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Little Farm Hands: Rural Child Labor, Family, And Memory In The U.S. Southwest, 1890-1940, Jairo E. Marshall

History ETDs

Child labor was a traditional subsistence and agricultural practice throughout the rural Southwest. Between 1890 and 1940 a series of changes occurred within agriculture, ranching, and rural land/labor patterns in New Mexico and Texas. However, child labor remained a useful economic strategy for families well into this period, because it remained grounded in environmental challenges, cultural practices, agrarian ideologies, and children’s social and physical development. Agribusinesses took advantage of this labor pool, while schools and communities continued to allow children to labor, believing it to be either necessary or beneficial.

Families and children continued to have agency to determine the …

Predicting The Daily Return Direction Of The Stock Market Using Hybrid Machine Learning Algorithms, X. Zhong, David Lee Enke

Engineering Management and Systems Engineering Faculty Research & Creative Works

Big data analytic techniques associated with machine learning algorithms are playing an increasingly important role in various application fields, including stock market investment. However, few studies have focused on forecasting daily stock market returns, especially when using powerful machine learning techniques, such as deep neural networks (DNNs), to perform the analyses. DNNs employ various deep learning algorithms based on the combination of network structure, activation function, and model parameters, with their performance depending on the format of the data representation. This paper presents a comprehensive big data analytics process to predict the daily return direction of the SPDR S&P 500 …

Msto1 Mutations Cause Mtdna Depletion, Manifesting As Muscular Dystrophy With Cerebellar Involvement., S Donkervoort, R Sabouny, P Yun, L Gauquelin, K R Chao, Y Hu, I Al Khatib, A Töpf, P Mohassel, B B Cummings, R Kaur, D Saade, S A Moore, L B Waddell, M A Farrar, J K Goodrich, P Uapinyoying, S H S Chan, A Javed, M E Leach, P Karachunski, J Dalton, L Medne, A Harper, C Thompson, Isabelle Thiffault, S Specht, R E Lamont, Carol J. Saunders, H Racher, F P Bernier, D Mowat, N Witting, J Vissing, R Hanson, Keith A. Coffman, Meagan K. Hainlen, J S Parboosingh, A Carnevale, G Yoon, R E Schnur, Care4rare Canada Consortium, K M Boycott, J K Mah, V Straub, A Reghan Foley, A M Innes, C G Bönnemann, T E Shutt

Manuscripts, Articles, Book Chapters and Other Papers

MSTO1 encodes a cytosolic mitochondrial fusion protein, misato homolog 1 or MSTO1. While the full genotype-phenotype spectrum remains to be explored, pathogenic variants in MSTO1 have recently been reported in a small number of patients presenting with a phenotype of cerebellar ataxia, congenital muscle involvement with histologic findings ranging from myopathic to dystrophic and pigmentary retinopathy. The proposed underlying pathogenic mechanism of MSTO1-related disease is suggestive of impaired mitochondrial fusion secondary to a loss of function of MSTO1. Disorders of mitochondrial fusion and fission have been shown to also lead to mitochondrial DNA (mtDNA) depletion, linking them to the mtDNA …

Convergence Of Human And Old World Monkey Gut Microbiomes Demonstrates The Importance Of Human Ecology Over Phylogeny, Katherine R. Amato, Elizabeth K. Mallott, Daniel Mcdonald, Nathaniel J. Dominy, Tony Goldberg, Joanna E. Lambert, Larissa Swedell, Jessica L. Metcalf, Andres Gomez, Gillian A. O. Britton, Rebecca M. Stumpf, Steven R. Leigh, Rob Knight

Publications and Research

Background

Comparative data from non-human primates provide insight into the processes that shaped the evolution of the human gut microbiome and highlight microbiome traits that differentiate humans from other primates. Here, in an effort to improve our understanding of the human microbiome, we compare gut microbiome composition and functional potential in 14 populations of humans from ten nations and 18 species of wild, non-human primates.

