Digital Commons Network^™

Accelerated Controller Tuning For Wind Turbines Under Multiple Hazards, Aly Mousaad Aly, Milad Rezaee

Faculty Publications

During their lifecycle, wind turbines can be subjected to multiple hazard loads, such as high-intensity wind, earthquake, wave, and mechanical unbalance. Excessive vibrations, due to these loads, can have detrimental effects on energy production, structural lifecycle, and the initial cost of wind turbines. Vibration control by various means, such as passive, active, and semi-active control systems provide crucial solutions to these issues. We developed a novel control theory that enables semi-active controller tuning under the complex structural behavior and inherent system nonlinearity. The proposed theory enables the evaluation of semi-active controllers’ performance of multi-degrees-of-freedom systems, without the need for time-consuming …

The Effects Of Mechanical Rocking Motion On Transdifferentiating Feline Adipose Multipotent Stromal Cells Into Functioning Pancreatic Β-Cell Like Islets, Emily Halphen

Honors Capstones

No abstract provided.

Knock Knock, Who’S There? Communications In Closed Environments With A Special Focus On Vietnam Pows, Carrie Cole

Honors Capstones

No abstract provided.

Walk A Mile In My Shoes: The Disadvantage That Lies At The Intersection Of Race And Gender Through The Lens Of Kamala Harris, Wennafer Caela Donald

Honors Capstones

No abstract provided.

The Tierni Resistance Training System, Michael J. Hansen, Abigail M. Youngblood, Gabriel M. Johnson

Biomedical Engineering

The purpose of the Tierni Resistance Training System project was to design and construct functional workout apparel that has built-in resistance. For this product, the key customer requirements we set out to address were most importantly material comfort and functionality, followed by stylishness, lack of latex, safety for injured and uninjured users, and washer safety. To meet these customer requirements, we started by researching current resistance training technology, and used the findings as a springboard for our own design development. After initial brainstorming, engineering specifications were generated based on the customer requirements. These specifications revolved around the thermal insulation, pressure, …

Dynamical Modelling Of Cxogbs J175553.2-281633: A 10 H Long Orbital Period Cataclysmic Variable, Sebastian Gomez, Manuel A. P. Torres, Peter G. Jonker, Zuzanna Kostrzewa-Rutkowska, Theo F. J. Van Grunsven, Andrzej Udalski, Robert I. Hynes, Craig O. Heinke, Thomas J. Maccarone, Ricardo Salinas, Jay Strader

Faculty Publications

We present modelling of the long-term optical light and radial velocity curves of the binary stellar system CXOGBS J175553.2-281633, first detected in X-rays in the Chandra Galactic Bulge Survey. We analysed 7 yr of optical I-band photometry from Optical Gravitational Lensing Experiment and found long-term variations from year to year. These long-term variations can most likely be explained with by either variations in the luminosity of the accretion disc or a spotted secondary star. The phased light curve has a sinusoidal shape, which we interpret as being due to ellipsoidal modulations. We improve the orbital period to be P = …

Planet Hunters Tess Ii: Findings From The First Two Years Of Tess, N. L. Eisner, O. Barragan, C. Lintott, S. Aigrain, B. Nicholson, T. S. Boyajian, S. Howell, C. Johnston, B. Lakeland, G. Miller, A. Mcmaster, H. Parviainen, E. J. Safron, M. E. Schwamb, L. Trouille, S. Vaughan, N. Zicher, C. Allen, S. Allen, M. Bouslog, C. Johnson, M. N. Simon, Z. Wolfenbarger, E. M. L. Baeten, D. M. Bundy, T. Hoffman

Faculty Publications

We present the results from the first two years of the Planet Hunters TESS (PHT) citizen science project, which identifies planet candidates in the TESS (Transiting Exoplanet Survey Satellite) data by engaging members of the general public. Over 22000 citizen scientists from around the world visually inspected the first 26 sectors of TESS data in order to help identify transit-like signals. We use a clustering algorithm to combine these classifications into a ranked list of events for each sector, the top 500 of which are then visually vetted by the science team. We assess the detection efficiency of this methodology …

Level Structure Of The Tz=-1 Nucleus Ar 34 And Its Relevance For Nucleosynthesis In One Novae, A. R.L. Kennington, G. Lotay, D. T. Doherty, D. Seweryniak, C. Andreoiu, K. Auranen, M. P. Carpenter, W. N. Catford, C. M. Deibel, K. Hadyńska-Klk, S. Hallam, D. Hoff, T. Huang, R. V.F. Janssens, S. Jazrawi, J. José, F. G. Kondev, T. Lauritsen, J. Li, A. M. Rogers, J. Saiz, G. Savard, S. Stolze, G. L. Wilson, S. Zhu

