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Cross-Modal Distraction On Simultaneous Translation: Language Interference In Spanish-English Bilinguals, Violet A. Young Jan 2018

Cross-Modal Distraction On Simultaneous Translation: Language Interference In Spanish-English Bilinguals, Violet A. Young

Honors Undergraduate Theses

Bilingualism has been studied extensively in multiple disciplines, yet we are still trying to figure out how exactly bilinguals think. A bilingual advantage has been observed in various experimental studies, but also has not been observed in many other studies. A bilingual advantage has been shown in tasks using selective attention. These tasks study the effects of language interference, where two types of interference are observed: interlingual (between-languages) and intralingual (within one language). This study examined language interference in Spanish-English bilinguals, using an auditory-visual simultaneous translation experimental setup. 16 college English monolinguals and 17 college Spanish-English bilinguals were tested. The …

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Social Anxiety And Subtypes Of Empathy: The Moderating Influence Of Biological Sex, Samantha K. Berg Jan 2018

Social Anxiety And Subtypes Of Empathy: The Moderating Influence Of Biological Sex, Samantha K. Berg

Honors Undergraduate Theses

Only a few studies have examined relationships between social anxiety and subtypes of empathy. Findings are mixed. The present study examined social anxiety severity on a continuum and how it related to affective and cognitive empathy in 684 nonpsychiatric adults (77% female). Participants completed an online battery of measures that included: a self-report measure of social anxiety severity (Fear of Negative Evaluation), a self-report measure with subscales for affective and cognitive empathy (Interpersonal Reactivity Index), and a behavioral measure of cognitive empathy (Reading the Mind in the Eyes Task; MIE). After statistically covarying for general anxiety severity, biological sex moderated …

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Reproductive Rights And Justice Advocacy In Central Florida: Who Is Represented?, Mary Hager Jan 2018

Reproductive Rights And Justice Advocacy In Central Florida: Who Is Represented?, Mary Hager

Electronic Theses and Dissertations

This thesis examines the racial understanding and social relationships of Planned Parenthood of Southwest and Central Florida staff and volunteers. As well, this research explores how Planned Parenthood supporters organize and promote diverse advocacy work to promote reproductive justice in social media and volunteer education. Planned Parenthood has been at the forefront of reproductive rights campaigns for over a century, and their work has often tied into contemporary feminist and political issues. Of note, feminists of color have called for a shift from advocacy for "reproductive choice" to "reproductive justice" as a way to identify the needs and predicaments of …

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Polyelectrolyte Complexes Based On Poly(Acrylic Acid): Mechanics And Applications, Xiaoyan Lu Jan 2018

Polyelectrolyte Complexes Based On Poly(Acrylic Acid): Mechanics And Applications, Xiaoyan Lu

Electronic Theses and Dissertations

Poly(acrylic acid) (PAA) is a weak polyelectrolyte presenting negative charge at basic condition when the carboxylic group loses a proton. These carboxylate group can interact with polycations and metal ions to form stable polyelectrolyte complexes (PECs), leading to tunable properties and multifunctional nanoscale structures through chemical reactions. This research focuses on nanofiber and nanoparticle fabricated by PAA-based PECs. We demonstrated the effect of ferric ion concentration on the mechanical properties of PAA-based single naonofiber by using dark field microscopy imaging and persistence length analysis. The application of PAA-based nanofiber mats loaded with MnO2 for supercapacitors was also explored. As a …

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College Student Attitudes Towards Free Speech And Expression, David Oglethorpe Jan 2018

College Student Attitudes Towards Free Speech And Expression, David Oglethorpe

Electronic Theses and Dissertations

Throughout its storied history, higher education in the United States has dealt with the challenges of free speech. From Harvard's 1766 'bad butter riot' to hateful speech directed towards students by non-university community members, balancing the need for free speech with maintaining a welcoming and inclusive campus environment stands as an immense test for higher education (Papandrea, 2017). Idealism and ethicality aside, lost in the academic debate over liberty and protections are the views of those who should best help shine a light on such a divisive issue: students. This dissertation creates a quantitative path to understanding those very viewpoints. …

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Coming To A Full Stop: An Investigation Of Menstrual Period Stigmas In College Students, Mary Jane O'Toole Jan 2018

