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Full-Text Articles in Entire DC Network
Hispanic Immigrant Parental Messages Of Resiliency And Emotional Regulation To Their Children: An Examination Of Important Variables And An Intervention, Rodrigo Velezmoro
Hispanic Immigrant Parental Messages Of Resiliency And Emotional Regulation To Their Children: An Examination Of Important Variables And An Intervention, Rodrigo Velezmoro
Electronic Theses and Dissertations
This two-part study examined the adjustment of Hispanic immigrants. Part one examined the communication that occurs between Hispanic immigrant parents and their adolescents/young adults about life in the United States (U.S.). It also examined how attitudes toward the U.S. and various protective factors influence psychological adjustment. Hispanic immigrants (n = 123) with an average of 11 years living in the United States and their adolescents/young adults between the ages of 14-22 served as participants. For both parents and their adolescents/young adults, favorable attitudes toward the U.S. were associated with improved psychological adjustment. Contrary to prediction, attitudes toward the U.S. did …
Functional Data Analysis And Its Application To Cancer Data, Evgeny Martinenko
Functional Data Analysis And Its Application To Cancer Data, Evgeny Martinenko
Electronic Theses and Dissertations
The objective of the current work is to develop novel procedures for the analysis of functional data and apply them for investigation of gender disparity in survival of lung cancer patients. In particular, we use the time-dependent Cox proportional hazards model where the clinical information is incorporated via time-independent covariates, and the current age is modeled using its expansion over wavelet basis functions. We developed computer algorithms and applied them to the data set which is derived from Florida Cancer Data depository data set (all personal information which allows to identify patients was eliminated). We also studied the problem of …
An Investigation Of The Use Of Disciplinary Texts And Achievement On End-Of-Course Examinations In High School U.S. History Courses, Jocelyn Baldridge
An Investigation Of The Use Of Disciplinary Texts And Achievement On End-Of-Course Examinations In High School U.S. History Courses, Jocelyn Baldridge
Electronic Theses and Dissertations
This study was conducted to examine whether a disparity exists between teacher expectations of honors and non-honors U. S. History students and if students who read more for U. S. History perform better on the U. S. History End-of-Course (EOC) examination. To generate answers to the research questions, both teachers and students in U. S. History courses were surveyed as to how much time was spent reading for U. S. History content both during class and for homework. The student surveys were matched to the U. S. History EOC Developmental Scale Scores to determine if students who responded as reading …
Dynamical Spin Injection In Graphene, Simranjeet Singh
Dynamical Spin Injection In Graphene, Simranjeet Singh
Electronic Theses and Dissertations
Within the exciting current trend to explore novel low-dimensional systems, the possibility to inject pure spin currents in graphene and other two-dimensional crystals has attracted considerable attention in the past few years. The theoretical prediction of large spin relaxation times and experimentally observed mesoscopic-scale spin diffusion lengths places graphene as a promising base system for future spintronics devices. This is due to the unique characteristics intrinsic to the two-dimensional lattice of carbon atoms forming graphene, such as the lack of nuclear spins and weak spin-orbit coupling of the charge carriers. Interestingly for some spintronic applications, the latter can be chemically …
Inversion Of The Broken Ray Transform, Roman Krylov
Inversion Of The Broken Ray Transform, Roman Krylov
Electronic Theses and Dissertations
The broken ray transform (BRT) is an integral of a function along a union of two rays with a common vertex. Consider an X-ray beam scanning an object of interest. The ray undergoes attenuation and scatters in all directions inside the object. This phenomena may happen repeatedly until the photons either exit the object or are completely absorbed. In our work we assume the single scattering approximation when the intensity of the rays scattered more than once is negligibly small. Among all paths that the scattered rays travel inside the object we pick the one that is a union of …
Antimicrobial Peptide Resistance And Immunomodulation By Hiv-1 Gp41, Matthew Wood
Antimicrobial Peptide Resistance And Immunomodulation By Hiv-1 Gp41, Matthew Wood
Electronic Theses and Dissertations