Results

Contrary to expectations from host phylogenetics, we find that human gut microbiome composition and functional potential are more similar to those of cercopithecines, a subfamily of Old World monkey, particularly baboons, than to those …

The Water Table, Soil Moisture And Evapotranspiration Conditions Following The Removal Of Conifers From Two Encroached Meadows, Tyler J. Davis

Master's Theses

Montane meadows provide essential habitat for a variety of unique species and important ecosystem services in the western United States. Although important, meadows have experienced increased rates of conifer encroachment due to climate change, fire suppression and grazing. To combat meadow degradation from conifer encroachment, land managers have employed various restoration strategies one of which is conifer removal. Multiple studies have investigated the relationship between meadow hydrology and vegetation; however, few have assessed the effect of conifer removal on meadow groundwater. The goal of this study is to determine if the removal of conifers from an encroached meadow has an …

Evaluation Of Pheromone Mating Disruption For California Red Scale Control In Commercial California Citrus, Joel Timothy Leonard

Master's Theses

California red scale (CRS), Aonidella aurantii, is an increasingly injurious insect pest for the California citrus industry due to insecticide resistance, changing weather patterns, and shifting trade regulations. The presence of the insect on fruit, damages the rind of the fruit and high populations can cause dieback of branches as well as lower yields. Pheromone mating disruption of CRS has the potential to alleviate population control concerns and reduce insecticide use. The efficacy of the pheromone mating disruption technique for pest management of CRS was determined using the products CheckMate® CRS and Semios CRS Plus. CheckMate® CRS was evaluated …

Effects Of Infanticide Risk And Timber Harvest On American Black Bear Space Use, D. Cody Norton

All NMU Master's Theses

Space use is an important aspect of bear ecology that maybe influenced by infanticide risk and timber harvest. I used generalized linear mixed models (GLMM) to determine if female American black bear (Ursus americanus) space use was consistent with avoidance behavior to reduce infanticide risk in the Upper Peninsula of Michigan during the 2009–2011 and 2013–2014 breeding seasons. Females with cubs occupied core areas and home ranges of similar size and relative probability of male use to females without cubs. Additionally, females with cubs did not reduce movements during times of day when male movements were greatest. Female …

Improving Diabetic Foot Screening In A Primary Care Clinic For Homeless Adults: A Quality Improvement Project, Theresa Causa

Doctor of Nursing Practice

The purpose of this project was to increase the adherence of clinic providers at the homeless primary care clinic by implementing the American Diabetes Association Clinical Guidelines for the evaluation and management of Type 2 diabetes with foot care. Type 2 diabetes is a chronic condition that affects 13% of the Texas adult population (Centers for Disease Control and Prevention, 2014). The homeless person's main method of transportation is walking. The complications of undiagnosed foot problems include reduced mobility, pain, lower limb amputations, and difficulty controlling chronic diseases including diabetes and depression. Provider responsibilities include screening for diabetes in all …

Examining Resiliency In Adolescent Refugees Through The Tree Of Life Activity, Marcella Stark, Brandy Quinn, Katharine Hennessey, Amanda Rutledge

Journal of Youth Development

Grounded in both resiliency science and positive youth development, the research team set out to understand the strengths and resources of adolescent refugees living in northeast Texas. In coordination with a local refugee services agency, members of the research team conducted the Tree of Life activity with 16 participants ranging in age from 13 to 20 years. Identifying 16 codes in the qualitative analyses of participants’ drawings, they organized these codes into 3 themes: self-efficacy, values, and relationships. The authors recommend the use of Tree of Life and other creative arts activities to facilitate the discovery of strengths and resources …

Leisure Experiences And Social Support Systems Of Latino Students With Daca Status, Austin Langley, Gwynn Powell, Toni Liechty, William Haller

Journal of Youth Development

The purpose of this study was to gain a better understanding of the leisure experiences of undocumented Latino young adults with Deferred Action for Childhood Arrivals (DACA) status in order to note any potential links between leisure experience and success in reaching higher education. This population faces a unique set of challenges in their transition to adulthood and their pursuit of and access to higher education. Research suggests that 3 common factors among undocumented young adults who have been successful in reaching higher education are extra-familial mentors, positive social supports, and supplementary educational programming. This study used these 3 factors …

Examining Resiliency In Adolescent Refugees Through The Tree Of Life Activity, Marcella Stark, Brandy Quinn, Katharine Hennessey, Amanda Rutledge

Journal of Youth Development

Grounded in both resiliency science and positive youth development, the research team set out to understand the strengths and resources of adolescent refugees living in northeast Texas. In coordination with a local refugee services agency, members of the research team conducted the Tree of Life activity with 16 participants ranging in age from 13 to 20 years. Identifying 16 codes in the qualitative analyses of participants’ drawings, they organized these codes into 3 themes: self-efficacy, values, and relationships. The authors recommend the use of Tree of Life and other creative arts activities to facilitate the discovery of strengths and resources …

Bridging Families And Schools To Prevent Youth From Running Away From Home, Monica Bixby Radu

