Digital Commons Network^™

Analog Temperature Control Circuit For A Thin-Film Piezoelectric-On-Substrate Microelectromechanical Systems Oscillator, Heather Hofstee

Honors Undergraduate Theses

The objective and motivation for this project is to design a low-power, low-noise oven-control circuit to optimize the stability of a MEMS oscillator. MEMS oscillators can be fabricated using conventional semiconductor manufacturing methods and can often be assembled in packages smaller than those of traditional crystal oscillators. However, one of their largest disadvantages currently is their high temperature coefficient of frequency (TCF), causing MEMS oscillators to be especially sensitive to temperature changes. Hence, this project focuses on designing a printed circuit board that will allow the user to manually tune a current passing through a resonator wire-bonded to the board …

Simultaneous Use Of Physiological Sensors For A Neuromarketing Task, Charles Descheneaux

Electronic Theses and Dissertations

Physiological measurements have become more popular in Psychological research over the past ten years. These advancements allowed different objective sensors to become another measurement tool in a scientific arsenal of collecting data. Traditionally, performance and after task subjective measures have been used for most studies in Psychological research. With the opportunity to use these subjective measures along with objective measures, more data can be collected during research and therefore potentially produce better quality conclusions. Eye Tracking (ET), functional near infrared (fNIR), transcranial Doppler ultrasound (TCD), electrocardiogram (EKG) and the electroencephalogram (EEG) have shown great promise in their ability to produce …

Simulating Human Pleura Performance In Medical Training Using Measured Tissue Mechanical Properties, Jack Norfleet

Electronic Theses and Dissertations

Medical simulations provide hands-on training at various levels of medical expertise. Yet these simulators fail to accurately mimic the look, feel and behavior of human tissue. Applying measured mechanical properties from human cadaver tissues promises to improve the fidelity of simulated tissue behaviors when subjected to medical procedures. Samples of human parietal pleura were tested under uniaxial tension to failure and measured characteristics were replicated in synthetic pleura. Context specific parameters were then collected and compared between human pleura and the new synthetics. These comparisons tested the hypothesis; H1 Gaps exist between synthetic and human pleura performance, H2: Human tissue …

Shoreline Characterization For Northern Indian River Lagoon And Mosquito Lagoon, Melinda J. Donnelly, Linda Walters, Michelle Shaffer

CEELAB Research Data

The purpose of this project was to evaluate the current conditions of estuarine shorelines in Mosquito Lagoon and northern Indian River. The shoreline assessment is the first phase in the development of a shoreline restoration suitability model for the northernmost section of the Indian River Lagoon system, in order to better conserve and restore shorelines and promote sustainable use of natural resources. The shoreline survey methodology was developed by St. Johns River Water Management for northeastern Florida and was adapted for applications in Brevard and Volusia Counties. Between November 2017 through June 2018, shoreline evaluations were completed at transects located …

Oyster Storytelling Yoga, Linda Walters, Violette Gibbs, Roel Fleuren

CEELAB Outreach Materials

No abstract provided.

Rewriting Patriarchal Norms In Academia: Invitational Rhetoric In A Crowdsourced Survey, Rachel Molko

Electronic Theses and Dissertations

This thesis seeks to understand the how texts are constructed to forward feminist communicative objectives through a case study of Dr. Karen Kelsky’s "A Crowdsourced Survey of Sexual Harassment in the Academy." In this research, sexual harassment is understood as an act of power, sexual in nature, enacted by faculty or staff (employed or contracted in different capacities) in their relations with other faculty or staff, who are often lower ranking. By adopting invitational rhetoric as a theoretical framework, this thesis examines the way Dr. Karen Kelsky's crowdsourced survey creates the space to articulate and elevate often suppressed personal testimony …

Leviathan: Ontogeny Of Salvation, Faren L. Lejeune

Honors Undergraduate Theses

Wrought from clay and hardened by fire, the narrative sculptures which comprise this body of work are dualistic symbols of life’s brutality and nobility. The philosophical import of the opus is manifested through the convergence of material, process, and form—to instantiate truth and initiate analysis. In my interdisciplinary research, I have come to understand leviathan as an exceptional, universalizing symbol of life's duality and the locus of Man's potential for honorable distinction. I invoke the name in order to instigate reflection upon the concept of the world serpent as a symbolic representation of existential nuance.

