Digital Commons Network^™

Dementia Caregiver Coping Strategies And Caregiver-Care Recipient Relationship Closeness: Associations With Care-Recipient Outcomes, Stephanie Behrensberg

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This project used data from the Dementia Progression Study, a longitudinal, population-based study based out of Cache County, Utah. Statistical models were used to examine the association between caregiver factors, the care environment, and cognitive outcomes in persons with dementia. Mediational analyses were also used to examine if the care environment, inferred for nutritional status, engagement in physical and cognitively stimulating activities, mediated the relationship between the closeness/caregiver coping strategies and cognition in persons with dementia. Results showed that closer caregiver-care recipient relationships were associated with better nutritional status and more engagement in number of cognitively stimulating activities as well …

Development And Validation Of An Agricultural Literacy Instrument Using The National Agricultural Literacy Outcomes, M. Rose Judd-Murray

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study was conducted to develop a standardized agricultural literacy assessment using the National Agricultural Literacy Outcomes (NALOs) as benchmarks. The need for such an assessment was born out of previous research, which found that despite numerous programs dedicated to improving agricultural literacy, many students and adults remain at low or very low levels of literacy. Low literacy levels lead to negative associations with the production and processing of food, clothing, and shelter, as well as misinformed public perceptions and policies. Agricultural literacy researchers recognized that the development of a standardized assessment for post-12^th grade, or equivalent, could unify …

Thylacine Dreams: The Vernacular Resurrection Of An Extinct Marsupial, Daisy M. Ahlstone

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This thesis explores the folk resurrection of the thylacine through artwork and symbolic interaction. The thylacine, better known as the Tasmanian tiger, is a marsupial that suffered a government-sanctioned massacre leading to its extinction in 1936. The thylacine’s status as a hidden animal has inspired what folklorists call “ostensive practice”; people not only actively seek out the thylacine in the wilderness of Tasmania today and share their sightings online, but they have also incorporated the thylacine as a symbol of hope and perseverance into various forms of folk art.

There have been upwards of five thousand documented sightings of the …

Epigenetic Reprogramming, Apoptosis, And Developmental Competence In Cloned Embryos, Laura A. Moley

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Cloning through somatic cell nuclear transfer (SCNT) remains highly inefficient twenty years after the first demonstration of the technology with the birth of Dolly. By increasing efficiency by selecting the embryos early in development that are most likely to succeed following transfer into a surrogate mother, the technology could be more routinely utilized to enhance animal agriculture production. SCNT is believed to be highly inefficient as a result of incorrect DNA methylation and gene expression that are accumulated because of the SCNT technique. We proposed the use of a non-toxic, non-invasive detector of cell death, to quantitatively assess embryo competency …

The Vulnerability Of Littoral Structures Under Multiyear Drought Conditions, Jenna M. Keeton

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Climate change is associated with altered environmental conditions and shifting mosaics of suitable habitats for organisms. Climate change in the form of drought can shift important lake shoreline habitats downslope, altering the lakes chemistry and habitat availability. Additionally, negative biological consequences can occur after a loss of submerged habitat along shorelines, hereafter littoral habitat. The objective of this study is to evaluate whether littoral habitat is lost (cobble, coarse woody habitat (fallen trees; CWH), and aquatic vegetation) under drought conditions across the United States. I used the National Lakes Assessment physical habitat data collected in summer 2012, when 75% of …

The Effect Of Lactation And Energy Status On Gene Expression In The Main Reproductive Tissues Of Lactating Dairy Cattle, Sameer M. Alhojaily

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Modern high-yielding dairy cows are currently producing far more milk than their ancestors due to a prolonged and intensive genetic selection for milk production trait accompanied by the revolutionary improvement in technology, management, and nutrition. On the other hand, a noticeable decline in fertility and reproductive performance was undeniably consistent with the increase in milk yield. This decline in fertility and reproductive performance are recognized worldwide and well documented in several studies. Dairy cows typically experience a period of energy deficit during the first few months of lactation due to the rapid increase in milk production and limited feed intake. …