Journal of Youth Development

Running away from home is a serious problem among American youth. It has been linked to numerous negative social, psychological, and behavioral outcomes. It is well established that family dysfunction is one reason that youth run away from home. However, less research focuses on how both families and schools influence youths’ likelihood of running away from home. Drawing from a sample of 4,546 youth from the 1997 National Longitudinal Survey of Youth, I examine how youths’ perceptions of their schools’ safety, experiences with bully victimization, and bonds with their families and their schools predict the likelihood of running away from …

Effects Of Mercury On The Dopamine Transporter Cell Surface Expression In Pc12 Cells, Christina Hui

Student Theses

Environmental factors, such as heavy metal exposures, have been suggested to have an impact not only on neurodegenerative disease, such as Parkinson’s disease, but also on psychostimulants abuse and their toxicity. In this study, two questions were addressed: 1) effects of mercuric chloride on parkinsonian toxicant 1-methyl-4-phenylpyridinium (MPP⁺) induced cytotoxicity and 2) effects of mercuric chloride on cell surface dopamine transporter. Pheochromocytorma cells (PC12) were treated with various concentrations of mercuric chloride (0.02~2.0 ppm) for 4 hours with and without 0.1 mM MPP⁺. Significant potentiation of toxicity was observed when there was co-treatment with 0.5 ppm …

Evaluation Of A Novel Dna Collection Matrix Designed To Improve Recovery Of Touch Dna From Non-Porous Surfaces, Eric Ramirez

Student Theses

The collection of touch DNA from evidence has been a challenge in the field of Forensic Biology for decades. There are numerous collection protocols, substrates, and solutions that have been used to varying levels of success. Currently, no single method or substrate stands out as the single most effective collection protocol. The Gene Link Omni Matrix™ K105 solution is a novel collection method that can be sprayed onto the surface of non-porous evidence. The matrix dries into a film, capturing cells and cell-free DNA which can be scraped off and collected into a tube. During extraction, the matrix dissolves into …

Dna Mixture Statistics Using A Likelihood Ratio Software Tool: Effect Of Variations In Drop-Out Rates And Number Of Contributors, Felicia M. Lucero

Student Theses

Complex DNA mixtures can be very probative evidence, but comparisons to a person of interest can be affected by allelic drop-out and uncertainty regarding the number of individuals having contributed DNA to a sample. Scientific organizations such as the International Society of Forensic Genetics (Gill et al., 2006) recommend that likelihood ratios should be used to provide a statistical weight when a positive association is made between the DNA profile of a person of interest and an evidentiary DNA sample. To this effect the New York City Office of Chief Medical Examiner (OCME) developed a software program, Forensic Statistical Tool …

Relationship Between Childhood Relationships And Antisocial And Lifestyle Characteristics Of Psychopathic Traits, Esther Kim

Student Theses

Psychopathy is a heterogeneous personality construct that has long been associated with antisocial behaviors and outcomes (Hare, 2003; Walsh & Kosson, 2006). However, some literature suggests that socially deviant behaviors and outcomes may not necessarily be a fundamental component of psychopathy (Cooke & Michie, 2001; DeMatteo, Heilbrun, & Marczyk, 2001; Lilienfeld & Widows, 2005). Research on externalizing behaviors and psychopathy has broadened from examining the quality of early relationships as a risk factor (Salekin & Lochman, 2008), to also examining early relationships as a potential protective factor against the development of psychopathic characteristics and antisocial outcomes (i.e. Backman, Laajasalo, Jokela, …

Platelet-Rich Plasma Can Release Nutrient Factors To Promote Facial Nerve Crush Injury Recovery In Rats, Liheng Li, Jing Cai, Yang Yuan, Yanyan Mao, Lei Xu, Yuechen Han, Jianfeng Li, Haibo Wang

Saudi Medical Journal

Objectives: To evaluate the effects of platelet-rich plasma (PRP) on promoting neural repair after facial nerve compression in rats and the mechanism by which this occurs. Methods: Adult Wistar rats (n=100) were divided into 3 groups: healthy controls, surgery-only, and surgery+PRP groups. The rats underwent nerve crush injury to establish a facial palsy model. The blood from the rats was used to prepare the PRP for application to the injury site. The evaluation methods included vibrissae movement, eyelid closure, and electrophysiology. Electron microscopy, immunohistochemistry, and real-time polymerase chain reaction (PCR) were used to detect nutrient factor expression in the brain …

