Digital Commons Network^™

Quaternionic Analogues Of Zagier’S Sums Of Binary Quadratic Forms, Ajmain A. Yamin

Dissertations, Theses, and Capstone Projects

Let K be the real numbers R, complex numbers C or quaternions H. Let O ⊂ K be a full rank discrete Euclidean subring of K. We investigate certain functions F_{k,Δ,O} : K → R indexed by positive integers k, Δ with k odd. When K = R or C, these functions recover Zagier’s sums of binary quadratic forms and Karabulut’s sums of binary Hermitian forms respectively. When K = H, the F_{k,Δ,O} functions are new quaternionic analogues of Zagier's sums whose definition involves sums of binary Hamiltonian forms as defined by Parkkonen-Paulin.

We prove that for fixed "weight" k …

From Today's Prices To Tomorrow's Investments: A Guide For Child Care Providers On Why The Market Rate Survey & Narrow Cost Analysis Matter, Jess Carson

New Hampshire Early Care and Education Research Consortium

No abstract provided.

Towards Human-Centered Digital Health Interventions, Kristin M Kostick-Quenet, Eric A Storch

Center for Medical Ethics and Health Policy Staff Publications

This article discusses the potential of digital health interventions (DHIs) in mental health care, emphasizing the importance of designing them to foster genuine humanistic care. It highlights current challenges in measuring engagement and outcomes, advocating for integrating human-centered endpoints such as dignity, autonomy, and therapeutic alliance into evaluation frameworks. The authors call for mechanistic research to identify effective engagement strategies and context-specific implementation approaches. Ultimately, successful DHIs should demonstrate both clinical efficacy and the preservation of humane, person-centered care, ensuring ethical and meaningful mental health support through technology.

Synthesis Of Fe-Doped Porous Carbon Catalyst Derived From Coconut Shell Waste Using Ferric Nitrate Nonahydrate (Fe(No3)3.9h2o) As An Iron Precursor, Ilham Lestadi Putra, Sukarni Sukarni, Heru Suryanto

Journal of Mechanical Engineering Science and Technology (JMEST)

Renewable energy from lignocellulosic biomass is a promising alternative to fossil fuels. Coconut shell (CS) waste is a favorable precursor for porous carbon due to its high carbon content, abundance, and non-food nature. However, conventional biochar often has limited surface area and catalytic active sites, hindering its effectiveness as a catalyst. While Fe-based modifications are promising, the use of ferric nitrate-assisted activation of coconut-shell-derived porous carbon remains underexplored. This research focused on developing an Fe-doped porous carbon catalyst from CS via ultrasound-assisted impregnation, followed by activation in a tube furnace. CS biochar was produced through pyrolysis at 550 °C and …

Algorithm Aversion In Academic Libraries: User Resistance To Ai-Enabled Discovery And Search Services, Fenfang Cao, Lvting Bu, Yi Huang, Yu Chi, Hengyi Fu

Faculty Research, Scholarly, and Creative Activity

Academic libraries increasingly deploy AI-enabled services such as intelligent search, recommendation systems, and chat-based assistance to support scholarly resource discovery. However, some users remain reluctant to rely on these tools. This phenomenon, often described as algorithm aversion, has been widely examined in healthcare and finance but remains underexplored in library contexts. This study investigates the factors associated with algorithm aversion in academic digital libraries and examines how these factors relate to one another. A two-phase mixed-method design was adopted. First, 41 semi-structured interviews with users from Chinese university libraries were analyzed using grounded theory. This stage produced 58 initial concepts, …

Reimagining The Crises Of Extractivism: Towards A Critical Cultural Political Economy Of Extractivism And Beyond, James Alejandro Artiga-Purcell

Faculty Research, Scholarly, and Creative Activity

Extractivism faces interlocking crises of its own making. Extractive governance has failed to foster democratic, socially just, and ecologically sustainable political economies. The expansion of extractive zones has provoked surging conflicts across the world over access to and control over life-giving resources like land, air, and water. The devastating socio-ecological ramifications inherent in extractivism have gone global, as exemplified by the climate crisis. Despite growing recognition of these crises of extractivism, ideologically diverse governments, corporations, and civil society organizations have consistently doubled down on extractivist solutions. This special issue interrogates the crises of, contradictory solutions for, and potential alternatives to …

