Digital Commons Network^™

The Impact Of Surfactant On The Transport Of Toxoplasma Gondii Oocysts Through Unsaturated Soil, Erin N. Kinsey

All Theses

Toxoplasma gondii is among the most prevalent parasites affecting warm-blooded animals, including humans. In humans, it poses health risks for immunocompromised populations and for fetuses including damage to the eyes brain and other organs. Humans may come in contact with T. gondii through the consumption of infected animal flesh or accidental contact with cat feces. Its life cycle includes numerous intermediate hosts and felids as the definitive host, which has allowed for its spread through nearly the entire world. T. gondii has been detected in open water, soil and animal feeds. Its transport has not been well studied to this …

Job Insecurity Across Borders: An Examination Of Job Insecurity, Perceived Organizational Support, And Turnover Intentions In The United States And China, John Alexander Morgan

All Theses

Job insecurity is growing around the world, with employees staying at their jobs for shorter durations and part-time, contract, and even extremely short-term “gig” work becoming increasingly common. Job insecurity has been linked with several undesirable outcomes for both the individual and the organization, such as higher levels of employee burnout and increased turnover. This thesis seeks to extend the job insecurity literature by treating job insecurity as a demand within the Job Demands-Resources model, with perceived organizational support (POS) as its resource opposite. In addition, I utilized data collected in both the United States and China, providing insights into …

Physical And Virtual Prototyping In Product Design, Matthew S. Sheppard

All Theses

The objective of this research is to demonstrate the role of physical and virtual prototyping in product design. The product development process that was used as a case study for this research was a piece of equipment that improves the ability to capture accurate dimensions of extruder bores of diameter ranging from 39.69 mm to 92.08 mm and depth ranging from 96.52 cm to 327.66 cm. The motivation is that the Eastman Chemical Company expressed difficulty capturing accurate measurements of circularity, diameter, and runout throughout the depth of their polymer extruders because conventional technology is cumbersome at significant depths and …

The Effect Of Composition On The Structure Symmetry And Stability Of Tunnel-Structured Hollandite Ceramics For Nuclear Waste Immobilization, Robert L. Grote

All Dissertations

The ceramic phase hollandite is a component material for some multi-phase ceramic waste forms and has been a prominent ceramic waste form for the immobilization of cesium and strontium radionuclides. The immobilization of cesium is difficult due to its large size and water solubility. This dissertation is focused on understanding the fundamental structure of hollandite and the effect cesium doping has on the properties of hollandite in order to develop a more effective and efficient waste form for cesium immobilization. The topics cover the structure and stability, thermodynamic properties and phase formation, irradiation resistance, and leaching resistance of hollandite. A …

Interfacing The Liquid Sampling- Atmospheric Pressure Glow Discharge Ion Source With Orbitrap Mass Spectrometers For High Accuracy High Precision Isotope Ratio Measurements Of Uranium, Edward Dexter Hoegg

All Dissertations

The integration of the liquid sampling – atmospheric pressure glow discharge (LS-APGD) with Orbitrap mass spectrometers has led to a potential paradigm shift in the field of high certainty isotope ratio measurements. Since the dawn of the atomic age, mass spectrometry has played a critical role in performing isotope ratio measurements of uranium (U), plutonium (Pu) and other radionuclides. Traditionally, these measurements have been made using thermal ionization mass spectrometry (TIMS) instruments and, more recently, inductively coupled plasma mass spectrometry (ICP-MS) instruments. While the ability of these instruments to perform isotope ratio measurements with a high degree of certainty has …

Computational Approaches To Understanding Structure-Function Relationships At The Intersection Of Cellular Organization, Mechanics, And Electrophysiology, Tyler George Harvey

All Dissertations

The heart is a complex mechanical and electrical environment and small changes at the cellular and subcellular scale can have profound impacts at the tissue, organ, and organ system levels. The goal of this research is to better understand structure-function relationships at these cellular and subcellular levels of the cardiac environment. This improved understanding may prove increasingly important as medicine begins shifting toward engineered replacement tissues and organs. Specifically, we work towards this goal by presenting a framework to automatically create finite element models of cells based on optical images. This framework can be customized to model the effects of …

