Digital Commons Network^™

A Novel Skin Cancer Prevention Strategy: Preservice Teachers' Perceptions Of A Sun Safety Intervention And Experiences In Schools, Joseph J. Scott, Robyn S. Johnston, Jill Darby, Sally Blane, Mark Strickland, Bronwen M. Mcnoe

Research outputs 2022 to 2026

Issue addressed:

Teachers play a vital role in developing children's sun protection routines however upskilling preservice teachers (PSTs) while at university has not yet been trialled as a targeted skin cancer prevention strategy. Hence, this study investigated PSTs perceptions and experiences of sun safety following a brief pilot intervention and placement in primary schools in Western Australia.

Methods:

This study used a triangulation mixed methods design. Participants (n = 161) completed a post intervention survey which was analysed quantitatively. A random sub-sample was invited to participate in focus groups (three groups, n = 21) and one-on-one interviews (n = 4). …

Spatial Heterogeneity In Sediment And Carbon Accretion Rates Within A Seagrass Meadow Correlated With The Hydrodynamic Intensity, Jiarui Lei, Rachel Schaefer, Phil Colarusso, Alyssa Novak, Juliet C. Simpson, Pere Masqué, Heidi Nepf

Research outputs 2022 to 2026

The majority of the carbon stored in seagrass sediments originates outside the meadow, such that the carbon storage capacity within a meadow is strongly dependent on hydrodynamic conditions that favor deposition and retention of fine organic matter within the meadow. By extension, if hydrodynamic conditions vary across a meadow, they may give rise to spatial gradients in carbon. This study considered whether the spatial gradients in sediment and carbon accretion rates correlated with the spatial variation in hydrodynamic intensity within a single meadow. Field measurements were conducted in three depth zones across a Zostera marina L. (eelgrass) meadow in Nahant …

An Empirical Examination Of The Antecedents Of Residents' Support For Of Future Film Tourism Development, Deborah Castro, Sangkyun Kim, Guy Assaker

Research outputs 2022 to 2026

This study aimed to develop and test a conceptual model of the antecedents of residents' attitudinal behavior to support future film tourism in a popular tourism destination. These antecedents include: socio-cultural impacts of existing tourism, place attachment, external perceived realism of media programs, and perceived importance of residents' involvement. A total of 416 survey questionnaires were completed from residents living in the province of Seville, Spain. Partial least squares-structural equation modelling (PLS-SEM) was used to examine the relationship between these factors and the residents' support for future film tourism (RSFFT). The results indicate that place attachment and perceived importance of …

Teaching Writing In Primary Education (Grades 1–6) In Australia: A National Survey, Anabela De Abreu Malpique, Debora Valcan, Deborah Pino-Pasternak, Susan Ledger

Research outputs 2022 to 2026

Providing adequate writing instruction and practice in schools is an essential cornerstone of writing development and it affords a diagnostic approach for teachers. But what writing instruction is being practiced in Australian primary schools? The aim of this study was to survey a sample of teachers (n = 310) about their instructional practices for writing and their preparation and self-efficacy to teach writing. The majority of the teachers surveyed indicated they allocated on average less than three hours per week for writing practice in their classrooms, with findings further showing a large variability in the frequency of writing practice ranging …

Teenagers Learn Through Play Too: Communicating High Expectations Through A Playful Learning Approach, Olivia Johnston, Helen Wildy, Jennifer Shand

Research outputs 2022 to 2026

Play-based learning is an approach used in early childhood education that is well supported by research on its varieties and effectiveness for young children’s learning. Play-based learning meets the developmental needs of young children, but new research presented in this paper suggests that teenagers learn through play too. The experience of 25 Year 10 students in three Western Australian government schools was drawn upon to generate grounded theory about how students experience their teachers’ expectations of them, which included findings that playful learning approaches communicated high teacher expectations. The students were shadow-studied in their classrooms and interviewed at the end …

Designing For Circularity: Sustainable Pathways For Australian Fashion Small To Medium Enterprises, Lisa Westover Piller

Research outputs 2022 to 2026

Purpose: Australians consume twice the global average of textiles and are deeply engaged in a linear take/make/waste fashion model. Furthermore the Australian fashion sector has some unique supply chain complications of geographical distances, sparse population and fragmentation in processing and manufacturing. This research aims to examine how Australian fashion small to medium enterprises (SMEs) are overcoming these challenges to run fashion businesses built around core principles of product stewardship (PS) and circularity.

