Digital Commons Network^™

The Application Of Gage R&R Analysis In S Six Sigma Case Of Improving And Optimizing An Automotive Die Casting Product’S Measurement System, Qizheng Ren

Masters Theses & Specialist Projects

With the rapid development of automation technology in automotive manufacturing processes, massive and efficient production is a current trend. Therefore, measurement systems with accurate and automated measuring instruments are sought by automotive companies and suppliers. However, the problematic measuring instruments with unreliable accuracy and stability lead to erroneous measurements and wrong quality decisions that cause manufacturers huge profit losses. An effective method called “measurement system analysis” can be applied to define and eliminate erroneous measurements to ensure adequate reliability. An automotive transmission die casting parts supplier called company T was suffering a serious profit loss due to the erroneous measurements …

Motivational Differences In Why Sports Fans Attend Minor League Baseball And Roller Derby Events, Anissa S. Pugh

Masters Theses & Specialist Projects

The aim of the current study was to examine the differences in sport fan motivation factors between mainstream (Minor League baseball) and atypical (roller derby) fans. Eighty-one fans (40 Minor League baseball and 41 roller derby) completed an 8 question demographic survey, a 26-item Sport Fan Motivation Scale, a 7-item Sport Spectator Identification Scale, and a 10-item Sport Fan Exploratory Curiosity Scale. It was believed that fans of Minor League baseball would be more motivated by the entertainment factor than roller derby fans. While roller derby fans would be more motivated by eustress, group affiliation and family factors at the …

Age And Context Dependency In Causal Learning, Katherine Danielle Lowry

Masters Theses & Specialist Projects

The ability to make associations between causal cues and outcomes is an important adaptive trait that allows us to properly prepare for an upcoming event. Encoding context is a type of associative processing; thus, context is also an important aspect of acquiring causal relationships. Context gives us additional information about how two events are related and allows us to be flexible in how we respond to causal cues. Research indicates that older adults exhibit an associative deficit as well as a deficit in contextual processing; therefore, it seems likely that these deficits are responsible for the deficit in older adults’ …

An Investigation Of Groundwater Flow In The Vicinity Of Patoka Dam, Indiana, Lee Anne Bledsoe

Masters Theses & Specialist Projects

Several dams throughout the United States have been built on karst terrains, where soluble limestone bedrock has been dissolved to form features such as caves, sinkholes, and underground rivers. In such karst regions, subsurface hydrology can play an integral role in the condition, operation, and safety of dams and should be considered during risk assessment. Patoka Dam, near Jasper, Indiana, is situated on a well-developed karst landscape/aquifer system, faces significant potential challenges, and recently underwent risk assessment. A groundwater flow investigation using multiple fluorescent tracer tests, analysis of water-table elevations, isopach mapping of the Glen Dean Limestone, and spring hydrograph …

The Effects Of Aging On Associative Learning And Memory Retrieval In Causal Judgment, Jessica Parks Arnold

Masters Theses & Specialist Projects

Research has shown that detecting and judging causal relationships requires associative learning and memory. Retrospective revaluation of causal cues requires associative memory (Aitken, Larkin, & Dickinson, 2001) to bind multiple cues together and use these associations to retrieve unseen cues for revaluation of their associative value. The difficulty that older adults experience with respect to retrospective revaluation could occur because of their deficit in associative binding and retrieval (Mutter, Atchley, & Plumlee, 2012). Like retrospective revaluation, blocking requires cue – outcome associative learning, but unlike retrospective revaluation, blocking does not require binding two cues together nor does it require using …

Reading Intervention Using Interactive Metronome Treatment, Denise Lewis

Masters Theses & Specialist Projects

The purpose of this research study was to examine the effects of Interactive Metronome (IM), a non-academic treatment, when integrated with reading intervention. The intention was to analyze the degree to which IM affected fluency when introduced alongside reading intervention. The research questions that guided this study focused on how internal timekeeping affects reading fluency. This study used a multiple baseline across participant’s single-subject design. Three participants were monitored to determine a baseline using Curriculum Based Measures and Correct Word Per Minute data, and then each received a total of 15 hours of Interactive Metronome treatment. Progress was documented with …