Fusion inhibitors are a class of antiretroviral drugs used to prevent entry of HIV into host cells. Many of the fusion inhibitors being developed, including the drug enfuvirtide (ENF), are peptides designed to mimic, and thereby competitively inhibit, the viral fusion protein gp41. An exception to this is a class of cyclic, cationic, antimicrobial peptides known as θ-defensins, which are produced by many non-human primates and exhibit broad-spectrum antiviral and antibacterial activity. Currently, the θ-defensin analog RC-101 is being developed as a microbicide to prevent sexual transmission of HIV-1. Understanding potential RC-101 resistance, and how resistance to other fusion inhibitors …
The Contribution Of College Students' Attachment Styles And Social Media Practices On Their Relationship Development, Renee Sherrell
The Contribution Of College Students' Attachment Styles And Social Media Practices On Their Relationship Development, Renee Sherrell
Electronic Theses and Dissertations
The purpose of this research study was to investigate the directional relationship between college students' attachment styles and social media practices with their relationship development. This investigation tested the theoretical model that undergraduate students' (N = 717) attachment styles (as measured by the Experiences in Close Relationships-Short form [ECR-S; Wei et al., 2007]) and social media practices (as measured by the Facebook Intensity Scale [FBI; Ellison et al., 2007] and Motives for Going Facebook Official Scale [MGFBO; Fox & Warber, 2013]) contributed to their quality of relationship development (as measured by the Parks Relational Development Scale [PRDS; Parks & Roberts, …
Performing On The Screen: An Exploration Of Gender Representation In Technology Video Advertisements, Subriena Persaud
Performing On The Screen: An Exploration Of Gender Representation In Technology Video Advertisements, Subriena Persaud
Electronic Theses and Dissertations
This study investigates the representation of gender in technology-related video advertisements. This thesis quantitatively and qualitatively examined 54 of the most recent commercials by the top nine Fortune 500 technology companies. A total of 407 characters were coded and quantitatively analyzed while the videos themselves were qualitatively assessed with particular attention given to the videos' themes and the interactions between the characters and the technology products and services. Results of the analyses showed that there were more male, Caucasian characters than any other character type based on gender and race/ethnicity. Females were mainly characterized according to traditional stereotypes, such as …
Practical Issues In Gpram Development, Yin Li
Practical Issues In Gpram Development, Yin Li
Electronic Theses and Dissertations
In this thesis, two parts of practical issues in the GPRAM system design are included. The first part is the coding part. The sum-product decoding algorithm of LDPC codes has been refined to fit for the GPRAM hardware implementation. As we all know, communication channel has noise. The noise in telecom system is different from that in GPRAM systems. So the noise should be handled well in the GPRAM design. A noise look-up table was created for FPGA and those noises in the table are quantized. The second part of the thesis is to convert perfect images in video stream …
Learning To Grasp Unknown Objects Using Weighted Random Forest Algorithm From Selective Image And Point Cloud Feature, Md Shahriar Iqbal
Learning To Grasp Unknown Objects Using Weighted Random Forest Algorithm From Selective Image And Point Cloud Feature, Md Shahriar Iqbal
Electronic Theses and Dissertations
This method demonstrates an approach to determine the best grasping location on an unknown object using Weighted Random Forest Algorithm. It used RGB-D value of an object as input to find a suitable rectangular grasping region as the output. To accomplish this task, it uses a subspace of most important features from a very high dimensional extensive feature space that contains both image and point cloud features. Usage of most important features in the grasping algorithm has enabled the system to be computationally very fast while preserving maximum information gain. In this approach, the Random Forest operates using optimum parameters …
The Effects Of Bam As An Adsorptive Media On Phosphorus Removal In Stormwater, Sultan Salamah
The Effects Of Bam As An Adsorptive Media On Phosphorus Removal In Stormwater, Sultan Salamah
Electronic Theses and Dissertations