Faculty Publications

The Mg24+C12 fusion reaction was used to perform a detailed γ-ray spectroscopy study of the astrophysically important nucleus Ar34. In particular, an experimental setup, coupling the advanced γ-ray tracking array GRETINA with the well-established Argonne fragment mass analyzer (FMA), was employed to obtain excitation energies and spin-parity assignments for excited states in Ar34, both above and below the proton separation energy. For the first time, an angular distribution analysis of in-beam γ rays from fusion-evaporation reactions, using a tracking array, has been performed and Coulomb energy differences of analog states in the T=1, A=34 mirror system, explored from 0 to …

Prescribed Exercise To Reduce Recidivism After Weight Loss-Pilot (Prevail-P): Design, Methods And Rationale, Damon L. Swift, Joshua E. Mcgee, Anna C. Huff, Marie C. Clunan, Nicole R. Gniewek, Taylor T. Brown, Briceida G. Osborne, Colleen Bucher, Charles J. Tanner, Savanna G. Barefoot, Patricia Brophy, Angela Clark, Gabriel S. Dubis, Corby K. Martin, Robbie A. Beyl, Joseph A. Houmard, Robert A. Carels, Walter Pories, Laura E. Matarese

Clinical Research Faculty Publications

Clinically significant weight loss is associated with health benefits for overweight and obese adults. Participation in adequate amounts of physical activity is critical for weight maintenance. However, the recommended amount of physical activity needed to promote weight maintenance is based primarily on retrospective studies that quantified physical activity levels through questionnaires which tend to overestimate physical activity levels. In addition, the present literature has provided little data on the impact of these physical activity levels on cardiovascular and diabetes risk factors, which may have equal or more clinical importance than weight changes. The Prescribed Exercise to Reduce Recidivism After Weight …

Digital Communication Technology: Does Offering A Choice Of Modality Improve Medication Adherence And Outcomes In A Persistent Asthma Population?, Diane K. King, Pj Cvietusa, Nm Wagner, Ja Shoup, Gk Goodrich, Sm Shetterly, Ma Raebel, Cs Riggs, B Bender

ISER Articles

Background: Use of digital communication technology has shown potential to improve asthma adherence and outcomes. Few studies have looked at patient preference around mode of medication reminders used to improve and maintain asthma medication adherence. Objective: To determine if, in a population already receiving automated medication reminders, offering a choice for preferred mode of reminder (text, email, phone) would improve their adherence and asthma outcomes over a 1-year period. Methods: This was a pragmatic, randomized controlled trial conducted at Kaiser Permanente Colorado involving 7522 adult patients with persistent asthma. Study patients were randomized to receive usual care or their choice …

Diversity And N2o Production Potential Of Fungi In An Oceanic Oxygen Minimum Zone, Xuefeng Peng, David L. Valentine

Faculty Publications

Fungi in terrestrial environments are known to play a key role in carbon and nitrogen biogeochemistry and exhibit high diversity. In contrast, the diversity and function of fungi in the ocean has remained underexplored and largely neglected. In the eastern tropical North Pacific oxygen minimum zone, we examined the fungal diversity by sequencing the internal transcribed spacer region 2 (ITS2) and mining a metagenome dataset collected from the same region. Additionally, we coupled ¹⁵N-tracer experiments with a selective inhibition method to determine the potential contribution of marine fungi to nitrous oxide (N₂O) production. Fungal communities evaluated by …

An International Legal Consideration Of The Issues On Lethal Autonomous Weapons Systems Including Nanomachine: A Perspective Of International Law Studies In Japan, Hiroshi Saito

Japanese Society and Culture

This paper aims to explore the legal issues on the use of Lethal Autonomous Weapons Systems (LAWS). This study is based on the recent research trend in Japan regarding studying the relationships between the international humanitarian law and the international law of human rights. The paper seeks to apply the integration theory to the relationship of both laws. As a result, this idea can pave the way for suppressing the usage of LAWS in future armed conflicts. Since the use of LAWS may lead to immense injury to fundamental human rights, it is necessary to adopt the integration theory to …

Effects Of Chronic Pain On Sleep Quality And Depression: A Cross-Sectional Study, Eman A. Alhalal, Ibrahim A. Alhalal, Amani M. Alaida, Sabreen M. Alhweity, Asma Y. Alshojaa, Amani T. Alfaori

Saudi Medical Journal

Objectives: To examined the impacts of chronic pain on depression and poor sleep quality dimensions as well as the mediating function of poor sleep quality in the pathway between chronic pain and depression. Methods: Between March 2019 and February 2020, we conducted a cross-sectional study on 233 chronic pain patients in 2 tertiary hospitals in Riyadh, Saudi Arabia. Results: Of the 233 patients, 36% had depression, while 66.1% had poor sleep quality. Chronic pain intensity and pain disability significantly explained 10.9% of depressed affect variance, 4.9% of anhedonia variance, 17.3% of somatic complaint variance, 4.5% of interpersonal difficulty variance, 7.4% …

