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Interaction Modules That Impart Specificity To Disordered Protein May 2023

Interaction Modules That Impart Specificity To Disordered Protein

Faculty, Staff and Students Publications

Intrinsically disordered regions (IDRs) are especially enriched among proteins that regulate chromatin and transcription. As a result, mechanisms that influence specificity of IDR-driven interactions have emerged as exciting unresolved issues for understanding gene regulation. We review the molecular elements frequently found within IDRs that confer regulatory specificity. In particular, we summarize the differing roles of disordered low-complexity regions (LCRs) and short linear motifs (SLiMs) towards selective nuclear regulation. Examination of IDR-driven interactions highlights SLiMs as organizers of selectivity, with widespread roles in gene regulation and integration of cellular signals. Analysis of recurrent interactions between SLiMs and folded domains suggests diverse …

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A Weakly Structured Stem For Human Origins In Africa, Eileen G Hoal, Marlo Möller, Brenna M Henn, Simon Gravel May 2023

A Weakly Structured Stem For Human Origins In Africa, Eileen G Hoal, Marlo Möller, Brenna M Henn, Simon Gravel

Faculty, Staff and Students Publications

Despite broad agreement that Homo sapiens originated in Africa, considerable uncertainty surrounds specific models of divergence and migration across the continent1. Progress is hampered by a shortage of fossil and genomic data, as well as variability in previous estimates of divergence times1. Here we seek to discriminate among such models by considering linkage disequilibrium and diversity-based statistics, optimized for rapid, complex demographic inference2. We infer detailed demographic models for populations across Africa, including eastern and western representatives, and newly sequenced whole genomes from 44 Nama (Khoe-San) individuals from southern Africa. We infer a reticulated …

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The Importance Of An Educational Occupation-Based Work Program For Young Adults With Intellectual & Developmental Disabilities, Jennifer Zielinski May 2023

The Importance Of An Educational Occupation-Based Work Program For Young Adults With Intellectual & Developmental Disabilities, Jennifer Zielinski

UNLV Theses, Dissertations, Professional Papers, and Capstones

Barriers to occupations and transitions to vocational opportunities can be difficult for adolescents and young adults with intellectual and developmental disabilities (I/DD)s to feel confident and pursue job opportunities. Some of the problems stem from the stigma related to the individual’s disability, the contexts surrounding them, and the performance of the work tasks expected. Individuals with I/DDs expressed that not having enough support in the community and the workforce creates significant obstacles to retaining a job. Occupational therapists (OT)s can play a unique role in transition and employment for individuals with an I/DD. With a focus on self-determination and successful …

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Systems Dynamics Of The Anterior Cingulate Cortex And Hippocampus In Behavioral Switching, Spatial Working Memory, And Disease, Ryan Wirt May 2023

Systems Dynamics Of The Anterior Cingulate Cortex And Hippocampus In Behavioral Switching, Spatial Working Memory, And Disease, Ryan Wirt

UNLV Theses, Dissertations, Professional Papers, and Capstones

The electrophysiological properties of the hippocampus (HC) and anterior cingulate cortex (ACC) are the central focus of research on learning, memory, and neurological disease. Previous research has shown that HC is essential for forming new memories, spatial navigation, and temporal processing. While the function of ACC, located within the medial prefrontal cortex, remains controversial, it has a role in long-term memory recall, processing pain, monitoring current state, learning, schema updates, and information integrations. Interactions between the ACC and HC occur during social memory, spatial working memory performance, and long-term memory recall. Notably, the HC and ACC are among the first …

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The Transaction Costs Of Federal Environmental Policy Changes: The Effects Of The Temporary Covid-19 Cwa Rollback On Local Water Systems, Jesse Lee Barnes May 2023

The Transaction Costs Of Federal Environmental Policy Changes: The Effects Of The Temporary Covid-19 Cwa Rollback On Local Water Systems, Jesse Lee Barnes