To maintain the quality of receiving water bodies, it is desirable to remove total phosphorus (TP) in stormwater runoff. Many media filtration technologies have been developed to achieve TP and soluble reactive phosphorus (SRP) removal. Efficient media adsorption is essential to insure control of stormwater phosphorus inputs to the receiving water body. This project develops and analyzes a functionalized Biosorption Media (BAM) to remove phosphorus species from stormwater runoff. One goal of this project is to find the BAM values for coefficients such as maximum adsorption capacity (QM: 4.35E-05) for the media through SRP isotherm equilibrium experiments using the Langmuir …
Remote Sensing With Computational Intelligence Modelling For Monitoring The Ecosystem State And Hydraulic Pattern In A Constructed Wetland, Golam Mohiuddin
Remote Sensing With Computational Intelligence Modelling For Monitoring The Ecosystem State And Hydraulic Pattern In A Constructed Wetland, Golam Mohiuddin
Electronic Theses and Dissertations
Monitoring the heterogeneous aquatic environment such as the Stormwater Treatment Areas (STAs) located at the northeast of the Everglades is extremely important in understanding the land processes of the constructed wetland in its capacity to remove nutrient. Direct monitoring and measurements of ecosystem evolution and changing velocities at every single part of the STA are not always feasible. Integrated remote sensing, monitoring, and modeling technique can be a state-of-the-art tool to estimate the spatial and temporal distributions of flow velocity regimes and ecological functioning in such dynamic aquatic environments. In this presentation, comparison between four computational intelligence models including Extreme …
Exploring Stereotype Threat In The Workplace With Sexual Minorities, Elizabeth Sanz
Exploring Stereotype Threat In The Workplace With Sexual Minorities, Elizabeth Sanz
Electronic Theses and Dissertations
Sexual minorities are the target of numerous negative stereotypes in the United States, and are sometimes perceived as deviant and devalued as compared to heterosexuals. Stereotype threat, the anxiety of confirming a negative stereotype about oneself or one's group, has been linked to perceived stress; and stress has been linked to low job satisfaction. Sexual minorities provide a unique test of stereotype threat theory because they may choose to conceal their minority status at work. Thus, this study also examines whether the visibility of the stigma is a necessary precursor to the experience of stereotype threat. Given the uniqueness of …
Development Of Treatment Train Techniques For The Evaluation Of Low Impact Development In Urban Regions, Mike Hardin
Development Of Treatment Train Techniques For The Evaluation Of Low Impact Development In Urban Regions, Mike Hardin
Electronic Theses and Dissertations
Stormwater runoff from urban areas is a major source of pollution to surface water bodies. The discharge of nutrients such as nitrogen and phosphorus is particularly damaging as it results in harmful algal blooms which can limit the beneficial use of a water body. Stormwater best management practices (BMPs) have been developed over the years to help address this issue. While BMPs have been investigated for years, their use has been somewhat limited due to the fact that much of the data collected is for specific applications, in specific regions, and it is unknown how these systems will perform in …
Evaluation Of Iron And Manganese Control For A Volcanic Surface Water Supply Treated With Conventional Coagulation, Sedimentation And Filtration Processes, Christine Hall
Electronic Theses and Dissertations
A research project assessing the effectiveness of potassium permanganate (KMnO4) for the treatment of iron (Fe) and manganese (Mn) has been conducted by the University of Central Florida (UCF) on behalf of the United States Navy with regards to the water supply on the island of Guam, located in the Marianas Islands. The study consisted of three basic investigative components: one that examined the use of potassium permanganate for iron and manganese control for Fena Lake, a second that examined the existing unit operations that comprised the Navy's water treatment plant (NWTP), and a third that examined iron and manganese …
Dishwashing Water Recycling System And Related Water Quality Standards For Military Use, Jared Church
Dishwashing Water Recycling System And Related Water Quality Standards For Military Use, Jared Church
Electronic Theses and Dissertations
As the demand for reliable and safe water supplies increases, both water quality and available quantity are being challenged by population growth and climate change. Greywater reuse is becoming a common practice worldwide; however, in remote locations of limited water supply, such as those encountered in military installations, it is desirable to expand its classification to include dishwashing water to maximize the conservation of fresh water. Given that no standards for dishwashing greywater reuse by the military are currently available, the current study determined a specific set of water quality standards for dishwater recycling systems for U.S military field operations. …
