Search Results (3,099)

Reliable probabilistic wind speed forecasts are essential for integrating renewable energy into power grids and managing operational uncertainty. This study compares Quantile Regression Forests (QRF), Bayesian Additive Regression Trees (BART), and Gaussian Process Regression (GPR) under at-site and regional pooled frameworks using 21 years (2000–2020) of daily wind data from eleven stations in New South Wales and Queensland, Australia. Models are evaluated via strict year-based holdout validation across seven metrics: RMSE, MAE, R², bias, correlation, coverage, and Continuous Ranked Probability Score (CRPS). Regional QRF achieves exceptional point forecast stability with minimal RMSE increase but suffers persistent under-coverage, rendering probabilistic bounds unreliable. BART attains near-nominal coverage at individual sites but experiences catastrophic calibration collapse under regional pooling, driven by fixed noise priors inadequate for spatially heterogeneous data. In contrast, GPR maintains robust probabilistic skill regionally despite larger point forecast RMSE penalties, achieving the lowest overall CRPS and near-nominal coverage through kernel-based variance inflation. Variable importance analysis identifies surface pressure and minimum temperature as dominant predictors (60–80%), with spatial covariates critical for regional differentiation. Operationally, regional QRF is prioritised for point accuracy, regional GPR for calibrated probabilistic forecasts in risk-sensitive applications, and at-site BART when local data suffice. These findings show that Bayesian machine learning methods can effectively navigate the trade-off between local specificity and regional pooling, a challenge common to wind forecasting in diverse terrain globally. The methodology and insights are transferable to other heterogeneous regions, providing guidance for probabilistic wind forecasting and renewable energy grid integration. Full article

Staphylococcus aureus is a major opportunistic pathogen responsible for a wide spectrum of human infections, including severe and difficult-to-treat cases. The emergence of multidrug-resistant strains limits the efficacy of conventional antibiotic therapies and poses a significant global public health challenge. In this context, the search for novel antibiotics has intensified, with increasing interest in marine resources, an ecosystem still largely underexplored. Marine bacteria produce a vast array of secondary metabolites with unique structures and potentially novel modes of antibacterial action. Several compounds isolated from marine bacterial strains have demonstrated promising activity against multidrug-resistant S. aureus, including antivirulence effects such as biofilm formation and Quorum-Sensing inhibition. This review explores the potential of marine bacteria as a source of new antibiotics against S. aureus, discusses both classical and advanced strategies for the discovery of bioactive molecules, and highlights the scientific and technological challenges involved in translating these findings into clinical applications. Full article

The construction sector generates a substantial proportion of Australia’s total solid waste, underscoring the urgent need for sustainable and circular resource management approaches to mitigate environmental impacts. This study evaluates the environmental performance and circularity potential of construction and demolition waste (C&DW) management across five Australian states. Three representative building cases were modelled using both national-average and state-specific recycling rates and electricity generation mixes. A Life Cycle Assessment (LCA) was conducted to compare two end-of-life pathways: landfill and recycling. Key parameters, including transport distance and substitution ratio, were also examined to assess their influence on carbon outcomes. The results show that regional variations in electricity generation mix and recycling rate have a strong influence on the total Global Warming Potential of C&DW management. States with cleaner electricity grids and higher recycling rates, such as South Australia, exhibited notably lower recycling-related emissions than those relying on fossil-fuel-based power. The findings highlight the importance of incorporating regional characteristics into sustainability assessments of C&DW management and provide practical insights to support Australia’s transition toward a circular and low-carbon construction industry. Full article