Reported Self-Efficacy Of Nursing Clinical Instructors In A Bachelor's Of Science In Nursing (Bsn) Program, Annette Ferguson, Natalie Perry

Nursing Faculty Research

Clinical instructors play a significant role in the development of safe and competent nursing students. When nurses beginning their career as a clinical instructor, a substantial gap in knowledge can existence in the expectations of this new role. A deficiency of formal education in nursing education or orientation to this position can lead to a lack of self-efficacy and knowledge among clinical instructors. Research supports that a formal orientation and training increases feelings of self-efficacy among clinical instructors. The purpose of this study was to evaluate an online educational program on clinical instructor’s knowledge and self-efficacy towards teaching in a …

Psychological And Physiological Stress And Burnout Among Maternity Providers In A Rural County In Kenya: Individual And Situational Predictors, Patience A. Afulani, Linnet Ongeri, Joyceline Kinyua, Marleen Temmerman, Wendy Berry Mendes, Sandra J. Weiss

Obstetrics and Gynaecology, East Africa

Background: Stress and burnout among healthcare workers has been recognized as a global crisis needing urgent attention. Yet few studies have examined stress and burnout among healthcare providers in sub-Saharan Africa, and even fewer among maternity providers who work under very stressful conditions. To address these gaps, we examined self-reported stress and burnout levels as well as stress-related physiologic measures of these providers, along with their potential predictors.

Methods: Participants included 101 maternity providers (62 nurses/midwives, 16 clinical officers/doctors, and 23 support staff) in western Kenya. Respondents completed Cohen’s Perceived Stress Scale, the Shirom-Melamed Burnout scale, and other …

Laudato Si’ – A Macromarketing Manifesto For A Just And Sustainable Environment, Thomas A. Klein, Gene R. Laczniak

Marketing Faculty Research and Publications

This paper posits that Pope Francis’ 2015 encyclical on environmental climate change, Laudato si’ (“Praise be to you, my Lord”), or LS for short, provides a compelling and multi-faceted framework for co-creating a just and sustainable environment. LS includes considerable commentary about how markets and marketing impact the physical and social environment. Additionally, the document provides religion-inspired ethical norms for market conditions, actions, and performance that reflect both (a) the social teachings of the Catholic Church as they have evolved over the past 125 years and, as we will explain, (b) a foundational predicate of macromarketing scholarship – that is, …

Non-Nuclear Methods For Compaction Control Of Unbound Soil And Granular Layers, Brad Rister, Charlie Sun, Kean H. Ashurst Jr., Tim Jones, Christopher Van Dyke

Kentucky Transportation Center Research Report

In highway construction, the nuclear density gauge (NDG) is the industry standard for measuring soil density and moisture. They are widely used at state transportation agencies, however, because of their reliance on radiation, NDGs are expensive to maintain and have unique storage requirements. Operators must also earn specialized certifications and adhere to rigorous safety protocols. Equipment manufacturers have developed several non-nuclear density gauges which are more user friendly, however, their accuracy has sometimes not equaled NDGs. This comparative study evaluated the performance of the eGauge (a relatively new device) to NDGs. Over 100 soil density and moisture measurements were collected …

The Association Between Quitline Characteristics And Smoking Cessation By Educational Attainment, Income, Race/Ethnicity, And Sex, David C. Colston, Bethany J. Simard, Yanmei Xie, Marshall Chandler Mcleod, Micheal R. Elliott, Jim F. Thrasher Ph.D., Ma, Ms, Nancy L. Fleischer

Faculty Publications

Little research examines how tobacco quitlines affect disparities in smoking cessation in the United States. Our study utilized data from the Tobacco Use Supplement to the Current Population Survey (2010, 2011, 2012, 2015, 2018) (TUS-CPS) and state-level quitline data from the North American Quitline Consortium and National Quitline Data Warehouse. We ran multilevel logistic regression models assessing a state-run quitline’s budget, reach, number of counseling sessions offered per caller, and hours of operation on 90-day smoking cessation. Multiplicative interactions between all exposures and sex, race/ethnicity, income, and education were tested to understand potential effect modification. We found no evidence that …

Multiphase Buck Converter Implementing Gallium Nitride Semiconductors, Kadin P. Stephens

Electrical Engineering

Efficiency and power loss contributions are two of the main concerns in power systems. This project exerts the use of wide bandgap semiconductors, namely Gallium Nitride (GaN), and their benefit within a Cisco Systems point-of-load converter. This project provides tools to assist researchers and practicing engineers in performing further characterization, and implementation, of GaN devices. Silicon-based Metal Oxide Semiconductor Field Effect (MOSFETs) transistors have prevailed in power conversion applications for decades and are now considered an industry standard. Presently, the utilization of wide bandgap semiconductors is an emerging, competitive technology, as they offer many major advantages over the traditional silicon …

