Digital Commons Network^™

Risks And Benefits Of Using A Commercially Available Ventricular Assist Device For Failing Fontan Cavopulmonary Support: A Modeling Investigation, Masoud Farahmand, Minoo N. Kavarana, Ethan Kung

Publications

Fontan patients often develop circulatory failure and are in desperate need of a therapeutic solution. A blood pump surgically placed in the cavopulmonary pathway can substitute the function of the absent sub-pulmonary ventricle by generating a mild pressure boost. However, there is currently no commercially available device designed for the cavopulmonary application; and the risks and benefits of implanting a ventricular assist device (VAD), originally designed for the left ventricular application, on the right circulation of failing Fontan patients is not yet clear. Moreover, further research is needed to compare the hemodynamics between the two clinically-considered surgical configurations for cavopulmonary …

Supporting Safety Culture In Academia: Safety Communication Barriers, Emily Faulconer, Chelsea Lenoble

Publications

In the last decade, we have heard of multiple disturbing academic laboratory accidents resulting in significant injury and property damage. When these hit headlines, it can spur self-reflection across academic institutions. The unfortunate truth is that safety in academia tends to be problematic. Accidents happen regularly even if they do not make headlines, with post-accident analyses typically revealing systematic safety failures. As a result, the concept of safety culture has come into the spotlight.

Digital Literacies In The Classroom: Authentic Opportunities For Student Engagement, Lori A. Mumpower, Cassandra Branham, Aaron D. Clevenger, Emily Faulconer, Alex Watkins

Publications

No abstract provided.

Physiological Effects On Scientist Astronaut Candidates: Hypobaric Training Assessment, Pedro Llanos, Diego Garcia

Publications

This paper is addressed to expanding our understanding of the effects of hypoxia training on our bodies to better model its dynamics and leverage some of its implications and effects on human health. Hypoxia training is a recommended practice for military and civilian pilots that allow them to recognize their early hypoxia signs and symptoms, and Scientist Astronaut Candidates (SACs) who underwent hypobaric hypoxia (HH) exposure as part of a training activity for prospective suborbital flight applications. This observational-analytical study describes physiologic responses and symptoms experienced by a SAC group before, during and after HH exposure and proposes a model …

Coverage Guided Differential Adversarial Testing Of Deep Learning Systems, Jianmin Guo, Houbing Song, Yue Zhao, Yu Jiang

Publications

Deep learning is increasingly applied to safety-critical application domains such as autonomous cars and medical devices. It is of significant importance to ensure their reliability and robustness. In this paper, we propose DLFuzz, the coverage guided differential adversarial testing framework to guide deep learing systems exposing incorrect behaviors. DLFuzz keeps minutely mutating the input to maximize the neuron coverage and the prediction difference between the original input and the mutated input, without manual labeling effort or cross-referencing oracles from other systems with the same functionality. We also design multiple novel strategies for neuron selection to improve the neuron coverage. The …

Global Energy Poverty: The Relevance Of Faith And Reason, Lakshman Guruswamy

Publications

The challenge of energy poverty (EP) primarily confronts the least developed countries (LDCs) of the world, located in Africa and Asia, but is also prevalent within segments of more advanced developing countries in Asia. This article will first delineate the nature of global energy poverty that results in the premature deaths of millions of people and leads to pervasive sickness among many more millions. The article will next sketch the legal and political responses to this problem that have generally applied principles of sustainable development (SD) and the seventeen Sustainable Development Goals (SDGs) of 2015 adopted by the General Assembly …

Factorial Validity Of The Flight Risk Assessment Tool In General Aviation Operations, Flavio A. C. Mendonca, Allen Xie, Chenyu Huang Ph.D.