Wildfires profoundly impact carbon cycles, climate, and human societies. However, a comprehensive understanding of the long-term spatiotemporal characteristics and influencing factors of global wildfires remains limited. This study analyzes the spatiotemporal patterns and influencing factors of wildfires from 1982 to 2018 using a global satellite-derived burned area (BA) product. We classified fire-prone regions into four types based on climate: Tropical dry season (Tr-ds), Arid fuel-limited (Ar-fl), Boreal hot season (Bo-hs), and Temperate dry and hot season (Te-dhs). Major fire hotspots include Africa, northern Australia, South America’s Brazilian highlands, the Indochina Peninsula, and Central Asia. The global multi-year average BA is 4.59 × 10⁸ ha yr⁻¹, with Africa (3.04 × 10⁸ ha yr⁻¹) and northern Australia (2.83 × 10⁷ ha yr⁻¹) being the most affected. Fire activity peaks annually in July–September and December–January. From 1982 to 2018, both the global and sub-regional BA show significant increasing trends, except northern and temperate areas, though reduced burn-down areas from shorter periods have been reported during the MODIS era. At both the global scale and in the Tr-ds region, wildfire activity is strongly associated with hot and dry conditions in combination with abundant fuel availability. Fire activity in the Ar-fl region is mainly constrained by fuel availability. Surface dryness plays a dominant role in fire activity in the Bo-hs. In contrast, fire activity in the Te-dhs region shows no clear pattern. The influence of different factors on the BA is subject to threshold effects. These findings contribute to a deeper understanding of long-term wildfire dynamics across different regions globally. Full article

Phloeosinus cupressi Hopkins is an invasive bark beetle that poses a serious threat to Cupressus trees, with potential ecological and economic impacts globally. Native to North America, it has spread to Australia and New Zealand, and climate change may further alter its range. Global trade increases the risk of spread, highlighting the need for predictive modeling in management. In this study, we employed CLIMEX and random forest (RF) models to project the potential global distribution of P. cupressi, incorporating host distribution data for Cupressus. Climatic suitability is concentrated in temperate, subtropical, and Mediterranean zones, including Europe, the U.S., South America, China, Australia, and New Zealand, totaling 10,165.22 × 10⁴ km². Coldest-quarter precipitation (bio19) and annual temperature range (bio7) were identified as the most influential variables. Under RCP6.0 scenarios, suitable areas are projected to expand northward, increasing by ~18%. Regional shifts include contraction in southern Europe and South China, expansion in southern Argentina, southeastern Australia, and coastal New Zealand. Temperature sensitivity is expected to exceed precipitation, enhancing colonization. Due to global Cupressus trade, quarantine and monitoring should focus on high-risk regions. Our findings support early detection, long-term monitoring, and control measures for managing P. cupressi under climate change. Full article

This study proposes and validates a comprehensive model of the determinants of online travel company success by establishing the relationships between a properly conceptualized higher-order e-service quality construct, perceived value, and satisfaction on customer loyalty and customers’ citizenship behavior. The model was tested using structural equation modeling and data collected on 257 US travelers. Results reveal that e-service quality positively influences customers’ loyalty and citizenship behavior both directly and indirectly (through perceived value and satisfaction). Perceived value also exerts a direct positive influence on satisfaction. The results provide theoretical and practical implications by helping to demystify the relationships between the tested variables, as well as by increasing our understanding of the determinants of success in online travel websites. Full article

As global demand for critical minerals intensifies with the expansion of energy transition technologies and advanced manufacturing, developing sustainable and efficient exploration strategies has become a national priority. In this shift, AI-driven exploration technologies are emerging as a transformative force, reshaping how mineral resources are discovered, assessed, and managed. This study analyzes the global research landscape in critical mineral exploration by examining patent and scientific publication data to evaluate both research efficiency and knowledge spillover capacity. Using data envelopment analysis and super-efficiency modeling, we compare national R&D performance, identify leading countries, and quantify diffusion dynamics. The results reveal significant disparities: countries such as the United States, South Korea, and Canada demonstrate high research efficiency and strong spillover effects, supported by active innovation ecosystems and technological adoption. In contrast, resource-rich nations including China, Australia, and Russia show limited diffusion due to weaker AI-based innovation incentives and insufficient industry–academia collaboration. Italy stands out as an effective model of policy-driven R&D utilization and technological diffusion. These findings highlight the strategic importance of combining AI-enabled exploration, qualitative research impact, and international cooperation. The study offers policy implications for countries seeking to strengthen resource security and enhance competitiveness through sustainable and innovation-driven mineral exploration. Full article