Design/methodology/approach: SMEs make up 88% of the Australian apparel manufacturing sector. This qualitative exploratory study included in-depth interviews with three Australian fashion SMEs engaged in circular design practice, …

Determinants Of Intention To Use E-Wallet: Personal Innovativeness And Propensity To Trust As Moderators, Madugoda Gunaratnege Senali, Mohammad Iranmanesh, Fatin Nadzirah Ismail, Noor Fareen Abdul Rahim, Mana Khoshkam, Maryam Mirzaei

Research outputs 2022 to 2026

This study aims to investigate the determinants of intention to use e-wallets. Drawing on the technology acceptance model (TAM), the conceptual framework was developed. The study extends the TAM in the context of e-wallets, by testing the influences of product-related factors namely perceived compatibility, perceived risk, and perceived emotions and investigating the moderating impacts of personal innovativeness and propensity to trust. To conduct an empirical study, the data were collected from Malaysian individuals with no experience with e-wallets using an online survey. Data from 374 participants were obtained and analyzed using the partial least squares technique. The results showed that …

Public Procurement For Innovation Through Supplier Firms' Sustainability Lens: A Systematic Review And Research Agenda, Peter Adjei-Bamfo, Hadrian Geri Djajadikerta, Ferry Jie, Kerry Brown, Reza Kiani Mavi

Research outputs 2022 to 2026

Public sector purchasing processes are gaining increasing prominence as a demand-side innovation tool for addressing national sustainability challenges. Accordingly, there has been growing research attention to this topic. Prior studies suggest three key rationales that underlie the use of public sector procurement to drive innovation: (i) the buyer–user rationale (for creating new needs); (ii) the market/system failure rationale (for improving suppliers' capacity to innovate); and (iii) the public services rationale (for improving public services). However, operational activities at the upstream supply chain affecting the sustainable innovation capacities of supplier firms appear to be under-researched in the public procurement for innovation …

Powering Single-Cell Genomics To Unravel Circulating Tumour Cell Subpopulations In Non-Small Cell Lung Cancer Patients, Emmanuel Acheampong, Michael Morici, Afaf Abed, Samantha Bowyer, Du-Bois Asante, Weitao Lin, Michael Millward, Elin S. Gray, Aaron Beasley

Research outputs 2022 to 2026

Background

Circulating tumour cells (CTCs) are attractive “liquid biopsy” candidates that could provide insights into the different phenotypes of tumours present within a patient. The epithelial-to-mesenchymal transition (EMT) of CTCs is considered a critical step in tumour metastasis; however, it may confound traditional epithelial feature-based CTC isolation and detection. We applied single-cell copy number alteration (CNA) analysis for the identification of genomic alterations to confirm the neoplastic nature of circulating cells with only mesenchymal phenotypes.

Methods

We isolated CTCs from blood samples collected from 46 NSCLC patients using the Parsortix system. Enriched cells were subjected to immunofluorescent staining for CTC …

Impact Of Converging Sociocultural And Substance-Related Trends On Us Autism Rates: Combined Geospatiotemporal And Causal Inferential Analysis, Albert Stuart Reece, Gary Kenneth Hulse

