Digital Commons Network^™

The American Dream Short-Lived: The Decline Of Academic Achievement And College Confidence Through Acculturation, Perceptions Of Ethnic Discrimination, And Concerns With Confirming Stereotypes, Alexis N. Miller

Honors Undergraduate Theses

In this exploratory study, the goal was to examine patterns of perceived ethnic discrimination, stereotype confirmation, and acculturation within the context of a diverse, inclusive university. It was predicted that reported rates of perceived ethnic discrimination would be low, but the majority of students would still experience some type of discrimination at least once. The second hypothesis for this study was that higher levels of discrimination, acculturation and stereotype confirmation would result in lower levels of college self-efficacy and GPA. These factors were also predicted to be positively associated with each other as well. The personality trait, conscientiousness was predicted …

Mechanical Properties Of The Skeleton Of Acropora Cervicornis, Bridget Masa

Honors Undergraduate Theses

This research explores the instantaneous mechanical behavior of the skeleton of the critically endangered staghorn coral Acropora cervicornis. Both bleached and sanded skeletons were used in this experiment. The Raman spectroscopy test showed that there was no significant change in the Raman shift between the three branches tested. The shifts were nearly identical to Raman shifts of calcium carbonate. Vickers hardness test found that 1 Bleached had the average hardness of 3.44 GPa with a standard deviation of 0.12 GPa. The sanded sample also had a similar value of 3.54 GPa with a standard deviation of 0.13 GPa. Samples from …

Feeding The Children: A Paleodietary Reconstruction Of Juveniles From Kuelap, Peru, Marley Denierio

Honors Undergraduate Theses

Before reaching adulthood, every individual experiences a period of dependency, the juvenile period, during which they rely on the older, more experienced members of their society for their security, subsistence and care. This juvenile period is an important stage of life for human physical and physiological development. In bioarchaeology, there has been limited research conducted on juveniles, particularly, the development of their own social identity and influences. The research method of stable carbon (C) and nitrogen (N) isotope analysis is used to reconstruct the paleodiet of juveniles to determine their dietary composition. Specifically, this research is focused on Kuelap, located …

Global Citizenship And Education: The Multidimensional Impact Of A Study Abroad Bilingual Teaching Experience On University Students And Preservice Teachers, Haris N. Anwar

Honors Undergraduate Theses

The intent of this thesis is to study the diverse experiences of 13 University of Central Florida students who participated in the Bilingual Study Abroad Teaching Experience in Spain. The group included nine education students and four in other majors. The experiences of study abroad participants can help to better understand what future participants can look to gain from the program, and what the organizers of the program can potentially look to improve. The research involved was a qualitative study which sought to record the experiences of participants, and then interpret those experiences. The participants were asked to determine the …

A Case-Study Of The African Leopard (Panthera Pardus Pardus) Population On The Nambiti Private Game Reserve, Erica Castaneda

Honors Undergraduate Theses

The Nambiti Private Game Reserve in KwaZulu-Natal, South Africa is a nature reserve that aids in the conservation of some of the world’s most renown species. This includes members of the "Big Five," which is comprised of the African lion (Panthera leo), the African elephant (Loxidonta africana), the Cape buffalo (Syncerus caffer), the black & white rhinoceroses (Diceros bicornis and Ceratotherium simum, respectively), and the African leopard (Panthera pardus pardus). These animals represent the top five African animals desired by trophy hunters and by tourists hoping to view wildlife (Caro …

"Back" To The Future: An Evaluation Of Morphological Integration In Kyphosis, Kristyna L. Ceuninck

Honors Undergraduate Theses

Morphological integration refers to the interdependence of two or more phenotypic structures. The morphological integration concept is based on the fact that parts of complex organisms do not vary randomly and instead display degrees of non-independence that are thought to occur from shared genetic or developmental origins, and/or functional demands. Integrated traits may develop, evolve, and be inherited together. One instance of morphological integration can be found between the vertebral column and the skull. Due to the position of the skull resting atop of the vertebral column, posture may influence skull development and overall craniofacial morphology. Morphological integration within or …

Exploring Diet, Physical Activity, And Self-Reported Health Status Among Individuals In The Medically Underserved Population, Kelley R. Devoe

