Digital Commons Network^™

Rasch Analysis Of The Physical Activity Enjoyment Scale Among 9th- And 10th-Grade Students, Jane Shimon, Yong Gao

International Journal of Physical Activity and Health

Rasch Model analysis was used to evaluate construct validity and reliability of the Physical Activity Enjoyment Scale (PACES) in an adolescent population. A total of 349 9th and 10th graders (180 male; 169 female), aged 13 to 15 years (M = 14.13 SD = .793), completed the 18-item PACES scale at the conclusion of physical education classes. Responses to PACES items were analyzed using Rasch partial credit model. Of the 18 PACES items, five were identified as misfit items and were removed. The remaining 13 good-fit items (difficulty level ranged from -0.81 for Item #10 to 0.66 logits for Item …

Vision, Values, And Virtue: Forging A Moral Basis For Emerging Economies, Yeomin Yoon

KAUPA Letters

No abstract provided.

The Australia, United Kingdom, United States (Aukus) Nuclear Submarine Agreement: Potential Implications, Bert Chapman

FORCES Initiative: Strategy, Security, and Social Systems

The AUKUS Nuclear Submarine Agreement seeks to enhance multinational deterrence against Chinese geopolitical assertiveness by giving Australia nuclear powered submarines.

▶ This agreement will pose considerable cost and technical challenges for the Australia, the United Kingdom, and the United States.

▶ Estimates of when Australia will be able to deploy nuclear submarines range from 2030-2040.

▶ The U.S. and its allies will have to make challenging decisions about where to build AUKUS in Australia.

▶ There is debate as to whether efforts to deter China in the Asia-Pacific should include non-Anglosphere countries in that region.

▶ Consideration should be given …

Cosmogenic Ages Indicate No Mis 2 Refugia In The Alexander Archipelago, Alaska, Caleb K. Walcott, Jason P. Briner, James F. Baichtal, Alia J. Lesnek, Joseph M. Licciardi

Publications and Research

The late-Pleistocene history of the coastal Cordilleran Ice Sheet remains relatively unstudied compared to chronologies of the Laurentide Ice Sheet. Yet accurate reconstructions of Cordilleran Ice Sheet extent and the timing of ice retreat along the Pacific Coast are essential for paleoclimate modeling, assessing meltwater contribution to the North Pacific, and determining the availability of ice-free land along the coastal Cordilleran Ice Sheet margin for human migration from Beringia into the rest of the Americas. To improve the chronology of Cordilleran Ice Sheet history in the Alexander Archipelago, Alaska, we applied 10Be and 36Cl dating to boulders and glacially sculpted …

Surveillance-Based Risk Score Predicts Stenotic Hemodialysis Arteriovenous Accesses, Lalathaksha Kumbar, B. Astor, Jerry Yee

Nephrology Meeting Abstracts

This prospective study evaluated a novel risk score based on Vasc-Alert surveillance to identify hemodialysis vascular access with significant stenosis. Patients receiving hemodialysis using arteriovenous access with Vasc-Alert scores ≥8 (high score) or ≤ 3 (low score) were prospectively enrolled. Each patient was screened for clinical symptoms of access dysfunction, received a physical examination and a point of care ultrasound scan of the access arm. Subjects were referred to angiogram by the primary care team as per clinical necessity. Clinical monitoring (CM) includes clinical symptoms and signs. Luminal narrowing > 50% found by ultrasound or angiogram is considered significant. A total …

The Social Construction Of Language: Identity, Reality, And Trauma In American Composition Courses, Joselyne Campos

All NMU Master's Theses

The purpose of this thesis is to investigate the ways in which instructors have the potential to reinforce or disrupt systems of oppression and power in the composition classroom through language, writing, and rhetoric. I draw upon pedagogical and rhetorical theorists, to analyze how language closely interacts with identity and how it impacts an individual's understanding and perception of reality. I consider how texts utilize language to communicate normative citizenship and challenge students' conceptions of the world around them, and how to teach from an anti-racist perspective that incorporates critical pedagogy and does not focus solely on minoritized communities’ trauma …

Increase In 1rm Back Squat After Abdominal Stabilizing Maneuvers, Caro Els

All NMU Master's Theses

Increasing intra-abdominal pressure (IAP) during free weight exercises can protect the lumbar spine from excess movement; a cause of lower back pain. Abdominal bracing (AB) and abdominal hollowing (AH) are two stabilizing maneuvers that increase IAP. Previous literature primarily compared AH and AB in therapy settings on bodyweight single joint movements. The effect of AB and AH during a multi-joint movement involving a maximum or near maximum external load is unknown. The purpose of this study was to compare the effect of AB and AH on lower limb muscle activity and the maximum amount of external weight lifted during a …

