Current Search: Schultz, John (x)
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- Title
- Postcranial Osteometric Assessment of Korean Ancestry.
- Creator
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Okrutny, Elizabeth, Dupras, Tosha, Mcintyre, Matthew, Schultz, John, Byrd, John, University of Central Florida
- Abstract / Description
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The determination of ancestry is an important part of an individual's identification when creating a biological profile. This thesis scrutinizes postcranial variation using over 65 osteometric sorting measurements in an attempt to identify those measurements that display the most significant differences among Koreans, Africans, and Europeans. Data was collected from four American skeletal collections and one South Korean skeletal collection for a total sample population of 306 individuals: 24...
Show moreThe determination of ancestry is an important part of an individual's identification when creating a biological profile. This thesis scrutinizes postcranial variation using over 65 osteometric sorting measurements in an attempt to identify those measurements that display the most significant differences among Koreans, Africans, and Europeans. Data was collected from four American skeletal collections and one South Korean skeletal collection for a total sample population of 306 individuals: 24 of Korean ancestry, 66 of African ancestry, and 216 of European ancestry. In an effort to minimize the number of measurements needed for ancestral assessment, stepwise discriminant analysis was performed for measurements of each skeletal region and region combinations. Initial findings highly misclassified Africans, so the results of this study were separated into two parts: Koreans from Africans/Europeans and Africans from Europeans. A majority of the functions developed in the first part of the analysis resulted in cross-validated classifications of 80% and greater for Koreans and 77% or greater for Africans/Europeans with the highest classifying function for both ancestral groups being composed of upper limb measurements. Most of the discriminant functions from the second part of the analysis correctly differentiated Africans with 70% or greater accuracy and Europeans with 72% or greater accuracy with the highest classifying function for both groups consisting of pelvis, lower limb, and foot measurements. These functions indicate that ancestry can be determined successfully from postcranial elements; that certain skeletal regions are better indicators of ancestry than others; and that osteological remains do not need to be complete to develop an informative biological profile.
Show less - Date Issued
- 2012
- Identifier
- CFE0004296, ucf:49476
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0004296
- Title
- Bioarchaeological Investigations of The Red House Archaeological Site, Port of Spain, Trinidad: A Pre-Columbian, Mid-Late Ceramic Age Caribbean Population.
- Creator
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Meyers, Patrisha, Schultz, John, Williams, Lana, Toyne, J. Marla, Reid, Basil, University of Central Florida
- Abstract / Description
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In 2013 structural assessments associated with ongoing renovations of the Red House, Trinidad and Tobago's Parliament building, revealed human remains buried beneath the foundation. Excavations and radiocarbon dating indicate the remains are pre-Columbian with 14C dates ranging between approximately AD 125 and AD 1395. Due to the small overall sample size and the inability to attribute all individuals to a specific Amerindian period, the skeletal sample was considered as an aggregate. A...
Show moreIn 2013 structural assessments associated with ongoing renovations of the Red House, Trinidad and Tobago's Parliament building, revealed human remains buried beneath the foundation. Excavations and radiocarbon dating indicate the remains are pre-Columbian with 14C dates ranging between approximately AD 125 and AD 1395. Due to the small overall sample size and the inability to attribute all individuals to a specific Amerindian period, the skeletal sample was considered as an aggregate. A bioarchaeological assessment of excavated graves and associated human skeletal material was conducted to determine the demographic profile and the pathological conditions exhibited by the collective skeletal 'population.' Osteological analyses included determining the minimum number of individuals (MNI), assessing the biological profile (e.g. sex, age, ancestry and stature), evaluating pathological conditions, antemortem and perimortem trauma and describing the overall taphonomic modifications. In addition, dental wear patterns, artificial cranial modifications and musculoskeletal stress markers were noted. Finally, the mortuary treatment and context was compared to the limited information published on contemporary skeletal samples from islands in the Lesser Antilles and nearby coastal regions of South America. The sample consisted of an MNI of 60 individuals including 47 adults and 13 juveniles. The skeletal completeness of these individuals ranged from a single skeletal element to more than 90% complete. Sex assessment was possible for 23 individuals with 11 females (23%) and 17 males (35%). Multiple antemortem conditions indicate a total of 35 individuals (58%) who exhibited one or more pathological condition including dental pathology (e.g. LEHs, carious lesions, antemortem tooth loss, dental wear, abscesses and a possible apical cyst), healed antemortem trauma, non-specific generalized infections, osteoarthritis, spinal osteophystosis and Schmorl's nodes. Additional antemortem conditions include examples of artificial cranial modification in both sexes, and activity related humeral bilateral asymmetry. While not a representative population, the reconstruction of health, lifestyle and disease for these ancient peoples makes a significant contribution to the limited osteological research published on the Caribbean's pre-contact period.
