Digital Commons Network^™

Strategizing Success: Advancing Women's Leadership And Careers In Healthcare Through A Positive Gain Spiral, Farveh Farivar, Andrei A. Lux, Nasim Salehi

Research outputs 2022 to 2026

Purpose – Women’s career progression in healthcare continues to lag men’s, particularly at senior leadership levels, limiting organizational performance and weakening leadership pipelines. This study applies Conservation of Resources (COR) theory’s positive gains cycle to examine how supportive organizational environments and human resource management practices can accelerate women’s advancement from early career stages to senior leadership. Design/methodology/approach – Using a social constructivist approach, we conducted 30 in-depth interviews with Australian healthcare leaders (20 female and 10 male) across multiple organizational levels. Thematic analysis identified the resources and interactions that enable sustained leadership progression for women. Findings – Four interconnected resources, …

Association Between Protein Intake From Animal And Plant Sources And The Presence Of Frailty In Community-Dwelling Australian Women, Trent Bozanich, Jack Dalla Via, Simone Radavelli-Bagatini, Cassandra Smith, Elsa Dent, Anthony Villani, Robin M. Daly, Michael Tieland, Jonathan M. Hodgson, Kun Zhu, Richard L. Prince, Marc Sim

Research outputs 2022 to 2026

We investigated the cross-sectional association between total, animal and plant protein intake with the presence of a multidimensional measure of frailty in older women. Participants included 1380 community-dwelling Australian women, mean (SD) age 75.1 (2.7) years. A validated food frequency questionnaire was used to determine total, plant, and animal protein intake. Frailty was assessed using a frailty index across numerous health domains (scored 0–1, ≥0.25 indicating frailty). Cross-sectional associations were analysed using multivariable-adjusted logistic regression models. In total, 275 (19.9%) women were identified as frail. A non-linear inverse association was observed between higher intakes of total protein and the odds …

Cohort Profile: The Resilient Minds National Study Of Mental Health And Cognitive Resilience In Community Dwelling Adults Aged 18 To 93, Kaarin J. Anstey, Brooke Brady, Lidan Zheng, Jana Koch, Md Hamidul Huque, Michelle K. Lupton, Ralph Martins, Daniel Ashworth, Erin Goddard, Nikki Anne Wilson, Claudia M. Hillenbrand, Ralf B. Loeffler, Maria Markoulli, Arun V. Krishnan, Tanya Layton, Ranmalee Eramudugolla

Research outputs 2022 to 2026

Purpose: The Resilient Minds (ReMind) cohort was established to investigate cognitive and mental health resilience across the life course, addressing a gap in longitudinal evidence about resilience. The study collected data on traditional medical and lifestyle risk factors for chronic disease, genetics, and a range of mental health and cognitive outcomes. It also aimed to explore contemporary contextual influences on resilience, including internet use, social engagement, environmental exposures, and life course adversities such as perceived discrimination. Participants: The cohort included 1,640 adults aged 18–93 years, recruited through social media and community groups, to participate in a fully remote, two-year health …

Does Performing Partial Repetitions Beyond Momentary Failure Enhance Muscle Hypertrophy In Volume-Load-Equated Calf-Raise Resistance Training?, Amirali Goli, Parsa Attarieh, João Pedro Nunes, Saman Nehegadar, Saaed Khani, Mohmad Fashi, Sajjad Ahmadizad

Research outputs 2022 to 2026

The aim of this study was to determine whether extending traditional calf-raise resistance training sets with partial-range-of-motion (ROM) repetitions in the more dorsiflexed ROM enhances muscular hypertrophy. Sixteen untrained men (25.0±1.7y) completed 10 weeks of unilateral standing calf-raise training (2×/wk) in a within-subject design: one leg performed traditional 10-14RM sets to full-ROM momentary failure (MF; 4-6 sets/session) and the other leg performed half as many sets to full-ROM failure followed by partial-ROM repetitions to a second failure in the more dorsiflexed ROM (PBF; 2-3 sets/session). Total volume-load was equated between conditions; repetitions were counted the same way regardless of the …