UNLV Theses, Dissertations, Professional Papers, and Capstones

An institutional dilemma exists between the Clean Water Act (CWA) and the Safe Drinking Water Act (SDWA). US surface waters are protected from point-source pollution by the CWA. Community Water Systems (CWSs) that draw from these surface waters for potable purposes are required to treat that water to a level that meets SDWA health standards. Therefore, decreases in CWA regulations could lead to surface water quality declines and, thus, higher SDWA compliance costs for CWSs. This area of inquiry has become increasingly relevant due to Trump-era executive actions to try to decrease the federal government's role in multiple environmental policies, …

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Ga(Y)Zing Backward: Queer Desire In Ovid, Shakespeare, And Scaimma, Falynn Blayre Brickler May 2023

Ga(Y)Zing Backward: Queer Desire In Ovid, Shakespeare, And Scaimma, Falynn Blayre Brickler

UNLV Theses, Dissertations, Professional Papers, and Capstones

As Ovidian myth is a central influence on queer stories throughout time, I am interested in how the female/sapphic gaze impacts the retellings of these narratives. In this thesis, I analyze the action of the gaze as an expression of desire and discuss its multiple meanings in both text and performance. Through tracing the gaze within the queer/sapphic narratives of Shakespeare’s Twelfth Night and Sciamma’s Portrait of a Lady on Fire, I show that the gaze is an intersecting act through which non-normative desire is conveyed. In constructing the gaze as an ephemeral action of queer desire in practice, I …

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Acquired Brain Injury: A Vision Screening Protocol For Occupational Therapists, Sebastian Cheung May 2023

Acquired Brain Injury: A Vision Screening Protocol For Occupational Therapists, Sebastian Cheung

UNLV Theses, Dissertations, Professional Papers, and Capstones

Occupational therapists have a unique set of skills that allow them to assess individuals with an acquired brain injury who have visual impairments. However, it is frequently neglected in practice owing to a lack of confidence, knowledge, or training. There is a need for a vision screening protocol that will help occupational therapists learn more about visual impairments in adults with an acquired brain injury (ABI) and feel more confident in their ability to identify them. This quality improvement capstone project was a feasibility study and consisted of a sample size of N = 6, utilizing a one group pretest-posttest …

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Biochemical Characterization Of Fsa1572 From Fervidibacter Sacchari, The First Hyperthermophilic Gh50 With Β-1, 4-Glucanase Activity, Jonathan Covington May 2023

Biochemical Characterization Of Fsa1572 From Fervidibacter Sacchari, The First Hyperthermophilic Gh50 With Β-1, 4-Glucanase Activity, Jonathan Covington

UNLV Theses, Dissertations, Professional Papers, and Capstones

The bacterium Fervidibacter sacchari is an aerobic hyperthermophile that catabolizes various polysaccharides and is the only cultivated member of the class Fervidibacteria within the phylum Armatimonadota. Among its glycoside hydrolase (GH) cache is an enzyme from GH family 50 (GH50), an understudied family with only 25 characterized representatives and two known activities from 1,518 predicted members in the Carbohydrate-Active EnZyme (CAZy) Database. Here, we expressed, purified, and functionally characterized an extracellular GH50 from F. sacchari called Fsa1572. Using colorimetric assays, we show it has novel β-1,4-glucanase activity and only weak agarose activity that is typical for GH50 enzymes. The purified …

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Long-Range Regulation By The Shigella Virulence Gene Regulator, Virb, Cody Cris May 2023