Honors Undergraduate Theses

The primary purpose of this study is to determine if certain lifestyle and health behaviors (e.g. smoking, physical activity, diet) in the medically underserved population have any influence on particular health statuses. This study also looked to determine if these health behaviors resulted in particular medical aliments being more prevalent or specific to this community. The secondary purpose of this study aims to gain information that may help health care providers practicing in this community to earlier identify risk factors in patients before a medical problem becomes more severe, difficult and expensive to treat. A survey, adapted from the CDC's …

Studies Of Norspermidine Uptake In Drosophila Suggest The Existence Of Multiple Polyamine Transport Pathways, Michael Dieffenbach

Honors Undergraduate Theses

Polyamines are a class of essential nutrients involved in many basic cellular processes such as gene expression, cell proliferation, and apoptosis. Without polyamines, cell growth is delayed or halted. Cancerous cells require an abundance of polyamines through a combination of synthesis and transport from the extracellular environment. An FDA-approved drug, D,L-α-difluoromethylornithine (DFMO), blocks polyamine synthesis but is ineffective at inhibiting cell growth due to polyamine transport. Thus, there is a need to develop drugs that inhibit polyamine transport to use in combination with DFMO. Surprisingly, little is known about the polyamine transport system in humans and other eukaryotes. Understanding the …

Effects Of The Influenza Vaccine On The Oral Cavity, Laura Sawires

Honors Undergraduate Theses

According to existing literature, there is a suggested correlation between certain vaccinations and oral cavity symptoms. Studies have shown that the Diphtheria, Tetanus, Acellular Pertusis, as well as Polio Vaccinations have an association with presented symptoms of bleeding gums, sores, ulcers, white spots in the mouth or on lips, and unpleasant breath odor. Although these symptoms may not occur simultaneously or directly after administration of the immunization, there has been supported evidence of correlation. Given the relevance of an association between vaccinations and orally manifested side effects, an investigation on the presence of such association with the widely administered flu …

A Machine Learning Approach To Assess The Separation Of Seismocardiographic Signals By Respiration, Brian Solar

Honors Undergraduate Theses

The clinical usage of Seismocardiography (SCG) is increasing as it is being shown to be an effective non-invasive measurement for heart monitoring. SCG measures the vibrational activity at the chest surface and applications include non-invasive assessment of myocardial contractility and systolic time intervals. Respiratory activity can also affect the SCG signal by changing the hemodynamic characteristics of cardiac activity and displacing the position of the heart. Other clinically significant information, such as systolic time intervals, can thus manifest themselves differently in an SCG signal during inspiration and expiration. Grouping SCG signals into their respective respiratory cycle can mitigate this issue. …

Investigation Of Aminoglycoside Induced Nanoparticle Self-Assemblies, Michael Leong

Honors Undergraduate Theses

Aminoglycosides are a group of broad-spectrum antibiotics that, under neutral pH conditions, carry a positive charge. The net cationic charge arises from the high number of amino groups in the core structure of aminoglycosides. Previous studies performed have shown that negatively charged citrate ligand-capped gold nanoparticles (AuNPs) can interact with various biomolecules such as aminoglycosides. AuNPs bound to biomolecules have been used in conjugation with various assaying techniques to detect and study compounds in vitro and in vivo. AuNPs also have strong light scattering properties that can be used with a wide variety of imaging and assaying techniques. Our laboratory …

The Identification And Segmentation Of Astrocytoma Prior To Critical Mass, By Means Of A Volumetric/Subregion Regression Analysis Of Normal And Neoplastic Brain Tissue, Lyn Higgins

Electronic Theses and Dissertations

As the underlying cause of Glioblastoma Multiforme (GBM) is presently unclear, this research implements a new approach to identifying and segmenting plausible instances of GBM prior to critical mass. Grade-IV Astrocytoma, or GBM, is an aggressive and malignant cancer arising from star-shaped glial cells, or astrocytes, where the astrocytes, functionally, assist in the support and protection of neurons within the central nervous system and spinal cord. Subsequently, our motivation for researching the ability to recognize GBM is that the underlying cause of the mutation is presently unclear, leading to the operative that GBM is only detectable through a combination of …

