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Monitoring Pollen Counts And Pollen Allergy Index Using Satellite Observations In East Coast Of The United States, Murat Cagatay Kececi
Monitoring Pollen Counts And Pollen Allergy Index Using Satellite Observations In East Coast Of The United States, Murat Cagatay Kececi
Electronic Theses and Dissertations
Allergic diseases have become increasingly common over the world during the last four decades, and they are affecting millions of people. Pollination is an important process in the life cycle of plants. However, pollen exposure is associated with allergic diseases such as asthma and seasonal allergic rhinitis (hay fever). As a result, the total annual expenditure for asthma-associated morbidity is about $56 billion in the United States, and the overall cost of allergic diseases is over $18 billion annually. For allergic rhinitis, the annual medical cost is approximately $3.4 billion. The intensity and frequency of the pollen exposures can be …
Effect Of Grazing Pressure On Cattle Grazing Cool Season Annual Forages, Brooke Brunsvig
Effect Of Grazing Pressure On Cattle Grazing Cool Season Annual Forages, Brooke Brunsvig
Electronic Theses and Dissertations
Ruminants can use plant fiber to produce food products that provide nourishment to humans. However, a precise understanding of specific plants selected by grazing ruminants remains elusive. Many long- and short-term factors impact cattle grazing behavior. Ultimately, grazing behavior can affect forage available for grazing, nutrient density of forage, dry matter intake, and animal performance. A myriad of grazing management strategies have been developed utilizing animal behavior to allow more efficient use of forage resources. Many management strategies based on manipulation of grazing behavior are simple and cost effective. Optimal performance of individual animals and amount of animal products produced …
The Cattle Dung Arthropod Community In Eastern South Dakota: Their Colonization, Impact On Degradation, And Response To Rangeland Management, Jacob Pecenka
Electronic Theses and Dissertations
Cattle grazing operations are an important industry throughout the world and a vital component of the economy of the Northern Great Plains. Rangeland management is important to ensure that cattle grazing remains not only profitable but also environmentally sustainable. Conventionally managed rangeland systems that practice continuous grazing and repeated applications of chemicals such as avermectins pose a risk to the continuing productivity of rangelands. These practices have ecological consequences, primarily to the arthropod community that inhabits cattle dung pats. This diverse community works together to recycle dung pats and make the nutrients in dung accessible to the surrounding plant community, …
A Comparison Of Land Use And Land Cover In Public Lands Of The Northwestern Great Plains And High Plains Ecoregions And The Implications For Grassland Birds, Dawn L. Siemonsma
A Comparison Of Land Use And Land Cover In Public Lands Of The Northwestern Great Plains And High Plains Ecoregions And The Implications For Grassland Birds, Dawn L. Siemonsma
Electronic Theses and Dissertations
Loss and degradation of grassland habitat are driving forces that contribute to widespread declines of grassland birds in the United States. Many studies have evaluated habitat needs for the conservation of grassland birds, but the relative contribution of public lands in representing and maintaining avian biodiversity remains poorly understood. Having a better understanding of the role that publicly managed grasslands play in the conservation of grassland bird habitat is important for assessing the value of the investment the American public makes in these lands. Therefore, I investigated spatial relations among variations in amounts and distributions of publicly owned and managed …
Effect Of Pre-Marketing Management Practices On Shrink Loss In Lambs, Ann Kolthoff
Effect Of Pre-Marketing Management Practices On Shrink Loss In Lambs, Ann Kolthoff
Electronic Theses and Dissertations
Two experiments were conducted to evaluate the effects of three common lamb pre-marketing management practices on live weight shrink loss. Additionally a producer survey was conducted to assess current marketing practices in the North Central region of the US. In these experiments, Exp. 1 (feeder lambs) and 2 (finished lambs), 60 commercial Polypay lambs (Exp. 1: 37.65 ± 0.30 kg of BW; Exp. 2: 52.56 ± 0.14 kg of BW) were allocated for each experiment to 3 treatment groups (n=20 lambs) in a 3 x 3 Latin square design. Treatments were the pre-marketing practices: original pen (ORG), transition pen (TRANS), …
