Digital Commons Network^™

Natural Resource System Size Can Be Used For Managing Recreational Use, Derek S. Kane, Kevin L. Pope, Keith D. Koupal, Mark A. Pegg, Christopher J. Chizinski, Mark A. Kaemingk

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

Outdoor recreation provides societal benefits that are often measured by the amount of use natural resource systems receive. Still, the amount of resource use natural resource systems receive is often unknown or unstudied. Monitoring and quantifying resource use is often logistically difficult and costly but is paramount to optimize societal benefits. Identifying a simple and readily available metric that can indicate the quantity of recreational use of natural resource systems would benefit natural resource management. Using recreational angler participation data during an 11-year study period from 73 public waterbodies in Nebraska, USA, we developed a resource size-use model that demonstrates …

Mgrre_Thinsections_05_A_95, Mgrre

Thin Sections

No abstract provided.

Whispering Gallery Modes Of A Triatomic Photonic Molecule, Vladimir Shuvayev, Stanislav Kreps, Tal Carmon, Lev Deych

Publications and Research

In this paper, we present the results of numerical simulations of the optical spectra of a three-sphere photonic molecule. The configuration of the system was continuously modified from linear to triangular, in-plane with the fundamental mode excited in one of the spheres and perpendicular to it. We found the relative insensitivity of the spectra to the in-plane deviation from the linear arrangement up to about 110°. For larger angles, the spectra show significant modification consisting of the major spectral peaks splitting and shifting. On the contrary, the spectra are quite sensitive to out-of-plane molecule deviation, even at small angles. Thus, …

Earth System Science Applications Of Next-Generation Sem-Eds Automated Mineral Mapping, Shujun Han, Stefan C. Lӧhr, April N. Abbott, Andre Baldermann, Juraj Farkaš, William Mcmahon, Kitty L. Milliken, Mehrnoush Rafiei, Cassandra Wheeler, Michael Owen

Marine Science

Sedimentary rocks contain a unique record of the evolution of the Earth system. Deciphering this record requires a robust understanding of the identity, origin, composition, and post-depositional history of individual constituents. Petrographic analysis informed by Scanning Electron Microscope - Energy Dispersive Spectroscopy (SEM-EDS) mineral mapping can reveal the mineral identity, morphology and petrological context of each imaged grain, making it a valuable tool in the Earth Scientist’s analytical arsenal. Recent technological developments, including quantitative deconvolution of mixed-phase spectra (producing “mixels”), now allow rapid quantitative SEM-EDS-based analysis of a broad range of sedimentary rocks, including the previously troublesome fine-grained lithologies that …

Cortex-Wide Response Mode Of Vip-Expressing Inhibitory Neurons By Reward And Punishment, Zoltán Szadai, Hyun-Jae Pi, Quentin Chevy, Katalin Ócsai, Dinu F Albeanu, Balázs Chiovini, Gergely Szalay, Gergely Katona, Adam Kepecs, Balázs Rózsa

2020-Current year OA Pubs

Neocortex is classically divided into distinct areas, each specializing in different function, but all could benefit from reinforcement feedback to inform and update local processing. Yet it remains elusive how global signals like reward and punishment are represented in local cortical computations. Previously, we identified a cortical neuron type, vasoactive intestinal polypeptide (VIP)-expressing interneurons, in auditory cortex that is recruited by behavioral reinforcers and mediates disinhibitory control by inhibiting other inhibitory neurons. As the same disinhibitory cortical circuit is present virtually throughout cortex, we wondered whether VIP neurons are likewise recruited by reinforcers throughout cortex. We monitored VIP neural activity …

December 1, 2022: Agenda, University Of North Dakota

University Senate Meeting Minutes

Agenda for the December 1, 2022, meeting of the University Senate. 26 pages

Association Between The Health Belief Model, Exercise, And Nutrition Behaviors During The Covid-19 Pandemic, Keagan Kiely, Bill Mase, Andrew R. Hansen, Jessica S. Schwind

Biostatistics, Epidemiology & Environmental Health Sciences: Faculty Publications

Introduction: The COVID-19 pandemic has affected our nation’s health further than the infection it causes. Physical activity levels and dietary intake have suffered while individuals grapple with the changes in behavior to reduce viral transmission. With unique nuances regarding the access to physical activity and nutrition during the pandemic, the constructs of Health Belief Model (HBM) may present themselves differently in nutrition and exercise behaviors compared to precautions implemented to reduce viral transmission studied in previous research. The purpose of this study was to investigate the extent of exercise and nutritional behavior change during the COVID-19 pandemic and explain the …

Laboratory Investigation On Short Design Wave Extreme Responses For Floating Hinged-Raft Wave Energy Converters, S. Jin, S. A. Brown, T. Tosdevin, M. R. Hann, D. M. Greaves