Subsistence Strategy Tradeoffs In Long-Term Population Stability Over The Past 6,000 Years, Darcy A. Bird

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

I conduct the first comparative analysis of long term human population stability in North America. Questions regarding population stability among animals and plants are fundamental to population ecology, yet no anthropological research has addressed human population stability. This is an important knowledge gap, because a species’ population stability can have implications for its risk of extinction and for the stability of the ecological community in which it lives. I use archaeological and paleoclimatological data to compare long term population stability with subsistence strategy and climate stability over 6,000 years. I conduct my analysis on a large scale to better understand …

A Narrative Approach To Educational Video Training, Matthew S. Havertz

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Teachers often use videos to teach their students, but stories are not used as often in educational videos as they could be. Experts tell us that stories are an important part of teaching and learning. Unfortunately, there is only a small amount of research and no definitive expert agreement about stories used in educational videos. This is especially true for videos used with technical education students, like mechanic students or dental assisting students. In this study, dental assisting students learned how to assist a dentist with a standard cavity procedure after watching a video with or without a story. The …

"There Should Be No Tolerance For Intolerance": Internal Antagonism In Online Fan Communities, Michelle W. Jones

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This thesis focuses on exploring cases of internal antagonism in fan communities, with a specific focus on the Steven Universe (2013 -) and Undertale (2015) communities present on Tumblr and Twitter. Internal antagonism is a phenomenon that occurs when a community targets a member within itself instead of outside itself, often as a way to mediate and regulate the community and reinforce its values. This thesis considers three case studies of internal antagonism with both physical and digital implications in order to better understand the role it plays in shaping and sustaining online fan communities as well as mediating the …

Women In Agriculture: Living In A "Man's World", Ennea A. Fairchild

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Despite women’s involvement in agriculture, their contributions have been overlooked in society. Women make up at least a third of those involved in agriculture as farmers, landowners, and in agricultural faculty positions. These numbers do not appear to be decreasing. Although there are several agricultural roles, this study focuses primarily on those women who own agricultural land, but do not farm the land themselves. Rather, these women rent it out to a farmer who operates the land for them (women nonoperating landowners or WNOLs, in short). Previous research suggests these women may be facing considerable barriers as an agricultural landowner …

The Factors Affecting Wind Erosion In Southern Utah, Mehmet Ozturk

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Wind erosion is a global issue and affecting millions of people in drylands by causing environmental issues (acceleration of snow melting), public health concerns (respiratory diseases), and socioeconomic problems (costs of damages and cleaning public properties after dust storms). Disturbances in drylands can be irreversible, thus leading to natural disasters such as the 1930s Dust Bowl. With increasing attention on aeolian studies, many studies have been conducted using ground-based measurements or wind tunnel studies. Ground-based measurements are important for validating model predictions and testing the effect and interactions of different factors known to affect wind erosion. Here, a machine-learning model …

Biophysical And Structural Characterization Of Shigella Atpase Spa47 Oligomerization Provides Insight Into Type Three Secretion System Activation And Virulence, Jamie L. Burgess

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Several bacterial pathogens including Shigella (shigellosis), Escherichia coli (urinary tract infections), Pseudomonas (lung infections), Salmonella (food poisoning), and Yersinia (plague) critically rely on a complex type three secretion system (T3SS) for infection. With the rise in multi-antibiotic resistant strains of several of these pathogens, we turn to the T3SS as a promising target for the development of novel therapeutics. The Dickenson lab at Utah State University has been the first to identify and characterize the ATPase Spa47, the energy source of the Shigella infection system. We show that Spa47 is necessary for proper T3SS formation and function, being ultimately responsible …

The Law Of The Soul, Arthur J. Jacobson

Cardozo Law Review

Do you believe that human beings have souls, and dogs, for example, do not? And if you believe that humans have souls, then must you also believe that in order for the soul to be a soul it must be immortal? Or can the soul be born with us and die with us, never to return, and still be a soul? And if you believe that it must be immortal, then must you also believe that if it is not immortal, then it is just a psyche - the forms of awareness, desiring and imagining that humans share with all …

The Principles And Nature Of Jewish Law, J. David Bleich

Cardozo Law Review

A professor at a prominent school of law relates that he was asked a rather incongruous question. On the last day of classes in a course on Roman law, a student soliciting information regarding the approaching final examination asked, "Are we responsible only for material in the textbook or are we responsible for recent cases as well?" It is, of course, ludicrous to speak of "recent cases" in conjunction with a system of law that, despite its continued and profound influence over other systems of law, has for many centuries not been sovereign in any jurisdiction.