Enhancing Physical Performance With Ischemic Preconditioning: A Systematic Review And Meta-Analysis Of Moderators And Performance Outcomes, Yilin Zhang, Kai Xu, Hao Kong, Mingyue Yin, Chenghao Liu, Yun Xie, Liam Kilduff, Gustavo R. Mota, Olivier Girard

Research outputs 2022 to 2026

This study examined the effects of ischemic preconditioning (IPC) on physical performance, considering the influence of timing, warm-up (WU), participant characteristics, and IPC protocols structure. A total of 90 trials (1,439 participants) were retrieved from three databases and assessed using PICOS criteria. Multilevel meta-analyses with cluster-robust variance adjustments were conducted to calculate pooled effect sizes (Hedge’s g). Risk of bias and certainty of evidence were assessed using the RoB 2 tool and GRADE framework. IPC produced a trivial but significant improvement in physical performance (g = 0.13, P < 0.01), which persisted after excluding SHAM effects (g = 0.10; P < 0.01). Significant improvements were observed for maximum repetitions, time to failure, and power output, but not for jump ability, strength, or oxygen uptake. Comparable benefits were found for anaerobic (g = 0.15) and aerobic (g = 0.10) exercise, with greater effects in males and less-trained participants. Performance was further enhanced when IPC was followed by WU (g = 0.16), with the optimal IPC-to-WU interval being ~42 minutes. Without WU, the effective IPC window narrowed to 6–7 minutes. In practice, IPC can enhance physical performance, independently of sham effects, moderated by sex, training level, and WU. For competition or testing, the most effective strategy appears to be 3 or 4 × 5-min IPC protocol, followed by a 42-min interval, standardized warm-up, and endurance testing. For mechanistic studies, WU should be excluded, and testing conducted 6-7 minutes post-IPC. Future research should target women, middle-aged individuals, and elite athletes.

Missing Planktivore Functions Drive Global Variation In Reef Fish Productivity, James Gahan, Helen F. Yan, David R. Bellwood, Graham J. Edgar, Leo T. Nankervis, Alexandre C. Siqueira, Rick D. Stuart-Smith, Sterling B. Tebbett

Research outputs 2022 to 2026

The functioning of high-diversity ecosystems, such as coral reefs, is intrinsically tied to the integrity and efficiency of the trophic pathways within these systems. Coral reef productivity depends, in part, on the input of external nutrients, primarily zooplankton, that is assimilated by extraordinarily diverse fish communities. The plankton–planktivore trophic pathway is thus crucial for sustaining the productivity that exemplifies coral reef ecosystems; however, it remains poorly understood at large spatial scales. Here we explore global patterns in reef fish community structure, revealing a major discrepancy between the Indo-Pacific and Caribbean in the productivity and fisheries potential of planktivorous reef fishes. …

Providing Help In Europe: Are In-Household Care And Outside-Household Support Associated With Grandparental Child Care?, Roosa Maria Savela, David A. Coall, Mirkka Danielsbacka, Antti O. Tanskanen

Research outputs 2022 to 2026

Grandparental child care is a vital form of social support that can enhance family well-being. Prior studies have found that older adults who provide support to one individual are more likely to offer help to others within their families and social networks. However, little research has examined whether helping others is associated with grandparental child care. Using data from the Survey of Health, Aging and Retirement in Europe, covering 27 countries, and using multinomial regression models, we show that (a) support provided to individuals outside the household is associated with increased grandparental child care, whereas (b) family care provided within …

Sexuality Education In An Age Of Resistance: Reflections At The Nexus Of Education, Health And Rights, Sarah Vrankovich, Katrina Marson, Giselle Woodley, Jordina Quain, Hanna Saltis

Research outputs 2022 to 2026

Comprehensive sexuality education (CSE) is internationally recognised as essential to public health and young people’s rights. Yet its implementation in Australia and globally is increasingly undermined by conservative backlash, moral panic and political interference. This paper offers a critical reflection on the current landscape of CSE, drawing on insights from a panel discussion at the 2025 World Association for Sexual Health congress, and collaborative analysis. As early-career researchers, sexologists and practitioners working across education, communications, public health and sexual violence prevention, we utilise our collective experience to examine how various influences shape and constrain the delivery of CSE. We map …