Fused-Molecular Systems For Organic Light Emitting Diodes, Avinash Jami

Masters Theses & Specialist Projects

Organic light emitting diodes (OLEDs) are electronic devices made by sandwitching organic light emissive materials between two electrodes. When voltage is applied across the two conductors, a bright light is generated. The color of the emitting light depends on the band gap of the semiconducting material. The work described here focuses on designing and synthesizing narrow band gap molecular systems derived from fused-arene derivatives for producing organic blue light emitting diodes. Three molecular systems derived from anthracene, pyrene, and carbazole, were designed and synthesized. Two molecular systems of anthracen-9-ylmethyl anthracene-9- carboxylate and pyren-1-ylmethyl 4-bromobenzoate were synthesized through Steglich esterification reaction …

Examining The Relationship Between Functions Of Self-Directed Violence And The Suicide Implicit Association Test, Cody D. Haynes

Masters Theses & Specialist Projects

Suicide and non-suicidal self-injury are concerning and prevalent phenomena in the United States; as a result, much research has been undertaken in order to investigate these topics (Centers for Disease Control and Prevention, 2015a). Although the exploration of risk factors is a common approach, other novel approaches have been developed in order to better understand self-directed violence (Klonsky & May, 2013). One of these is a focus on functions served by these behaviors, which is theorized to contribute to grasping their etiologies and help provide effective treatment (Glenn & Klonsky, 2011). Another approach is investigating implicit cognition and selfassociations’ influences …

Selection Of Pathogen Surrogates And Fresh Produce Safety: Implications For Public Health And Irrigation Water Quality Policy, Ethan Givan

Masters Theses & Specialist Projects

Foodborne illness continues to be a substantial public health issue in the United States, with fresh produce being one of the leading causes of outbreaks. Understanding routes of contamination of fresh produce and how pathogens survive on plant surfaces is paramount in improving food safety and reducing risk to public health. The objectives of this study were to select environmental E.coli isolates as pathogen surrogates of Salmonella typhimurium and E.coli O157:H7, assess lettuce plant contamination by spray irrigation water, and evaluate a common industry quality control (QC) E.coli strain (ATCC 25922). Selections of E.coli surrogates were made utilizing biofilm and …

Distributed Approach For Peptide Identification, Naga V K Abhinav Vedanbhatla

Masters Theses & Specialist Projects

A crucial step in protein identification is peptide identification. The Peptide Spectrum Match (PSM) information set is enormous. Hence, it is a time-consuming procedure to work on a single machine. PSMs are situated by a cross connection, a factual score, or a probability that the match between the trial and speculative is right and original. This procedure takes quite a while to execute. So, there is demand for enhancement of the performance to handle extensive peptide information sets. Development of appropriate distributed frameworks are expected to lessen the processing time.

The designed framework uses a peptide handling algorithm named C-Ranker, …

The Examination Of Enrichment Using Space And Food For African Elephants (Loxodonta Africana) At The San Diego Zoo Safari Park, Charlotte Hacker

Masters Theses & Specialist Projects

Concern for elephant welfare in zoological facilities has prompted a number of exhibit and management modifications, including those involving enrichment. Knowledge of how these changes impact measures of health and wellbeing, such as elephant movement and behavior, is crucial as the effects of multiple enrichment types and their interactions are largely understudied. The present study used observations and GPS unit collected data to determine the effects of space and food on the walking distance and behavior of thirteen African elephants, whose dominance structure was ascertained by the handlers at the San Diego Zoo Safari Park (SDZSP). This facility has two …

Testing Usda Certified Organic And Non-Gmo Verified Project Labeled Foods For The Presence Of Genetic Modifications, Ryan Loren Phelps

Masters Theses & Specialist Projects

Genetically Modified Organisms (GMOs) are plants or animals that have been produced using genetic insertion or deletion via technology (also called genetic engineering or GE). Merged DNA from different species creates combinations of plant, animal, bacteria and/or virus genes that cannot occur in nature or in traditional crossbreeding.

