Digital Commons Network^™

Juggling A Devil-Stick: Hybrid Orbit Stabilization Using The Impulse Controlled Poincaré Map, Nilay Kant, Ranjan Mukherjee

Mechanical and Aerospace Engineering Faculty Research & Creative Works

The control design for juggling a devil-stick between two symmetric configurations is proposed. Impulsive forces are applied to the devil-stick at the two configurations; and impulse of the force and its point of application are modeled as the control inputs. The dynamics of the devil-stick is described by a single return Poincaré map, and it is shown that the control objective of juggling can be achieved by stabilizing a hybrid orbit. The impulse controlled Poincaré map (ICPM) approach, recently proposed for stabilization of continuous-time orbits of underactuated systems, is extended to achieve asymptotic stabilization of the hybrid orbit. The applicability …

An Asian Case Of Combined 17Α-Hydroxylase/17,20-Lyase Deficiency Due To Homozygous Pr96q Mutation: A Case Report And Review Of The Literature, Qian Liao, Rufei Shen, Mingyu Liao, Chenxi Ran, Ling Zhou, Yuling Zhang, Guiliang Peng, Zheng Sun, Hongting Zheng, Min Long

Center on Aging Staff Publications

Background: Combined 17α-hydroxylase/17,20-lyase deficiency (17-OHD) is a very rare form of congenital adrenal hyperplasia (CAH) caused by mutations in the CYP17A1 gene. Almost 100 different mutations of the CYP17A1 gene have been reported, including p.R96Q mutation, but no case of p.R96Q mutation has been described in Asian populations.

Case presentation: We describe a 22-year-old female patient of 46,XY karyotype, who presented with pseudohermaphrodism, primary amenorrhea, underdeveloped secondary sexual characteristics, delayed epiphyseal healing, hypertension, and hypokalemia. The diagnosis of 17-OHD was reached by measurement of steroid hormones and abdominal CT scan and confirmed by genetic sequencing, which revealed a homozygous p.R96Q …

Direct Numerical Simulation Of Acoustic Disturbances In A Hypersonic Two-Dimensional Nozzle Configuration, Nathaniel Hildebrand, Meelan M. Choudhari, Cole P. Deegan, Junji Huang, Lian Duan

Mechanical and Aerospace Engineering Faculty Research & Creative Works

Direct numerical simulations (DNS) are performed to study acoustic radiation in a quasi-two-dimensional nozzle with two independents spatially evolving turbulent boundary layers with an edge Mach number of 6. The emphasis of this work is to compare the radiated pressure fluctuations in a geometrically confined environment with those radiated from a single wall in an unconfined setting. The boundary-layer profile of the rms pressure fluctuation scaled by the mean shear stress at the wall is found to be in good agreement with prior flat-plate calculations at similar conditions. However, the normalized rms pressure fluctuation within the freestream p region is …

Neural Network Attitude Control System Design For The Wallops Arc-Second Pointer, Pavel Galchenko, Henry J. Pernicka

Mechanical and Aerospace Engineering Faculty Research & Creative Works

No abstract provided.

Quantification Of Behavioral Deficits In Developing Mice With Dystonic Behaviors., Meike E Van Der Heijden, Jason S Gill, Alejandro G Rey Hipolito, Luis E Salazar Leon, Roy V Sillitoe

Duncan NRI Faculty and Staff Publications

Converging evidence from structural imaging studies in patients, the function of dystonia-causing genes, and the comorbidity of neuronal and behavioral defects all suggest that pediatric-onset dystonia is a neurodevelopmental disorder. However, to fully appreciate the contribution of altered development to dystonia, a mechanistic understanding of how networks become dysfunctional is required for early-onset dystonia. One current hurdle is that many dystonia animal models are ideally suited for studying adult phenotypes, as the neurodevelopmental features can be subtle or are complicated by broad developmental deficits. Furthermore, most assays that are used to measure dystonia are not suited for developing postnatal mice. …

Epithelial Morphogenesis In The Drosophila Egg Chamber Requires Parvin And Ilk, Athina Keramidioti, Evgenia Golegou, Eleni Psarra, Nikolaos Paschalidis, Konstantina Kalodimou, Shinya Yamamoto, Christos Delidakis, Katerina M Vakaloglou, Christos G Zervas

