Digital Commons Network^™

Strategic Human Resource Management And Covid-19: Emerging Challenges And Research Opportunities, David G. Collings, John Mcmackin, Anthony Nyberg, Patrick M. Wright

Faculty Publications

No abstract provided.

Blockumulus: A Scalable Framework For Smart Contracts On The Cloud, Nikolay Ivanov, Qiben Yan, Qingyang Wang

Faculty Publications

Public blockchains have spurred the growing popularity of decentralized transactions and smart contracts, especially on the financial market. However, public blockchains exhibit their limitations on the transaction throughput, storage availability, and compute capacity. To avoid transaction gridlock, public blockchains impose large fees and per-block resource limits, making it difficult to accommodate the ever-growing high transaction demand. Previous research endeavors to improve the scalability and performance of blockchain through various technologies, such as side-chaining, sharding, secured off-chain computation, communication network optimizations, and efficient consensus protocols. However, these approaches have not attained a widespread adoption due to their inability in delivering a …

Estimating Turbulence Distribution Over A Heterogeneous Path Using Time‐Lapse Imagery From Dual Cameras, Benjamin Wilson, Santasri Bose-Pillai, Jack E. Mccrae, Kevin J. Keefer, Steven T. Fiorino

Faculty Publications

Knowledge of turbulence distribution along an experimental path can help in effective turbulence compensation and mitigation. Although scintillometers are traditionally used to measure the strength of turbulence, they provide a path-integrated measurement and have limited operational ranges. A technique to profile turbulence using time-lapse imagery of a distant target from spatially separated cameras is presented here. The method uses the turbulence induced differential motion between pairs of point features on a target, sensed at a single camera and between cameras to extract turbulence distribution along the path. The method is successfully demonstrated on a 511 m almost horizontal path going …

Influencing Perceptions Of Stem Through The Best Stem Books List, Scott Bartholomew, Alexia Seymour

Faculty Publications

One day, while discussing engineering and science as potential career options with a female student, we opened a search engine and typed in “engineer” and “scientist.” However, on the first pages of image results, only one female appeared for engineering and only a few females appeared for “scientist” (see Figure 1). This disparity was disturbing—if this student never saw another person like her filling careers in STEM fields, would she ever “picture herself” in those fields?

Observation Of Gravitational Waves From Two Neutron Star-Black Hole Coalescences, R. Abbott, T. D. Abbott, S. Abraham, F. Acernese, K. Ackley, A. Adams, C. Adams, R. X. Adhikari, V. B. Adya, C. Affeldt, D. Agarwal, M. Agathos, K. Agatsuma, N. Aggarwal, O. D. Aguiar, L. Aiello, A. Ain, P. Ajith, T. Akutsu, Tiffany Z. Summerscales

Faculty Publications

We report the observation of gravitational waves from two compact binary coalescences in LIGO's and Virgo's third observing run with properties consistent with neutron star-black hole (NSBH) binaries. The two events are named GW200105_162426 and GW200115_042309, abbreviated as GW200105 and GW200115; the first was observed by LIGO Livingston and Virgo and the second by all three LIGO-Virgo detectors. The source of GW200105 has component masses, whereas the source of GW200115 has component masses and (all measurements quoted at the 90% credible level). The probability that the secondary's mass is below the maximal mass of a neutron star is 89%-96% and …

Physical Activity Among Adults Residing In 11 Countries During The Covid-19 Pandemic Lockdown, Kele Ding, Jingzhen Yang, Ming-Kai Chin, Lindsay Sullivan, J. Larry Durstine, Verónica Violant-Holz, Giyasettin Demirhan, Nara R.C. Oliveira, Biljana Popeska, Garry Kuan, Waheeda Khan, Jianhui Dai, Xia Xu, Zornitza Mladenova, Govindasamy Balasekaran, Gary A. Smith, Global Community Health-Covid-19 Collaborative Research Team