Anything But Crazy: How American Musical Theatre Can Change Societal Stigmas Against Mental Illnesses, Benjamin Walton

Honors Undergraduate Theses

There is a societal stigma that villainizes or degrades anyone diagnosed or associated with any mental illness. While many different forms of media have attempted to destroy this stigma through psycho-centric narratives, I wanted to argue that musical theatre has the greatest potential as a live entertainment source to deconstruct and reduce the stigma surrounding mental illness. For my research, I theorized that musical theatre can most effectively change societal stigma about mental illness by communicating a clear understanding of the disease through music, and achieving popularity in the public eye longer than other live forms of theatre. I chose …

Public School Teacher Support Of Transgender Students, Phoebe Singletary

Honors Undergraduate Theses

Using qualitative interviews, this study explored public school support of transgender students using questions concerning their knowledge, ideas of what inclusion looks like, level of preparation for teaching transgender students, and openness to learning new information concerning best practices. This study aims to fill gaps in the existing research concerning experiences of transgender public school students, examining teacher support for the sake of helping determine policy steps and education that would best help transgender students looking for inclusive education. Emerging themes included generalized acceptance, fear of teaching outside curriculum, emphasis placed on student needs, and teachers' desires to learn more. …

Reconstructing Ancient Burials At Loma Don Genaro, Alexandra M. Kulenguski

Honors Undergraduate Theses

This thesis reconstructs and analyzes a Classic period (AD 250-800) burial collection from the archaeological site of Loma Don Genaro in Oaxaca, Mexico. This research aims to address two main questions: 1.) What information about the burial collection is available through the archaeological archives? 2.) What does this information tell us about social organization during the Classic period at Loma Don Genaro? In order to address these questions, the following objectives were explored: to reconstruct ancient burials using archival material; to describe the burial demography across the site; to describe variation in grave goods; to relatively date and order the …

Investigation Of The Effects Of Cobimetinib On Neurofibromatosis Type 2 Model Schwannoma Cells, Konstantin Brnjos

Honors Undergraduate Theses

Neurofibromatosis type two (NF2) is a genetic disorder predisposing those affected to the development of multiple benign tumors in their central and peripheral nervous systems. This is due to the absence of the tumor suppressor protein merlin, which is encoded by the NF2 gene. In nearly all NF2 cases, patients present with bilateral schwannomas of the vestibulocochlear nerve, in addition to other schwannomas throughout the central and peripheral nervous systems, as well as meningiomas and ependymomas. Currently, no therapeutic alternatives to surgical removal and radiation therapy are available for NF2 patients. This study investigated cobimetinib, an inhibitor of the often-deregulated …

Climate Modeling, Outgoing Longwave Radiation, And Tropical Cyclone Forecasting, Thomas Rechtman

Honors Undergraduate Theses

Climate modeling and tropical cyclone forecasting are two significant is- sues that are continuously being improved upon for more accurate weather forecasting and preparedness. In this thesis, we have studied three climate models and formulated a new model with a view to determine the outgoing longwave radiation (OLR) budget at the top of the atmosphere (TOA) as ob- served by the National Oceanic and Atmospheric Administration’s (NOAA) satellite based Advanced Very High Resolution Radiometer (AVHRR). In 2006, Karnauskas proposed the African meridional OLR as an Atlantic hur- ricane predictor, the relation was further proven in 2016 by Karnauskas and Li …

Mathematical Models Of Mosquito Populations, Hanna Reed

Honors Undergraduate Theses

The intent of this thesis is to develop ordinary differential equation models to better understand the mosquito population. We first develop a framework model, where we determine the condition under which a natural mosquito population can persist in the environment. Wolbachia is a bacterium which limits the replication of viruses inside the mosquito which it infects. As a result, infecting a mosquito population with Wolbachia can decrease the transmission of viral mosquito-borne diseases, such as dengue. We develop another ODE model to investigate the invasion of Wolbachia in a mosquito population. In a biologically feasible situation, we determine three coexisting …

