Digital Commons Network^™

Development Of A Descriptive Model Of Flow Disruption Effect On Bypass Time In A Cardiovascular Operating Room, Timothy J. Disher

Doctoral Dissertations and Master's Theses

The current paper proposes utilizing extant flow disruption data, collected from two cardiovascular operating rooms, and utilizing that to develop a mathematical model. Of particular interest is bypass time which is a critical surgical phase, the length of which has been linked to post-operation complications such as hospital-borne infections and readmission. By developing a model that predicts bypass time, the present research can determine the impact by types of flow disruptions – coded based on the RIPCHORD-TWA taxonomy, team member disrupted, and where in the surgery the FD occurs.

After a review of literature, a variety of models were explored …

Smart Building And Construction Materials, Donglu Shi, Julian Wang, Wen Deng

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

No abstract provided.

Initial Implementation Of A Machine Learning System For Srf Cavity Fault Classification At Cebaf, A. Carpenter, K. M. Iftekharuddin, T. Powers, Y. Roblin, A. Solopava Shabalina, C. Tennant, L. Vidyaratne

Electrical & Computer Engineering Faculty Publications

The Continuous Electron Beam Accelerator Facility (CEBAF) at Jefferson Laboratory is a high power Continuous Wave (CW) electron accelerator. It uses a mixture of of SRF cryomodules: older, lower energy C20/C50 modules and newer, higher energy C100 modules. The cryomodules are arrayed in two anti-parallel linear accelerators. Accurately classifying the type of cavity faults is essential to maintaining and improving accelerator performance. Each C100 cryomodule contains eight 7-cell cavities. When a cavity fault occurs within a cryomodule, all eight cavities generate 17 waveforms each containing 8192 points. This data is exported from the control system and saved for review. Analysis …

Special Issue On Low Temperature Plasma Jets, Mounir Laroussi

Electrical & Computer Engineering Faculty Publications

[Introduction] Low temperature plasma jets are unique plasma sources capable of delivering plasma outside of the confinement of electrodes and away from gas enclosures/chambers. With these jets plasma can be easily delivered to a target located at some distance from the plasma generation region [1].

Maximizing Performance Under A Power Constraint On Modern Multicore Systems, Vaibhav Sundriyal, Masha Sosonkina, Bryce Westheimer, Mark S. Gordon

Electrical & Computer Engineering Faculty Publications

Energy efficiency and energy-proportional computing have become a central focus in modern supercomputers. These supercomputers should provide high throughput per unit of power to be sustainable in terms of operating cost and failure rates. In this paper, a power-bounded strategy is proposed that maximizes parallel application performance under a given power constraint. The strategy dynamically allocates power to core, uncore, and memory power domains within a node to maximize performance under a given power budget. Experiments on a 20-core Haswell-EP platform for a real-world parallel application GAMESS demonstrate that the proposed strategy delivers performance within 4% of the best possible …

Metastatic Vertebral Lesion Mimicking An Atypical Hemangioma With Negative 18f-Fdg Positron Emission Tomography-Computed Tomography, Ana Cecilia Belzarena Genovese

All Publications

Atypical hemangiomas of the spine can mimic metastatic lesions on magnetic resonance imaging, therefore making this distinction is a diagnostic challenge. In most cases, this conundrum can usually be solved with positron emission tomography/computed tomography images, because hemangiomas do not usually present with increased uptake while metastatic lesions do. Here we present a case of a patient with a unique diagnosis, myxoid liposarcoma, in which the vertebral metastatic lesion did not present with increased uptake in positron emission tomography/computed tomography scans. While keeping the imaging particularity of this rare sarcoma in mind, proceeding with a biopsy when the suspicion of …

Hildegard Of Bingen And The Four Temperaments Theory, Minji Lee

Department of Religion Faculty Scholarship and Creative Works

Hildegard of Bingen (1097-1178) was a German nun in the Benedictine order. As the youngest daughter of ten children, she realized she was chosen by God and started her religious life quite early. Hildegard made a vow at the age of eight and joined the woman’s religious community with her mentor Jutta at the age of fourteen. She confessed that she received her first vision when conceived in her mother’s womb. Her continuous reception of visions became officially known through her first visionary book, the Scivias, short for "Scito vias Domini," which took her ten years to complete. After this …

