ORCID Profile
0000-0001-5904-7629
Current Organisation
University of Adelaide
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Publisher: Cold Spring Harbor Laboratory
Date: 27-06-2022
DOI: 10.1101/2022.06.23.22276834
Abstract: Background Archaeological investigations of human skeletal material require non-destructive techniques. Large Volume Micro-Computed Tomography (LV Micro-CT) scanning systems allow acquisition of data from complete skulls. This study aims to determine 1) whether LV Micro-CT scanning can as a single technique provide adequate data for the analysis of the dentoalveolar complex, 2) how its outputs of dental and alveolar bone analyses compare to those of macroscopic and radiographic methods, and 3) how it compares with Small Volume Micro-Computed Tomography (SV Micro-CT), for analysis of in idual teeth? Material and Methods: Five archaeological human skulls were investigated. These represented both sexes and a broad age range. Large Volume Micro-CT, Macroscopic and Radiographic methods and SV Micro-CT scanning were used. Statistical analysis of intra and inter-operator reproducibility using five observers was undertaken. Results: Large Volume Micro-CT as a stand-alone technique provided results across the full range of dentoalveolar complex categories measured. By combining traditional techniques similar results were obtained. There were high levels of reproducibility for intra-operator scoring and good inter-operator agreement from 4 operators with 1 operator whose results were outliers. Discussion: The LV Micro-CT was the only technique to singularly provide a full range of measurements. A combination of the other techniques covered a similar range of categories, but the use of multiple methods was more time consuming. For some specific measurements, SV Micro-CT provided more detailed information. Conclusion: This first study confirms the value of LV Micro-CT scanning for the analysis of the dentoalveolar complex of archaeological s les. Findings demonstrate the advantage of LV Micro-CT, which provided a comprehensive range of data as a stand-alone technique rather than combing modalities to achieve the same result. The SV Micro-CT provided higher resolution analysis for loose in idual teeth due to the small size of the specimens but could not study the alveolar bone.
Publisher: Cold Spring Harbor Laboratory
Date: 20-04-2021
DOI: 10.1101/2021.04.18.21255521
Abstract: Nineteenth century medical understanding of human metabolism was limited, therefore, the incidence of metabolic deficiencies was not fully recorded. In addition, the transition from agricultural based mode of life to the industrial one significantly changed the pattern of these metabolic deficiencies. They were further altered by colonisation of distant continents. Palaeopathological study of skeletal remains from the early industrialised colonial era allowed light to be shed on the metabolic stresses produced by this new mode of life. Aims of this study were to investigate manifestations of disease in skeletal remains from 65 (20 adults, 45 sub-adults) migrant settlers buried in the “free ground” of St Mary’s Anglican Church Cemetery (1847 to 1927). An area allocated for burials paid for by the South Australian Government. Skeletal manifestations were determined and interpreted in terms of their multiple aetiologies. Findings were compared with those published for two 19 th century British s les. Skeletal manifestations, commonly related to metabolic deficiencies, were observed. Areas of abnormal porosity of bone cortices were seen in 9 adults and 12 sub-adults, flaring of metaphyses was seen in one sub-adult, flaring of costochondral junctions of the ribs was seen in one sub-adult. Porous lesions of orbital roof bones (Types 3 to 5) were seen on three sub-adults. Micro-CT scans of tooth s les located interglobular dentine in three in iduals. Comparison of St Mary’s findings with St Martins, Birmingham, and St Peter’s, Wolverh ton, UK, showed more in iduals from St Mary’s had areas of abnormal porosity of bone cortices possibly related to vitamin C deficiency. However, St Mary’s s le displayed fewer changes attributable to vitamin D deficiency as expected in a country with greater UV irradiation. This indicates that, although the early industrialisation produced metabolic stresses, change of the environment through colonisation of new continents altered the distribution of metabolic deficiencies.
Publisher: Wiley
Date: 31-01-2021
DOI: 10.1111/JOA.13401
Abstract: Approximate location of the 12th meridian in the hand and the forearm in relation to median artery and median nerve.
No related grants have been discovered for Jaliya Kumaratilake.