Digital Commons Network^™

October 1, 2019, The Dakota Student

The Dakota Student

No abstract provided.

September 24, 2019, The Dakota Student

The Dakota Student

No abstract provided.

September 17, 2019, The Dakota Student

The Dakota Student

No abstract provided.

September 13, 2019, The Dakota Student

The Dakota Student

No abstract provided.

September 10, 2019, The Dakota Student

The Dakota Student

No abstract provided.

A Test-Bed For Measuring Uas Servo Reliability, Abdelrahman Elsaid, Daniel Kwasi Adjekum, John Nordlie, Fatima El Jamiy

Aviation Faculty Publications

Extant literature suggests minimal research on the reliability of Commercial off-the-shelf (COTS) components used in fabricating non-military Unmanned Aerial System (UAS). Stochastic failures of components during operational cycles over time poses a safety hazard to flight operations. The purpose of the study was to critically assess the operational performance standards (reliability) of a laboratory designed UAS component test-bed operated using real-world data collected from a Boeing Scan Eagle^® UAS aileron servo unit via a flight data recorder. The study hypothesized that the test-bed’s reliability, in terms of a measured encoder output of commanded servo positions, will not be significantly …

Identifying Patients With Coronary Artery Disease Using Rest And Exercise Seismocardiography, Parastoo Dehkordi, Erwin P. Bauer, Kouhyar Tavakolian, Vahid Zakeri, Andrew P. Blaber, Farzad Khosrow-Khavar

Electrical Engineering Faculty Publications

Coronary artery disease (CAD) is the most common cause of death globally. Patients with suspected CAD are usually assessed by exercise electrocardiography (ECG). Subsequent tests, such as coronary angiography and coronary computed tomography angiography (CCTA) are performed to localize the stenosis and to estimate the degree of blockage. The present study describes a non-invasive methodology to identify patients with CAD based on the analysis of both rest and exercise seismocardiography (SCG). SCG is a non-invasive technology for capturing the acceleration of the chest induced by myocardial motion and vibrations. SCG signals were recorded from 185 individuals at rest and immediately …

Efficacy Of Open Textbook Adoption On Learning Performance And Course Withdrawal Rates: A Meta-Analysis, Virginia Clinton, Shafiq Khan

Education, Health & Behavior Studies Faculty Publications

Open textbooks have been developed in response to rising commercial textbook costs and copyright constraints. Numerous studies have been conducted to examine open textbooks with varied findings. The purpose of this study is to meta-analyze the findings of studies of postsecondary students comparing learning performance and course withdrawal rates between open and commercial textbooks. Based on a systematic search of research findings, there were no differences in learning efficacy between open textbooks and commercial textbooks (k = 22, g = 0.01, p = .87, N = 100,012). However, the withdrawal rate for postsecondary courses with open textbooks was significantly lower …

Und Today: September 2019, University Of North Dakota

UND Today Archive

No abstract provided.

A Comparison Of Drone Imagery And Ground-Based Methods For Estimating The Extent Of Habitat Destruction By Lesser Snow Geese (Anser Caerulescens Caerulescens) In La Pérouse Bay, Andrew Barnas, Brian J. Darby, Gregory S. Vandeberg, Robert F. Rockwell, Susan N. Ellis-Felege

Biology Faculty Publications

Lesser snow goose (Anser caerulescens caerulescens) populations have dramatically altered vegetation communities through increased foraging pressure. In remote regions, regular habitat assessments are logistically challenging and time consuming. Drones are increasingly being used by ecologists to conduct habitat assessments, but reliance on georeferenced data as ground truth may not always be feasible. We estimated goose habitat degradation using photointerpretation of drone imagery and compared estimates to those made with ground-based linear transects. In July 2016, we surveyed five study plots in La Pérouse Bay, Manitoba, to evaluate the effectiveness of a fixed-wing drone with simple Red Green Blue …