Green Technologies And Sensor Networks For Bmp Evaluation In Stormwater Retention Ponds And Wetlands., Anthony Crawford
Green Technologies And Sensor Networks For Bmp Evaluation In Stormwater Retention Ponds And Wetlands., Anthony Crawford
Electronic Theses and Dissertations
The aim of this thesis is to examine and develop new techniques in stormwater Best Management Practices (BMP) for nutrient and erosion reduction and monitoring by incorporation of low impact green technologies and sensor networks. Previous research has found excessive nutrient loading of nitrogen and phosphorus species from urban stormwater runoff can lead to ecological degradation and eutrophication of receiving lakes and rivers (Fareed and Abid, 2005). In response, the Florida Department of Environmental Protection (FDEP) has set forth reduction goals as established in Total Maximum Daily Load (TMDL) reports to reduce nutrient loading and restore, or maintain, Florida water …
Exploring Sparsity, Self-Similarity, And Low Rank Approximation In Action Recognition, Motion Retrieval, And Action Spotting, Chuan Sun
Electronic Theses and Dissertations
This thesis consists of 4 major parts. In the first part (Chapters 1-2), we introduce the overview, motivation, and contribution of our works, and extensively survey the current literature for 6 related topics. In the second part (Chapters 3-7), we explore the concept of "Self-Similarity" in two challenging scenarios, namely, the Action Recognition and the Motion Retrieval. We build three-dimensional volume representations for both scenarios, and devise effective techniques that can produce compact representations encoding the internal dynamics of data. In the third part (Chapter 8), we explore the challenging action spotting problem, and propose a feature-independent unsupervised framework that …
Institutional Repository, Ucf Libraries
Institutional Repository, Ucf Libraries
Technology Fee Funded Projects
The UCF Libraries seeks $240,077 in funding to purchase a 3 year license for Digital Commons, a digital repository platform for UCF-produced digital scholarship.
A Longer Spoon: A Novel, Elizabeth Macdonald
A Longer Spoon: A Novel, Elizabeth Macdonald
HIM 1990-2015
The intent of this thesis is to create a novel-length narrative based around a premise conceived in a workshop setting. The novel, while containing elements of fantasy, will be character-driven and feature psychological character development as its primary goal. Lawrence Caligny, a young cook newly instated at a castle, is coerced by his mother, an infamous witch named Mallory, to concoct a sleeping potion for the country’s crown prince, beckoning comparison to the "Sleeping Beauty" fairy tale. As Lawrence prepares for his opportunity, he unwittingly befriends the prince and his sister and stumbles across an assassination plot. Being thoroughly inept …
Non-Oxide Porous Ceramics From Polymer Precursor, Xueping Yang
Non-Oxide Porous Ceramics From Polymer Precursor, Xueping Yang
Electronic Theses and Dissertations
Non-oxide porous ceramics exhibit many unique and superior properties, such as better high-temperature stability, improved chemical inertness/corrosive resistance, as well as wide band-gap semiconducting behavior, which lead to numerous potential applications in catalysis, high temperature electronic and photonic devices, and micro-electromechanical systems. Currently, most mesoporous non-oxide ceramics (e.g. SiC) are formed by two-step templating methods, which are hard to adjust the pore sizes, and require a harmful etching step or a high temperature treatment to remove the templates. In this dissertation, we report a novel technique for synthesizing hierarchically mesoporous non-oxide SiC ceramic from a block copolymer precursor. The copolymer …
Building Educator Capacity In Support Of Student Achievement On Florida's United States History End-Of-Course Assessment, Stacy Skinner
Building Educator Capacity In Support Of Student Achievement On Florida's United States History End-Of-Course Assessment, Stacy Skinner
Electronic Theses and Dissertations
Florida's United States History End-of-Course (EOC) Assessment performance outcomes are scheduled to impact student course grades, educator evaluation scores, and school grades. A professional learning plan to improve teaching and learning in support of student achievement on the Assessment does not exist. Neither Florida Statute nor the Florida Department of Education (FDOE) facilitate or fund professional learning in support of these influences. This dissertation in practice proposes the use of the U.S. History EOC Assessment Professional Learning Series to build educator capacity in support of student achievement on the Assessment. Implementation of professional learning could address the disparity between the …