Long-Range Regulation By The Shigella Virulence Gene Regulator, Virb, Cody Cris

UNLV Theses, Dissertations, Professional Papers, and Capstones

Nucleoid-structuring proteins (NSPs) in bacterial cells can exert gene regulatory effects over great distances on DNA. This contrasts with the traditional view of bacterial transcriptional regulation, where transcription factors bind cis-acting regulatory sites proximal (<250 bp) to promoters to influence gene expression. In Shigella species, the histone-like nucleoid-structuring protein (H-NS) transcriptionally silences many genes on the large (~220 kb) virulence plasmid. During host colonization, however, silencing by H-NS is alleviated by the anti-silencer protein, VirB, which remodels the H-NS:DNA complex. This transcriptional anti-silencing is mediated by VirB:DNA interactions and the modulation of DNA supercoiling, which lead to the up-regulation of virulence genes. VirB is a central regulator of Shigella virulence, but the mechanistic basis for transcriptional regulation is incompletely characterized. Here, I focus on the potential for VirB to regulate transcription from remotely located DNA binding sites. Employing complementary in vivo approaches, I assessed the spatial stringency of the VirB binding site and elucidated how varying cellular VirB levels impacts regulation over different distances. I also evaluated how a molecular roadblock on DNA influences remote regulation by VirB. Additionally, I developed control tools to validate the ability of VirB to spread along DNA, an activity of VirB that putatively drives transcriptional regulation. These data are consistent with transcriptional anti-silencing being driven by VirB spreading along DNA. Overall, these findings highlight how VirB is not a conventional transcriptional regulator and broaden our perspective on transcriptional control in bacteria. Furthermore, this work contributes to our understanding of long-range gene regulatory effects, which are frequently overlooked and poorly characterized in bacteria.

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Desert Spring Prokaryotes And Benthic Macroinvertebrates: Geological And Ecological Controls, Ariel D. Friel May 2023

Desert Spring Prokaryotes And Benthic Macroinvertebrates: Geological And Ecological Controls, Ariel D. Friel

UNLV Theses, Dissertations, Professional Papers, and Capstones

Desert springs are aquatic oases, being considered among the most diverse and imperiled ecosystems on Earth. Despite the ecological significance and threatened status of desert springs, few studies have surveyed the microorganisms in these systems or their interactions with other community members. The primary goal of this dissertation was to describe the major controls influencing the community ecology of prokaryotic and BMI communities in cold- and moderate-temperature desert springs of the southern hydrographic Great Basin. Chapter 1 provides a broad overview of spring ecosystems and of each chapter included in this dissertation. Chapter 2 documents the first-ever, regional-scale survey of …

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New-R Intervention For Clients With Severe Mental Illness And Obesity: Grant Writing For Implementation Funds Supporting Occupational Therapy Interventions, Kaitlyn Hoffman May 2023

New-R Intervention For Clients With Severe Mental Illness And Obesity: Grant Writing For Implementation Funds Supporting Occupational Therapy Interventions, Kaitlyn Hoffman

UNLV Theses, Dissertations, Professional Papers, and Capstones

Increasing numbers of people suffer from obesity and severe mental illness co-morbidly. If these conditions remain untreated, they can harm an individual's health and well-being. Unfortunately, there are very few programs currently available that target both management and improvement of these conditions simultaneously. Even so, despite the lack of programming options, it must be noted that the NEW-R program strives to reach those goals, although there hasn't been an abundance of literature supporting the effectiveness of this program. This poses a concern for occupational therapy practitioners who hope to assist their clients in managing these conditions as occupational therapy treatments …

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Cell-Specific Mechanisms Of Microrna Modulation Of Anoctamin-1 (Ano1) In Oral Cancer, Daniel Hou May 2023

Cell-Specific Mechanisms Of Microrna Modulation Of Anoctamin-1 (Ano1) In Oral Cancer, Daniel Hou

UNLV Theses, Dissertations, Professional Papers, and Capstones

Anoctamin-1 (ANO1) is a calcium-gated chloride ion channel with multiple physiological roles, including transepithelial ion transport, smooth muscle contraction, salivary secretion, and nociception. Recently, ANO1 has been identified to play a key role in cancer progression. ANO1 is overexpressed in different types of cancer, including oral cancer. ANO1 overexpression is commonly the result of ANO1 gene amplification on the chromosome 11q13 locus. In cancer cells, ANO1 upregulation has been reported to promote cell proliferation and migration of tumor cells, whereas ANO1 downregulation induces apoptosis through multiple signaling pathways. As such, ANO1 is now considered a useful biomarker for cancer progression …

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Flying The Unfriendly Skies: How Flight Crew Members Perceived And Communicatively Constructed The Emotional Labor Of Their Positions Throughout The Covid-19 Pandemic, William B.L. Ingelson May 2023