School of Engineering, Computing and Mathematics

In offshore renewable energy design procedures, accurate predictions of extreme responses are required in order to design for survivability whilst minimising associated costs. At present, the established method for predicting extreme responses is to conduct a large number of long-duration simulations, which is practical only in cases where the structural behaviour is captured by a computationally efficient linear approach. Many applications, however, will require a nonlinear approach, which significantly increases the computational cost, and hence the time required to analyse a problem. Should high-fidelity numerical approaches be the appropriate analysis tool, the long-duration simulations are likely to be impractical and …

The Growing Dissonance Between The Kosmos And The Anthropos: A Hermeneutic Study Of The Mechanistic World View Brought By Classical Physics And The New Rationality Introduced By Einstein’S Relativity Theory And Heisenberg’S Indeterminacy Principle In Quantum Physics, Maria Eliza Cruz

Mabini Review

This paper centers on the implicit metaphysics beyond the Theory of Relativity and the Principle of Indeterminacy – two revolutionary theories that have changed 20th Century Physics – using the perspective of Husserlian Transcedental Phenomenology. Albert Einstein (1879-1955) and Werner Heisenberg (1901-1976) abolished the theoretical framework of Classical (Galilean-Newtonian) physics that has been complemented, strengthened by Cartesian metaphysics. Rene Descartes (1596-1850) introduced a separation between subject and object (as two different and self- enclosed substances) while Galileo and Newton did the “mathematization” of the world. Newtonian physics, however, had an inexplicable postulate of absolute space and absolute time – a …

Pandemic Fatigue Impedes Mitigation Of Covid-19 In Hong Kong, Zhanwei Du, Lin Wang, Songwei Shan, Dickson Lam, Tim K. Tsang, Jingyi Xiao, Huizhi Gao, Bingyi Yang, Sheikh Taslim Ali, Sen Pei, Isaac Chun-Hai Fung, Eric H. Y. Lau, Qiuyan Liao, Peng Wu, Lauren Ancel Meyers, Gabriel M. Leung, Benjamin Cowling

Biostatistics, Epidemiology & Environmental Health Sciences: Faculty Publications

Hong Kong has implemented stringent public health and social measures (PHSMs) to curb each of the four COVID-19 epidemic waves since January 2020. The third wave between July and September 2020 was brought under control within 2 m, while the fourth wave starting from the end of October 2020 has taken longer to bring under control and lasted at least 5 mo. Here, we report the pandemic fatigue as one of the potential reasons for the reduced impact of PHSMs on transmission in the fourth wave. We contacted either 500 or 1,000 local residents through weekly random-digit dialing of landlines …

Finite Element Analysis On Structural Behaviour Of Geopolymer Reinforced Concrete Beam Using Johnson-Cook Damage In Abaqus, Nurul Aida Mohd Mortar, Mmab Abdullah, Kamarudin Hussin, Rafiza Abdul Razak, Sanusi Hamat, Ahmad Humaizi Hilmi, Noorfifi Natasha Shahedan, Long Yuan Li, Ikmal Hakem A. Aziz

School of Engineering, Computing and Mathematics

This paper details a finite element analysis of the behaviour of Si-Al geopolymer concrete beam reinforced steel bar under an impulsive load and hyper velocity speed up to 1 km/s created by an air blast explosion. The initial torsion stiffness and ultimate torsion strength of the beam increased with increasing compressive strength and decreasing stirrup ratio. The study involves building a finite element model to detail the stress distribution and compute the level of damage, displacement, and cracks development on the geopolymer concrete reinforcement beam. This was done in ABAQUS, where a computational model of the finite element was used …

Predicting The Stability Of Open Stopes Using Machine Learning, Alicja Szmigiel, Derek B. Apel

Journal of Sustainable Mining

The Mathews stability graph method was presented for the first time in 1980. This method was developed to assess the stability of open stopes in different underground conditions, and it has an impact on evaluating the safety of underground excavations. With the development of technology and growing experience in applying computer sciences in various research disciplines, mining engineering could significantly benefit by using Machine Learning. Applying those ML algorithms to predict the stability of open stopes in underground excavations is a new approach that could replace the original graph method and should be investigated. In this research, a Potvin database …

Learning Within Socio-Political Landscapes: (Re)Imagining Children’S Geographies, Kathryn Lanouette, Katie Headrick Taylor

Occasional Paper Series

No abstract provided.