Publications

The Flight Risk Assessment Tool (FRAT) was developed and is recommended by the Federal Aviation Administration to provide a solution of proactively identifying and mitigating risk before each flight. General aviation (GA) operators are encouraged to adapt the FRAT based upon specific operational characteristics. Currently, most safety management systems-compliant GA operators have implemented various versions of FRATs with different operational purposes. However, the FRAT could be inappropriately implemented because of the dynamic operational features of GA operations. The purpose of this study is to explore insights into potential approaches to validate the FRAT that is used for flight risk assessment …

Mac Protocols For Terahertz Communication: A Comprehensive Survey, Saim Ghafoor, Noureddine Boujnah, Mubashir Husain Rehmani, Alan Davy

Publications

Terahertz communication is emerging as a future technology to support Terabits per second link with highlighting features as high throughput and negligible latency. However, the unique features of the Terahertz band such as high path loss, scattering, and reflection pose new challenges and results in short communication distance. The antenna directionality, in turn, is required to enhance the communication distance and to overcome the high path loss. However, these features in combine negate the use of traditional medium access protocols (MAC). Therefore, novel MAC protocol designs are required to fully exploit their potential benefits including efficient channel access, control message …

Civil Engineering Research In Ireland 2020: Conference Proceedings, Kieran Ruane, Vesna Jaksic, Bidisha Ghosh, Magdalena Hajdukiewicz, Ciaran Hanley, Niall Holmes, Jennifer Keenahan, Zili Li, Patrick Mcgetrick, Ted Mckenna, Mary Moloney, Vikram Pakrashi, Niamh Power

Publications

Civil Engineering Research in Ireland 2020: Conference Proceedings.

Book Review: High-Impact Practices In Online Education, Emily Faulconer

Publications

This document is Dr. Faulconer’s review of High-Impact Practices in Online Education, 2018. 221p ISBN 978-1-62036-847-3 (paperback), $35.00.

Can You Hear Me Later And Believe Me Now? Behavioral Law And Economics Of Chronic Repeated Ambient Acoustic Pollution Causing Noise-Induced (Hidden) Hearing Loss, Peter H. Huang, Kelly J. Poore

Publications

This Article analyzes the public health issues of Noise-Induced Hearing Loss (“NIHL”) and Noise-Induced Hidden Hearing Loss (“NIHHL”) due to Chronic Repeated Ambient Acoustic Pollution (“CRAAP”). This Article examines the clinical and empirical medical data about NIHL and NIHHL and its normative implications. It applies behavioral law and economics and information economics to advance legal policies to reduce CRAAP. Finally, this Article advocates changing individual and social attitudes about deafness and hearing loss to raise political awareness and social consciousness about NIHL and NIHHL. One way to change our attitudes is by practicing compassion, empathy, and kindness, including Loving-Kindness Mindfulness …

Set And Spike: Mentoring A Student-Athlete In Stem For Undergraduate Engineering Education Research, Leroy Long Iii, Mckenna D. Gooch

Publications

It is well known that student-athletes are more diverse and higher academic achievers, on average, than their collegiate peers. However, little research has explored the mentoring relationships of student-athletes who conduct undergraduate research. Unique challenges and opportunities exist for student-athletes and faculty when it comes to mentoring undergraduate research in fields like science, technology, engineering and math (STEM). Using a collaborative autoethnographic methodological approach and apprenticeship theory, our personal narratives detail how an engineering professor mentored a former engineering student-athlete for undergraduate engineering education research. We offer several findings and recommendations.

Monte Carlo Simulations Of Coupled Transient Seepage Flow And Compressive Stress In Levees, Fred Thomas Tracy, Ghada Ellithy, Jodi L. Ryder, Martin T. Schultz, Benjamin R. Breland, T. Chris Massey, Maureen K. Corcoran

Publications

The purpose of this research is to compare the results from two different computer programs of flow analyses of two levees at Port Arthur, Texas where rising water of a flood from Hurricane Ike occurred on the levees. The first program (Program 1) is a two-dimensional (2-D) transient finite element program that couples the conservation of mass flow equation with accompanying hydraulic boundary conditions with the conservation of force equations with accompanying x and y displacement and force boundary conditions, thus yielding total head, x displacement, and y displacement as unknowns at each finite element node. The second program (Program …