Research outputs 2022 to 2026

Whilst cannabis is known to be toxic to brain development, it is unknown if it is driving rising US autism rates (ASMR). A longitudinal epidemiological study was conducted using national autism census data from the US Department of Education Individuals with Disabilities Act (IDEA) 1991–2011 and nationally representative drug exposure (cigarettes, alcohol, analgesic, and cocaine abuse, and cannabis use monthly, daily, and in pregnancy) datasets from National Survey of Drug Use and Health and US Census (income and ethnicity) and CDC Wonder population and birth data. Analysis was conducted in R. 266,950 were autistic of a population of 40,119,464 8-year-olds …

Integrated Clinical Pathways For Lower Limb Orthopaedic Surgeries: An Updated Systematic Review, Huaqiong Zhou, Irene M. Ngune, Pam Roberts, Phillip Della

Research outputs 2022 to 2026

Objective

The objective of the study was to comprehensively synthesise the components of integrated clinical pathways (ICPs) and post-operative outcomes of patients undergone total hip and knee arthroplasty (THA & TKA) and hip fracture surgeries.

Background

Previous systematic reviews examined components and effectiveness of ICPs for lower limb joint replacement and hip fracture surgeries.

Design and Methods

An updated systematic review guided by the Whittemore and Knafl (2005) framework. Electronic databases, Ovid MEDLINE, EBSCOhost-CINAHL, the Cochrane Reviews and Trails, EMBASE and PubMed, were searched from 2007 to 31 January 2021. Due to the heterogeneity of the methods and data collection …

Toward A Synthesis Of The Board-Strategy Relationship: A Literature Review And Future Research Agenda, Pieter-Jan Bezemer, Amedeo Pugliese, Gavin Nicholson, Alessandro Zattoni

Research outputs 2022 to 2026

Research Question/Issue

The strategy role of the board of directors is a contentious topic in both theory and practice and the debate on what boards should or should not do around firm strategy has intensified with changes in global corporate governance. Boards face interventionist regulatory developments, calls for changes in their composition, growing owner engagement, and societal questioning on the corporation's very purpose. With this review, we aim to assess how the research agenda in this area has evolved with these developments.

Research Findings/Results

Our analysis of 152 articles published in 45 high-quality journals between 2008 and 2020 reveals that …

The Impact Of Sleep-Wake Behaviour On Tennis Match Performance In Junior State Grade Tennis Players, Mitchell Turner, Philipp Beranek, Ian Dunican, Travis Cruickshank

Research outputs 2022 to 2026

Purpose:

To date, no study has investigated the extent to which sleep-wake behaviour (SWB) influences match performance in junior tennis players. This study aimed to assess the influence of SWB for the week and night before on match performance, particularly match analytics and activity.

Methods:

This study recruited 10 junior state grade tennis players who wore an actigraphy device and completed a sleep diary for the week before their match on two separate occasions throughout their competition season. Players wore a global positioning system device to track their movement during matches, and an experienced tennis coach recorded players' match analytics. …

Injury Profiles Of Police Recruits Undergoing Basic Physical Training: A Prospective Cohort Study, Nicole Merrick, Nicolas H. Hart, Andrea B. Mosler, Garth Allen, Myles C. Murphy

Research outputs 2022 to 2026

Purpose:

A lack of published epidemiological data among police recruits presents a major challenge when designing appropriate prevention programs to reduce injury burden. We aimed to report the injury epidemiology of Western Australian (WA) Police Force recruits and examine sex and age as injury risk factors

Methods:

Retrospective analyses were conducted of prospectively collected injury data from WA Police Force recruits between 2018–2021. Injury was defined as ‘time-loss’ and injury incidence rate per 1000 training days (Poisson exact 95% confidence intervals) was calculated. For each region and type of injury, the incidence, severity, and burden were calculated. The association between …

Covid-19 Two Years On: A Review Of Covid-19-Related Empirical Research In Major Tourism And Hospitality Journals, Songshan (Sam) Huang, Xuequn Wang

Research outputs 2022 to 2026

Purpose: This study aims to provide a timely review of the COVID-19-related empirical research published in 19 quartile one (Q1) and quartile two (Q2) tourism and hospitality journals in social science citation index (SSCI).