A Spectral Analysis Of The Massalia Asteroid Family To Evaluate The L-Chondrite Source Hypothesis, Caleb A. Strom, Sherry Fieber-Beyer, Michael J. Gaffey, J. T. Germann

Space Studies Faculty Publications

A major research objective within asteroid science is to identify the source bodies of the meteorites. So far, possible or probable parent bodies have only been identified for a few meteorite types. These meteorite types include the H-type ordinary chon-drites [1,2], HEDs [3,4], pallasites [3], and mesosider-ites [5]. Identifying the parent bodies of meteorites helps to determine the location within the solar nebula where the geochemical processes, recorded in meteorites, took place. This has significantly increased our understanding of the evolution of the solar nebula and the early so-lar system [6].

Among the many meteorite types whose parent bodies are …

Criminal Law—An Analysis Of The Scope Of Unlicensed Concealed Carry Of A Firearm In Arkansas Pursuant To Arkansas Code Annotated Section 5-73-120 As Amended By Act 746 Of 2013., Hannah Webb Howard

University of Arkansas at Little Rock Law Review

No abstract provided.

Civil Rights Law—Out Of The Shadows: The Case For Arkansas To Achieve Full Compliance With The Prison Rape Elimination Act, Connor Thompson

University of Arkansas at Little Rock Law Review

No abstract provided.

Civil Warfare: Where U.S. And Russian Policy Meet Civil Society In Eurasia, Robert Q. Carolan

Compass: An Undergraduate Journal of American Political Ideas

Civil society in Eurasia is not always a friend to Washington, and is, at times, an ally to Moscow. This paper reviews select Eurasian civil society organizations and their role in Russian hybrid warfare.

Author information: Robert Quinn Carolan is a master’s student at Sciences Po’s Paris School of Public of Affairs (PSIA) and the Moscow State Institute of Foreign Affairs (MGIMO) (University) and alumnus of Northern Illinois University. He wrote this piece in coordination with the NIU Student Engagement Fund and as a US Gilman Scholar in Ukraine.

Mmu: 03/01/21–03/07/21, Student Bar Association

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Is It Time To Unify The Regulation Of Depository Institution Holding Companies? Historical Review Of Differentiation And Convergence In The Regulation And Supervision Of Depository Institutions, Bank Holding Companies, And Savings And Loan Holding Companies, Mark B. Greenlee

North Carolina Banking Institute

No abstract provided.

Community Reinvestment Act Final Rule: Will The Fdic Eventually Adopt The New Regulations, Kevin Goldman

North Carolina Banking Institute

No abstract provided.

Online Sports Betting: The Opportunities And Risks For Banks, Evan Harrell

North Carolina Banking Institute

No abstract provided.

Bach’S Fifth Cello Suite, Double Bass And Scordatura: Practical And Historical Solutions, Thomas Willhoit

Graduate Student Work

J.S. Bach’s Six Suites for Solo Cello have become part of the standard bass repertoire. Some of these suites contain chords that are physically impossible to play on a standard double bass tuned in fourths; thus, there are many performance editions and recordings that contain chord omissions and rearrangements. This essay explores some of the critical reception that double bassists’ readings of the Six Suites have received. This knowledge is then taken to support practical performance solutions: scordatura (particularly tuning in perfect 5ths) and articulations from the urtext. The included examples demonstrate the technical and stylistic problems incurred while performing …

Expanding Constituency Support Through Shared Local Roots In U.S. House Primaries, Charles Hunt

Political Science Faculty Publications and Presentations

This paper addresses the enduring connection of localism and place-based roots shared between many elected leaders and their constituents, which previous work has either ignored or improperly specified. I argue that representatives of the U.S. House with these roots—meaning authentic, lived experience in their districts prior to their officeholding—sustain more supportive constituencies in primary election stage. Using an original 7-point index of local biographical characteristics of incumbents seeking renomination from 2002 to 2018, I find that deeply-rooted incumbents are less than half as likely to receive a primary challenge, and on average perform more than 5 percentage points better in …

How And Why Did It Go So Wrong?: Theranos As A Legal Ethics Case Study, G.S. Hans

Georgia State University Law Review

The Theranos saga encompasses many discrete areas of law. Reporting on Theranos, most notably John Carreyrou’s Bad Blood, highlights the questionable ethical decisions that many of the attorneys involved made. The lessons attorneys and law students can learn from Bad Blood are highly complex. The Theranos story touches on multiple areas of professional responsibility, including competence, diligence, candor, conflicts, and liability. Thus, Theranos serves as a helpful tool to explore the limits of ethical lawyering for Professional Responsibility students.

This Article discusses the author’s experience with using Bad Blood as an extended case study in a new course on Legal …