Digital Commons Network^™

Performance And Sustainability Benefits Of Concrete Containing Portland-Limestone Cement, Jameson Davis Shannon

Theses and Dissertations

Sustainability and reduction of environmental impacts have continued to increase in importance in the concrete marketplace. Portland-limestone cement (PLC) has been shown to reduce total energy consumed and CO2 produced during the cement manufacturing process. This material may also have the ability to benefit concrete properties, such as compressive strength and time of set. Other concrete performance measures of potential interest evaluated in this study include durability and modulus of elasticity. In this dissertation PLC was evaluated for its ability to further increase concrete sustainability, while at the same time providing advantageous properties. This study’s focus was to show that …

Direct Digital Engagement Of Patients And Democratizing Health Care, Dov Greenbaum

Santa Clara High Technology Law Journal

Direct Digital Engagement of Patients and Democratizing Health Care

Fort Hays State University Tiger Weekly, December 11, 2015, University Relations

Tiger Weekly Newsletters

No abstract provided.

Longevity Of Mineral Supplements Within The Soil And Associated Use By White-Tailed Deer, Brian C. Peterson, Keith D. Koupal, Andrew K. Schissel, Cody M. Siegel

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Humans have baited wildlife such as white-tailed deer (Odocoileus virginianus) for generations with the primary purpose of increasing hunting harvest success. Baiting regulation changes are often considered by state management agencies as they pertain to hunting opportunity, fair chase, and disease risk. Cervids require a variety of minerals to supplement biological processes, especially sodium (Na), calcium (Ca), and phosphorus (P). We developed artificial mineral supplement sites set in front of trail cameras to monitor deer use. Pooled soil samples were collected at mineral sites and compared to the surrounding area to determine the longevity of elevated minerals levels …

Competing In The International Collegiate Sales Competition, Christina Cook

Honors Theses

The following report aims to analyze the process that is involved in competing in the International Collegiate Sales Competition. There will be an overview of the selection process and the competition itself and an analysis of the overall performance at the competition. In addition, there will also be an overview of lessons learned by competing along with general suggestions to future competitors and competition coordinators.

Before examining the details of the competition, this thesis will address the Sales and Business Marketing program at Western Michigan University. In addition, there will be models referenced within Western Michigan University’s sales program that …

Is The Zebrafish Zombie Mutant Caused By A Mutation In Cdc20?, Peyton Johnston

Honors Theses

The zombie mutant was identified as an early arrest mutant, stopping in development around the 10-somite stage (14 hours of development). Further inspection revealed that this mutant was a cell cycle mutant and cells in the mutant arrest during metaphase as early as the 5-somite stage (11.6 hours of development). A similar phenotype is seen in the Drosophila melanogaster cell cycle gene fizzy, known to be to be a homolog of the Saccharomyces cerevisiae gene, cell division cycle 20 (cdc20). CDC20 is an activator protein of the anaphase promoting complex/cyclosome (APC/C), an ubiquitin E3 ligase that is …

Recommendations For The Development Of New Hospital Guidelines Due To The Effects Of Antibiotics On Clostridium Difficile Colitis, Megan Kohsel

Honors Theses

Clostridium difficile colitis is an infection that causes inflammation of the colon and diarrhea. This can even lead to death in some cases. The incidence of this infection and its overall effects have been on the rise throughout the last twenty years as antibiotics have been prescribed more frequently. Therefore, it is necessary that the rate of C. difficile infection is lowered by improved guidelines for hospitals, so that fewer people are infected and also that fewer antibiotics are prescribed to avoid the infection with C. difficle.