Flying The Unfriendly Skies: How Flight Crew Members Perceived And Communicatively Constructed The Emotional Labor Of Their Positions Throughout The Covid-19 Pandemic, William B.L. Ingelson

UNLV Theses, Dissertations, Professional Papers, and Capstones

The COVID-19 pandemic brought about unprecedented levels of volatility to all hospitality industries, including aviation. Such levels of volatility have highlighted a need to understand the effects of the COVID-19 pandemic on flight crew communication. This study explores the impact of the COVID-19 pandemic on intra-flight crew communication and the emotional labor flight crew members experienced. Utilizing the theoretical frameworks of facework, politeness theory, emotional labor, and emotional management, this study examined how participants communicated through the tumult of this time period. This study discovered heavy usage of surface acting and increased levels of emotional labor through 28 qualitative interviews …

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A Light Gradient Boosting Machine-Enabled Model To Predict Radiation-Induced Toxicities In Cancer Patients Receiving Chemoradiotherapy, Zirui Jiang May 2023

A Light Gradient Boosting Machine-Enabled Model To Predict Radiation-Induced Toxicities In Cancer Patients Receiving Chemoradiotherapy, Zirui Jiang

UNLV Theses, Dissertations, Professional Papers, and Capstones

The objective of this study was to develop a predictive model that utilizes a Light Gradient Boosting Machine (Light-GBM) to accurately assess the risk of severe radiation-induced toxicities in cancer patients undergoing chemoradiotherapy. The occurrence of these toxicities can have a substantial impact on the patients' quality of life. The Light-GBM model using clinical feature alone or integrating radiomic features extracted from computed tomography (CT) images used in treatment planning with clinical features can enhance the accuracy of early prediction.The study included 179 breast cancer patients and 223 patients with nasopharynx cancer who were treated with both radiotherapy and chemotherapy …

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“But What About Me?”: How Memorable Messages Received During Catholic Sex Education Contribute To The Development Of Identity Gaps, Hannah Novak May 2023

“But What About Me?”: How Memorable Messages Received During Catholic Sex Education Contribute To The Development Of Identity Gaps, Hannah Novak

UNLV Theses, Dissertations, Professional Papers, and Capstones

Sex education in the United States is a widely debated issue. Christians have supported abstinence-based education in the United States for decades (Dent & Maloney, 2017). There are numerous studies that have examined how abstinence sex education is faulty, specifically religious sex education (Judge, 2020; Levand & Ross, 2021; Rasmussen, 2010; Reuther, 2008). Studies found that religious sex education led to mental, physical, and emotional health disparities in the United States (Baker et al., 2015; Nelson et al., 2017). This study explored how memorable messages received in Catholic sex education led to the formation of identity gaps in participants' lives. …

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A Comparison Of The Traditional Chinese Vocal Style And Western Bel Canto Singing, Jie Pan May 2023

A Comparison Of The Traditional Chinese Vocal Style And Western Bel Canto Singing, Jie Pan

UNLV Theses, Dissertations, Professional Papers, and Capstones

This document presents a comparative study of the traditional Chinese vocal style which was primarily developed in the 20th century and Western bel canto singing practiced from the 19th century onward. It provides background information on their historical contexts and thorough analysis of various aspects in their pedagogical approaches. Through the examination of important literature, and the assessment of their acoustic properties, this project demonstrates the similarities and differences between these two vocal styles: 1) both singing styles require their singers to master the art of breathing to maintain a steady flow of air while keeping the support low; 2) …

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Increasing Occupational Therapy Practitioners’ And Students’ Perceived Self-Confidence And Knowledge In Pelvic Floor Disorders Specifically In Stress Urinary Incontinence, Sarah L. Pond May 2023

Increasing Occupational Therapy Practitioners’ And Students’ Perceived Self-Confidence And Knowledge In Pelvic Floor Disorders Specifically In Stress Urinary Incontinence, Sarah L. Pond

