56 research outputs found
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The Archaeology of Jemez Resistance and Revitalization in the Pueblo Revolt Era
Anthropolog
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The Innovative Materiality of Revitalization Movements: Lessons from the Pueblo Revolt of 1680
Although Wallace’s revitalization movement model has been successfully utilized in scores of ethnographic and ethnohistorical studies of societies throughout the world, revitalization is considerably less well-documented in archaeological contexts. An examination of the materiality of revitalization movements affords an opportunity to redress this lack by investigating how material culture creates and constrains revitalization phenomena. In this article I reconsider the revitalization model through a case study focusing on the archaeology of the Pueblo Revolt of 1680, emphasizing the central role of materiality in the formation and mediation of these movements. In doing so, I examine the archaeological signatures of revitalization movements, concluding that they are highly negotiated and heterogeneous phenomena and that the materiality of these episodes cultivates cultural innovation. I also seek to demonstrate that the distinctive types of material culture produced through revitalization are not epiphenomenal but, rather, are crucially constitutive of revitalizing processes.Anthropolog
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The Battle of Astialakwa: Conflict Archaeology of the Spanish Reconquest in Northern New Mexico
Anthropolog
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The Archaeology of the Pueblo Revolt and the Formation of the Modern Pueblo World
The Pueblo Revolt and its aftermath (AD 1680-1696) was a crucial period in the history of the American Southwest. Previous studies of this era have focused primarily on the causes of the Revolt, often casting it as an isolated and anomalous event. This article takes a different approach, investigating the effects of the Revolt era on Pueblo cultures and communities in the years, decades, and centuries that followed the uprising of 1680. Recent archaeological research on ancestral Keres and Jemez villages in the northern Rio Grande reveals evidence for cultural revitalization and ethnogenesis in the wake of the Revolt. The long-term implications of Revolt-era diaspora and migration are also reviewed, as well as the role of memory and oral traditions of this tumultuous period in the formation of modern Pueblo cultures and communities.Anthropolog
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The Mickey Mouse Kachina and Other "Double Objects": Hybridity in the Material Culture of Colonial Encounters
Hybridity is a term used by anthropologists to characterize the amalgamation of influences from two (or more) different cultural groups. Hybridity has captivated archaeology in recent years, especially archaeologists investigating colonialism in Native American contexts. At the same time, a growing chorus of critics has begun to question anthropology’s devotion to hybridity and hybrid objects. These critics take issue with the term’s alleged Eurocentrism, implications of cultural purity, and evolutionary etymology. In this article I address these critiques and advocate a more circumscribed use of hybridity in archaeology. I caution against the abandonment of the term entirely, because the archaeological identification of hybridity provides insights into both present-day (etic) and past (emic) perspectives on cultural amalgamation. Hybridity reveals the biases of contemporary researchers regarding the societies we study, as well as highlighting the ways in which power structures centered and marginalized colonial subjects in the past. To illustrate these points I draw on case studies involving the Hopi Mickey Mouse kachina, eighteenth- and nineteenth-century Indigenous-colonial whips from the American Plains and southeast Australia, and seventeenth-century Pueblo ceramics from the American Southwest.Anthropolog
Fire Suppression Impacts on Fuels and Fire Intensity in the Western U.S.: Insights from Archaeological Luminescence Dating in Northern New Mexico
Here, we show that the last century of fire suppression in the western U.S. has resulted in fire intensities that are unique over more than 900 years of record in ponderosa pine forests (Pinus ponderosa). Specifically, we use the heat-sensitive luminescence signal of archaeological ceramics and tree-ring fire histories to show that a recent fire during mild weather conditions was more intense than anything experienced in centuries of frequent wildfires. We support this with a particularly robust set of optically stimulated luminescence measurements on pottery from an archaeological site in northern New Mexico. The heating effects of an October 2012 CE prescribed fire reset the luminescence signal in all 12 surface samples of archaeological ceramics, whereas none of the 10 samples exposed to at least 14 previous fires (1696–1893 CE) revealed any evidence of past thermal impact. This was true regardless of the fire behavior contexts of the 2012 CE samples (crown, surface, and smoldering fires). It suggests that the fuel characteristics from fire suppression at this site have no analog during the 550 years since the depopulation of this site or the 350 years of preceding occupation of the forested landscape of this region
The role of tropical-extratropical interaction and synoptic variability in maintaining the South Pacific Convergence Zone in CMIP5 models
The South Pacific Convergence Zone (SPCZ) is simulated as too zonal a feature in current generation climate models, including those in Phase 5 of the Coupled Model Intercomparison Project (CMIP5). This zonal bias induces errors in tropical convective heating, with subsequent effects on global circulation. The SPCZ structure, particularly in the subtropics, is governed by the tropical-extratropical interaction between transient synoptic systems and the mean background state. However, the fidelity of synoptic-scale interactions as simulated by CMIP5 models has not yet been evaluated. In this study, analysis of synoptic variability in the simulated subtropical SPCZ reveals that the basic mechanism of tropical-extratropical interaction is generally well simulated, with storms approaching the SPCZ along comparable trajectories to observations. However, there is a broad spread in mean precipitation and its variability across the CMIP5 ensemble. Inter-model spread appears to relate to a biased background state in which the synoptic waves propagate. In particular, the region of mean negative zonal stretching deformation or "storm graveyard" in the upper troposphere?a feature previously determined to play a key role in SPCZ-storm interactions?is typically displaced in CMIP5 models to the northeast of its position in reanalysis data, albeit with individual model graveyards displaying a pronounced (25 degree) longitudinal spread. From these findings, we suggest that SPCZs simulated by CMIP5 models are not simply too zonal; rather, in models the subtropical SPCZ manifests a diagonal tilt similar to observations while SST biases force an overly zonal tropical SPCZ, resulting in a more disjointed SPCZ than observed
