Digital Commons Network^™

Neutron Scattering: A Subsurface Application Review, Mirhasan Hosseini, Muhammad Arif, Alireza Keshavarz, Stefan Iglauer

Research outputs 2014 to 2021

Geomaterials and filling fluids properties that are pertinent to a geologic porous media can be characterized using a range of methods, such as nuclear magnetic resonance, X-rays, infrared spectroscopy, and neutron scattering (NS). In this context, NS features as an important tool elucidate key properties of a porous medium, which has recently gained significant attention. Key rock properties that can be measured by NS include: rock texture (i.e. crystallographic preferred orientation), mechanical properties (i.e. stress and strain) as well as porous medium properties (pore porosity, pore size and connectivity). In addition, NS imaging can help elucidate the phase behaviour of …

Forensic Experts’ Perspectives On Australian Indigenous Sexual Offenders And Factors Important In Evaluating The Risk Of Recidivism, Alfred Allan, Cate L. Parry, Hilde Tubex, Caroline Spiranovic, Frank Morgan

Research outputs 2014 to 2021

Law and ethics require that risk assessment should be cross-culturally valid and fair, but Australian research in this regard is underdeveloped. A logical first step in progressing the work required to build a strong evidence base on culturally sensitive risk assessment in Australia is to determine the expert views of those in the field. We interviewed 13 Australian evaluators who assess Indigenous sexual offenders’ recidivism risk to determine their perceptions of the risk assessment instruments they use and the attributes they believe evaluators doing cross-cultural assessments should have. Our central findings are that evaluators use the available instruments because they …

Awareness And Knowledge Of Developmental Coordination Disorder: A Survey Of Caregivers, Teachers, Allied Health Professionals And Medical Professionals In Australia, Jacqui Hunt, Jill G. Zwicker, Erin Godecke, Annette Raynor

Research outputs 2014 to 2021

Background:

To allow for accurate and timely diagnosis of developmental coordination disorder (DCD) key stakeholders must be familiar with and be able to identify features of this disorder. No studies to date have investigated the awareness of DCD among key stakeholders in Australia.

Methods:

An online survey was complete by 494 Australian participants: primary caregivers (n = 153), teachers (n = 149), allied health professionals (n = 165) and medical professionals (n = 27).

Results:

DCD and related terms were among the least known childhood disorders. Approximately half of the sample were familiar with the term …

Federated Deep Learning For Cyber Security In The Internet Of Things: Concepts, Applications, And Experimental Analysis, Mohamed Amine Ferrag, Othmane Friha, Leandros Maglaras, Helge Janicke, Lei Shu

Research outputs 2014 to 2021

In this article, we present a comprehensive study with an experimental analysis of federated deep learning approaches for cyber security in the Internet of Things (IoT) applications. Specifically, we first provide a review of the federated learning-based security and privacy systems for several types of IoT applications, including, Industrial IoT, Edge Computing, Internet of Drones, Internet of Healthcare Things, Internet of Vehicles, etc. Second, the use of federated learning with blockchain and malware/intrusion detection systems for IoT applications is discussed. Then, we review the vulnerabilities in federated learning-based security and privacy systems. Finally, we provide an experimental analysis of federated …

Feasibility, Safety, And Acceptability Of A Remotely Monitored Exercise Pilot Champ: A Clinical Trial Of High-Intensity Aerobic And Resistance Exercise For Metastatic Castrate-Resistant Prostate Cancer, Stacey A. Kenfield, Erin L. Van Blarigan, Neil Panchal, Alexander Bang, Li Zhang, Rebecca E. Graff, Yea-Hung Chen, Charles J. Ryan, Anthony Luke, Robert U. Newton, Imelda Tenggara, Brooke Schultz, Elizabeth Wang, Emil Lavaki, Kyle Zuniga, Nicole Pinto, Hala Borno, Rahul Aggarwal, Terence Friedlander, Vadim S. Koshkin, Andrea Harzstark, Eric Small, June M. Chan

Research outputs 2014 to 2021

Background: Exercise may improve clinical and quality of life outcomes for men with prostate cancer. No randomized controlled trials (RCTs) have examined the feasibility, safety, and acceptability of remote exercise training in men with metastatic castrate-resistant prostate cancer (mCRPC). Methods: We conducted a pilot RCT (1:1:1 aerobic or resistance exercise 3x/week or usual care) to determine the feasibility, safety, and acceptability of remotely monitored exercise over 12 weeks in 25 men with mCRPC. A prescribed exercise program was based on baseline testing including high- and moderate-intensity aerobic exercise or resistance exercise completed at a local exercise facility. Feasibility was based …