UNLV Theses, Dissertations, Professional Papers, and Capstones

This quality improvement project used a pre-and post-survey to explore the effectiveness of an online learning module and determine if the approach increased occupation therapy practitioners' and occupational therapy students' perceived self-confidence and knowledge in pelvic floor therapy.The course was a pre-recorded module launched on Teachable. Participants were recruited through an online flyer posted on social media and email. The online module was open for 27 days, with 130 respondents in the pre-assessment and 99 who completed the module and the post-assessment. The use of an open-ended question was used to obtain qualitative data regarding the online course. The online …

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Polish Nationalism And The Flute Sonatina: The Influence Of Folklore On Inter-War Composers Tadeusz Kassern, Wojciech Kilar And Aleksander Tansman, Marta Plominska May 2023

Polish Nationalism And The Flute Sonatina: The Influence Of Folklore On Inter-War Composers Tadeusz Kassern, Wojciech Kilar And Aleksander Tansman, Marta Plominska

UNLV Theses, Dissertations, Professional Papers, and Capstones

The music composed during World War II has been the subject of many concert programs in the classical music world. The music offers a poignant look into the human condition during a worldwide crisis and serves to capture the sentiments of the various cultures of the region during this time. One compelling musical perspective is from Polish nationals during WWII, who maintained a particularly fervent grasp on their national culture even while many were displaced and suppressed by the Nazi regime. This document will look at the flute compositions of three Polish nationals who wrote during this era, focusing on …

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Gendered Bodies, Engendered Lives: Bioarchaeological Exploration Of The Intersectionality Of Gender, Health, And Trauma At Turkey Creek Pueblo, Arizona (Ad 1225-1286), Claira Elizabeth Ralston May 2023

Gendered Bodies, Engendered Lives: Bioarchaeological Exploration Of The Intersectionality Of Gender, Health, And Trauma At Turkey Creek Pueblo, Arizona (Ad 1225-1286), Claira Elizabeth Ralston

UNLV Theses, Dissertations, Professional Papers, and Capstones

This dissertation examines the relationships between sex, gender, and health at Turkey Creek Pueblo (AD 1225-1286), the earliest aggregated Pueblo community in the Point of Pines region of east central Arizona, to better understand their roles in producing differential health outcomes. To gain a view of these interactions, I use osteological, mortuary, and ethnohistoric data to explore how gender, as a social institution, informed divisions of labor and experiences with traumatic injury at Turkey Creek Pueblo, because this site was occupied during a socially dynamic and important period in the pre-contact American Southwest. Using these data, I explore how sex, …

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Co-Teaching At The Secondary Level: A Qualitative Study Of Perceptions, Implementations, & Constructivism, Anne-Marie Raskin May 2023

Co-Teaching At The Secondary Level: A Qualitative Study Of Perceptions, Implementations, & Constructivism, Anne-Marie Raskin

UNLV Theses, Dissertations, Professional Papers, and Capstones

The intended outcome of this qualitative study was to provide valuable information that could improve pre-service teacher education programs and inclusion professional development programs, as well as help guide school-based administrators on how to better support co-teaching at the secondary level. In order to accomplish the outcome, the purpose of the study was twofold: (1) to examine secondary co-teachers’ perceptions toward their preparedness to co-teach in an inclusion classroom based on their pre-service training, overall professional development, and administrative support; and (2) to explore how well secondary co-teachers practice constructivist-oriented co-teaching. The research questions included: (1) How do secondary co-teachers …

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Acute Effects Of Post-Activation Potentiation On Increasing Bat Velocity In Competitive Baseball Players: A Case Series, Phillipp Yu, John Macdonald, Katrina Myers May 2023

Acute Effects Of Post-Activation Potentiation On Increasing Bat Velocity In Competitive Baseball Players: A Case Series, Phillipp Yu, John Macdonald, Katrina Myers