Coming To A Full Stop: An Investigation Of Menstrual Period Stigmas In College Students, Mary Jane O'Toole

Electronic Theses and Dissertations

The focus of this study was to understand perceptions college students have regarding menstruation and if viewing a normalized media message may influence these perceptions. A treatment group of participants was randomly assigned to view an episode of the hit family sitcom Blackish that focused on menstruation and then answer survey questions. A control group of participants only answered the survey questions. A mixed methods analysis revealed three primary conclusions. First, these results contradict existing research in that the college students surveyed generally do not hold negative perceptions that may stigmatize menstruation. Second, the treatment that viewed the normalized media …

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Learning Spaces Are Wac: Investigating How Classroom Space Design Influences Student Disciplinary Identities, Landon Berry Jan 2018

Learning Spaces Are Wac: Investigating How Classroom Space Design Influences Student Disciplinary Identities, Landon Berry

Electronic Theses and Dissertations

This dissertation used classroom observations, movement mapping, instructor interviews, and student focus groups to examine the ways in which both instructors and students navigated the classroom spaces they were assigned in upper-level, discipline-specific courses. By focusing on three diverse disciplines (writing and rhetoric, education, and chemistry), this dissertation makes arguments about how the design of classroom spaces (as well as the tools that are housed therein) support, facilitate, and detract from a student's ability to develop a disciplinary identity, which is defined here as the social and linguistic construction of a practitioner of a discipline that is shaped by the …

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Animals Of The Cloud Forest: Isotopic Variation Of Archaeological Faunal Remains From Kuelap, Peru, Samantha Michell Jan 2018

Animals Of The Cloud Forest: Isotopic Variation Of Archaeological Faunal Remains From Kuelap, Peru, Samantha Michell

Electronic Theses and Dissertations

Stable isotopic analyses of faunal remains are used as a proxy for reconstructing the ancient Chachapoya dietary environment of the northeastern highlands in Peru. Archaeologists have excavated animal remains from refuse piles at the monumental center of Kuelap (AD 900-1535). This archaeological site is located at 3000 meters above sea level (m.a.s.l.), where C3 plants dominate the region. The study presented here is one of the few in the Central Andes that uses faunal remains to develop local isotopic baselines, reconstruct resource exploitation, and provide insight into dietary variation. Bone collagen stable carbon (δ13C) and nitrogen (δ15N) isotopes are used …

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Development Of A Non-Human Primate Model For Staphylococcus Aureus Nasal Carriage, Amanda Lasseter Jan 2018

Development Of A Non-Human Primate Model For Staphylococcus Aureus Nasal Carriage, Amanda Lasseter

Electronic Theses and Dissertations

Staphylococcus aureus nasal carriage (SANC) is largely asymptomatic, but presents a risk of autoinfection and dissemination to new immunocompromised hosts. SA disease states range from mild cutaneous infections to life-threatening bacteremia. Historically utilized rodent models do not naturally carry SA in the nose, are insufficient in longitudinal SANC experimentation, and lack immune factors that are vital in human clearance of SA. The nasal passages of non-human primates are similar anatomically and histologically, and reproductive mucosal studies have shown similar immune responses to pathogens and human-relevant microbial profiles. Seventeen captive pigtailed macaques (Macaca nemestrina) were found to naturally carry SA in …

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Machine Learning Methods For Flow Cytometry Analysis And Visualization, Emily Sassano Jan 2018

Machine Learning Methods For Flow Cytometry Analysis And Visualization, Emily Sassano

Electronic Theses and Dissertations

Flow cytometry is a popular analytical cell-biology instrument that uses specific wavelengths of light to profile heterogeneous populations of cells at the individual level. Current cytometers have the capability of analyzing up to 20 parameters on over a million cells, but despite the complexity of these datasets, a typical workflow relies on subjective labor-intensive manual sequential analysis. The research presented in this dissertation provides two machine learning methods to increase the objectivity, efficiency, and discovery in flow cytometry data analysis. The first, a supervised learning method, utilizes previously analyzed data to evaluate new flow cytometry files containing similar parameters. The …

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The Evolution Of Peristenus (Hymenoptera: Braconidae): Taxonomy, Phylogenetics And Ecological Speciation, Yuanmeng Zhang Jan 2018

The Evolution Of Peristenus (Hymenoptera: Braconidae): Taxonomy, Phylogenetics And Ecological Speciation, Yuanmeng Zhang