Our goal was to determine the presence or absence of GMO markers in USDA Organic Certified and in Non-GMO Project food products. We investigated only corn or soy-based products that were purchased from many types of retailers. Our study was limited to products that contained a label for USDA organic certification and/or …

Expression And Purification Of Unlabelled And Isotopically Labelled Human Fibroblast Growth Factor-1 And Its Receptor Relevance In Cancer Research, Oluwadamilola Filani

Masters Theses & Specialist Projects

Studies show that fibroblast growth factors (FGFs) control variety of cellular activities such as mitosis, cell differentiation, survival and angiogenesis. The FGF family consists of 23 different heparin-binding proteins. One of the most intensively studied members is human FGF-1 (hFGF-1) because of its critical role in the formation of blood vessels and cell proliferation in some types of cancer. The biological activities of FGFs are primarily mediated via interactions with fibroblast growth factor receptors (FGFR) and are a potent target in cancer. In this study, we report an efficient affinity column purification of hFGF-1 and the D2 domain of FGFR-2 …

A Sem Study Of Copper Corrosion In Bowling Green Supply Lines, Reema M. Alghamdi

Masters Theses & Specialist Projects

Recently, the rate of corrosion of copper water pipes in Bowling Green, Kentucky has unexpectedly accelerated. The specific reasons for this are unknown. Our aim is to elucidate the factors enhancing the corrosion and help understand the primary mechanisms of action. This will help in combating and reducing future corrosion incidents leading to pipe failure, thus reducing losses experienced when these pipes are replaced. This study seeks to explore the characteristics and factors involved. The scanning electron microscopy was used to obtain elemental composition, and images of both inside and outside of the corroded pipes. Strikingly, corrosion primarily occurred on …

Application Of Goldratt’S Thinking Process To Constraints Within An Emergency Department—A Case Study, Augustine O. Amonge

Masters Theses & Specialist Projects

Emergency department (ED) acts as a feeder to many hospitals as it determines a large proportion of admissions. ED also acts as a buffer zone for many patients who cannot get care in other institutions due to insurance issues. Most hospitals are trying to invest heavily on their EDs, but cannot meet patients’ satisfaction in terms of cost and quality of care. There is great need for EDs to understand customers’ expectation given the rising cost of healthcare.

The focus of this study is at an ED center in Bowling Green Kentucky, using theory of constraints (TOC) thinking process application …

Keeping The Magic: Fursona Identity And Performance In The Furry Fandom, Jakob W. Maase

Masters Theses & Specialist Projects

The furry subculture (also known as the anthropomorphic fandom) creates identity through anthropomorphism and therianthropy. Anthropomorphism is the giving of human traits to the non-human. Therianthropy is the giving of animal traits to the human. Through play and creating art, these individuals of the furry subculture take on an anthropomorphic identity (what furries call a fursona) while bridging local and global groups through communication technologies. For this folklore project I conducted ethnographic field works interviews with the Bowling Green, Kentucky fur group. I also build off of the interviews project with an online furry role-play group as well as a …

The Relationship Between Bilingualism, Cognitive Control, And Mind Wandering, Leah J. Shulley

Masters Theses & Specialist Projects

The unique linguistic experience of bilingualism purportedly produces cognitive control advantages. Although there is a significant body of evidence supporting this view, there are also several recently published research studies that failed to replicate bilingual advantages. Furthermore, there is some evidence of a publication bias that favors findings supporting a bilingual advantage. The purpose of this study was to address this discrepancy in the literature by examining performance of bilinguals and monolinguals on a variety of cognitive control tasks. A second purpose was to determine how bilinguals are able to achieve better performance if they do indeed have an advantage. …

Age Differences In The Impact Of Emotional Cues On Subsequent Target Detection, Brandon Wade Coffey

