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2024

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Full-Text Articles in Biological and Physical Anthropology

Scavenging As An Accelerant In The Postmortem Interval Estimate: Refining Quantitative Regressions For Decomposition Analyses In Southeast Nebraska, Jenna L. Alexander Dec 2024

Scavenging As An Accelerant In The Postmortem Interval Estimate: Refining Quantitative Regressions For Decomposition Analyses In Southeast Nebraska, Jenna L. Alexander

Department of Anthropology: Theses and Student Research

In forensic anthropology, the postmortem interval (PMI) is an estimation of the time elapsed from the moment of death to the point of discovery or examination. Contemporary approaches for estimating PMI have sought to refine broad quantitative regressions by addressing variance among intrinsic and extrinsic influences of decomposition at a regional level. Southeast Nebraska and the broader Great Plains region encompass one of the most influential agricultural ecosystems, featuring a unique climate type and a diverse spectrum of vertebrate scavengers. While there has been minimal research addressing how the biogeoclimatic conditions of Nebraska affect predicted estimates for PMI using known …


Literature Review: Parkinson's Disease And Non-Motor Symptoms, With A Focus On Constipation And Potential Therapeutics, Daria Smirnova Dec 2024

Literature Review: Parkinson's Disease And Non-Motor Symptoms, With A Focus On Constipation And Potential Therapeutics, Daria Smirnova

ALL - Honors Theses

Parkinson’s Disease (PD) is a progressive neurodegenerative disorder that tends to affect elderly individuals and is most commonly associated with the emergence of motor symptoms such as tremors, stiffness, and bradykinesia. However, non-motor symptoms (NMS), such as gastrointestinal (GI) issues, namely constipation, are also prevalent, and deeply affect the lives of individuals suffering with the disease. Among these, constipation stands out as one of the most common and frustrating problems for patients, typically arising from a variety of interrelated factors including disruptions in the autonomic nervous system (ANS), diminished dopamine activity, gut microbiota imbalances, inflammation, and side effects from PD …


The Identity Of A Gymnast: How Health, Wellbeing, And Injury Become Embodied In The Identity Of Collegiate Gymnasts, Skyler M. Yakes Oct 2024

The Identity Of A Gymnast: How Health, Wellbeing, And Injury Become Embodied In The Identity Of Collegiate Gymnasts, Skyler M. Yakes

LSU Master's Theses

Gymnastics scholarship has traditionally focused on the physicality of the sport and what the body can and cannot do. This research expands upon gymnastics scholarship by exploring the individual experiences and histories of college gymnasts in the United States through a series of interviews. The goals of this research are to better understand the gymnastics experience and to explore health and wellbeing in gymnastics as it pertains to the formation of a gymnast’s identity. A combined approach using medical anthropology and anthropology of sport serves as a guiding framework for analyzing interview data. Definitions of health and wellbeing change between …


Physiology Of Pe'a And Malu: Biocultural Case Studies Of Endocrine And Immune Responses To Samoan Tatau, Christopher D. Lynn, Tomasz Nowak, Courtney Manthey, Michael Muehlenbein Oct 2024

Physiology Of Pe'a And Malu: Biocultural Case Studies Of Endocrine And Immune Responses To Samoan Tatau, Christopher D. Lynn, Tomasz Nowak, Courtney Manthey, Michael Muehlenbein

Pacific Journal of Health

Tattooing has become a prominent form of body modification worldwide since the 20th century, leading to a revival of traditional hand-tap techniques, especially those from Samoa. The Samoan traditional pe’a (male tattoo) and malu (female) are distinctive, as they are administered by hand-tap tools in open-air bungalows and are to be completed in a short period of time, usually 1-2 days for the malu and a week to a month for the pe’a. This study involved systematically collecting saliva samples from participants undergoing traditional Samoan tattooing practices facilitated by Sulu’ape Tatau in Apia, Samoa. The Sulu’ape Tatau lineage …


Incisal Trait Variations Between Javanese And Chinese-Indonesians In Surabaya, Rahmat Avianto, Sayf Muhammad Alaydrus, Myrtati Dyah Artaria, Yao-Fong Chen Aug 2024