Development Support Of Early Career Researchers In The Netherlands: Lessons For Australia, Craig P. Speelman

Research outputs 2014 to 2021

Australian universities are faced with the imminent retirement of a large proportion of their researchers. One way to avoid a decrement in research performance is to consider greater support for early career researchers (ECRs). To investigate how another university system that is ranked high in research performance supports its ECRs several universities in the Netherlands were visited. Seventeen senior academic staff in these universities were interviewed to examine their perceptions of the support that is provided for the development of ECRs, and the nature of the research environment in which they are employed. Interviews were recorded, transcribed, and coded using …

The Support Person's Preferences And Perspectives Of Physical Activity Programs For Older Adults With Cognitive Impairment, Terence W. H. Chong, Emily You, Kathryn A. Ellis, Kay L. Cox, Karra D. Harrington, Stephanie R. Rainey-Smith, David Ames, Nicola T. Lautenschlager, Aibl Research Group

Research outputs 2014 to 2021

Objectives: Physical activity (PA) is beneficial for older adults' cognition. There is limited research investigating perspectives of support persons (SPs) of next-of-kins (NOKs) with cognitive impairment. This exploratory study aimed to investigate perspectives of SPs of older adults with Alzheimer's Dementia (AD) or Mild Cognitive Impairment (MCI). Methods: A telephone survey of 213 SPs of NOKs from the Australian Imaging, Biomarkers and Lifestyle Flagship Study of Ageing (AIBL) was undertaken to quantitatively assess SPs' beliefs and knowledge about PA benefits, current PA level of their NOK, and PA program preferences. The contribution of age, gender, diagnosis and mental health symptoms …

Numerical Investigation Of Microchannel Heat Sink With Trefoil Shape Ribs, Sadiq Ali, Faraz Ahmad, Kareem Akhtar, Numan Habib, Muhammad Aamir, Khaled Giasin, Ana Vafadar, Danil Yurievich Pimenov

Research outputs 2014 to 2021

The present study investigates the thermo-hydraulic characteristics of a microchannel sink with novel trefoil Shaped ribs. The motivation for this form of rib shape is taken from the design of lung alveoli that exchange oxygen and carbon dioxide. This study has been conducted numerically by using a code from the commercially available Fluent software. The trefoil shaped ribs were mounted on the centerline of different walls of the microchannel in three different configurations. These consisted of base wall trefoil ribs (MC-BWTR), sidewall trefoil ribs (MC-SWTR), all wall trefoil ribs (MC-AWTR) and smooth channel (MC-SC) having no ribs on its wall. …

Uncovering Real Earnings Management: Pay Attention To Risk-Taking Behavior, Samar Alharbi, Md Al Mamun, Nader Atawnah

Research outputs 2014 to 2021

We examine the impact of corporate risk-taking on firm-level real earnings management. We find that firms with higher risk-taking engage in higher real earnings management. Our results are robust to a series of robustness tests, including simultaneous least squares approach, firm fixed effect, change analysis, and pseudo difference-in-difference analysis. Additional analyses reveal that the impact of risk-taking on real earnings management is more pronounced among firms that experience prior-year loss and are run by top-echelons who are risk lovers. Sarbanes-Oxley Act (SOX) regulation does not attenuate the positive effect of risk-taking on real earnings management. However, external monitoring by institutional …

Short Word-Length Entering Compressive Sensing Domain: Improved Energy Efficiency In Wireless Sensor Networks, Nuha A. S. Alwan, Zahir M. Hussain

Research outputs 2014 to 2021

This work combines compressive sensing and short word-length techniques to achieve localization and target tracking in wireless sensor networks with energy-efficient communication between the network anchors and the fusion center. Gradient descent localization is performed using time-of-arrival (TOA) data which are indicative of the distance between anchors and the target thereby achieving range-based localization. The short word-length techniques considered are delta modulation and sigma-delta modulation. The energy efficiency is due to the reduction of the data volume transmitted from anchors to the fusion center by employing any of the two delta modulation variants with compressive sensing techniques. Delta modulation allows …

Risk Factors For Gut Dysbiosis In Early Life, Kimberley Parkin, Claus T. Christophersen, Valerie Verhasselt, Matthew N. Cooper, David Martino