Duncan NRI Faculty and Staff Publications

Integrins are the major family of transmembrane proteins that mediate cell-matrix adhesion and have a critical role in epithelial morphogenesis. Integrin function largely depends on the indirect connection of the integrin cytoplasmic tail to the actin cytoskeleton through an intracellular protein network, the integrin adhesome. What is currently unknown is the role of individual integrin adhesome components in epithelia dynamic reorganization. Drosophila egg chamber consists of the oocyte encircled by a monolayer of somatic follicle epithelial cells that undergo specific cell shape changes. Egg chamber morphogenesis depends on a developmental array of cell-cell and cell-matrix signalling events. Recent elegant work …

Functional Studies Of Genetic Variants Associated With Human Diseases In Notch Signaling-Related Genes Using Drosophila, Sheng-An Yang, Jose L Salazar, David Li-Kroeger, Shinya Yamamoto

Duncan NRI Faculty and Staff Publications

Rare variants in the many genes related to Notch signaling cause diverse Mendelian diseases that affect myriad organ systems. In addition, genome- and exome-wide association studies have linked common and rare variants in Notch-related genes to common diseases and phenotypic traits. Moreover, somatic mutations in these genes have been observed in many types of cancer, some of which are classified as oncogenic and others as tumor suppressive. While functional characterization of some of these variants has been performed through experimental studies, the number of ‘variants of unknown significance’ identified in patients with diverse conditions keeps increasing as high-throughput sequencing technologies …

Emerging Roles Of Alternative Cleavage And Polyadenylation (Apa) In Human Disease, Prakash Dharmalingam, Rajasekaran Mahalingam, Hari Krishna Yalamanchili, Tingting Weng, Harry Karmouty-Quintana, Ashrith Guha, Rajarajan A Thandavarayan

Duncan NRI Faculty and Staff Publications

In the messenger RNA (mRNA) maturation process, the 3'-end of pre-mRNA is cleaved and a poly(A) sequence is added, this is an important determinant of mRNA stability and its cellular functions. More than 60%-70% of human genes have three or more polyadenylation (APA) sites and can be cleaved at different sites, generating mRNA transcripts of varying lengths. This phenomenon is termed as alternative cleavage and polyadenylation (APA) and it plays role in key biological processes like gene regulation, cell proliferation, senescence, and also in various human diseases. Loss of regulatory microRNA binding sites and interactions with RNA-binding proteins leading to …

A Framework For Near-Real Time Monitoring Of Diversity Patterns Based On Indirect Remote Sensing, With An Application In The Brazilian Atlantic Rainforest, Andrea Paz, Thiago S. Silva, Ana C. Carnaval

Publications and Research

Monitoring biodiversity change is key to effective conservation policy. While it is difficult to establish in situ biodiversity monitoring programs at broad geographical scales, remote sensing advances allow for near-real time Earth observations that may help with this goal. We combine periodical and freely available remote sensing information describing temperature and precipitation with curated biological information from several groups of animals and plants in the Brazilian Atlantic rainforest to design an indirect remote sensing framework that monitors potential loss and gain of biodiversity in near-real time. Using data from biological collections and information from repeated field inventories, we demonstrate that …

Relationship Between Intergenerational Mobility (Igm) And Economic Growth: Evidence From Cross-Country Data, Swapnil Landge

Publications and Research

Inequality of opportunity (IGM) is a major cause of inequality of opportunity in many countries. However, the impact of IGM on economic growth has not been fully explored. In this research project, I first replicated and extended the IMF working paper titled IGM, IGM, and Economic Growth’ by Shekhar Aiyar and Christian Ebeke (2019), which explored the relationship between income inequality and economic growth, utilizing various measures of intergenerational mobility, to confirm that the adverse impact of income inequality on growth is more pronounced when IGM is lower. Then, I used the latest Gini dataset (All the Ginis’) compiled by …

Non-Physician’S Challenges In Sexual And Reproductive Health Care Provision For Women Of Reproductive Age With Cancer: A Scoping Review Of Barriers And Facilitators, Qi Chen, Emma Carpenter, Kari White

Publications and Research

Purpose: The American Society of Clinical Oncology Clinical Practice guidelines recommend that non-physicians such as nurses, social workers, psychologists should be prepared to discuss fertility and sexual concerns with patients. However, literature showed that the utilization rate of sexual and reproductive care for women with cancer remained low. We conducted a scoping review to describe non-physicians’ roles, barriers and facilitators providing sexual and reproductive health (SRH) care to women of reproductive age with cancer.