Astro2020 Apc White Paper. 2020 Vision: Towards A Sustainable Oir System, Sally Oey, Terry D. Oswalt, Tom Maccarone, Fred Walter, Charles Bailyn, Jay Gallagher, Todd Henry, Derek Buzasi, J. Allyn Smith, Rachael Beaton, Jim Webb, Brad Barlow, Misty Bentz, Leslie Hebb, Patrick Kelly, Jedidah Isler, Michael Meyer, John Salzer, Simone Scaringi

Publications

Open-access telescopes of all apertures are needed to operate a competitive and efficient national science program. While larger facilities contribute light-gathering power and angular resolution, smaller ones dominate for field of view, time-resolution, and especially, total available observing time, thereby enabling our entire, diversely-expert community. Smaller aperture telescopes therefore play a critical and indispensable role in advancing science. Thus, the divestment of NSF support for modest-aperture (1 – 4 m) public telescopes poses a serious threat to U.S. scientific leadership, which is compounded by the unknown consequences of the shift from observations driven by individual investigators to survey-driven science. Given …

Infographic: Career Readiness Challenge (Crc) Summary, Melanie Canfield, Leroy Long Iii, James J. Pembridge, Matthew Verleger Dr.

Publications

This infographic summarizes the final report from a study titled, Gamified Online Platform to Support Student-Athlete Career Readiness, funded by the NCAA Innovations in Research and Practice Grant Program. The purpose of the study was to create a gamified online career readiness program to enhance attitudes towards career planning and support the translation of professional competencies. Over a span of seven weeks, 116 student-athletes from Embry-Riddle Aeronautical University (ERAU) - Daytona Beach participated in the study. The student-athletes competed in three different sports. Among ERAU student-athletes, the highest contribution of professional competencies involved: a) leadership, b) communication and c) collaboration. …

Infographic: Black Unicorns - Pre-College Access To Stem And Non-Revenue Sports, Kobe Reese, Leroy Long Iii, Morris R. Council Iii, Sharnnia Artis

Publications

This infographic was created to support the article titled Black Unicorns: STEM Access for Black Student-Athletes in Non-Revenue Sports. The article is for the 3rd Annual Conference of CoNECD - Collaborative Network for Engineering and Computing Diversity. The infographic covers Black students' pre-college access to non-revenue generating sports and STEM. Suggested recommendations are included.

Supporting Safety Culture In Academia: Giving A Voice To Faculty, Emily K. Faulconer, Chelsea A. Lenoble

Publications

In the words of Sir Winston Churchill, “The difference between mere management and true leadership is communication.” Department leaders have a vital role to play at all institutional levels when it comes to achieving an optimal safety culture that promotes safety voice behavior.

At the university level, this role is to help the university develop a solid foundation that will support a strong safety culture. At this level, it can be a challenge to mobilize and sustain the necessary resources to effectively develop and communicate a clear, consistent message that is aligned with implicit and explicit reward structures.

Creating Diagnostic Assessments: Automated Distractor Generation With Integrity, Darryl Chamberlain, Russell Jeter

Publications

The goal of this paper is to propose a new method to generate multiple-choice items that can make creating quality assessments faster and more efficient, solving a practical issue that many instructors face. There are currently no systematic, efficient methods available to generate quality distractors (plausible but incorrect options that students choose), which are necessary for multiple-choice assessments that accurately assess students’ knowledge. We propose two methods to use technology to generate quality multiple-choice assessments: (1) manipulating the mathematical problem to emulate common student misconceptions or errors and (2) disguising options to protect the integrity of multiple-choice tests. By linking …

Infographic: Division 1 - Power 5 Football Stars In Stem, Sydney Jones, Leroy Long Iii

Publications

In this infographic, football stars studying degrees in science, technology, engineering, and math (STEM) are showcased. The infographic focuses on racial/ethnic minoritized students who pursue STEM degrees and play football at a university in a National Collegiate Athletic Association (NCAA) Division 1 - Power 5 conference. For each football star, their name, university and major are included. While pursuing majors such as biology, engineering and psychology, these diverse individuals provide counterexamples of who can pursue rigorous majors and high-demand sports.

