Digital Commons Network^™

Invisible Women: Gender Representation In High School Science Courses Across Australia, Kathryn Ross, Shanika Galaudage, Tegan Clark, Nataliea Lowson, Andrew Battisti, Helen Adam, Alexandra K. Ross, Nici Sweaney

Research outputs 2022 to 2026

The visibility of female role models in science is vital for engaging and retaining women in scientific fields. In this study, we analyse four senior secondary science courses delivered across the states and territories in Australia: Biology, Chemistry, Environmental Science, and Physics. We compared male and female representation within the science courses by examining the mentions of male and female scientists along with the context of their inclusions in the syllabuses. We find a clear gender bias with only one unique mention of a female scientist. We also find a clear Eurocentric focus and narrow representation of scientists. This bias …

Development Of A Tool To Identify Barriers And Enablers To Practice Innovation In Midwifery: A Participatory Action Research Study, Sara D. Davis, Sara Bayes, Sadie Geraghty

Research outputs 2022 to 2026

Introduction: Transferring research evidence into midwifery practice is fraught with challenges and obstacles. Implementation tools can streamline the process and are most effective when they are discipline-specific; however, there are currently no midwifery specific implementation tools. The aim of this study was to develop a midwifery specific tool to identify barriers and enablers to evidence-informed practice change within the clinical setting. Methods: Participatory action research methodology was employed to ensure potential end-users contributed to content and format of the tool. Purposeful sampling ensured participants were selected from a range of midwifery practice settings in Western Australia and the United Kingdom. …

A Model For Children’S Digital Citizenship In India, Korea, And Australia: Stakeholder Engagement Principles, Emma Jayakumar, Kylie Stevenson, Harrison See, Yeonghwi Ryu

Research outputs 2022 to 2026

This white paper communicates research activities and findings investigating digital safety and digital citizenship through multistakeholder collaborations in three countries—India, South Korea, and Australia. Performed by an Edith Cowan University-based research team from the ARC Centre of Excellence for the Digital Child, supported by the LEGO Group, this research additionally responds to many recent policy and practice reviews arguing for institutional and policy engagement in the Asia Pacific (APAC) that build children’s digital safety, literacy and citizenship. These include the UNESCO data-driven report, Digital Kids Asia Pacific (DKAP): Insights into children’s digital citizenship (UNESCO, 2019), an earlier UNESCO review of …

Final Report June 2023: Research Impact Evidence Scheme - Research Impact: Dr. Helen Adam, Maria Enriquez-Watt, Helen Adam

Research outputs 2022 to 2026

This research addressed the question: What is the impact of the research of Dr. Helen Adam into the culturally responsive use of diverse literature on practitioners, school communities, policy makers and the wider community?

Key Findings:

• The primary beneficiaries of Adam’s work include policy makers, educational professionals & consultants, academics, teacher trainers, and librarians.
• The secondary beneficiaries of Adam’s research include school children and their families, school communities and the wider community.
• Adam’s research is of pervasive and profound significance in educational sectors and is rapidly becoming of global significance.
• Adam’s research is transformative and impacts on the lives of …

Going Beyond: Cyber Security Curriculum In Western Australian Primary And Secondary Schools. Final Report, Nicola F. Johnson, Ahmed Ibrahim, Leslie Sikos, Marnie Mckee

Research outputs 2022 to 2026

There is no doubt cyber security is of national interest given the rife nature of cyber crime and the alarming increase of victims who have endured identify theft, fraud and scams. Curriculum within K-12 schools tends to be fixed and any modifications are subject to extensive consultation within a prolonged review cycle. Therefore, this report has gone beyond curriculum to explore the potential of national awareness campaigns and dynamic digital cyber security licences as alternative possibilities for instigation. The role of leaders in various school sectors and systems is critical for a successful roll out. This final report culminates from …

Association Between Immunoglobulin G N-Glycosylation And Lupus Nephritis In Female Patients With Systemic Lupus Erythematosus: A Case-Control Study, Xinxia Lu, Liangao Wang, Meng Wang, Yuejin Li, Qinqin Zhao, Yanjun Shi, Yujing Zhang, Yingjie Wang, Wei Wang, Long Ji, Haifeng Hou, Dong Li

