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This article presents an innovative workflow for the acquisition and storage of archaeological data. The system is based on open-source software to enhance method replication and media accessibility. QGIS software is used as the central platform, connected to a spatial database developed in PostgreSQL and managed with the SQL and Python programming languages. The aim is to achieve an efficient, flexible, and reproducible digital method for data collection and management that can be applied to surface archaeological surveys. During the implementation and development of the method, we have recorded over 4,600 archaeological remains in two different structures with traces of Upper Paleolithic activity in the Lower Gallery of La Garma (Cantabria, Spain). After 18 months of continuous work, the results obtained demonstrate the usefulness and versatility of this procedure, which can be adapted to each context and to the specific needs of each researcher. Our goal is not simply to systematize archaeological documentation, as traditionally proposed, but to establish a simple and robust method for data collection and preservation, accessible to any user. Its fully open-source approach aims to promote a model that is nurtured by the use and contributions of the research community.
Travel distance is a key barrier for patients to participate in clinical trials or receive cancer care. The National Cancer Institute (NCI) is a major funder of cancer research infrastructure through grant programs like the NCI Cancer Center (NCICC) and NCI Community Oncology Research Program (NCORP); however, the majority of US sites that care for people with cancer do not directly receive this funding.
Methods:
Through geospatial analysis we examined patient distance to NCI-funded sites and evaluated demographic subgroups to identify potential disparities in access to research opportunities. We assessed whether new NCI support to previously unfunded sites could address identified barriers in access.
Results:
NCI-funded sites tend to be in urban centers and are less accessible to low-income or rural patients. Nearly 17% of the US population over 35 years old would have to drive over 100 miles to obtain care at an NCI-funded site; only 1.6% would be beyond that distance when non-funded sites are added. For those below poverty level, the proportions are 20.2% and 1.9%, respectively. Several US regions, including the South and Appalachia, have particularly limited access to NCI-funded sites despite high cancer incidence, and much of the West and Great Plains are distant from any cancer facilities.
Conclusions:
NCI could address travel distance as a major barrier to research participation by expanding the geographical footprint of its infrastructure funding using existing institutions in areas with identified gaps. Geospatial analysis at the census tract level is recommended and geospatial visualization can help identify strategic areas for interventions.
This study aimed to examine emergency transport times considering closed roads to propose more efficient transport routes to improve the life-saving rate for seriously injured people in Sapporo during an earthquake disaster. Sapporo is the capital of Hokkaido and has a population of approximately 1.97 million as of 2020.
Methods
Transport routes were created using publicly available data and a geographic information system (GIS), and the emergency transport times in Sapporo were subsequently calculated. Closed roads were defined as roads in “areas with high liquefaction potential” and “areas with a total house destruction rate ≥20%.”
Results
Closed roads were concentrated in the northeastern part of the city, as were extended emergency transport times, with delays of up to 101 min. Other areas did not experience significant delays.
Conclusions
The emergency transport time was prolonged in areas with closed roads. Triage posts and semi-closed roads were also suggested to affect emergency transport times. To minimize emergency transport times, it is necessary to consider having nurses and doctors ride in ambulances to triage patients, and to coordinate with disaster base hospitals outside of the city to transport seriously injured people.
Cystic echinococcosis (CE) is a significant zoonotic helminthic disease with considerable public health and economic impact in endemic regions. We aimed to analyse the climatic and environmental factors affecting the human CE cases in North Khorasan Province, northeast Iran. Using a geographic information system, we map the addresses of 316 hospitalised CE patients from 2012 to 2022 and examined the influence of climatic variables, altitude, and land cover on CE case distribution. Data were analysed using logistic regression models. Most patients were female (58.9%) and aged 21–60 years (67.4%), with liver involvement being the most common (57.3%). The multivariate model identified urban settings, irrigated and dry farms, soil temperature, and humidity as the most important geoclimatic determinants, respectively. In contrast, gardens, moderate and excellent rangelands, minimum, maximum, and mean air temperatures, and rainfall were only found to be significant factors in univariate models. High-risk areas for CE include urban and suburban regions, surrounding fields, and pastures where stray dogs and wild canids roam, livestock husbandries are present, and residents consume unsanitised vegetables. Additionally, areas with lower soil and weather temperatures and higher humidity conditions that may enhance the survival of E. granulosus eggs dispersed by canids were identified as high-risk zones. Health managers can use these findings to prioritise control programs and allocate limited resources to these areas, ultimately reducing the future incidence of CE.