Stakeholder Co-Design Of Sustainable Urban Pest Management Strategies, Elizabeth C. Lowe, Nathan J. Butterworth, Alexander Austin, Cameron Webb, Tanya Latty

Research outputs 2022 to 2026

The high levels of broad-spectrum insecticides used to manage invertebrates in many cities around the world has significant environmental and health impacts. Integrated pest management (IPM) is a framework for sustainable pest control practice, but uptake of IPM remains low in most cities. We used participatory action research with pest management industry stakeholders (practitioners, industry representatives, researchers and government employees) to identify key issues in urban pest management in Australia, set priorities for change and discuss collaborative solutions. Via an online survey and a face-to-face workshop, the participants identified the key themes of education and training, public awareness, environmental impacts …

Tools Used To Measure Fear Avoidance Behaviour In The Management Of Mild Traumatic Brain Injury (Concussion), Liam Sherwood

Theses: Doctorates and Masters

Concussion can present challenges with respect to diagnosis and management. Fear avoidance behaviour and beliefs may be perpetuating factors in the clinical course of concussion. Understanding which patients may adopt such behaviours and beliefs can offer important information to allow tailoring of clinical management and implementing strategies to minimise the risk of progression to persisting post-concussion symptoms.

In this thesis, I:

-       systematically reviewed the current measurement tools used to assess fear avoidance behaviours and beliefs associated with concussion;

-       explored the experience of clinicians, researchers and people with lived experience of concussion in relation to fear avoidance behaviours;

- …

Synergistic Removal Of Microplastic Fibres: Integrating Chitosan Coagulation In Hybrid Water Pre-Treatment Systems, Jayasuriya Arachchilage Nimesha Thathsarani

Theses: Doctorates and Masters

Microplastic fibres (MPFs) are the most prevalent form of microplastics detected in the influents of water and wastewater treatment plants. Owing to their elongated shape and low density, MPFs frequently evade removal even during tertiary processes such as membrane filtration. Enhancing pretreatment, particularly through cost-effective coagulation-flocculation can reduce the treatment burden on downstream systems. However, conventional inorganic coagulants often necessitate high dosages and can leave residual ions, posing environmental concerns.

As a sustainable alternative, the use of environmentally friendly coagulants such as Chitosan has gained attention for MPF removal. While Chitosan exhibits favourable qualities, its practical application is hindered by …

Detecting Habitat Use Of Three Endemic Freshwater Fish Of Far Southwestern Australia, Paige Rhiannon Wilson

Theses: Doctorates and Masters

The wetland ecosystems of far southwestern Australia face multiple threats including land clearing, historical cattle grazing, changed hydrology, extensive groundwater extraction, and changed fire regimes. Each is exacerbated by a drying climate, and together they provide a significant challenge to the on-going survival of the freshwater fish in this region particularly fish that are endemic, range restricted, and therefore, more likely to be more vulnerable. This study focuses on three such species: Galaxiella munda, Galaxiella nigrostriata and Lepidogalaxias salamandroides, the latter two of which are known to aestivate.

In order to make conservation decisions regarding management of wetlands for …

Feasibility And Preliminary Efficacy Of Integrative Neuromuscular Training For Childhood Cancer Survivors: A Pilot Study, Anna Maria Markarian, U. Newton, Dennis Taaffe, Nicholas G. Gottardo, Santosh Valvi, Carolyn J. Peddle-Mcintyre, Jodie Cochrane Wilkie, Daniel A. Galvão

