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2025

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Pickin In Petticoats: Lotta Crabtree And Women In The Elevation Of The Banjo, Michael Wright Jan 2025

Pickin In Petticoats: Lotta Crabtree And Women In The Elevation Of The Banjo, Michael Wright

World Music Textbook

This chapter explores early 20th century efforts to distance the banjo from its African American roots to meet the demands of a rising market of women players, highlighting actress Lotta Crabtree's influential role in reshaping the instrument's identity.


An Artificial Intelligence Model For Predicting Hospital Readmission Using Electronic Health Records Data, Rezarta Cara, Klodian Dhoska, Fjona Cara, Fredrick Kayusi, Linety Juma Jan 2025

An Artificial Intelligence Model For Predicting Hospital Readmission Using Electronic Health Records Data, Rezarta Cara, Klodian Dhoska, Fjona Cara, Fredrick Kayusi, Linety Juma

Mesopotamian Journal of Artificial Intelligence in Healthcare

This study investigates the application of a machine learning model—specifically the Light Gradient Boosting Machine (LightGBM)—to predict 30-day hospital readmissions using structured electronic health record (EHR) data. Hospital readmissions remain a critical challenge in healthcare systems, often indicating gaps in continuity of care and contributing to higher costs. By leveraging demographic, clinical, and diagnostic variables from 350 anonymized patient records, the model aimed to accurately identify individuals at high risk of readmission. Key features included age, number of previous admissions, length of stay, number of medications, chronic disease status, and gender. Data preprocessing, model training, and evaluation were conducted using …


Impact Of Rurality On Health Care Utilization Among Australian Residents From 2009 To 2021, Engida Yisma, Martin Jones, Lee San Pauh, Sandra Walsh, Sara Jones, Esther May, Marianne Gillam Jan 2025

Impact Of Rurality On Health Care Utilization Among Australian Residents From 2009 To 2021, Engida Yisma, Martin Jones, Lee San Pauh, Sandra Walsh, Sara Jones, Esther May, Marianne Gillam

Research outputs 2022 to 2026

Purpose: In Australia, there is limited research regarding the effect of rurality on health care utilization using longitudinal data.

Methods: We analyzed data from four annual waves (2009, 2013, 2017, and 2021) of the longitudinal Household, Income and Labour Dynamics in Australia (HILDA) Survey to examine changes in the health care utilization over time among urban and rural residents. Poisson regression models estimated adjusted incidence rate ratios (aIRR) and 95% confidence intervals (CIs) for rural versus urban residents, accounting for a range of health-related and sociodemographic characteristics. Health care utilization was measured using four key indicators: visits to family doctor …


Translating Acceptability To Sustained Delivery: Clinician And Manager Perspectives On Implementing Modified Constraint-Induced Movement Therapy In An Early-Supported Discharge Rehabilitation Service, Ashan Weerakkody, Erin Godecke, Barby Singer Jan 2025

Translating Acceptability To Sustained Delivery: Clinician And Manager Perspectives On Implementing Modified Constraint-Induced Movement Therapy In An Early-Supported Discharge Rehabilitation Service, Ashan Weerakkody, Erin Godecke, Barby Singer

Research outputs 2022 to 2026

Background: Modified constraint-induced movement therapy (mCIMT) improves upper limb (UL) function after stroke. Despite up to one-third of stroke survivors being eligible, clinical uptake remains poor. To address this, a multi-modal behaviour change intervention was implemented across a large seven-site early-supported discharge (ESD) rehabilitation service. This study investigated the acceptability of mCIMT implementation within this ESD service and identified adaptations required for sustained delivery.