Research outputs 2022 to 2026

Background: Lupus nephritis (LN) is a crucial complication of systemic lupus erythematosus (SLE) and has important clinical implications in guiding treatment. N-glycosylation of immunoglobulin G (IgG) plays a key role in the development of SLE by affecting the balance of anti-inflammatory and proinflammatory responses. This study aimed to evaluate the performance of IgG N-glycosylation for diagnosing LN in a sample of female SLE patients. Methods: This case-control study recruited 188 women with SLE, including 94 patients with LN and 94 age-matched patients without LN. The profiles of plasma IgG N-glycans were detected by hydrophilic interaction chromatography with ultra-performance liquid chromatography …

The Role Of Negative Affects As Mediators In The Relationship Between Stress And Mental Health In Ecuadorian Adolescents, Rodrigo Moreta-Herrera, Doris Zumba-Tello, Jaisalmer De Frutos-Lucas, Stefanía Llerena-Freire, Alexandra Salinas-Palma, Almudena Trucharte-Martínez

Research outputs 2022 to 2026

Background: Stress and negative emotions have adverse consequences for the mental health of adolescents, an area that deserves further examination. These attributes are associated with each other and regularly interact in different ways. The way they exert an influence can be both direct and indirect, so the general objective is to elucidate the potential mediating effect of negative affects in the relationship between stress and mental health in Ecuadorian adolescents. Participants and procedure: An explanatory and mediation design based on structural equation modeling (SEM) was applied with 1154 high school students from Ecuador (67.7% women) aged 14 to 19 years …

Local Community Capacity Building: Exploring Non-Governmental Organizations Approaches In Tamil Nadu, Sten Langmann, Pieter-Jan Bezemer, David Pick

Research outputs 2022 to 2026

Locally based non-governmental organizations (NGOs) play an important role in community capacity building (CCB). Because these NGOs are generally located close to the affected communities, they have the local knowledge to identify problems and assist the affected communities to address them. However, the methods these local NGOs use to build capacity in the local communities and the reasons they choose certain CCB approaches are not well known. To enhance the knowledge in these areas, this study conducted semistructured interviews with local NGOs and local NGO experts in Tamil Nadu, India. It was found that local NGOs build capacity in communities …

‘Keep The Music Going’: How The Isolation Tour 2020 Maintained Community And Cultural Connectedness During The 2020 Covid-19 Lockdown In Western Australia, Brigitta Scarfe, Amy Budrikis, Clint Bracknell

Research outputs 2022 to 2026

The COVID-19 pandemic and subsequent social isolation measures had a profound impact on communities worldwide. In regional and remote Western Australia, the use of online platforms has become increasingly important for maintaining social and emotional well-being. This article examines the role of ‘The Isolation Tour 2020’ Facebook page in providing a lifeline for its mostly Aboriginal audience to stay connected with culture, Country, and one another during the 2020 COVID-19 lockdown in Western Australia. The authors conducted an in-depth interview with one of the administrators of the page and supplemented this with a thematic analysis of publicly available Facebook data. …

How “Open” Are Australian Museums? A Review Through The Lens Of Copyright Governance, Paul L. Arthur, Lydia Hearn, Isabel Smith, Nikos Koutras

Research outputs 2022 to 2026

Museums are increasingly employing innovative digital techniques to curate, link, and market collections, enabling new kinds of public engagement to better connect with popular culture. By embracing contemporary modes of delivery to open access to their collections, museums are signalling a drive toward greater democratisation of knowledge and information through increased interaction and accessibility. Yet with this has come a series of copyright and legal complexities. This paper reviews current copyright barriers for museums in Australia and examines how international examples offer potential models and ways forward. The authors conclude that recent copyright modernisation reviews offer the museum sector an …