2019 Msu Benefits Guide, Morehead State University. Office Of Human Resources.

Staff Congress Records

2019 Morehead State University Benefits Guide.

Transfer Learning For Detecting Unknown Network Attacks, Juan Zhao, Sachin Shetty, Jan Wei Pan, Charles Kamhoua, Kevin Kwiat

VMASC Publications

Network attacks are serious concerns in today’s increasingly interconnected society. Recent studies have applied conventional machine learning to network attack detection by learning the patterns of the network behaviors and training a classification model. These models usually require large labeled datasets; however, the rapid pace and unpredictability of cyber attacks make this labeling impossible in real time. To address these problems, we proposed utilizing transfer learning for detecting new and unseen attacks by transferring the knowledge of the known attacks. In our previous work, we have proposed a transfer learning-enabled framework and approach, called HeTL, which can find the common …

Dimensionality And Factorial Invariance Of Religiosity Among Christians And The Religiously Unaffiliated: A Cross-Cultural Analysis Based On The International Social Survey Programme, Carlos Miguel Lemos, Ross Joseph Gore, Ivan Puga-Gonzalez, F. Leron Shults

VMASC Publications

We present a study of the dimensionality and factorial invariance of religiosity for 26 countries with a Christian heritage, based on the 1998 and 2008 rounds of the International Social Survey Programme (ISSP) Religion survey, using both exploratory and multi-group confirmatory factor analyses. The results of the exploratory factor analysis showed that three factors, common to Christian and religiously unaffiliated respondents, could be extracted from our initially selected items and suggested the testing of four different three-factor models using multi-group confirmatory factor analysis. For the model with the best fit and measurement invariance properties, we labeled the three resulting factors …

Impulse Measurements Of Electric Solid Propellant In An Electrothermal Ablation-Fed Pulsed Plasma Thruster, Matthew S. Glascock, Joshua L. Rovey, Kurt A. Polzin

Mechanical and Aerospace Engineering Faculty Research & Creative Works

Electric solid propellants are advanced solid chemical rocket propellants that can be controlled (ignited, throttled and extinguished) through the application and removal of an electric current. These propellants are also being considered for use in the ablative pulsed plasma thruster. In this paper, the performance of an electric solid propellant operating in an electrothermal ablation-fed pulsed plasma thruster was investigated using an inverted pendulum micro-Newton thrust stand. The impulse bit and specific impulse of the device using the electric solid propellant were measured for short-duration test runs of 100 pulses and longer-duration runs to end-of-life, at energy levels of 5, …

Electric Solid Propellant Ablation In An Arc Discharge, Matthew S. Glascock, Joshua L. Rovey, Kurt A. Polzin

Mechanical and Aerospace Engineering Faculty Research & Creative Works

Electric solid propellants are advanced solid chemical rocket propellants that can be controlled (ignited, throttled, and extinguished) through the application and removal of an electric current. Electric solid propellants are also being considered for pulsed arc ablation electric thrusters, such as the pulsed plasma thruster. The focus of this work is the electrical and ablation characteristics of electric solid propellant within an arc discharge. Arc discharges of 5–20 J per pulse were created within a cylindrical cavity, and results for the electric solid propellant are compared with polytetrafluoroethylene (PTFE), which is a traditional propellant in ablative pulsed plasma thrusters. The …

Thermodynamic And Transport Properties Of Hydroxylammonium Nitrate-Based Electric Solid Propellant Vapor, Matthew S. Glascock, Patrick D. Drew, Joshua L. Rovey