Understanding The Effect Of Bvdv On Innate Immune Response Of Neutrophils, Neelu Singh Thakur
Understanding The Effect Of Bvdv On Innate Immune Response Of Neutrophils, Neelu Singh Thakur
Electronic Theses and Dissertations
Bovine viral diarrhea virus (BVDV) is one of the highly prevalent and economically important diseases of cattle industry worldwide. The two major consequences of this disease are persistent infection and immunosuppression. Several studies have been done to determine the underline mechanisms of BVDV-induced immunosuppression targeting antigen presenting cells, adaptive immune system cells and cytokine gene expression. However, very little research has been done to determine the effect of BVDV on neutrophils. Neutrophils are one of the most abundant while blood cells (WBC) in the peripheral blood, which play a critical role in the innate as well as adaptive immune response. …
Relationship Of The Fractal And Chemical Characteristics Of Self-Assembled Natural Organic Matter, Dennis K. Gibson
Relationship Of The Fractal And Chemical Characteristics Of Self-Assembled Natural Organic Matter, Dennis K. Gibson
Electronic Theses and Dissertations
Natural Organic Matter (NOM) is a heterogeneous mixture formed by the degradation of organic substances during early diagenesis in surficial environments. It has been shown that the interaction of the components that comprise this mixture has a significant impact on its microbial mineralization to CO2. The extent of NOM selfassembly is emerging as an important factor in understanding its role in the global geochemical carbon cycle, and it is beginning to appear that it may be more important than the chemical composition of a sample. The overall goal of this research is to establish NOM’s self-assembled “architecture” and …
Downregulation In Ifngr1 Increases Suspectiblity To Mycobacterium Avium Subspecies Paratuberculosis Infection In Crohn's Disease, Zin Mar Htun
Electronic Theses and Dissertations
BACKGROUND: Crohn's disease (CD) is an inflammatory bowel disease (IBD) and has been associated with Mycobacterium avium subspecies paratuberculosis (MAP). MAP has been detected in stool, tissue and blood samples from patients with CD. Gamma interferon (γ-IFN) is an inflammatory cytokine that plays a crucial role in killing intracellular pathogens like MAP, and its receptor (IFNGR1) mutations cause immunodeficiency and severe disseminated mycobacterial infections. The role of MAP in association with IFNGR1 mutation in CD patients have not been investigated. METHODS: In this study, we investigated blood samples of 79 human subjects for MAP infection in association with IFNGR1 gene …
Discovery And Characterization Of Novel Antimicrobials Against Mycobacterium Tuberculosis, Carolina Rodrigues Felix
Discovery And Characterization Of Novel Antimicrobials Against Mycobacterium Tuberculosis, Carolina Rodrigues Felix
Electronic Theses and Dissertations
Tuberculosis disease is currently a global health emergency, causing the most deaths worldwide due a single infectious agent. Eradication of TB is hampered by lack of an effective vaccine and poor treatment options. During infection, host-derived cues such as hypoxia and starvation induce Mycobacterium tuberculosis to halt replication and become dormant, which leads to tolerance to front-line antibiotics used in the TB treatment. This dormant phenotype causes delayed clearance of M. tuberculosis, therefore a long treatment time is required for stable cure without relapse. Poor patient compliance increases the emergence of drug resistant strains, posing yet another challenge for the …
Intrinsic Factors Affecting Decomposition Changes In Archaeological Head Hair From Kellis 2 Cemetery, Dakhleh Oasis, Egypt, Kathleen Cole
Intrinsic Factors Affecting Decomposition Changes In Archaeological Head Hair From Kellis 2 Cemetery, Dakhleh Oasis, Egypt, Kathleen Cole
Electronic Theses and Dissertations
Post-mortem hair root degradation, and associated characteristics such as post-mortem root banding, brush-like ends, and hard keratin points, has remained a little understood phenomenon in the forensics discipline since its discovery in the 1800's. At present, the underlying causes of these characteristics are still unknown. In addition, there is no standardization for preparing samples for forensic or archaeological analysis. In this study, 1200 hairs from a total of 51 individuals (males, n = 22; females, n = 29) ranging in age from 16 to 60+ and interred at the Kellis 2 cemetery in the Dakhleh Oasis, Egypt are examined microscopically …
The Behavior Of Humans And Wildlife With Respect To Roads: Insights For Mitigation And Management, Molly Grace