Design/methodology/approach: A total of 407 COVID-19-related empirical papers were collected from the 19 SSCI Q1 and Q2 tourism and hospitality journals via Scopus database. Thematic content analysis was supplemented with Leximancer software to identify the research themes/subthemes, research methods and countries/regions of research.

Findings: The study found studies of COVID-19’s impact on consumer behaviour predominate in number, followed by studies on response actions and recovery strategies, …

Care Visits: Obligations, Opportunities And Constraints For Vietnamese Grandparent Visitors In Australia, Hien Thi Nguyen, Loretta Baldassar, Raelene Wilding

Research outputs 2022 to 2026

In examining the ageing-migration nexus from a Global South perspective, this paper explores the obligations, opportunities and constraints of caregiving performed by Vietnamese grandparent visitors during their sojourns in Australia. Employing a grounded theory approach and care circulation framework, we investigate how grandparent visitors and adult migrant children experience and understand care and ageing in contexts of mobility, including an analysis of how gender, age, socio-economic contexts and culture shape and affect their care norms and practices. The analysis emphasizes the critical contributions that Vietnamese grandparents make to the reproductive labour of their adult migrant children who often face challenges …

With Great Power Comes Great Responsibility: Common Errors In Meta-Analyses And Meta-Regressions In Strength & Conditioning Research, Daniel Kadlec, Kristin L. Sainani, Sophia Nimphius

Research outputs 2022 to 2026

Background and Objective:

Meta-analysis and meta-regression are often highly cited and may influence practice. Unfortunately, statistical errors in meta-analyses are widespread and can lead to flawed conclusions. The purpose of this article was to review common statistical errors in meta-analyses and to document their frequency in highly cited meta-analyses from strength and conditioning research.

Methods:

We identified five errors in one highly cited meta-regression from strength and conditioning research: implausible outliers; overestimated effect sizes that arise from confusing standard deviation with standard error; failure to account for correlated observations; failure to account for within-study variance; and a focus on within-group …

Transforming Self-Perceived Self-Employability And Entrepreneurship Among Mothers Through Mobile Digital Sharing Economy Platforms: An Exploratory Case Study, Pi-Shen Seet, Uma Jogulu, Helen Cripps, Mehran Nejati

Research outputs 2022 to 2026

Purpose: This research focuses on the extent sharing economy transforms employability for women impacted by domestic and reproductive work. The authors explore the experience of mothers, of how digital peer-to-peer (P2P) platforms can affect their self-perceived employability and skills deterioration by unlocking human capital through technology acceptance.

Design/methodology/approach: This study adopted a pragmatism-based approach incorporating using a single-case study research design with the Gioia methodology. It utilised a semi-structured telephone survey to collect data to explore the decisions around usage of a newly developed mobile P2P app, aiming to support employability among mothers. Analysis was conducted inductively using thematic analysis …

The Impact Of Acute Calcium Intake On Bone Turnover Markers During A Training Day In Elite Male Rowers, Bronwen Lundy, Alannah K. A. Mckay, Nikita C. Fensham, Fensham, Nicolin Tee, Bryce Anderson, Aimee Morabito, Megan L. R. Ross, Marc Sim, Kathryn Ackerman, Louise M. Burke