Mechanical and Aerospace Engineering Faculty Research & Creative Works

Electric solid propellants are advanced solid chemical rocket propellants controlled by electric current. Electric solid propellants may also be used in an electric propulsion system, specifically, an ablative pulsed plasma thruster. Previous experiments with the electric solid propellant HIPEP suggest its ablation processes are similar to traditional propellant polytetrafluoroethylene (C2F4). Better understanding of the ablation and resulting propulsion performance of HIPEP requires a model of its vapor composition and transport properties. This paper reports on the development of such a model. The model was validated by comparing results for C2F4 with literature, which showed agreement with multiple models described. Transport …

Experimental Investigation Of Mixtures Of 1-Ethyl-3-Methylimidazolium Ethyl Sulfate And Ethylammonium Nitrate With Electrospray Propulsion Applications, Mitchell J. Wainwright, Joshua L. Rovey, Shawn W. Miller, Benjamin D. Prince

Mechanical and Aerospace Engineering Faculty Research & Creative Works

Physical properties, performance metrics, and mass spectra of mixtures of two ionic liquids (1-ethyl-3-methylimidazolium ethyl-sulfate aka [Emim][EtSO4] and ethyl ammonium nitrate aka EAN) are investigated from the standpoint of electrospray propulsive characteristics. Spectra suggest that as the [Emim][EtSO4] mixture fraction increases, the intensity of [Emim][EtSO4] related species in the plume also increases, while the presence of EAN decreases. Spectra also show presence of both EAN proton transfer species and species related to chemical reaction of [EtSO4] and water. Despite the volatility of EAN, it emits stably into vacuum at low flow rates when mixed with 25% [Emim][EtSO4]. Spectra also show …

Visible/Invisible: Female Astronauts And Technology In Star Trek: Discovery And National Geographic’S Mars, Amanda R. Keeler

College of Communication Faculty Research and Publications

This article examines the newest television programme in the Star Trek franchise, Star Trek: Discovery (2017–) and National Geographic’s part-documentary, part-fictional series Mars (2016–). I argue that Discovery and Mars make visible the depiction of developing technology and a breadth and depth of female astronaut characters, two elements that have been historically marginalised in sf narratives such as Star Trek: The Original Series (1966–9). Discovery and Mars both emphasise the purposeful centrality of female characters and their positions of authority as female astronauts and ship leaders. Each programme also foregrounds the representation and framing of technology, emphasising the not-yet-perfect science …

Women Creatives And Machismo In Mexican Advertising: Challenging Barriers To Success, Marta Mensa Torra, Jean M. Grow

College of Communication Faculty Research and Publications

This study explores the experiences of women working as creatives in Mexican advertising creative departments. It is based on 22 in-depth interviews and suggests that these women face significant challenges within the machismo culture, which permeates Mexican advertising creative departments. Mexico plays an important role in global advertising, particularly in Latin America, but in this country female workers only represent five per cent of those working in creative departments. This is the first study focused on Mexican women creatives in advertising, highlighting the confluence of advertising women creatives and Mexican culture. Analysis reveals ten subcategories which articulate the horizontal and …

A Brief Overview Of The Christian Endeavor Society, Brian Clifford Hull

Books

No abstract provided.

Applications Of An Unmanned Aircraft Vehicle And Remote Cameras For Studying A Sub-Arctic Ecosystem, Andrew Barnas

Theses and Dissertations

The midcontinent population of lesser snow geese (Anser caerulescens caerulescens) has increased dramatically since the 1960’s due to changing agricultural practices in their southern wintering areas. The destructive foraging and continued population growth of lesser snow geese has resulted in cascading negative impacts on northern ecosystems. Studying remote sub-Arctic ecosystems is logistically challenging, but the advent of remote sensing technologies (such as drones and remote cameras) may assist ecologists in understanding snow goose ecology. Before these tools can be integrated into snow goose research programs, precursor “proof-of-concept” studies are required to validate tool use. The objectives of this study were …

Presence And Characterization Of Microplastics In Drinking (Tap/Bottled) Water And Soft Drinks, Mansurat Golden Abdulmalik Ali

Theses and Dissertations

This study investigates the presence of microplastics in human consumable products using 33 samples; Fifteen tap water samples, nine bottled water and nine soft drink samples, collected and purchased in Grand Forks, ND.