The Behavior Of Humans And Wildlife With Respect To Roads: Insights For Mitigation And Management, Molly Grace
Electronic Theses and Dissertations
Road ecology is the study of how roads and wildlife interact. Traditionally, road ecologists have primarily focused on one effect of roads: roadkill. Though roadkill can have devastating effects on wildlife populations, roads have sub-lethal impacts that are gaining more and more attention from the scientific community. These sub-lethal impacts include noise, light, and chemical pollution as well as altered habitat structure, which can all influence animal behavior. In this dissertation, I applied a behavioral ecology framework to study specific lethal and sub-lethal road effects with the goal of improving mitigation efforts. In Chapters 1 and 2, I evaluated how …
Predicting Undergraduate Retention In Stem Majors Based On Demographics, Math Ability, And Career Development Factors, Christopher Belser
Predicting Undergraduate Retention In Stem Majors Based On Demographics, Math Ability, And Career Development Factors, Christopher Belser
Electronic Theses and Dissertations
Science, technology, engineering, and math (STEM) fields are currently facing a crisis with respect to filling jobs with qualified workers (NSF, 2013; NAS, 2011). While advancements in these industries have translated into job growth, post-secondary declaration and retention rates within STEM majors lag behind industry needs (Carnevale et al., 2011; Chen, 2013; Koenig et al., 2012). Although researchers previously investigated demographic variables and math-related variables in the context of STEM retention (Beasley & Fischer, 2012; CollegeBoard, 2012; Cundiff et al., 2013; Gayles & Ampaw, 2014; Le et al., 2014; Nosek & Smyth, 2011; Riegle-Crumb & King, 2010), the need exists …
An Investigation Of State College To University Transfer Students' Sense Of Belonging, Claire Brady
An Investigation Of State College To University Transfer Students' Sense Of Belonging, Claire Brady
Electronic Theses and Dissertations
The purpose of this mixed methods study was to examine the sense of belonging of state college transfer students who enroll at a large research-intensive university through structured and unstructured transfer pathways using the Sense of Belonging Instrument (SBI; Hoffman, Richmond, Morrow, & Solomon, 2002). The SBI includes five subscales (Peer Support, Faculty Support, Classroom Comfort, Isolation, and Empathetic Faculty Understanding). To date, no systematic investigation has considered the construct of belonging with this population or transfer pathway. The findings from this study (n = 54) found a positive statistically significant correlation between Peer Support and Isolation (r(52) =.801, p …
Examining The Experiences Of Latino/A Parents Of First-Generation College Students Pursuing A Doctoral Degree, Natalia Toro
Examining The Experiences Of Latino/A Parents Of First-Generation College Students Pursuing A Doctoral Degree, Natalia Toro
Electronic Theses and Dissertations
Research points to Latino/a parents as an important source of motivation and support for high achieving Latino/a students who are the first in their families to go to college (Arellano & Padilla, 2006; Gandara, 1982; 1994; Hurtado & Sinha, 2006; Zalaquett, 2005); however, very little is known about their experience as they parent children whose educational paths are so different from their own. Cultural values such as collectivism and familism play a unique role in the level of connection between these parents and their children (Suarez-Orozco & Suarez-Orozco, 1995), creating dynamics that merit exploration. This dissertation qualitatively examines how seven …
An Exploration Of The Feasibility Of Functional Near-Infrared Spectroscopy As A Neurofeedback Cueing System For The Mitigation Of The Vigilance Decrement, Gabriella Hancock
An Exploration Of The Feasibility Of Functional Near-Infrared Spectroscopy As A Neurofeedback Cueing System For The Mitigation Of The Vigilance Decrement, Gabriella Hancock
Electronic Theses and Dissertations
Vigilance is the capacity for observers to maintain attention over extended periods of time, and has most often been operationalized as the ability to detect rare and critical signals (Davies & Parasuraman, 1982; Parasuraman, 1979; Warm, 1984). Humans, however, have natural physical and cognitive limitations that preclude successful long-term vigilance performance and consequently, without some means of assistance, failures in operator vigilance are likely to occur. Such a decline in monitoring performance over time has been a robust finding in vigilance experiments for decades and has been called the vigilance decrement function (Davies & Parasuraman, 1982; Mackworth, 1948). One of …