Research outputs 2014 to 2021

Dysbiosis refers to a reduction in microbial diversity, combined with a loss of beneficial taxa, and an increase in pathogenic microorganisms. Dysbiosis of the intestinal microbiota can have a substantial effect on the nervous and immune systems, contributing to the onset of several inflammatory diseases. Epidemiological studies provided insight in how changes in the living environment have contributed to an overall loss of diversity and key taxa in the gut microbiome, coinciding with increased reports of atopy and allergic diseases. The gut microbiome begins development at birth, with major transition periods occurring around the commencement of breastfeeding, and the introduction …

Associations Between Genetic Variants In The Vitamin D Metabolism Pathway And Severity Of Covid-19 Among Uae Residents, Fatme Al-Anouti, Mira Mousa, Spyridon N. Karras, William B. Grant, Zainab Alhalwachi, Laila Abdel-Wareth, Maimunah Uddin, Nawal Alkaabi, Guan K. Tay, Bassam Mahboub, Habiba Alsafar

Research outputs 2014 to 2021

Vitamin D has many effects on cells in the immune system. Many studies have linked low vitamin D status with severity of COVID-19. Genetic variants involved in vitamin D metabolism have been implicated as potential risk factors for severe COVID-19 outcomes. This study investigated how genetic variations in humans affected the clinical presentation of COVID-19. In total, 646 patients with SARS-CoV-2 infection were divided into two groups: noncritical COVID-19 (n = 453; 70.12%) and a critical group (n = 193; 29.87%). Genotype data on the GC, NADSYN1, VDR, and CYP2R1 genes along with data on serum 25-hydroxyvitamin D levels were …

An Assessment Of The Hopping Strategy And Inter-Limb Asymmetry During The Triple Hop Test: A Test–Retest Pilot Study, Kyle Davey, Paul Read, Joseph Coyne, Paul Jarvis, Anthony Turner, Jon Brazier, Nejc Šarabon, Matthew J. Jordan, Chris Bishop

Research outputs 2014 to 2021

The aims of the present study are to: (1) determine within-and between-session reliability of multiple metrics obtained during the triple hop test; and (2) determine any systematic bias in both the test and inter-limb asymmetry scores for these metrics. Thirteen male young American football athletes performed three trials of a triple hop test on each leg on two separate occasions. In addition to the total distance hopped, manual detection of touch down and toe-off were calculated via video analysis, enabling flight time (for each hop), ground contact time (GCT), reactive strength index (RSI), and leg stiffness (between hops) to be …

Black Adventism In North America, Trevor O'Reggio

Faculty Publications

No abstract provided.

Modelling Climatic And Temporal Influences On Boating Traffic With Relevance To Digital Camera Monitoring Of Recreational Fisheries, Ebenezer Afrifa-Yamoah, Stephen M. Taylor, Ute A. Mueller

Research outputs 2014 to 2021

Digital camera monitoring data on recreational boating traffic are often manually interpreted and the reading cost can be expensive. Typically, these data are used along with other periodic survey information and camera data between these surveys may not be read, creating gaps in the time series. We predicted recreational boating traffic during these ‘gap’ periods using historical camera data and covariates to complete the time series data. Predictive models were built in a Bayesian regression modelling framework to determine the daily distribution of recreational boating traffic at two ramps in Western Australia based on climatic variables (temperature, humidity, wind speed, …

Differences In Perceived Patient Mobility Barriers Among Nurses From Various Departments And Location Work-Sites, Nathaniel Nickerson, Elena Crooks, Brandon Clem, Teresa Bigand, Tiffanie Rampley, Crystal Billings, Danell Stengem, Jennifer Hoople

Articles, Abstracts, and Reports

No abstract provided.

Evaluation Of Myfitnesspal’S Recommended Protein Intake Compared To The United States Recommended Dietary Allowances, Matthew C. Kokos, Christina Dobrowski, Aarika Merrill, Shaekira L. Niehuser, Teresa Bigand, Ross J. Bindler

Articles, Abstracts, and Reports

No abstract provided.