Methods: We searched six databases for articles that met the following criteria: 1) English-language; 2) original research; 3) non-physician providers; 4) women with cancer under …

For Critical Language Awareness And Against The “Exclusive-Use-Of-The-Target-Language” Myth: The Effects Of Sociolinguistic Content In English In An Elementary Spanish Classroom, Beatriz Lado, José Del Valle

Publications and Research

Scholars have advocated for critical approaches to language education (e.g., Del Valle, 2014; Leeman & Serafini, 2016), including those that promote the development of Critical Language Awareness, CLA (e.g., Alim, 2010; Leeman, 2018). The goal is to develop students’ critical knowledge of the cultural, political, and social dimensions of language. To this end, Del Valle (2014) suggests the inclusion of language-related content units taught in the first or shared language from the early stages of language learning. This proposal entails revising strong beliefs such as the use of the non-target language in the new language classroom. The purpose of our …

Perceptions Of School Safety: A Multiple Case Study Of School Resource Officers In A Rural Setting In The Southeastern United States, Stephen Lance Britt

Doctoral Dissertations and Projects

The purpose of this qualitative multiple case study was to examine school resource officers’ (SROs) perceptions of school safety assigned to 12 schools within rural communities located in the Southeast region of the United States. For this study, school safety was defined as the overall safety and well-being of the school environment. The perceptions of the SROs assigned to selected schools were examined using this definition of school safety. All aspects of safety within the schools were the focus of the study and were not limited to any specific areas of emphasis. This study utilized a purposeful sampling of 12 …

Premarital Counseling And Christianity: A Composition Of Couples Intuition And Understanding As It Relates To Marital Satisfaction, Sheila Delores Salley

Doctoral Dissertations and Projects

Increasing divorce rates in the United States of America have resulted in Premarital Counseling (PMC) gaining grave popularity over the last couple of decades. There has been a proliferation of premarital counseling programs in the United States of America since the 1930s with a thrust toward building and sustaining satisfying marriages. Traditional premarital counseling programs focus on ensuring satisfaction once the couple is married; however, there is a significant gap in researching the impact of incorporating Christian values as a means of therapeutic intervention. This study involved eight Christian, African American, heterosexual couples who received Christian-based PMC (CPMC) and have …

The Impact Of Extracurricular Activities And Attendance On Student Achievement At A Mississippi Community College, Amanda Hyde Marbury

Doctoral Dissertations and Projects

The purpose of this quantitative study was to determine the impact of extracurricular activities and class attendance on student achievement in science courses at a Mississippi community college. Public colleges are dependent on state funding for survival, with one main criterion for determining that funding being the number of students enrolled. Students need to be successful in courses to keep up the retention and enrollment rates. Student success is potentially linked to class attendance and student involvement in extracurricular activities. Schools need to look at factors that might be affecting students’ performance in the classroom such as participation in extracurricular …

Using Heidisongs Music As An Instructional Tool In The Elementary School Classroom: A Case Study, Leia Denise Jobe

Doctoral Dissertations and Projects

The purpose of this qualitative multiple case study is to understand how teachers use HeidiSongs music as an instructional tool in the elementary school classroom. HeidiSongs uses multisensory structured language education to teach by engaging multiple senses simultaneously to increase retention. The theories guiding this study include Gardner’s theory of multiple intelligences, which involves kinesthetic intelligences among other types of intelligences, and Krashen’s theory of second language acquisition. HeidiSongs uses both musical and kinesthetic activities to enhance literacy. The central research question focused on how teachers use HeidiSongs music as an instructional tool in the elementary school classroom. The sub-questions …

A Phenomenological Study Exploring The Client And Stylist Interaction As A Culturally Specific Form Of Coping With Stress For Black Women In The United States, Nicole Michelle Holden

Doctoral Dissertations and Projects

The purpose of this study is to describe the experience of Black women who visit the salon regularly in the United States. This study is constructed around the culturally intimate relationship of the stylist-client interaction in the Black community as a historical coping mechanism in which Black women utilize for stress and life challenges rather than seek professional mental health services. Although COVID-19 continues to mount a significant mortality rate and financial hardships, its disproportionate effects on communities of color will have lasting implications on their mental health. The need for mental health services has increased due to the mental …