Research outputs 2022 to 2026

Background: Survivors of childhood acute lymphoblastic leukemia (ALL) often exhibit early deficits in muscle and movement competence, which can compromise long-term health. Integrative neuromuscular training (INT), a multifaceted approach combining fundamental movement activities with strength exercises, may help address these deficits during critical developmental periods. Methods: Eight children treated for ALL (aged 6–12 years) completed a supervised INT intervention (2 sessions/week for 8 weeks). Primary outcomes were feasibility (recruitment, retention, adherence, compliance, and tolerance) and program acceptability. Secondary outcomes included muscle function (isometric midthigh pull [IMTP], countermovement jump, and handgrip strength), dual-energy x-ray absorptiometry (DXA)-derived body composition, peripheral quantitative computed …

High Coral Thermal Tolerance At A Potentially Climate-Resistant Reef, Kate M. Quigley, C. Siqueira, Kira Brereton, Andrew H. Baird

Research outputs 2022 to 2026

Ecosystems globally are under increasing pressure from warming caused by climate change. However, some locations appear resistant to impacts. Although rare, these locations might be able to better resist damage from thermal stress. In marine environments, coral bleaching is widely viewed as one of the most pervasive stress responses threatening reef health, structure, and function. Yet we still have a poor understanding of the drivers of spatial and temporal variation in the scale and severity of coral bleaching. Here, we characterize a prolonged, intense, and widespread marine heatwave event and uncover a conspicuous lack of bleaching at the southernmost coral …

Multidimensional Sleep Health And Sleep Environment Factors In Individuals With Cancer Undergoing Outpatient Chemotherapy: An Exploratory Cross-Sectional Analysis, Sam Adams, D. Clay, Arman Hasani, Mitchell Turner, Travis Cruickshank

Research outputs 2022 to 2026

Purpose: Sleep problems are common amongst individuals with cancer receiving chemotherapy and are associated with poorer health outcomes. Considerable research to date has investigated specific sleep domains or symptomology, with little attention given to overall sleep health, which is more closely associated with overall health. This exploratory cross-sectional study aimed to characterize multidimensional sleep health in individuals with cancer reporting sleep complaints whilst undergoing chemotherapy, with exploratory examination of environmental associations. Patients and Methods: Twenty-three participants were included in this exploratory cross-sectional analysis. Participants were diagnosed with cancer within the last 6 months, undergoing outpatient chemotherapy at time of study …

Periodontitis During Pregnancy: The Effect On The Gut Microbiome And Intestinal Inflammation, Richard Bright, G. Macowan, Keyuan Tian, Tracy Fitzsimmons, Rebecca L. Wilson, Claire T. Roberts, Claus T. Christophersen, Peter M. Bartold, Stephen P. Kidd, Peter S. Zilm

Research outputs 2022 to 2026

Background: Periodontitis has been epidemiologically associated with adverse pregnancy outcomes, but causality remains difficult to establish in humans due to confounding factors. This study uses a controlled murine model to examine the effects of experimentally induced periodontitis on the composition of the gut microbiota and gastrointestinal inflammation during pregnancy. Methods: Periodontitis was induced in pregnant BALB/c mice via oral inoculation with Porphyromonas gingivalis and Fusobacterium nucleatum before conception (n = 20 per group). Pregnancy outcomes, gut histology, systemic inflammatory markers, and microbiome composition, assessed by 16S rRNA sequencing, were evaluated at gestational Day 18. Results: Periodontitis was confirmed by significant …

Photocatalytic Degradation Of Cephalexin, Amoxicillin, And Phenol Red Using A Green-Synthesized Folic Acid–Zno–Bi2o3 Nanoporous System, M. Sarani, Haghighi, P. Tamaddon, A. Najafidoust, P. Faghani-Eskandarkolaei, N. Sattarahmady

Research outputs 2022 to 2026

The persistent presence of pharmaceutical pollutants like amoxicillin (AMX) and cephalexin (CPX), and industrial dyes such as phenol red (PR) in wastewater poses serious ecological and public health risks, including antibiotic resistance. It necessitates efficient and low-cost remediation technologies. Photocatalysts employing innovative and engineered nanomaterials such as bismuth oxide (Bi2O3) and zinc oxide (ZnO) nanostructures exhibit considerable potential for eliminating pollutants. This study focused on the photodegradation of AMX, CPX, and PR utilizing green-synthesized folic acid–ZnO–Bi2O3 nanoparticles (F-Zn-Bi NPs) under visible light irradiation. Characterization of the synthesized photocatalyst was conducted using various techniques of powder x-ray diffraction (PXRD), field emission …