Faculty Publications

During the novel coronavirus (COVID-19) pandemic, physical activity (PA) behaviors were altered worldwide due to public health measures such as “lockdown.” This study described PA among adults residing in 11 countries during COVID-19 lockdown and examined factors associated with PA engagement. We conducted a cross-sectional anonymous survey among adults (≥18 years old) in 11 countries (Brazil, Bulgaria, China, India, Ireland, Malaysia, North Macedonia, Singapore, Spain, Turkey, United States). Of 11,775 participants, 63.7% were female and 52.8% were 18–34 years old. More than 40% of participants were insufficiently active (43.9%) and reported a decrease in their PA during lockdown (44.8%). Statistically …

Loosening Control—A Hybrid Approach To Controlling Heterogeneous Swarms, Lukas Esterle, David W. King

Faculty Publications

Large pervasive systems, deployed in dynamic environments, require flexible control mechanisms to meet the demands of chaotic state changes while accomplishing system goals. As centralized control approaches may falter in environments where centralized communication and knowledge may be impossible to implement, researchers have proposed decentralized control methods that leverage agent-driven, self-organizing behaviors, to achieve reliable, flexible systems. This article presents and compares the performance of three decentralized control approaches in the online multi-object k-assignment problem. In this domain, a set of sensors is tasked to detect and track an unknown and changing set of targets. Results show that a …

A Qualitative Study Of Stress And Coping To Inform The Leads Health Promotion Trial For African American Adolescents With Overweight And Obesity, Mary Quattlebaum, Colby Kipp, Dawn Wilson-King, Allison Sweeney Ph.D.

Faculty Publications

The purpose of this study was to conduct in-depth individual interviews with 30 African American adolescents with overweight and obesity and their families (caregiver/adolescent dyads) to gain a better understanding of how to integrate stress and coping essential elements into an existing family-based health promotion program for weight loss. Interview data from 30 African American adolescents with overweight and obesity (Mage = 15.30 ± 2.18; MBMI%-ile = 96.7 ± 3.90) were transcribed and coded for themes using inductive and deductive approaches by two independent coders. Inter-rater reliability was acceptable (r = 0.70–0.80) and discrepancies were resolved to 100% agreement. The …

Observation Of Gravitational Waves From Two Neutron Star–Black Hole Coalescences, Ligo Scientific Collaboration, Virgo Collaboration, Kagra Collaboration, Tiffany Z. Summerscales

Faculty Publications

We report the observation of gravitational waves from two compact binary coalescences in LIGO's and Virgo's third observing run with properties consistent with neutron star–black hole (NSBH) binaries. The two events are named GW200105_162426 and GW200115_042309, abbreviated as GW200105 and GW200115; the first was observed by LIGO Livingston and Virgo and the second by all three LIGO–Virgo detectors. The source of GW200105 has component masses and , whereas the source of GW200115 has component masses and (all measurements quoted at the 90% credible level). The probability that the secondary's mass is below the maximal mass of a neutron star is …

Concentrations, Ratios, And Sinking Fluxes Of Major Bioelements At Ocean Station Papa, Montserrat Roca-Martí

Faculty Publications

Fluxes of major bioelements associated with sinking particles were quantified in late summer 2018 as part of the EXport Processes in the Ocean from RemoTe Sensing (EXPORTS) field campaign near Ocean Station Papa in the subarctic northeast Pacific. The thorium-234 method was used in conjunction with size-fractionated (1–5, 5–51, and >51 μm) concentrations of particulate nitrogen (PN), total particulate phosphorus (TPP), biogenic silica (bSi), and particulate inorganic carbon (PIC) collected using large volume filtration via in situ pumps. We build upon recent work quantifying POC fluxes during EXPORTS. Similar remineralization length scales were observed for both POC and PN across …

Atmospheric Ducting Effect In Wireless Communications: Challenges And Opportunities, Fangfang Liu, Jiaxi Pan, Xiangwei Zhou, Geoffrey Ye Li