Masters Theses & Specialist Projects

Emotional cues within the environment capture our attention and influence how we perceive our surroundings. Past research has shown that emotional cues presented before the detection of a perceptual gap can actually impair the perception of elementary visual features (e.g., the lack of detail creating a spatial gap) while simultaneously improving the perception of fast temporal features of vision (e.g., the rapid onset, offset, and re-emergence of a stimulus). This effect has been attributed to amygdalar enhancements of visual inputs conveying emotional features along magnocellular channels. The current study compared participants’ ability to detect spatial and temporal gaps in simple …

Dynamic Tactile Information Is Sufficient For Precise Curvature Discrimination, Jacob R. Cheeseman

Masters Theses & Specialist Projects

Our tactile perceptual experiences occur when we interact, actively and passively, with environmental objects and surfaces. Previous research has demonstrated that active manual exploration enhances the tactile perception of object shape. Nevertheless, the factors that contribute to this enhancement are not well understood. The present study evaluated the ability of 14 older adults to discriminate curved surfaces by actively feeling objects with a single index finger and by passively feeling objects that moved relative to a restrained finger. The curvature discrimination thresholds obtained for passive-dynamic touch were significantly lower than those that occurred during active-dynamic touch. This result demonstrates that …

Examining Associations Between Infant Temperament, Parental Competence, And Family Resources And Their Effects On Parental Sensitivity, Victoria L. Greenwell

Masters Theses & Specialist Projects

A sensitive parent-child relationship is essential in ensuring the healthy mental and physical development of an individual. Parental sensitivity can be affected by parent characteristics, such parental competence and resources as well as child characteristics, such as negative reactivity. The combination of how these parent and infant factors predict parental sensitivity has not been examined with both mothers and fathers. The current study involved 30, 4-month old infants and their mothers and fathers. Parents completed questionnaires measuring infant temperament and parental competence. They also participated in a demographic interview to measure family resources, as well as a dyadic parent-infant face-to-face …

Factors Affecting Academic Procrastination, John Paul Reynolds

Masters Theses & Specialist Projects

This study sought to understand the relationships among locus of control, parenting style, academic procrastination, and financial independence with a population of undergraduate students. A sample of 61 students (39 females, 21 males, 1 other) completed measures of demographics, locus of control, parenting style, and academic procrastination. Participants were recruited within the last two weeks of the semester. Therefore, the sample probably contained a higher percentage of procrastinators than the general population. There were no significant correlations across the total sample. There was a significant positive correlation between higher scores on the Parental Authority Questionnaire authoritative scale and the Procrastination …

The Electrophysiology Of Written Informal Language, Taylor S. Blaetz

Masters Theses & Specialist Projects

Language is an essential component of human behavior. It is ubiquitous, but more importantly, it is malleable and it is constantly changing. Part of the dynamic nature of informal communication is the introduction and adoption of new linguistic elements. Online communication provides a window into this informal public discourse; therefore, it may be useful for testing hypotheses about the processes underlying the acquisition and use of new words. The comprehension of informal language may lead to an understanding of how these new informal words are integrated into our mental lexicon. The current study was an electroencephalographic (EEG) investigation of the …

Definitions And Criteria Used By State Education Departments For Identifying Specific Learning Disabilities, Lauren Faith Coomer

Masters Theses & Specialist Projects

The definition of specific learning disabilities (SLD) and the methods used to identify SLD have been evolving since the 1970s. There have been five studies since 1970 that have focused on the SLD definition that states used and the SLD identification methods. The purpose of this study was to obtain updated information regarding the current prevalence rates of SLD, current SLD definitions, and current methods being used for the identification of SLD across the United States. After examining the regulations and procedures of each state, this study found that all fifty states have adopted the federal definition of SLD that …

Marketing Effects On Consumer Retention And Expenditures In Central Kentucky And North Central Tennessee Floral Industry, Danielle L. Berkshire

Masters Theses & Specialist Projects

Florists in today’s industry are competing against mass-markets that are able to buy and sell fresh-cut flowers at low prices in bulk. Mass-markets offer little or no design or other services. Consumers find it convenient to order flowers online through wire services, paying large fees to order flowers. Order gatherers pose as local floral shops taking consumers orders online or by phone then call the local florist to fill orders. Packaged flowers became popular in the early 2000’s ordering flowers directly from the farm to the consumer. Rural and metropolitan areas of Central Kentucky and North Central Tennessee were surveyed. …