Electronic Theses and Dissertations

Parasitoid wasps are ecologically and economically important as biological control agents. However, little is known about the diversity, distribution and biology of most hymenopteran parasitoids due to their small size, morphological conservatism, and complex life styles. The focus of my PhD research was to investigate the evolution and speciation of euphorine braconid wasps, using a combination of multilocus phylogenetics and population genomic techniques combined with traditional taxonomy. The three data chapters of my dissertation are divided into different taxonomic ranks of euphorine braconids, focusing on genera, species, and populations. For chapter 2, I built a multilocus phylogeny of the tribe …

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Countering The Narrative: Exploring The Relationships Among Wellness, Resilience, And Empowerment Within Black Men Who Have Sex With Men Living With Hiv (Bmsm+), Nevin Heard Jan 2018

Countering The Narrative: Exploring The Relationships Among Wellness, Resilience, And Empowerment Within Black Men Who Have Sex With Men Living With Hiv (Bmsm+), Nevin Heard

Electronic Theses and Dissertations

The HIV epidemic continues to disproportionately impact marginalized populations, where one in two Black men who have sex with men (BMSM) will be diagnosed with HIV in their lifetime. The lack of research regarding the wellness of Black men who have sex with men living with HIV (BMSM+) inhibits understanding, which could hinder professions missioned with bettering the wellness of BMSM+. Consequently, the purpose of this study was to investigate if resilience and empowerment predict BMSM+'s wellness. However, a lack of internal consistency among the empowerment measurement required the researcher to remove the scale and adjust the scope of the …

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Revisiting The Postclassic Burials At Lamanai, Belize: A Second Look At The Unique Ventrally Placed, Legs Flexed Burials., Victoria Izzo Jan 2018

Revisiting The Postclassic Burials At Lamanai, Belize: A Second Look At The Unique Ventrally Placed, Legs Flexed Burials., Victoria Izzo

Electronic Theses and Dissertations

Analysis of unique mortuary patterns is often used to evaluate the social lives of the deceased and also those of the living who placed them there. The Ventrally Placed, Legs Flexed (VPLF) burials at the site of Lamanai in Belize, dating to the Postclassic period (1000 - 1544), have been recorded as a Maya mortuary pattern since the late 1970's. While many researchers have analyzed these skeletal remains, comprehensive and cumulative individual analysis of the VPLF individuals from Lamanai has not been conducted. In this study, I will argue that the VPLF individuals in this study were local to Lamanai, …

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Testing The Capability Of Close-Range Photogrammetry To Document Outdoor Forensic Scenes With Skeletal Remains Using Mock Scenarios, Kevin Gidusko Jan 2018

Testing The Capability Of Close-Range Photogrammetry To Document Outdoor Forensic Scenes With Skeletal Remains Using Mock Scenarios, Kevin Gidusko

Electronic Theses and Dissertations

More rigorous methodological protocols are needed to document outdoor forensic scenes containing skeletal remains. However, law enforcement protocols rarely provide specific guidelines for processing these scenes. Regardless, the need to preserve contextual information at crime scenes is of paramount importance and it is worth exploring new technological applications that will allow for better documentation. Close-range photogrammetry (CRP) is one option for outdoor scene documentation, more prominently utilized in archaeological contexts, that may provide forensic archaeologists with a tool to better document these scenarios via 3D modeling. To test the efficacy of CRP as documentation tool three mock scenarios representing common …

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Embryonic Stem Cell Derived Exosomes Enhance Cardiac Stem Cell Differentiation Into Heart Cells, Jamillah Hammond Jan 2018

Embryonic Stem Cell Derived Exosomes Enhance Cardiac Stem Cell Differentiation Into Heart Cells, Jamillah Hammond

Electronic Theses and Dissertations

Transplantation of embryonic stem (ES) cells into the ischemic and infarcted heart has proven to repopulate cardiac cell populations, attenuate structural cardiac remodeling, and rescue cardiac function. Unfortunately, the pluripotency of ES cells increases risk of teratoma formation in vivo. Exosomes, smaller in comparison to ES cells, are cell free carriers of miRNA, proteins, and lipids, and do not suggest risk of teratoma formation. Exosomes have been proposed to mediate and attenuate regeneration following myocardial infarction (MI), however, the role of exosomes derived from ES cells (ES-Exo) in activating resident cardiac stem cells (CSCs) to undergo cardiac differentiation is not …