Incisal Trait Variations Between Javanese And Chinese-Indonesians In Surabaya, Rahmat Avianto, Sayf Muhammad Alaydrus, Myrtati Dyah Artaria, Yao-Fong Chen

Journal of Dentistry Indonesia

Human teeth are unique since one population’s dental pattern might differ from another. Such specific dental characteristics, such as the incisor, are observable in each dentition. Objective: his study analyzed the population differences in Javanese and Chinese-Indonesian populations through observations of the incisal traits, namely winging, shoveling, and double shoveling. Methods: 50 dental casts (76 Javanese samples and 74 Chinese- Indonesian samples) were obtained from Dr. Myrtati Dyah Artaria’s private collection, stored in the Faculty of Medicine, Universitas Airlangga. The traits were observed and scored using the Arizona State University Dental Anthropology System (ASUDAS) and analyzed statistically using crosstab …


Dental Modification Among The Classic Maya Of Chac Balam And San Juan, Ambergris Caye, Belize, Katherine Kelly Aug 2024

Dental Modification Among The Classic Maya Of Chac Balam And San Juan, Ambergris Caye, Belize, Katherine Kelly

Honors Theses

Perceptions of beauty and health are embedded within everyday actions, even a simple smile. How do dental modification practices among the Classic Maya from Ambergris Caye, Belize relate to these perceptions and a person’s identity and status? This thesis analyzes the practice of notching, filing, and placing inlays in maxillary incisors and canines through a qualitative analysis of Classic period AD 250-1000 Maya teeth from the sites of San Juan and Chac Balam. A lack of patterns related to sex, socioeconomic status, and the type of modification in the dentition of five individuals, including two males, two females and one …


Sex Differences In The Diets Of Forest-Dwelling Baboons (Papio Anubis), Kara Hartunian Aug 2024

Sex Differences In The Diets Of Forest-Dwelling Baboons (Papio Anubis), Kara Hartunian

Theses and Dissertations

The ability to eat and switch between many food sources is an adaptative feeding strategy utilized for meeting nutritional needs across different environments, seasons, and physiological conditions. Baboons (genus Papio) excel at both dietary flexibility and foraging selectively, and consequently have one of the most widespread geographic distributions in the Order. To further expand to our understanding of baboon feeding ecology, I analyzed foraging activity and the nutritional characteristics of the diets of the relatively understudied rainforest baboons (Papio anubis) living in Kibale National Park, Uganda. I also investigated if there are differences in food type choice …


Social Identity And Personhood At An Early Byzantine Cemetery: Late Antique Child Burials At Syedra, Turkiye., Mekenzie Riley Davis Aug 2024

Social Identity And Personhood At An Early Byzantine Cemetery: Late Antique Child Burials At Syedra, Turkiye., Mekenzie Riley Davis

Electronic Theses and Dissertations

Bioarchaeological studies of children in the past have proliferated in recent years and illustrate the informational depths accessible through investigations of mortality, age, and health and disease. Alongside analyses of childhood stress and mortality, the mortuary treatment of children provides critical insight into the social structures and identity formation processes that individuals or groups are subject to in life. This thesis will investigate the intersections of childhood, gender and sex, space, and mortuary treatment as seen in a Byzantine cemetery comprised primarily of children at the site of Syedra, Türkiye through bioarchaeological and proteomic analysis. Specifically, it seeks to explore …


Seed Dispersal By Martu Peoples Promotes The Distribution Of Native Plants In Arid Australia, Rebecca Bliege Bird, Douglas Bird, Christopher T. Martine, Chloe Mcguire, Leanne Greenwood, Desmond Taylor, Tanisha M. Williams, Peter M. Veth Jul 2024

Seed Dispersal By Martu Peoples Promotes The Distribution Of Native Plants In Arid Australia, Rebecca Bliege Bird, Douglas Bird, Christopher T. Martine, Chloe Mcguire, Leanne Greenwood, Desmond Taylor, Tanisha M. Williams, Peter M. Veth