The Effects Of Various Retort Motions On The Rate Of Heat Penetration Of A Food Simulant In Pouches, Mollye Macnaughton

All Dissertations

Processing foods in a retort is a reliable and established method of creating sterile and shelf stable products. The formula of the product and the package size dictates the processing time. Rotary retorts were invented to agitate cans to reduce the processing times and create uniform heating within the can. Recently, horizontal reciprocating agitation has become a feature of retorts referred to as Gentle Motion® and Shaka®. Oscillating agitation is an even newer possible retort motion. This research experiment was designed to (1) determine the effects of oscillating continuously and oscillating-dwell time on the rate of heat penetration in a …

Development Of A Biomimetic, Collagen-Based Scaffold For The Repair And Regeneration Of The Annulus Fibrosus, Ryan Borem

All Dissertations

Annually, over 5.7 million Americans are diagnosed with two IVD-associated pathologies: IVD herniation (IVDH- a mechanical disruption of the concentric fibrous layers of the annulus fibrosus (AF)) and/or degeneration (IVDD- a multifactorial process which initiates within the inner gelatinous core (NP), and results in a biochemical degradation of NP tissue), with over 2.7 million requiring surgical interventions. Although both underlying pathologies are different, quite often they both lead to a decrease in IVD height, impaired mechanical function, and increased pain and disability. These pain symptoms affect approximately 80% of the adult population during their lifetime with estimated expenditures exceeding $85.9 …

Comprehensive Sequencing With Surface Tagmentation Based Technology, Kuan Feng

Biomedical Sciences ETDs

Next-generation sequencing technologies (NGS) have undergone extensive improvements since the invention of the 454 sequencing system in 2005. With tremendous progress in throughput, speed and a dramatic reduction in per-base cost, DNA sequencing is widely used in basic science as well as translational research. However, it is still a challenge to acquire a complete human genome. The long-range information is often missing due to the short length of NGS reads, which leaves many gaps in between scaffolds rather than an entire piece for each chromosome. Moreover, without the long-range information, haplotype-resolved genome sequencing and structural variant detection can be difficult, …

Establishing Benchmark Criteria For Single Chromosome Bacterial Genome Assembly, Timothy J. Krause

School of Biological Sciences: Dissertations, Theses, and Student Research

Adequate recommendations for the amount and types of sequencing data necessary to optimize the recovery of single chromosomes from bacterial sequencing projects do not exist. Broad estimates for coverage depths needed to recover complete bacterial genomes are present in the literature, but required sequencing depths across bacterial and archaeal phylogenies needed for high-quality assembly are not known. Additionally, correlations between genomic complexity and expected quality of assembly have not been properly defined. Furthermore, the capabilities of multiplexing (sequencing more than one sample simultaneously on one flow cell) with long-read sequencing platforms in order to recover complete bacterial chromosomes are poorly …

Systems To Attract And Feed Pollinators In Warm-Season Lawns, Michelle Wisdom

Graduate Theses and Dissertations

Pollinating insects are responsible for the production of many agricultural crops and they require floral resources to fulfill their life-cycle. Ideally, pollinating insects will encounter a diversity of floral resources across their entire season of activity, and those floral resources can include both herbaceous and woody plant species. Managed turfgrass areas have been identified as potential locations for creating pollinator-friendly habitats. In the transition zone, where both warm- and cool-season turfgrass species are present, the persistence of herbaceous plants in warm-season turfgrasses such as bermudagrass (Cynodon spp.) and buffalograss (Buchloe dactyloides), may be affected not only by the competitive nature …

Assessing Efficiency In The Pharmaceutical Sector Of Nigeria, Efayena O. Obukohwo, Enoh H. Olele, Patricia N. Buzugbe