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Childhood Experiences And Domestic Violence: The Role That Interpartner Violence Plays In Relationship Functioning And Parenting Behaviors In Adulthood., J'Nelle Stephenson Jan 2018

Childhood Experiences And Domestic Violence: The Role That Interpartner Violence Plays In Relationship Functioning And Parenting Behaviors In Adulthood., J'Nelle Stephenson

Electronic Theses and Dissertations

It is estimated that approximately 25% of women and 7.6% of men report experiencing violence from their romantic partner during their lifetime. Additionally, in households where interpartner violence occurs, there are between 3.3 and 10 million children in the United States alone. It is important to understand the cycle of domestic violence that can occur, as it can inform us about expected outcomes across time. This study examined mothers' childhood exposure to their own parents' domestic violence. It was hypothesized that childhood exposure to domestic violence would be related to unhealthy intimate relationships and to the development of maladaptive parenting …

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Gender And Conflict In Long-Term Romantic Relationships, Emily Hamlin Jan 2018

Gender And Conflict In Long-Term Romantic Relationships, Emily Hamlin

Electronic Theses and Dissertations

Conflict is inevitable, but not inherently negative. All relationships face conflict with some frequency and long-term romantic partnerships are no exception. This exploratory qualitative study investigated conflict types, approaches, and affective components using digital conflict journals. Participants logged their relational conflict for one month in order to gain insight into the communication practices and conflict perceptions of couples. A conflict cycle and sensemaking framework was applied to identify patterns and best practices.

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Evolution And Distribution Of Phenotypic Diversity In The Venom Of Mojave Rattlesnakes (Crotalus Scutulatus), Jason Strickland Jan 2018

Evolution And Distribution Of Phenotypic Diversity In The Venom Of Mojave Rattlesnakes (Crotalus Scutulatus), Jason Strickland

Electronic Theses and Dissertations

Intraspecific phenotype diversity allows for local adaption and the ability for species to respond to changing environmental conditions, enhancing survivability. Phenotypic variation could be stochastic, genetically based, and/or the result of different environmental conditions. Mojave Rattlesnakes, Crotalus scutulatus, are known to have high intraspecific venom variation, but the geographic extent of the variation and factors influencing venom evolution are poorly understood. Three primary venom types have been described in this species based on the presence (Type A) or absence (Type B) of a neurotoxic phospholipase A2 called Mojave toxin and an inverse relationship with the presence of snake venom metalloproteinases …

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A Lesbian, Gay, Bisexual And Transgender + Student Support Group Within A Central Florida State College: A Qualitative Study, Remy Ansiello Jan 2018

A Lesbian, Gay, Bisexual And Transgender + Student Support Group Within A Central Florida State College: A Qualitative Study, Remy Ansiello

Electronic Theses and Dissertations

For decades, lesbian, gay, bisexual, and transgender (LGBT) + students attending institutions of higher education have been marginalized and have experienced hostility and outright discrimination, causing the need for student support groups for this population on college campuses. Recent laws passed at a national level have brought a greater level of equality to this minority group; however, feelings of marginalization, homophobia, heterosexism, and heteronormative culture persist. Therefore, the purpose of this study was to ask how students participating in an LGBT + support group within a Central Florida public state college perceive their experiences in college. The researcher also asked …

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A Landscape Of Death: A Comparison Of Non-Adult To Adult Burials At The Late Bronze Age Site Of Tell El-Far'ah (South), Rebecca Reeves Jan 2018

A Landscape Of Death: A Comparison Of Non-Adult To Adult Burials At The Late Bronze Age Site Of Tell El-Far'ah (South), Rebecca Reeves

Electronic Theses and Dissertations

This study aims to determine whether there are any differences in the burial practices for non-adults and adults at the Late Bronze Age site of Tell el-Far'ah (South) in modern day Israel. The archaeology of childhood together with various methods of analyses, including geospatial and statistical techniques, were utilized to address the main research question focused on the spatial differences and relationships between non-adult and adult burials. There are missing children in the archeological record. Tell el-Far'ah (South) is an example of this phenomenon. Reasons vary from taphonomy to potential infanticide. Based on the currently available data, it seems that …