The Need For Introspective Analysis During Teaching, Kimberly A. Salter

All NMU Master's Theses

This qualitative, phenomenological research study was designed to study the impact reflection has on student teachers. This study examines how and if reflection changes teaching practice. Specifically, how do student teachers use reflection to change practices during student teaching experiences? "Critical reflection is the process by which adults identify the assumptions governing their actions, locate the historical and cultural origins of the assumptions, question the meaning of assumptions, and develop alternative ways of acting" (Cranton 1996, p. 211). After conducting thorough interviews, the following themes emerged:

1. Time
2. Perspective
3. Reflective Process

With the findings of this study, teacher education programs …

"What If We're On The Wrong Side?": Police Brutality, Protest, And Player Culpability In Heavy Rain And Detroit: Become Human, Karmann E. Ludwig

All NMU Master's Theses

Choice-based video games have often been called “interactive movies” for their unique position as a genre that lets players craft a unique story by making decisions that alter the game’s narrative. Two well-known examples in this genre, Quantic Dream’s Heavy Rain and Detroit: Become Human, offer a variety of possible story lines and outcomes for players to experience. However, because these two narratives are steeped in themes of police brutality, systemic racism, and protest, the way a player shapes a story does not exist in a relatively “moral-free” vacuum. Rather, the legal and social precedents that are often used to …

A Phenomenological Study Analyzing The Challenges, Conflicts, And Practices Of Superintendent-Principals In Rural Upper Peninsula Of Michigan School Districts, Alan R. Tulppo

All NMU Master's Theses

The purpose of this study was to analyze and provide insight into the complexities of the dual role superintendent-principal position from individuals currently serving in this position. The study focused on the challenges and conflicts individuals who serve in this dual role face and highlighted practices that have made them successful in their position. This study also sought to provide insight into the reasons why local school boards decide to employ a dual role superintendent-principal rather than having separate positions and the expectations of boards of education for individuals serving in the dual role.

As I conducted my research, numerous …

The Mental Noise Hypothesis: A Relation Between Neuroticism And P3 Latency Variance In A Stroop-Style Reaction Time Task, Jeremy Lawrence

All NMU Master's Theses

Neuroticism is a relatively stable personality dimension characterized by tendencies to experience negative thoughts and affect. Its empirically related outcome measures range from anxiety and mood disorders to increases in mortality. Traditional theories of neuroticism, link the construct to greater threat sensitivity, however, these conceptions fail to account for certain salient features of neuroticism, such as negative affect in threat benign environments. The mental noise hypothesis posits that neuroticism results from a more variable mental control system, with support coming from behavioral, psychometric, and neuroimaging paradigms. To assess whether this more chaotic mental control system would variably disrupt the stimulus …

Kaupa Letters: Volume 9, Issue 4, Korean American University Professors Association

KAUPA Letters

No abstract provided.

Contributors

Catholic University Law Review

No abstract provided.

Long Line Of Ladies, William L. Blizek

Journal of Religion & Film

This is a film review of Long Line of Ladies (2022), directed by Rayka Zehtabchi and Shaandiin Tome.

A Simple Model Of Thermal Insulation Design For Cryogenic Liquid Hydrogen Tank, Claire Mcfarland, Ramesh K. Agarwal

Mechanical Engineering and Materials Science Independent Study

A plane is being designed that will be similar in size and range to a Boeing 787-800 that will run on hydrogen fuel. The hydrogen will be stored cryogenically as a liquid in external fuel tanks located on the wings. The fuel tanks require insulation to maintain cryogenic conditions and prevent excessive boiloff of hydrogen and pressure buildup within the fuel tanks. This report details a one-dimensional, steady-state analysis of the heat transfer across the tank structure to determine the relationship between the thickness of the insulation layer on the tank and the boiloff rate of the liquid hydrogen. Expanded …

Three Approaches, Two Go-Arounds, One Diversion…And All On The Internet, Eric Carter, James Norman

Aviation Faculty Publications

No abstract provided.

State Energy Research Center, University Of North Dakota. Energy And Environmental Research Center

EERC Brochures and Fact Sheets

Fact sheet about the State Energy Research Center (SERC). Highlights technological innovation and SERC projects. [This item is an outdated or superseded version and retained for historical purposes only. It may no longer reflect current information, policies, or practices.]

