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1.
The reconfiguration of food as a pharmaceutical in biomedical regimes has been considered by scholars along two axes: (1) food supplementation as humanitarian intervention, based on a specific value of life and delivered in ‘crisis’ situations with a short temporal horizon; (2) food supplementation as commodity, marketed as enhancing ‘wellness’ or potential, based on notions of risk in broad temporal frames. We consider nutraceuticals and ready‐to‐use‐therapeutic foods as they are deployed by state and commercial actors in South Africa in relation to two key figures: the pregnant woman and the HIV‐positive population. These biopolitical expressions of post‐apartheid regimes of knowledge, care and governance reveal how state distribution and the corporate marketing of supplements employ a future‐oriented logic that appeals to notions of power, energy and potential. Therapeutic foods in this context are thus not merely humanitarian technologies that reconfigure crisis as a chronic condition – the temporary becoming permanent – but are premised on new potentialities, in which the temporary may (re)shape the future.  相似文献   

2.
Recently, several accessibility measures using the space–time prism concept have been suggested in the literature. These measures fail to take into account (i) the ability of individuals to adjust their activity–travel patterns in coping with constrained choice sets, (ii) uncertainty in the perception of travel times, (iii) temporal variability of travel times, and (iv) the influence of travel information on accessibility. The aim of the present article is to contribute to this literature by addressing these four shortcomings. Theory will be developed and illustrated using numerical simulations. The results suggest that the accessibility measure proposed in this article is a useful indicator of social inclusion in terms of the time individuals can spend to conduct their preferred activities. Moreover, accessibility is found to be affected by the presence of schedule delay penalties, restrictions in time allocation to activities, and the provision of travel time information in order to reduce uncertainty.  相似文献   

3.
There exist a variety of tests for attraction and repulsion effects between spatial point populations, most notably those involving either nearest‐neighbor or cell‐count statistics. Diggle and Cox (1981) showed that for the nearest‐neighbor approach, a powerful test could be constructed using Kendall's rank correlation coefficient. In the present paper, this approach is extended to cell‐count statistics in a manner paralleling the K‐function approach of Lotwick and Silverman (1982). The advantage of the present test is that, unlike nearest‐neighbors, one can identify the spatial scales at which repulsion or attraction are most significant. In addition, it avoids the torus‐wrapping restrictions implicit in the Monte Carlo testing procedure of Lotwick and Silverman. Examples are developed to show that this testing procedure can in fact identify both attraction and repulsion between the same pair of point populations at different scales of analysis.  相似文献   

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This study proposes a new quadrat method that can be applied to the study of point distributions in a network space. While the conventional planar quadrat method remains one of the most fundamental spatial analytical methods on a two‐dimensional plane, its quadrats are usually identified by regular, square grids. However, assuming that they are observed along a network, points in a single quadrat are not necessarily close to each other in terms of their network distance. Using planar quadrats in such cases may distort the representation of the distribution pattern of points on a network. The network‐based units used in this article, on the other hand, consist of subsets of the actual network, providing more accurate aggregation of the data points along the network. The performance of the network‐based quadrat method is compared with that of the conventional quadrat method through a case study on a point distribution on a network. The χ2 statistic and Moran's I statistic of the two quadrat types indicate that (1) the conventional planar quadrat method tends to overestimate the overall degree of dispersion and (2) the network‐based quadrat method derives a more accurate estimate on the local similarity. The article also performs sensitivity analysis on network and planar quadrats across different scales and with different spatial arrangements, in which the abovementioned statistical tendencies are also confirmed.  相似文献   

6.
This paper looks at the politics of surfaces, and the practices of veiling (and unveiling) and of white men wearing blackface in counter‐insurgency efforts in post‐war Africa. The sten gun beneath the veil, the unveiled woman with a bomb in her handbag and the counter‐gangs masquerading as African guerillas all embody specific kinds of violence; they also embody a political imaginary in which racial and cultural lines are more fluid than previous studies of these periods suggest; indeed, they raise questions about what makes a race, a gender or a regiment: are racial and national categories learned, mimicked, or are they literally skin deep? My question, however, is not why do people dress up as guerillas or as Western women to wreak havoc on their enemies, but how historians of post‐war Africa might understand such actions. To this end I want to read accounts of counter‐insurgency, Fanon's famous essay, the memoirs of British soldiers in Kenya and Rhodesian soldiers in Rhodesia and some of the volumes of Rhodesian wartime fiction through the lens of transgender literature, looking at how various crossings, and the multiple markers thereof, shed light on broader issues of hierarchy, race and gender at the time of decolonisation.  相似文献   