Infographic: Division 1 And Stem, Mckenzie Jackson, Leroy Long Iii

Publications

In this infographic, basketball players studying degrees in science, technology, engineering, and math (STEM) are highlighted. The infographic focuses on female and male racial/ethnic minoritized students who pursue STEM degrees and play basketball at universities in a National Collegiate Athletic Association (NCAA) Division 1 conference. For each basketball player, their name, university, major and accomplishments are depicted. As STEM majors in fields like engineering and economics, these diverse students provide counterexamples of who can pursue rigorous majors and high-demand sports.

The Most Challenging Part? Selecting A Dissertation Topic For Aviation Research, Scott R. Winter, David S. Cross

Publications

In the U.S., more than 50%of students who complete the coursework for a Ph.D. cannot complete the dissertation. Students fail to complete their dissertation, hence their Ph.D., for several reasons, but most of them are within their control. Many students start the dissertation process without a clear vision of a dissertation's actual purpose and what makes a successful dissertation. Specific technical areas, such as aviation, can be incredibly challenging to navigate during the Ph.D. process. The purpose of this study was twofold. First, we wanted to write a paper that describes several techniques to help Ph.D. students set realistic foundations …

Ueb Parallel: Distributed Snow Accumulation And Melt Modeling Using Parallel Computing, Tseganeh Z. Gichamo, David G. Tarboton

Publications

The Utah Energy Balance (UEB) model supports gridded simulation of snow processes over a watershed. To enhance computational efficiency, we developed two parallel versions of the model, one using the Message Passing Interface (MPI) and the other using NVIDIA's CUDA code on Graphics Processing Unit (GPU). Evaluation of the speed-up and efficiency of the MPI version shows that the effect of input/output (IO) operations on the parallel model performance increases as the number of processor cores increases. As a result, although the computation kernel scales well with the number of cores, the efficiency of the parallel code as a whole …

An Analysis Of The Atmospheric Propagation Of Underground-Explosion-Generated Infrasonic Waves Based On The Equations Of Fluid Dynamics: Ground Recordings, Roberto Sabatini, Jonathan B. Snively, Michael P. Hickey, J. L. Garrison

Publications

An investigation on the propagation of underground-explosion-generated infrasonic waves is carried out via numerical simulations of the equations of fluid dynamics. More specifically, the continuity, momentum, and energy conservation equations are solved along with the Herzfeld-Rice equations in order to take into account the effects of vibrational relaxation phenomena. The radiation of acoustic energy by the ground motion caused by underground explosions is initiated by enforcing the equality, at ground level, between the component of the air velocity normal to the Earth's surface and the normal velocity of the ground layer. The velocity of the ground layer is defined semi-empirically …

Bayesian Characterization Of Main-Sequence Binaries In The Old Open Cluster Ngc 188, Roger E. Cohen, Ted Von Hippel, Aaron M. Geller

Publications

The binary fractions of open and globular clusters yield powerful constraints on their dynamical state and evolutionary history. We apply publicly available Bayesian analysis tools to a UBV RIJHKS photometric catalog of the open cluster NGC 188 to detect and characterize photometric binaries along the cluster main sequence. This technique has the advantage of self-consistently handling photometric errors, missing data in various bandpasses, and star-by-star prior constraints on cluster membership. Simulations are used to verify uncertainties and quantify selection biases in our analysis, illustrating that among binaries with mass ratios >0.5, we recover the binary fraction to better than …

Stellar Chromospheric Activity And Age Relation From Open Clusters In The Lamost Survey, Jiajun Zhang, Terry Oswalt, Jingkun Zhao, Xiangsong Fang, Gang Zhao, Xilong Liang, Xianhao Ye, Jing Zhong

Publications

No abstract provided.