Data From An International Multi-Centre Study Of Statistics And Mathematics Anxieties And Related Variables In University Students (The Smarvus Dataset), Jenny Terry, Robert M. Ross, Tamás Nagy, Mauricio Salgado, Patricia Garrido-Vásquez, Jacob O. Sarfo, Susan Cooper, Anke C. Buttner, Tiago J. S. Lima, İbrahim Öztürk, Nazli Akay, Flavia H. Santos, Christina Artemenko, Lee T. Copping, Mahmoud M. Elsherif, Ilija Milovanović, Robert A. Cribbie, Marina G. Drushlyak, Katherine Swainston, Yiyun Shou, Juan D. Leongómez, Nicola Palena, Fitri A. Abidin, Maria F. Reyes-Rodríguez, Yunfeng He, Juneman Abraham, Argiro Vatakis, Kristin Jankowsky, Stephanie N. L. Schmidt, Elise Grimm, Desirée González, Philipp Schmid, Roberto A. Ferreira, Dmitri Rozgonjuk, Neslihan Özhan, Patrick A. O'Connor, Andras N. Zsido, Gregor Stiglic, Darren Rhodes, Cristina Rodríguez, Ivan Ropovik, Violeta Enea, Ratri Nurwanti, Alejandro J. Estudillo, Nataly Beribisky, Karel K. Himawan, Linda M. Geven, Anne H. Van Hoogmoed, Amélie Bret, Jodie E. Chapman, Udi Alter, Zoe M. Flack, Donncha Hanna, Mojtaba Soltanlou, Gabriel Banik, Matúš Adamkovič, Sanne H. G. Van Der Ven, Jochen A. Mosbacher, Hilal H. Şen, Joel R. Anderson, Michael Batashvili, Kristel De Groot, Matthew O. Parker, Mai Helmy, Mariia M. Ostroha, Katie A. Gilligan-Lee, Felix O. Egara, Martin J. Barwood, Karuna Thomas, Grace Mcmahon, Siobhán M. Griffin, Hans-Christoph Nuerk, Alyssa Counsell, Oliver Lindemann, Dirk Van Rooy, Theresa E. Wege, Joanna E. Lewis, Balazs Aczel, Conal Monaghan, Ali H. Al-Hoorie, Julia F. Huber, Saadet Yapan, Mauricio E. Garrido Vásquez, Antonino Callea, Tolga Ergiyen, James M. Clay, Gaetan Mertens, Feyza Topçu, Merve G. Tutlu, Karin Täht, Kristel Mikkor, Letizia Caso, Alexander Karner, Maxine M. C. Storm, Gabriella Daroczy, Rizqy A. Zein, Andrea Greco, Erin M. Buchanan, Katharina Schmid, Thomas E. Hunt, Jonas De Keersmaecker, Peter E. Branney, Jordan Randell, Oliver J. Clark, Crystal N. Steltenpohl, Bhasker Malu, Burcu Tekeş, Tamilselvan Ramis, Stefan Agrigoroaei, Nicholas A. Badcock, Kareena Mcaloney-Kocaman, Olena V. Semenikhina, Erich W. Graf, Charlie Lea, Kalu T. U. Ogba, Fergus M. Guppy, Amy C. Warhurst, Shane Lindsay, Ahmed A. Khateeb, Frank Scharnowski, Leontien De Kwaadsteniet, Kathryn B. Francis, Mariah Lecompte, Lisa A. D. Webster, Kinga Morsanyi, Suzanna E. Forwood, Elizabeth R. Walters, Linda K. Tip, Jordan R. Wagge, Ho Y. Lai, Deborah S. Crossland, Kohinoor M. Darda, Tessa R. Flack, Zoe Leviston, Matthew Brolly, Samuel P. Hills, Elizabeth Collins, Andrew J. Roberts, Wing-Yee Cheung, Sophie Leonard, Bruno Verschuere, Samantha K. Stanley, Iro Xenidou-Dervou, Omid Ghasemi, Timothy Liew, Daniel Ansari, Johnrev Guilaran, Samuel G. Penny, Julia Bahnmueller, Christopher J. Hand, Unita W. Rahajeng, Dar Peterburg, Zsofia K. Takacs, Michael J. Platow, Andy P. Field

Research outputs 2022 to 2026

This large, international dataset contains survey responses from N = 12,570 students from 100 universities in 35 countries, collected in 21 languages. We measured anxieties (statistics, mathematics, test, trait, social interaction, performance, creativity, intolerance of uncertainty, and fear of negative evaluation), self-efficacy, persistence, and the cognitive reflection test, and collected demographics, previous mathematics grades, self-reported and official statistics grades, and statistics module details. Data reuse potential is broad, including testing links between anxieties and statistics/mathematics education factors, and examining instruments’ psychometric properties across different languages and contexts.