First Nations children remain dramatically over-represented in Australia’s Out-of-Home Care (OOHC) system, particularly in New South Wales (NSW), which continues to report the highest numbers nationally. This narrative review, grounded in a relational First Nations Standpoint Theory and decolonising research paradigms, to critically examine the systemic, structural, and historical factors contributing to these disproportionalities. Drawing on interdisciplinary evidence across law, criminology, education, health, governance studies, and public policy, the analysis centres Indigenous-authored scholarship and contemporary empirical literature, including grey literature, inquiries, and community-led reports. Findings reveal that the OOHC system reproduces the colonial logics that historically drove the Stolen Generations. Macro-level structural drivers—including systemic racism, Indigenous data injustice, entrenched poverty and deprivation, intergenerational trauma, and Westernised governance frameworks—continue to shape child protection policies and practices. Micro-level drivers such as parental supports, mental health distress, substance misuse, family violence, and the criminalisation of children in care (“crossover children”) must be understood as direct consequences of structural inequality rather than as isolated individual risk factors. Current placement and permanency orders in NSW further compound cultural disconnection, with ongoing failures to implement the Aboriginal and Torres Strait Islander Child Placement Principle (ATSICPP). Contemporary cultural rights and Indigenous Cultural and Intellectual Property (ICIP) frameworks highlight the urgency of restoring Indigenous authority in decision-making processes. The literature consistently demonstrates that cultural continuity, kinship networks, and ACCO-led models are sort to produce stronger long-term outcomes for children. The review concludes that genuine transformation requires a systemic shift toward Indigenous-led governance, community-controlled service delivery, data sovereignty, and legislative reform that embeds cultural rights and self-determination. Without acknowledging the structural drivers and redistributing genuine power and authority, the state risks perpetuating a cycle of removal that mirrors earlier assimilationist policies. Strengthening First Peoples governance and cultural authority is therefore essential to creating pathways for First Nations children to live safely, remain connected to family and kin, and thrive in culture. Full article

The Austro-American Side-necked Turtles originated in Gondwana and are found only in South America and Australasia. This paper aimed to review the reproductive aspects of the Chelidae family systematically. The searches were conducted in several databases, resulting in 86 studies, of which only 21 were considered adequate. The research was mainly conducted in Australia and Brazil, in both natural and laboratory settings, across different ontogenetic stages among the sixteen species studied. The analyzed publications focused on different aspects of the reproductive biology of the Chelidae family, including ecology, anatomy, morphology, behavior, and other perspectives. Thus, this study aimed to answer questions related to reproduction and the factors that can affect the preparation, mating, sexual activity, and oviposition phases, highlighting the most researched areas and those that still require attention for the conservation of these species. Full article

Background: Maintaining physical activity (PA) is vital for older people, particularly those with frailty and mobility limitations. Wearable activity trackers and digital feedback tools show promise for encouraging PA, but their feasibility and acceptability in aged care remain underexplored. This study evaluated the feasibility and acceptability of using wearable and mobile devices for step tracking and examined the usability of three interfaces (Fitbit, mobile app, and website) for reviewing PA progress in aged care. Methods: This is a user experience and feasibility study that does not involve objective physical activity quantification or device performance analysis. It is a mixed-methods feasibility study conducted with 14 participants aged ≥65 years from residential and community aged care services in metropolitan and regional New South Wales, Australia. Participants used a Fitbit Inspire 3 linked to a study website and a mobile phone step-counting app to monitor their steps across the three interfaces for four weeks. Feasibility was evaluated through enrolment and retention, and acceptability through a facilitator-led survey. Quantitative items on usability, comfort, motivation and device preference were summarised descriptively; open-ended responses were analysed thematically to identify user experiences, benefits, and barriers. Results: Step tracking was feasible, with 82% enrolment and 93% retention. Participants preferred the Fitbit over the mobile phone or website due to its ease of use, visibility and more enjoyable experience. Step tracking increased awareness of PA and supported confidence to move more. Participants valued reminders, rewards and opportunities for social sharing. Reported barriers included illness, usability challenges and occasional technical issues. Conclusions: Wearable step trackers show promise for supporting PA among older people receiving aged care. Despite the small sample and short follow-up, strong acceptability signals suggest that simple digital tools could enhance the reach and sustainability of mobility-promoting interventions into aged care systems. Future studies should examine long-term adherence, usability across diverse mobility and cognitive needs, and conditions for successful scale-up. Full article