Faculty Journal Articles

Commensal relationships between wild plants and their dispersers play a key ecological and evolutionary role in community structure and function. While non-human dispersers are often considered critical to plant recruitment, human dispersers have received much less attention, especially when it comes to non-domesticated plants. Australia, as a continent historically characterized by economies reliant on non-domesticated plants, is thus a key system for exploring the ecological role of people as seed dispersers in the absence of agriculture. Here, we utilize a controlled observation research design, employing ecological surveys and ethnographic observations to examine how seed dispersal and landscape burning by Martu …


A Case Study Of Endocrine And Immune Responses To Traditional Hand-Tap Tattooing, Lauren A. Landgraf, Tomasz Nowak, Jeffrey Gassen, Michael Muehlenbein, Christopher D. Lynn Jul 2024

A Case Study Of Endocrine And Immune Responses To Traditional Hand-Tap Tattooing, Lauren A. Landgraf, Tomasz Nowak, Jeffrey Gassen, Michael Muehlenbein, Christopher D. Lynn

Pacific Journal of Health

Tattooing is a stressor that could have adaptive benefits. Previous research indicates that endocrine and immune systems adjust to the stress of modern electric tattooing over lifetime experience, but it is unclear how these systems react to traditional hand-tap tattooing. The objective of this study was to explore how the body responds to this intense cultural stressor through examining traditional tattooing in Samoa, where saliva samples were collected throughout the first day from a Samoan man receiving the tattoo. Morning elevations and diurnal profiles of cortisol, C-reactive protein (CRP), secretory immunoglobulin A (sIgA), and bacteria killing activity (BKA) are described, …


Female Foragers Sometimes Hunt, Yet Gendered Divisions Of Labor Are Real: A Comment On Anderson Et Al. (2023), The Myth Of Man The Hunter, Vivek V. Venkataraman, Jordie Hoffman, Kyle Farquharson, Helen Elizabeth Davis, Edward H. Hagen, Raymond B. Hames, Barry S. Hewlett, Luke Glowacki, Haneul Jang, Robert Kelly, Karen Kramer, Sheina Lew-Levy, Katie Starkweather, Kristen Syme, Duncan N. E. Stibbard-Hawkes Jul 2024

Female Foragers Sometimes Hunt, Yet Gendered Divisions Of Labor Are Real: A Comment On Anderson Et Al. (2023), The Myth Of Man The Hunter, Vivek V. Venkataraman, Jordie Hoffman, Kyle Farquharson, Helen Elizabeth Davis, Edward H. Hagen, Raymond B. Hames, Barry S. Hewlett, Luke Glowacki, Haneul Jang, Robert Kelly, Karen Kramer, Sheina Lew-Levy, Katie Starkweather, Kristen Syme, Duncan N. E. Stibbard-Hawkes

Department of Anthropology: Faculty Publications

Gendered divisions of labor are a feature of every known contemporary hunter-gatherer (forager) society. While gender roles are certainly flexible, and prominent and well-studied cases of female hunting do exist, it is more often men who hunt. A new study (Anderson et al., 2023) surveyed ethnographically known foragers and found that women hunt in 79% of foraging societies, with big-game hunting occurring in 33%. Based on this single type of labor, which is one among dozens performed in foraging societies, the authors question the existence of gendered division of labor altogether. As a diverse group of hunter-gatherer experts, we find …


The Evolution Of Body Posture In The Sagittal Plane In The Sensitive Growth Period Of Children And Adolescents Undergoing Individual Scoliosis Therapy: A Pilot Study, Barbara Rosołek, Katarzyna Smółka, Diana Celebańska, Monika Szarajew, Anna Zwierzchowska Jun 2024

The Evolution Of Body Posture In The Sagittal Plane In The Sensitive Growth Period Of Children And Adolescents Undergoing Individual Scoliosis Therapy: A Pilot Study, Barbara Rosołek, Katarzyna Smółka, Diana Celebańska, Monika Szarajew, Anna Zwierzchowska

Baltic Journal of Health and Physical Activity

Introduction: The shape of the spine in the sagittal plane undergoes evolution, which occurs specifically in children and adolescents with idiopathic scoliosis (IS). The aim of the study was to verify the variability of body features and indicators in relation to the features and parameters of body posture in children and adolescents with IS. Materials and Methods: 61 measurements of children and adolescents (three age groups) with IS were collected. Body height, body weight, waist circumference, hip circumference, scoliosis major curve angle, thoracic kyphosis angle, lumbar lordosis angle, spine length, and pelvic tilt were measured. BMI and WHtR were calculated. …