Investigating Pre-Professional Dancer Health Status And Preventative Health Knowledge, Joanna Nicholas, Sara Grafenauer

Research outputs 2022 to 2026

Introduction: Dance is a highly demanding physical pursuit coupled with pressure to conform to aesthetic ideals. Assessment of health status and preventative health knowledge of pre-professional dancers may help inform educational strategies promoting dancers’ health and career longevity. The aim of this research was to establish a baseline understanding of dance students at a single pre-professional institution based on metrics focused on current health, nutrition, lifestyle, and wellbeing while also gauging knowledge of longer-term health implications. Methods: Adopting a cross-sectional study design, the Dance-Specific Energy Availability Questionnaire was tailored for Australian participants and administered online. Results: The response rate was …

Is Conservative Opposition To Climate Change Threat-Based? Articulating An Integrated Threat Model Of Climate Change Attitudes, Samantha K. Stanley, Kirsti M. Jylhä, Zoe Leviston, Iain Walker

Research outputs 2022 to 2026

Throughout the literature, there are assertions that those endorsing conservative ideologies reject the science and solutions of climate change due to perceived threat. That is, they fear that accepting climate change means accepting problems with a favoured socioeconomic system and supporting action on climate change threatens to disrupt these systems. We draw together lines of research and reasoning on this topic to outline three key predictions this perspective makes about the drivers of conservative denial of climate change and opposition to climate policy. The first is that an asymmetry exists in climate-related threat perceptions, whereby greater endorsement of conservative ideology …

Ketone Bodies Mediate Alterations In Brain Energy Metabolism And Biomarkers Of Alzheimer’S Disease, Matin Ramezani, Malika Fernando, Shaun Eslick, Prita R. Asih, Sina Shadfar, Ekanayaka M. S. Bandara, Heidi Hillebrandt, Silochna Meghwar, Maryam Shahriari, Pratishtha Chatterjee, Rohith Thota, Cintia B. Dias, Manohar L. Garg, Ralph N. Martins

Research outputs 2022 to 2026

Alzheimer’s disease (AD) is the most common form of dementia. AD is a progressive neurodegenerative disorder characterized by cognitive dysfunction, including learning and memory deficits, and behavioral changes. Neuropathology hallmarks of AD such as amyloid beta () plaques and neurofibrillary tangles containing the neuron-specific protein tau is associated with changes in fluid biomarkers including A , phosphorylated tau (p-tau)-181, p-tau 231, p-tau 217, glial fibrillary acidic protein (GFAP), and neurofilament light (NFL). Another pathological feature of AD is neural damage and hyperactivation of astrocytes, that can cause increased pro-inflammatory mediators and oxidative stress. In addition, reduced brain glucose metabolism and …

The Effect Of Acute Exercise On Objectively Measured Sleep And Cognition In Older Adults, Kelsey R. Sewell, Nathan D. W. Smith, Stephanie R. Rainey-Smith, Jeremiah Peiffer, Hamid R. Sohrabi, Kirk I. Erickson, Belinda M. Brown

Research outputs 2022 to 2026

Background: Exercise can improve cognition in aging, however it is unclear how exercise influences cognition, and sleep may partially explain this association. The current study aimed to investigate whether objectively measured sleep mediates the effect of an acute exercise intervention on cognition in older adults. Methods: Participants were 30 cognitively unimpaired, physically active older adults (69.2 ± 4.3 years) with poor sleep (determined via self-report). After a triple baseline cognitive assessment to account for any natural fluctuation in cognitive performance, participants completed either a single bout of 20-minutes of high intensity exercise on a cycle ergometer, or a control condition, …

Development Of A Scoring Tool For Australian Rural Food Retail Environments, Tracy L. Schumacher, Carissa A. Alderton, Leanne J. Brown, Susan Heaney, Laura Alston, Katherine Kent, Stephanie L. Godrich