Student Nutrition Access Center: Impact Analysis 2019, Amanda M. Hagman, Hayden Hoopes, Nelda Ault-Dyslin

Publications

Introduction: Access to nutritional food items is crucial to student well-being, which in turn is crucial to student success. Student success emerges from “the amount of physical and psychological energy that the student devotes to the academic experience” (Astin, 1984). Campus nutrition programs help students eliminate food security issues so that they can devote more energy to the academic experience. However, creating efficient and convenient nutrition programs requires that administrators understand the complexities of their implementation, their effect on specific student segments, and their effect on decisions to either persist at or leave an institution. This report explores the impact …

Aggie Recreation Center Impact Report Fall 2015 To Spring 2019, Amanda M. Hagman, Erik Dickamore, Daniel Lawrence, Mitchell Colver

Publications

Recreation facilities are an integral part of the university community. The Aggie Recreation Center is a place that helps foster a well balanced student. The ARC provides students with a myriad of opportunities for recreation, exercise, and community that can support students on their academic journey. This report explored the association between ARC facility use and student persistence to the next term at Utah State University. METHODS: Students recreation center use was captured with entry log-ins as students entered the facility. Students who had a record of using the facility were compared to similar students who did not have a …

Steve And The Picket Fence: Evidence Of Feedback-Unstable Magnetosphere-Ionosphere Interaction, Evgeny Mishin, Anatoly Streltsov

Publications

This paper aims to extend the understanding of Strong Thermal Emission VelocityEnhancement (STEVE) and the Picket Fence related to strong subauroral ion drifts (SAID). Wenumerically demonstrated that precipitating energetic electrons are critical for the structuring of the PicketFence. It is created by feedback-unstable magnetosphere-ionosphere interactions driven by the SAIDelectric field when the Hall conductance created by energetic (≥1 keV) electrons exceeds the Pedersenconductance. We show that thermal excitation of the red-line emission in STEVE is inhibited by inelasticcollisions with molecular nitrogen. Suprathermal (≤500 eV) electrons coming from the turbulentplasmasphere appear to be the major source. We also show that the …

Exploratory Advising Impact Report: Spring 2016 To Spring 2019, Amanda M. Hagman, Mykel Beorchia, Stephanie Hamblin, Mitchell Colver

Publications

Academic advising performs a pivotal contribution to student success by providing information about univeristy expectations and avenues towards graduation. Exploratory student advising has the additional task of supporting students in major selection. This analysis investigated the relationship between academic advising and student persistence for exploratory students to better understand the impact of current advising practices. METHODS: Exploratory academic advisors met with an average 53% of exporatory students each semester. Students with a record of meeting with an academic advisor were compared to similar exploratory students who did not. Students were compared using prediction-based propensity score matching. Students who met with …

Determination Of Global Mean Eddy Diffusive Transport In The Mesosphere And Lower Thermosphere From Atomic Oxygen And Carbon Dioxide Climatologies, G. R. Swenson, C. C. J. H. Salinas, F. Vargas, Y. Zhu, M. Kaufmann, M. Jones Jr., A. Liu, Et Al.

Publications

Quantifying the eddy diffusion coefficient profile in the mesosphere and lower thermosphere (MLT) is critical to the constituent density distributions in the upper mesosphere and thermosphere. Previous work by Swenson et al. (2018, https://doi.org/10.1016/j.jastp.2018.05.014) estimated the global mean eddy diffusion (kzz) values in the upper mesosphere using atomic oxygen (O), derived from Sounding of the Atmosphere using Broadband Emission Radiometry (SABER) hydroxyl (OH). In this study, vertical eddy diffusive transport velocities of O were determined from continuity of mass in the mesopause region (80–97 km), primarily via the HOx chemistry. Global average constituent climatology from previously deduced SABER ozone (O3) …