Faculty Publications

—Atmospheric ducting has a significant im-pact on electromagnetic wave propagation. Radio signals that are trapped and guided by the atmospheric duct can travel a much longer distance over the horizon with lower attenuation since the signal power does not spread isotropically through the atmosphere. Atmospheric ducting brings both challenges and opportunities to wireless communications. On one hand, the signals propagating in the atmospheric duct may interfere with a receiver far away as remote co-channel interference. On the other hand, a point-to-point link can be established directly through the atmospheric duct to enable beyond line-of-sight communications. In this article, the for-mation …

The Young Age And Plant-Based Diet Hypothesis For Low Sars-Cov-2 Infection And Covid-19 Pandemic In Sub-Saharan Africa, J N. Losso, M N. Losso, M Toc, J N. Inungu, J N. Losso

Faculty Publications

Since the outbreak of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that caused the coronavirus disease-19 (COVID-19), in December 2019, the infection has spread around the globe. Some of the risk factors include social distancing, mask wearing, hand washing with soap, obesity, diabetes, hypertension, asthma, cardiovascular disease, and dysbiosis. Evidence has shown the incidence of total infection and death rates to be lower in sub-Saharan Africa when compared with North Africa, Europe and North America and many other parts of the world. The higher the metabolic syndrome rate, the higher the risk of SARS-CoV-2 infection. Africa has a lower …

The Community Health Worker (Chw) Common Indicators Project: Engaging Chws In Measurement To Sustain The Profession, Keara Rodela, Noelle Wiggins, Kenneth Maes, Teresa Campos-Dominguez, Victoria Adewumi, Pennie Jewell, Susan Mayfield-Johnson

Faculty Publications

Despite progress in documenting the outcomes of Community Health Worker interventions, the lack of standardized measures to assess CHW practice has made it difficult for programs to conduct reliable evaluations, and impossible to aggregate data across programs and regions, impeding commitment to sustainable, long-term financing of CHW programs. In addition, while CHWs have sometimes been involved as data collectors, they have seldom been engaged as full partners in all stages of evaluation and research. This manuscript details the current work being done by the CI Project, demonstrating how CHWs are able to contribute to the integrity, sustainability, and viability of …

The Mexico Simsmoke Tobacco Control Policy Model: Development Of A Simulation Model Of Daily And Nondaily Cigarette Smoking, Luz Maria Sanchez-Romero, Luis Zavala-Arciniega, Luz Myriam Reynales-Shigematsu, Belén Sáenz De Miera-Juárez, Zhe Yuan, Yameng Li, Yan Kwan Lau, Nancy L. Fleischer, Rafael Meza, Jim F. Thrasher Ph.D., Ma, Ms, David T. Levy

Faculty Publications

Background

Nondaily smoking has been on the rise, especially in Mexico. While Mexico has strengthened its tobacco control policies, their effects on nondaily smokers have gone largely unexamined. We developed a simulation model to estimate the impact of tobacco control policies on daily and nondaily smoking in Mexico.

Methods

A previously validated Mexico SimSmoke model that estimated overall trends in smoking prevalence from 2002 through 2013 was extended to 2018 and adapted to distinguish daily and nondaily smoking prevalence. The model was then validated using data from Mexican surveys through 2016. To gauge the potential effects of policies, we compared …