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Multiscale perspectives of fire, climate and humans in western North America and the Jemez Mountains, USA
Interannual climate variations have been important drivers of wildfire occurrence in ponderosa pine forests across western North America for at least 400 years, but at finer scales of mountain ranges and landscapes human land uses sometimes over-rode climate influences. We reconstruct and analyse effects of high human population densities in forests of the Jemez Mountains, New Mexico from ca 1300 CE to Present. Prior to the 1680 Pueblo Revolt, human land uses reduced the occurrence of widespread fires while simultaneously adding more ignitions resulting in many small-extent fires. During the 18th and 19th centuries, wet/dry oscillations and their effects on fuels dynamics controlled widespread fire occurrence. In the late 19th century, intensive livestock grazing disrupted fuels continuity and fire spread and then active fire suppression maintained the absence of widespread surface fires during most of the 20th century. The abundance and continuity of fuels is the most important controlling variable in fire regimes of these semi-arid forests. Reduction of widespread fires owing to reduction of fuel continuity emerges as a hallmark of extensive human impacts on past forests and fire regimes. This article is part of the themed issue ‘The interaction of fire and mankind’
SLC4A10 mutation causes a neurological disorder associated with impaired GABAergic transmission
SLC4A10 is a plasma-membrane bound transporter which utilizes the Na+ gradient to drive cellular HCO3- uptake, thus mediating acid extrusion. In the mammalian brain, SLC4A10 is expressed in principal neurons and interneurons, as well as in epithelial cells of the choroid plexus, the organ regulating the production of cerebrospinal fluid. Using next generation sequencing on samples from five unrelated families encompassing ten affected individuals, we show that biallelic SLC4A10 loss-of-function variants cause a clinically recognizable neurodevelopmental disorder in humans. The cardinal clinical features of the condition include hypotonia in infancy, delayed psychomotor development across all domains and typically severe intellectual impairment. Affected individuals commonly display traits associated with autistic spectrum disorders including anxiety, hyperactivity and stereotyped movements. In two cases isolated episodes of seizures were reported in the first few years of life, and a further affected child displayed bitemporal epileptogenic discharges on EEG without overt clinical seizures. While occipitofrontal circumference was reported to be normal at birth, progressive postnatal microcephaly evolved in 7 out of 10 affected individuals. Neuroradiological features included a relative preservation of brain volume compared to occipitofrontal circumference, characteristic narrow sometimes 'slit-like' lateral ventricles and corpus callosum abnormalities. Slc4a10 -/- mice, deficient for SLC4A10, also display small lateral brain ventricles and mild behavioral abnormalities including delayed habituation and alterations in the 2-object novel object recognition task. Collapsed brain ventricles in both Slc4a10-/- mice and affected individuals suggests an important role of SLC4A10 in the production of the cerebrospinal fluid. However, it is notable that despite diverse roles of the cerebrospinal fluid in the developing and adult brain, the cortex of Slc4a10-/- mice appears grossly intact. Co-staining with synaptic markers revealed that in neurons, SLC4A10 localizes to inhibitory, but not excitatory, presynapses. These findings are supported by our functional studies which show the release of the inhibitory neurotransmitter GABA is compromised in Slc4a10-/- mice, while the release of the excitatory neurotransmitter glutamate is preserved. Manipulation of intracellular pH partially rescues GABA release. Together our studies define a novel characteristic neurodevelopmental disorder associated with biallelic pathogenic variants in SLC4A10 and highlight the importance of further analyses of the consequences of SLC4A10 loss-of-function for brain development, synaptic transmission and network properties
Probing the surface chemistry of self-assembled peptide hydrogels using solution-state NMR spectroscopy
The surface chemistry of self-assembled hydrogel fibres – their charge, hydrophobicity and ion-binding dynamics – is recognised to play an important role in determining how the gels develop as well as their suitability for different applications. However, to date there are no established methodologies for the study of this surface chemistry. Here, we demonstrate how solution-state NMR spectroscopy can be employed to measure the surface chemical properties of the fibres in a range of hydrogels formed from N-functionalised dipeptides, an effective and versatile class of gelator that has attracted much attention. By studying the interactions with the gel fibres of a diverse range of probe molecules and ions, we can simultaneously study a number of surface chemical properties of the NMR invisible fibres in an essentially non-invasive manner. Our results yield fresh insights into the materials. Most notably, gel fibres assembled using different tiggering methods bear differing amounts of negative charge as a result of a partial deprotonation of the carboxylic acid groups of the gelators. We also demonstrate how chemical shift imaging (CSI) techniques can be applied to follow the formation of hydrogels along chemical gradients. We apply CSI to study the binding of Ca2+ and subsequent gelation of peptide assemblies at alkaline pH. Using metal ion-binding molecules as probes, we are able to detect the presence of bound Ca2+ ions on the surface of the gel fibres. We briefly explore how knowledge of the surface chemical properties of hydrogels could be used to inform their practical application in fields such as drug delivery and environmental remediation
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