Gnome Waste Warriors: Waste Reduction Through Sustainability, Hayley E.R. Frost Rubino

Capstone Projects and Master's Theses

The focus of this Capstone Project was on how waste and waste reduction could positively impact a community. Waste reduction is an important issue because the negative impacts of waste affect the whole planet. By educating Monterey Gnome School (MGS) about waste, changes in daily habits are intended to result in lasting change. An evidence-based argument is offered that waste is a global issue that negatively impacts the earth's landmasses, oceans, and human health. Both MGS staff and students were interviewed and surveyed, as their perspectives provide unique aspects of thinking about waste issues. The themes that emerged from an …

Escapando Las Trampas: Teacher Preparation For Mexicanas, Larissa Perez

Capstone Projects and Master's Theses

Developing Maestras face and overcome linguistic, academic and cultural forms of gatekeeping while trying to navigate through our current education system. For this Capstone Project, the impact that gatekeeping has on developing Maestras and how it affects their academic and professional aspirations was investigated. This is an important issue for developing Maestras, the University of Gringolandia as well as for the education system of Nepantla county. The success of developing Maestras Mexicanas closes the racial gap and directly impacts the student success rate within Nepantla county. The literature and data results analysis indicate that the gatekeeping practices that keep Mexicanas …

Outside The Gender Binary: A Workshop On Gender Identity And Being An Ally, Jelea Kai Glover

Capstone Projects and Master's Theses

The gender binary, or the idea of gender only having two expressions that are associated with people’s biological sex, is the norm of expression in the United States (Dragowski, 2014). It is not realistic to how people express themselves on a regular basis; it ignores the diversity of gender identities such as transgender, intersex, and genderqueer individuals. My capstone project focuses on college students because this is a time where they ponder their values and identities without the heavy judgment of parents’ or guardians’ expectations. My capstone project was a one-day workshop teaching different gender identity terms, differentiating the terms …

An Examination Of The Relationship Between Ut Extension Program Assistants' Use Of Communication Technology In The Workplace And Their Ability To Successfully Communicate With Coworkers And The Community, Izetta Slade

Masters Theses and Doctoral Dissertations

This study examined the relationship between the level of communication technology use in the workplace by University of Tennessee Extension program assistants and their interpersonal communication skills. There were seven quantitative research questions and one qualitative question. The main research question explored whether a significant difference existed in employees’ reported levels of communication skills in the workplace, as measured by the sociocommunicative orientation (SCO) scale, based on employees’ reported levels of communication technology use. Other questions explored whether there was a significant interaction between employees’ reported levels of communication technology use and their job positions on their levels of communication …

Changes In Avian Diversity And Potential Invasive Seed Dispersal Post-Wildfire In A Southeastern Deciduous Forest; Flipper Bend Woods, Signal Mountain, Tennessee, Mary Elizabeth Feely

Masters Theses and Doctoral Dissertations

In eastern deciduous forests, fire-disturbance and its ecological implications have not been heavily studied. In Tennessee, a recently burned site (2016) presented a unique opportunity to analyze habitat regrowth two-three years after a major wildfire thought to have been worsened by invasive plants. In order to examine post-fire recovery and invasive plant recolonization, researchers observed the diversity of avian species in a burned and unburned site. Using mist-nets, line-transects, and vegetation analysis, this study found that though the unburned site was higher in avian diversity, the burned site appeared to be suitable habitat for multiple disturbance-dependent avian species. There was …

Design Of A System For Inexpensive Underwater Fiber Optic In Vivo Imaging And Mass Balance Accounting Of Tissue Engineering Candidates, Nicole Melissa Bueno Guerrero

Theses and Dissertations

The goal of this project is to create a prototype bioreactor that mimics a cell’s microenvironment. The ultimate goal is to set up an array of 36 bioreactors in parallel and monitor them with an array of sensors that will enable full mass and energy balance accounting and in vivo imaging. This thesis will analyze the various options available for cell imaging, as well as describe the construction of a bioreactor design in which cell images can be obtained without removing the cells from the bioreactor. The hypothesis for this project is that imaging of unstained cells in an aquarium …

Applying Formal Methods For Integrating Advanced Algorithms In Safety Critical Systems, Milton Stafford

Theses and Dissertations

In software engineering it is essential that updates are deployed for continual improvement. While software updates bring new functionality, updates also may introduce instability. This leads to failures of various kinds. This is especially problematic in safety-critical systems where there is a potential for injury or loss of life. However, newer and more sophisticated software carries potential advantages, including higher performance and reliability. Therefore, there are benefits in adopting newer software if the integration process is assured. In this thesis, I present a framework for assured integration; one that links requirements, design, and implementation. The proposed framework includes a new …