Factors Influencing Hypoglycemia Care Utilization And Outcomes Among Adult Diabetic Patients Admitted To Hospitals: A Predictive Model, Waleed Kattan
Factors Influencing Hypoglycemia Care Utilization And Outcomes Among Adult Diabetic Patients Admitted To Hospitals: A Predictive Model, Waleed Kattan
Electronic Theses and Dissertations
Diabetes Miletus (DM) is one of the major health problems in the United States. Despite all efforts made to combat this disease, its incidence and prevalence are steadily increasing. One of the common and serious side effects of treatment among people with diabetes is hypoglycemia (HG), where the level of blood glucose falls below the optimum level. Episodes of HG vary in their severity. Nevertheless, many require medical assistance and are usually associated with higher utilization of healthcare resources such as frequent emergency department visits and physician visits. Additionally, patients who experience HG frequently have poor outcomes such as higher …
Using Biomarkers To Assess The Migratory Ecology And Reproduction Of The Florida Green Turtle (Chelonia Mydas), Ryan Chabot
Using Biomarkers To Assess The Migratory Ecology And Reproduction Of The Florida Green Turtle (Chelonia Mydas), Ryan Chabot
Electronic Theses and Dissertations
Migratory connectivity between breeding and foraging areas is a vital component of the ecology of a diverse collection of marine vertebrates. Habitat quality, composition, and resource availability at these locations have direct ramifications for individual fitness. The green turtle (Chelonia mydas) is a long-lived, highly migratory species of conservation concern. Important green turtle nesting habitat in Florida is protected, but more information is needed to identify foraging habitats and the influence these habitats have on reproduction. Here, I used stable isotope analysis of δ13C, δ15N, and δ34S and satellite telemetry validation to determine the number of putative foraging areas used …
Cross-Continental Insights Into Jaguar (Panthera Onca) Ecology And Conservation, Joe Figel
Cross-Continental Insights Into Jaguar (Panthera Onca) Ecology And Conservation, Joe Figel
Electronic Theses and Dissertations
The jaguar (Panthera onca) is a widely distributed large carnivore and the focal species of a range-wide connectivity initiative known as the jaguar conservation network (JCN). Comprised of ~83 Jaguar Conservation Units (JCUs) and ~75 corridors from northern Mexico to Argentina, the JCN functions as a conduit for jaguar movement and gene flow. Key linkages in the network are imperiled by human population growth, large-scale agriculture, highway expansion, and other infrastructural development. Labeled "corridors of concern," these vulnerable linkages are imperative to the maintenance of connectivity and genetic diversity throughout jaguar distribution. I take a multi-faceted approach to analyze conservation …
The Workplace Consequences Of Obesity: Impacts On The Organization, The Employee, And The Proximal Coworker, Michael Johnson
The Workplace Consequences Of Obesity: Impacts On The Organization, The Employee, And The Proximal Coworker, Michael Johnson
Electronic Theses and Dissertations
Obesity is a condition affecting billions of people around the world. Its societal, psychological, and health outcomes have been well documented across multiple disciplines. Moreover, obesity leads to serious workplace outcomes for the organization, the obese individual, and the coworkers working around the obese employee. With this multi-chapter dissertation, I review the literature on the workplace consequences of obesity and extend one potentially fruitful area within this literature base: obesity's impact on a proximal employee. Chapter 1 reviews the workplace consequences associated with obesity. The purpose is to evaluate and integrate this multidisciplinary literature so that management scholars can take …
The Effect Of Food Labeling And Environmental Cues On Food Consumption Judgments And Choices., Sarah Lefebvre
The Effect Of Food Labeling And Environmental Cues On Food Consumption Judgments And Choices., Sarah Lefebvre
Electronic Theses and Dissertations
As obesity levels reach epidemic levels globally, an understanding of the multitude of factors that influence both eating behavior and food choice is necessary. This dissertation attempts to investigate the role of emerging food categories, namely organic foods, and the influence of environmental cues on eating behaviors and choices. This goal is accomplished through three essays. The first essay focuses on the organic food trend and consumer taste expectations. Specifically, this essay explores how the presence of an organic label influences taste expectations differently for minimally processed versus highly processed foods due to the level of consistency (congruency) between the …