Comparative Hermeneutics Of Constitutional Revision Clauses And The Question Of Structural Closure Of Legal Systems, Otto Pfersmann

Cardozo Law Review

Arthur Jacobson is, with J. David Bleich, the author of a wonderful book on Jewish Law, along with very fine papers on difficult issues in this domain, as well as in constitutional law. As he clearly and convincingly argues, problems of interpretation are of particular difficulty and interest, when we try to understand and apply the message of a revelation as legal provisions, especially under the circumstances of the diaspora. How can the requirements given by divinity itself to mankind or to one particular people bound by a covenant give rise to controversy, conflicting understandings and even conflicting concretizations? Jacobson …

On Constitutional Identity And The Loyalties Of The Constitutional Judge, András Sajó

Cardozo Law Review

The following remarks consider the relation of judicial loyalty and constitutional identity. These two concepts were always of great interest to Arthur Jacobson's scholarship and their combined discussion is not only necessitated by certain constitutional developments in this age's return to nationalist sovereignty but is a token of Arthur's appreciation.

Cybersecurity Paradigm Shift: The Risks Of Net Neutrality Repeal To Energy Reliability, Public Safety, And Climate Change Solutions, Catherine J.K Sandoval

San Diego Journal of Climate & Energy Law

This Article contends that the Federal Communications Commission’s (FCC) January 2018 repeal of net neutrality rules created a “zero-day” cybersecurity vulnerability for the energy sector and other criti¬¬¬cal infrastructure. “A zero-day cybersecurity vulnerability is a previously unknown flaw in a computer program that exposes the program to external manipulation.” The flaw may also reside in compromised hardware that creates a “back door” into the internet-connected device. This Article argues that cybersecurity has been primarily viewed from a “hacker paradigm” that obscures systemic threats an Internet Service Provider (ISP) can create to energy reliability and cybersecurity through paid priority and other …

Sand And Pumice Filter Amended With Activated Carbon And Biochar For Phosphorus Retention, James Jihoon Kang, Marissa Davila, Sergio I. Mireles, Jungseok Ho

School of Earth, Environmental, & Marine Sciences Faculty Publications

Phosphorus (P) loss via stormwater runoff is a water quality concern. The objective of this study was to investigate two commercial biochars relative to an activated carbon as an additive to geomedia (sand and pumice) for P removal. The batch adsorption experiment was conducted to assess P sorption of the geomedia and carbon materials while the leaching experiment was conducted in sand and pumice columns amended with carbon materials (5 % by weight). The batch adsorption test revealed that only activated carbon showed an appreciable P adsorption up to 19 %. Tested biochar materials showed no adsorption capacity for P …

Biosecurity Council Visit To Kununurra August 2019, Biosecurity Council Of Western Australia

Biosecurity published reports

In late 2018, the Biosecurity Council committed to holding regional meetings, possibly annually. The intent of regional meetings are to:

• Engage with local/regional stakeholders on biosecurity matters
• Build networks/relationships with key biosecurity stakeholders
• Provide a conduit to government/agencies for local/regional biosecurity stakeholders.