Roundtable: Issue 1, Gracyn Cole, Jacey Johnson, Aubrea Lommen, Jade May, Alexia Parisien, Charisse Vetsch

Roundtable: Journal of the UND Honors Program

No abstract provided.

April 7, 2022: Agenda, University Of North Dakota

University Senate Meeting Minutes

Agenda for the April 7, 2022, meeting of the University Senate. 23 pages

Gps-Derived Interseismic Fault Locking Along The Jalisco–Colima Segment Of The Mexico Subduction Zone, Beatriz Cosenza-Muralles, Charles Demets, B. Márquez-Azúa, O. Sánchez, J. Stock, Enrique Cabral-Cano, Robert Mccaffrey

Geology Faculty Publications and Presentations

Northeastward subduction of the oceanic Rivera and Cocos plates in western Mexico poses a poorly understood seismic hazard to the overlying areas of the North America plate. We estimate the magnitude and distribution of interseismic locking along the northern ∼500 km of the Mexico subduction zone, with a series of elastic half-space inversions that optimize the fits to the velocities of 57 GPS stations in western Mexico. All velocities were corrected for the co-seismic, afterslip and viscoelastic rebound effects of the 1995 Colima–Jalisco and 2003 Tecomán earthquakes. We explore the robustness of interseismic locking estimates to a variety of mantle …

How Employees Learn To Speak Up From Their Leaders: Gender Congruity Effects In The Development Of Voice Self-Efficacy, Thomas Taiyi Yan, Subrahmaniam Tangirala, Abhijeet K. Vadera, Srinivas Ekkirala

Research Collection Lee Kong Chian School Of Business

Voice-or the expression of ideas, concerns, or opinions on work issues by employees-can help organizations thrive. However, we highlight that men and women differ in their voice self-efficacy, or the personal confidence in formulating and articulating work-related viewpoints. Such differences, we argue, can impede women's voice from emerging at work. Drawing on social cognitive theory (SCT), we propose that women tend to develop greater voice self-efficacy and thereby speak up more when they have the opportunity to observe female rather than male leaders speak up. Hence, we point to the potential absence of women leaders who can role model speaking …

A Framework For Understanding The Taxation Of Digital Tokens, Vincent Ooi

Research Collection Yong Pung How School Of Law

As a relatively new area, the taxation of digital tokens can give rise to several dangerous misconceptions. This article lays out five propositions to counter these misconceptions: 1) digital tokens are not a single monolithic asset class attracting uniform tax treatment; 2) the common trichotomous division of digital tokens into payment, utility and security tokens is derived from securities regulation and should not be blindly adopted into tax law; 3) the three classes are not mutually exclusive and hybrid tokens may exist; 4) the fact that an asset is a digital token rarely changes its tax treatment by itself, which …

Computableviz: Mathematical Operators As A Formalism For Visualization Processing And Analysis, Aoyu Wu, Wai Tong, Haotian Li, Dominik Moritz, Yong Wang, Huamin. Qu

Research Collection School Of Computing and Information Systems

Data visualizations are created and shared on the web at an unprecedented speed, raising new needs and questions for processing and analyzing visualizations after they have been generated and digitized. However, existing formalisms focus on operating on a single visualization instead of multiple visualizations, making it challenging to perform analysis tasks such as sorting and clustering visualizations. Through a systematic analysis of previous work, we abstract visualization-related tasks into mathematical operators such as union and propose a design space of visualization operations. We realize the design by developing ComputableViz, a library that supports operations on multiple visualization specifications. To demonstrate …

Cost: Contrastive Learning Of Disentangled Seasonal-Trend Representations For Time Series Forecasting, Gerald Woo, Chenghao Liu, Doyen Sahoo, Akshat Kumar, Steven Hoi

Research Collection School Of Computing and Information Systems

Deep learning has been actively studied for time series forecasting, and the mainstream paradigm is based on the end-to-end training of neural network architectures, ranging from classical LSTM/RNNs to more recent TCNs and Transformers. Motivated by the recent success of representation learning in computer vision and natural language processing, we argue that a more promising paradigm for time series forecasting, is to first learn disentangled feature representations, followed by a simple regression fine-tuning step – we justify such a paradigm from a causal perspective. Following this principle, we propose a new time series representation learning framework for long sequence time …

Asteroids: Exploring Swarms Of Mini-Telepresence Robots For Physical Skill Demonstration, Jiannan Li, Maurício Sousa, Chu Li, Jessie Liu, Yan Chen, Ravin Balakrishnan, Tovi Grossman