Methods: This qualitative study was nested within a mixed-methods process evaluation of mCIMT implementation. Four focus groups (n = 24) comprising therapists (two groups), therapy assistants (one group), and allied health managers (one group) were conducted. …


Tracking Palaeotemperatures In Coniacian–Maastrichtian Seas, Gregory D. Price, Bryan Low Kai Sheng Jan 2025

Tracking Palaeotemperatures In Coniacian–Maastrichtian Seas, Gregory D. Price, Bryan Low Kai Sheng

School of Geography, Earth and Environmental Sciences

In this study the stable isotopes of belemnites, are presented from the Coniacian–Maastrichtian interval (∼76–66 Ma) derived from the chalks of Yorkshire and Norfolk, UK, deposited on the western North Atlantic shelf. Cathodoluminescence and elemental geochemistry of the belemnites reveals that most of the rostra were well preserved. If interpreted in terms of temperature, our oxygen isotope record reveals that during the Coniacian (at ∼43 °N) the climate was relatively warm, with maximum mean temperatures of ∼26 °C, followed by cooling to <∼21 °C during the Campanian and Maastrichtian. This overall stratigraphic trend is similar to other records, suggesting that the cooling pattern was not a regional trend and, therefore, driven predominantly by global mechanisms. Within our belemnite data, we also observe a decline in δ13C at the Campanian- Maastrichtian boundary, again consistent with other records. This trend has been interpreted as …


W448-002b-03 - College Of Visual And Performing Arts: Theatre And Dance: Theater Season Records, College Of Visual And Performing Arts Jan 2025

W448-002b-03 - College Of Visual And Performing Arts: Theatre And Dance: Theater Season Records, College Of Visual And Performing Arts

University Archives Finding Aids

No abstract provided.


Epistolary Technologies Of Separation And Archives Of Emotion, James Daybell Jan 2025

Epistolary Technologies Of Separation And Archives Of Emotion, James Daybell

School of Law, Humanities and Social Sciences

No abstract provided.


Cold Water Swimming And Pregnancy: A Scoping Review And Consensus Recommendations, J. Shawe, M. Felton, J. C. Harper, C. Mark Harper, R. Stidson, M. Tipton, S. Blowers, K. Fraser, S. Hingley, E. Mcgrath, G. Bainbridge, Massey Heather Jan 2025

Cold Water Swimming And Pregnancy: A Scoping Review And Consensus Recommendations, J. Shawe, M. Felton, J. C. Harper, C. Mark Harper, R. Stidson, M. Tipton, S. Blowers, K. Fraser, S. Hingley, E. Mcgrath, G. Bainbridge, Massey Heather

School of Nursing and Midwifery

Introduction: Cold water swimming has increased in popularity and women wish to swim throughout pregnancy. There is a lack of evidenced-based guidance to make decisions about the safety of immersion in cold water during pregnancy. Methods: Closed social media groups were asked for specific questions in relation to cold water swimming and pregnancy. This highlighted concerns including water temperature, risks to the mother and fetus, and water quality. To find evidence-based answers, a series of meetings brought together clinicians and researchers with expertise in cold water physiology, exercise physiology, fertility, obstetrics, neonatology, midwifery, water epidemiology, public health and representatives from …


“I'M Pregnant, What Do I Do?”: Exploring How People Having Abortions In Britain Find And Use Online Sources Of Information, The Sacha Study Team, Rosa Mackay, Rachel Scott, Maria Lewandowska, Rebecca Meiksin, Natasha Salaria, Patricia A. Lohr, Sharon Cameron, Melissa Palmer, Rebecca S. French, Kaye Wellings, Annette Aronsson, Paula Baraitser, Caroline Free, Louise Keogh, Clare Murphy, Wendy Norman, Jennifer Reiter, Jill Shawe, Sally Sheldon, Geoffrey Wong Jan 2025

“I'M Pregnant, What Do I Do?”: Exploring How People Having Abortions In Britain Find And Use Online Sources Of Information, The Sacha Study Team, Rosa Mackay, Rachel Scott, Maria Lewandowska, Rebecca Meiksin, Natasha Salaria, Patricia A. Lohr, Sharon Cameron, Melissa Palmer, Rebecca S. French, Kaye Wellings, Annette Aronsson, Paula Baraitser, Caroline Free, Louise Keogh, Clare Murphy, Wendy Norman, Jennifer Reiter, Jill Shawe, Sally Sheldon, Geoffrey Wong

