Digital Commons Network^™

Characterization Of Kndy Neuronal Activity In Gilts: Distribution And Effect Of A Progestin, Ashley Nicollette Lindo

Graduate Theses, Dissertations, and Problem Reports (ETD)

Puberty is a process that incorporates a large array of both external factors and internal signals. The endocrinology of puberty has been studied in a number of mammalian species and typically depends upon an increase in hypothalamic secretion of gonadotropin releasing hormone (GnRH). Neural inputs regulating GnRH secretion during the pubertal process are not completely understood. In the past decade, attention has focused on the role for a particular set of neurons located in the arcuate nucleus (ARC) of the hypothalamus. They have been named KNDy neurons because they coexpress kisspeptin, neurokinin B (NKB) and dynorphin and have been shown …

Laser And 3-Dimensional Printers: Characterizing Emissions And Occupational Exposures, Alyson R. Johnson

Graduate Theses, Dissertations, and Problem Reports (ETD)

Introduction: Toxicology and epidemiology studies have observed an association between ultrafine particles (UFPs) and respiratory, cardiovascular, and neurological health effects. While there is a paucity of data in the literature on the potential toxicity and health effects from indoor UFP exposure, more exposure assessment studies and research evaluating the efficacy of controls is merited. An increased demand for efficiency, productivity, and manufacturing has led to conception of laser and 3- dimmensional (3-D) printers in various indoor workplaces. The indoor environment is one of the most important determinants of personal exposure. Introducing laser and 3-D printers to indoor workplaces, introduces a …

Perceptions Of Stress: Employee Participation In A Yoga Class, Rosemarie Lee

Walden Dissertations and Doctoral Studies

Abstract

Employees experience workplace stress that can affect their health resulting in chronic diseases such as diabetes, stress, hypertension, and cardiovascular diseases. Stress also contributes to staff presentism, absenteeism, and high turnover rate. The employee wellness program (EWP) yoga class at a metropolitan teaching hospital has not been evaluated for its effectiveness in employee stress reduction and improvement in employee health. The practice focus question for this project explored employees' perception of the impact of a metropolitan teaching hospital's EWP yoga class on their stress reduction and health promotion activities. The theoretical framework for this project is Lazarus' transactional model …

Analysis Of Membrane Transporter Systems Expressed During Symbiotic Nitrogen Fixation In The Model Legume Medicago Truncatula, Christina Laureen Wyman

Graduate Theses, Dissertations, and Problem Reports (ETD)

No abstract provided.

An Exploratory Case Study: Persistence And Retention Of Students In An Alternative High School, Lametrica Andrews

Walden Dissertations and Doctoral Studies

Students with emotional behavioral disorders (EBD) are at greater risk for dropping out of high school than other students, and are likely to experience fewer employment options and more societal marginalization. Alternative schools have been viewed as a last chance and best option for educating many students with EBD who have not actually been diagnosed. The purpose of this qualitative case study was to explore persistence and retention in the alternative school setting for students who may or may not have been diagnosed with EBD. Students in this study will be referred to as EBD. Although they have not been …

Childhood Lead Exposure And Adult Verbal Comprehension And Perceptual Reasoning, Carrie A. Wonderly

Walden Dissertations and Doctoral Studies

Lead neurotoxicity is considered a problem in young children and the long-term effects of lead exposure on them have yet to be determined. Studies have been completed to determine how lead exposure has affected children through their most important developmental stages. However, there is a lack of research to uncover any long-term effects lead may have as children enter adulthood. The purpose of this study was to determine long-term effects of lead exposure on IQ. The theoretical foundation for this study is the Cattell Horn Carroll theory of intelligence, which is based on fluid (novel experiences) and crystallized (previous experiences) …

Racial Ideologies And Ethnoracial Social Inclusion Policy In Mexico And Peru, Bruce Abby

Honors Theses

My study examines the covariation of racial ideologies and ethnoracial social inclusion policies with ethnoracial identity in Peru and Mexico. I begin by studying the history and evolution of racial ideologies in Latin America generally and then in Mexico and Peru more specifically. I use this research to help guide and inform my bivariate tabular analysis of data collected by the Project on Ethnicity and Race in Latin America (PERLA). From the PERLA survey questionnaires for Mexico and Peru, I choose questions pertaining to ethnoracial identity and attitudes towards specific social inclusion policies and racial ideologies. I measure the covariation …

Psychological Consequences Of The Boko Haram Insurgency For Nigerian Children, Paul Adebayo Adepelumi