A Comparison Of Drone Imagery And Groundbased Methods For Estimating The Extent Of Habitat Destruction By Lesser Snow Geese (Anser Caerulescens Caerulescens) In La Pérouse Bay, Andrew F. Barnas, Brian J. Darby, Gregory S. Vandeberg, Robert F. Rockwell, Susan N. Ellis-Felege

Biology Faculty Publications

Lesser snow goose (Anser caerulescens caerulescens) populations have dramatically altered vegetation communities through increased foraging pressure. In remote regions, regular habitat assessments are logistically challenging and time consuming. Drones are increasingly being used by ecologists to conduct habitat assessments, but reliance on georeferenced data as ground truth may not always be feasible. We estimated goose habitat degradation using photointerpretation of drone imagery and compared estimates to those made with ground-based linear transects. In July 2016, we surveyed five study plots in La Pérouse Bay, Manitoba, to evaluate the effectiveness of a fixed-wing drone with simple Red Green Blue …

Improving Student Attitudes Toward Discussion Boards Using A Brief Motivational Intervention, Virginia Clinton, Alison E. Kelly

Education, Health & Behavior Studies Faculty Publications

Discussion boards are tools to afford student interaction and engagement in online courses, but students often have negative attitudes toward discussion boards. The purpose of this study was to determine whether an intervention informing students of the usefulness of online discussion boards affected their attitudes toward discussion boards. The instructor randomly assigned students (N = 65) to view a video and answer an essay question on either the benefits of discussion boards (treatment) or how discussion boards were graded (control). Students in the treatment condition indicated discussion boards as being more useful than did students in the control condition, p …

The Effects Of A Sex Positive Sexual Violence Prevention Program On College Women, Natalie Marian Raymond

Theses and Dissertations

The development of effective sexual violence prevention programming has been an effort spanning several decades, while prevalence of such violence remains high. The present study describes the development and evaluation of a violence prevention program (Relationships, Sexuality, and Violence Prevention: RSVP) for women that draws from other types of interventions, and is grounded in Social Cognitive Theory and current research-generated recommendations.

The evaluation of the program measured change between treatment and control group college women on a number of relevant factors: (a) rape myth acceptance, (b) sexual double standards, (c) positive sexual self-understanding, (d) sexual communication, (e) sexual consent understanding, …

Understanding The Molecular And Cellular Functions Of Odd-Skipped Related 1 In Outflow Tract Development, Menglan Xiang

Theses and Dissertations

The cardiac outflow tract (OFT) is a transient conduit that connects the embryonic heart chambers to the vascular network. Transcription factor Osr1 promotes the proliferation and cell cycle progression of second heart field (SHF), an essential cell population that contribute to the developing OFT. In this study, we investigated the role of Osr1 in OFT development on cellular and molecular levels using a systems biology approach. We observed OFT rotation and elongation defects, as well as double-outlet right ventricle and overriding aorta as a result of SHF-specific deletion of Osr1. Using genetic inducible fate mapping, we showed that Osr1-expressing SHF …

Constituent Order And Participant Reference In Napo Quichua Narrative Discourse, Larinda Moffitt

Theses and Dissertations

Napo Quichua is a Quechuan language variety spoken along the Napo River in Northern Peru and Southern Ecuador. This thesis presents a description of the constituent order and participant reference system of oral narrative discourse. The primary data source for this study consists mostly of folk tales told by native speakers, with a few autobiographical accounts.

Napo Quichua is an SOV language with a relatively high degree of variation in constituent order. Constituent order variations are motivated by the guiding principles of information structure, including showing focus, highlighting information, and backgrounding information. Constituent order and participant reference also interact to …

Using Context To Communicate: Romanian Sign Language Learners And Their Communication Strategies, Rebecca Melville

Theses and Dissertations

This study focuses on the communication strategies used by second language learners of Romanian Sign Language (LSR), including learners of different proficiency levels, and investigates whether the learner’s proficiency level affects the kinds or variety of communication strategies they use. Unlike previous studies of communication strategies by language learners, it focuses on learners of a signed rather than a spoken language.

The study consisted of two tasks—the first being a structured task where the learner was given a list of ten words to communicate to an interlocutor (a Deaf native signer). The second task was less structured and asked the …

Volume 56, Number 46: July 03, 2019, University Of North Dakota

University Letter Archive

No abstract provided.