Stories From Islita Libre: Digital Spatial Storytelling As An Expression Of Transnational And Immigrant Identities, Jennifer Kahn, Daryl Axelrod, Matthew Deroo, Svetlana Radojcic

Occasional Paper Series

In this essay, we examine the relationship between students’ spatial literacies of their neighborhoods and communities and their transnational identities, the latter which have complex, broad spatial and temporal dimensions. Over four months, we, a team of university researchers, led a series of instructional activities with a class of racially, ethnically, and linguistically diverse first- and second-generation immigrant students in an 11th grade introduction to research course. Here, we document the ways in which students learned about various data sources for inquiry to create digital, layered map-based stories about the factors that shape their (and others’) immigrant experiences in their …

Mapping Racespace: Data Stories As A Tool For Environmental And Spatial Justice, Emily Reigh, Meg Escudé, Michael Bakal, Edward Rivero, Xinyu Wei, Collette Roberto, Damaris Hernández, Amber Yada, Kris Gutiérrez, Michelle Hoda Wilkerson

Occasional Paper Series

In this essay, we share our experiences of leading a middle school data science workshop on the topic of environmental racism (ER), in particular, the disproportionate burden of pollution on communities of Color. During the workshop, youth explored case studies of local and global data-based environmental advocacy, analyzed datasets that we provided, conducted journalistic research, and created maps and other data visualizations. Our goal was to provide opportunities for youth to recognize the strengths and limitations of data, identify environmental inequities, and advocate for social change.

Children As Design Visionaries, Learners, And Socio-Political Wayfinders: Mapping The Layers, Hierarchies, And Rhythms Of A School Community, Natalie R. Davis, Roni Barsoum

Occasional Paper Series

Despite the seemingly intractable problems of public schooling, we (as researchers and dreamers) remain encouraged by the persistent efforts to reconfigure and reimagine the sociopolitical landscape of schools. We begin this essay by recognizing the work of individuals bravely and imperfectly expanding notions of what schools could and should be. We stand in solidarity with the innovators sowing, designing, and reaching toward more just social futures, dreaming of schools for children that are not so distant from the paradise Butler (2001) describes (Figure 1). This liberatory dreamwork coincides with long histories of communal ingenuity (Vossoughi et al., 2016), resistance against …

We’Re Not Migrating Yet: Engaging Children’S Geographies And Learning With Lands And Waters, Anna Lees, Megan Bang

Occasional Paper Series

Considering the places, the geographies, of children’s learning, of human learning, is fundamental to seriously considering not only the “whats” or the content of learning but perhaps more importantly the “whys” and the “hows” of learning and the overall goals of education. The whys and hows of education construct what is deemed relevant and irrelevant as well as what is rendered invisible to the “here and now” to children’s lives (Apple, 2004; Iorio & Parnell, 2015; Nxumalo et al., 2011; Tesar, 2015). We argue in our work that issues of place, and relevancy to the “here and now”, is always …

Learning Within Socio-Political Landscapes: (Re)Imagining Children’S Geographies, Kathryn Lanouette, Katie Headrick Taylor

Occasional Paper Series

In this special issue, we bring together educators and researchers to (re)imagine what it means to teach and learn within the immediacy of the here and now, an orientation crucial to confronting contemporary threats to children’s lives, democracy, and the planet. We seek to extend and broaden Mitchell’s original conceptualization by centering the past and future alongside the immediacies of the now, elevating Black, Indigenous, and People of Color (BIPOC) perspectives in children’s geographies and exploring potentialities of mapping in analog as well as emerging digital forms. We also aim to carry forward her commitments to listening to children with …

More Than Civil Engineering And Civic Reasoning: World-Building In Middle School Stem, Alejandra Frausto Aceves, Daniel Morales-Doyle

Occasional Paper Series

This narrative essay describes a project in an urban sixth grade science class that began as an effort to link civic engagement with disciplinary learning in chemistry. The ways in which students took up this project prompted the authors to see urban infrastructures as engineered sites of learning with world-making possibilities. By interrogating the ways in which science and engineering practices are imbued with values and happen in places, teachers can engage young learners in critical examinations of their built worlds. The authors argue that there is an opportunity in K-8 engineering education to avoid reproducing some of the pathologies …

School Leadership That Cultivates Collective Efficacy: Emerging Insights 2022, Kerry Elliott, Hilary Hollingsworth, Aiden Thornton, Liz Gillies, Katherine Henderson

Educational leadership

The work of the Menzies School Leadership Incubator suggests we need a new approach to leadership that supports school leaders to better manage transformational change and deepen collaborative capacity necessary to cultivate collective efficacy to improve student learning outcomes. This paper provides a description of the work of the Menzies School Leadership Incubator (“the Incubator’) and insights generated so far. The Incubator has identified five leadership domains which underpin the leadership of Collective Efficacy; Understanding Collective Efficacy Systems; Leadership Change; Leadership Team, and Leadership Collaborative Capacity.