Walden Dissertations and Doctoral Studies

Studies have examined the causes and impacts of terrorism in Nigeria; however, no known research has documented the psychological impacts of witnessing ongoing Boko Haram terrorist violence based on the lived experiences of Nigerian children. The purpose of this qualitative phenomenological study was to examine the psychological consequences of the Boko Haram insurgency based on the lived experience of Nigerian children exposed to terrorism in Nigeria. The study's theoretical framework combined Piaget's theory of cognitive development and punctuated equilibrium theory. The central research question examined the adverse psychological effects of the Boko Haram insurgency for Nigerian children residing in Nigeria. …

Addressing Spiritual Care Needs In Primary Care, Olayinka Akerele-Olufidipe

Walden Dissertations and Doctoral Studies

This DNP project focused on the spiritual aspects of care that are often neglected in the outpatient setting. Most patients value their spiritual health and believe that it is just as important as their mental and physical health. The purpose of this project was to improve the overall spiritual care provided to patients, their families, and/or caregivers in times when they were experiencing spiritual distress. This quality improvement (QI) project was designed to determine whether embedding a chaplain in an outpatient clinic instead of providing a pamphlet about chaplain services increases patient satisfaction. Secondary analysis of the data in this …

The Impact Of Lemongrass, Oregano, And Thyme Essential Oils On Candida Albicans' Virulence Factors, Jennifer Marie Eddins

Walden Dissertations and Doctoral Studies

Increased systemic infections and growing resistance of Candida species in immunosuppressed people have prompted research for additional treatment options. The purpose of this quantitative study was to investigate the potential of lemongrass, oregano, and thyme essential oils tested individually, combined, and combined with the antifungal agents fluconazole and caspofungin to kill Candida albicans isolates in a controlled laboratory setting. This study was grounded on the theoretical concepts of the epidemiologic triangle model. The experimental data collected were used to investigate risk factors related to age, gender, race, and comorbidities. Kill rates of lemongrass, oregano, and thyme essential oils individually and …

Factors Associated With Menthol Cigarettes Smoking Among Youths Ages 12 To 19, Eniye Emmanuel Eguae

Walden Dissertations and Doctoral Studies

Menthol is added to cigarettes to make smoking more convenient. Menthol is considered a contributing factor that makes smoking appealing to youths and their continuous smoking initiation, which progresses to regular cigarette smoking and addiction, especially among youths ages 12 to 19. Menthol encourages approximately 4,000 youths to experiment with smoking daily in the United States, of which approximately 1,000 become active smokers. Not enough is known regarding the influence of menthol on youth smoking initiation/smoking behavior. A quantitative analysis of data from the 2014 National Youth Tobacco Survey (NYTS) was used to explore the association between age, race/ethnicity, gender, …

Community College Transitioning Experiences Of Dual Enrollment Students, Sandra Lucille Fuline

Walden Dissertations and Doctoral Studies

Dual enrollment transitioning experiences of students are poorly understood, leaving higher education stakeholders without the proper information to smooth the transitioning process and keep students in college. This basic qualitative study using interviews explored how 10 dual enrollment students described their transitioning experiences from high school to community college by investigating their motivations, ability to acknowledge self-efficacy, and understanding of social interactions using Badura's self-efficacy model and Keller's motivational theory and the attention, relevance, confidence, and satisfaction model. Data were analyzed through an open coding method to categorize themes and patterns as well as discrepant information. Key findings indicated that …

Als-Associated Mutation Sod1g93a Leads To Abnormal Mitochondrial Dynamics In Osteocytes, Huan Wang, Jianxun Yi, Xuejun Li, Yajuan Xiao, Kamal Dhakal, Jingsong Zhou

Faculty and Staff Publications

While the death of motor neuron is a pathological hallmark of amyotrophic lateral sclerosis (ALS), defects in other cell types or organs may also actively contribute to ALS disease progression. ALS patients experience progressive skeletal muscle wasting that may not only exacerbate neuronal degeneration, but likely has a significant impact on bone function. In our previous published study, we have discovered severe bone loss in an ALS mouse model with overexpression of ALS-associated mutation SOD1G93A (G93A). Here we further provide a mechanistic understanding of the bone loss in ALS animal and cellular models. Combining mitochondrial fluorescent indicators and confocal live …

Training Selected Churches In The Iowa-Missouri Conference Of Seventh-Day Adventists To Minister To Cohabiting Couples, Jared S. Miller

Doctor of Ministry Projects

Problem

The number of cohabiting couples has dramatically risen over the last several decades. Even a significant amount of Seventh-day Adventist Church members, both young and old, have chosen to live together apart from a committed marriage. Living together without the covenant of marriage comes with many risks and many negative effects on both adults and children. With the prevalence of cohabitation increasing, the church is faced with a new ministry challenge and opportunity. Churches need to be educated about the biblical theology of sexual intimacy and the dangers and damage that come with cohabitation. Furthermore, churches need biblical strategies …