Identification Of Mandibular And Maxillary Molars Of Old World Monkeys (Primates, Cercopithecidae) Using 3d Geometric Morphometrics, Eric John Mazelis Jun 2024

Identification Of Mandibular And Maxillary Molars Of Old World Monkeys (Primates, Cercopithecidae) Using 3d Geometric Morphometrics, Eric John Mazelis

Dissertations, Theses, and Capstone Projects

The present study is an attempt to take steps towards quantifying 3D molar shapes of the primate family Cercopithecidae to construct a framework for the automation of identifying the anatomical position and taxonomic affiliations of isolated molars. I introduce a new landmark protocol and present a proposed workflow model which can be applied in the future. For the purpose of this study, I collected and compiled the largest sample of 3D surface scans of varying wear grades of all six cercopithecid molar positions (i.e., M1-M3 and M1-M3). The sample comprises 2641 specimens from …


Evolution Of The Extant And Fossil Colobinae (Primates, Cercopithecidae), Julia L. Arenson Jun 2024

Evolution Of The Extant And Fossil Colobinae (Primates, Cercopithecidae), Julia L. Arenson

Dissertations, Theses, and Capstone Projects

The Colobinae (leaf-eating monkeys) are one of two crown cercopithecoid subfamilies along with the Cercopithecinae (cheek-pouch monkeys). They are today represented by a diverse modern radiation comprising two reciprocally monophyletic geographic subtribes, the African Colobina and the Asian Presbytina, which are collectively united by shared adaptations to folivory and arboreality. In addition, the colobine fossil record documents a taxonomically and ecologically diverse, geographically widespread radiation from the late Middle Miocene onwards. Fossil colobines exhibit an array of body sizes, craniofacial morphologies, postcranial adaptations, and dental dietary signals that exceeds those of the modern radiation and are also widespread over Africa, …


Exploring The Evolution Of Altruistic Punishment Using A Pde Model For Multilevel Selection, Daniel Cooney May 2024

Exploring The Evolution Of Altruistic Punishment Using A Pde Model For Multilevel Selection, Daniel Cooney

Biology and Medicine Through Mathematics Conference

No abstract provided.


Evaluating Neanderthal Depopulation With Direct Neanderthal And Châtelperronian Radiocarbon Data, Thomas K. Lyman May 2024

Evaluating Neanderthal Depopulation With Direct Neanderthal And Châtelperronian Radiocarbon Data, Thomas K. Lyman

Honors Thesis

Homo sapiens neanderthalensis (Neanderthals) inhabited Eurasia approximately 350,000 years ago before experiencing population decline and disappearing from the archaeological record around 40,000 years ago (Yaworsky et al. 1). Radiocarbon dating has played a major role in establishing the timing of the last Neanderthals by both dating their skeletal remains and animal bones associated with their material culture. Widely discussed in the context of the last Neanderthals are the Châtelperronian stratigraphic layers as they possibly contain the last of Neanderthal material culture in regions of France and Spain. Whether the Châtelperronian should be attributed to Neanderthals or Anatomically Modern Humans (AMHs) …


Rapid Increase Of Female But Not Male Obesity: Analysis Of The 2023 Vanuatu Health Transition Project Survey On Aneityum, Matthew Christian, Olivia Lasalle, Zhiqiao Huang, Hannah Chen, Ricky Chen, J. Koji Lum May 2024

Rapid Increase Of Female But Not Male Obesity: Analysis Of The 2023 Vanuatu Health Transition Project Survey On Aneityum, Matthew Christian, Olivia Lasalle, Zhiqiao Huang, Hannah Chen, Ricky Chen, J. Koji Lum