Using The “Teach-Back” Education Method With Type Ii Diabetic Patients And Health Literacy: An Integrative Review, Sonia Romero

Doctoral Dissertations and Projects

Effective communication provides healthcare providers and patients an opportunity to address issues or concerns. Effective communication is linked to improving patient outcomes. Patients with low health literacy are unable to understand, read, comprehend, or discuss the information provided by their healthcare providers. Poor health literacy directly affects disease management and leads to poor patient outcomes. The increase rate of obesity worldwide has quadrupled, the unhealthy lifestyle is one of the risk factors causing adults to develop Type II Diabetes Mellitus (T2DM). T2DM is a condition in where the pancreas does not produce sufficient insulin to absorb the glucose consumed. T2DM …

A Model For Identifying, Developing, And Installing Elders In The Church: The Path Family Church Has Taken, Stephen Harrison

Doctoral Dissertations and Projects

The problem is that Family Church does not identify, develop, and install their potential elders well. This intervention research project addressed this problem by establishing prerequisites for elder identification, a seven-week elder training workbook, and guidelines for installation after the research project. Current elders at Family Church completed a questionnaire, participated in case studies, and evaluated their intervention project in a focus group to establish an effective method of identifying, developing, and installing potential elders. This intervention research project produced a list of prerequisites for identifying potential elders, a seven-week elder training manual, and clear guidelines for ordaining elders at …

Improving Transition Services For Students With Intellectual Disability At Giles County High School, Catherine Claire Paul

Doctoral Dissertations and Projects

The purpose of this project was to improve transition services available to high school students with intellectual disabilities in Giles County, Tennessee. The problem was there is a lack of consistent transition planning in Giles County, Tennessee. The central research question was, “How can transition services for students with intellectual disabilities be improved at Giles County High School in Giles County, Tennessee?” This project was conducted through interviews with administrators and educators, surveys of parents, and a document analysis of available information in Giles County for transition services. The information was then coded and analyzed for a mixed-methods research design. …

The Student Voice: Perception Of Students’ Representation Of Themselves In The Secondary Band Curriculum, Lori Schwartz Reichl

Doctoral Dissertations and Projects

As the United States becomes more socially and culturally diverse, there is a greater need for diversity and inclusivity in music education. This goal can be challenging as the classical traditions of westernized music often dominate music classrooms and performing ensembles. The secondary band curriculum is no exception. Despite numerous sources stating that students must perceive a representation of themselves in an educational curriculum, secondary band students have yet to be surveyed about their perceptions of the music curriculum in which they are engaging daily. Educators must understand if students see themselves reflected in the curriculum. This reflection can be …

Small Suburbs, Large Lots: How The Scale Of Land-Use Regulation Affects Housing Affordability, Equity, And The Climate, Eric Biber, Giulia Gualco-Nelson, Nicholas Marantz, Moira O’Neill

Utah Law Review

Housing costs in major coastal metropolitan areas nationwide have skyrocketed, impacting people, the economy, and the environment. Landuse regulation, controlled primarily at the local level, plays a major role in determining housing production. In response to this mounting housing crisis, scholars, policymakers, and commentators are debating whether greater state involvement in local land-use decision-making is the best path forward.

We argue here that there are good reasons to believe that continuing on the current path—with local control of land-use regulation as it is— will lead to persistent underproduction of housing. The benefits of housing production are primarily regional, including improved …

Market Myopia’S Climate Bubble, Madison Condon

Utah Law Review

A growing number of financial institutions, ranging from BlackRock to the Bank of England, have warned that markets may not be accurately incorporating climate change-related risks into asset prices. This Article seeks to explain how this mispricing occurs, drawing from scholarship on corporate governance and the mechanisms of market (in)efficiency. Market actors: (1) Lack the fine-grained asset-level data they need in order to assess risk exposure; (2) Continue to rely on outdated means of assessing risk; (3) Have misaligned incentives resulting in climate-specific agency costs; (4) Have myopic biases exacerbated by climate change misinformation; and (5) Are impeded by captured …

Information As Power: Democratizing Environmental Data, Annie Brett

Utah Law Review

Environmental data systems have largely escaped scrutiny in the past decades. But these systems are the foundations for evaluating environmental priorities, making management decisions, and deciding which perspectives to value. Information is the foundation of effective regulation. The decisions regulators make about gathering, assimilating, and sharing information are, in many cases, determinative of the outcomes they reach. This is certainly true in the case of the environment.