Improving The Lifestyle Of Andrews Korean Seventh-Day Adventist Church Members, Myung Do Park

Doctor of Ministry Projects

Problem

The Andrews Korean Seventh-day Adventist church in Berrien Springs, Michigan has holistic lifestyle problems that are on the rise. Church members are experiencing health issues such as cancer, high blood pressure, diabetes, osteoporosis, and insomnia. In observing dietary patterns, it was noticed that some of our members do not bother to ascertain the content of the food being eaten. Other members have express the desire to learn about a healthy lifestyle. Purposeful attention to this need of the church is necessary. As a church community comprised of mostly pastors, university students and their families it is time to advocate …

The Grid And The Grouse: Cooperative Federal-State Conservation Planning In The Ages Of Obama And Trump, Bret Birdsong

FIU Law Review

No abstract provided.

A Bastard By Any Other Name: A Requiem For The End Of Disproportionate Treatment Toward Out Of Wedlock Children In Florida’S Probate System, Gregg Strock

FIU Law Review

No abstract provided.

Regulatory Bundling, Jennifer Nou, Edward H. Stiglitz

Coase-Sandor Institute for Law & Economics Research Paper Series

Regulatory bundling is the aggregation or disaggregation of legislative rules by administrative agencies. Agencies, in other words, can bundle what would otherwise be multiple rules into just one rulemaking. Conversely, they can split one rule into several. This observation parallels other recent work on how agencies can aggregate adjudications and enforcement actions but now focuses on legislative rules, the most consequential form of agency action. The topic is timely in light of a recent executive order directing agencies to repeal two regulations for every new one promulgated. Agencies now have a greater incentive to pack regulatory provisions together for every …

Twenty Years Of Spayvac® Research: Potential Implications For Regulating Feral Horse And Burro Populations In The United States, Ursula S. Bechert, Mark A. Fraker

Human–Wildlife Interactions

There are currently >75,000 feral horses (Equus ferus caballus) and burros (E. asinus ) on U.S. public lands, yet the Appropriate Management Level (AML) is set at just under 27,000. Wildlife managers, conservation biologists, and livestock ranchers are concerned about the impacts that these free-ranging horses have on shared rangelands. Immunocontraceptive vaccines may have the greatest potential to regulate horse population numbers once AML is reached; however, the vaccine must have multi-year efficacy to be both technically feasible and cost-effective. Immunocontraception based on porcine zona pellucida (PZP)-specific antigens is highly tissue-specific, targeting the ova, and blocking sperm binding through antibody …

Livestock Depredation By Bengal Tigers At Fringe Areas Of Kaziranga Tiger Reserve, Assam, India: Implications For Large Carnivore Conservation, Jimmy Borah, Pranab Jyoti Bora, Amit Sharma, Soumen Dey, Anupam Sarmah, Niranjan Kumar Vasu, Nadisha Sidhu

Human–Wildlife Interactions

Bengal tigers (Panthera tigris) have cohabited with humans in India for centuries. However, with increasing human populations, human-tiger conflicts (HTC) have increased. Impacts of such conflicts are loss of human life, livestock depredations and retaliatory killings of tigers. Considering that Bengal tiger populations are in decline throughout their range, accurate information regarding the magnitude of the impacts of HTC is needed for tiger conservation. We analysed livestock depredation data collected over three years (April 2008 through March 2011) from villages near the Kaziranga Tiger Reserve (KTR) to determine impacts of HTC. During the study period, we documented 518 …

Engaging People In Nature Stewardship Through Master Naturalist Programs, Mark Larese-Casanova, Michelle Prysby

Human–Wildlife Interactions

Master Naturalist programs across the country have reconnected Americans with nature for >20 years. Research suggests that reconnecting humans with nature benefits personal health and wellness, educates stakeholders about the importance of conservation, and enhances individual participation in stewardship efforts. Nationally, the Alliance of Natural Resource Outreach and Service Programs coordinates and supports Master Naturalist programs through facilitating collaboration and sharing of resources, as well as organizing an annual conference. We explore the Virginia Master Naturalist and Utah Master Naturalist programs as 2 examples of different, but highly effective, statewide programs to highlight the diversity of Master Naturalist programs. The …

Managing Human-Habituated Bears To Enhance Survival, Habitat Effectiveness, And Public Viewing, Kerry A. Gunther, Katharine R. Wilmot, Steven L. Cain, Travis C. Wyman, Eric G. Reinertson, Amanda M. Bramblett

Human–Wildlife Interactions

The negative impacts on bears (Ursus spp.) from human activities associated with roads and developments are well documented. These impacts include displacement of bears from high-quality foods and habitats, diminished habitat effectiveness, and reduced survival rates. Additionally, increased public visitations to national parks accompanied with benign encounters with bears along park roads have caused more bears to habituate to the presence of people. In some contexts, habituation can predispose bears to being exposed to and rewarded by anthropogenic foods, which can also lower survival rates. The managers and staff of Yellowstone National Park located in Wyoming, Montana, and Idaho, …

Review: Living With Bears Handbook, Lucian R. Mcdonald

Human–Wildlife Interactions

No abstract provided.