Experiential Avoidance Post-Trauma: Investigating Predictors Of Traumatic Stress And Problematic Behavior., Elise Trim

Honors Theses

Experiential avoidance (EA) is the unwillingness to remain in contact with distressing thoughts, feelings, memories, and other private experiences (Hayes et al., 2004; Hayes, Strosahl, & Wilson, 1999). Although the use of EA may lead to immediate reductions in distress, prolonged use can result in problem behaviors such as substance misuse (Hayes, Wilson, Gifford, Follette, & Strosahl, 1996). Although a strong temporal relationship has yet to be established, findings suggest a possibility that EA could be a mechanism by which posttraumatic stress disorder (PTSD) symptoms are developed and maintained (Krause, Mendelson, & Lynch, 2003; Rosenthal, Polusny, & Follette, 2006; Dvorak, …

Parentification, Alicia Wayne

Honors Theses

The phenomena of Parentification. Parentification is best outlined by Boszormenyi-Nagy & Spark (1973), as a family process in which children or adolescents assume adult responsibilities and/or parental roles that may be developmentally inappropriate. There has been much research done on the topic of Parentification and the effects of the psychopathology on the individual. (e.g. substance abuse, depression, self-esteem, recidivism, anxiety, etc.) Although some research has been done on birth order and/or family structure and how it correlates to parentification, no published research was found on parentification and its repercussions or ramifications for the youngest sibling(s) (i.e. those adolescent’s that were …

Religious Tourism And Economic Growth In Oil-Rich Countries: Evidence From Saudi Arabia, Ahmed Alodadi, James Benhin

Plymouth Business School

Key studies have identified the need to diversify the Kingdom of Saudi Arabia economy beyond its heavily oil-based status if it is to attain long-term sustainable growth. Tourism, in particular religious tourism, has been recognized as one key non-tradable sector that could promote this growth. This article applies a time-series approach to examine the impact of the tourism industry on the economic prosperity of the Kingdom between 1970 and 2011. The results show that tourism only plays a minor role in improving economic growth when the economy as a whole is taken into consideration. However, when isolating the non-oil sectors, …

Characterization Of The Ability Of Yeast Probiotics And Paraprobiotics To Directly Interact With Gram-Positive And Gram-Negative Bacteria, Gabriel Alviola Posadas

Theses and Dissertations

Yeast probiotics and paraprobiotics, live and inactivated yeast cells, respectively, improve health and performance of livestock by stabilizing the intestinal microbial community. They have also been used for infection prevention and treatment. Despite much research already conducted, the mechanism of direct antagonism, or adhesion of bacteria to the probiotic/paraprobiotic, is under characterized. Additionally, it is unknown which probiotic/paraprobiotic is optimal to use for specific infections. The interactions between the yeast and certain pathogens were analyzed qualitatively with scanning electron microscopy (SEM) and quantitatively with membrane filtration assays. Gram-positive bacteria were found to exhibit specificity under SEM. Through membrane filtration, Listeria …

Cheating Within Online Assessments: A Comparison Of Cheating Behaviors In Proctored And Unproctored Environment, Hannah Street Owens

Theses and Dissertations

The purpose of this study was to describe the frequencies and types of cheating behaviors occurring within proctored and unproctored testing environments for students enrolled in online courses and taking assessments through an online format. In addition, this study sought to examine relationships between demographic variables of gender, age, GPA, discipline of study, undergraduate/graduate status and knowledge of the institutional honor code and online cheating behaviors for students who had taken online assessments through proctored methods. Participants in this study included students enrolled as distance learning campus students who took online courses and online assessments through a large, 4-year, public, …

Cold In-Place Recycling Characterization Framework For Single Or Multiple Component Binder Systems, Ben C. Cox

Theses and Dissertations

Cold in-place recycling (CIR) is a pavement rehabilitation technique which has gained momentum in recent years. This momentum is due partly to its economic and sustainability characteristics, which has led to CIR market expansion. When pavement network deterioration is considered alongside increasing material costs, it is not beyond reason to expect demands on CIR to continue to increase. Historically, single component binder (SCB) systems, those with one stabilization binder (or two if the secondary binder dosage is 1% or less), have dominated the CIR market and could be considered the general state of practice. Common stabilization binders are either bituminous …

Conserving The Mississippi Gopher Frog (Lithobates Sevosa) Through The Use Of Assisted Reproductive Technologies, Katherine Michelle Graham