UNLV Theses, Dissertations, Professional Papers, and Capstones

Purpose/Hypothesis: Hitting a baseball is widely considered as one of the most difficult motor tasks in sports. It requires quick decision-making and coordinated activation of key muscles to produce a precise and rapid swing. Higher bat velocity has been shown to be associated with offensive performance of baseball players, as greater bat velocities permit more time to be spent analyzing a pitch and can lead to greater outcomes when a ball is hit in play. Baseball players and coaches have traditionally sought on-deck routines to temporarily enhance bat velocity before an at-bat, primarily swinging a weight bat. However, this method …

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Development Of A Post-Op Transgender Care Program For Acute Occupational Therapy Practice, Marieliz Llanos May 2023

Development Of A Post-Op Transgender Care Program For Acute Occupational Therapy Practice, Marieliz Llanos

UNLV Theses, Dissertations, Professional Papers, and Capstones

Transgender people have experienced adverse health outcomes and barriers to care, ranging from the inability to provide a safe environment for inclusive and equitable care, lack of social support, and limited cultural competency and healthcare provider training. Furthermore, the scarcity of research in transgender care within the field of occupational therapy contributes to the disconnect between the needs of the transgender and gender-diverse (TGD) populations and the lack of preparedness in addressing the occupational performance deficits of transgender clients and individuals undergoing the transitioning process contribute to disparities that are reflected deeply in the experiences of these individuals. In the …

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Promoting The Benefits Of An Occupational Therapy Health And Wellness Coaching Program For Adults Living With Chronic Illnesses And Their Self-Management, Natasha Findley May 2023

Promoting The Benefits Of An Occupational Therapy Health And Wellness Coaching Program For Adults Living With Chronic Illnesses And Their Self-Management, Natasha Findley

UNLV Theses, Dissertations, Professional Papers, and Capstones

Improved health-related outcomes for individuals 18 years or older living with a chronic condition or multiple chronic conditions can be positively impacted by health and wellness coaching. The primary purpose of this capstone project was to develop a community-based health and wellness coaching program with an occupational therapy-based approach to empower and motivate individuals in discovering their strategies, make healthier choices, and be accountable for their self-management (medication adherence, physical activity, sleep hygiene, healthy eating, stress management, and pain management). According to the American Occupational Therapy Association (2015), occupational therapy focuses on promoting health and wellness by enabling clients to …

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The Development Of A Pilot Program Related To The Application Of High-Intensity In Occupational Therapy, Philip Lamoreaux May 2023

The Development Of A Pilot Program Related To The Application Of High-Intensity In Occupational Therapy, Philip Lamoreaux

UNLV Theses, Dissertations, Professional Papers, and Capstones

Among the many diagnoses affecting an individual’s ability to participate in occupation, strokes are among the most common (Tsao et al., 2022). With the decrease in mortality rates by 35.8% due to advancements in medicine (Wolf & Nilsen, 2015), there is a need to remediate, adapt, or modify the life-changing impairments associated with stroke. The most significant evidence for motor learning, which is associated with regaining function, is in relation to high-intensity training in the context of ambulation (Middleton et al., 2015; Moore et al., 2020). By utilizing the neural plastic principles of repetition, salience, task-specificity, and intensity, an individual …

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With Liberty And Justice For All? Examining The Role Of Hegemony Throughout U.S. History In Influencing Multilingual Discriminatory Practices Within Academic Policies And Legislation, Katie Olivia Wallen May 2023

With Liberty And Justice For All? Examining The Role Of Hegemony Throughout U.S. History In Influencing Multilingual Discriminatory Practices Within Academic Policies And Legislation, Katie Olivia Wallen

Electronic Theses, Projects, and Dissertations

The discriminatory systems that multidialectal and multilingual users experience in the United States have historically influenced how educators and policymakers approach the construction of academic policies and curricula. These hegemonic systems shape and inform linguistic attitudes that have continually imparted prejudice against non-White language users, resulting in a gap of inclusivity for diverse student populations. Research aiming to address this gap has traditionally approached linguistic discrimination by specifically examining the use of dialects or non-English languages in the classroom rather than the underlying systems that affect both multidialectal and multilingual users similarly. Through the lens of policy and social construct …