Research outputs 2022 to 2026

Current tools scoring the healthiness of food retail outlets do not reflect outlets found in rural locations. This study aimed to adapt pre-existing Australian scoring tools to represent non-metropolitan areas. Rural nutrition experts were identified, and a modified Delphi technique was used to adapt two pre-existing, food-scoring tools in five iterative stages. Stages included identifying all relevant outlets, providing a description and score for each, ensuring consistency between outlet scores and pre-existing, metro-centric tools, and providing instructions for correct use. Six rural nutrition experts were identified and engaged in the modified Delphi technique. The final tool consisted of 12 categories …

Changes In Parental Anxiety And Intention To Demand Antibiotics: A Longitudinal Study Among Parents During The Covid-19 Pandemic, Aaron L. Alejandro, Mieghan Bruce, Wei W. C. Leo

Research outputs 2022 to 2026

Aims: Assessing the effects of the COVID-19 pandemic on parental anxiety and preferences for antibiotic treatment can help inform antibiotic stewardship strategies. Therefore, this study aimed to examine COVID-19 pandemic-related changes in parental anxiety levels, their intentions to demand antibiotics and frequencies of practising preventative behaviours. Design: This longitudinal quantitative study compared two groups of parents, those from Victoria and Western Australia, who experienced high and low COVID-19 risk, respectively. Methods: Participants were recruited through an online panel to complete three waves of surveys between October 2020 and August 2021. Anxiety scores and frequency of preventative behaviours were analysed using …

Clinical Practice Guideline For Best Practice Management Of Pediatric Patients By Chiropractors: Results Of A Delphi Consensus Process, Genevieve Keating, Cheryl Hawk, Lyndon Amorin-Woods, Deisy Amorin-Woods, Sharon Vallone, Ronald Farabaugh, Angela Todd, Randy Ferrance, Jessie Young, Stephanie O. Bhogal, Helen Sexton, Helen Alevaki, Joyce Miller, Gregory Parkin-Smith, Alec Schielke, Andrew Robinson, Robyn Thompson

Research outputs 2022 to 2026

Objective: To build upon existing recommendations on best practices for chiropractic management of children by conducting a formal consensus process and best evidence synthesis. Design: Best practice guide based on recommendations from current best available evidence and formal consensus of a panel of experienced practitioners, consumers, and experts for chiropractic management of pediatric patients. Methods: Synthesis of results of a literature search to inform the development of recommendations from a multidisciplinary steering committee, including experts in pediatrics, followed by a formal Delphi panel consensus process. Results: The consensus process was conducted June to August 2022. All 60 panelists completed the …

Survey Of Attitudes Toward Performing And Reflecting On Required Team Service-Learning (Sasl): Psychometric Data And Reliability/Validity For Healthcare Professions Students In Preclinical Courses, Lon J. Van Winkle, Shane L. Rogers, Bradley O. Thornock, Brian D. Schwartz, Alexis Horst, Jensen A. Fisher, Nicole Michels

Research outputs 2022 to 2026

Purpose: Previously we assessed healthcare professional students’ feelings about team-based learning, implicit bias, and service to the community using an in-house paper survey. In this study, we determined whether this survey is a reliable and valid measure of prospective medical students’ attitudes toward required service-learning in an Immunology course. To our knowledge, no published questionnaire has been shown to be dependable and useful for measuring such attitudes using only eight survey items. Methods: Fifty-eight prospective medical students in Colorado (CO) and 15 in Utah (UT) completed the same Immunology course using remote technology. In addition to the usual course content, …

Extended Kalman Filter Based Resilient Formation Tracking Control Of Multiple Unmanned Vehicles Via Game-Theoretical Reinforcement Learning, Lei Xue, Bei Ma, Jian Liu, Chaoxu Mu, Donald C. Wunsch