Show less - Date Issued
- 2016
- Identifier
- CFE0006144, ucf:52863
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0006144
- Title
- Investigations of possible cases of scurvy in juveniles from the Kellis 2 cemetery in the Dakhleh Oasis, Egypt, through stable carbon and nitrogen isotopic analysis of multiple tissues.
- Creator
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Chasse, Georgina, Schultz, John, Wheeler, Sandra, Dupras, Tosha, Williams, Lana, University of Central Florida
- Abstract / Description
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Vitamin C deficiency, or scurvy, is a disease that can occur in humans at any age and has been seen throughout time. Scurvy affects the production of connective tissues, including collagen, which leads to the many symptoms of the disease, including fatigue, anemia, bleeding gums and lost teeth, skeletal changes, and even death. The Kellis 2 cemetery in the Dakhleh Oasis, Egypt, in use from approximately AD 50-360, contains the remains of many juveniles who exhibit skeletal indicators of...
Show moreVitamin C deficiency, or scurvy, is a disease that can occur in humans at any age and has been seen throughout time. Scurvy affects the production of connective tissues, including collagen, which leads to the many symptoms of the disease, including fatigue, anemia, bleeding gums and lost teeth, skeletal changes, and even death. The Kellis 2 cemetery in the Dakhleh Oasis, Egypt, in use from approximately AD 50-360, contains the remains of many juveniles who exhibit skeletal indicators of scurvy. Tissue samples from juveniles who did (n=31) and did not (n=117) exhibit skeletal indicators of scurvy were analyzed isotopically, with the sample including stable carbon (?13C) and nitrogen (?15N) isotope values of bone collagen (scurvy =11, non-scurvy =13), hair (scurvy=21, non-scurvy=112), nail (scurvy =10, non-scurvy =44), and skin (scurvy =19, non-scurvy =59). Intra-tissue comparisons were conducted to determine whether this disease affects ?13C and ?15N values sufficiently to distinguish these two groups from one another isotopically. Inter-tissue comparisons between bone collagen and hair were also conducted, with emphasis placed on inter-tissue spacing results and outliers. Mean ?13C and ?15N values for each hair segment were compared to look for early isotopic signals of scurvy. No statistically significant differences were found between any intra-tissue scurvy and non-scurvy cohorts and no obvious indications of the onset of scurvy were seen in the hair segment analyses. The inter-tissue spacing results, however, highlighted some interesting patterns in the bone collagen-to-hair values, especially in regards to the identified outliers that are discussed in more detail. While this study did not detect any significant differences between scurvy and non-scurvy cohorts or early isotopic signals of the disease in hair segments, the inter-tissue spacing results do point to changes between the cohorts that may be attributable to the physiological stress of scurvy and therefore warrants further investigation.
Show less - Date Issued
- 2018
- Identifier
- CFE0007164, ucf:52273
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0007164
- Title
- Utilizing Geographic Information Systems to Record and Analyze Osteoarthritis Data in Joints of the Arm: A Methodology for Dry Bones.
- Creator
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Biernaski, Adam, Schultz, John, Wheeler, Sandra, Williams, Lana, Branting, Scott, University of Central Florida
- Abstract / Description
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Osteoarthritis (OA) is one of the most common pathologies encountered in dry bone contexts. However, even with the wealth of publications on documenting the presence of OA from skeletons, these studies prove to be largely incomparable due to different scoring methodologies and procedures in calculating prevalence. The standardization of a new OA data collection procedure would mitigate variability in evaluating, scoring, and calculating the prevalence of OA, thus allowing accurate comparison...
Show moreOsteoarthritis (OA) is one of the most common pathologies encountered in dry bone contexts. However, even with the wealth of publications on documenting the presence of OA from skeletons, these studies prove to be largely incomparable due to different scoring methodologies and procedures in calculating prevalence. The standardization of a new OA data collection procedure would mitigate variability in evaluating, scoring, and calculating the prevalence of OA, thus allowing accurate comparison between studies. However, this level of data collection has often been described as unwieldy and lacking concordance. This research outlines a new methodology that utilizes Geographic Information Systems (GIS) to record OA characteristics, levels of expression, and spatial arrangement on the articular surfaces of the arm. The data was then processed using the analysis and visual rendering capabilities of GIS providing examples of OA patterning on the articular surface, within the joint, and within the individual. Using this method, large standardized OA datasets can be stored and the patterns within them modeled through the use of digitization, composite raster overlays, and modified binning techniques. The patterns recorded by this analysis can offer a more robust dataset on OA occurring within the arm that can provide the ability to explore OA progression and its relationship with biomechanical factors in larger datasets.