Rank, Degrading Treatment, And The Italy-Albania Agreement, Jamal Barnes, Obed Adonteng-Kissi

Research outputs 2022 to 2026

In November 2023, Italy signed a five-year agreement with Albania to transfer asylum seekers intercepted in international waters by Italian vessels to Italian-run detention centres in Albania for asylum processing and deportation. The agreement has been controversial and raises several human rights issues. This article examines these human rights concerns and argues that the agreement is degrading by design. Analysing policy documents, legal cases, speeches, international human rights and refugee law, and philosophical and legal scholarship on the concept of degrading treatment, this article argues that the cumulative effect of subjecting people to unnecessary suffering, discrimination, and dehumanisation creates a …

Thermal Management Of Heat Sinks Equipped With Internal Cooling Mechanism: A Comparison With Advanced Heat Dissipation Techniques, Saif Ullah Khalid, Muhammad Ali Nasir, Mehmet Karahan, Muhammad Saleem Khan, Furqan Jamil

Research outputs 2022 to 2026

Thermal management devices aim to remove extra heat from heat generation devices. There are numerous ways of heat rejection from the source, including active and passive cooling. The cooling techniques may be natural or forced, and the popular tools are heat pipes, heat sinks, and heat exchangers. In this piece of literature, several heat pipe and heat sink configurations are tested, including a novel internally cooled configuration using mono and hybrid nanofluids. Among heat sinks, solid finned and hollow finned configurations are mainly compared with the state-of-the-art heat pipes and thermal management systems for broader comparisons. Solid cylindrical fins are …

Acute Hamstring Fatigue In Elite Male Sixes Lacrosse Players Following A Single Competitive Match, Nicholas Joel Ripley, Jack Fahey, Matthew W. Collier, Christopher Bramah

Research outputs 2022 to 2026

Background/Objectives: Decreases in hamstring isometric strength have been observed post-competition, but research has currently focused only on soccer players. Therefore, the purpose of the present study was to observe if acute reductions in isometric hamstring force production in elite male lacrosse players occur post-match.

Methods: Peak isometric force measurements were collected from ten male outfielders from the British Lacrosse squad (24.6 ± 2.3 years, 1.80 ± 0.08 m, 86.3 ± 4.5 kg) using force plates. The 90:90 isometric assessment was conducted before and after a single sixes lacrosse match to observe changes in hamstring force production. Bayesian paired sample’s t-test …

Artificial Intelligence (Ai) In Home-Care And Community Nursing: A Scoping Review, Haiying Wang, Grace Y. Wang, Tao Wang, Lori Delaney, Jonathan Bayuo, Mengyuan Li, Jing Yu Tan

Research outputs 2022 to 2026

Background/Objectives: Artificial intelligence (AI) is increasingly being applied across healthcare, but empirical evidence on its use in home-care and community nursing remains fragmented across technologies, clinical contexts, nursing roles, and stages of implementation. This scoping review aimed to map current AI applications in home-care and community nursing and synthesize reported implementation experiences, benefits, challenges, and future considerations.

Methods: Guided by Joanna Briggs Institute methodology and reported according to PRISMA-ScR, eight databases and grey literature via ProQuest were searched for English-language empirical studies published from 1 January 2020 to 14 May 2026. Retrieved records were screened independently by two reviewers, with …

Comparing User Experiences Of Teleportation, Slide-Walk, And Walk-In-Place Locomotion Across Two Virtual Reality Games, Shane L. Rogers, Brett Ryder, Stephen Palmisano

Research outputs 2022 to 2026

Virtual reality (VR) locomotion methods differ substantially in their implications for usability, presence, and comfort. Although previous research has compared a range of locomotion techniques, relatively little attention has been given to whether locomotion experiences generalise across different VR experiences. The present study compared user experiences of three locomotion methods (teleportation, slide-walk, and walk-in-place) across two VR applications (Nature Treks VR, an exploration-focused environment, and Ancient Dungeon VR, an action-oriented game). Sixty-three participants were recruited, with analyses based on the forty-five participants who completed all study conditions. During each 10-min condition (comprising a 2-min familiarisation period followed by an 8-min …

Development And Psychometric Validation Of The Multidimensional Measure Of Purpose In Life Ii (Mmop-Ii), Louis Fang, Alfred Allan, Joanne M. Dickson