A Regime-Based Evaluation Of Southern And Northern Great Plains Warm-Season Precipitation Events In Wrf, Jingyu Wang, Xiquan Dong, Aaron Kennedy, Brooke Hagenhoff, Baike Xi

Atmospheric Sciences Faculty Publications

A competitive neural network known as the self-organizing map (SOM) is used to objectively identify synoptic patterns in the North American Regional Reanalysis (NARR) for warm-season (April–September) precipitation events over the Southern and Northern Great Plains (SGP/NGP) from 2007 to 2014. Classifications for both regions demonstrate contrast in dominant synoptic patterns ranging from extratropical cyclones to subtropical ridges, all of which have preferred months of occurrence. Precipitation from deterministic Weather Research and Forecasting (WRF) Model simulations run by the National Severe Storms Laboratory (NSSL) are evaluated against National Centers for Environmental Prediction (NCEP) Stage IV observations. The SGP features larger …

Vol. 44, No. 2: Summer 2019, School Of Medicine & Health Sciences

North Dakota Medicine Archive

No abstract provided.

Using “Research Boxes” To Enhance Understanding Of Primary Literature And The Process Of Science, Jeffrey S. Carmichael, Lizabeth A. Allison

Biology Faculty Publications

Helping undergraduate students engage with primary literature and understand the process of science are high-priority skills in most life science courses. Collaborative learning activities that enhance these skills will continue to be in high demand by instructors at all levels. Here we present a “Research Box” learning activity that helps students engage with primary research articles in a guided and collaborative fashion. Students summarize key components of an empirical study in a one-page figure. An assessment rubric is also included that can be easily modified by instructors to meet their specific needs. Assessment data from two institutions reveal that students …

Schlafen 3 Knockout Mice Display Gender-Specific Differences In Weight Gain, Food Efficiency, And Expression Of Markers Of Intestinal Epithelial Differentiation, Metabolism, And Immune Cell Function, Emilie E. Vomhof-Dekrey, Jun Lee, Jack Lansing, Chris Brown, Diane Darland, Marc D. Basson

Biology Faculty Publications

Self-renewal and differentiation are essential for intestinal epithelium absorptive functioning and adaptation to pathological states such as short gut syndrome, ulcers, and inflammatory bowel disease. The rodent Slfn3 and its human analog Slfn12 are critical in regulating intestinal epithelial differentiation. We sought to characterize intestinal function in Slfn3 knockout (KO) mice. Male and female pair-fed Slfn3KO mice gained less weight with decreased food efficiency than wild type (WT) mice, with more pronounced effects in females. RNA sequencing performed on intestinal mucosa of Slfn3KO and WT mice showed gene ontology decreases in cell adhesion molecule signaling, tumor necrosis factor receptor binding, …

Embodied Truths: How Dynamic Gestures And Speech Contribute To Mathematical Proof Practices, Elizabeth L. Pier, Candace Walkington, Virginia Clinton, Rebecca Boncoddo, Caroline Williams-Pierce, Martha W. Alibali, Mitchell J. Nathan

Education, Health & Behavior Studies Faculty Publications

Grounded and embodied theories of cognition suggest that both language and the body play crucial roles in grounding higher-order thought. This paper investigates how particular forms of speech and gesture function together to support abstract thought in mathematical proof construction. We use computerized text analysis software to evaluate how speech patterns support valid proof construction for two different tasks, and we use gesture analysis to investigate how dynamic gestures—those gestures that depict and transform mathematical objects—further support proof practices above and beyond speech patterns. We also evaluate the degree to which speech and gesture convey distinct information about mathematical reasoning …

Discordance Between The Sexual Experiences Surveys-Short Forms And The Revised Conflict Tactics Scales In College Men, Raeann E. Anderson, Shawn P. Cahill, Douglas D. Delahanty