Expectation Numbers Of Cyclic Groups, Miriam Mahannah El-Farrah

Masters Theses & Specialist Projects

When choosing k random elements from a group the kth expectation number is the expected size of the subgroup generated by those specific elements. The main purpose of this thesis is to study the asymptotic properties for the first and second expectation numbers of large cyclic groups. The first chapter introduces the kth expectation number. This formula allows us to determine the expected size of any group. Explicit examples and computations of the first and second expectation number are given in the second chapter. Here we show example of both cyclic and dihedral groups. In chapter three we discuss arithmetic …

Zero-Waste Planning At Higher Education Institutions: A Case Study Of Western Kentucky University, Kianoosh Ebrahimi

Masters Theses & Specialist Projects

Over the past two decades, the number of universities that pursue zero-waste strategies has steadily increased. However, more study is required on several interrelated factors, policy barriers, and infrastructural fundamentals, which each influence the efficiency of waste management structures (WM) at universities. In this work, the role of the aforementioned factors in implementing an efficient sustainable WM program at higher education institutions was investigated, using Western Kentucky University (WKU) as a case study. The objectives of this study were to identify and assess what type of WM strategies should be priorities for a university that may lack stringent WM infrastructure. …

Effects Of Life Review On Happiness And Life Satisfaction In Older Adults, Molly C. White

Masters Theses & Specialist Projects

Life review involves a systematic, chronological review of an individual’s life from birth to death as well as an examination of the meaningfulness of life experiences and events. The purpose of the current study was to discover the effects of life review on happiness and life satisfaction in the older population. Participants from 71 to 85 years of age completed a demographics questionnaire, the Subjective Happiness Scale (SHS) and the Satisfaction With Life Scale (SWLS). SHS and SWLS were completed every other day from the beginning to the end of the data collection process. Once a consistent baseline was reached …

Crisis Of Man To Crisis Of Men: Ray Rice And The Nfl's Transition From Crisis Of Image To Crisis Of Ethics, Heidi E. Sisler

Masters Theses & Specialist Projects

Using typologies by Benoit (1995), Seeger (2006), and Heath (2006) this study argues that when an organization encounters multiple complications (e.g., perceived guilt, magnitude of harm, nature of the victims, etc.) compounding a crisis situation, that the organization’s best course of action is to employ atonement rhetoric. Second, this study also argues for the inclusion of a new best practice in crisis communication, which highlights the importance of organizations to recognize the impact visual evidence, especially video footage, has on complicating crisis response while also increasing demand for an appropriate and timely response. To do this the study uses the …

Examining The Influence Of Negative Labeling On Educational Aspirations, Jessie Schartung

Masters Theses & Specialist Projects

Teenagers are not yet fully developed, creating their self-identity, full of aspiration, and exploring their world through sometimes harmless acts. While it has long been acknowledged that delinquency can lead to a life of crime, criminologists vary on whether a criminal disposition is caused by internal and/or external forces. Labeling theory suggests it could be the negative labels placed upon youth that could inhibit future aspirations more so than the delinquent acts themselves. Using data from the National Youth Survey, this study examines the influence of negative labeling by significant others on educational aspirations among youth with varying levels of …

A Ph Switchable Responsive Surface For The Trapping And Release Of A Hydrophobic Substance, Ali Esmail Karim

Masters Theses & Specialist Projects

Solid phase extraction is one of the most widely used techniques to trap and release compounds in a solution. A hydrophobic substance will stick efficiently to a hydrophobic surface (the “like dissolves like” principle). With an introduced response (i.e. pH change), a responsive surface can change from hydrophobic to hydrophilic, weakening the hydrophobic substance’s attraction and thus facilitate in an easy removal. A surface has been prepared having a terminal anthranilic acid (AA) moiety on silica gel particles, microscope slides, and TLC plates in three steps. First, a vinyl group was attached to the surface. Then, this vinyl group was …