Measurement Of The Iron Spectrum In Cosmic Rays From 10 Gev/N To 2.0 Tev/N With The Calorimetric Electron Telescope On The International Space Station, O. Adriani, Y. Akaike, K. Asano, Y. Asaoka, E. Berti, G. Bigongiari, W. R. Binns, M. Bongi, P. Brogi, A. Bruno, J. H. Buckley, N. Cannady, G. Castellini, C. Checchia, M. L. Cherry, G. Collazuol, K. Ebisawa, H. Fuke, S. Gonzi, T. G. Guzik, T. Hams, K. Hibino, M. Ichimura, K. Ioka, W. Ishizaki, M. H. Israel, K. Kasahara, J. Kataoka, R. Kataoka, Y. Katayose, C. Kato, N. Kawanaka, Y. Kawakubo, K. Kobayashi, K. Kohri, H. S. Krawczynski, J. F. Krizmanic, J. Link, P. Maestro, P. S. Marrocchesi, A. M. Messineo, J. W. Mitchell, S. Miyake, A. A. Moiseev, M. Mori, N. Mori, H. M. Motz, K. Munakata, S. Nakahira, J. Nishimura, G. A. De Nolfo, S. Okuno, J. F. Ormes, N. Ospina, S. Ozawa, L. Pacini, P. Papini, B. F. Rauch, S. B. Ricciarini, K. Sakai, T. Sakamoto, M. Sasaki, Y. Shimizu, A. Shiomi, P. Spillantini, F. Stolzi, S. Sugita, A. Sulaj, M. Takita, T. Tamura, T. Terasawa, S. Torii, Y. Tsunesada, Y. Uchihori, E. Vannuccini, J. P. Wefel, K. Yamaoka, S. Yanagita, A. Yoshida, K. Yoshida

Faculty Publications

The Calorimetric Electron Telescope (CALET), in operation on the International Space Station since 2015, collected a large sample of cosmic-ray iron over a wide energy interval. In this Letter a measurement of the iron spectrum is presented in the range of kinetic energy per nucleon from 10 GeV/n to 2.0 TeV/n allowing the inclusion of iron in the list of elements studied with unprecedented precision by space-borne instruments. The measurement is based on observations carried out from January 2016 to May 2020. The CALET instrument can identify individual nuclear species via a measurement of their electric charge with a dynamic …

A Nationwide Population-Based Study On The Association Between Land Transport Accident And Peripheral Vestibular Disorders, Herng-Ching Lin, Sudha Xirasagar Mbbs,Ph.D., Chia-Hui Wang, Yen-Fu Cheng, Tsai-Ching Liu, Tzong-Hann Yang

Faculty Publications

This case-control study aimed to investigate the association of peripheral vestibular disorders (PVD) with subsequent land transport accidents. Data for this study were obtained from Taiwan's National Health Insurance (NHI) dataset. We retrieved 8704 subjects who were newly found to have land transport accidents as cases. Their diagnosis date was used as their index date. Controls were identified by propensity score matching (one per case, n = 8704 controls) from the NHI dataset with their index date being the date of their first health service claim in 2017. Multiple logistic regressions were performed to calculate the prior PVD odds ratio …

Elite Cues And The Rapid Decline Of Trust In Science Agencies On Covid-19, Lawrence C. Hamilton, Thomas G. Safford

Faculty Publications

The COVID-19 pandemic has been marked by political divisions in US public trust of scientists. Such divisions are well known on other science topics, but regarding COVID-19 they arose suddenly, with disastrous results. Public distrust of scientists has been variously explained in terms of conflicts with belief systems, psychology, peer influences, or communication from elites. Three surveys conducted from March to July 2020 in the US state of New Hampshire observed changing perceptions on COVID-19, providing a test of alternative explanations. Over this period trust in science agencies such as the CDC for information on the coronavirus fell dramatically among …

Biogenic Sinking Particle Fluxes And Sediment Trap Collection Efficiency At Ocean Station Papa, Margaret Estapa, Ken Buesseler, Collen A. Durkin, Melissa Omand, Claudia Benitez-Nelson, Montserrat Rocca-Martí, Elly Breves, R. P. Kelly, Steve Pike

Faculty Publications

Comprehensive field observations characterizing the biological carbon pump (BCP) provide the foundation needed to constrain mechanistic models of downward particulate organic carbon (POC) flux in the ocean. Sediment traps were deployed three times during the EXport Processes in the Ocean from RemoTe Sensing campaign at Ocean Station Papa in August–September 2018. We propose a new method to correct sediment trap sample contamination by zooplankton “swimmers.” We consider the advantages of polyacrylamide gel collectors to constrain swimmer influence and estimate the magnitude of possible trap biases. Measured sediment trap fluxes of thorium-234 are compared to water column measurements to assess trap …