Research outputs 2022 to 2026

Purpose in life is a central motivational construct that has a profound influence on wellbeing. However, existing measures lack the breadth and precision needed to accurately capture this complex construct. In the present study, we aimed to develop a new measure rooted in a holistic, systems-based theoretical framework of purpose in life: the 18-item Multidimensional Measure of Purpose in Life II (MMOP-II). In Study 1, our confirmatory factor analyses in a sample of 303 university students (female = 82.5.%, white = 78.5%) supported a strong five-factor higher-order model fit, outperforming the three-factor and unidimensional alternatives. The Study 2 results replicated …

Migrant Background Youth And Hazardous Drinking: Drinking To Fit Into Australian Society?, Caroline Ng Tseung-Wong, Justine Dandy, Amanda M. George

Research outputs 2022 to 2026

Introduction: In this study, we proposed that migrant youth might have acculturation reasons to drink alcohol and explored the role of acculturative gap conflict and perceived drinking culture in predicting hazardous drinking. We examined proximal acculturation reasons for drinking in terms of drinking to fit into Australian culture and drinking to cope with parental/community expectations.

Methods: We conducted an online survey with 470 participants (age range 18–25 years). Data from those who reported having tried alcohol (n = 383; 65% female, 71% born in Australia) were analysed. We grouped participants under those who came from similar alcohol consumption environments to …

Modernisation In Artisanal And Small-Scale Mining (Asm): Governance, Technology, Market Integration And Contested Development Pathways, Michael Mayom Ajith

Research outputs 2022 to 2026

Artisanal and small-scale mining (ASM) is increasingly recognised as a critical source of livelihoods and minerals required for the global energy transition. Yet despite decades of formalisation, the sector remains highly informal, with uneven governance, gender bias and persistent inequality due to a multitude of reasons. Therefore, this systematic integrative review analyses the interplay of governance, technological modernisation and market integration factors in shaping ASM modernisation in sub-Saharan Africa (SSA) from an interdisciplinary perspective. Sixty-five peer-reviewed studies published between 2006 and 2026 were analysed using a thematic synthesis and Gioia-inspired coding. Six interrelated questions about the drivers behind informality, licensing …

New Zealand Osteopaths And The Management Of Older Adults: Outcomes From A Practice-Based Research Network, Ana Paula Antunes Ferreira, Michael Fleischmann, Lee Muddle, Jack Feehan, Kesava Kovanur Sampath, Brett Vaughan

Research outputs 2022 to 2026

Older adults represent a growing proportion of healthcare consumers, and yet little is known about the osteopathic practitioners who regularly manage this population. This study set out to understand what characteristics are common among New Zealand osteopaths who regularly treat older adults. This cross-sectional, exploratory study was a secondary analysis of questionnaire data collected through a practice-based research network. The questionnaire captured osteopaths’ demographic characteristics, practice settings, and clinical management approaches. Of the 277 osteopaths who completed the questionnaire, 188 (67.9%) reported frequently treating older adults. Those most likely to do so were based in urban areas, treated wrist and …

Optimization-Based Energy Management Of A Standalone Hybrid Power Plant Using A Hybrid Iheo–Pso Metaheuristic Framework, Muhammad Zeeshan Tariq, Asma Aziz, Barun K. Das

Research outputs 2022 to 2026

The current study combines solar photovoltaic (PV) power, energy storage batteries and wind power to propose a novel and effective method for energy management and optimisation of hybrid renewable energy systems. Optimising the management and coordination of many energy sources is becoming essential, as the world moves towards sustainable energy choices. This study seeks to improve system performance, reliability and operating costs, using a unique hybrid control and power management paradigm, the Improved Human Evolutionary Optimisation (IHEO) algorithm, presented as a novel optimisation method that balances energy flow, generation, storage and consumption. This study shows that the proposed model greatly …

Selecting Force Plate Tests And Metrics To Complement Physical Preparation Strategies Prior To Commencing Strenuous Military Training Courses, Peter Ladlow, Nicholas J. Ripley, Damjana V. Cabarkapa, Dimitrije Cabarkapa, Dale W. Chapman, Mary Claire Geneau, G. Gregory Haff, Lachlan P. James, Paul Jones, Jason P. Lake, Christopher J. Sole, Anthony Turner, Marina De Vecchis, Natalie Masters, Charles Coussens, Robyn Holton, Russell J. Coppack, Colin Suffield, Paul Comfort

Research outputs 2022 to 2026

Background: The aim of this study was to seek opinion (via an online survey) and gain consensus of which force plate tests and metrics may be considered by military operating/training staff to better screen physical performance characteristics prior to military personnel attending a physically arduous military training course.