Using Student-Generated Problems (Sgp) As An Instructional Strategy To Enhance Undergraduate Engineering Students’ Knowledge Application Ability And Problem-Solving Skills, Sameera Algarni

Theses and Dissertations

The Student-Generated Problems (SGP) instructional strategy represents an exclusive area of real-world practice used by some educators to give powerful support and responsibility to college students for their learning experience (Mestre, 2002; Zurcher, Coppola, & McNeil, 2016). Undergraduate Engineering students often have difficulty applying gained knowledge in real-world settings and are reportedly underprepared for workplace challenges (Luo et al., 2015; Negro et al. 2019). This study examined the effects of the SGP instructional strategy used in an undergraduate Electrical Engineering course to determine students’ abilities to apply conceptual knowledge and problem-solving skills in real problem lab activities. The need for …

System Modeling: An Exploratory Study Of Engineering Students’ Conceptual Knowledge And Problem-Solving Skills, Ademola Amida

Theses and Dissertations

System modeling (SM) instructional strategy, an application of system thinking (ST), canbe used as an instructional approach to help students develop SM skills and deepen their understanding of subject matter (Hung, 2009). Mechanical engineering students have difficulty applying gained knowledge in real-world contexts and are reportedly underprepared for workplace challenges (Kirkpatrick et al., 2011; Warsame, 2017). This study explored the efficacy of system modeling (SM) instructional strategy in a mechanical engineering course. Specifically, the study sought to understand students’ perceptions and experiences with the use of system modeling in enhancing their conceptual knowledge and problem-solving skills. This study employed a …

Saudi Arabia’S Reputation From The Point Of View Of The American People In The United States Compared To That Of The Islamic Republic Of Iran And Turkey, Hamed Ateeq Alghamdi

Theses and Dissertations

Background: The reputation of a country has a significant influence on competitiveness, public diplomacy, international perception, and international relations. The aim of this research was to investigate Saudi Arabia's reputation from the point of view of the American people in The United States, compared with American perception of the Islamic Republic of Iran and Turkey. Method: A sample of 378 participants completed the 33-item questionnaire using a 7-point Likert scale. Descriptive and inferential statistics utilizing SPSS Version 26 were used to analyze the data. Results: Repeated measures ANOVA and paired t-tests revealed significant differences in the perception of Saudi Arabia …

Mental Health Impact Of Forced Marriages, Neha Batool

Theses and Dissertations

To address the mental health impact of forced marriage in the United States, this study examined the lived experiences of nine women who were forced to marry between the ages of 10 and 25. Semi structured interviews, Interpretive Phenomenological Analysis (IPA), and Feminist Standpoint theory were utilized to explore their experiences prior to, during, and after their forced marriage, with a particular focus on their psychological wellbeing, coping mechanisms, help seeking behaviors, barriers, and needs. A total of eight superordinate themes emerged that highlighted the role of gender socialization, intergenerational violence and trauma, and adverse childhood experiences in forced marriages, …

Monolayer Sorption Isotherm Model For Surface Tension Of Aqueous Surfactant Solutions Containing Electrolytes And Organic Mixtures, Kaiser Ahmed Bhuiyan

Theses and Dissertations

The surface tensions and compositions of aqueous aerosols dictate surface-mediated processes, especially the growth of aerosol particles into cloud nuclei and interfacial chemical reactions. Surface tension is also an indirect proxy for the partitioning of organics to the surface due to enhanced organic activity, driven by a reduction in solubility. Model predictions are generally not available for most surfactant-laden multi-component aqueous solutions, despite the importance of surface tension. Our recent multi-component surface tension model uses competitive adsorption at the interface, but these results are not consistent with salting out.1 We have now applied these techniques to surfactants in pure water …

By A Thread: Adapting And Understanding The Literary Past Through Contemporary Costume, Sherry Bollero

Theses and Dissertations

For over four hundred years, Shakespeare’s plays have been adapted from text to the visual realizations on the stage and later the screen. Scholarship has attended to the playscript and the performance, but it has largely neglected the position of the costume as a bridge between the literary past and contemporary adaptation. This project contends that costumes as adaptations themselves play a significant role in contemporary constructions of the literary past. In particular, the project attends to the contribution of costumes in the visualization of Shakespeare’s histories on screen. To explore this topic, the project considers several aspects. Specifically, the …

Narratological Limitations Of Telling Trauma: A Case Study Of Lorena Bobbitt And Sexual Assault, Brittney Christy

Theses and Dissertations

There are many barriers that women face when they tell their stories of sexual assault, namely—that they will not be believed. A number of factors hinder believability, many of them related to the broader relationship that narrative plays in our lives. Narrative expectation, cultivated by the texts we consume, shapes what we find believable or “tellable” in the words of scholar Amy Shuman. Difficult narratives are often rendered “untellable” because they contain unfamiliar patterns or because they fall outside recognizable frameworks of understanding. Sexual assault narratives are rendered untellable for many reasons, including social misunderstanding of the problem and the …