Food Insecurity And Frailty Among Women With And Without Hiv In The United States: A Cross-Sectional Analysis, Judy Y. Tan, Lila A. Sheira, Edward A. Frongillo Jr., Deborah Gustafson, Anjali Sharma, Daniel Merenstein, Mardge H. Cohen, Elizabeth Golub, Andrew Edmonds, Igho Ofotokun, Margaret Fischl, Deborah Konkle-Parker, Torsten Neilands, Phyllis Tien, Sheri D. Weiser

Faculty Publications

Introduction: Frailty is frequently observed among people with HIV, and food insecurity is associated with frailty in the general population. Evidence is scarce on the associations between food insecurity and frailty among women with HIV who maybe particularly vulnerable to the impacts of food insecurity. The goal of this study was to assess associations between food insecurity and frailty among women with and without HIV.

Methods: There were 1265 participants from the Women’s Interagency HIV Study who participated in frailty assessments in2017. Frailty was measured using the Fried Frailty Phenotype, and women were subsequently categorized as robust, pre-frailor frail. …

Framing Sports' Corporate Social Responsibility: Us Women's Vs Men's Soccer Leagues, David Painter, Brittani Sahm, Paul Schattschneider

Faculty Publications

Purpose – This investigation’s purpose is to compare coverage of the corporate social responsibility (CSR) behaviors of the National Women’s Soccer League (NWSL) and Major League Soccer (MLS). The goals are (1) to extend CSR analyses beyond organizational reports and (2) to compare coverage of professional sports teams’ CSR behaviors across genders.

Design/methodology/approach – Specifically, this quantitative content analysis compared local newspaper coverage of the socially responsible behaviors of the three NWSL and MLS teams owned and operated by the same organizations in Portland, Houston and Orlando.

Findings – The NWSL teams received significantly less and more negative coverage than …

The Mini-Captain Liquid Argon Time Projection Chamber, C. E. Taylor, B. Bhandari, J. Bian, K. Bilton, C. Callahan, J. Chaves, H. Chen, D. Cline, R. L. Cooper, D. L. Danielson, J. Danielson, N. Dokania, S. Elliot, S. Fernandes, S. Gardiner, G. Garvey, V. Gehman, F. Giuliani, S. Glavin, M. Gold, C. Grant, E. Guardincerri, T. Haines, A. Higuera, J. Y. Ji, R. Kadel, N. Kamp, A. Karlin, W. Ketchum, L. W. Koerner, D. Lee, K. Lee, Q. Liu, S. Locke, W. C. Louis, P. Madigan, A. Manalaysay, J. Maricic, E. Martin, M. J. Martinez, S. Martunenko, C. Mauger, C. Mcgrew, J. Medina, P. J. Medina, G. Mills, J. Mirabal-Martinez, A. Olivier, E. Pantic, B. Philipbar, C. Pitcher, V. Radeka, J. Ramsey, K. Rielage, M. Rosen, A. R. Sanchez, J. Shin, G. Sinnis, M. Smy, W. Sondeim, I. Stancu, C. Sterbenz, Y. Sun, R. Svoboda, A. Teymourian, C. Thorn, C. E. Tull, M. Tzanov, R. Van De Water, N. Walsh, H. Wang, Y. Wang, C. Yanagisawa, A. Yarritu, J. Yoo

Faculty Publications

This manuscript describes the commissioning of the Mini-CAPTAIN liquid argon detector in a neutron beam at the Los Alamos Neutron Science Center (LANSCE), which led to a first measurement of high-energy neutron interactions in argon. The Mini-CAPTAIN detector consists of a Time Projection Chamber (TPC) with an accompanying photomultiplier tube (PMT) array sealed inside a liquid-argon-filled cryostat. The liquid argon is constantly purified and recirculated in a closed-loop cycle during operation. The specifications and assembly of the detector subsystems and an overview of their performance in a neutron beam are reported.