Theses and Dissertations

The Mississippi gopher frog (MGF, Lithobates sevosa) is a critically endangered amphibian which requires the use of assisted reproductive technologies (ART) to successfully reproduce in captivity. Several challenges to successfully breeding MGFs were investigated to improve reproduction in this species. Accurate identification of biological sex is a necessary first step to reproducing species, thus several non-invasive techniques for sex identification were compared in the weakly dimorphic MGF. Reliably obtaining eggs from female MGFs has also proved difficult, therefore, four exogenous hormone therapies were compared for their success to induce ovulation. Ultrasound imaging was used alongside hormone treatments to improve understanding …

Development Of Intermediate And High Strain Rate Experimentation And Material Modeling Of Viscoplastic Metals, Wilburn Ray Whittington

Theses and Dissertations

This work presents a combined theoretical-experimental study of strain rate behavior in metals. The method is to experimentally calibrate and validate an Internal State Variable (ISV) constitutive model with a wide range of strain rate sensitivity. Therefore a practical apparatus and methodology for performing highly sought-after intermediate strain rate experimentation was created. For the first time in reported literature, the structure-property relations of Rolled Homogeneous Armor is quantified at the microscale and modeled with varying strain rates, temperatures, and stress states to capture plasticity and damage with a single set of constants that includes intermediate strain rates. A rolled homogeneous …

Doppler Tracking, Christopher Jacob Thomas

Theses and Dissertations

This study addresses the development of a methodology using the Doppler Effect for high-resolution, short-range tracking of small projectiles and vehicles. Minimal impact on the design of the moving object is achieved by incorporating only a transmitter in it and using ground stations for all other components. This is particularly useful for tracking objects such as sports balls that have configurations and materials that are not conducive to housing onboard instrumentation. The methodology developed here uses four or more receivers to monitor a constant frequency signal emitted by the object. Efficient and accurate schemes for filtering the raw signals, determining …

Dual Enrollment And Dual Credit As Predictors Of Community College Graduation, Grade Point Average, And Credit Hour Accumulation, Nathan Ray Oakley

Theses and Dissertations

A growing trend in high schools across the state is the use of dual credit and dual enrollment courses to better prepare high school students for college or the work force. Given the increase in dual credit and dual enrollment participation and the goal of creating a more seamless transition from high school to college, the effectiveness of these programs needs to be researched. The research hypothesis for this study states that students who participate in a dual credit and dual enrollment program during high school are more likely to complete an associate degree within 3 years than students who …

Design And Development Of A Stormwater Policy Decision-Making Tool, Stephanie Joy Sigman

Theses and Dissertations

Municipalities tend to develop their stormwater management policy by examining those of their neighboring communities, chosen out of convenience and perception of similarity rather than a purposeful, directed search. Alternatively, having a policy that is backed by science creates regulations that policy makers can confidently support. To address this issue, the model used in this study incorporates local rainfall and development data to analyze stormwater runoff volumes for various storm events using one year of development data from Chattanooga, Tennessee. The runoff values are used to analyze several policy combinations based on simplified policies, model policies, and customizable policies. Outputs …

An Examination Of The Relationship Of Course Evaluations To Student Retention And Student Success In The Community College Online Classroom, Kimberley Karr Harris

Theses and Dissertations

Online education is continually growing and becoming more widely accepted as an instructional delivery option. Student success, student retention, and course quality continue to be issues in distance education. In order to adequately address the issues of student retention, student success, and course quality, evaluation standards must exist. This study was designed to review evaluation standards for online-course quality in the community college and to explore the results of the usage of the evaluation standards as they related to student retention and success at a local community college. The purpose of this study was to (a) review evaluation standards capable …

An Experimental Investigation Of Crank-Resolved Exhaust Pressure Profiles In A Single Cylinder Research Engine With Emphasis On The Potential Of Harvesting Exhaust Energy, Taylor C. Bohach