School of Nursing and Midwifery

Background: Accurate, timely, and supportive information is important for high-quality abortion care. Limited research explores how people find and use online sources of information (OSI) during the abortion process, particularly in Britain. Understanding experiences of using OSI is important for the development of person-centered services and resources. Methods: We conducted a thematic analysis of qualitative data from 41 semi-structured interviews carried out in 2021/2022 with people who had recent experience of abortion in Britain. Results: Using OSI was common amongst participants. Our analysis generated four distinct motivations for doing so. People used OSI to find information about accessing abortion services. …


Relationships Between Sediment Size Distribution And Microplastic Abundance And Characteristics Along The Strandline Of A Sandy Embayment (Whitsand, Southwest England), Oliver J. Fenn, Edward J. Walklett, Andrew Turner Jan 2025

Relationships Between Sediment Size Distribution And Microplastic Abundance And Characteristics Along The Strandline Of A Sandy Embayment (Whitsand, Southwest England), Oliver J. Fenn, Edward J. Walklett, Andrew Turner

School of Geography, Earth and Environmental Sciences

Beach sediments taken from 1 m2 areas of strandline across an embayment in southwest England (Whitsand) have been analysed for grain size distribution and elemental content. Large (1–5 mm) and small (< 1 mm) microplastics were isolated by sieving and flotation in NaBr solution, respectively, and characterised by size, shape, colour and polymeric makeup. Sediments displayed varying median diameters and degrees of sorting but distributions were always positively skewed. Concentrations of Fe, K, Mn and Ti were relatively invariant, but Ca concentrations exhibited heterogeneous distributions across the bay. Large microplastics were largely composed of polyolefin-based pre-production pellets, bio-beads and fragments whose numbers were correlated with each other. Positive and inverse relationships between beads and sediment skewness and sorting, respectively, suggests that deposition of this type of plastic is favoured where sediment is well-sorted and contains a high proportion of fine material. Small microplastics were dominated by fragments and fibres <200 μm in size composed of a broader array of polymers (including epoxy resin, polyetherimide and polyvinyl alcohol). Fibres exhibited an inverse relationship with bead and pellet abundance but there was no evidence of dependency on grain size distribution, and their presence is attributed to entrapment in interstitial spaces between sediment grains. Compositional differences between large (1–5 mm) and small (< 1 mm) microplastic fragments suggests they are derived from different sources, with the former coupled with pellet and bead deposition and the latter small enough to be retained in interstitial spaces with fibres. However, a positive relationship between mean (small) fragment size and median sediment diameter suggests that their retention is more constrained by interstitial space than fibres. The study provides evidence that microplastics of different size and shape behave differently but are, ultimately, related to or controlled by sediment size distribution in the coastal littoral zone.


Determination Of Titanium Speciation In Consumer Plastics By Raman Microspectroscopy, Johanna Brazard, Takuji B.M. Adachi, Andrew Turner, Montserrat Filella Jan 2025

Determination Of Titanium Speciation In Consumer Plastics By Raman Microspectroscopy, Johanna Brazard, Takuji B.M. Adachi, Andrew Turner, Montserrat Filella

School of Geography, Earth and Environmental Sciences

The main component of objects made of plastic is an organic polymer matrix, but plastics also contain a wide range of other chemicals, such as additives, processing aids and unintentionally added substances. At present, the scientific and regulatory communities face challenges due to the lack of access to basic information on their quantity and identity, which is crucial in relation to potential toxicity, management, recycling, environmental fate and resource uses. Moreover, an additional problem is that some additives, such as titanium oxide (TiO2), can be present in different crystallographic forms, which makes it necessary to characterise not only …