Binghamton University Undergraduate Journal

Globally, obesity rates are continuing to increase and countries in the midst of modernization are most vulnerable. Developing nations are undergoing a health transition alongside rapid economic modernization. The nation of Vanuatu, like other Pacific island countries, is experiencing such a transition marked by decreased cases of infectious disease and increased incidence of chronic and non-communicable diseases. Aneityum is a small and sparsely populated island in Vanuatu and is behind more developed islands in its transition. This present study is the latest in a multi-year project examining health in Vanuatu as it undergoes a health transition with an increased prevalence …


Chromosome 7 Microdeletions: A Literature Review, Catherine Davi May 2024

Chromosome 7 Microdeletions: A Literature Review, Catherine Davi

ALL - Honors Theses

Microdeletions, deletions of part of a chromosome that are too small to be detected by light microscopy using conventional cytogenetic methods, have become a hot topic for geneticists over the past decade or so. Occurring in around one in every 4000 live births, some of these microdeletions do not allow for a viable offspring, while others have distinctive developmental consequences. Many of the genes on chromosome 7 play a large role in the early development of the head, face, and limbs and more generally on cell growth and division (Bethesda 2022). This research study reviews known microdeletions on the seventh …


Bilateral Asymmetry In The First Metacarpal: The Influence Of Handedness In Humans And Non-Human Primates, Lucyna A. Bowland May 2024

Bilateral Asymmetry In The First Metacarpal: The Influence Of Handedness In Humans And Non-Human Primates, Lucyna A. Bowland

Graduate Theses and Dissertations

Muscle attachment sites (entheses) are often used to infer soft tissue anatomy and reconstruct behaviors within skeletal populations, but there remains a significant debate about whether and to what degree muscle use is accurately reflected in bony morphology. One of the most difficult problems in establishing the relationship between variation in muscle use and entheseal development is the inability to exclude a variety of external factors thought to influence enthesis development, including age, sex, body mass, and activity patterns. One way around this is to take advantage of the fact that humans are handed (preferentially using one hand over another, …


Evaluating The Integration Of Traditional And Western Medicine In Rural Ghana: The Role Of Healers And The Government, Teresa Nicole Lemon May 2024

Evaluating The Integration Of Traditional And Western Medicine In Rural Ghana: The Role Of Healers And The Government, Teresa Nicole Lemon

Poster Presentations

A question of pressing importance for the healthcare system in Ghana is the integration between biomedicine, which is unreachable for many rural citizens, and traditional medicine, which fills in the gaps in access for rural and non-rural citizens seeking care and is utilized by 70% of the population. The WHO promotes integrated health systems and created strategies to assist governments in their efforts.

The Ghanaian government did create policies to aid in integration, but their attempt to integrate was unsuccessful. This, along with other factors, has led some scholars to consider the government’s efforts as “tokenistic”; however, they do not …


Bipedalism Is A Balancing Act: Talus Landmarking In Facultative Bipedal Primates, Anita Patane May 2024

Bipedalism Is A Balancing Act: Talus Landmarking In Facultative Bipedal Primates, Anita Patane

Undergraduate Honors Theses

Obligate bipedal locomotion, mandatorily walking on two legs, is vastly important as it is the fundamental precursor to the human lineage; it precedes tool usage and language. Chimpanzees, our closest living ancestors for the human ancestral condition, are often the proxy and are the dominant subject of human bipedalism studies. There are additional species, such as arboreal Black Spider Monkeys (Ateles paniscus) who habitually travel through the trees bipedally. These facultative bipedal primates (FBP) introduce a new lens to how modern human talus and calcaneus’ mobility has adapted to environmental shifts such as the transition from arboreal to …


The Role Of The Patterning Cascade Model In Human Mandibular Premolar Variation, Molly Militello May 2024

The Role Of The Patterning Cascade Model In Human Mandibular Premolar Variation, Molly Militello

Graduate Theses and Dissertations

Human mandibular premolars represent a morphologically transitional tooth class, possessing a relatively caniniform third premolar (P3) and a more molariform fourth premolar (P4). Marked variation in cusp height and lingual cusp number are characteristics unique to these postcanine teeth. The aim of this study is to determine if human premolar variation aligns with predictions outlined by the patterning cascade model (PCM). The PCM posits that tooth size and enamel knot spacing/surrounding inhibitory fields (approximated by cusp tip positioning) play a role in determining ultimate crown morphology, providing a predictive framework for examining crown variation within and between individuals. While there …