Cathepsin B Regulates Vldl Secretion Through Lfabp Cleavage, Simeon Thibeaux
Cathepsin B Regulates Vldl Secretion Through Lfabp Cleavage, Simeon Thibeaux
Electronic Theses and Dissertations
The liver is tasked with managing the concentration of various metabolites in the blood, and of particular importance is the uptake of free fatty-acid (FFA), as elevated concentrations of FFA are toxic to cells. FFAs are transported across the cell membrane by CD36 and distributed by LFABP to the endoplasmic reticulum (ER), where they are esterified to glycerol, yielding more chemically inert triglyceride (TAG), which is essential to the process of VLDL assembly. VLDL secretion distributes energy rich TAG to peripheral tissues, and its dysfunction leads to hepatic steatosis, which may progress into hepatocellular carcinoma. The present study examined the …
Picosecond Yb-Doped Fiber Amplifier, Weibin Zhu
Picosecond Yb-Doped Fiber Amplifier, Weibin Zhu
Electronic Theses and Dissertations
Due to its versatility, rare earth doped fiber amplifier (RDFA) has attracted a lot of researchers worldwide in recent years. Depends on different kinds of rare earth ion, RDFA can be categorized into neodymium doped fiber amplifier (NDFA), erbium doped fiber amplifier (EDFA), thulium doped fiber amplifier (TDFA), and so forth. Among many kinds of RDFA, the ytterbium doped fiber amplifier (YDFA) has received even more interest, especially in high power application, mainly because of its broad gain bandwidth and high conversion efficiency which are due to its relatively simple electronic structure. The purpose of this research is to study …
A Study Of Central Florida College Students' Acceptance Of The Theory Of Evolution, Microevolution, Macroevolution, And Human Evolution, David Schleith
A Study Of Central Florida College Students' Acceptance Of The Theory Of Evolution, Microevolution, Macroevolution, And Human Evolution, David Schleith
Electronic Theses and Dissertations
In order to study the teaching and learning of the theory of evolution and determine levels of acceptance of the theory of evolution among college students studying biology in Central Florida, the Inventory of Student Evolution Acceptance, I-SEA, was administered to over 500 university students enrolled in a biology course during the Fall 2016 term. An analysis of 489 completed surveys demonstrated strong overall acceptance of the theory of evolution (average score = 103 out of 120 total possible). Of all students, 78% fell into the category of very high acceptance of the theory of evolution. Students who reported attending …
The Impact Of Ongoing Science Professional Development On Standardized Assessments Of Student Achievement, Leah Torres
The Impact Of Ongoing Science Professional Development On Standardized Assessments Of Student Achievement, Leah Torres
Electronic Theses and Dissertations
The purpose of this study was to identify how ongoing science professional development impact students' achievement on standardized assessments. The students' end-of-year assessment and State Science Assessment data were collected from a Central Florida school district. The student data were divided into categories based on teachers' participation in on-going professional development opportunities. The teachers were categorized by the number of types of professional development opportunities they attended. The mean assessment scores of students whose all teachers did or did not participate were calculated, and t-tests were run to find the significance between the means. There was no significance in the …
Predicting Gun Ownership In America: Birth Cohort, Political Views, And Attitudes Towards Gun Control Legislation, Jared Adams
Predicting Gun Ownership In America: Birth Cohort, Political Views, And Attitudes Towards Gun Control Legislation, Jared Adams
Electronic Theses and Dissertations
With mass shootings occurring with frightening regularity, research into gun ownership behavior is becoming increasingly important for public policy creation and public safety. While extant research tells us that firearm ownership is woven deep into the historical fabric of American culture, scholarship has yet to fully explore predictors for gun ownership. Employing 2015 Pew Research Center political survey data, this study examines the predictive effects of birth cohort, political ideology, and attitudes towards gun control legislation on gun ownership, with and without controls, using hierarchical binary logistic regression models. The presented models examine three separate cohorts: The Millennials, Generation X, …