Theses and Dissertations

The experiments detailed in this thesis give necessary preliminary information for analyzing the theoretical potential of direct exhaust pulse energy harvesting through expander devices. A detailed review of pertinent literature determined that there has been little specific focus on directly converting exhaust pulse energy into useful power. Crank position resolved exhaust pressure was measured as engine load and speed were varied to quantify their influences. Potential theoretical improvements average a 15.6% increase in overall fuel conversion efficiencies while indicated power can potentially be increased by an average of 14.3% for the operating conditions tested. A potential increase of up to …

Associations Between The Sleep Of Children With Adhd And Their Mothers, Mary Elizabeth Thorne

Theses and Dissertations

This thesis research examines the relation of sleep of children with ADHD and its association with three variables of mother’s sleep. Specifically, we examine specific variables of child sleep including sleep duration, sleep onset, and nightwakings and its relation to mother’s sleep onset, sleep duration, and sleep quality while controlling for child age. After conducting correlations and hierarchal regressions, data analysis indicated a positive association between child sleep onset and mother’s sleep onset, and significant negative relation to mother’s sleep duration and sleep quality. Contrary to expectations, children’s sleep duration and nightwakings were not associated with any of the mother’s …

A Role Of Dispersed Phase Carbon-Length And Small Amphipathic Coemulsifier In Bovine Serum Albumin Stabilized Nanoemulsions Designed To Deliver Bleaching Agent To Decolorized Fresh Whey, Jingyi Yan

Theses and Dissertations

Benzoyl peroxide (BP), used to bleach annatto in cheese whey, was encapsulated within the hydrophobic dispersed phase (phi) of nanoemulsions (NEs) to minimize its degradation and extend its efficacy to minimized usage levels. Three purified, saturated short-chain fatty acids of varying chain lengths: butyric (C4), hexanoic (C6) and octanoic (C8) acid, were chosen as the phi to completely dissolve various concentrations of BP. Stabilization was achieved with different concentrations and combinations of primary emulsifier (E), bovine serum albumin, and coemulsifier (CE), Tween 20. Different ultra-high pressures (UHP) were used to generate a stable NE. The best result was made by …

Energy Cost Optimization For Strongly Stable Multi-Hop Green Cellular Networks, Weixian Liao

Theses and Dissertations

Last decade witnessed the explosive growth in mobile devices and their traffic demand, and hence the significant increase in the energy cost of the cellular service providers. One major component of energy expenditure comes from the operation of base stations. How to reduce energy cost of base stations while satisfying users’ soaring demands has become an imperative yet challenging problem. In this dissertation, we investigate the minimization of the long-term time-averaged expected energy cost while guaranteeing network strong stability. Specifically, considering flow routing, link scheduling, and energy constraints, we formulate a time-coupling stochastic Mixed-Integer Non-Linear Programming (MINLP) problem, which is …

Equipment And Protocols For Quasi-Static And Dynamic Tests Of High-Strength High-Ductility Concrete (Hshdc) And Very-High-Strength Concrete (Vhsc)), Brett Anthony Williams

Theses and Dissertations

This research developed the quasi-static and dynamic equipment and protocols for tests of both Very-High-Strength Concrete (VHSC) and High-Strength High-Ductility Concrete (HSHDC) to predict blast performance. VHSC was developed for high compressive strength (> 200 MPa). Using VHSC as the baseline material, HSHDC was developed and exhibits comparable compressive strength (> 150 MPa) and high tensile ductility (> 3% tensile strain). This research investigated quasi-static material properties including compression, tension, and flexure (third-point and pressure loadings). Additionally, dynamic blast load simulator (shock tube) tests were performed on simply-supported one-way panels in flexure. Subsequently, the material response in flexure was predicted …

Ethernet Over Plastic Optical Fiber For Use In The Control System Network For Automotive Applications, Ryan Nicholas Nazaretian

Theses and Dissertations

Plastic optical fiber (POF) for use in automotive applications is not a new concept and has been used in some vehicles for infotainment media distribution within the Media Oriented Systems Transport protocol. However, the use of POF for the control network’s physical layer is a concept that has not been implemented in automotive applications. Many aspects of a vehicle can be improved by implementing POF as the physical backbone for the control network. Currently, the Controller Area Network (CAN) is used as the primary backbone control network protocol for most automobiles as it is inexpensive and reliable. However, CAN is …