Conservation Planning For Promoting Ecosystem Service Provisioning Outside Protected Area Networks, Florence Godfrey Tarimo, Francis Moyo, Claire Kelly, Linus Kasian Munishi Jan 2025

Conservation Planning For Promoting Ecosystem Service Provisioning Outside Protected Area Networks, Florence Godfrey Tarimo, Francis Moyo, Claire Kelly, Linus Kasian Munishi

School of Geography, Earth and Environmental Sciences

Among factors that contribute to global biodiversity loss, habitat loss through unsustainable land use and land cover changes has gained prominence, with impacts being exacerbated by increasing human populations. Establishing protected area networks (PANs) is strongly advocated by national and international mechanisms, such as the Convention on Biological Diversity (CBD), as a primary strategy to guide biodiversity conservation and management; however, this can undermine conservation efforts outside protected areas. Understanding how people and biodiversity overlap and interact outside protected area networks (OPAN areas) is essential for setting realistic, sustainable targets to guide biodiversity conservation and ecosystem service provision beyond PAN. …


Productivity History Of The Central Okhotsk Sea And Northeast Russia During The Mid-Pleistocene Transition, Li Lo, Wei Zhu Chen, Julie Lattaud, Yi Hsueh Tsai, Simon T. Belt, Lukas Smik, Yuen Tung Kiki Wan Jan 2025

Productivity History Of The Central Okhotsk Sea And Northeast Russia During The Mid-Pleistocene Transition, Li Lo, Wei Zhu Chen, Julie Lattaud, Yi Hsueh Tsai, Simon T. Belt, Lukas Smik, Yuen Tung Kiki Wan

School of Geography, Earth and Environmental Sciences

Biological productivity, shaped by climate and environmental factors, is critical to climate feedback mechanisms and the global carbon cycle. This study investigates the measurement of six phytosterols (β-sitosterol, stigmasterol, campesterol, dinosterol, epi-brassicasterol, and 24-methylene cholesterol) from core MD01-2414 in the central Okhotsk Sea, covering the past 1.5 million years (Ma). These sterols serve as proxies for terrestrial and marine productivity in the central Okhotsk Sea and northeast Siberia. Sterol concentrations reflect global glacial/interglacial cycles between 1.2 and 0.6 Ma, with higher and lower values during interglacial and glacials intervals, respectively. X-ray fluorescence (Ba/Ti) and total organic carbon/total nitrogen (TOC/TN) ratios …


Intertidal Encounters: Centre For Sustainable Practice In The Arts Quarterly, Sarah Blissett, James Jordan Johnson, Cherry Truluck, Anastasia (A) Alevtin, Monstera Deliciosa, Arbonauts, Sam Hodge, Olga (F) Koroleva Jan 2025

Intertidal Encounters: Centre For Sustainable Practice In The Arts Quarterly, Sarah Blissett, James Jordan Johnson, Cherry Truluck, Anastasia (A) Alevtin, Monstera Deliciosa, Arbonauts, Sam Hodge, Olga (F) Koroleva

School of Art, Design and Architecture

Intertidal Encounters ask: what are the stories cast up by intertidal being/s and how do they come to matter?


Elizabeth Usher Memorial Lecture 2024: Speech-Language Pathology Practice In Aboriginal Spaces: A Journey Of Learning And Unlearning, Elizabeth Armstrong Jan 2025

Elizabeth Usher Memorial Lecture 2024: Speech-Language Pathology Practice In Aboriginal Spaces: A Journey Of Learning And Unlearning, Elizabeth Armstrong

Research outputs 2022 to 2026

In this paper I describe learnings gained from 15 years collaboration with Aboriginal colleagues in Australia, in endeavours to improve rehabilitation services for Aboriginal people with brain injury and their families. Colleagues include Aboriginal researchers, clinicians, and people with communication and other disorders associated with brain injury and their families. My research journey in this field has been made possible through the work, mentoring, and support of these colleagues who introduced me to Aboriginal ways of knowing, being, and doing. My journey has involved challenging and un-learning some widely accepted Western tenets of speech-language pathology practice in order to explore …