The chapter introduces Agnew’s three-fold definition of place – as location, locale, and sense of place – to structure its reflections. Over the last thirty years, a digital revolution has transformed what it is possible to map since Martin Gilbert first produced his Atlas of the Holocaust. The rich array of printed and digital maps now available serve both historiographical and memorial purposes. In terms of location, the terrain depicted has shifted eastwards in the wake of the end of the Cold War, and often homed in on meso- and micro-regions, representing spaces long neglected in older surveys. Moving on to locale, the chapter introduces recent work on the Nazi understanding of “Raum” and on the place of the Holocaust in the colonial imagination. Other studies have explored the spatial patterns of arrests and deportations, the multiple border changes of ghettos, or the creation and destruction of new kinds of spaces for concentrating and murdering human beings. Finally, historians of victim experience have used a variety of means to convey victims’ sense of place and space both at the time and as conveyed through testimony.
At the end of the last glaciation aeolian processes promoted the development of the European Sand Belt, generating one of the largest areas of cold-climate dune fields in the world. Specific processes that led to the development and stabilization of these dunes remain poorly understood because there have been limited attempts to reconstruct the Belt’s past aeolian environments. New paleoenvironmental information can now be provided through an assessment of residual dune ridges (RDRs), landforms that are characteristic of wet dune systems. We recently identified almost 2,000 RDRs within the Kampinos Forest dune field (central Poland) and examined them through detailed morphometric analysis. That search showed that the development of the RDRs was driven by seasonally increased fluvial runoff and, in the longer term, by climate amelioration—apparently during the Bølling–Allerød interstadial. The high density of dunes protected ridges from deflation, so was crucial towards RDR preservation. The study proved that the RDRs can exist for more than 10 ka years, thus they can be used as environmental proxies. Additionally, they can be used as an indicator of past flood-event frequency and magnitude, as well as act as repositories of information on past-dune transformation.
Historic sites of lawful execution are now largely consigned to archival records, including hand-drawn maps. Using these records to identify potential locations, this project deploys non-invasive geophysical surveys and targeted excavation to uncover execution sites and historic gallows in Silesia.
Intermediate levels of social organization—above the household but below the entire settlement, city, or polity—are notoriously difficult to pinpoint in archaeological contexts, but they nevertheless represent a crucial frontier for building new archaeological theory to understand daily social life in the past. Ethnographic research demonstrates that informants recognize units such as the “neighborhood” and consider them important. In Mesoamerica, organizational units such as the Mixtec siqui, Aztec calpulli, and Maya cuchcabal were often formally recognized in social, military, and economic systems. Here, a neighborhood case study is presented from San Pedro Teozacoalco in Oaxaca, Mexico. The site known as Iglesia Gentil, which is located atop a mountain today called Cerro Amole, was the cabecera, or administrative center, of Chiyo Cahnu, an important Postclassic Mixtec polity. Using distributions of architecture and artifacts across the site based on data collected with GPS units from 2013 to 2017, three complementary GIS-based models are evaluated for their ability to define neighborhoods at Iglesia Gentil. The best is based on least cost paths modified by Tobler's hiking function.
Typically, weed density is used to predict weed-induced yield loss, as it is easy and quick to quantify, even though it does not account for weed size and time of emergence relative to the crop. Weed–crop leaf area relations, while more difficult to measure, inherently account for differences in plant size, representing weed–crop interference more accurately than weed density alone. Unmanned aerial systems (UASs) may allow for efficient quantification of weed and crop leaf cover over a large scale. It was hypothesized that UAS imagery could be used to predict maize (Zea mays L.) yield loss based on weed–crop leaf cover ratios. A yield loss model for maize was evaluated for accuracy using 15- and 30-m-altitude aerial red–green–blue and four-band multispectral imagery collected at four North Carolina locations. The model consistently over- and underpredicted yield loss when observed yield loss was less than and greater than 3,000 kg ha−1, respectively. Altitude and sensor type did not influence the accuracy of the prediction. A correction for the differences between predicted and observed yield loss was incorporated into the linear model to improve overall precision. The correction resulted in r2 increasing from 0.17 to 0.97 and a reduction in root mean-square error from 705 kg ha−1 to 219 kg ha−1. The results indicated that UAS images can be used to develop predictive models for weed-induced yield loss before canopy closure, making it possible for growers to plan production and financial decisions before the end of the growing season.