Rebuilt And Remade: The Florida Citrus Industry, 1909-1939, James Padgett

Electronic Theses and Dissertations

Prior to orange juice concentrate, Florida citrus was already an industrialized agricultural sector. This thesis explores the early-20th-century Florida citrus industry and demonstrates that contemporary farming practices were influential in advancing how citrus was produced, processed, worked, marketed, and regulated in early-20th-century Florida. Restarted after devastating freezes in 1894-1895, resolute Florida growers rebuilt their groves into marvels of large-scale citrus fruit production. Continuing a legacy in experimental crossbreeding, improved varieties of citrus were developed to lengthen the season and markets. Advocated by nurserymen and university educators, biological innovation helped the citrus thrive in the 1910s and 1920s from adverse weather …

Characterizing Biogeochemical Shifts In Two Salix Caroliniana Michx. Encroached Freshwater Subtropical Marshes, Janet Ho

Electronic Theses and Dissertations

Shrub encroachment is a common disturbance in wetlands, but little is known about how shrub encroachment impacts functions such as carbon (C) storage and nitrogen (N) cycling. The objective of this thesis was to identify differences in physiochemical properties (within soil, water and leaf tissue) and biogeochemical processes (soil respiration, enzyme activity, litter decomposition, and N cycling) in two subtropical freshwater marshes encroached by coastal plain willow (Salix caroliniana Michx.). Two study regions (Moccasin Island and Lake Apopka) were selected because of their location in the St. John's River watershed and their unique histories and hydroperiod, allowing for an investigation …

Examining The Influence Of Personal And Environmental Factors On Treatment Outcomes In Opioid Dependent Medication-Assisted Treatment Patients., Vierne Placide

Electronic Theses and Dissertations

Opioid abuse has become a global epidemic and is now a huge public health concern here in the US. Non-medicinal use of opioid prescription drugs is at the forefront of the epidemic and considered the "gateway" drug to other illicit opioid use. As opioid prescribing has increased over the last decade in the US, so has opioid-related deaths, surpassing car accidents and suicide as the leading cause of injury-related deaths. Medication assisted treatment (MAT) is fundamental in decreasing opioid abuse overdose and mortality. Therefore, the research study aims to determine if counseling adherence, opioid abstinence, and retention in MATs are …

Victim-Group Legitimacy: An Argument For Extending Our Understanding Of Legitimacy After Crisis, Cody Blake Wilson

International Crisis and Risk Communication Conference

Organizational legitimacy has been useful approach to studying relationship management in crisis. This presentation suggests an expansion of organizational legitimacy theory: victim-group legitimacy. Multiple recent cases of crisis involving historically marginalized groups (HMGs) suggest that organizations may not be fully prepared to respond to crises involving HMGs. Recent cases also suggest that publics now routinely see modern crises as chapters within larger marginalization narratives. Victim-group legitimacy acts as a framework for evaluating, interpreting, and responding to not only the crisis at hand, but the historical crisis between an organization and HMGs.

Impact Of Increased Green Turtle Nesting On Loggerhead Fitness, Amanda R. Carmichael

Honors Undergraduate Theses

Marine turtles exhibit strong fidelity to their nesting beaches, making the conservation of nesting beaches important for ensuring successful sea turtle populations. Conservation of these nesting beaches involves understanding how species interact with the environment and each other, and understanding how environmental change and population growth can affect the suitability of the nesting habitat. The Archie Carr National Wildlife Refuge (ACNWR) is unusual in its high density of sea turtle nesting by two species: green (Chelonia mydas) and loggerhead (Caretta caretta) turtles. The ACNWR in Melbourne Beach, Florida was established in 1991 due to the high density of loggerhead nesting, …

Health Insurance Status And Diabetes Management Practices Among Black Adults In The U.S., Luderve Rosier