Extreme Value Theory Analysis Of High Emitter Trends Across Four Us Cities From 1995 To 2021, M. Matti Maricq, Gary A. Bishop Jan 2025

Extreme Value Theory Analysis Of High Emitter Trends Across Four Us Cities From 1995 To 2021, M. Matti Maricq, Gary A. Bishop

Fuel Efficiency Automobile Test Publications

Extreme value theory provides a direct means to characterize the distribution of high emitters within a vehicle fleet and calculate statistical confidence intervals for comparisons. Defining a “high emitter” as the maximum emitter in a random sample of N vehicles implies in the limit of large N that high emitters follow an extreme value distribution, comprised of three distinct domains. The analysis of over twenty years of roadside remote sensing emissions measurements in Chicago, Denver, Los Angeles and Tulsa reveals clear differences between gasoline vehicle high emitter distributions across pollutants (hydrocarbons (HC), carbon monoxide (CO) and nitric oxide (NO)), but …


What Are The Key Considerations Of Social Enterprises Planning To Scale, And How Do These Considerations Interact To Shape The Scaling Journey?, Clodagh O'Reilly Jan 2025

What Are The Key Considerations Of Social Enterprises Planning To Scale, And How Do These Considerations Interact To Shape The Scaling Journey?, Clodagh O'Reilly

Doctoral

Social enterprises are organisations that pursue dual social and commercial goals. With increasing social issues facing our global society today, as highlighted by the United Nations Sustainable Development Goals, social enterprises are well-positioned to respond and have a positive impact. Despite the increased recognition of the contribution of social enterprises, research into the phenomenon remains fragmented and underexplored. This study explores how social enterprises scale and what factors and elements are required. Furthermore, the research explores how the factors interconnect, interact and shape the scaling journey.


Digitised Dockyard: A Digital Twin For Multi-Objective Optimisation, Joseph Ross Jan 2025

Digitised Dockyard: A Digital Twin For Multi-Objective Optimisation, Joseph Ross

School of Engineering, Computing and Mathematics Theses

Digital twin technology is emerging as a transformative tool across multiple industries to digitally represent physical entities for monitoring and simulation. While many implementations focus on single systems or commercial applications, this thesis investigates the use of a digital twin to represent and optimise the operational logistics of a non-commercial, high-security maritime site. By treating the entire base as a holistic entity composed of interdependent systems, such as buildings, utilities, communications infrastructure, personnel, and services, the research explores how artificial intelligence techniques can be embedded within a digital twin to support decision-making.This thesis proposes and develops a bespoke digital twin …


Metamorphosis: An Evaluation Of The Adaptation And Re-Use Potential Of Suburban Housing For Older Homeowners, Michelle Moore Jan 2025

Metamorphosis: An Evaluation Of The Adaptation And Re-Use Potential Of Suburban Housing For Older Homeowners, Michelle Moore

Masters

Ireland’s population is ageing at a rate that is more than twice the EU average. Public policy in Ireland aims to support older persons to age-in-place. Over 80% of older adults in Ireland live in an owner-occupied home, following many decades of public policy promoting home ownership as the tenure of choice. Limited research has been undertaken on the housing adaptation options that could result in privately-owned homes being made more suitable for the evolving needs of the rapidly ageing demographic. This thesis addresses the hypothesis that, with the provision of an appropriate suite of enablers, older homeowners can be …


Exploring The Sustainability Of Single Use Plastics In The Biopharmaceuticals Sector: A Scoping Review Of Challenges, Opportunities And Impact, Cormac Mcmahon, Adrienne F. M. Fleming, Philip Owende, Malcolm Goggin Jan 2025

Exploring The Sustainability Of Single Use Plastics In The Biopharmaceuticals Sector: A Scoping Review Of Challenges, Opportunities And Impact, Cormac Mcmahon, Adrienne F. M. Fleming, Philip Owende, Malcolm Goggin