Background/Objectives: Antimicrobial resistance is an escalating public health threat. Despite the low prevalence of community-acquired bacterial coinfection (CABC) in patients presenting with COVID-19, antibiotics are frequently prescribed. We evaluated antibiotic prescribing for suspected CABC in adults admitted with COVID-19 to a metropolitan referral hospital in South Australia and the impact of a targeted, locally developed educational intervention. Methods: We conducted a closed-loop retrospective audit of consecutive adult COVID-19 non-intensive care unit admissions to the General Medicine Unit over a six-month period (5 February–6 August 2024), totalling 126 episodes after exclusions. Antibiotic prescribing rates were compared before and after implementation of targeted education to admitting clinicians. This was delivered via guideline-focused presentations at unit meetings, emails and posters in key clinical areas detailing the consensus recommendation, and brief electronic reminder messages. Prescribing appropriateness was inferred from adherence to the consensus recommendation, which included predefined criteria relating to total leukocyte count, neutrophilia, and radiological findings. Statistical comparisons were performed using appropriate statistical tests for categorical and continuous variables. Results: Following the intervention, antibiotic prescribing decreased from 26% to 22% of admissions (p = 0.57), and prescribing among patients who did not meet the specified criteria fell from 16% to 6% (p = 0.30). The proportion of prescriptions meeting the consensus criteria increased from 62% to 80% (p = 0.43). Conclusions: Baseline antibiotic use was substantially lower than commonly published rates but still exceeded expected CABC prevalence. Targeted education and simple, locally adaptable guidance may support improved antimicrobial stewardship in COVID-19 admissions. Full article

Background: Anastomotic leak (AL) after esophagectomy remains a devastating complication. Indocyanine green (ICG) fluorescence angiography may mitigate this risk by enabling perfusion-guided anastomotic site selection. This study evaluates the feasibility of quantitative ICG angiography using the SPY-PHI QP^® system (Stryker AB, Malmö, Sweden) during gastric conduit reconstruction. Methods: Six patients undergoing esophagectomy (Ivor Lewis/McKeown) after neoadjuvant therapy were retrospectively identified. ICG angiography was performed intraoperatively, with perfusion at the gastric conduit quantified as a relative perfusion ratio (RPR) using the first duodenal segment as the reference (100%). Anastomotic sites were selected based on maximal RPR (threshold > 80%). Postoperative outcomes included AL incidence (radiological/clinical), complications (Clavien–Dindo), and 90-day mortality. Results: All patients (median age: 69 years) underwent successful perfusion assessment. Adenocarcinoma predominated (50%, 3/6), with most tumours at the gastroesophageal junction (Siewert II: 66%). Intraoperative RPR at anastomotic sites ranged from 80% to 100%. No anastomotic leaks occurred. Complications included Clavien–Dindo grade II (n = 3; respiratory infections) and grade IV (n = 2; reintubation). There was no 90-day mortality. Conclusions: Quantitative ICG angiography using the SPY-PHI QP^® system facilitated perfusion-guided anastomosis with no leaks observed. Standardising perfusion assessment based on an RPR threshold of >80% may enhance surgical safety, though larger studies are needed to validate these findings. Full article

Background: Malnutrition is common among older adults with cognitive impairment and contributes to frailty and poorer health outcomes. Many individuals with dementia require mealtime assistance, yet differences in caregiving practices across hospital and nursing home settings remain underexplored. Aim: The aim of this study was to compare eating encouragement practices, feeding skills, feeding difficulties, and nutritional status between family caregivers in hospitals and professional caregivers in nursing homes. Methods: A cross-sectional observational study was conducted between June 2020 and December 2023 in New South Wales, Australia. The study included 82 older adults (≥65 years) with cognitive impairment: 31 hospital patients supported by family caregivers and 51 nursing home residents supported by assistant nurses. Eating encouragement, feeding skills, and feeding difficulties were assessed using structured observation tools, and nutritional status was evaluated using the Mini Nutritional Assessment–Short Form (MNA-SF). Group differences were analysed using chi-square tests and independent t-tests (p < 0.05). Results: Family caregivers in hospitals demonstrated stronger relational and engagement-based practices, including consistent handwashing (χ² = 31.945, p < 0.001), encouraging self-feeding (χ² = 21.678, p < 0.001), verbal cueing (χ² = 12.083, p = 0.002), touch prompting (χ² = 51.817, p < 0.001), and sitting face to face (χ² = 38.697, p < 0.001). Nursing home caregivers showed more advanced technical skills, such as task simplification (χ² = 54.135, p < 0.001), mirroring (χ² = 78.456, p < 0.001), hand-over-hand guidance (χ² = 73.076, p < 0.001), mouth- and lip-opening techniques (both χ² = 81.000, p < 0.001), and stronger choking management (p < 0.001). Feeding difficulties also differed: refusal behaviours were more common in nursing homes, while distraction and oral–motor issues were more frequent in hospitals. Overall, nursing home residents had significantly poorer nutritional status (t = −12.592, p < 0.001). Conclusions: Family caregivers provide stronger relational support, whereas professional caregivers demonstrate superior technical competence. Integrating these complementary strengths may enhance mealtime care and reduce malnutrition among cognitively impaired older adults. Full article