Methods: Ten responders with known experience and/or expertise in using force plate technology for the measurement of force production characteristics completed the survey. Responders were asked to select the most important force plate test and metrics to complement a pre-course physical performance battery to assess physical readiness, musculoskeletal injury risk and likelihood …

Soil Organic Carbon Stocks And Sequestration Rates In Western Australia’S Mangroves, Enric Gomis, Cristian Salinas, Madison Williams-Hoffman, Nicole E. Said, Marta Sánchez Alarcón, Connor Gorham, Axel Werner, Paul S. Lavery, Karina Inostroza, Tegan Davies, Pauline F. Grierson, Sharyn Hickey, Ben Radford, Enrique Ballesteros, Jeffrey J. Kelleway, Pere Masqué, Eduard Serrano, Peter I. Macreadie, Catherine E. Lovelock, Anna Lafratta, Micheli Duarte De Paula Costa, Ruth Reef, Vladimir Levchenko, Fiona Doessel, Matthew A. Hayes, Stacey M. Trevathan-Tackett, I. Noyan Yilmaz, Pawel Waryszak, Rory Crofts, Oscar Serrano

Research outputs 2022 to 2026

Mangroves are widely recognized for their contribution to climate change mitigation. This study provides the first comprehensive assessment of top 1-m and 30-cm soil organic carbon (OC) stocks and accumulation rates across Western Australia’s mangroves, spanning multiple bioregions, geomorphological settings, and intertidal positions. The results revealed (mean ± SE) 236 ± 13 Mg and 83 ± 4 Mg OC ha−1 in top 1-m and 30-cm soils, respectively, accumulated at 443 ± 83 and 215 ± 22 kg OC ha−1 yr−1 over the past 100 and 500 years, respectively. Mangroves across Western Australia exhibited up to 3-fold differences in top 1-m …

Vicarious Trauma: The Psychological Impact On Counsellors And Psychotherapists Working With Survivors Of Sexual Abuse., Deborah Down, Alison Bacon

School of Psychology

Background: Vicarious trauma (VT), the psychological distress that occurs from exposure to the trauma of others, is prevalent among therapists, but has not previously been explored in those working specifically with survivors of sexual trauma. This qualitative study explores counsellors‘ and psychotherapists‘ experiences of VT when working with survivors of sexual abuse. Method: Semi-structured interviews uncovered complex emotional and psychological impacts, highlighting how exposure to traumatic sexual abuse narratives can affect counsellors‘ and psychotherapists‘ wellbeing, and professional and personal identity. A reflexive thematic analysis was conducted. Results: Four key themes were identified. (1) The Impact of VT reveals the emotional …

Discomfort Avoidance And Desire For Normality Are Decision-Making Drivers Of Footwear Choice In Underserved Communities At Risk Of Diabetic Foot Ulcer, Krithika Anil, Neeraj Sharma, Sonal Patel, Jess Bailey, Catherine Smith, Sally Abey, Kayce Allcock, Richard Collings, Joanne Paton

School of Health Professions

BackgroundDiabetes-related foot ulceration (DFU) is a serious complication that can lead to lower limb amputation or death. Custom-made footwear is a key preventative strategy, yet adherence to use is often low. The factors influencing decision-making for footwear use remain unclear, particularly among underserved groups such as people from low socioeconomic and South Asian backgrounds. This study aimed to identify the psychological mechanisms underlying footwear choice and adherence in people with diabetes from low socioeconomic and South Asian populations.MethodsThis study used a qualitative approach conducted in two parts. Part 1 explored footwear-related experiences using one-to-one interviews informed by the COM-B model …

Exploring Factors Affecting The Use Of Blended Diets For Children And Young People In Health, Education And Social Care Settings In The Uk: The Protocol For A Realist Mixed Methods Study, Gemma Phillips, Jane Coad, Mary Hickson, Joseph C. Manning