CBN Journal of Applied Statistics (JAS)

The study analyses, empirically, the efficiency of the Pharmaceutical sector in Nigeria. Employing a balanced panel of 20 pharmaceutical firms between 2012 and 2016, the paper uses a non-parametric technique (Data Envelopment Analysis) to analyze the firms’ efficiency under the constant returns to scale (CRS) and variable returns to scale (VRS) assumptions. The results obtained shows inefficiency in the pharmaceutical sector as it operates under a decreasing return to scale. This calls for an appropriate policy mix to stimulate the efficiency of the pharmaceutical sector in Nigeria by enhancing research and development (R&D) as ell as regulations within the sector.

Exploratory Study Of A School-Based Refugee Mental Health Project, Anne Marie Boose

Student Work

Immigrant and refugee youth are in our schools in greater numbers than ever. Educators are required to educate all students to the same standards, even though they have often been exposed to violence and other difficulties throughout their journey to a new home. Many continue to face many on-going barriers as they arrive in our schools. Although this population is resilient and has many strengths, for some the burden of trauma is overwhelming, threatening their mental health and school performance. A small percentage of these students are unable to cope and make devastating, life-ending decisions. Schools with large numbers of …

Preparing An Effective Poster Presentation, Christopher N. Jacques

The Prairie Naturalist

Greetings GPNSS members! By the time you read this editorial, many of have been experiencing the fury unleashed by ‘Old Man Winter’ and may find yourself counting the days until warmer spring temperatures return once again to the Great Plains. Until then, just a couple more months of bitter cold temperatures, strong winds, and blowing and drifting snow. But not to worry, winter also provides the cold weather enthusiasts among us a chance to enjoy a range of outdoor recreational opportunities, a chance to reflect on the previous year in review, exciting professional and personal opportunities ushered in by the …

Metabolic Gas Emissions From Prairie Soil Containing Foraging Termites, Charles E. Konemann, B.M. Kard, Tom A. Royer, Mark E. Payton

The Prairie Naturalist

Differences in subterranean termite metabolic gas emissions are readily observed in laboratory experiments. However, in natural field ecosystems a primary difficulty in measuring subterranean termite gases is non-homogeneous distribution of foraging termites in soil. Our field experiment was designed to aggregate foragers of the 'eastern subterranean termite', Reticulitermes flavipes Kollar (EST), in one of four flux chamber configurations placed on a tallgrass prairie throughout 2014 and 2015. We used differently configured flux chambers to measure metabolic gas emissions from soil with or without foraging termites on The Joseph H. Williams Tallgrass Prairie Preserve (TGPP) in north-central Oklahoma. Foraging termitesaggregated in …

The Prairie Naturalist: The Journal Of The Great Plains Natural Science Society Volume 50 No. 2

The Prairie Naturalist

TABLE OF CONTENTS

43 EDITOR’S NOTE

RESEARCH ARTICLES

46 Metabolic Gas Emissions from Prairie Soil Containing Foraging Termites Charles E. Konemann, B. M. Kard, Tom A. Royer, and Mark. E. Payton

59 Comparison of northern flying and red squirrel phylogenies with focus on the insular United States Alyssa M. Kiesow, and Hugh B. Britten

NOTES

70 Two-Headed White-Tailed Deer Fetus

72 Red-Bellied Snake (Storeria occipitomacilata) Copulation in South Dakota

74 New Breeding Record and Location for Wilson's Phalarope (Phalaropus tricolor) in the Nebraska Great Plains, USA

BOOK REVIEWS

76 Sedges and Rushes of Minnesota: The Complete Guide to Species Identification. …

Adequate Use Of Technology And Effects On Young Children, Jackie Breuer

Master's Theses & Capstone Projects

This paper reviews literature about technology use in young children and the positive effects it may have, along with consequences and recommendations. Young children are able to access technology easily and use it for many reasons. Using technology responsibly and for educational will help maintain young children’s health and safety. Supervision and interaction is key when young children use technology. Young children spend a lot of time on technology which can have adverse effects such as physical health issues, mental health issues and social interaction problems. When children use it for educational purposes the work should be monitored and the …