Research outputs 2022 to 2026

Introduction: While an acute exercise session typically increases bone turnover markers (BTM), the impact of subsequent sessions and the interaction with pre-exercise calcium intake remains unclear despite the application to the ‘real life’ training of many competitive athletes. Methods: Using a randomized crossover design, elite male rowers (n = 16) completed two trials, a week apart, consisting of two 90-minute rowing ergometer sessions (Ex1, Ex2) separated by 150 minutes. Prior to each trial, participants consumed a high (CAL: ~1000 mg) or isocaloric low (CON: < 10 mg) calcium meal. Biochemical markers including parathyroid hormone: PTH; serum ionised calcium (iCa) and bone turnover markers (C-terminal telopeptide of type I collagen: β-CTX-I; osteocalcin: OC) were monitored from baseline to 3 hours post Ex2. Results: While each session caused perturbances of serum iCa, CAL maintained calcium concentrations above those of CON for most time points, 4.5 and 2.4 % higher post EX1 and EX2 respectively. The decrease in iCa in CON was associated with an elevation of blood PTH (p < 0.05) and β-CTX-I (p < 0.0001) over this period of repeated training sessions and their recovery, particularly during and after Ex2. Pre-exercise intake of calcium-rich foods lowered BTM over the course of a day with several training sessions. Conclusions: Pre-exercise intake of a calcium-rich meal prior to training sessions undertaken within the same day had a cumulative and prolonged effect on the stabilisation of blood iCa during exercise. In turn, this reduced the post-exercise PTH response, potentially attenuating the increase in markers of bone resorption. Such practical strategies may be integrated into the athlete’s overall sports nutrition plan, with the potential to safeguard long term bone health and reduce the risk of bone stress injuries.

Perceptions And Experiences Of Career Success Among Aspiring And Early Career Accountants And The Role Of Organisational Support, Denise Jackson, Julia Richardson, Grant Michelson, Rahat Munir

Research outputs 2022 to 2026

Positive perceptions of career success are critical among accounting professionals, given their connection with performance, turnover and organisational commitment. Drawing on career stage theory, this study explores the perceptions and experiences of career success among 475 aspiring (Accounting/Finance students), 305 early career accountants (ECAs) and 165 managers/recruiters in Australia. Findings reflected both objective and subjective dimensions of career success alongside notable differences between aspiring accountants and ECAs, highlighting shifting views across the career stages of exploration and establishment. While ECAs were largely positive about their access to career success, managers/recruiters identified ways to create further opportunities for ECAs' career success.

Efficacy And Safety Of Acupuncture For Depression: A Systematic Review And Meta-Analysis, Binglei Chen, Carol C. Wang, Khui Hung Lee, Jianhong C. Xia, Zongting Luo

Research outputs 2022 to 2026

Acupuncture is widely accepted as a therapeutic option for managing depression. However, evidence from clinical trials remains controversial. This review aims to synthesize the best available evidence on the efficacy and safety of acupuncture in managing depression. The review was performed according to PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analysis) guidelines. Five databases and the relevant trial registries were searched from the inception to October 2021. Randomized clinical trials of acupuncture for managing depression, published in English, were selected for inclusion. The quality of included studies was assessed using the Cochrane risk of bias tool. Netmeta and dmetar …

Long Future Frame Prediction Using Optical Flow Informed Deep Neural Networks For Enhancement Of Robotic Teleoperation In High Latency Environments, Md Moniruzzaman, Alexander Rassau, Douglas Chai, Syed M. S. Islam

Research outputs 2022 to 2026

High latency in teleoperation has a significant negative impact on operator performance. While deep learning has revolutionized many domains recently, it has not previously been applied to teleoperation enhancement. We propose a novel approach to predict video frames deep into the future using neural networks informed by synthetically generated optical flow information. This can be employed in teleoperated robotic systems that rely on video feeds for operator situational awareness. We have used the image-to-image translation technique as a basis for the prediction of future frames. The Pix2Pix conditional generative adversarial network (cGAN) has been selected as a base network. Optical …

Interactive Technology Use And Child Development: A Systematic Review, Diana Arabiat, Mohammad A. Jabery, Suzanne Robinson, Lisa Whitehead, Evalotte Mörelius

Research outputs 2022 to 2026

Background

There is mixed evidence regarding the impact of interactive digital devices on child development. Tentatively some studies suggested that the use of digital devices may correlate negatively with language, executive function, and motor skills. However, attempts to amalgamate this evidence has been limited related to the available number of experimental and cohort studies that have evaluated the impact of digital technology use on child development. We conducted this review to determine the impact of interactive digital devices on child development among children aged 7 years or younger. Interactive technology has been defined as methods, tools, or devices that users …