Council agreed to hold its first regional visit in Kununurra, located in the East Kimberley. The East Kimberley, has a unique set of biosecurity challenges — Kununurra is an important horticulture growing region, there is a large pastoral presence, it adjoins the Northern Territory (NT) border and is in close proximity to Indonesia, it is a hub for …

Words As Weapons And Wisdom, Barbara Paige

UNLV Theses, Dissertations, Professional Papers, and Capstones

The Harlem Renaissance and the Black Arts Movement were two seminal eras in American history. The Renaissance also referred to as the New Negro Movement was a literary artistic, and cultural movement, centered in Harlem in which writers produced large bastions of literary works. African descended people began to identify with their African past and intellectuals adopted Black Nationalist and Pan-Africanist methodologies to overcome oppression. Their efforts laid a foundation for the Civil Rights movement. The Black Arts Movement, an era of intense literary artistic activism begun with the assassination of Malcolm X. Artist/intellectuals responded to a more hostile environment …

Application Of Semi-Hydrophobic Layers To Decrease Bare Soil Evaporation, Jesse Lee Barnes

UNLV Theses, Dissertations, Professional Papers, and Capstones

Evaporative water loss from bare agricultural soils is a primary area of water conservation research. Mulching is the commonly utilized method to decrease evaporative water loss. The most commonly utilized mulch is nonbiodegradable polyethylene sheeting because it tends to decrease evaporative water loss and increase crop yields more than environmentally friendly mulches. This study aimed to test the utility of sand coated with polymerized soybean oil (i.e., hydrophobic sand) as a treatment to reduce bare soil evaporation and an alternative to current practices. Evaporation rates were measured in laboratory soil columns containing both treated and untreated soils. Treatment parameters were …

Counterfeit Campaign Speech, Rebecca Green

UC Law Journal

We are entering an era in which computers can manufacture highly-sophisticated images, audio, and video of people doing and saying things they have, in fact, not done or said. In the context of political campaigns, the danger of “counterfeit campaign speech” is existential. Do current laws adequately regulate faked candidate speech? Can counter speech effectively neutralize it? Because it takes place in the vaulted realm of core political speech, would the First Amendment stymie any attempt to outlaw it? Many smart people who have looked at the general problem of deceit in campaigns have concluded that the state has no …

Diet, Digestion And Energy Intake In Captive Common Marmosets (Callithrix Jacchus): Research And Management Implications, Michael L. Power, Jessica Adams, Kirsten Solonika, Ricki J. Colman, Corinna N. Ross, Suzette D. Tardif

Biology Faculty Publications (Archived)

Common marmosets (Callithrix jacchus) are susceptible to intestinal inflammation which leads to chronic diarrhea, weight loss, and vitamin D deficiency. We examined food intake and digestion in three mixed-sex groups of adult marmosets maintained on three commercial base diets. Animals underwent two consecutive 4-day digestion trials. Body mass stayed constant. Feces and diet were assayed for Mn, fat, and gross energy (GE). Apparent digestibility of dry matter (ADDM) was calculated by the total collection method and from dietary and fecal Mn; the methods produced correlated results (r = 0.658, p < 0.001). Apparent digestibility of energy (ADE) was calculated from ADDM and the GE of feces and diet; apparent digestibility of fat (ADfat) was calculated from ADDM and fecal fat. ADDM and ADE varied by diet (p < 0.001). We found poor digesters on all three diets. The concentration of fecal fat was inversely related to ADE (r = −0.729, p < 0.001). High fecal fat (>10%) was associated with ADfat of zero, consistent …

Professional Portfolio, Matthew Van Orden

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

My transition portfolio contains a compilation of the highlights of my experiences in the transition specialty masters degree program. It includes a literature review, transition assessment report, personnel preparation report, and a collaboration report. I performed a review of the academic literature in the area of transition assessments for people that are non-verbal and that have significant cognitive disabilities. My transition assessment report reviews how I performed a transition assessment for one of my students. This assessment helped me drive my instruction that eventually led to a job in an area of his interest. The personnel preparation report contains a …

An Integrated Genomics And Phenomics Approach To Study The Evolution Of C4 Photosynthesis, Daniel Santana De Carvalho