The Impact Of Project-Based Learning In The Secondary Classroom, Alan Kies

Master's Theses & Capstone Projects

How to increase student engagement in the classroom and prepare the students for the future are questions that teachers have been pondering for decades. Over the years, many different student-centered teaching methods have been introduced to varying degrees of success. This literature review investigates one of the student-centered teaching methods that has been shown to have positive benefits for students in secondary classrooms, project-based learning (PBL). In a PBL unit or lesson, the students are investigating a real-world question or problem and then presenting their learning in a final project. Through the creation of the final product, the students will …

Annual Report Fy 2018, Office Of Scholarly Communications, University Of Nebraska–Lincoln Libraries, Paul Royster, Sue Ann Gardner, Margaret Mering, Linnea Fredrickson

Copyright, Fair Use, Scholarly Communication, etc.

Highlights include hosting the ACRL Scholarly Communications Roadshow, joining the National Library of Medicine’s PubMed Link-out program, the Gerald Hodges Intellectual Freedom Chapter Relations Award from the American Library Association, institutional repository deposits and traffic, journals published, Zea Books published, conferences, presentations, publications, staffing notes, and student workers.

Halted Innovation: The Expansion Of Federal Jurisdiction Over Medicine And The Human Body, Myrisha S. Lewis

Faculty Publications

Modern medical innovations are blurring the line between medical practice and medical devices and drugs. Historically, many techniques have been developed in medicine, without any interference from the federal government, as medical practice is (and has historically been) an area of state jurisdiction. Over the past two decades, however, the U.S. Food and Drug Administration (FDA) has been exerting jurisdiction over the human body and the practice of medicine by targeting new medical techniques for oversight and subjecting the continued use of those treatments to onerous and legally questionable regulatory requirements that hinder the use of those treatments in practice. …

Coca-Cola’S Future Growth Strategy: Diversification?, Arshia Alahi, Erin Bass

Theses/Capstones/Creative Projects

This case study is based on Coca-Cola Co.’s growth strategy. It provides the audience with the company background of various acquisitions, the Carbonated Soft Drink(CSD) industry analysis in which Coca-Cola belongs in, the competitive landscape, threats and opportunities facing the CSD industry, along with internal company analysis of Coca-Cola Co. Which includes, the current state of the company, its current growth strategy and the future of Coca-Cola Co. With the information provided, the audience (students) will be able to recommend various strategies that can help Coca-Cola Co. grow in the future.

On Pediatric Vaccines And Catholic Social Teaching, Conor M. Kelly

Theology Faculty Research and Publications

Determining whether, and when, to get one's children vaccinated has become an increasingly controversial decision, often leaving parents fearful of making the “wrong” choice. Part of the challenge stems from the fact that what is rationally optimal for an individual is inherently at odds with the best outcome for the community, meaning that if everyone acted out of self-interest with respect to pediatric vaccines, communal health would suffer significantly. Given these tensions, the issue of pediatric vaccines benefits greatly from the nuanced assessment of Catholic social teaching. Specifically, the Pontifical Council for Justice and Peace's “four permanent principles” of human …

Officer Perceptions On Armed Campuses, Paul Perry

Electronic Theses and Dissertations

This research was intended to investigate the perceptions of firearm policies and the views held by campus security personnel regarding student or teacher carry on campus. The purpose of the interviews was to investigate campus security officer’s perceptions and how they differ based upon individual belief systems. The goal, therefore, was to understand how their perspectives on campus carry could impact interactions with students and faculty. Exploring a representative sample of current firearm policies, both on and off campus, established a framework that exposed the opinions of campus security personnel and gave some insight into the potential impact that might …

The Effects Of Sexual Victimization On College Women, Bailie Light

Electronic Theses and Dissertations

This thesis analyzed the effects of sexual victimization among college women. Previous research has found that victimization has several negative effects. This thesis was designed to add to this literature by addressing how sexual victimization effects both behavior and academic performance. Results indicated that there was a significant relationship between sexual victimization and behavior changes, the type of victimization experienced had a different impact on the victim based on the type of victimization they experienced, and that academic performance was significantly affected by sexual victimization.