Tap water analysis confirm all samples contain microplastics, majority of which were fibres and fragments with 48.6% and 41.8% abundance. The average concentration was 182 mpp/L (range 66 mpp/L – 472 mpp/L) with 2.5 µm – 3 mm size range. Bottled water and soft drinks were also contaminated with microplastics with an average of 101 mpp/L (range 49 mpp/L – 166 mpp/L) and particle size ranging from …

Proficiency Exams Timing, Registrar

Executive Actions

No abstract provided.

The Effects Of Motivational Interviewing On Minority Clients In Vocational Rehabilitation, Cindy Khan-Jordan

Faculty and Staff Publications & Presentations

Motivation can foster engagement in the Vocational Rehabilitation (VR) program leading to benefits that can potentially result in sustainable employment. The purpose of this study was to examine the impact of Motivational Interviewing using the Motivation Curriculum for Vocation Rehabilitation Consumers (MCRC) on stages of change, self-determination, functional disability limitations awareness and life satisfaction on minority and non-minority VR clients with disabilities that had open cases with The Florida Division of Vocational Rehabilitation.

Adaptive Signatures In Thermal Performance Of The Temperate Coral Astrangia Poculata, H. E. Aichelman, Richard C. Zimmerman, Daniel J. Barshis

Biological Sciences Faculty Publications

Variation in environmental characteristics and divergent selection pressures can drive adaptive differentiation across a species' range. Astrangia poculata is a temperate scleractinian coral that provides unique opportunities to understand the roles of phenotypic plasticity and evolutionary adaptation in coral physiological tolerance limits. A. poculata inhabits hard bottom ecosystems from the northwestern Atlantic to the Gulf of Mexico and withstands an annual temperature range up to 20° C. Additionally, A. poculata is facultatively symbiotic and co-occurs in both symbiotic ("brown") and aposymbiotic ("white") states. Here, brown and white A. poculata were collected from Virginia (VA) and Rhode Island (RI), USA and …

Sponges Structure Water-Column Characteristics In Shallow Tropical Coastal Ecosystems, Marla M. Valentine, Mark J. Butler Iv

Biological Sciences Faculty Publications

Sponges can have powerful effects on ecosystem processes in shallow tropical marine ecosystems. They drive benthic-pelagic coupling by filtering dissolved and particulate organic matter from the water column, alter water chemistry in association with their symbiotic microorganisms, and increase habitat structural complexity. Anthropogenic degradation of coastal waters is widespread and can reduce the density and diversity of foundation species such as sponges, potentially diminishing their contributions to ecosystem processes. We used a novel mesocosm design that minimized artifacts associated with traditional single-species and closed-system filtration experiments to examine the effects of water turnover and sponge biomass on water-column properties. Using …

Writing And Evaluating The Effectiveness Of A Modern Physics Laboratory Manual, Brendan Jacob Pickard

Master's Theses and Doctoral Dissertations

Undergraduate physics laboratory activities are the main way that students get to apply physics concepts and develop experimental skills. Consequently, the presentation of experimental techniques is exceedingly important, and a poorly constructed guide could hinder student success. I have created a lab manual for use in PHY 372 Modern Physics Laboratory at Eastern Michigan University (EMU). This lab manual helps students develop experimental skills valuable in their future careers in a variety of fields. I evaluated the teaching effectiveness of the lab manual using a survey at the end of the Fall 2017 semester, revised the lab manual, and evaluated …

Pre-Service Teachers’ Emerging Views On Educational Equity, Melody Wilson

Master's Theses and Doctoral Dissertations

An equity-based Statistics course for pre-service mathematics teachers could play a role in the development of pre-service teachers’ equity literacy, encouraging conversations about equity in education and illuminating structural factors that contribute to the educational opportunity gap in the U.S. In the Winter 2019 semester, a faculty team at the author’s university piloted such a course. The course included data explorations dealing with structural inequities by race – one of the most difficult topics to address productively in a teacher preparation course. For the present study, a survey of pre-service teachers’ views on educational equity was administered in a required …