Educators’ Perceptions Of Youth Behavioral Health Training In Schools Across North Dakota, Elisa Laura Diederich

Theses and Dissertations

During the 2019 North Dakota legislative session (the 66th Legislative Assembly), Senate Bill 2149 was introduced to amend the North Dakota Century Code (NDCC) at Title 15.1 Elementary and Secondary Education, Chapter 07 School Districts, Section 34, which addresses behavioral health (including mental health) in an educational setting. This bill was enacted.The purpose of this flexible design qualitative study was to investigate experiences teachers, principals, and school counselors have had related to their students’ mental and behavioral health. Furthermore, this study investigated the perceptions North Dakota educators have had related to professional development on student behavioral health. Finally, this study …

Building Active Intersectional Allyship In Middle School Youth, Maura Ferguson

Theses and Dissertations

This thesis explores how an understanding of concepts of the framework of intersectionality may build resilience and increase ability for middle schoolers to learn to be active, effective allies for one another. Allyship is discussed as a necessary skill to learn and not a label one can self-select. A literature review is presented with a specific focus on intersectionality; trauma, resilience, and long-term impact of childhood trauma; and active allyship. These concepts are then framed through a social work lens, focusing on micro, mezzo, and macro levels. As human connection is critical for psychosocial health, this thesis then presents a …

North Dakota's New Frontier: Unmanned Aircraft, Matthew D. Dunlevy

Theses and Dissertations

Unmanned Aircraft, or drones, represent a modern-day frontier, one that is, as yet, neither fully explored nor fully developed. The state of North Dakota has moved into the frontier and is deeply involved in its exploration and development. The state has invested tens of millions of dollars in the Unmanned Aircraft Systems (UAS) industry, an investment that has helped to attract tens of millions of additional dollars from military sources and from private business firms. The University of North Dakota’s John D. Odegard School of Aerospace Sciences, long-recognized as among the leading aviation schools in the nation, is at the …

Remote Sensing Of Piping Plover (Charadrius Melodus) And Least Tern (Sternula Antillatum) Habitat: An Automated Methodology, Kane Hammond

Theses and Dissertations

Lake Sakakawea, located in central North Dakota, is a 286-kilometer-long reservoir with over 2,462 kilometers of shoreline (Garrison Power Plant, 2011). This reservoir is maintained by the United States Army Corps of Engineers (USACE). Each summer, the USACE employs a crew of approximately 12 individuals to monitor the Piping Plover (Charadrius melodus, hereafter; plover) and Least Tern (Sternula antillarum, hereafter; tern) at this location. Given that these species frequently return to the same breeding areas, monitoring efforts are largely focused on those areas. However, this is a dynamic system and amount of available habitat can change in response to precipitation. …

Criterion-Referenced Cut-Points In Cardiorespiratory Fitness Associated With Metabolic Syndrome In Adult Americans, Nicholas Gabriel Kavadas

Theses and Dissertations

Purpose: To identify criterion-referenced cut-points in cardiorespiratory fitness (CRF) associated with metabolic syndrome (MetS) in a nationally-representative sample of young- and middle-aged American adults. Methods: The analytic sample comprised 3302 Americans aged 20–49 years who participated in the 1999–2000, 2001–2002, and 2003–2004 cycles of the National Health and Nutrition Examination Survey. CRF was assessed by a submaximal run/walk test on a treadmill. MetS was determined using American Heart Association criteria, measured as the presence of three or more risk factors (high waist circumference, high blood pressure, high fasting triglycerides, high fasting glucose, and low high-density lipoprotein cholesterol). Receiver operating characteristic …

Eating Disorder Symptoms On Female Collegiate-Level Athletes And Non-Athletes, Kennedy Victoria Kidd

Theses and Dissertations

In previous research, it found that the risk of developing an eating disorder (ED) is much higher in females compared to males (Dunca, Ziobrowski & Nicol, 2017; Raevuori, Keski-Rahkonen, & Hoek, 2014; Lewinsohn, Seeley, Moerk, & Striegel-Moore, 2002). Similarly, research has shown that the prevalence of EDs is much higher in female athletes compared to male athletes (Johnson, Powers, & Dick, 1999). Despite the risk of developing an ED being higher in females, research has not provided a strong understanding of the prevalence of EDs comparing female student-athletes and female student non-athletes. There is research that shows that athletes may …