7.
Geostatistical Prediction and Simulation of Point Values from Areal Data   总被引:2,自引:0,他引:2  
The spatial prediction and simulation of point values from areal data are addressed within the general geostatistical framework of change of support (the term support referring to the domain informed by each measurement or unknown value). It is shown that the geostatistical framework (i) can explicitly and consistently account for the support differences between the available areal data and the sought-after point predictions, (ii) yields coherent (mass-preserving or pycnophylactic) predictions, and (iii) provides a measure of reliability (standard error) associated with each prediction. In the case of stochastic simulation, alternative point-support simulated realizations of a spatial attribute reproduce (i) a point-support histogram (Gaussian in this work), (ii) a point-support semivariogram model (possibly including anisotropic nested structures), and (iii) when upscaled, the available areal data. Such point-support-simulated realizations can be used in a Monte Carlo framework to assess the uncertainty in spatially distributed model outputs operating at a fine spatial resolution because of uncertain input parameters inferred from coarser spatial resolution data. Alternatively, such simulated realizations can be used in a model-based hypothesis-testing context to approximate the sampling distribution of, say, the correlation coefficient between two spatial data sets, when one is available at a point support and the other at an areal support. A case study using synthetic data illustrates the application of the proposed methodology in a remote sensing context, whereby areal data are available on a regular pixel support. It is demonstrated that point-support (sub-pixel scale) predictions and simulated realizations can be readily obtained, and that such predictions and realizations are consistent with the available information at the coarser (pixel-level) spatial resolution.  相似文献   

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This article examines the reception of revivalism inspired by the work of Dwight Moody and Ira Sankey in the Wanganui‐Manawatu region of New Zealand in the 1870s and 1880s. The success of Moody and Sankey's 1873–75 British campaign inspired interest in revivalism, and led to rapid and widespread adoption of their distinctive methods. Though it aroused opposition in some quarters, Moody and Sankey style revivalism became established as a significant feature of New Zealand religiosity at that time. Some aspects continued to appeal well into the twentieth century. This article traces the rise and growth in influence of this form of revivalism, and considers reasons for its appeal in late nineteenth‐century New Zealand.  相似文献   

10.
This article argues that the classical distinction between civic and ethnic forms of national identity has proved too schematic to come to terms with the dynamic nature of social and political processes. This has caused difficulties particularly for those historians and social scientists studying particular national movements rather than concentrating on a handful of thinkers and intellectuals or taking a broadly comparative approach. As an alternative to the classical model, I propose to distinguish between, on the one hand, the mechanisms which social actors use as they reconstruct the boundaries of national identity at a particular point in time; and, on the other, the symbolic resources upon which they draw when they reconstruct these boundaries.  相似文献   

11.
This contribution to the Forum Debate on global development focuses on the dimension of functional income distribution between labour and capital and its demand‐side and supply‐side effects. The article summarizes recent literature that has sought to explain the reasons behind the global fall in the labour share. It then discusses the demand‐side effects of the declining wage share on growth, based on the post‐Keynesian/post‐Kaleckian literature. The author presents an alternative policy scenario for the G20 based on a mix of increasing wage share and public investment, before discussing the supply‐side effects of rising inequality. The article concludes with some policy implications for equality‐led development.  相似文献   

12.
This article argues that measures designed to improve the availability and accessibility of information as a key strategy to facilitate development have become ends in themselves, de‐linked from their potential to have an impact on Southern knowledge systems that may lead to improved development outcomes. The production and dissemination of ever‐greater volumes of information in response to concerns about the uneven availability of information, particularly for individuals and intermediaries based in the global South, are unable to address the persistent problem of the fragmentation of knowledge systems that result from knowledge for development (K4D) initiatives in which information and knowledge are treated as isolated entities. The article presents the findings of a study into the K4D practices of a network of women/gender information intermediaries. It reveals that attempts to strengthen Southern knowledge systems are forestalled by efforts that merely improve the supply of information rather than engaging with knowledge processes in their entirety, thus limiting their potential to promote improved development outcomes. Proxy measures of success are used that fail to challenge the typically neoliberal underpinnings of the dominant knowledge infrastructure. The author concludes that, if knowledge‐based development interventions are to be made more effective, K4D stakeholders need to find ways to engage not just with the supply but with the demand for information, as part of broader efforts to strengthen entire knowledge systems in ways that take account of concerns around hegemony.  相似文献   