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

The C4 photosynthetic pathway was first described over 50 years ago. Today, it is known that C4 evolved independently > 60 in plant lineages, which involves understanding not only the genetic, but also the metabolic features and differences involved in this process. Also, several adaptations are involved in the evolution of this type of photosynthesis, for example: changes in leaf anatomy and the evolution of kranz anatomy, physiology and metabolic pathways. In order to further investigate this pathway, different technologies and methods have been developed to unravel genes involved in C4 photosynthesis. With the advances in molecular biology and bioinformatics tools …

Dual Biological Control: Characterization Of Fungi And Bacteria To Control Granary Weevil And Fungal Pathogens Of Stored Grain, Gülçin Ercan

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

Cereals are main food sources for humans and animals. However, during storage, cereal grains can be infested by insects and fungi. One of the most important insect storage pests is Sitophilus granarius (L., Coleoptera: Curculionidae). Adults and larvae can cause serious grain losses. In addition to insect pests, fungal pathogens may also invade the grain and cause economic loss, including contamination with mycotoxins, which threaten mammal health by causing serious disease. The most common mycotoxigenic grain fungi are species that belong to the genera Fusarium, Aspergillus and Penicillium. Currently, the most commonly used management strategies for insect and …

How Does Identifying As Gluten-Free Impact Information Choice Regarding The Gluten-Free Diet?, Pratiksha Baishya

Department of Agricultural Economics: Dissertations, Theses, and Student Research

The market for gluten-free products is a multi-billion-dollar industry in the United States and has seen tremendous growth in the recent years. The retail sales of gluten-free foods in the United States almost tripled between 2011 and 2015, although rates of diagnosed gluten-related health problems have not risen. In addition to people who suffer from Celiac Disease, Wheat Allergy and Non-Celiac Gluten Sensitivity, there is a category or people known as PWAG (people who avoid gluten) who seem to have significantly contributed to this boom in the market for gluten-free foods. With more people choosing to adopt the gluten-free diet, …

A Search For A High-Order Excitation Of Surface Phonon Polaritons On Silicon Carbide Metasurfaces, Md Litan Ali

Theses and Dissertations

Metasurfaces promise a control of light in free and confined spaces like optical waveguides using subwavelength-scale nanostructures. In this work, we experimentally investigate a variety control of light in more confined spaces which is localized surface waves of light. A control of surface waves has been challenged because of a lack of efficient nanostructures. For example, conventional and widely used metallic nanostructures have a high coupling efficiency of light due to free charge carriers but the charge carriers induce a high optical power loss. We recently designed and fabricated metal/dielectric multilayer aperture on ionic crystal, which shows a strong resonance …

Comparison Of Eight Remnant Tamaulipan Biotic Province Plant Communities In The Lower Rio Grande Valley Using Multivariate Analyses [Comparación De Ocho Comunidades Vegetales Remanentes De La Provincia Biótica Tamaulipeca El Valle Del Río Grande Usando Análisis Multivariada], Raziel I. Flores

Theses and Dissertations

The Tamaulipan Biotic Province falls within a biogeographic ecotone between temperate North America, the neotropics and the Chihuahuan Desert, and has consequently been defined as “Tamaulipan brushlands.” No quantitative, comparative study has ever been undertaken on the many and varied plant communities that occur in the region. This study compares eight remnant, primary plant communities to test the null hypothesis that the province comprises a single definable vegetation type. Four 50 x 10 m belt-transects were established at each site and woody plants taller than 1 m were recorded to determine species frequency, density, stratification and dominance. Community diversity was …

Factors Associated With Eosinophilic Esophagitis In Nevada, Julia Lorraine Anderson

UNLV Theses, Dissertations, Professional Papers, and Capstones

Eosinophilic esophagitis (EoE) is a rare immune-mediated illness with symptoms that range from difficulty swallowing to food impaction of the esophagus. Most published studies have been documented among patients residing in cool regions with significant annual rainfall. No published studies to our knowledge have been performed examining the healthcare utilization trends of EoE in Nevada. Utilizing two unique databases, the factors associated with EoE healthcare utilization patterns in Nevada were examined. All analyses were performed in R version 3.5.1. This study included a demographic and regional analysis identifying risk factors associated with having an EoE healthcare visit in Nevada. Several …