Chronic Disease Prevalence And Modifiable Risk Factors Among Undergraduate Students At Ha’Il University: A Population-Level Cross-Sectional Study, Collins Otieno Asweto, Sehar Un Nisa Hassan, Mohamed Ali Alzain, Bandar Alsaif, Mohammed Elshiekh Saeed, Ahmed Kassar, Kamal Elbssir Mohammed Ali, Mouna Ghorbel, Rafat Zrieq, Monzer Hamed, Wei Wang

Research outputs 2022 to 2026

Background: Rising rates of chronic conditions among Saudi youth underscore the need for early prevention. Using a public‑health lens focused on demographic, academic, and lifestyle influences, this study investigates the risk and protective factors for chronic disease among students at the University of Ha’il to guide youth‑centered health policies and long‑term wellbeing initiatives. Methods: A cross-sectional survey was conducted among 10,775 undergraduate students studying in bachelor’s degree programs at Ha’il University, Saudi Arabia. Descriptive analyses were used to assess demographic characteristics, academic status, health status, and health-related lifestyles. Multiple logistic regression models were applied to determine which demographic, academic, and …

Exploring The Dairy Milk Matrix Beyond Isolated Nutrients—A Narrative Review, Therese A. O’Sullivan, Analise Nicholl

Research outputs 2022 to 2026

The concept of the food matrix considers individual components along with how they are structured, interact, and are modified during processing. There is increasing interest around the health effects of individual nutrients versus whole foods, creating a need to better understand how the matrix may influence health outcomes. This narrative review explores the dairy milk matrix and compares health effects with those of isolated components, with additional comparisons to plant-based milk alternatives. Comparative evidence suggests that while calcium from food and supplements generally has similar effects (depending on the form of the supplemental calcium), consumption of food-based sources such as …

Gender Justice In The Triple Planetary Crisis: A Scoping Review, Catelyn Richards, Micah Peters, Julia Charalambous, Lila Singh-Peterson, Lucy Osborn, Aletha Ward, Jessica Leclair, Tracy Levett-Jones

Research outputs 2022 to 2026

Aim: To identify and report how gender justice is conceptualised and discussed in contemporary health literature in relation to the Triple Planetary Crisis of climate change, pollution and biodiversity loss, with a particular focus on the experiences of women and gender-diverse populations, and the representation of nurses and other healthcare professionals dominated by women. Design: Scoping review. Data Sources: Searches were conducted across MEDLINE (Ovid), Scopus, CINHAL, Embase and ProQuest, focusing on studies published from January 1 2000–23 September 2024. Review Methods: The review was conducted in accordance with the JBI methodology for scoping reviews and reported against the Preferred …

It Was Part Of The Plan, So I Showed Up: An Exploration Of Patient Experiences With An Embedded Exercise Referral Process During Cancer Treatment, Mary A. Kennedy, Jack Dalla Via, Kim Edmunds, Pam Eldridge, Yvonne Zissiadis, Lauren Fortington

Research outputs 2022 to 2026

Introduction: Exercise is a key part of cancer care, yet its integration into routine practice remains limited. This study explored the experiences of people living with and beyond cancer, with an updated, opt-out referral model embedded within a supportive oncology setting, focusing on initial engagement with exercise physiology appointments. Through this model, patients were automatically scheduled for a consultation with an in-house exercise professional during their cancer treatment. Methods: A qualitative descriptive design comprised of two focus groups with 13 participants was employed to explore views across pre-defined elements of the model: referral to exercise, appointments, counselling, and tailoring. Results: …

Peptidomic Profiling Of In Vitro Digesta From Diverse Microalgae Species, Sara Hamzelou, Damien Belobrajdic, Henri Brook, Wei Chen, Fletcher Hiten, Kim Lee Chang, Diane Purcell, Utpal Bose, Simone Osborne, Cassandra Pegg, Michelle L. Colgrave