Adults Matter Too: An Examination Of State Adult Missing Persons Policies And Procedures To Implement A Best Practices Handbook, Hunter Smith May 2024

Adults Matter Too: An Examination Of State Adult Missing Persons Policies And Procedures To Implement A Best Practices Handbook, Hunter Smith

Honors Theses

The most recent estimates put the number of active missing person records at 97,127. Over the past eight years, child active records have decreased by 2,530, while adult active records have increased by 14,696. While there is no clear explanation for this trend, a common theory is that there are multiple federal and state laws requiring the entry of missing people under the age of 2; however, very few, if any, extend to adults. Additionally, there is a lack of standardization across available policies and procedures for where these cases should be reported, the time frame for doing so, and …


Numerical Variations In The Thoracic And Lumbar Vertebrae Within The John A. Williams Skeletal Collection, Western Carolina University, Cullowhee, Nc (Usa), Leanna Annette Sanford May 2024

Numerical Variations In The Thoracic And Lumbar Vertebrae Within The John A. Williams Skeletal Collection, Western Carolina University, Cullowhee, Nc (Usa), Leanna Annette Sanford

Department of Anthropology: Theses and Student Research

This research is on how human variation can lead to the identification of remains based on skeletal variation. The data were collected by performing a morphoscopic trait study of the John A. Williams (J.A.W.) Documented Human Skeletal Collection at Western Carolina University in Cullowhee, NC (USA). Morphoscopic traits are nonmetric traits, visually identified using the knowledge of osteology. The study was performed to study variation of the vertebral column, specifically focusing on morphoscopic traits of the thoracic and lumbar vertebrae. The focus of this research is centralized on the presence of numerical variations in the vertebral column such as eleven …


The Osteobiography Of Human Remains From The Seaview And Indian Town Trail Archaeological Sites, Maggie M. Klemm May 2024

The Osteobiography Of Human Remains From The Seaview And Indian Town Trail Archaeological Sites, Maggie M. Klemm

Department of Anthropology: Theses and Student Research

Extensive site surveys and excavations on the Island of Barbuda led by Sophia Perdikaris have identified over 62 sites spanning from the Archaic time period to Historic times. Over the last 18 years, these multidisciplinary teams have focused on mapping all sites and performing rescue excavations on sites threatened by sea level rise, erosion or development. Two such sites are the Saladoid site of Seaview (BA016) and the Troumassoid site of Indian Town Trail (BA01). The dunes surrounding the site of Seaview receive the brunt of storms and hurricanes. In 1998 hurricane Georges exposed skeletal material now part of the …


Lucy Through The Years -- Temporal Trends In The Australopithecus Dentition, Olivia Ervin May 2024

Lucy Through The Years -- Temporal Trends In The Australopithecus Dentition, Olivia Ervin

Anthropology Undergraduate Honors Theses

Australopithecus afarensis, an extinct human ancestor (ca. 3.75 – 2.95 million years ago) first distinguished in 1978, has a dense fossil record. Until recently, A. afarensis fossils were primarily known from two locations, Laetoli, Tanzania, and Hadar, Ethiopia, that are approximately 1750 kilometers apart. Additionally, there is no temporal overlap between the sites; fossils from Laetoli are older than 3.5 Ma and those from Hadar stretch from 3.4 – 3.0 Ma. For some tooth positions, the Laetoli and Hadar fossils subtly differ in size and shape. Previous research indicated that some of these differences could be attributable to evolutionary change, …


Increases In Regional Brain Volume Across Two Native South American Male Populations, Nikhil N. Chaudhari, Phoebe E. Imms, Nathan F. Chowdhury, Margaret Gatz, Benjamin Trumble, Wendy J. Mack, E. Meng Law, M. Linda Sutherland, James D. Sutherland, Christopher J. Rowan, L. Samuel Wann, Adel H. Allam, Randall C. Thompson, David E. Michalik, Michael I. Miyamoto, Guido Lombardi, Daniel Cummings, Edmond Seabright, Sarah Alami, Angela R. Garcia, Daniel E. Rodriguez, Raul Quispe Gutierrez, Adrian J. Copajira, Paul L. Hooper, Kenneth Buetow, Jonathan Stieglitz, Michael D. Gurven, Gregory S. Thomas, Hillard Kaplan, Caleb E. Finch, Andrei Irimia Apr 2024