Sea Level Rise Vulnerability Assessment For State Wildlife Areas Surrounding Humboldt Bay, Northern California, Robert M. Sullivan, Aldaron Laird, Brian Powell, Jeffrey K. Anderson

Local Reports and Publications

Humboldt Bay has the highest rate of sea level rise (SLR) in California (47.2 cm/century). Due to compaction and tectonic subsidence, former tidelands and pastures behind dikes surrounding Humboldt Bay are lower in elevation than bay waters at high tide. Adaptation to future climate change and SLR requires that resource managers understand vulnerability and risk to each wildlife area at a local level, because adaptation to SLR is a risk-based management strategy against an uncertain future requiring site-specific solutions. We conducted a vulnerability assessment of the shoreline of three State wildlife areas surrounding Humboldt Bay: Elk River (ERWA), Fay Slough …

Are Numerical Symbols Fundamental To Neural Computation?, Mirinda James

Theses

Abstract: Neuroclassicism is the view that cognition is computation and that core mental processes, such as perception, memory, and reasoning are products of digital computations realized in neural tissue. Cognitive psychologist C. R. Gallistel uses this classical framework to argue that all cognitive information processing is based on symbolic operations performed over quantitative values (i.e. numbers) stored in the brain, much like a digital computer. Assuming this hypothesis, he investigates how the brain stores quantitative information (i.e. the numerical symbols involved in neural computation). He claims that it is more plausible that memories for numbers are stored within molecular mechanisms …

Designing And Cnc Machine Valve Sub-Plates And Quick Mounts For Hydraulic Power Training Systems, Connor Maxam

Morehead State Theses and Dissertations

A thesis presented to the faculty of the College of Business and Technology at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science by Connor Maxam on November 22, 2022.

Reviving Knowledges Through Play And Resistance: The Case Of Navajo Conceptions Of Space, Daniel Ness, Richard D. Sawyer

Northwest Journal of Teacher Education

The authors explore a possible cause of epistemicidal predispositions of the dominant Eurocentric curricula. They posit that one way to determine a plausible contributing factor of this increasing devastation is to consider epistemicide through the lens of intellectual development. To do this, the authors examine parallel patterns of behavior in the domains of developmental and cognitive psychology. The authors then discuss an alternative framework to the Western conception of space within formal K-12 education by presenting the Navajo conception of space and play. Throughout the paper, the authors argue that all students—and especially those living in poverty in commercially constructed, …

Counteracting Epistemicide: Social And Cultural Capital Of Teachers In A Dual Language Program, Katrina Liu, Richard C. Miller, Jorge Inzunza

Northwest Journal of Teacher Education

This case study explored the social and cultural capital of teachers in a rural Midwestern Spanish-English dual-language immersion (DLI) program as they overcame an Anglocentric epistemological hegemony in their daily practice. Working from Bourdieu’s (1986) theory of social capital and Rios-Aguilar and Kiyama’s (2012) approach to funds of knowledge, this research demonstrated that DLI teachers faced challenges ranging from resistance by non-DLI teachers in the school afraid of losing their jobs, to a broader fear of the DLI program taking resources away from the monolingual anglophone classrooms. To overcome these challenges, the DLI teachers drew extensively on their global social …

Uc Minutes 2022-11-02, Northern Illinois University

University Council Archives

No abstract provided.

Introduction To Confronting Teacher Preparation Epistemicide: Art, Poetry, And Teacher Resistance, Richard D. Sawyer, Daniel Ness

Northwest Journal of Teacher Education

In this special issue, we present different perspectives from a documentary project on curricular epistemicide. We view curriculum epistemicide —the annihilation of curriculum—as an embodied process. It limits ways of knowing, questioning, and envisioning the world, and it constricts multiplicity and erases identity and culture. Authors within this volume responded to two requests: 1) they examined some form of epistemicide; and 2) they did not reinforce current systems of power and inequity. Throughout the issue, poetry and photography weave through theoretical papers and empirical studies. A range of methodologies are considered within the articles.

A Torsion-Based Rheometer For Measuring Viscoelastic Material Properties, Merrill E. Asp, Elise Jutzeler, Jakub Kochanowski, Katherine Kerr, Dawei Song, Sarthak Gupta, Robert Carroll, Alison E. Patteson

Physics - All Scholarship

Rheology and the study of viscoelastic materials are an integral

part of engineering and the study of biophysical systems. Tissue rheology is even

used in the study of cancer and other diseases. However, the cost of a rheometer is

feasible only for colleges, universities, and research laboratories. Even if a rheometer

can be purchased, it is bulky and delicately calibrated, limiting its usefulness to the

laboratory itself. The design presented here is less than a tenth of the cost of a

professional rheometer. The design is also portable, making it the ideal solution to

introduce viscoelasticity to high school students …

Mgrre_Thinsections_Mgrre-126_1, Mgrre

Thin Sections

No abstract provided.

Mgrre_Thinsections_Mgrre-126_2, Mgrre

Thin Sections

No abstract provided.