Visionary Ophthalmics: Confluence Of Computer Vision And Deep Learning For Ophthalmology, Dustin Morley

Electronic Theses and Dissertations

Ophthalmology is a medical field ripe with opportunities for meaningful application of computer vision algorithms. The field utilizes data from multiple disparate imaging techniques, ranging from conventional cameras to tomography, comprising a diverse set of computer vision challenges. Computer vision has a rich history of techniques that can adequately meet many of these challenges. However, the field has undergone something of a revolution in recent times as deep learning techniques have sprung into the forefront following advances in GPU hardware. This development raises important questions regarding how to best leverage insights from both modern deep learning approaches and more classical …

Olfaction, Memory, And Presence In Warfighters: Do The Scents Of War Matter?, Benson Munyan

Electronic Theses and Dissertations

Background: Exposure therapy (EXP) is a first-line intervention for combat-related PTSD. EXP works by repeatedly exposing the patient to the feared stimuli, situation, or physical sensations in the absence of actual danger until the stimuli no longer evoke maladaptive responses. Over the past decade, multiple technologies have been introduced to augment the EXP process by presenting multi-sensory cues (e.g., sights, smells, sounds) to increase patients' sense of presence. Exploratory research has only broadly examined the effect of odorants on the patient's sense of presence during simulated exposure tasks. This study hypothesized that those with autobiographical memories similar to the virtual …

Homophobia In Registered Nurses, Matthew Berry

Honors Undergraduate Theses

Homophobia plays a significant role in the treatment of individuals who identify as lesbian, gay, bisexual, or transgender (LGBT). The purpose of this study is to explore the presence of these types of negative attitudes as they present themselves in the nursing workforce. 520 registered nurses were contacted via email to partake in a survey assessing homophobic attitudes and perceptions regarding nursing care of LGBT persons. A total of 27 registered nurses responded and the resulting data were analyzed using descriptive statistics. A majority of registered nurses were female (89.3%), greater than 40 years of age (75%), white (75%), heterosexual …

A Transcultural Perspective On Nonpharmacological Treatment Of Postpartum Depression: A Systematic Review, Amanda W. Leyva

Honors Undergraduate Theses

Despite PPD’s global extent, scarce research that addresses culturally competent alternative interventions exists. The purposes of this thesis were to 1) analyze the existing literature on non-pharmacological treatment of PPD in the US and across selected cultures; 2) determine the effectiveness of cross-cultural non-pharmaceutical therapy; and 3) examine and suggest ways health care providers can integrate non-pharmacologic interventions into PPD treatment in the US. The systematic electronic search comprised the databases Cumulative Index to Nursing and Allied Health Literature, Medline, PsycINFO and SAGE Research Methods. Searches were limited to English language, peer reviewed, and research articles between 2007 and 2017. …

Online Support Group For Chinese Women With Ovarian Or Cervical Cancer, Yuan Xing

Honors Undergraduate Theses

Women with gynecological (GYN) cancer experience a wide spectrum of physical, emotional and social effects after diagnosis and treatment of their cancer. The insufficient availability of local support groups, limited transportation for the rural Chinese population and a shortage of oncologists make it difficult to have face-to-face support groups for Chinese GYN cancer patients. However, the wide access of Internet has provided an opportunity for people to have online support groups. The purpose of this study was to observe and describe the types of support given to and by Chinese GYN cancer survivors in a QQ chat group. This was …

The Effects Of Emerging Technology On Healthcare And The Difficulties Of Integration, Skyler J. Pavlish-Carpenter

Honors Undergraduate Theses

Background: Disruptive technology describes technology that is significantly more advanced than previous iterations, such as: 3D printing, genetic manipulation, stem cell research, innovative surgical procedures, and computer-based charting software. These technologies often require extensive overhauls to implement into older systems and must overcome many difficult financial and societal complications before they can be widely used. In a field like healthcare that makes frequent advancements, these difficulties can mean that the technology will not be utilized to its full potential or implemented at all.

Objective: To determine the inhibiting factors that prevent disruptive technology from being implemented in conventional healthcare.