Articles

Single-use plastics (SUPs) are synonymous with the biopharmaceuticals sector, facilitating economies of scale, process efficiency, flexibility and sterility assurance, all with a seemingly negligible environmental footprint. Yet, in ever-tightening regulation, mandated by the Sustainable Development Goals (SDGs) and by concern for large-scale industrial impacts, the sustainability of SUP consumption is increasingly being questioned. Whilst the sector contributes to human welfare, its transition risk is unlikely to remain immune to societal pressure for more sustainable production. This paper aims to present a scoping review of the apparent contradiction between sectoral SUP adoption and the increasing importance of circularity. The approach to …


Children’S Outdoor Play Injuries: How Real Are Parental Concerns Of Danger In Outdoor Play?, Fiona Armstrong, David Gaul Jan 2025

Children’S Outdoor Play Injuries: How Real Are Parental Concerns Of Danger In Outdoor Play?, Fiona Armstrong, David Gaul

Research Outputs: 2025-Present

Risky play can be defined as any play that is thrilling or exciting, involving risk of injury [Sandseter, E. B. H. (2007). Categorising risky play—How can we identify risk-taking in children's play? European Early Childhood Education Research Journal, 15(2), 237–252.]. Risky play has been associated with danger and increased risk of injury, yet there is limited evidence relating to the prevalence of injuries because of play, with existing data mainly related to home and sports-related injuries [Gilmartin, S., Barrett, M., Bennett, M., Begley, C., Ni Chroinin, C., O’Toole, P., & Blackburn, C. (2022). The effect of national public health measures …


Understanding Urban Cultural Festivals As Social Infrastructure, Bernadette Quinn Jan 2025

Understanding Urban Cultural Festivals As Social Infrastructure, Bernadette Quinn

Research Outputs: 2025-Present

This paper is concerned with the role that urban cultural festivals play in enhancing the quality and vitality of social life. It acknowledges that their reputation has become tarnished in recent years and that festivals now frequently feature in debates because they are charged with inciting tensions, exclusions and contestations. However, of note here is that cities tend to narrowly conceive of festivals as temporarily bounded moments of commodifiable spectacle. The fact that festivals function, on an ongoing manner, as embedded, sustained practices capable of supporting urban social living in numerous ordinary ways is rarely acknowledged, much less prioritised. This …


Patient-Reported Outcomes, Postoperative Pain And Pain Relief After Day Case Surgery (Poppy): Methodology For A Prospective, Multicentre Observational Study*, William M. Hare, Martha Belete, Adam B. Brayne, Harriet Daykin, Matthew Everson, Anna Ratcliffe, Katie Samuel, Lexy Sorrell, Mark Rockett Jan 2025

Patient-Reported Outcomes, Postoperative Pain And Pain Relief After Day Case Surgery (Poppy): Methodology For A Prospective, Multicentre Observational Study*, William M. Hare, Martha Belete, Adam B. Brayne, Harriet Daykin, Matthew Everson, Anna Ratcliffe, Katie Samuel, Lexy Sorrell, Mark Rockett

Peninsula Medical School

Background: In the UK, approximately 70% of surgical procedures are undertaken as day-cases. Little information exists about recovery from day-case surgery, yet international data highlights patients are at risk of developing significant longer-term health problems including chronic post-surgical pain and persistent postoperative opioid use. The Patient-reported Outcomes, Postoperative Pain and pain relief after daY case surgery (POPPY) study was a national prospective multicentre observational study, measuring short- and longer-term patient-reported outcomes, postoperative pain and pain relief after day-case surgery. Methods: This was a collaborative project led by resident anaesthetists under the Research and Audit Federation of Trainees umbrella. Adult day-case …