Show less - Date Issued
- 2019
- Identifier
- CFE0007789, ucf:52362
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0007789
- Title
- Evaluation of a Field Histology Technique and Its Use in Histological Analyses of Mummified Tissues from Dakhleh Oasis, Egypt.
- Creator
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Branson, Jennifer, Dupras, Tosha, Wheeler, Sandra, Williams, Lana, Schultz, John, University of Central Florida
- Abstract / Description
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Use of paleohistology to identify histological structures in mummified tissues can allow insight into pathological conditions such as parasites, cirrhosis and lung scarring. However, increasing concerns in archaeological sciences include restrictions on removal of human remains from their site of origin for scientific study. In the case of mummified remains, the use of a field paleohistology kit may be deemed useful for 'point-of-care' pathological assessment of preserved tissues. This study...
Show moreUse of paleohistology to identify histological structures in mummified tissues can allow insight into pathological conditions such as parasites, cirrhosis and lung scarring. However, increasing concerns in archaeological sciences include restrictions on removal of human remains from their site of origin for scientific study. In the case of mummified remains, the use of a field paleohistology kit may be deemed useful for 'point-of-care' pathological assessment of preserved tissues. This study evaluates field paleohistology protocols for mummified soft tissue based on techniques used modern medical field missions. The application of this technique alleviates the need for export or removal of remains from the site for analysis. Samples from the Kellis 1 Cemetery (c. 60BC (-) AD100) and Deir abu Metta Christian church (c. 4th century AD) in the Dakhleh Oasis, Egypt were processed using field paleohistology techniques in both a laboratory and field setting. Two processes of soft tissue preservation were identified in this sample; anthropogenic or 'artificial', and spontaneous or 'natural' mummification. In cases of artificial mummification, the use of resin, both on internal and external surfaces of the body, caused difficulty in the rehydration process and visualization of the cellular structures. In cases of natural mummification, the technique was more successful in rehydration, slide mounting, imaging, and detection of cellular structures. Results also showed some tissue samples to be unsuitable for this method due to variable preservation and loss of tissue integrity during processing (e.g., liver). However, consistent quality microscope slides and digital images were obtained from samples of skin, muscle, lung, and liver indicating this point-of-care field method is a viable option for paleohistological field analyses and identification of pathological conditions in mummified human remains.
Show less - Date Issued
- 2013
- Identifier
- CFE0004821, ucf:49729
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0004821
- Title
- Bioarchaeological assessment of diet and changes in femoral and humeral stable isotopic values among subadults at Medieval Alytus, Lithuania.
- Creator
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Page, Katherine, Dupras, Tosha, Williams, Lana, Wheeler, Sandra, Schultz, John, University of Central Florida
- Abstract / Description
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Establishing a chronology of variation in isotopic values can reveal frailty associated with biological and social age, as well as highlight individuals who vary from typical patterns. Although general dietary characteristics and infant feeding practices were previously unknown for subadults excavated from the cemetery at Alytus, Lithuania (14th-18th centuries), previous research concludes that Alytus' subadults experienced high rates of physiological, metabolic, non-specific stress, in...
Show moreEstablishing a chronology of variation in isotopic values can reveal frailty associated with biological and social age, as well as highlight individuals who vary from typical patterns. Although general dietary characteristics and infant feeding practices were previously unknown for subadults excavated from the cemetery at Alytus, Lithuania (14th-18th centuries), previous research concludes that Alytus' subadults experienced high rates of physiological, metabolic, non-specific stress, in addition to specific diseases like tuberculosis. To investigate nuanced relationships between diet and mortality, nitrogen and carbon stable isotopes from the femoral and humeral midshaft diaphyses of 70 subadults (32 weeks gestation to16 years) were analyzed. Dietary reconstruction reveals that on average, exclusive breastfeeding continued until around 2 years of age when enriched ?13C (-19.6‰) and ?15N values (12.7‰) begin to deplete suggesting introduction of C3 grain gruels and potential weaning-associated infirmity. Nitrogen values remained slightly elevated in children (3-5 years, 11.2‰) until the beginning of juvenility (5-8 years, 10.3‰) when ?15N more closely mirrored adult values (16 years, 10.2‰), consistent with predominant consumption of terrestrial animal protein, possibly with riverine influence. The difference between femoral to humeral ? F-H 13C (-0.05 (&)#177;0.25‰, 1?) and ? F-H 15N (- 0.01(&)#177;0.45‰, 1?) was not significant, though humeral values were on average more enriched. Enrichments in humeral nitrogen and carbon coincided with estimated weaning age. Cohorts experiencing childhood and adolescent growth spurts experienced higher femoral ?13C and ?15N values. Examining dietary experience and physiological changes contributes a holistic understanding of subadult morbidity and mortality experiences in Medieval Lithuania.