Dating Violence Victimization And Substance Use: Do Genes Play A Role?, Alexis Yohros
Dating Violence Victimization And Substance Use: Do Genes Play A Role?, Alexis Yohros
Electronic Theses and Dissertations
Dating violence (DV) victimization in adolescence has been shown to be predictive of both negative emotions and delinquent behavior later in life. However, research that delves into DV victimization and subsequent outcomes, such as deviant behavior, is largely atheoretical. Robert Agnew's general strain theory (GST) provides a theoretical framework to address this limitation. In focusing on negative interactions with others, the theory posits that strain produces negative affect states which leads to deviant or criminal coping. Prior research has identified victimization as a strain, a type of noxious stimuli, which is significantly related to negative emotionality, crime, and deviance. I …
Quantification Of Non-Stoichiometry And Impurities In Transparent Yag Ceramics By Laser-Induced Breakdown Spectroscopy (Libs), Sudeep Pandey
Quantification Of Non-Stoichiometry And Impurities In Transparent Yag Ceramics By Laser-Induced Breakdown Spectroscopy (Libs), Sudeep Pandey
Electronic Theses and Dissertations
Transparent ceramics are an important class of optical materials with applications in street-lighting, high-strength windows, electro- and magneto-optical isolators, high-power laser gain media and nuclear radiation detectors. Compared to single-crystal growth, ceramic processing enables size scalability, near net-shape forming and prevents issues associated with dopant segregation and inhomogeneity, such as stress-induced birefringence and wavefront distortions. The fabrication of high optical grade ceramics by route of powder sintering, relies on a controlled set of techniques preventing the formation of scattering centers (pores and secondary phases) and harmful point defects (color centers, charge-carrier trapping sites). This thesis work investigates a novel approach …
Damned To Hell: The Black Church Experience For College Educated Lesbians, Gays, And Bisexuals, Edwanna Andrews
Damned To Hell: The Black Church Experience For College Educated Lesbians, Gays, And Bisexuals, Edwanna Andrews
Electronic Theses and Dissertations
Despite increased acceptance nationally towards same-sex sexuality, intolerance within the Black Church against those who identify as lesbian, gay, and bisexual (LGB) continues to persist. As one of the most important institutions in the African American community, the significance of the Black Church makes the religious experience particularly influential. LGBs frequently experience homonegativity in the Black Church in the form of homophobic laced sermons, Microaggressions, and church gossip. The stigma LGBs encounter around homosexuality in the Black Church has created a dissonance between their religious beliefs, faith, and sexual identity. This study explores the multifaceted experience of lesbian, gay, and …
Discovery And Characterization Of Antimalarials With Novel Mechanisms Of Action, Bracken Roberts
Discovery And Characterization Of Antimalarials With Novel Mechanisms Of Action, Bracken Roberts
Electronic Theses and Dissertations
Malaria kills over 500,000 people each year and over a third of the global population is at risk of infection. Though the human race has been fighting the malaria war for over 4,000 years and we have made great strides in eliminating malaria from many countries, we are treading on the edge of what could be another malaria epidemic primarily due to widespread drug resistance. There are documented cases of resistance for every known antimalarial in use today, including Artemisinins. It is critical that we open a new window of discovery in development of next generation antimalarials that circumvent current …
Improving Instructional Strategies In Higher Education For Students With A Learning Disability In A General Education Science Course, Brian Ogle
Electronic Theses and Dissertations
This Dissertation in Practice employed a mixed-methods design to identify preferred instructional methods in a college level science course as well as the self-reported challenges to learning science in college by students with a learning disability. In addition, the relationships between preferred instructional strategies and learner characteristics such as declared major, and learning disability were examined. Qualitative and quantitative data was collected from a sample of 48 participants using an electronic survey. Additionally, eight participants participated in focus groups to collect in-depth qualitative data. All participants are current students enrolled full-time at Beacon College. Each participant completed a science college …