School of Health Professions

Background Enteral tube feeding provides supplementary or alternative nutrition for individuals who cannot meet their nutritional needs orally and remains essential for a number of children and young people with complex health needs. Commercial formula remains standard practice in the UK, although increasing numbers of children and their families are choosing a blended diet and reporting significant physical and social benefits. However, support for families in using blended diets varies across health, education and social settings in the UK. Aim To explore factors affecting the use of blended diets in health, education and social care settings. Methods This sequential mixed …

Neighbourhoods And Data: Workshop Report, Katharine Willis, Nicky Marsh, Joseph Owen

School of Art, Design and Architecture

1. Executive summaryWhat: This report is taken from a workshop: titled: Neighbourhoods and Data, held on May 8, 2026, Participants included a cross-sector representation of individuals from organisations that work with communities and across local and national datasets. It focused on emerging practices and needs around quantitative and qualitative data (Marsh, Ashton, and Owen, 2025), particularly regarding the Pride in Place Neighbourhood Boards that are being established in 2026, as well as the broader neighbourhood approach currently favoured in UK place-based policy (ICON, 2026). Who and how: The workshop aimed to understand the processes of understanding, defining, and measuring people’s …

Social Prescribing For People In Vulnerable Situations In Europe: Protocol For A Process Evaluation Of An Rct In Eight Countries, Kerryn Husk, Elizabeth Gilmour, Stephanie Tierney, Debra Westlake, Anuschka Arni, Hendrik Napierala, Farhad Rezvani, Marius Dierks, Wolfram J. Herrmann

Peninsula Medical School

Objective Social prescribing is a pathway that connects individuals to non-clinical services. It supports and addresses social needs, such as those related to loneliness, housing instability and mental health. Social Prescribing Europe (SP-EU), a European Union funded project, seeks to co-create an adaptation of the social prescribing pathway based on the needs of the following target groups: LGBTIQ+ people, refugees and first-generation immigrants, older people living alone. This adapted social prescribing pathway will be tested in a pragmatic randomised controlled trial (RCT) in ten hubs, covering eight countries, across Europe. The aim of this process evaluation is to explore the …

How Conditions Within Immigration Removal Centres In The United Kingdom Affect The Mental Wellbeing Of Detainees: A Scoping Review, Niamh Gallagher, Tristan Price, Matthew Griggs

Peninsula Medical School

BackgroundImmigration Removal Centres (IRCs) are used to detain people for immigration control by the UK government. This scoping review aims to examine the experiences of detainees within UK IRCs, specifically how conditions within them, including the regime, affect their mental wellbeing.MethodsThe Joanna Briggs Institute guideline for scoping reviews was followed. Six bibliographic databases and additional grey literature sources were searched for quantitative and qualitative evidence. Descriptive analyses and quality assessments were conducted.ResultsFifteen research studies and nine pieces of grey literature were included, comprising a total of 1353 participants and 11 IRCs. The majority of data was qualitative in methodology and …

Microbial Risk Assessment And Mitigation For Underground Hydrogen Energy Storage In Salt Caverns: A Multidisciplinary Investigation, Adnan Aftab, Silvia J. Salgar Chaparro, Muhammad Ali, Quan Xie, Ali Saeedi, Alireza Keshavarz, Mohammad Sarmadivaleh

Research outputs 2022 to 2026

Underground hydrogen storage (UHS) in salt caverns is a promising solution for large-scale renewable energy storage, but its long-term stability may be compromised by hydrogenotrophic microorganisms such as sulphate-reducing bacteria (SRB). This study integrates global salt basin analysis, numerical modelling, and laboratory experiments to assess microbial risks associated with the hydrogen storage. We evaluated salt deposits across six continents, reviewed microbial communities in seawater sources commonly used for the leaching, and simulated SRB behaviour under varying hydrogen concentrations. Experiments using both commercial SRB strains and indigenous consortia from Western Australia revealed minimal microbial activity under hypersaline, low-carbon conditions. These findings …