Supraglacial channels play a crucial role in transporting meltwater across ice sheets and ice shelves. Despite their importance, recent research has tended to focus on the storage of supraglacial meltwater (e.g. in lakes), and our understanding of the distribution and connectivity of channels is more limited, particularly in Antarctica. Here we investigate large (>30 m wide) supraglacial channels on five contrasting ice shelves in Antarctica during the melt seasons of 2020 and 2022. Supraglacial channels are mapped by applying an automated delineation method to Landsat-8 satellite imagery, and various metrics are calculated to quantify and describe their fluvial morphometry. Results show that supraglacial channels are extensive on all five ice shelves, forming a total of 119 channel networks that exhibit relatively simple structures that do not exceed fourth-order Strahler ordering and which mostly occur on low ice surface slopes (<0.001) and at low elevations where ice is slow-flowing (<150 m a−1). The orientation of channels broadly coincides with the ice flow direction and is clearly influenced by surface structures (e.g. longitudinal flow-stripes), which appear to exert a strong control on both channel formation and their morphological properties.
Peatlands, covering approximately one-third of global wetlands, provide various ecological functions but are highly vulnerable to climate change, with their changes in space and time requiring monitoring. The sub-Antarctic Prince Edward Islands (PEIs) are a key conservation area for South Africa, as well as for the preservation of terrestrial ecosystems in the region. Peatlands (mires) found here are threatened by climate change, yet their distribution factors are poorly understood. This study attempted to predict mire distribution on the PEIs using species distribution models (SDMs) employing multiple regression-based and machine-learning models. The random forest model performed best. Key influencing factors were the Normalized Difference Water Index and slope, with low annual mean temperature, with low annual mean temperature, precipitation seasonality and distance from the coast being less influential. Despite moderate predictive ability, the model could only identify general areas of mires, not specific ones. Therefore, this study showed limited support for the use of SDMs in predicting mire distributions on the sub-Antarctic PEIs. It is recommended to refine the criteria used to select environmental factors and enhance the geospatial resolution of the data to improve the predictive accuracy of the models.
This article explores the Maroon landscape of the Caribbean island of Dominica (Wai'tukubuli) by creating a geographic information system (GIS) model to determine the reasons behind settlement location choices. For more than 50 years, hundreds of self-emancipated Africans inhabited the mountainous interior of Dominica, where they formed various communities that actively resisted European colonialism and slavery not only to maintain their freedom but to assist in liberating enslaved Africans throughout the island. Contemporary Dominican communities maintain connections to these revolutionary ancestors through the landscape and continuing cultural practices. None of the Maroon encampments, however, have been studied archaeologically. This study uses geospatial methods to understand the visibility, defensibility, and spatial accessibility of nine Maroon camps. The results of the viewshed and least cost path analysis allows us to map Dominican Maroon social networks and reimagine the possible routes that the Maroons took to maintain their freedom.
In the summer of 2022, Tulane University, in collaboration with archaeologists from other institutions, began excavations at the site of Pompeii. The archaeological work was focused on Insula 14 of Region 1, located in the southeastern sector of the site. To overcome the challenges of recording a complex urban excavation, and of working with a collaborative team, we designed and implemented a unique workflow that combines paperless and 3D data-capture methods through the use of GIS technologies. The final product of our documentation workflow was a robust and easy-to-use online geodatabase where archaeologists can revisit, explore, visualize, and analyze each excavated context using virtual tools. We present our workflow for digitally documenting observational and spatial data in the field, and how we made these data available to project archaeologists during and after the field season. First, we describe the development of digital forms in ESRI's Survey123. Then, we explain our procedures for 3D documentation through SfM photogrammetric methods and discuss how we integrated the data and transformed it into an accessible format by using interactive dashboards and online 3D web scenes. Finally, we discuss the components of our workflow that are broadly applicable and that can easily be adapted to other projects.