Globalism, Localism And Blue Food Systems – How Can Cross-Scale Tensions Be Reduced? A Production Perspective From Uk Seafood Stakeholders, Alex J. Caveen, Bryce D. Stewart, Cameron Moffat, Daniel Skerritt, Estelle Jones, Huw Thomas, Lara Funk, Magnus Johnson, Mike Cohen, Michael Roach, Neil A. Auchterlonie, Samuel Peacock, Sarah Hussey, Tim Gray, Tom Pickerell, Umi Muawanah, Vasiliki Kioupi, Yvonne Sadovy De Mitcheson, Neil M. Burns, Charlotte R. Hopkins Jan 2025

Globalism, Localism And Blue Food Systems – How Can Cross-Scale Tensions Be Reduced? A Production Perspective From Uk Seafood Stakeholders, Alex J. Caveen, Bryce D. Stewart, Cameron Moffat, Daniel Skerritt, Estelle Jones, Huw Thomas, Lara Funk, Magnus Johnson, Mike Cohen, Michael Roach, Neil A. Auchterlonie, Samuel Peacock, Sarah Hussey, Tim Gray, Tom Pickerell, Umi Muawanah, Vasiliki Kioupi, Yvonne Sadovy De Mitcheson, Neil M. Burns, Charlotte R. Hopkins

School of Biological and Marine Sciences

‘Blue foods’ are derived from aquatic species that are caught or cultivated and are amongst the most globally traded commodities. Growing emphasis is being placed on blue foods in future transitions to sustainable food systems. However, recent international events such as the Covid-19 pandemic, UK-EU ‘Brexit’, and Russia-Ukraine war have caused renewed interest in ideological debates between globalism and localism and associated cross-scale tensions. Here, we aim to provide further insight into cross-scale tensions in blue food systems through a literature review and UK-based seafood stakeholder workshop. From our literature review, the evidence for cross-scale tensions was linked to the …


New Insights Into Active Tectonics And Landscape Evolution Of The Northernmost Chilean Central Depression, A. Vega-Ruiz, P. Victor, K. Reicherter, A. Binnie, L. Evenstar, G. González, S. A. Binnie Jan 2025

New Insights Into Active Tectonics And Landscape Evolution Of The Northernmost Chilean Central Depression, A. Vega-Ruiz, P. Victor, K. Reicherter, A. Binnie, L. Evenstar, G. González, S. A. Binnie

School of Geography, Earth and Environmental Sciences

Active deformation and landscape evolution in North Chilean forearc involve multiscale tectonic processes, such as crustal thickening causing orogenic-scale uplift and faulting modulating the mountain-front landscape. In the Central Depression, faults redirecting Quaternary drainages are poorly understood due to their subtle surface expressions and limited structural data acquisition. To address this, we combined remote-sensing analysis of high-resolution DEMs, satellite and UAV imagery, new geomorphic mapping, structural data, and morphometric analysis with available surface age dating to identify and give temporal constraints on previously unmapped faults impacting drainages across this region. Our findings reveal the reactivation of east-vergent NNW-SSE reverse to …


Sulfur Cycling In The Gabbroic Section Of The Oman Ophiolite, Ana P. Jesus, Harald Strauss, Mário A. Gonçalves, Michelle Harris, Diogo Silva, Martin J. Whitehouse, Damon A.H. Teagle Jan 2025

Sulfur Cycling In The Gabbroic Section Of The Oman Ophiolite, Ana P. Jesus, Harald Strauss, Mário A. Gonçalves, Michelle Harris, Diogo Silva, Martin J. Whitehouse, Damon A.H. Teagle

School of Geography, Earth and Environmental Sciences

We present sulfur mineralogy and isotope geochemistry from the gabbro transect of the Oman Drilling Project to unravel the sulfur cycle during hydrothermal alteration of the plutonic oceanic crust. The sheeted dike–gabbro transition (Hole GT3A) shows low sulfide‑sulfur concentrations (GT3Amedian = 178 ppm, σ = 4873 ppm) but with great sulfur isotope variability (δ34S = −12.8 to 14.4 ‰ V-CDT, weighted average + 5.8 ‰) and unusually heavy compositions relative to in-situ or ophiolitic crust. These features are consistent with abiogenic thermochemical sulfate reduction during intense hydrothermal alteration under greenschist facies conditions which formed a low-variance and …


