay. Arguing, first, for a reflexive mode of theorizing, I introduce the concept of “misframing”, which can subject the Westphalian “who” to critical scrutiny. Arguing, second, for the necessity of a substantive normative principle to evaluate competing “who’s”, I introduce the “all‐subjected principle” as superior to three better known alternatives: namely, membership, humanism, and the all‐affected principle.  相似文献   
44.
This paper charts the attempts to construct an international map of the world using a standard projection and common conventions and symbols. The first part of the paper discusses the original incarnation of this idea, the International (1:1 Million) Map of the World (IMW), initially proposed by the German geographer Albrecht Penck in the early 1890s. The IMW was designed to challenge the idea that cartography was an inherently national science undertaken by, and for, specific nation states. Despite endless negotiations, delays and compromises, two world wars and the withdrawal of American support, the IMW project continued through the early and middle decades of the twentieth century, initially at the British Ordnance Survey and subsequently at the United Nations, only to fizzle out in the 1970s. The second part of the paper examines the Global Mapping Project (GMP), the latest manifestation of the same idea. Global Map, the first version of which was released in 2000, is an attempt to construct a single world map for the digital age. Like the IMW before it, Global Map is designed to facilitate a common, trans-national understanding of global problems. However, the technical, institutional and application challenges facing the GMP are different from those that confronted the IMW. Whereas the primary purpose of the IMW was never consistently defined, Global Map has a clearer environmental and educational objective. But if Global Map is to become an effective tool for sustainable environmental management and development, its advocates will need to learn the lessons of the IMW's failure and secure renewed international commitment to the value of international mapping.  相似文献   
45.
Fraser Sugden 《对极》2019,51(5):1600-1639
This paper engages with the long‐running debate on the transition from farm‐based livelihoods to capitalism in the context of labour migration. Tracing the historic evolution of modes of production in the peripheral Mithilanchal region of the Eastern Gangetic Plains, it notes how the economic processes which are today driving the peasantry into the labour force through migration are not directly connected to the process of capitalist accumulation in the diverse locales where labour is employed, as is somtimes implied in the research on classic situations of “accumulation by dispossession”. The entry of the peasantry into the surplus labour pool is instead linked firstly, with a complex convergence of internal changes within a non‐capitalist feudal mode of production on an economic, cultural and political level, and secondly, with the stresses brought about in the wake of expanding capitalist markets. The paper notes however that migrant labour still generates substantial profits for capitalism with a sharing of surplus between the latter, and landlord‐money lenders. It argues that the relationship between modes of production in this context, is neither functional nor coincidental, and is linked instead with larger – at times opportunistic – class alliances which have evolved to fit the current political‐economic conjuncture.  相似文献   
46.
In 966, by the end of the reign of its third duke, Richard I, Normandy had overcome the crises that had beset it in the middle of the century. Much of this success came from the coherence of its ruling group, which expressed itself partly in terms of ‘Norman’ identity. This article uses Dudo's history of the dukes and Richard's charters to argue that ‘Norman’ as a political identity was a deliberate creation of the court of Richard I in the 960s, following the perceived failure of his and his father's policies of assimilation into Frankish culture.  相似文献   
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Sherds from pots found layered under a granite boulder in the Tong Hills of the Upper East Region of Northern Ghana seem, based on their deposition context to have been used for the preparation of medicines. Organic geochemical and isotopic analyses of these sherds and a modern day analogue reveal an n-alkanoic acid composition that is consistent with their being used in the preparation of plant derived substances. Isotopic analyses of the modern medicine pot indicate a contribution of n-alkanoic acids derived from plants that use C4 carbon fixation, most likely maize, sorghum and/or millet suggesting that this pot was used for cooking C4 based plant substances, perhaps, based on current analogy, staple porridge type food. The modern medicine pot could thus have had a prior use. The absence of C4 plant residues in the archaeological sherds suggests that either staple foodstuffs differed radically to today, or, more likely, were not prepared in vessels that were to be used for medicinal purposes.  相似文献   
49.
Politics is usually seen as a second career and many elite studies include details of the background of MPs and draw conclusions from that data. But Australian politicians appear to be entering politics, reaching the ministry and retiring at younger ages. This article explores the accuracy of these perceptions for Australian federal politics and explores some of the implications of politics becoming a first career.  相似文献   
50.
This paper presents a method of quantifying variation in quality in an amenity as a component of an hedonic property amenity valuation. The paper considers the residential land amenity of an ocean view, a situation where there is typically substantial variation in the quality of the view between sites. The method is effectively a scoring system based on three sub-characteristics of the ocean view. It is illustrated by application to a coastal housing subdivision in Western Australia. The results provide an estimate of the increase in the sale price of a site attributable to the quality of the site’s ocean view. The method has a potential role in coastal land use management decisions.  相似文献   
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