Educational Theory-Integrated Construction Industry Training: State-Of-The-Art Review, Hazem Jadallah, Carol J. Friedland, Isabelina Nahmens, Charles Pecquet, Charles Berryman, Yimin Zhu

Faculty Publications

Workforce training is needed throughout the construction industry to create and maintain competent workers; unfortunately, most construction training and education research focuses on university student education. Integrating education science theory into construction training has the potential to improve industry training, but the status of this integration has not been well articulated. To address this gap, this article undertakes a state-of-the-art review of education theory–integrated construction training for current industry professionals. To measure the extent of educational theory integration, this article identifies and summarizes studies that meet inclusion criteria, identifies the frequency of occurrence of Bloom’s Taxonomy verbs as a measure …

A Systematic Literature Review Of Sexual Harassment Studies With Text Mining, Amir Karami, Melek Yildiz Spinel, Nicole White, Kayla Ford, Suzanne Swan

Faculty Publications

Sexual harassment has been the topic of thousands of research articles in the 20th and 21st centuries. Several review papers have been developed to synthesize the literature about sexual harassment. While traditional literature review studies provide valuable insights, these studies have some limitations including analyzing a limited number of papers, being time-consuming and labor-intensive, focusing on a few topics, and lacking temporal trend analysis. To address these limitations, this paper employs both computational and qualitative approaches to identify major research topics, explore temporal trends of sexual harassment topics over the past few decades, and point to future possible directions in …

Increased Risk Of Death Triggered By Domestic Violence, Hunger, Suicide, Exhausted Health System During Covid-19 Pandemic: Why, How And Solutions, Kenneth Bitrus David, Abdullahi Tunde Aborode, Damilola Quazeem Olaoye, Ndikpongkeabasi Victor Enang, Aboaba Kazeem Oriyomi, Ismaeel Yunusa

Faculty Publications

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infections, just like many other public health emergencies, is a well-established global health burden that has resulted in several changes in routines and lifestyles of people globally. The coronavirus disease (COVID-19) pandemic, caused by SARS-CoV-2, has directly or indirectly involved in the loss of lives of more than 3.24 million as of 6th May, 2021. The increasing threats posed by this pandemic were subsided by the swift and drastic measures put in place by different countries. As other causes of death before the emergence of COVID-19 still exist, the pandemic has further worsened …

Moderating Effects Of Parental Feeding Practices And Emotional Eating On Dietary Intake Among Overweight African American Adolescents, Mary Quattlebaum, Dawn K. Wilson-King, Allison M. Sweeney, Nicole Zarrett

Faculty Publications

This study examined the effects of parental feeding practices and adolescent emotional eating (EE) on dietary outcomes among overweight African American adolescents. Based on Family Systems Theory, it was hypothesized that parental feeding practices, such as parental monitoring and responsibility, would buffer the effects of EE on poor dietary quality, whereas practices such as concern about a child’s weight, restriction, and pressure-to-eat would exacerbate this relationship. Adolescents (N = 127; Mage = 12.83 ± 1.74; MBMI% = 96.61 ± 4.14) provided baseline data from the Families Improving Together (FIT) for Weight Loss trial and an ancillary study. Dietary outcomes (fruit …

Analysis Of Administrative Agency Adjudicatory Hearing Use Of Remote Appearances And Virtual Hearings, Fredric I. Lederer, Center For Legal & Court Technology

Faculty Publications

With the advent of the COVID-19 pandemic, federal and state courts and federal adjudicatory agencies suspended most trials and hearings. Faced with the requirement to fulfill their basic mission, many resumed partial operations using computer-based video conferencing,especially for preliminary legal and procedural matters. As time passed, the use of that videoconferencing extended to bench trials in courts and to adjudicatory hearings and proceedings such as settlement meetings, mediations, arbitrations, and status conferences in federal agencies. As of this writing, there have also been a small number of remote or virtual jury trials in state and federal courts.