Show less - Date Issued
- 2014
- Identifier
- CFE0005679, ucf:50192
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0005679
- Title
- Interpreting Diet and Nutritional Stress in Napoleon's Grand Army using Stable Carbon and Nitrogen Isotope Analysis.
- Creator
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Holder, Sammantha, Dupras, Tosha, Schultz, John, Williams, Lana, Toyne, Jennifer, University of Central Florida
- Abstract / Description
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A mass grave containing the remains of at least 3269 Napoleonic soldiers from 1812 was discovered in Vilnius, Lithuania in 2001. Stable carbon and nitrogen isotopic analyses were performed on collagen from 78 femoral samples to explore dietary variation within the sample. Starvation and nutritional distress were also evaluated through the examination of nitrogen enrichment in bone collagen. Clinical studies have demonstrated that enriched nitrogen isotope values can indicate periods of...
Show moreA mass grave containing the remains of at least 3269 Napoleonic soldiers from 1812 was discovered in Vilnius, Lithuania in 2001. Stable carbon and nitrogen isotopic analyses were performed on collagen from 78 femoral samples to explore dietary variation within the sample. Starvation and nutritional distress were also evaluated through the examination of nitrogen enrichment in bone collagen. Clinical studies have demonstrated that enriched nitrogen isotope values can indicate periods of nutritional stress and starvation; however, this is the first study to examine its use as a diagnostic indicator of starvation in a historical population using bone tissue. According to the carbon isotope data, a vast majority of the soldiers in this sample consumed predominantly C3 plants with only five individuals consuming more than 50% of their plant dietary protein in the form of C4 plants, with ?13C ratios for this sample ranging from -19.22‰ to -11.76‰ and a mean of -17.18‰. This conforms to expectations given that a majority of human plant consumption in Europe is C3 pathway plants. Twenty-nine individuals exhibit enriched ?15N values, with ?15N values for this sample ranging from 7.14‰ to 13.63‰ and a mean of 10.49‰. The combination of historical and isotopic evidence suggests prolonged nutritional stress may be the cause of enrichment in this sample. The results of this study demonstrate the applicability of this method on archaeological samples as a line of evidence in the investigation of starvation and famine.
Show less - Date Issued
- 2013
- Identifier
- CFE0005004, ucf:49982
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0005004
- Title
- Changes in Neolithic Subsistence Patterns on Flores, Indonesia Inferred by Stable Carbon, Nitrogen, and Oxygen Isotope Analyses of Sus from Liang Bua.
- Creator
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Munizzi, Jordon, Dupras, Tosha, Williams, Lana, Schultz, John, Tocheri, Matthew, University of Central Florida
- Abstract / Description
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Despite an abundance of archaeological material recovered from sites in Island Southeast Asia, the timing and route by which cultigens first arrived in Wallacea remains unclear. Many of the staple crops now grown on these islands were domesticated in mainland Asia, and were deliberately introduced by humans at an unknown point during the Holocene, through several possible routes. In this study, the ?13C, ?15N and ?18O values of subfossil bones and teeth attributed to Sus celebensis and Sus...
Show moreDespite an abundance of archaeological material recovered from sites in Island Southeast Asia, the timing and route by which cultigens first arrived in Wallacea remains unclear. Many of the staple crops now grown on these islands were domesticated in mainland Asia, and were deliberately introduced by humans at an unknown point during the Holocene, through several possible routes. In this study, the ?13C, ?15N and ?18O values of subfossil bones and teeth attributed to Sus celebensis and Sus scrofa are analyzed. These materials, which span the last 5160 years at Liang Bua, Flores, Indonesia are used to determine if and when there was a shift towards agricultural intensification, and whether this intensification included the integration of domesticated C4 crops. The ?13C and ?15N values of the bone and dentin collagen samples indicate an abrupt shift towards enrichment in 13C and depletion in 15N at some time between 5160 and 2750 yBP. This hints at changes in human subsistence patterns that may have included the clearing of forests, and the integration of non-endemic C4 cultigens such as foxtail millet (Setaria italica) onto the island. No statistically significant variation in the ?18O values of the enamel carbonate samples over time is observed, suggesting that once they appeared on Flores, semi-domesticated pigs became an important part of the island ecosystem, and were bred and raised on Flores instead of being continuously imported from elsewhere.
Show less - Date Issued
- 2013
- Identifier
- CFE0004728, ucf:49820
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0004728