Research outputs 2022 to 2026

Microalgae are a sustainable protein source, yet few species are used for human nutrition. This study evaluated eight species for protein quality, digestibility, and peptide profiles after simulated gastrointestinal digestion using INFOGEST. Amino acid content, and intestinal-phase peptide mixtures were analysed by mass spectrometry. The methanol precipitation method was used to separate digested (supernatant) and undigested (pellet) peptides following in vitro INFOGEST digestion. The pellet was further separated by molecular weight into 3–10 kDa and >10 kDa fractions to isolate the lower molecular weight peptides from the higher ones. This separation method enabled the identification of potential digested peptides within …

Putting Lived Experience At The Centre: A Critical Review Of Multidisciplinary, Person-Centred Mental Health Care, Laura Grattidge, Darren Haywood, Nicolas H. Hart, Bridget Elizabeth Hamilton, Ellie Fossey, Melissa Petrakis, David J. Castle

Research outputs 2022 to 2026

Purpose: Person-centred care is widely endorsed in mental health policy yet remains inconsistently enacted in multidisciplinary practice, particularly where services default to diagnostic dominance, risk management, and service-led priorities. This critical review examines what is required to operationalise person-centred, rights-based care across disciplines and settings, positioning lived and living experience as core expertise rather than a supplementary perspective and considering implications for suicide prevention. Methods: A critical review of peer-reviewed and grey literature was undertaken, focusing on person-centred and multidisciplinary mental health care. Five commonly used approaches were compared: the Optimal Health Program, the Strengths Model, Open Dialogue, traditional case …

A Metabolite-Dependent Mechanism By Which Bifidobacterium Animalis Subsp. Lactis Promotes Bacteroides Colonization, Khashayar Shahin, Liang Wang, Zihan He, Bomin Lv, Arya Van Alin, Richard Lo-Man, Hao Wu, Philippe Sansonetti, Jean Marc Collard

Research outputs 2022 to 2026

Prokaryote-prokaryote symbiotic relationships influence interactions within microbial communities, affecting colonization, survival, and organization. Unlike competition, consortium species facilitate growth via metabolite cross-feeding. This study explored interactions between two early human gut colonizers: partially aerotolerant Bifidobacterium spp. and strict anaerobic Bacteroides spp., using omics techniques. Promotion of Bacteroides spp. growth by Bifidobacterium animalis subsp. lactis was demonstrated through co-culture experiments in anaerobic conditions. Metabolomic analysis revealed over 150 unique metabolites present in B. animalis subsp. lactis supernatants are absent in other Bifidobacterium species, including 3-hydroxycapric acid, D-alanyl-D-alanine, 2-isopropylmalic acid, and D-glucose 2-phosphate. These compounds served as nutritional substrates, including carbon and …

Development Of A Clinical Prediction Model To Guide The Selective Use Of Spect/Ct In Papillary Thyroid Cancer, Liya Zhu, Junik Son, Lu Wang, Haifeng Hou, Byeong Cheol Ahn

Research outputs 2022 to 2026

Background: Radioiodine whole-body scan (WBS) is routinely performed after radioiodine therapy in papillary thyroid cancer (PTC), but its two-dimensional nature limits anatomical localization. The addition of single-photon emission computed tomography/computed tomography (SPECT/CT) improves diagnostic accuracy; however, routine use exposes patients to additional radiation, longer imaging time, and higher costs. This study aimed to establish a predictive model to identify which patients with PTC are more likely to benefit by adding SPECT/CT imaging after WBS, enabling selective rather than routine use. Methods: This retrospective study included 265 patients with pathologically confirmed PTC who underwent postoperative radioiodine therapy followed by WBS and …

Investigating The Changes In Attitudes Towards Science Among Pre-Service Elementary Teachers Enrolled In A Science Methods Course Using A New Version Of The Test Of Science Related Attitudes, Christopher S. Long, Becky Sinclair