Humans inhabit rich social and physical worlds and archaeology is increasingly engaging with the multi-sensory experience of life in the past. In this article, the authors model the soundscapes of five Chacoan communities on the Colorado Plateau, where habitation sites cluster around monumental great houses. The work demonstrates that the audible range of a conch-shell trumpet blown from atop these great houses consistently maps the distribution of associated habitation sites. Staying within the audible reach of great houses may have helped maintain the social cohesion of communities in the past which, the authors argue, also has implications for the management of archaeological landscapes in the modern world.
Though infrequently used and largely superfluous, amphitheaters were often the most physically imposing and ideologically charged structures in a Roman city. The preponderance of extramural amphitheaters in Italy and their appearance in visual culture confirm they were potent markers of urban life and civic status. This paper contextualizes Tibur's imperial amphitheater within the Roman suburbium's persistent urban sprawl and villas, especially Hadrian's Villa, using a novel GIS visibility analysis. Its apparent size from various points in the surrounding landscape is quantified within empirical and qualitative scales developed for modern visual impact assessments. The results demonstrate the amphitheater's suburban location did more than integrate Tibur's extramural growth into the older urban center. It emphasized the city's urban appearance, even from long distances, and monumentalized alternate routes to the city used by the villa-owning elite, countering the ambiguous status of a liminal city that was both Rome's annex and an autonomous municipium.
This report presents new documentation of the external canal in the Late Postclassic site of Tetzcotzinco in the municipality of Texcoco, Mexico. This structure was previously considered a waterwork separate from the monumental water-management system discovered in the central part of the site. However, reanalysis of the course of this canal allowed us to reassess its function and revise the existing Tetzcotzinco maps. We propose that this structure formed part of the main water-management system of the site.
This chapter explores the interpretive possibilities raised by computational visualizations of digitized literature and literary data. Taking Franco Moretti’s Maps, Graphs and Trees (2007) as a starting point, it considers what new insights these techniques of visualization, seldom employed in the humanities, can convey. Carter speaks with leading practitioners in the field to unpack the ways in which new techniques in digital data visualization are allowing scholars “to perform conventional work in new ways.” Applying these techniques to literary data for which they are not designed, however, also reveals a productive push and pull: as one of Carter’s interview subjects, Alex Christie, puts is, “We’re reading the literature on the technology, but we’re also seeing where the literature we’re trying to model pushes against the edges of the technical frameworks we have in hand.”
Cet article est une étude expérimentale menée sur le site archéologique de Gasr Chouline à Tataouine en utilisant la prospection archéologique et les systèmes d'informations géographiques (SIG) pour améliorer la gestion du site. Bien que cette étude n'ait pas prétendu à l'exhaustivité, elle a fourni de nouvelles données archéologiques par suite d'une prospection systématique.
A long-term project to map and catalog all precontact Native American burial mounds in Iowa provides information about the number, location, form, survivorship, and rate of loss of mounds. This analysis reveals previously undocumented mound manifestations, including a large cluster of 200 linear mounds along the central Des Moines River valley. Historical records reveal that at least 7,762 mounds were identified at 1,551 sites in Iowa between 1840 and the present. About 47% of the mounds from these sites can be possibly seen in lidar, with 33% of the total clearly seen in lidar. Data show that mound loss over time is linear. Extrapolation of data suggests that at least 15,000–17,000 mounds stood in Iowa in the nineteenth century, but the actual number was likely higher.
We present a photogrammetric model and new line drawing of Sacul Stela 3 at the ancient Maya site of Sacul 1, Guatemala. Although virtually illegible in person and from photographs, the inscription on the eroded stela can largely be read or reconstructed in the 3D model. Our reading confirms a previous argument that the kingdom based at Sacul 1 was attacked in A.D. 779 by forces from the site of Ucanal. Traveling by night, warriors from Sacul retaliated with a raid at dawn next day on an unidentified site and, months later, followed up with an attack on Ucanal itself. The same narrative appears substantially on a well-known monument, Ixkun Stela 2, but there are differences between the two texts which suggest that Sacul and Ixkun had their own sculptors and record-keepers and which offer insights into the implications of verbs (pul, “to burn” and ch'ak, “to chop”) commonly attested in Classic Maya accounts of war. We then present the results of GIS analysis which suggests that the site area of El Rosario (between Sacul 1 and Ucanal) is an appealing candidate for the unidentified site mentioned in the stela text.