The changing abundance of backed artefacts in south-eastern Australia: a response to Holocene climate change?

The timing of the introduction, proliferation and decline of backed artefacts in Australia has been much debated. In south-eastern Australia, after initially appearing at least 8500 years ago, backed artefacts greatly increased in number between 4000 and 3500 years ago to the extent that they are found in numerous sites and are recorded in large numbers in individual sites from that time. From about 1500 years ago they declined markedly in number and had seemingly disappeared by the time of British colonization. Models explaining their proliferation advance the proposition that increased backed artefact production was triggered by heightened foraging risk and/or social re-organisation brought about by a change in climate to a regime which was cooler and drier than any other time during the Holocene combined with intensified ENSO climatic conditions. Our study develops this hypothesis by inferring the use of backed artefacts at Mussel Shelter in the Sydney Basin through an integrated use-wear and residue analysis. These inferences provide new insights into the nature of the evolutionary changes in tool production and use in response to the period of altered climatic conditions.     

Taming Space: Drug use,HIV, and homemaking in Downtown Eastside Vancouver

This article explores ideas of home and place making that bear on the narrated realities of 14 women who are drug users living with HIV in Vancouver's Downtown Eastside. ‘Taming Space’ refers to the negotiations, transgressions and accommodations they make within particular spatial regimes. As residents of a ‘skid row’ district, research participants work to reconcile personal identities within representations of stigmatized space. As the subjects of epidemiological enquiry, clients of public health services and recipients of harm reduction initiatives, women both resist and acquiesce to the parameters of medicalized space. Housing and social service policies further demarcate spatial orders, especially framing women's options for mobility and homemaking. Finally, as street-involved persons they are subject to the often contradictory socio-spatial codes of street drug sociality. Drawing on the concept of turning points, I analyze the diverse narratives of these women as they flesh out particular dynamics of space and identity within broader structural contexts of colonialism, public health and poverty.     

Exploring the Use of Computer Vision Metrics for Spatial Pattern Comparison

Detection of changes in spatial processes has long been of interest to quantitative geographers seeking to test models, validate theories, and anticipate change. Given the current “data-rich” environment of today, it may be time to reconsider the methodological approaches used for quantifying change in spatial processes. New tools emerging from computer vision research may hold particular potential to make significant advances in quantifying changes in spatial processes. In this article, two comparative indices from computer vision, the structural similarity (SSIM) index, and the complex wavelet structural similarity (CWSSIM) index were examined for their utility in the comparison of real and simulated spatial data sets. Gaussian Markov random fields were simulated and compared with both metrics. A case study into comparison of snow water equivalent spatial patterns over northern Canada was used to explore the properties of these indices on real-world data. CWSSIM was found to be less sensitive than SSIM to changing window dimension. The CWSSIM appears to have significant potential in characterizing change and/or similarity; distinguishing between map pairs that possess subtle structural differences. Further research is required to explore the utility of these approaches for empirical comparison cases of different forms of landscape change and in comparison to human judgments of spatial pattern differences.     

‘Thinking of the land in that way’: indigenous sovereignty and the spatial politics of attentiveness at Skwelkwek’welt

Grassroots Secwepemc attempted to stop the expansion of Sun Peaks resort on a site for Indigenous knowledge. I attend to the practice of Indigenous knowledge related to the confrontation and assert that Indigenous sovereignty and identity were outcomes. To make this argument, I investigate the space made for emotion, affect and intuition in the performance of Indigenous knowledge. From a relational materialist position, these more-than-representational forces play an important role in epistemology, ontology, ethics, and subjectivity. Identity therefore materialized in three ways related to feeling(s). As a result of their attunement to these forces, the Secwepemc understood that (non)humans underpin their material being and placed the collective on the political horizon. Furthermore, the practice of Indigenous knowledge encouraged an identity characterized by “attentiveness” to feeling(s) and to the activity of feeling itself. From the perspective of the struggles of subjugated knowledge, I also contextualize the attentiveness at the core of Indigenous knowledge practices as part of a more-than-representational and decolonizing spatial politics.     

“The stone in the sling”: Frederick Douglass and Belfast abolitionism

Frederick Douglass’s sojourns in Belfast during 1845–1846 coincided with the “Send Back the Money” controversy in the Free Church of Scotland over the receipt of money from and fellowship with slaveholders, the South Carolina minister Thomas Smyth’s exclusion from the Presbyterian General Assembly in 1846, and the aftermath of the debate at the inaugural meeting of the Evangelical Alliance over fellowship with slaveholders. Since Douglass regarded Belfast as the central location of Presbyterian sympathy for the Free Church outside of Scotland, he believed that the town was crucial in the crusade against the Free Church. The attacks on the Free Church, however, cost the Belfast Anti-Slavery Society considerable support in the long term. Belfast also played a role in the personal development of Douglass. His dispute with his Dublin publisher, Richard Davis Webb, over the ministers’ recommendations to his Narrative constituted evidence of growing maturity. Although William Lloyd Garrison united with Douglass in Belfast to denounce the Evangelical Alliance, this essay argues that Douglass displayed evidence of independence from strict Garrisonianism.     

Teotihuacan pottery as evidence for subsistence practices involving maguey sap

As in most other pre-industrial cities, urban life at Teotihuacan was closely intertwined with ceramic technology, perhaps nowhere more so than in the realm of foodways. Here, we use two kinds of information derived from ancient pottery—ceramic residues and intra-site sherd distribution patterns—to shed new light on the city’s subsistence economy. We concentrate in particular on the amphora, a type of vessel that may have been used to contain aguamiel and pulque, liquid foodstuffs made of maguey sap. Distributional data distilled from surface collections of the Teotihuacan Mapping Project are informative about patterned variation in the use of these pots at the scale of the entire city. More focused analyses are aimed at chemical characterization of organic residues preserved in ceramic sherds recovered from recent excavations. Part of a broader project aimed at identifying both animal and plant remains, the results of the residue analysis provide the first direct identification of pulque remains in Teotihuacan pottery.     

Metropolitan Scurvy in the Shadow of the Cook Voyages

Recent scholarship on scurvy in 18th-century Britain has focused on the disease in the context of voyages of exploration, especially those bound for the Pacific Ocean. Using materials from quack physicians, print culture and popular song, this essay contends that the problem of scurvy was just as acute in metropolitan London and elsewhere in Britain. By studying representations of the disease and its markets at home in Britain, it aims to shed new light on the treatment and perception of the disease at sea, particularly during the voyages of James Cook (1768?79).