Increases In Regional Brain Volume Across Two Native South American Male Populations, Nikhil N. Chaudhari, Phoebe E. Imms, Nathan F. Chowdhury, Margaret Gatz, Benjamin Trumble, Wendy J. Mack, E. Meng Law, M. Linda Sutherland, James D. Sutherland, Christopher J. Rowan, L. Samuel Wann, Adel H. Allam, Randall C. Thompson, David E. Michalik, Michael I. Miyamoto, Guido Lombardi, Daniel Cummings, Edmond Seabright, Sarah Alami, Angela R. Garcia, Daniel E. Rodriguez, Raul Quispe Gutierrez, Adrian J. Copajira, Paul L. Hooper, Kenneth Buetow, Jonathan Stieglitz, Michael D. Gurven, Gregory S. Thomas, Hillard Kaplan, Caleb E. Finch, Andrei Irimia

ESI Publications

Industrialized environments, despite benefits such as higher levels of formal education and lower rates of infections, can also have pernicious impacts upon brain atrophy. Partly for this reason, comparing age-related brain volume trajectories between industrialized and non-industrialized populations can help to suggest lifestyle correlates of brain health. The Tsimane, indigenous to the Bolivian Amazon, derive their subsistence from foraging and horticulture and are physically active. The Moseten, a mixed-ethnicity farming population, are physically active but less than the Tsimane. Within both populations (N = 1024; age range = 46–83), we calculated regional brain volumes from computed tomography and compared …


An Investigation Of Bone Preservation As A Result Of Environmental And Cultural Variables In Mortuary Contexts, Adyn Hallahan Apr 2024

An Investigation Of Bone Preservation As A Result Of Environmental And Cultural Variables In Mortuary Contexts, Adyn Hallahan

Honors Theses

Stable isotope analysis in bioarchaeology of human bone is generally used to reconstruct diet or migratory patterns of certain populations. Although this type of analysis is now standard practice, little research has been done regarding how cultural and mortuary practices may affect chemical composition of bone. This study aims to determine whether different simulated mortuary contexts have an effect on stable isotope levels in bone, using seven pig rib bone samples as proxy for human bone. In addition, macroscopic and microscopic observations are used to assess preservation and taphonomic processes. One of the samples served as a control, not being …


Limb Stiffness Increases With Hopping Frequency And Sprinting Speed In Elite Sprinters, Laurent Dorvilier Apr 2024

Limb Stiffness Increases With Hopping Frequency And Sprinting Speed In Elite Sprinters, Laurent Dorvilier

ALL - Honors Theses

During sprinting and hopping, the lower limbs act as a mechanical spring as it compresses and recoils to store and release elastic potential energy during each step. This is important because for individuals such as high performing sprinters, the stiffer the spring acting limb is, the more efficient it will be for the sprinter to maintain maximal velocity and optimal performance. The basis of this experiment lies in the fact that the mechanics of the lower limbs are modeled using to the mechanics of a spring, therefore, to calculate an approximate limb stiffness, Hooke’s Law can be used. Hooke’s Law …


Prevalence Of Drifting Osteons Distinguishes Human Bone, Katherine M. French, Sophia R. Mavroudas, Victoria M. Dominguez Feb 2024

Prevalence Of Drifting Osteons Distinguishes Human Bone, Katherine M. French, Sophia R. Mavroudas, Victoria M. Dominguez

Publications and Research

The histological, or microscopic, appearance of bone tissue has long been studied to identify species-specific traits. There are several known histological characteristics to discriminate animal bone from human, but currently no histological characteristic that has been consistently identified in human bone exclusive to other mammals. The drifting osteon is a rare morphotype found in human long bones and observationally is typically absent from common mammalian domesticates. We surveyed previously prepared undecalcified histological sections from 25 species (human n = 221; nonhuman primate n = 24; nonprimate n = 169) to see if 1) drifting osteons were indeed more common in …