Does High-Velocity Resistance Exercise Elicit Greater Physical Function Benefits Than Traditional Resistance Exercise In Older Adults? A Systematic Review And Network Meta-Analysis Of 79 Trials, Pedro Lopez, Anderson Rech, Maria Petropoulou, Robert Newton, Dennis Taaffe, Daniel A. Galvão, Douglas P. J. Turella, Sandro R. Freitas, Régis Radaelli

Research outputs 2022 to 2026

Background

A systematic review and network meta-analysis was undertaken to examine the effectiveness of different modes of resistance exercise velocity in fast walking speed, timed-up and go, 5-times sit-to-stand, 30-second sit-to-stand, and 6-minute walking tests in older adults.

Methods

CINAHL, Embase, LILACS, PubMed, Scielo, SPORTDiscus, and Web of Science databases were searched up to February 2022. Eligible randomized trials examined the effects of supervised high-velocity or traditional resistance exercise in older adults (ie, ≥ 60 years). The primary outcome for this review was physical function measured by fast walking speed, timed-up and go, 5-times sit-to-stand, 30-second sit-to-stand, and 6-minute walking …

Impact Of Work-Integrated Learning And Co-Curricular Activities On Graduate Labour Force Outcomes, Denise Jackson, Anna Rowe

Research outputs 2022 to 2026

The explicit linking of institutional funding to in-curricular industry engagement and graduate employment affirms the strategic importance of enhancing graduate employability in Australia. Key strategies to enhance graduate employability and employment outcomes are work-integrated learning (WIL) (where students engage with industry as part of their formal learning and assessment) and co-curricular activities (e.g. volunteering, leadership/award, and mentoring programmes), which are facilitated by the university but not embedded into curricula. While WIL is widely recognised for enhancing different aspects of student employability, the impact of co-curricular activities is less well-known. Further, there is a lack of empirical analysis on the nuanced …

Ecohydrology Of Coastal Aquifers In Humid Environments And Implications Of A Drying Climate, Madeleine Dyring, Harald Hofmann, David Stanton, Patrick Moss, Ray Froend

Research outputs 2022 to 2026

Coastal groundwater-dependent ecosystems (GDEs), such as wetlands, estuaries and mangrove forests, are globally important habitats that promote biodiversity, provide climate regulation and serve as refugia for plant and animal communities. However, global warming, coastal development and over-abstraction threaten the availability and quality of groundwater in coastal aquifers and, by extension, the ecohydrological function of dependent ecosystems. Because ecohydrological knowledge of coastal groundwater is disparate across disciplines and habitat types, we begin by summarising the physiochemical, biological and hydrological processes supported by groundwater across coastal watersheds. Groundwater makes a significant but poorly recognised contribution to the function and resilience of coastal …

No Effect Of Repeated Post-Resistance Exercise Cold Or Hot Water Immersion On In-Season Body Composition And Performance Responses In Academy Rugby Players: A Randomised Controlled Cross-Over Design, Barry G. Horgan, Shona L. Halson, Eric J. Drinkwater, Nicholas P. West, Nicolin Tee, Rebekah D. Alcock, Dale W. Chapman, G. Gregory Haff

Research outputs 2022 to 2026

Purpose:

Following resistance exercise, uncertainty exists as to whether the regular application of cold water immersion attenuates lean muscle mass increases in athletes. The effects of repeated post-resistance exercise cold versus hot water immersion on body composition and neuromuscular jump performance responses in athletes were investigated.