Electrical and Computer Engineering Faculty Research & Creative Works

In This Paper, We Discuss the Resilient Formation Tracking Control Problem of Multiple Unmanned Vehicles (MUV). a Dynamic Leader-Follower Distributed Control Structure is Utilized to Optimize the Performance of the Formation Tracking. for the Follower of the MUV, the Leader is a Cooperative Unmanned Vehicle, and the Target of Formation Tracking is a Non-Cooperative Unmanned Vehicle with a Nonlinear Trajectory. Therefore, an Extended Kalman Filter (EKF) Observer is Designed to Estimate the State of the Target. Then the Leader of the MUV is Adjusted Dynamically According to the State of the Target. in Order to Describe the Interactions between the …

Synthesis, Densification, And Cation Inversion In High Entropy (Co,Cu,Mg,Ni,Zn)Al2o4 Spinel, Cole A. Corlett, Nina Obradovic, Jeremy Lee Watts, Eric W. Bohannan, William Fahrenholtz

Materials Science and Engineering Faculty Research & Creative Works

The synthesis, densification behavior, and crystallographic site occupancy were investigated for four different spinel-based ceramics, including a high-entropy spinel (Co_0.2Cu_0.2Mg_0.2Ni_0.2 Zn_0.2)Al₂O₄. Each composition was reacted to form a single phase, but analysis of X-ray diffraction patterns revealed differences in cation site occupancy with the high-entropy spinel being nearly fully normal. Densification behavior was investigated and showed that fully dense ceramics could be produced by hot pressing at temperatures as low as 1375°C for all compositions. Vickers' hardness values were at least 10 GPa for all compositions. The …

Final-Stage Densification Kinetics Of Direct Current–Sintered Zrb2, Austin D. Stanfield, Steven M. Smith, Suzana Filipović, Nina Obradović, Vladimir Buljak, Gregory E. Hilmas, William Fahrenholtz

Materials Science and Engineering Faculty Research & Creative Works

Final-stage sintering was analyzed for nominally phase pure zirconium diboride synthesized by borothermal reduction of high-purity ZrO₂. Analysis was conducted on ZrB₂ ceramics with relative densities greater than 90% using the Nabarro–Herring stress–directed vacancy diffusion model. Temperatures of 1900°C or above and an applied uniaxial pressure of 50 MPa were required to fully densify ZrB₂ ceramics by direct current sintering. Ram travel data were collected and used to determine the relative density of the specimens during sintering. Specimens sintered between 1900 and 2100°C achieved relative densities greater than 97%, whereas specimens sintered below 1900°C failed to …

Morphological And Structural Characterization Of Mgal2o4 Spinel, Nina Obradović, Suzana Filipović, William Fahrenholtz, Bojan A. Marinkovic, Jelena Rogan, Steva Lević, Antonije Đorđević, Vladimir B. Pavlović

Materials Science and Engineering Faculty Research & Creative Works

Magnesium aluminate has the spinel structure along with good mechanical, chemical, and thermal properties. Magnesium aluminate has a wide range of applications including refractory ceramics, optically transparent ceramic windows, and armors. Its low dielectric permeability and low loss tangent enable its applications for integrated electronic devices, as well. In this paper, MgO and Al₂O₃ powders were mixed in a one-to-one molar ratio and calcined at temperatures ranging from 1500 to 1800o C to produce phase pure spinel. Thereafter, pellets were crushed and treated in a planetary ball mill for 60 min to obtain a fine powder. All …

Dual Identity, Self-Esteem, And Well-Being In Tibetan Refugees, Tenzin Urgyen

Dissertations and Theses @ UNI

There are approximately 127,935 Tibetans in exile. As immigrants and stateless refugees, Tibetans carry their identity of Tibetan-origin and are tied to Indian, American, or other identities as well; however, there is little research on whether having more than one identity is an advantage for some or all people, especially within the Tibetan context. Using social identity theory (Tajfel & Turner, 1979) as a framework, this pre-registered correlational study investigated the relationship between dual identity, self-esteem, and well-being. While several studies (e.g., Berry, 2005; Curran et al., 2002; Mok et al., 2007) have shown that holding dual identities is related …

Preparing Students For Life After College: A Mixed-Methods Analysis, Nichole Zumbach Harken