Socioeconomic Status And Educational Opportunities Through The Eyes Of Students And Teachers: Diverse Realities, Shared Insights, Jill Schany Jan 2025

Socioeconomic Status And Educational Opportunities Through The Eyes Of Students And Teachers: Diverse Realities, Shared Insights, Jill Schany

Dissertations and Theses @ UNI

Sowl and Crain (2021) argue that despite recognizing the uniqueness of the place when it comes to rural demographics and needs, policies regarding education and the economy often prioritize urban areas, defining rural in opposition to urban without adequately addressing the specific needs of rural youth. Studies examining geographical disparities in educational outcomes traditionally concentrated on achievement gaps within urban and suburban areas, highlighting more startling gaps in cities with heightened racial, ethnic, and socioeconomic inequality and segregation. Literature also extensively discusses neighborhood effects on educational outcomes in densely populated regions, offering valuable insights into the distribution of educational opportunities …


Age As More Than A Number: An Applied Geography Of Elderly Vulnerability To Heat Events In The Southeastern United States, John Darko Jan 2025

Age As More Than A Number: An Applied Geography Of Elderly Vulnerability To Heat Events In The Southeastern United States, John Darko

Dissertations and Theses @ UNI

No abstract provided.


Enhanced Multidimensional Harmonic Retrieval In Mimo Wireless Channel Sounding, Yanming Zhang, Wenchao Xu, A. Long Jin, Tianquan Tang, Min Li, Peifeng Ma, Lijun Jiang, Steven Gao Jan 2025

Enhanced Multidimensional Harmonic Retrieval In Mimo Wireless Channel Sounding, Yanming Zhang, Wenchao Xu, A. Long Jin, Tianquan Tang, Min Li, Peifeng Ma, Lijun Jiang, Steven Gao

Electrical and Computer Engineering Faculty Research & Creative Works

This paper introduces a recursive parallel dynamic mode decomposition (RPDMD) scheme tailored for multidimensional harmonic retrieval (MHR), specifically applied to MIMO wireless channel sounding. The RPDMD algorithm is devised to address the complexities inherent in multidimensional scenarios, leveraging the dynamic mode decomposition (DMD) framework within a recursive parallel structure. Initially, the observed tensorial multidimensional harmonic data is transformed into a two-dimensional matrix format along the r-th dimension. Subsequently, DMD dissects this matrix data into eigenvalues and their associated modes. The real and imaginary components of the DMD eigenvalues yield damping factors and frequencies in the r-th dimension, respectively. Furthermore, recursive …


A Hybrid Method For Source Direction Finding With Radio Frequency Interference And Gaussian White Noise, Yanming Zhang, Wenchao Xu, Antonios Argyriou, A. Long Jin, Tianquan Tang, Peifeng Ma, Lijun Jiang, Steven Gao Jan 2025

A Hybrid Method For Source Direction Finding With Radio Frequency Interference And Gaussian White Noise, Yanming Zhang, Wenchao Xu, Antonios Argyriou, A. Long Jin, Tianquan Tang, Peifeng Ma, Lijun Jiang, Steven Gao

Electrical and Computer Engineering Faculty Research & Creative Works

This paper presents a hybrid data-driven method, termed moving average-Hankel-dynamic mode decomposition (MAHankDMD), for joint direction of arrival (DOA) and frequency estimation in environments affected by both radio frequency interference (RFI) and Gaussian white noise. The proposed approach integrates two key components: (1) a moving average-DMD filter that effectively mitigates Gaussian white noise and separates RFI from the source signal, and (2) a Hankel-DMD method that accurately estimates the DOA of the filtered signal and associates it with the corresponding frequency. The moving average-DMD stage first enhances the signal-to-noise ratio and improves the robustness of the estimation process through noise …