13.
Carters’ Barracks and Point Puer were the first attempts at creating a prison institution specifically for the growing number of juvenile male transportees who were being sent to the Australian colonies. Beyond the structures and regulations of the institutions, this article seeks to examine the ways in which the boys’ understanding of masculinities shaped their relationships with prison authorities and within the juvenile prison community.  相似文献   

14.
High‐sulfidation vein gold deposits such as El Indio, Chile, formed in fracture arrays <1000 m beneath paleo‐solfatara in volcanic terranes. Stable isotope data have confirmed a predominance of magmatic vapor during the deposition of arsenic‐rich sulfide–sulfosalt assemblages in this deposit. These provide a unique opportunity to analyze the processes and products of high‐temperature volcanic gas expansion in fractures that form the otherwise inaccessible infrastructure deep inside equivalent present‐day fumaroles. We provide field emission scanning electron microscope and LA‐ICP‐MS micro‐analytical data for the wide range of heavy, semi‐metals and metalloids (arsenic, antimony, bismuth, tin, silver, gold, tellurium and selenium) in the complex pyrite‐enargite‐Fe‐tennantite assemblages from Copper Stage mineralization in the El Indio deposit. These data document the progressive fractionation of antimony and other heavy metals, such as bismuth, during crystallization from a sulfosalt melt that condensed from expanding vapor at about 15 MPa (150 bars) and >650°C following higher temperature vapor deposition of crystalline pyrite and enargite. The sulfosalt melt aggressively corroded the earlier enargite and pyrite and hosts clusters of distinctive euhedral quartz crystals. The crystallizing sulfosalt melt also trapped an abundance of vugs within which heavy metal sulfide and sulfosalt crystals grew together with K‐Al silicates and fluorapatite. These data and their geologic context suggest that, in high‐temperature fumaroles on modern active volcanoes, over 90% of the arsenic content of the primary magmatic vapor (perhaps 2000 mg kg?1) was precipitated subsurface as sulfosalt. Subsurface fractionation may also account for the range of exotic Pb‐Sn‐Bi‐Se sulfosalts observed in fumarole sublimates on active volcanoes such as Vulcano, Italy, as well as on extra‐terrestrial volcanoes such as Maxwell Montes, Venus.  相似文献   

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16.
Biography as a genre of historiography had been dismissed for some years, criticized for being conservative, resistant to theoretical approaches, and hostile to methodological innovations. But the predominance of a historiography devoted to structures, functions, and statistics has, however, led to a renewed interest in the human factor in history. This paper argues that the pluralism of methods and theories which has emerged thereafter reopened the case for an innovative biography, thus facilitating the convergence of general history and the history of science.  相似文献   

17.
Iconic news photographs, particularly those taken during wars and national crises, provide visual synopses of important historical events – events about which stories of triumph and tragedy are superimposed. In this paper, we systematically trace the appearances and discussions of a single, iconic image, given the moniker Face to Face, over time. In the twenty plus years since its initial publication, media discourses around the image referenced Kanien'kehaka /Mohawk, Indigenous, Quebecois and Canadian nationalisms. We conclude that discourses surrounding war and conflict imagery can be read as reflecting plural nationalisms and that while a dominant meaning can be projected onto such imagery, this is neither singular nor fixed.  相似文献   

18.
Introducing a new theoretical category in religious studies, “ritual practice of time,” this essay constitutes an analysis about rituals of the structure of space and time of the Aztec fifty‐two‐year calendar in Mesoamerica. Time and space, completed and exhausted at the termination of the fifty‐two‐year cycle, had to be symbolically renewed and recreated in a fifty‐two‐year ritual. Challenging the view held by numerous Mesoamericanists, I demonstrate that the ritual practice of time of the related 365‐day calendar (“New Year ritual”) was not spatio‐temporal in a horizontal quadripartite manner. Given that only one world or cardinal direction of the world was ritually observed, a symbolic re‐enactment of the creation myth could not be executed since it would take four consecutive “New Year rituals” of four years to symbolically define the quadripartite earth. Conversely, the fifty‐two‐year ritual (and the 260‐day ritual) could, in principle, have this very significant meaning and function.  相似文献   

19.
As part of a research project on medieval trade and maritime transportation in the former Norwegian province of Bohuslän, western Sweden, a dendrochronological analysis of the so‐called Mollö cog was undertaken. The wreck, which was first salvaged in 1980, was previously dated by 14C analysis. Since this provided a nearly 400‐year time‐span for the building of the vessel, a more precise dating was considered essential. In conjunction with dendrochronological sampling, several features not previously reported were recorded. This paper presents the find, the research history and the results of the dendrochronological investigation. © 2012 The Authors  相似文献   

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