Australian Journal of Teacher Education

This article examines the changes in student attitudes towards science among pre-service elementary teachers (PSETs), who were enrolled in a science methods course at a large public university in Texas, USA. A new version of the Test of Science Related Attitudes (TOSRA) called TOSRA-3 was used to measure six dimensions of attitudes towards science. TOSRA-3 was created in an effort to create a more economical, 35 items versus 70 items, version of the original TOSRA. TOSRA-3 was found to be valid and reliable for use with PSETs. Factor analysis suggests a six scale structure with a Cronbach’s Alpha for each …

Investigating The Impact Of Carboxylated Polystyrene Nanoplastics In The Liver Using Cell Lines And Precision-Cut Liver Slices, Namrata Pandey, Paula Boeira, Nathaniel J. Clark, Eleanor T. Walker, Somaiah Aroori, Jemimah Denson, Richard C. Thompson, Matthew E. Cramp, Shilpa Chokshi, Ashwin Dhanda

Peninsula Medical School

Background and Aims: Increasing reports of plastic accumulation in human tissue have raised concerns about potential adverse health outcomes. Evidence of negative effects of nanoplastics is heterogeneous and provides limited insights into the underlying pathogenic toxicity mechanisms in humans. Methods: In the present study, carboxylate-modified fluorescently labelled polystyrene nanoparticles (PS NPs) were used to investigate uptake and cytotoxicity in three different hepatic models of varying complexity, including HepG2 cells, IHH cells, and human precision-cut liver slices (hPCLS). Results: The results show model- and dose-dependent effects on hepatocytes. 74.2% ± 13.4% of the IHH cells showed PS NPs uptake at 0.1 …

Metabolic Syndrome Beyond Diagnostic Criteria: Population-Scale Integrative Metabolomics Characterization, Marwa Talal

Theses and Dissertations

Background: Metabolic syndrome (MetS) is a complex cluster of interrelated metabolic abnormalities associated with elevated cardiometabolic risk. While diagnosis is based on well-established five clinical criteria, these may overlook early or atypical metabolic alterations. Large-scale metabolomic profiling offers an opportunity to identify biochemical signatures of MetS beyond diagnostic bias and to evaluate their relative importance across different presentations of the syndrome.

Methods: Data from 117,147 UK Biobank participants were analyzed in a cross-sectional design. High-throughput NMR quantified 75 circulating metabolites, for. Univariate analyses, MetS subtype stratification, and elastic net models with SHAP interpretation were applied to assess feature …

Study Of Bearing Capacity Testing And Soil Preparation Techniques In Lunar Highlands Simulant At Field Scale, Christi A. Lecaptain

Dissertations, Master's Theses and Master's Reports

Humanity seeks to return to the surface of the Moon with the advent of the Artemis missions. These endeavors plan to be the beginning of a new era as NASA and other space organizations seek to establish a lunar base. Ahead of any astronauts or mining infrastructure, the physical groundwork will need to be laid to support the arrival of rockets, boots, and rover wheels. As surfaces are prepared, they will need to be tested and verified to ensure the stability of any structures placed on top. Understanding the bearing capacity is vital to soil quality testing. A standard terrestrial …

Identifying Controls On The Biodegradation Of Dissolved Organic Matter To Inform Microbial Fuel Cell Applications, Lily N. O'Hagan

Dissertations, Master's Theses and Master's Reports

Microbial fuel cells (MFCs) harness dissolved organic matter (DOM) biodegradation to generate power. To evaluate effects of DOM source, nutrients (nitrate and phosphate), and oxygen on DOM biodegradation, we conducted 4-day DOM biodegradation experiments with water and sediments from the Chesapeake Bay. Compared to soil-derived DOM, algal-derived DOM composition changed more and nearly doubled carbon dioxide (CO₂) production, peak CO₂ rates, and carbon removal, indicating MFC site selection should target regions with algal-rich DOM. Aerobic conditions increased CO₂ production by ca. 16%, doubled peak CO₂ rates, and reached peak rates 1 hour faster than anaerobic …