Cardiovascular Disease Incidence And Cancer Risk In Two Large European Prospective Cohorts, Emma Fontvieille, Vivian Viallon, Laia Peruchet-Noray, Quan Gan, N. Charlotte Onland-Moret, Yvonne Koop, Anne Tjønneland, Nicola Bondonno, Verena Katzke, Rudolf Kaaks, Matthias B. Schulze, Catarina Schiborn, Calogero Saieva, Vittorio Simeon, Claudia Agnoli, Rosario Tumino, Fulvio Ricceri, Leila Luján-Barroso, Maria José Sánchez, Conchi Moreno-Iribas, Konstantinos K. Tsilidis, Marc J. Gunter, Adam Butterworth, Elio Riboli, Heinz Freisling, Pietro Ferrari

Research outputs 2022 to 2026

Our study investigated the association between incident cardiovascular disease (CVD) and subsequent cancer risk in two large European prospective cohorts. We included 568,926 adults from the European Prospective Investigation into Cancer and Nutrition and United Kingdom Biobank, all of whom were free of CVD, cancer and type 2 diabetes at baseline. Multivariable Cox proportional hazards regression models were used to estimate cancer hazard ratios (HRs) and 95% confidence intervals (CIs) in relation to incident CVD events. CVD was treated as a time-varying exposure, and models accounted for time since CVD diagnosis and other lifestyle factors. Study-specific estimates were pooled using …

Nurses' Perspectives Of Dysphagia Screening Practices In Irish Residential Long-Term Care Settings: A Qualitative Descriptive Study, Constantino Estupiñán Artiles, Claire Donnellan, Julie Regan, Mary Mooney

Research outputs 2022 to 2026

Objectives To examine nurses’ perspectives on current dysphagia screening practices in Irish residential long-term care settings (RLTCS), and to investigate barriers and facilitators to nursing-led dysphagia screening within this healthcare context. Methods This study employed a qualitative descriptive design and was reported in accordance with the Consolidated Criteria for Reporting Qualitative Research checklist. Participants were recruited through purposive sampling from RLTCS located in the northeast of the Republic of Ireland. Eleven in-person focus group interviews were conducted with thirty-four nurses working in clinical and managerial roles. A semi-structured interview guide was utilised, and the data were subsequently analysed using reflexive …

Reappraisal Of Adverse Weather As A Catalyst For Special Tourism Experiences, Valério Souza-Neto, Brent Moyle, Yawei Jiang, Gui Lohmann

Research outputs 2022 to 2026

On any given day millions of travellers find themselves contending with weather that deviates dramatically from prior expectations. Traditionally regarded as an unwelcome disruption, adverse weather has rarely been examined for its potential to enrich, rather than diminish, the value of tourist experiences. Consequently, this research critically explores how tourists positively reappraise adverse weather disruptions in tourism experiences. Based on eight focus groups (n = 42), transcript data were analysed using reflexive thematic analysis within a social-constructivist paradigm, combining iterative coding with abductive reasoning. Findings demonstrate that adverse weather can function as a situational catalyst that enables tourists to reinterpret …

What Makes An Analogy Effective For Students’ Learning Of Mathematics? Conceptualising Analogy Effectiveness For Teaching Mathematics, Vesife Hatisaru, Steven Richardson

Research outputs 2022 to 2026

Analogies are commonly used in mathematics teaching as a means to promote understanding of new potentially abstract concepts, by linking them to well-understood contexts. Despite strong intuition that analogies are helpful in supporting students’ learning of mathematics, there is a lack of agreement on how to objectively judge the utility or conceptual affordances of these analogies. In this paper, we aim to conceptualise how to assess the effectiveness of an analogy by employing Gentner’s structure-mapping theory to analogies and explore two teacher-made analogies (the ‘child-mother’ and the ‘machine’) for learning the formal definition of a function as illustrative examples. By …

Underfunded And Undervalued: Community-Based Health Promotion Practitioners’ Experiences Of Western Australia’S Prevention Sector, Ruth M. Wallace, Leesa N. Costello, Elizabeth J. Cook

Research outputs 2022 to 2026

Prevention is a central policy focus of contemporary health promotion, offering cost-effective strategies to reduce disease burden and improve population well-being. Despite this, Australia allocates a small proportion of its health budget to prevention, with funding models characterized by short-term cycles and competitive tendering. While the consequences for public health are well documented, the impact on the health promotion workforce remains underexplored. Workforce health and stability are critical for program delivery, ethical practice, continuity of relationships with communities, and the capacity to sustain long-term prevention efforts. This qualitative study examined the experience of 19 community-based health promotion practitioners in Western …