Honors Undergraduate Theses

The purpose of this study was to investigate the relationship between health insurance status and diabetes management (in terms of medication adherence and physical activity levels) in Black adults based on socioeconomic factors. Data were harvested from the Sample Adult Questionnaires of the National Health Interview Survey (NHIS) between the years of 2010 and 2016. The survey questions that were collected included information about the participants' income, education level, insurance status, diabetes diagnosis, medication therapy and physical activity levels. This study employed the most recent version of the Statistical Package for Social Sciences (SPSS) software. The association between diabetes management …

Studies On E2 Conjugation Enzyme Partners Of Mulan E3 Ubiquitin Ligase, Rebekah J. Fitzpatrick

Honors Undergraduate Theses

Mulan is an E3 ubiquitin ligase embedded in the outer mitochondria membrane. Mulan’s participation in the ubiquitination process is conducted through its cytosol exposed RING finger domain, and its ability to modulate protein ubiquitination makes it a key player in mitochondrial and cellular homeostasis. Mulan is known to be involved in mitochondrial fission, fusion, mitochondrial stress, apoptosis, and Parkin-independent mitophagy. Dysregulation of Mulan in mice has been shown to correlate with human neurodegenerative disorders and heart disease. Accumulation of Mulan is predicted to be responsible for the motor neuron degeneration 2 (mnd2) phenotype in mutant mice through the deregulation of …

Split Deoxyribozyme Probe For Efficient Detection Of Highly Structured Rna Targets, Sheila Raquel Solarez

Honors Undergraduate Theses

Transfer RNAs (tRNAs) are known for their role as adaptors during translation of the genetic information and as regulators for gene expression; uncharged tRNAs regulate global gene expression in response to changes in amino acid pools in the cell. Aminoacylated tRNAs play a role in non-ribosomal peptide bond formation, post-translational protein labeling, modification of phospholipids in the cell membrane, and antibiotic biosynthesis. ^[1] tRNAs have a highly stable structure that can present a challenge for their detection using conventional techniques. ^[2] To enable signal amplification and lower detection limits, a split probe - split deoxyribozyme (sDz or BiDz) probe, which …

Reconstructing The Vocal Capabilities Of Homo Heidelbergensis, A Close Human Ancestor, Austin Blake Stanley

Honors Undergraduate Theses

The discovery of 5,500 Homo heidelbergensis fossil specimens at the Sima de los Huesos archaeological site in Spain has opened up the opportunity for research to be conducted on the vocal capabilities of this species. Previous research has revealed that the range of vowel sounds an individual can produce, known as the vowel space, is directly affected by the dimensions of the vocal tract. The vowel spaces of two hominins, Homo sapiens and Homo neanderthalensis, have been reconstructed through previous research. However, the vowel space of Homo heidelbergensis has not yet been reconstructed. In this research, I aim to …

Hopf Bifurcation Analysis Of Chaotic Chemical Reactor Model, Daniel Mandragona

Honors Undergraduate Theses

Bifurcations in Huang's chaotic chemical reactor system leading from simple dynamics into chaotic regimes are considered. Following the linear stability analysis, the periodic orbit resulting from a Hopf bifurcation of any of the six fixed points is constructed analytically by the method of multiple scales across successively slower time scales, and its stability is then determined by the resulting final secularity condition. Furthermore, we run numerical simulations of our chemical reactor at a particular fixed point of interest, alongside a set of parameter values that forces our system to undergo Hopf bifurcation. These numerical simulations then verify our analysis of …

Gender's Role In Spanish-Language Journalism- An Examination Of How Gender Plays In Hard Vs. Soft News, Victoria R. Elajami

Honors Undergraduate Theses

The inequality of women in the workforce has been an ongoing issue. The 19th amendment granted women the right to vote in 1920. Since then, women have continued to fight for their equality in its entirety. Specifically, in the 21st-century women continue to fight for equality in the work place. Studies have shown that the amount of women in the workplace has exponentially increased. In fact, “they caught up with men in the rates of higher-education graduation, they increased their training and representation in formerly male-dominated professional fields and they entered many previously male dominated occupations” (Vokić, 2017). However the …

Oyster Reef Restoration: Impacts On Infaunal Communities In A Shallow Water Estuary, Katherine P. Harris