Pinning Motherhood: The Construction Of Mothering Identities On Pinterest, Kate Griffin
Pinning Motherhood: The Construction Of Mothering Identities On Pinterest, Kate Griffin
Electronic Theses and Dissertations
This research examines the new social media site, Pinterest, to uncover the processes through which mothers construct self- and public-identities. Despite being valued at over $3.8 billion dollars (Perez 2013), having an impressive user retention rate (Moore 2014), and having a highly gendered user base (Tekobbe 2013), Pinterest has been the site of limited sociological inquiry. Seventeen semi-structured qualitative interviews on mothering and Pinterest use were conducted with central Florida mothers who have a Pinterest account and at least one child between 6 months and 10 years old. Through analysis based in a grounded theory approach, three central themes emerged …
Teachers' Utilization Of Field Trips: A Comparative Study, Joshua Kenna
Teachers' Utilization Of Field Trips: A Comparative Study, Joshua Kenna
Electronic Theses and Dissertations
Field trips are visits to an out-of-school setting designed for educational and academic purposes whereby as a result students gain firsthand knowledge and experiences. Historically, it was the potential for student learning that motivated teachers to utilize field trips. However, there is reasonable suspicion among scholars today that teachers are utilizing field trips less since the start of the new millennia; the common reasons being cited among others include a slumping economy, an increase in accountability due to high-stakes testing, and rising fuel costs. Unfortunately, there is no empirical evidence that can confirm or deny this suspicion. Therefore, the purpose …
Novel Developments On The Extraction And Analysis Of Polycyclic Aromatic Hydrocarbons In Environmental Samples, Walter Wilson
Novel Developments On The Extraction And Analysis Of Polycyclic Aromatic Hydrocarbons In Environmental Samples, Walter Wilson
Electronic Theses and Dissertations
This dissertation focuses on the development of analytical methodology for the analysis of polycyclic aromatic hydrocarbons (PAHs) in water samples. Chemical analysis of PAHs is of great environmental and toxicological importance. Many of them are highly suspect as etiological agents in human cancer. Among the hundreds of PAHs present in the environment, the U.S. Environmental Protection Agency (EPA) lists sixteen as "Consent Decree" priority pollutants. Their routine monitoring in environmental samples is recommended to prevent human contamination risks. A primary route of human exposure to PAHs is the ingestion of contaminated water. The rather low PAH concentrations in water samples …
The Modern Gender Gap In Partisanship And Ideology: A Cross-National Analysis, Tiffany Quick
The Modern Gender Gap In Partisanship And Ideology: A Cross-National Analysis, Tiffany Quick
Electronic Theses and Dissertations
This thesis updates and expands upon the developmental theory of the gender gap in party and ideological identification originally posited by Norris and Inglehart (2000) to explain why women in advanced industrial nations are more likely to hold more leftist ideological identification than men. A comparative cross-national analysis using data from the World Values Survey (2004-2008) extends Norris and Inglehart's study, with an examination of the gender gap in advanced industrial, post-communist and developing nations. To further explore the nature of the gender gap in the United States, data from the American National Election Study (Cumulative File and 2012 cross-section) …
Movements, Fishery Interactions, And Unusual Mortalities Of Bottlenose Dolphins, Steven Shippee
Movements, Fishery Interactions, And Unusual Mortalities Of Bottlenose Dolphins, Steven Shippee
Electronic Theses and Dissertations
Bottlenose dolphins inhabiting coastlines and estuaries in Florida have been impacted in the past decade by development, algal blooms, catastrophic pollution, and fishery interactions (FI). Dolphins react to disturbance and environmental stressors by modifying their movements and habitat use, which may put them in jeopardy of conflict with humans. FI plays an increasing role in contributing to dolphin mortalities. I investigated dolphin movements, habitat use, residency patterns, and frequency of FI with sport fishing. Tagging studies with short-term data tags and bolt on radio-transmitters were done in several locations in Florida and the east coast providing fine-scale measurements of swimming, …