“But How Could We Sing A Song Of The Lord In A Foreign Land?” An Esl/Esp Class For Catholic Immigrants, Mary C. Tillotson

Master's Theses and Doctoral Dissertations

The U.S. Catholic population has a larger proportion of immigrants than the U.S. population at large. The majority of Catholic immigrants come from Latin America and are not native speakers of English. In this qualitative study, I interviewed nine Catholic immigrants from Latin America to better understand their experiences of navigating their Catholic faith in the United States and the role an English-as-a-second-language (ESL) class could play in helping them successfully adjust to United States Catholicism. Findings suggest that, beyond a general ESL class, an English-for-specific-purposes class, capitalizing on the universality of Catholicism and specialized for Catholic prayer, liturgy, sacraments, …

Habitat Saturation Results In Joint-Nesting Female Coalitions In A Social Bird, Sahas Barve, Walter D. Koenig, Joseph Haydock, Eric L. Walters

Biological Sciences Faculty Publications

Joint nesting by females and cooperative polyandry—cooperatively breeding groups with a male-biased breeder sex ratio—are little-understood, rare breeding systems. We tested alternative hypotheses of factors potentially driving these phenomena in a population of joint-nesting acorn woodpeckers (Melanerpes formicivorus). During periods of high population density and thus low independent breeding opportunities, acorn woodpecker females formed joint-nesting coalitions with close kin. Coalitions were typically associated with groups with a male bias. We found strong evidence for both inter- and intrasexual conflict, as joint nesting conferred a fitness benefit to some males, a significant fitness cost to females, and no gain in per …

Gis Analysis Of The Mid-Nineteenth Century Emigration Of The Old Lutherans From Prussia, Joel Seewald

Master's Theses and Doctoral Dissertations

The Old Lutherans constituted fewer than 20% of the Germans who emigrated from Prussia between 1835 and 1854. In this study, more than 483 cities and villages of origin of 6,911 Old Lutherans were mapped. These origins were in the central provinces of Brandenburg, Pomerania, Posen, Saxony, and Silesia. More emigrants came from Pomerania overall and during every time period except 1849-54. The areas with the most emigrants were north central Pomerania, northern Brandenburg, southeast Brandenburg, and western Silesia. Emigrant destinations were primarily America and Australia. American destinations included New York, Wisconsin, and Texas, but the state that many went …

Seasonal Spatial Segregation In Blue Sharks (Prionace Glauca) By Sex And Size Class In The Northeast Pacific Ocean, Sara M. Maxwell, Kylie L. Scales, Steven Bograd, Dana K. Briscoe, Heidi Dewar, Elliott L. Hazen, Rebecca L. Lewison, Heather Welch, Larry B. Crowder

Biological Sciences Faculty Publications

Aim: Animal tracking can provide unique insights into the ecology and conservation of marine species, such as the partitioning of habitat, including differences between life history stages or sexes, and can inform fisheries stock assessments, bycatch reduction and spatial management such as dynamic management.

Location: Northeast Pacific Ocean.

Methods: We used satellite tracking data from 47 blue sharks (Prionace glauca) from the Northeast Pacific to determine movements and home range along the west coast of North America, and sex–size class (immature females, mature males) specific habitat preferences using boosted regression trees. Using a suite of static and dynamic …

The Successful Transition Of Black Men At Historically White Universities, Regina M. George

Master's Theses and Doctoral Dissertations

There is something going on with Black men in America who go to college. As university enrollment has become more diverse with all ethnic and economic groups attending in greater numbers, as Black women are graduating at unprecedented rates, as postsecondary education becomes an increasingly significant employment requirement, the persistence to graduation rate of Black men as a group is among the lowest. Historically White institutions of higher education seek to ensure academic success and increase 4-6 year graduation rates for all students. Perhaps Black men can inform the process and lift everyone with their knowledge. This is a qualitative …