Analysis Of Fiber Network Architecture In Blood Vessels And Blood Clots, Dustin Michael Nguyen

Master's Theses

Fibrous networks, including collagen and fibrin, provide strength and support, and are critical for maintaining homeostasis. In this study, we have developed algorithms to define the structural properties of collagen and fibrin networks from microscopic images of these networks in abdominal aortic aneurysms (AAA) and blood clots, respectively. AAA is a biomechanical disease characterized by significant changes in the structure and strength of the arterial wall due to differential changes in the composition of fibrillar collagen in adventitial and medial layers. Using bright-field and polarized microscopic images of histological sections of mouse aorta stained with Picrosirius red (PSR) stain, we …

The Conservation, Excavation, And Analysis Of Ancient Human Remains: A Bioarchaeological Case Study Of Prehistoric Reburials From Nevis, West Indies, Marissa Nicole Massaro

Master's Theses

In the summer of 2015, the cranium of what seemed to be an indigenous Caribbean individual was discovered partially exposed on White’s Bay Beach, Nevis. The following year, upon excavation of two known burial sites, a test pit brought forth an additional burial of two individuals dating about 1025-1275 AD. Currently, there is very little known about this period causing confusion about the migration and settlement patterns of the Caribbean people during this time. Additionally, the Nevis Historical and Conservation Society is experiencing rising concerns of the demolition and utilization of their historical land and beaches for infrastructural development. As …

Counterterrorism Policy Towards Boko Haram In Nigeria During 2009-2015, Steve Olufemi Ojelade

Walden Dissertations and Doctoral Studies

The Nigerian government has emplaced counterterrorism policy measures to combat Boko Haram terrorism since the group became violent in 2010. However, there is a gap in the understanding of how these policies were developed and implemented. Such knowledge may offer suggestions as to how these policies can be improved. The purpose of this qualitative case study was to explore and describe the development and implementation of counterterrorism policy towards Boko Haram in Nigeria during 2009-2015. Scott's institutional theory and Baumgartner's punctuated equilibrium theory constituted the study's theoretical foundation. Interview data were collected from individuals selected using a purposive and criterion …

Response Of Ovine Neutrophils To Different Life Stages Of Haemonchus Contortus, Denzel Deshawn Middleton

Graduate Theses, Dissertations, and Problem Reports (ETD)

No abstract provided.

Biophysical Investigation Of Phlip-Membrane Interaction, Chitrak Gupta

Graduate Theses, Dissertations, and Problem Reports (ETD)

No abstract provided.

A Low-Cost Normalized Difference Vegetation Index (Ndvi) Payload For Cubesats And Unmanned Aerial Vehicles (Uavs), Steven Hard

Graduate Theses, Dissertations, and Problem Reports (ETD)

The focus of this research has been the design and fabrication of a Normalized Difference Vegetation Index (NDVI) payload configuration. This unique payload employs low-cost commercial off-the-shelf (COTS) hardware and equipment to assess photosynthetic activity and vegetation health through remote sensing on Cubesat or Unmanned Aerial Vehicle (UAV) platforms. The proposed NDVI imaging payload is comprised of three main subsystems: an electrical system, a software system, and a hardware system. The electrical system includes a custom designed printed circuit board (PCB), a single cell 3.7 V lithium-polymer battery, voltage regulator circuitry components, and wiring harnesses and connectors. The software system …

Development Of A Novel Salivary Cortisol Laboratory Experiment For Undergraduate Physiology Students, Charmin C. Guy

Honors Theses

Developing an endocrine-based laboratory exercise for undergraduate students is challenging because of the limitations that are characteristic of endocrine processes. These laboratory exercises often involve invasive methods and expensive biochemical analysis. They are also time consuming because of the slow-acting endocrine responses. A potential endocrine-based exercise that can be completed in 2-3 hours, is non-invasive, and at a low cost is a salivary assay. This assay is not without drawbacks, however, including sample collection outside the laboratory classroom. Cortisol is a hormone that is accessible in saliva and provides some insight into the Hypothalamic-Pituitary-Adrenal Axis (HPA Axis), also known as …