Gut Content Analysis Of Benthic Foraging Fish Compared To Invertebrate Infauna Distributions In Dredged Vs. Undredged Habitats, Danielle Louise Juzwick

Theses and Dissertations

The Indian River Lagoon (IRL) has experienced a loss in seagrasses due to organic sediment accumulation and harmful algal blooms. Seagrasses are an essential nursery habitat for many fishes and benthic invertebrates. IRL fish known to utilize benthic habitat and feed on invertebrates include Atlantic croaker (Micropogonias undulates), juvenile Red Drum (Sciaenops ocellatus), and Mojarra (Eucinostomus spp.). The most abundant major infaunal taxa of the IRL are crustaceans, polychaetes, and mollusks. Environmental dredging in the IRL’s Turkey Creek is intended to improve water quality, remove harmful sediments and restore benthic habitat. Such dredging may impact benthic invertebrate populations and, indirectly, …

Earth – Mars Cycler Vehicle Conceptual Design, Bhumika Patel

Theses and Dissertations

This thesis summarizes a conceptual design for an Earth – Mars Cycler vehicle designed to transfer astronauts between Earth and Mars. The primary objective of the design study is to accommodate the crews’ needs and to estimate the overall mass and power required during Earth – Mars transfer. The study defines a concept of operations and system functional requirements and discusses the systems breakdown and subsystems design analysis. Systems developed for the cycler vehicle is designed primarily for the S1L1 cycler trajectory. The initial sizing of cycler subsystems is based on reference data from historical human spaceflight. The study performed …

Developing A Theoretical Framework For Visualization-Based Pedagogical Content Knowledge (V-Pck) Based On Middle School Teachers’ Views And Uses Of Visualizations As An Instructional Tool, Jacqueline Samuel

Dissertations

Visualizations is a categorical term that is often used to provide visual imagery to the communication of processes, concepts, exemplar phenomena, and general information. Objects such as graphs, tables, diagrams, animations, and pictures fall in this category. Existing literature focuses primarily on the use of visualizations in the science field at the high school level, collegiate levels, and in pre-service teacher education programs. A gap in the literature exists which examines how science teachers at the middle school level perceive and use visualizations as instructional components in the classroom. The purpose of this study was to examine science teachers views …

Characterization Of Plasmids Harbored By Vibrio Cholerae Isolates Endemic To The Rio Grande Delta, Viviana Trevino

Theses and Dissertations

Cholera is a diarrheal disease responsible for considerable morbidity and mortality globally. Epidemics along the Rio Grande Delta were reported during the 1850s, and the etiological agent Vibrio cholerae, remains endemic, thus presenting a unique opportunity for a study of historical and biological relevance. V. cholerae strains were isolated from two locations: the Rio Grande River under a bridge linking Brownsville to Matamoros (site 21) and where the river empties into the Gulf of Mexico (site 42). Two strains from site 21, and one from site 42 were selected to isolate, subclone, sequence, assemble and annotate extra-chromosomal elements. Results …

Building Datasets From Publicly Accessible Social Media Images For Biometric Analysis, Giordano Roberto Benitez Torres

Theses and Dissertations

The world is developing at a rapid pace, and some of its advancement can be accredited to technological innovations that are affecting many aspects of society. A field within computer science that is increasingly reaching many industries is Biometrics, specifically the area face recognition. Researchers, scientists, and organizations actively try to improve the performance of tools and algorithms. Nevertheless, for it to occur, there is a need for high-quality datasets to test and develop new techniques. Never had humanity, in the course of the history of civilization, produced massive amounts of data as it currently does. Social media networks play …

Synthesis And Study Of Hydroxytyrosol Derivatives, Ebenezer Ametsetor

Electronic Theses and Dissertations

Hydroxytyrosol is one of the most powerful known antioxidants. It is a naturally occurring polyphenol, most commonly produced in olive trees, (Olea europaea). The remarkable antioxidant and pharmacological properties of hydroxytyrosol has made it an outstanding compound in the polyphenol family and of great interest to many researchers. Hydroxytyrosol can scavenge free radicals produced during cellular oxidative stress and helps to protect the integrity of cells in living systems. Despite its numerous biological and pharmacological uses, it is found in very low concentration in olive oil, this limits its availability for biomedical applications. This work reports a novel and effective …