Methods: …

The Effects Of Recorded Maternal Sound On Preterm Neonates: A Systematic Literature Review, Angela Aloisantoni

Honors Undergraduate Theses

A fetus hears and responds to maternal sounds as early as 26 weeks' gestation. When born prematurely, a neonate may face health challenges due to overall organ immaturity and hospitalization in the Neonatal Intensive Care Unit, where developmentally important maternal sounds are replaced with routine hospital noise. A potential intervention that can provide meaningful auditory stimulation these neonates lack is implementation of maternal sound interventions. These interventions replicate the intrauterine auditory environment by playing recorded maternal speech and heart sounds in the incubator. A literature review was completed to identify effects on neurodevelopmental, nutritional, and physiological measurements this intervention may …

Domestic Stalking, Violation Of Protective Orders, And Homicide In Chicago: The Influence Of Social Disorganization And Gender Inequality, Sarah Sacra

Electronic Theses and Dissertations

Domestic violence has been considered a serious issue for many decades. This problem manifests itself physically, sexually, and emotionally and can affect anyone. However, most of the domestic violence literature focuses specifically on physical intimate partner violence. Various theoretical frameworks have been utilized to explain the occurrence of domestic violence including social disorganization theory and gender inequality. These explanations are limited, however, with the former primarily extended to physical assault and the latter focusing on violence against women. This study is important as it extends our knowledge of how these two perspectives can be applied to domestic violence through the …

Evaluating The Integration Of Chlorine Dioxide Into A Coagulation, Sedimentation, And Filtration Process Treating Surface Water, Martin Coleman

Electronic Theses and Dissertations

Methods of optimizing the coagulation, flocculation, sedimentation, and filtration (CSF) process at a conventional surface water treatment plant (WTP) were conducted to investigate opportunities for the reduction of disinfection by-product (DBP) precursor material. The research had two primary components: (1) optimize coagulant dosage and associated operating pH and (2) investigate pretreatment oxidation with chlorine dioxide (ClO2) and potassium permanganate (KMnO4). To accomplish the first component, jar tests were conducted at various pH and aluminum sulfate (alum) dosages to model current and potential treatment conditions during the CSF process at a WTP. Isopleths were developed to examine the removal efficiencies of …

Harmful Algal Bloom Mitigating Using Recycled Concrete Aggregate Coated With Fixed-Quat., Ikenna Ezeodurukwe

Electronic Theses and Dissertations

Human activities generate surplus nutrients which may lead to algal bloom events in water resources along with serious ecological problems and thus substantial economic losses. Particularly, harmful algal blooms (HABs) represent toxic cyanobacterial blooms which produce cyanotoxins. The primary concerns of HABs are the exposures to a wide variety of cyanotoxins via ingestion of contaminated drinking water, inhalation during recreational activities, and consumption of contaminated fish and shellfish. However, conventional physical and chemical methods are not always possible to efficiently handle these HABs events. It is urgent to develop viable and rapid solutions to control HABs in field and mitigate …

Development Of An Mrm Federation System Using Cots Simulations, Jaeho Kim

Electronic Theses and Dissertations

The goal of this research is to build an experimental environment for the Simulation Interoperability Laboratory (SIL) of the University of Central Florida (UCF). The Simulation Interoperability Laboratory (SIL) is researching about multi-resolution modeling(MRM), with a focus on military field uses. This thesis proposes steps to develop an MRM federation system and build two different MRM systems using COTS simulations (SIMBox, VR-Forces, and MASA Sword). This report is written to provide the basis for a time-based MRM federation study in the Simulation Interoperability Laboratory. The report describes many definitions and notions related to Multi-Resolution Modeling(MRM) and discusses examples to make …

Treatment Of Leachate Organic Matter Through Sunlight Driven Processes, Duncan Lozinski

Electronic Theses and Dissertations

The ability to manage leachate during post-closure care (PCC) of a landfill may be increasingly difficult as leachate organic matter (LOM) becomes recalcitrant when a landfill ages, requiring advanced and costly treatment technologies. This research investigated the ability to treat LOM through sunlight driven processes, with a focus on photolysis, to provide insight to landfill owners and operators on the potential of wetlands treatment as a means for reducing long-term risks and costs associated with leachate treatment during PCC. The study was completed in eight batch tests, where leachate was exposed to natural sunlight in central Florida for a period …