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Development Of A Tabletop Coherent Soft X-Ray Source, Hanfu Kong Jan 2018

Development Of A Tabletop Coherent Soft X-Ray Source, Hanfu Kong

Electronic Theses and Dissertations

The goal of this thesis is to design a tabletop coherent soft X-ray source for attosecond high resolution imaging. We collect signals from gas cells with different length and lens with different focal length. A spectrometer with a grating and a CCD camera is applied to observe and measure the spectrum of the X-ray attosecond pulses. This thesis first introduces the theory background of ultrafast lasers, then mainly explains high harmonic generation, which is the key method for attosecond pulses generation, subsequently presents the experiment system and analyzes the results from the experiment, also compares different combinations of parameters of …

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In Situ Treatment Systems For Remediation Of Polychlorinated Biphenyl-Contaminated Building Materials, Adibah Almutairi Jan 2018

In Situ Treatment Systems For Remediation Of Polychlorinated Biphenyl-Contaminated Building Materials, Adibah Almutairi

Electronic Theses and Dissertations

Polychlorinated Biphenyls (PCBs) are a family of synthetic organohalides comprising 209 congeners which were used historically as additives in paint and caulking materials over a span of many years. Even though the production of PCBs in the USA has been banned since the late 1970s, their former prevalence and widespread use means many structures are still coated with PCB-laden paints. In addition, the presence of PCBs in elastic sealants has resulted in transport of PCBs into concrete structures and has caused soil contamination around buildings. PCB-contaminated building materials have become a significant concern for the environment and building occupants due …

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Light Scattering Property Of Gold Nanoparticles With Applications To Biomolecule Detection And Analysis, Tianyu Zheng Jan 2018

Light Scattering Property Of Gold Nanoparticles With Applications To Biomolecule Detection And Analysis, Tianyu Zheng

Electronic Theses and Dissertations

Gold nanoparticles (AuNPs) have unique optical and chemical properties. Dynamic light scattering (DLS) is an analytical tool used routinely for nanoparticle size measurement. The combined use of AuNPs and DLS has led to a novel analytical assay technology called D2Dx (from diameter to diagnostics). Herein, my dissertation highlights the extended use of D2Dx for biomolecule detection and analysis. Under this general theme, Chapter 1 provides some background information of AuNPs, DLS, the principle of D2Dx technique and its potential applications. Chapter 2 summarizes a study on the effect of AuNP concentrations and laser power on the hydrodynamic size measurement of …

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Influence Of Chitosan-Alginate Scaffold Stiffness On Bone Marrow Stromal Cell Differentiation, Isabel Arias Ponce Jan 2018

Influence Of Chitosan-Alginate Scaffold Stiffness On Bone Marrow Stromal Cell Differentiation, Isabel Arias Ponce

Electronic Theses and Dissertations

Tissue grafts are the gold standard for replacing large volume tissue defects. Yet, they present several risks, including infection, low functional outcomes, and reduced graft integrity. Tissue engineering (TE) combines cells and biomaterial scaffolds to foster tissue growth and remodeling. Bone marrow stromal cells (BMSCs) have been shown to respond to the stiffness of their microenvironment, resulting in differentiation into different lineages. 3D porous chitosan-alginate (CA) scaffolds have been previously demonstrated for bone TE with osteoblasts and BMSCs; however, only a single scaffold composition (4 wt%) was studied. Three CA scaffold compositions (2, 4, 6 wt% CA) were produced. Scanning …

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Cell Printing: An Effective Advancement For The Creation Of Um Size Patterns For Integration Into Microfluidic Biomems Devices, Megan Aubin Jan 2018

Cell Printing: An Effective Advancement For The Creation Of Um Size Patterns For Integration Into Microfluidic Biomems Devices, Megan Aubin

Electronic Theses and Dissertations

The Body-on-a-Chip (BoaC) is a microfluidic BioMEMs project that aims to replicate major organs of the human body on a chip, providing an in vitro drug testing platform without the need to resort to animal model testing. Using a human model also provides significantly more accurate drug response data, and may even open the door to personalized drug treatments. Microelectrode arrays integrated with human neuronal or human cardiac cells that are positioned on the electrodes are essential components for BoaC systems. Fabricating these substrates relies heavily on chemically patterned surfaces to control the orientation and growth of the cells. Currently, …