This paper looks at how current environmental regulation has created data systems that undermine scientific legitimacy and systematically prevent stakeholder participation in environmental decision-making. These data systems concentrate power within federal and state …

Constitutional Authority, Common Resources, And The Climate, Anthony Moffa

Utah Law Review

History, text, and precedent reveal an understudied and underutilized source of constitutional authority for environmental protection—the Property Clause of Article IV, Section 3. The Clause vests Congress with the “Power to dispose of and make all needful Rules and Regulations respecting the Territory or other Property belonging to the United States.” This work re-examines these words, the context in which they were written, and the limited judicial decisions interpreting them with an eye towards increased congressional reliance on the Property Clause in the face of daunting threats to our natural environment. Much prior scholarly explanation of the Property Clause focused …

A Sand County Tax Shelter: Syndicated Conservation Easements And Their Toll On The American Taxpayer, Jimmy Godin

Utah Law Review

The conservation easement is a powerful tool for conserving private land in the United States and beyond. Among the many incentives for encouraging conservation easement donations are tax deductions, which largely depend on the conservation value of the donated land. But groups of wealthy taxpayers, accountants, attorneys, and appraisers are manipulating the conservation easement tax framework and receiving large tax deductions for conservation easements that are practically worthless in a conservation sense—transactions known as 'syndicated conservation easements.' Syndicated conservation easements have generated substantial controversy, in part because they cost American taxpayers billions of tax dollars annually. While the Internal Revenue …

High-Quality Reconstruction Of China’S Natural Streamflow, Chiyuan Miao, Jiaojiao Gou, Bojie Fu, Qiuhong Tang, Q Duan, Z Chen, Huimin Lei, J Chen, J Guo, Alistair G.L. Borthwick, Wenfeng Ding, X Duan, Yungang Li, Dongxian Kong, X Guo, Jingwen Wu

School of Engineering, Computing and Mathematics

No abstract provided.

Toolkit Of Methods For Feminist Participatory Action Research: Empowering Women, Transforming Systems, Trimita Chakma, Naomi Joy Godden, Kavita Naidu

Research outputs 2022 to 2026

This Toolkit was developed following a series of training workshops on Feminist Participatory Action Research (FPAR) concepts and methods with Oxfam Cambodia’s Inclusion Project 2 (IP2) partners from Lao, Myanmar, Cambodia, Thailand and Vietnam. The training provided targeted capacity support and technical assistance to the IP2 partners to develop gender-responsive advocacy activities on water governance in the Mekong region.

This Toolkit was developed to provide guidance to IP2 partners on how to use FPAR methods in their ongoing activities and advocacy. However, FPAR is a process and is not issue-specific. As such, the Toolkit can also be used by communities, …

Magnetic, Optical And Phase Transformation Properties Of Fe And Co Doped Vo2(A) Nanobelts, Ss Saeidi, B Vaseghi, G Rezaei, H Khajehsharifi, D Jenkins

School of Engineering, Computing and Mathematics

In this work, the effects of Fe and Co dopants on the optical bandgap and structural, morphological, and magnetic properties of VO2(A) nanobelts with rectangular cross-sections were studied. The optimized hydrothermal method with proper parameters was used to synthesize the samples. The XRD analyses show that the hydrothermal method promotes the formation of VO2(B) rather than the usual VO2(A) and causes the tetragonal-monoclinic transformation in VO2. Furthermore, expanding the VO2 lattice constant by dopants reveals that Fe3+ and Co2+ are successfully substituted into the lattice sites of V4+. Also, obtained results indicate the optical band gap increment with dopants and …

Mixture Toxicity Of Tio2 Nps And Tetracycline At Two Trophic Levels In The Marine Ecosystem: Chlorella Sp. And Artemia Salina, V Thiagarajan, R Seenivasan, D Jenkins, N Chandrasekaran, A Mukherjee

School of Engineering, Computing and Mathematics

No abstract provided.