Honors Undergraduate Theses

Oyster reefs are important estuarine ecosystems that provide habitat to many species including threatened and endangered wading birds and commercially important fishes and crabs. Infaunal organisms (i.e. small, aquatic animals that burrow in the sediment) are also supported by oyster reef habitats. Infaunal organisms are critical to marine food webs and are consumed by many important species that inhabit coastal estuaries. However, over the past century 85% of shellfish reef habitats have been lost, making restoration of these areas vital. Due to their important role in coastal food webs, infauna is hypothesized to be a strong indicator of habitat productivity …

Investigating The Role Of The Caspase-6 Cleavage Fragment Of Mutant Huntingtin In Huntington Disease Pathogenesis, Jourdan A. Mckinnis

Honors Undergraduate Theses

Huntington disease (HD) is a devastating and fatal neurodegenerative disease. At the moment, no disease modifying therapies are available, with only symptomatic treatment offered to alleviate psychiatric and some types of motor deficits. As a result, many people will continue to suffer and die from this disease. Small molecule therapies have failed to provide benefit in HD, necessitating more complex gene therapy approaches and the identification of less traditional therapeutic targets. A previous study demonstrated that preventing cleavage of the huntingtin (HTT) protein, the protein that when mutated causes HD, by caspase 6 (C6) at amino acid 586 prevents the …

Raman Spectroscopy Of The Skeleton Of The Coral Acropora Cervicornis, Zachary C. Shepard

Honors Undergraduate Theses

Coral reefs are an important element of marine ecosystem that are critical to maintain a healthy environment. Unfortunately, in recent years coral reefs are doing poorly and many in parts of the ocean are simply dying. Therefore, study of coral’s structural response to external loads could answer what will happen with their structures, while they exhibit different types of loading. Therefore, the proposition of using in-situ micro-Raman spectroscopy to study skeletons of Acropora cervicornis was used. Coral skeleton samples I subjected to mechanical loading studied their vibrational properties by exciting the material with 532nm visible light. A uniaxial compressive load …

Can Nox1 Activity Initiate Parkinson's-Like Pathology In An Enteroendocrine Cell Line?, Evan Adler

Honors Undergraduate Theses

Increased attention has been given to the gut lately in a number of conditions, from maintaining health via the use of probiotics to treating Autism Spectrum Disorder. Parkinson's Disease has a history with the gut starting with the Braak hypothesis, in which eminent researcher Heiko Braak observed that the spread of Parkinson's (PD) seemed to occur along either olfactory or enteric neurons prior to reaching the substantia nigra in the midbrain, where the classical disease symptoms become evident. Though this finding was largely ignored at the time, the possibility of a gut origin for PD has received interest lately as …

A Deviance Regulation Theory Intervention To Reduce Alcohol Problems Among First-Year College Students, Angelina V. Leary

Honors Undergraduate Theses

OBJECTIVE: An alcohol-drinking culture exists among first-time-in-college students, where many of these students come to their university relatively inexperienced with alcohol, which may increase alcohol-related consequences. Several interventions exist to combat this campus problem. The current study investigates the use of a Deviance Regulation Theory (DRT) intervention, presented in a web-based manner, to increase alcohol Protective Behavioral Strategies (PBS), such as monitoring drinks, using a designated driver, and drinking water in between alcoholic beverages, among college freshmen. METHOD: College freshmen participants (N = 157) completed web-based surveys examining alcohol behaviors once a week for six weeks. Participants were randomly …

Seeking Help For Children Who Have Experienced Trauma In Venezuela: A Literature Review Of School-Based Interventions And Teacher Recommendations, Maria P. Spinetti Rincon

Honors Undergraduate Theses

The main purpose of this research synthesis was to determine recommendations that promote the development of a trauma-informed approach in Venezuelan schools to address the traumatic effects of political unrest in young children through a systematic review of existent intervention programs. After conducting an initial search, four studies were identified that studied the effectiveness of an intervention program in schools targeting trauma in children younger than 14 years old.

Results showed that there were four categories that all studies incorporated. All intervention programs used an assessment tool to determine PTSD presence and symptomatology, as well as other domains that could …