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Help Me Be Healthy: Perceptions Of Social Support In An Online Weight Loss Program, Brittany Davies Jan 2018

Help Me Be Healthy: Perceptions Of Social Support In An Online Weight Loss Program, Brittany Davies

Electronic Theses and Dissertations

As technology changes, so do the ways in which we receive information, provide information and interact with one another. The exchange of social support is increasingly mediated by technology in the realm of health, nutrition, and fitness (Dahl, et al 2015; Wright et al 2011). Commercial weight loss and healthy lifestyle initiatives such as the Beachbody programs incorporate social media and web applications to reach a broader consumer base with individualized programming options. The present study, guided by optimal matching theory and the helper theory principle, employed online participant-observation and in-depth, semi-structured interviews with Beachbody coaches and participants to investigate …

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Fluid Dynamics Modeling And Sound Analysis Of A Bileaflet Mechanical Heart Valve, Fardin Khalili Jan 2018

Fluid Dynamics Modeling And Sound Analysis Of A Bileaflet Mechanical Heart Valve, Fardin Khalili

Electronic Theses and Dissertations

Cardiovascular disease (CVD) is one of the main causes of death in the world. Some CVD involve severe heart valve disease that require valve replacement. There are more than 300,000 heart valves implanted worldwide, and about 85,000 heart valve replacements in the US. Approximately half of these valves are mechanical. Artificial valves may dysfunction leading to adverse hemodynamic conditions. Understanding the normal and abnormal valve function is important as it help improve valve designs. Modeling of heart valve hemodynamics using computational fluid dynamics (CFD) provides a comprehensive analysis of flow, which can potentially help explain clinical observations and support therapeutic …

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Biomechanical Models Of Human Upper And Tracheal Airway Functionality, Don Nadun Kuruppumullage Jan 2018

Biomechanical Models Of Human Upper And Tracheal Airway Functionality, Don Nadun Kuruppumullage

Electronic Theses and Dissertations

The respiratory tract, in other words, the airway, is the primary airflow path for several physiological activities such as coughing, breathing, and sneezing. Diseases can impact airway functionality through various means including cancer of the head and neck, Neurological disorders such as Parkinson's disease, and sleep disorders and all of which are considered in this study. In this dissertation, numerical modeling techniques were used to simulate three distinct airway diseases: a weak cough leading to aspiration, upper airway patency in obstructive sleep apnea, and tongue cancer in swallow disorders. The work described in this dissertation, therefore, divided into three biomechanical …

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Artificial Neuron Using Mos2/Graphene Threshold Switching Memristor, Hirokjyoti Kalita Jan 2018

Artificial Neuron Using Mos2/Graphene Threshold Switching Memristor, Hirokjyoti Kalita

Electronic Theses and Dissertations

With the ever-increasing demand for low power electronics, neuromorphic computing has garnered huge interest in recent times. Implementing neuromorphic computing in hardware will be a severe boost for applications involving complex processes such as pattern recognition. Artificial neurons form a critical part in neuromorphic circuits, and have been realized with complex complementary metal–oxide–semiconductor (CMOS) circuitry in the past. Recently, insulator-to-metal-transition (IMT) materials have been used to realize artificial neurons. Although memristors have been implemented to realize synaptic behavior, not much work has been reported regarding the neuronal response achieved with these devices. In this work, we study the IMT in …

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Energy-Optimal Guidance Of An Auv Under Flow Uncertainty And Fluid-Particle Interaction, Demuni Singith De Zoysa Abeysiriwardena Jan 2018

Energy-Optimal Guidance Of An Auv Under Flow Uncertainty And Fluid-Particle Interaction, Demuni Singith De Zoysa Abeysiriwardena

Electronic Theses and Dissertations

The work presented gives an energy-optimal solution to the guidance problem of an AUV. The presented guidance methods are for lower level control of AUV paths, facilitating existing global planning methods to be carried out comparatively more efficiently. The underlying concept is to use the energy of fluid flow fields the AUVs are navigating to extend the duration of missions. This allows gathering of comparatively more data with higher spatio-temporal resolution. The problem is formulated for a generalized two dimensional uniform flow field given a fixed final time and free end states. This allows the AUVs to navigate to certain …

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