Evaluation Of A Cultural Practice And 2,4-D-Based Herbicide Programs For Glyphosate-Resistant Palmer Amaranth Management, Benjamin Haynes Lawrence

Theses and Dissertations

Glyphosate-resistant Palmer amaranth (Amaranthus palmeri [S.] Wats) is an economically troublesome weed to southeastern United States soybean (Glycine max [L.] Merr.) growers. Palmer amaranth is troublesome due to its evolution of resistance to multiple herbicide modes of action, competiveness, and prolific seed production. Greenhouse studies were conducted at the Delta Research and Extension Center in Stoneville, MS to evaluate different rates of 2,4- dichlorophenoxyacetic acid (2,4-D) for control of Palmer amaranth. Field experiments were conducted at the Delta Research and Extension Center in Stoneville, MS in 2013 and 2014 to evaluate Palmer amaranth emergence using a cultural practice and a …

Evaluation Of Initial Body Weight And Supplementation Levels On Health And Performance Of Newly Received Stocker Calves, William Corey Wilkins

Theses and Dissertations

These study objectives were to evaluate the effects of: initial bodyweight, energy supplementation, distance and days traveled and hair coat shedding on performance and health. Crossbred heifers (n=120) were purchased as either lightweight (136 kg) or heavyweight (226 kg) calves. Factors affecting morbidity and growth were tested using Poisson or linear regression (PROC GLIMMIX), with a correlation structure defining clustering by pen. Incidence density was 53.7/103 calf-days and 19.0/103 calf-days for light and heavy initial BW, respectively. Lightweight calves were 2.8 times more likely to be treated for BRD (p=0.02) and each increase in hair shed score increased risk for …

Examination Of The Effects Of Vitamin D Supplementation On The In Vitro Calcification Of Vascular Smooth Muscle Cells, Kevin Andrew Bennett

Theses and Dissertations

Medial calcification refers to mineral deposition in the middle layer of arteries. This mineralization is common in chronic kidney disease patients and causes an increased chance of cardiovascular complications. Calcitriol, the active form of vitamin D, is often administered to these patients to treat an associated condition, secondary hyperparathyroidism. Unfortunately, calcitriol treatment may promote vascular calcification due to increasing serum calcium and phosphate. We examined the effects of calcitriol supplementation on vascular smooth muscle cell (VSMC) calcification, through atomic absorption, scanning electron microscopy, and western blot analysis. Additionally, we examined the effects of the combinations of calcitriol, fibroblast growth factor …

Examining The Relationships Between Violent Media Programming, Aggression And Prosocial Behaviors Among Black College Students, Jamie Michelle Williams

Theses and Dissertations

The purpose of this study was to examine the relationship between violent media programming, aggression and prosocial behaviors among Black college students. The study included 108 Black college students from a historically Black college/university on the East Coast. The researcher evaluated the participants’ aggression using Buss & Warren’s (2000) Aggression Questionnaire and evaluated the participants’ prosocial behaviors using Penner’s (1995) prosocial personality battery. The researcher then used an independent samples t-test to analyze the data and test the hypothesis that a relationship between the variables exists. Furthermore, the researcher employed discriminant analysis to determine if group membership could be predicted, …

Interactive Whiteboards And Tpack For Technology-Enhanced Learning: Secondary Mathematics Teachers Barriers, Beliefs, And Support Needs In One Rural School District, Shelita Mccadney Brown

Theses and Dissertations

Low-income students and blacks make up nearly half of public school students, and on nearly every indicator of educational access, particularly technology, these students have less access than white affluent students (Darling-Hammond, Zielezinski, and Goldman, 2014). The National Center for Education Statistics (2005) reported that teacher quality and missed opportunities to learn accounted for 93% of African Americans, and 87% of Hispanics performing below proficiency in mathematics. Students that do not master mathematics standards by the end of compulsory education are less likely to complete general mathematics courses in upper secondary school and beyond successfully (Levpušček, Zupančič, & Sočan, 2013). …