This study examines Lean 4.0, defined as the integration of Lean soft practices (LSPs) and Industry 4.0 technologies (I4Ts), from a socio-technical systems perspective. While prior research has mainly linked Lean and I4Ts to operational and cost-based performance indicators, far less is known about how their human and technological elements interact as one socio-technical system during digital transformation. We investigate how LSPs and I4Ts combine to form social and technical subsystems, how their interaction reshapes work systems, and how these configurations relate to organisational performance. An inductive qualitative design was used. Fifteen managers and professionals with direct experience in continuous improvement and digital transformation completed an open-ended online questionnaire. Data were analysed using Braun and Clarke thematic analysis, guided by socio-technical systems theory and complemented by a cross-case synthesis. The findings identify four interrelated subsystems, social, technical, work, and outcomes, that co-evolve in Lean 4.0 initiatives. LSPs such as training, empowerment, and stakeholder involvement constitute a social system that enables the adoption and effective use of I4Ts in the technical system. When both subsystems are strong, their combined operation drives more extensive digital transformation of operational processes and customer facing activities, and in some cases business models, and is associated with broader improvements in efficiency, quality, customer satisfaction, employee engagement, and financial performance than medium or unbalanced configurations. The analysis also highlights recurrent integration challenges, including skill gaps, legacy system constraints, resistance to change, and data security concerns. Overall, the study conceptualises Lean 4.0 as an integrated socio-technical configuration and extends socio-technical systems theory by showing how LSPs mediate and amplify the value created by I4Ts, providing an empirically grounded framework and configuration-based insights for future testing. Full article

Background: Global declines in immunisation rates and a resurgence in measles pose a threat, even in countries like Australia that have achieved elimination status. National coverage in Australia is measured at static timepoints, so it is unclear at what age children received their vaccines. This may permit the emergence of immunity gaps, leaving children susceptible to measles between those reporting timepoints. Methods: A cross-sectional retrospective analysis was conducted using routinely collected data from the Australian Immunisation Register for children residing in Hunter New England Local Health District (HNELHD), New South Wales, born from 1 January 2015 to 1 June 2019 as a quality improvement initiative. Coverage, age at immunisation, and on-time immunisation were described by demographic, local geographic and age variables. Reverse survival analysis was conducted to determine the timing of achieving 95% MCV2 coverage. To ensure the cultural integrity of the research, an Aboriginal researcher co-led the design, analysis and interpretation of results. Results: The analysis included 53,390 children. Measles coverage exceeded the national and international target of 95% MCV2 coverage, with coverage in Aboriginal children surpassing national rates for all children. Pockets of low coverage were identified in several smaller geographic areas and subpopulations. Median age of MCV1 receipt was 375 days (IQR: 369–390 days), and MCV2 was 560 days (IQR: 551–583 days). More recent birth cohorts had earlier immunisation. On-time immunisation rates were high, and most children receiving measles immunisation late were still immunised within six months of the schedule date. The 95% MCV2 coverage threshold was achieved at 1582 days of age. Conclusions: Robust measles immunisation coverage and timeliness were found in HNELHD, Australia. Timeliness data analysis is a useful adjunct to static coverage data in understanding immunisation protection. Improving immunisation data availability, accessibility, and timeliness offers potential to better inform targeted public health activity. Full article