Psychology Faculty Publications

Objective: Sexual victimization affects at least one in five college women and up to one in six college men; however, the exact rates of sexual perpetration are difficult to ascertain because of inconsistencies in the measurement of these behaviors. The present study is the first to evaluate the extent to which three commonly used measures of sexual violence (The Sexual Experiences Survey- Short Form Victimization (SES-SFV), The Sexual Experiences Survey-Short Form Perpetration (SES-SFP) and the Revised Conflicts Tactics Scales-Sexual Coercion Subscale (CTS2-SC)) concurred in identifying cases of sexual victimization and sexual perpetration. This is the first study to simultaneously examine …

The Frequency Of Sexual Perpetration In College Men: A Systematic Review Of Reported Prevalence Rates From 2000-2017, Raeann E. Anderson, Kristin E. Silver, Alyssa M. Ciampaglia, Amanda M. Vitale, Douglas L. Delahanty

Psychology Faculty Publications

Background: The prevalence of sexual perpetration in college men is unknown. Prior reviews of sexual violence prevalence rates have produced wide-ranging estimates, likely due to wide variation in measurement strategies.

Objectives: This paper systematically reviewed research findings (from 2000-2017) regarding prevalence rates of sexual perpetration in college men and measurement strategies.

Data Sources: PsycINFO and Web of Science databases.

Eligibility Criteria: Empirical reports published between 2000-2017 that included male participants, available in English, and reported lifetime prevalence findings in Canadian or American college students.

Participants: Data from 78 independent samples including 25,524 college men.

Results …

Und Today: July 2019, University Of North Dakota

UND Today Archive

No abstract provided.

Laboratory Studies Of Rich Gas Interactions With Bakken Crude Oil To Support Enhanced Oil Recovery, Steven B. Hawthorne, James A. Sorensen, David J. Miller, Charles D. Gorecki, John A. Harju, Gordon Pospisil

EERC Publications, Papers, & Presentations

Lab studies are being conducted to determine the effect of different rich gases on their potential to enhance Bakken crude oil recovery. These include measuring the MMP of Bakken crude oil with different candidate gas injectants and measuring the hydrocarbon composition in the “miscible” phase generated by crude oil/injectant exposures.

Laboratory Investigation Of Co2 Injectivity And Adsorption Potential Within The Bakken Formation, Steven A. Smith, Bethany A. Kurz, James A. Sorensen, Christopher J. Beddoe, Blaise A.F. Mibeck, Alexander Azenkeng, Steven B. Hawthorne, Charles D. Gorecki

EERC Publications, Papers, & Presentations

To assess CO₂ injectivity and storage potential within the organic-rich shales and middle member of the Bakken Formation, a series of laboratory tests were performed.

Unconventional Rock Requires Unconventional Analysis: Methods For Characterization, Shane K. Butler, Alexander Azenkeng, Blaise A.F. Mibeck, Bethany A. Kurz, Kurt E. Eylands

EERC Publications, Papers, & Presentations

Advanced image analysis techniques were applied to better understand and quantify factors that could affect CO₂ storage in the Bakken Formation, with an ultimate goal of improved method development to estimate CO₂ storage potential of unconventional reservoirs.

Uas In Public Safety: The Genie Is Out Of The Bottle, Alan Frazier

Aviation Faculty Publications

No abstract provided.

Juvenile Risk Assessment: Assessing The Evaluability And Predictive Validity Of The Youth Assessment And Screening Instrument For Use Among The North Dakota Juvenile Probation Population, Adam K. Matz, Adrian R. Martinez

Criminal Justice Faculty Publications

Risk assessment using an actuarial instrument represents one of eight core evidence-based practices (EBP) in community supervision recognized by the National Institute of Corrections (NIC). Despite the widespread adoption of a variety of instruments, many jurisdictions have not assessed their predictive validity. This research examines the evaluability of a risk assessment instrument, the Youth Assessment & Screening Instrument (YASI), adopted by the North Dakota Juvenile Court. The instrument has been in use since 2002. While studies of the YASI from New York State, Illinois, and Canada provide some confidence in the instrument's predictive accuracy, questions still remain concerning its applicability …