Biological and Physical Anthropology Commons^™

Primate Olfaction: A Phylogenetic Analysis Of Cribriform Plate Morphology, Amber Cooper

Anthropology Undergraduate Honors Theses

Decreased olfaction, or smell, is a diagnostic characteristic of primates. Despite this, olfaction remains important for diet and social behaviors in primates. To assess how morphological changes impact olfactory-based behaviors between the two major clades of primates, Strepsirrhini and Haplorrhini, this study examined the surface area of the cribriform plate, the bony interface between the brain and nasal cavity. Previous work has found several functional associations between cribriform plate morphology and species diet/ ecology, making this structure possibly more reflective of a species reliance on olfaction in its environment. Primate social structure, such as average group size, mating system, and …

Reconstructing Bison And Mammoth Migration During The Late Pleistocene And Early Holocene Of Central Texas Using Strontium Isotopes, Joshua John Porter

Graduate Theses and Dissertations

During the Late Pleistocene (LP; past 130,000 years), over two-thirds of large mammal (>45kg) species went extinct globally. While the role of humans is hotly debated, the effect of these extinctions is growing clearer; the extinctions resulted in widespread and lasting faunal community reorganization. However, the impact of these extinctions on dietary and migratory behavior within faunal communities is unknown. Our study examines the impact of the megafaunal extinctions on the dietary and migratory behavior of surviving Bison individuals in Texas using carbon, oxygen, and strontium isotopes. Strontium isotopes are incorporated into mammalian enamel during their tooth development and …

Investigating The Mechanics And Chemistry Of Sickle Polish Development, Justin Jared Dubois

Graduate Theses and Dissertations

This series of experiments is designed to understand the development and chemistry of sickle gloss. Sickles are common in the archaeological record and have long been studied for their eponymous “sickle gloss”. There is debate as to how this gloss is formed. Five experimental sickles containing flint and novaculite blades were used to harvest high and low moisture content rye and common fescue and associated field weeds. The differences in the development of sickle gloss were examined. High moisture content plants create thick, smooth fields of polish with undulating, billowing margins at a higher developmental speed. Low moisture content plants …

Quantification Of Dental Fissures Through Occlusal Topography Analysis, Duru Erkan

Biological Sciences Undergraduate Honors Theses

Narrow, deep, and elaborate dental fissures are widely believed to increase the predisposition of enamel to develop carious lesions as these surfaces are thought to be ideal for cariogenic bacteria to adhere to. Therefore, dentists prescribe sealants as a preventative measure for patients with such fissures to avoid tooth decay. Yet to date, there is no objective data supporting the notion that fissure morphology actually affects caries susceptibility, nor is there a quantifiable, clinically practical method to characterize fissure patterns expected to increase risk of caries disease.

In this study, three new methods to quantitatively characterize fissure pattern in mandibular …

Tooth Crown Morphology And Testosterone Transfer In Female Members Of Opposite-Sex Dizygotic Twin Pairs, Randall Feezell

Graduate Theses and Dissertations

The twin testosterone transfer (TTT) hypothesis posits that females gestated with male co-twins develop more masculine phenotypes due to in-utero androgen exposure. Research has shown co-gestational effects to be associated with increased deciduous and permanent tooth size in females belonging to opposite-sex dizygotic twin pairs (OSF) as compared with females belonging to same-sex monozygotic (MZF) and dizygotic (SSF) twin pairs and female siblings. This study evaluates whether the TTT hypothesis explains patterns of dental morphological variation, namely differences between OSF and other females (SSF, MZF, female siblings) in a contemporary sample that includes both deciduous and permanent data. This work …

Moral Distress, Burnout, And Moral Injury In Healthcare Professionals, Sophia Gibson

Anthropology Undergraduate Honors Theses

For doctors and other health care professionals, experiences of care too often involve burnout and moral distress. Making both visible to begin addressing them takes up the main concern of my thesis. Burnout and moral distress swallow a life. Suddenly you aren’t going on that shopping trip with friends, you can forget about going to that movie or play. You are too tired to drag yourself out of bed, instead getting caught in a cycle of sleep and work with no time for a break or even to process what happened last shift. Who’s going to have a nice relaxing …