The Role Of Invitational Theory On Minority Student Enrollment In Advanced Placement Courses, Jason Mcdonald
The Role Of Invitational Theory On Minority Student Enrollment In Advanced Placement Courses, Jason Mcdonald
Electronic Theses and Dissertations
The number of students enrolling in Advanced Placement (AP) classes has been increasing in Florida and across the nation over the last decade. However, this trend is not happening for traditionally underserved groups of students such as African Americans, Hispanics, and students from low socioeconomic backgrounds. These minority groups are underrepresented in AP classes, while Asian and White students are overrepresented. This trend is alarming because there are qualified minority students who have a great chance of being successful in AP classes according to AP Potential data. For some reason though, these qualified minority and low income students are nevertheless …
Photo-Induced Protonation Of Polyaniline Composites And Mechanistic Study Of The Degradation Of Polychlorinated Biphenyls With Zero-Valent Magnesium, Candace Kirkland
Photo-Induced Protonation Of Polyaniline Composites And Mechanistic Study Of The Degradation Of Polychlorinated Biphenyls With Zero-Valent Magnesium, Candace Kirkland
Electronic Theses and Dissertations
As technology advances, a need for non-metal, conductive materials has arisen for several types of applications. Lithographic techniques are helpful to develop some of these applications. Such techniques require materials that are insulating and become conductive after irradiated. Composites of polyaniline in its emeraldine base form (PANI-EB) doped with photo-acid generators (PAG) become conductive upon photo-irradiation. This increase in conductivity is due to the protonation of PANI-EB. Such materials may be utilized to fabricate conducting patterns by photo-irradiation; however, the conductivity obtained by direct irradiation of PANI-EB/PAG composites is normally quite low (<10-3 S/cm) due to aggregation of highly loaded PAG. In this work, poly(ethylene glycol) (PEG), a proton transfer polymer, was added to PANI-EB/PAG. Results showed the addition of low molecular weight (MW) (550) PEG significantly enhanced the photo-induced conductivity to a level comparable to that of PANI-salt synthesized by oxidizing aniline in the presence of an acid. High MW (8000) PEG is less effective than PEG 550, and composites of PANI-EB and N-PEG-PANI showed conductivity as high as 102 S/cm after treatment with HCl vapor. The photo-induced conductivity of the N-PEG-PANI/PANI-EB/PAG composite reached 10-2-10-1 S/cm. Polychlorinated biphenyls (PCBs) are a class of chemicals with 209 different congeners, some of which are known carcinogens, and are persistent organic pollutants in the environment. After its synthesis, it was seen as a phenomenal additive in a multitude of different applications leading to the wide spread use of PCBs and a need for a safe, effective, and inexpensive remediation technique. While it is known that magnesium can degrade PCBs, the mechanism of this reaction was not well-understood. In order for magnesium to be broadly used as a remediation tool, it is necessary to fully understand how the reaction is taking place and if the PCBs are able to be fully dechlorinated into biphenyl. This research focuses on the hydrodechlorination of PCBs with zero-valent magnesium in acidified ethanol. The degradation pathways of 2, 2', 3, 5, 5', 6- hexachlorobiphenyl were investigated to determine the identity of the daughter PCBs produced, how and if they continue to be dechlorinated into biphenyl. The proton source for this hydrodehalogenation reaction was also studied using both deuterated solvent and acid to give more detail to the mechanism of this reaction.
Mothers' Temperament And Personality: Their Roles In Parenting Behaviors, Parent Locus Of Control, And The Outcomes Of Young Children, Jayme Puff
Electronic Theses and Dissertations
Many researchers have used the terms 'temperament' and 'personality' interchangeably when describing parents' behavioral styles. Although individual relationships among parents' temperament and personality, parenting behaviors, other parent characteristics, and young children's outcomes have been documented in the literature, parents' temperament and personality have not been examined collectively in conjunction with parenting and child outcome variables. As part of this study, 214 culturally diverse mothers with young children who ranged in age from 2- to 6-years rated their own temperament and personality, their parenting characteristics, and their young child's functioning (i.e., temperament and emotional and behavioral functioning). When examining mothers' temperament …