Dissertations and Theses @ UNI

Institutions of higher education work to engage students in high-impact practices throughout their educational journey. Although prior research highlights the increase of stress as students near graduation, little research has explored how students manage the transition out of higher education. The purpose of this study was to investigate graduating students’ concerns, the emotional impact of those concerns, the discovery of information related to adulting practices, and the potential impact of a curriculum-infused exit program. The data were collected at a Midwest, comprehensive, liberal arts institution that confers bachelor, master’s, and doctoral degrees. To develop better praxis, the authentic union of …

From Art To Propaganda: The Shift In The Concept Of The “Most Dead” In True Crime Literature, Hannah Mcconkey

Dissertations and Theses @ UNI

This thesis studies the shift of the true crime genre from art to inescapable propaganda. This change is due, in part, to the politization of the genre by modern society. This includes the concept of the “most dead” seen within the true crime genre over the past several decades. The idea of the most dead is the belief that some victims of crimes are more or less dead depending on how marketable their demographic is. For instance, a blonde, Caucasian child would be considered the most dead while a woman of color in the sex work industry would be the …

Strength Retention Of Single-Phase High-Entropy Diboride Ceramics Up To 2000°C, Lun Feng, William Fahrenholtz, Gregory E. Hilmas, Yue Zhou, Jincheng Bai

Materials Science and Engineering Faculty Research & Creative Works

The mechanical properties of single-phase (Hf_0.2,Nb_0.2,Ta_0.2,Ti_0.2,Zr_0.2)B₂ ceramics with high purity were investigated. The resulting ceramics had relative density greater than 99%, and an average grain size of 4.3 ± 1.6 μm. At room temperature (RT), the Vickers hardness was 25.2 ± 0.6 GPa at a load of 0.49 N, Young's modulus was 551 ± 7 GPa, fracture toughness was 4.5 ± 0.4 MPa m1/2, and flexural strength was 507 ± 10 MPa. Flexural strength increased by more than 50% from 507 ± 10 MPa at RT to 776 ± …

Out In Education: A Qualitative Study Examining The Intersectionality And The Lived Out Experiences Of Prek–12 Lgbtq+ Educators, Landon Wood

Dissertations and Theses @ UNI

The role of a teacher is typically stereotyped as adhering to the status quo and societal norms, but LGBTQ+ educators and their intersecting identities have the power to interrupt the norm and move toward inclusion and advocacy for all, thus allowing the concepts of critical theory and queer theory to intersect. I have titled this merger queertical theory to discuss how LGBTQ+ teachers and their intersecting identities/nuanced perceptions and lived experiences can enact change in the field of education. Little research or information exists regarding how LGBTQ+ educators manage, handle, or even perceive intersectionality in their profession.

This qualitative study …

Can White Nationalist Rhetoric Increase Prejudice Toward Mexican Immigrants?, Nathan Lewey

Dissertations and Theses @ UNI

The Western populism wave of ethno-nationalism (i.e., exclusionary resistance to egalitarianism: exclusionist belief in the superiority of ingroup goals over superordinate goals that are inclusive of all cultures) may increase prejudice toward minorities (Schmuck & Matthes, 2017). Integrated threat theory (ITT; Stephan & Stephan, 1996) states that prejudiced attitudes are mediated by four types of threat, which are affected by quantity and quality of intergroup contact (Stephan et al., 2000). These threats include realistic threat (e.g., fear of losing one’s job to an immigrant), symbolic threat (e.g., fear of losing one’s societal values/norms to a foreign culture), intergroup anxiety, and …

The Flow Experience Of Adults Age 50 And Older In Recreational Doubles Pickleball, Glynis Worthington

Dissertations and Theses @ UNI

Pickleball, often described as a combination of tennis, badminton, and ping-pong, is America’s fastest-growing sport. An estimated 4.8 million players enjoyed the game in 2021, 40% greater than in 2019 (Sports & Fitness Industry [SFIA], 2022). The game is especially popular with older players when played recreationally (for fun rather than prepare for or participate in competitions) in a doubles format (four players per court) (USA Pickleball Association [USAPA], 2022). This study identifies the degree adults age 50 and older experience flow (Csikszentmihalyi, 1990) while playing recreational doubles pickleball.

The Long Dispositional Flow Scale – Physical (DFS-2) was used to …