Research Collection School Of Computing and Information Systems

Online synchronous tutoring allows for immediate engagement between instructors and audiences over distance. However, tutoring physical skills remains challenging because current telepresence approaches may not allow for adequate spatial awareness, viewpoint control of the demonstration activities scattered across an entire work area, and the instructor’s sufficient awareness of the audience. We present Asteroids, a novel approach for tangible robotic telepresence, to enable workbench-scale physical embodiments of remote people and tangible interactions by the instructor. With Asteroids, the audience can actively control a swarm of mini-telepresence robots, change camera positions, and switch to other robots’ viewpoints. Demonstrators can perceive the audiences’ …

Immersivepov: Filming How-To Videos With A Head-Mounted 360° Action Camera, Kevin Huang, Jiannan Li, Maurício Sousa, Tovi Grossman

Research Collection School Of Computing and Information Systems

How-to videos are often shot using camera angles that may not be optimal for learning motor tasks, with a prevalent use of third-person perspective. We present immersivePOV, an approach to film how-to videos from an immersive first-person perspective using a head-mounted 360° action camera. immersivePOV how-to videos can be viewed in a Virtual Reality headset, giving the viewer an eye-level viewpoint with three Degrees of Freedom. We evaluated our approach with two everyday motor tasks against a baseline first-person perspective and a third-person perspective. In a between-subjects study, participants were assigned to watch the task videos and then replicate the …

Sibnet: Food Instance Counting And Segmentation, Huu-Thanh. Nguyen, Chong-Wah Ngo, Wing-Kwong Chan

Research Collection School Of Computing and Information Systems

Food computing has recently attracted considerable research attention due to its significance for health risk analysis. In the literature, the majority of research efforts are dedicated to food recognition. Relatively few works are conducted for food counting and segmentation, which are essential for portion size estimation. This paper presents a deep neural network, named SibNet, for simultaneous counting and extraction of food instances from an image. The problem is challenging due to varying size and shape of food as well as arbitrary viewing angle of camera, not to mention that food instances often occlude each other. SibNet is novel for …

Fine-Grained Detection Of Academic Emotions With Spatial Temporal Graph Attention Networks Using Facial Landmarks, Hua Leong Fwa

Research Collection School Of Computing and Information Systems

With the incidence of the Covid-19 pandemic, institutions have adopted online learning as the main lessondelivery channel. A common criticism of online learning is that sensing of learners’ affective states such asengagement is lacking which degrades the quality of teaching. In this study, we propose automatic sensing of learners’ affective states in an online setting with web cameras capturing their facial landmarks and head poses. We postulate that the sparsely connected facial landmarks can be modelled using a Graph Neural Network. Using the publicly available in the wild DAiSEE dataset, we modelled both the spatial and temporal dimensions of the …

Metaheuristics For Time-Dependent Vehicle Routing Problem With Time Windows, Yun-C Liang, Vanny Minanda, Aldy Gunawan, Hsiang-L. Chen

Research Collection School Of Computing and Information Systems

Vehicle routing problem (VRP), a combinatorial problem, deals with the vehicle’s capacity visiting a particular set of nodes while its variants attempt to fit real-world scenarios. Our study aims to minimise total travelling time, total distance, and the number of vehicles under time-dependent and time windows constraints (TDVRPTW). The harmony search algorithm (HSA) focuses on the harmony memory and pitch adjustment mechanism for new solution construction. Several local search operators and a roulette wheel for the performance improvement were verified via 56 Solomon’s VRP instances by adding a speed matrix. The performance comparison with a genetic algorithm (GA) was completed …

Verifiable Searchable Encryption Framework Against Insider Keyword-Guessing Attack In Cloud Storage, Yinbin Miao, Robert H. Deng, Kim-Kwang Raymond Choo, Ximeng Liu, Hongwei Li

Research Collection School Of Computing and Information Systems

Searchable encryption (SE) allows cloud tenants to retrieve encrypted data while preserving data confidentiality securely. Many SE solutions have been designed to improve efficiency and security, but most of them are still susceptible to insider Keyword-Guessing Attacks (KGA), which implies that the internal attackers can guess the candidate keywords successfully in an off-line manner. Also in existing SE solutions, a semi-honest-but-curious cloud server may deliver incorrect search results by performing only a fraction of retrieval operations honestly (e.g., to save storage space). To address these two challenging issues, we first construct the basic Verifiable SE Framework (VSEF), which can withstand …