Trust-Based Rating Prediction And Malicious Profile Detection In Online Social Recommender Systems, Anahita Davoudi

Electronic Theses and Dissertations

Online social networks and recommender systems have become an effective channel for influencing millions of users by facilitating exchange and spread of information. This dissertation addresses multiple challenges that are faced by online social recommender systems such as: i) finding the extent of information spread; ii) predicting the rating of a product; and iii) detecting malicious profiles. Most of the research in this area do not capture the social interactions and rely on empirical or statistical approaches without considering the temporal aspects. We capture the temporal spread of information using a probabilistic model and use non-linear differential equations to model …

Cost And Environmental Impacts Of Leachate Nitrogen/Phosphorus Management Approaches, Alaa Alanezi

Electronic Theses and Dissertations

Landfill leachate is a challenging wastewater to discharge into municipal wastewater treatment plants (WWTPs), the most common approach for leachate management, due to the presence of contaminants that may affect the performance of the treatment plant. Treatment, disposal, and transportation of leachate are expensive and therefore a concern. Currently, sidestream treatment is becoming increasingly common in WWTPs prior to returning the liquid to the plant influent. For this research, a new treatment scheme is introduced combining centrate and leachate to reduce contaminants, recover phosphorous and nitrogen through struvite precipitation, and reduce energy requirements through anaerobic ammonium oxidation (Anammox). By combining …

Disinfection By-Product Reduction Study Of A Small Central Florida Public Water System, Paul Staubus

Electronic Theses and Dissertations

The disinfection of water for potabilization has proven to be one of the most significant public achievements of the 20th century. Although chemical disinfectants are successfully utilized to inactivate acute pathogenic organisms, they may react with natural organic matter (NOM) to produce potentially-harmful disinfection by-products (DBPs). As a result, the United States Environmental Protection Agency regulates DBPs such as total trihalomethanes (TTHMs) and haloacetic acids (HAAs). The research herein is focused on the formation, removal, and control of TTHMs and HAAs in a small public water system (PWS) in Polk County, Florida (County). Pilot-scale tests were implemented to determine the …

The Formation And Characterization Of Mesoscopic J- And H-Aggregates With Controlled Morphologies By The Co- And Templated Assembly Of Cyanine Dyes, Samuel Rhodes

Electronic Theses and Dissertations

The supramolecular aggregates of π-conjugated molecules have become an area of great interest to the scientific community in recent years for their promise in biosensors and optoelectronic devices. Among various supramolecular aggregates, J- and H-aggregates of πconjugated dye molecules are particularly interesting because of their unique optical and excitonic properties that are not given by individual molecules. H-aggregates are composed of dye molecules in a face-to-face stacking, giving rise to a blue-shifted absorption band compared with the monomer band and a strong emission quenching. In contrast, J-aggregates represent an edge-toedge stacking of dye molecules, showing a red-shifted absorption band with …

Human Factor Effects Of Simulating Battlefield Malodors In Field Training, William Pike

Electronic Theses and Dissertations

In order to explore how to better utilize simulated odors for live training, a study of 180 United States Military Academy at West Point cadets was undertaken to determine whether pre-exposure to a simulated malodor may result in an amelioration of performance issues, as well as improving performance of a complex task. Exposure to malodors has long been shown to increase stress and escape behavior, and reduce performance of complex tasks, in addition to degrading other human factor areas. However, desensitization to a particular odor through a process known as olfactory adaptation, could ameliorate these performance issues. In this study, …

A Review And Selective Analysis Of 3d Display Technologies For Anatomical Education, Matthew Hackett

Electronic Theses and Dissertations

The study of anatomy is complex and difficult for students in both graduate and undergraduate education. Researchers have attempted to improve anatomical education with the inclusion of three-dimensional visualization, with the prevailing finding that 3D is beneficial to students. However, there is limited research on the relative efficacy of different 3D modalities, including monoscopic, stereoscopic, and autostereoscopic displays. This study analyzes educational performance, confidence, cognitive load, visual-spatial ability, and technology acceptance in participants using autostereoscopic 3D visualization (holograms), monoscopic 3D visualization (3DPDFs), and a control visualization (2D printed images). Participants were randomized into three treatment groups: holograms (n=60), 3DPDFs (n=60), …