The Administrative Conference …

Sphincs_Bssn: A General Relativistic Smooth Particle Hydrodynamics Code For Dynamical Spacetimes, S. Rosswog, P. Diener

Faculty Publications

We present a new methodology for simulating self-gravitating general-relativistic fluids. In our approach the fluid is modelled by means of Lagrangian particles in the framework of a general-relativistic (GR) smoothed particle hydrodynamics (SPH) formulation, while the spacetime is evolved on a mesh according to the Baumgarte-Shapiro-Shibata-Nakamura (BSSN) formulation that is also frequently used in Eulerian GR-hydrodynamics. To the best of our knowledge this is the first Lagrangian fully general relativistic hydrodynamics code (all previous SPH approaches used approximations to GR-gravity). A core ingredient of our particle-mesh approach is the coupling between the gas (represented by particles) and the spacetime (represented …

Community Engagement Practices At Research Centers In U.S. Minority Institutions: Priority Populations And Innovative Approaches To Advancing Health Disparities Research, Tabia Henry Akintobi, Payam Sheikhattari, Emma Shaffer, Christina L. Evans, Kathryn L. Braun, Angela U. Sy, Bibiana Mancera, Adriana Campa, Stephania T. Miller, Daniel Sarpong, Rhonda Holliday, Julio Jimenez-Chavez, Shafiq Khan, Cimona Hinton, Kimberly Sellars-Bates, Veronica Ajewole, Nicolette I. Teufel-Shone, Juliet Mcmullin, Sandra Suther, K. Sean Kimbro, Lorraine Taylor

Faculty Publications

This paper details U.S. Research Centers in Minority Institutions (RCMI) Community Engagement Cores (CECs): (1) unique and cross-cutting components, focus areas, specific aims, and target populations; and (2) approaches utilized to build or sustain trust towards community participation in research. A mixed-method data collection approach was employed for this cross-sectional study of current or previously funded RCMIs. A total of 18 of the 25 institutions spanning 13 U.S. states and territories participated. CEC specific aims were to support community engaged research (94%); to translate and disseminate research findings (88%); to develop partnerships (82%); and to build capacity around community research …

Development Of Parameters Towards Voice Bifurcations, Takeshi Ikuma, Andrew J. Mcwhorter, Lacey Adkins, Melda Kunduk

Faculty Publications

Pathological vocal folds are known to exhibit multiple oscillation patterns, depending on tissue imbalance, subglottal pressure level, and other factors. This includes mid-phonation changes due to bifurcations in the underlying voice source system. Knowledge of when changes in oscillation patterns occur is helpful in the assessments of voice disorders, and the knowledge could be transformed into useful objective measures. Mid-phonation bifurcations can occur in rapid succession; hence, a fast classification of oscillation pattern is critical to minimize the averaging of data across bifurcations. This paper proposes frequency-ratio based short-term measures, named harmonic disturbance factor (HDF) and biphonic index (BI), towards …

Synthetic Aperture Radar Image Recognition Of Armored Vehicles, Christopher Szul, Torrey J. Wagner, Brent T. Langhals

Faculty Publications

Synthetic Aperture Radar (SAR) imagery is not affected by weather and allows for day-and-night observations, however it can be difficult to interpret. This work applies classical and neural network machine learning techniques to perform image classification of SAR imagery. The Moving and Stationary Target Acquisition and Recognition dataset from the Air Force Research Laboratory was used, which contained 2,987 total observations of the BMP-2, BTR-70, and T-72 vehicles. Using a 75%/25% train/test split, the classical model achieved an average multi-class image recognition accuracy of 70%, while a convolutional neural network was able to achieve a 97% accuracy with lower model …