Use Of A Daily Behavior Report Card And Response Dependent Fading To Increase And Maintain Academic Engagement In An Elementary Student With Developmental Delay, Ziyad Alrumayh

Electronic Theses and Dissertations

The initial and maintenance effects of a Daily Behavior Report Card (DBRC) intervention and fading procedure on Academic Engaged Time (AET) of a 6-year-old boy with Developmental Delay and Attention Deficits were evaluated with a reversal design. Following an initial baseline, the DBRC was implemented and then completely removed followed by reapplication of the DBRC. Subsequently, the report card was gradually reduced in the frequency of its use from very daily to every other day. Increased AET reliably varied with the application and then removal of the DBRC. Whereas complete removal of the DBRC resulted in substantial decreases in AET, …

The Ecology Of Fecal Indicators, Dennis A. Gilfillan

Electronic Theses and Dissertations

Animal and human wastes introduce pathogens into rivers and streams, creating human health and economic burdens. While direct monitoring for pathogens is possible, it is impractical due to the sporadic distribution of pathogens, cost to identify, and health risks to laboratory workers. To overcome these issues, fecal indicator organisms are used to estimate the presence of pathogens. Although fecal indicators generally protect public health, they fall short in their utility because of difficulties in public health risk characterization, inconsistent correlations with pathogens, weak source identification, and their potential to persist in environments with no point sources of fecal pollution. This …

December 2018 Commencement Program, Bowling Green State University

Commencement Programs

No abstract provided.

Co-Infection Of Zika And Dengue Virus In Aedes Aegypti And Aedes Albopictus Mosquitoes, Felicia Vazquez

Theses and Dissertations

The term co-infection describes an event when multiple pathogens infect a single host. For vector-borne diseases, a vector may become co-infected by feeding either on a single host that has multiple pathogens or feeding multiple hosts, each of which may be infected. Co-infection in non-vector hosts has been shown to influence immune response and eventual outcome of disease, and is likely to have a similar impact on vector species. With multiple vector-borne diseases circulating in South Texas, the potential for co-infection exists. We examined when mosquitoes are infected with one virus and subsequently infected with another. We hypothesized that the …

Development Of A Self-Powered Structural Health Monitoring System For Transportation Infrastructure, Aydin Karsilaya, Samer Dessouky, Athanassios Papagiannakis

Publications

Roadways and bridges play an important role in the economic and social health of society by connecting commerce and people. Economic growth and population expansion pose considerable burden on the aging infrastructure (i.e., pavements and bridges). There is a pressing need to develop structural health monitoring (SHM) technologies capable of collecting infrastructure utilization data. Doing so inexpensively with self-powered systems will revolutionize infrastructure monitoring technology, and will improve decision making enabling roadway and bridge preservation. In this study, a self-powered battery-less structural health monitoring (SHM) system was developed. It is powered by a thermal energy harvester equipped with thermoelectric generators …

Recruiting, Retaining, And Promoting For Careers At Transportation Agencies, Christofer Harper, Susan Bogus, Raghava Kommalapati, Doeun Choe

Publications

State transportation agencies currently face complex challenges in recruiting and retaining the workforce necessary to function effectively. The situation exacerbates due to the number of employees from different generations that have to coexist with varying values, expectations, and principles. These agencies are primarily comprised of two generational groups: the baby-boomers, who are approaching retirement and occupy many managerial positions; and the millennials, who are demonstrating their interest in technology and demanding dynamism in their careers. This multiplicity of interest represents a challenge for human resources (HR) in addressing workforce issues and providing the necessary means to recruit and retain qualified …