Methods:

Male, academy Super Rugby players (n = 18, 19.9 ± 1.5 y, 1.85 ± 0.06 m, 98.3 ± 10.7 kg) participated in a 12-week (4-week × 3-intervention, i.e., control [CON], cold [CWI] or hot [HWI] water immersion) resistance exercise programme, utilising a randomised cross-over pre–post-design. Body composition measures were collected using dual-energy X-ray …

Plasma Aβ42/40 Ratio, P-Tau181, Gfap, And Nfl Across The Alzheimer's Disease Continuum: A Cross-Sectional And Longitudinal Study In The Aibl Cohort, Pratishtha Chatterjee, Steve Pedrini, James D. Doecke, Rohith Thota, Victor L. Villemagne, Vincent Doré, Abhay K. Singh, Penghao Wang, Stephanie Rainey-Smith, Christopher Fowler, Kevin Taddei, Hamid R. Sohrabi, Mark P. Molloy, David Ames, Paul Maruff, Christopher C. Rowe, Colin L. Masters, Ralph N. Martins, Aibl Research Group

Research outputs 2022 to 2026

Introduction:

Plasma amyloid beta (Aβ)1-42/Aβ1-40 ratio, phosphorylated-tau181 (p-tau181), glial fibrillary acidic protein (GFAP), and neurofilament light (NfL) are putative blood biomarkers for Alzheimer's disease (AD). However, head-to-head cross-sectional and longitudinal comparisons of the aforementioned biomarkers across the AD continuum are lacking.

Methods:

Plasma Aβ1-42, Aβ1-40, p-tau181, GFAP, and NfL were measured utilizing the Single Molecule Array (Simoa) platform and compared cross-sectionally across the AD continuum, wherein Aβ-PET (positron emission tomography)–negative cognitively unimpaired (CU Aβ−, n = 81) and mild cognitive impairment (MCI Aβ−, n = 26) participants were compared with Aβ-PET–positive participants across the AD continuum (CU Aβ+, n = …

Vitamin D Supplementation And Exercise For Improving Physical Function, Body Composition And Metabolic Health In Overweight Or Obese Older Adults With Vitamin D Deficiency: A Pilot Randomized, Double-Blind, Placebo-Controlled Trial, Jakub Mesinovic, Alexander J. Rodriguez, Mavil May Cervo, Anoohya Gandham, Cecilia L. H. Xu, Costas Glavas, Barbora De Courten, Ayse Zengin, Peter R. Ebeling, David Scott

Research outputs 2022 to 2026

Purpose:

Vitamin D supplementation may have non-skeletal health benefits and enhance exercise responsiveness, particularly in those with low vitamin D levels. We determined whether, compared with placebo, vitamin D supplementation taken prior to and during a 12-week exercise program improves physical function, body composition or metabolic health, in overweight and obese older adults with vitamin D deficiency.

Methods:

Fifty overweight or obese older adults (mean ± SD age: 60 ± 6 years; BMI 30.6 ± 5.7 kg/m2) with vitamin D deficiency (25-hydroxyvitamin D [25(OH)D] < 50 nmol/L) were recruited. Participants were randomly allocated to receive either vitamin D3 (4000 IU/day) or matching placebo for 24 weeks. Between weeks 12 and 24, all participants completed multi-modal exercise three days per week while continuing with vitamin D/placebo. Mean changes in physical function (primary outcome: gait speed), body composition and biochemical parameters at weeks 12 and 24 were compared between groups.

Results:

Vitamin D supplementation, with or without exercise, had no effect on gait speed. From baseline …

Synergistic Effects Of Microplastics And Organic Foulants On The Performance Of Forward Osmosis Membranes, Mitra Golgoli, Mehdi Khiadani, Tushar Kanti Sen, Amir Razmjou, Michael L. Johns, Masoumeh Zargar

Research outputs 2022 to 2026

Microplastics (MPs) are emerging contaminants that are abundantly present in the influent and effluent of wastewater treatment plants (WWTPs). Forward osmosis (FO) is an advanced treatment technology with potential applications in WWTPs. The presence of MPs in WWTP effluents can contribute to FO fouling and performance deterioration. This study focuses on FO membrane fouling by MPs of different sizes, and the interactional impacts of MPs and Humic acid (HA) (as the most common organic foulant in WWTPs) on FO membrane performance. The synergistic effect of combined MPs and HA fouling is shown to cause higher flux decline for FO membranes …