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Transforming Black Students’ Higher Education Experiences And Lives: A Proposal For The Csu, Don Lundy May 2023

Transforming Black Students’ Higher Education Experiences And Lives: A Proposal For The Csu, Don Lundy

Electronic Theses, Projects, and Dissertations

For decades, a racial “achievement gap” has persisted in U.S. higher education. Specifically, White students have outperformed Black students on a number of indicators, including college admissions, standardized test scores, and graduation rates. This graduate project considers several explanations for this persistent inequity. The root of the problem, it argues, is U.S. higher education’s history of racism and exclusion and the oversaturation of whiteness in these institutions. In other words, U.S. higher education was built for and continues to serve White students at the expense of Black students. Historically Black Colleges and Universities (HBCUs) show us that when whiteness is …

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Teachers’ Perceptions Of The Effectiveness And Use Of Behavior Management Strategies, Lucia Mariah Smith-Menzies May 2023

Teachers’ Perceptions Of The Effectiveness And Use Of Behavior Management Strategies, Lucia Mariah Smith-Menzies

Electronic Theses, Projects, and Dissertations

Research indicates that punitive school discipline practices are ineffective and continue to marginalize students of color and students with disabilities. Historical and societal conceptions of punishment offer insight as to why these punitive practices persist. The legacies of school discipline and how teachers understand the role of punishment have implications for which behavior management strategies are employed in the classroom. This study examined the relationship between teacher perceptions of the effectiveness and use of behavior management strategies, their opinions of the utility of punishment, and their understanding of the outcomes of punishment. Descriptive analyses, an analysis of variance and correlational …

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Reverse Mathematics Of Ramsey's Theorem, Nikolay Maslov May 2023

Reverse Mathematics Of Ramsey's Theorem, Nikolay Maslov

Electronic Theses, Projects, and Dissertations

Reverse mathematics aims to determine which set theoretic axioms are necessary to prove the theorems outside of the set theory. Since the 1970’s, there has been an interest in applying reverse mathematics to study combinatorial principles like Ramsey’s theorem to analyze its strength and relation to other theorems. Ramsey’s theorem for pairs states that for any infinite complete graph with a finite coloring on edges, there is an infinite subset of nodes all of whose edges share one color. In this thesis, we introduce the fundamental terminology and techniques for reverse mathematics, and demonstrate their use in proving Kőnig's lemma …

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The Investigation Of Knowledge And Practice Of Child Welfare Workers Providing Case Management To Children With Disabilities, Giselle Cruz May 2023

The Investigation Of Knowledge And Practice Of Child Welfare Workers Providing Case Management To Children With Disabilities, Giselle Cruz

Electronic Theses, Projects, and Dissertations

This study examined the knowledge and practice of child welfare workers providing case management to children with disabilities. The study explores three areas of interest with regard to child welfare workers’ knowledge and practice: identification of disabilities, identification of proper services and resources for children with disabilities, and collaboration among multidisciplinary team members. Past literature has focused on the challenges child welfare workers experience when providing case management services to children with disabilities. This study used an exploratory quantitative design, using a cross-sectional survey to collect data from participants from two Children and Family Service Agencies. The results of this …

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Preserving Placement For Children With Behavioral Issues: A Qualitative Study Of Child Welfare Social Workers In The United States, Jessica Katelyn Quin, Tara Belle Beam May 2023

Preserving Placement For Children With Behavioral Issues: A Qualitative Study Of Child Welfare Social Workers In The United States, Jessica Katelyn Quin, Tara Belle Beam

Electronic Theses, Projects, and Dissertations

Children in foster care experience complex trauma that puts them at risk for frequent placement changes. Such changes can have a negative impact on child welfare social workers’ job performance. This exploratory study identified areas that need to be addressed for social workers to meet expectations for placement preservation. More specifically, this qualitative study explored the perceptions of child welfare social workers’ competence and confidence regarding placement stability for foster children who have behavioral issues. Interviews were conducted with seven child welfare workers across three states: California, Nevada, and Texas (N = 7). Thematic analysis procedures revealed the following six …

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