Search Results (1,546)

The Porous Line is a drawing inquiry that uses materials and processes to engage in a dialogue with a suburban ecosystem. I follow the physicist David Bohm’s proposal to use dialogue as a mode of engagement where habitual modes of thought are suspended, a form of non-judgmental curiosity. I reflect on how immersing a large roll of French imported paper in my everyday environs reveals the porousness between nature and culture. The binary separation of nature and culture has undergone significant criticism as we deal with the climate crisis. As a foundational medium within western art and thought, how can drawing communicate this growing ontological shift? The essay engages in dialogue with Yolngu art from Yirrkala as a guide on what an ecological art practice entails. Their commitment to work with what ‘country’ provides has resulted in innovative and thoughtful new works. In response to propositions seen in Yolngu artworks, this essay engages with place, materiality, and relationality through the process of merging line and ground, the fundamentals of drawing, physically and conceptually. I reflect on the challenges that need to be addressed within western ontologies to develop an ecological approach in drawing. Full article

Saline irrigation is a major constraint to crop production in newly reclaimed desert lands, even when pre-sowing soil salinity is low. This two-season field study evaluated whether plant growth-promoting rhizobacteria could improve barley performance under saline irrigation water with an electrical conductivity of 11.8 dS m⁻¹ in the El Moghra region, Egypt. The barley cultivar Giza 2000 was grown under five inoculation treatments: an uninoculated saline-irrigated control; a single inoculation with Azospirillum lipoferum; and combined inoculations with A. lipoferum and Bacillus coagulans, Bacillus circulans, or Enterobacter cloacae. Because freshwater was unavailable at the experimental site, treatment effects were evaluated relative to the saline-irrigated control. Across both growing seasons, single inoculation with A. lipoferum produced the most consistent improvements in growth, yield formation, nutrient accumulation, soil biological activity, and seed nutritional quality. The combined treatment of A. lipoferum and B. circulans was generally the second-most effective. Bacterial inoculation also improved adjustment to physiological stress, as indicated by greater proline accumulation, lower antioxidant enzyme activities, and enhanced expression of stress-related genes associated with proline biosynthesis and secondary metabolism. Overall, the results indicate that A. lipoferum applied alone was more effective than the tested combinations of bacteria under saline irrigation. These findings provide field-based evidence that inoculant performance depends on strain composition and that single-strain inoculation can be a promising strategy for improving barley production in reclaimed sandy soils irrigated with saline water. Full article

In underground engineering, the dynamic failure mechanisms of rock masses containing openings under impact loading are of vital importance. This study systematically investigates the effects of opening shape, size, and orientation on the dynamic behavior of red sandstone. Dynamic impact tests are first performed using a split Hopkinson pressure bar together with high-speed photography and digital image correlation for full-field strain and crack monitoring. A two-dimensional combined finite–discrete element (FDEM) model is then developed to reproduce the dynamic failure process. It is found that the opening size significantly affects the dynamic compressive strength, while the opening shape dictates crack initiation and propagation. Circular openings induce symmetric cracking, square openings cause corner-dominated cracks, and horseshoe-shaped openings produce asymmetric failure whose dominant side depends on the rotation angle. The FDEM model established in this study successfully reproduces the main crack paths and failure modes observed in experiments, which provides a powerful tool for the analysis of rock dynamic failure. Moreover, the results in this study also provide practical engineering guidance for the reinforcement and support measures for different opening shapes. Full article

This study investigates the population dynamics and seasonal reproductive patterns of Gambusia holbrooki, an invasive fish threatening biodiversity within arid springs of the Edgbaston Spring complex in Queensland, Australia. Using daily aging techniques, we uncover critical life history traits that inform targeted species management. Our findings reveal marked sex-specific mortality rates, with males exhibiting higher mortality than females, a pattern consistent with findings from Tasmania. Reproductive activity peaks were observed between September and November, but persisted throughout the year, excluding January and April of 2020, likely due to elevated water temperatures during these months. Growth modeling identified the power function as the best fit for describing G. holbrooki growth trajectories. These insights highlight the importance of seasonally informed control strategies to mitigate the ecological impact of this pest species. The study provides essential data to support conservation efforts and guide effective management of invasive fish in fragile arid spring ecosystems. Full article

Practice-oriented or practice-based research is growing in popularity in the social, built environment and health fields for its important role in driving transformative changes at policy, programme/service and practice levels. As planning is a practice with performative characteristics occurring in a socio-political-legal context, practice-oriented research has been utilised to inform and help shape change. However, to be truly effective, practice-oriented research must be connected to day-to-day practices. In this article, we present our experience of using a Community of Practice (CoP)—that brings together people with shared interests and professions—to exchange learning and experiences and to help create knowledge to advance professional practice. In our case, we established a Community of Practice of Planners (CoPP) to help translate stage one findings into tailored knowledge resources to open up a dialogue and raise awareness on Planning for Disability Equity and Inclusion. In this article, we describe the method of CoP, how it works, including our reflections and learnings. We suggest that CoP are an underutilised method in planning practice and research. We argue that the CoP approach should be in a researcher and planner’s toolbox for more transformative progress in equity and inclusion in planning. Full article

Testing harvested logs is a critical step in the wood products supply chain. Non-destructive evaluation (NDE) methods are essential for grading and sorting logs, especially given variations associated with tree age. In this study, plantation-grown Eucalyptus nitens from two age groups were sourced from two Tasmanian harvesting sites for NDE and comparison with destructive stiffness testing. The key finding is that the correlation between dynamic modulus of elasticity (DMOE) and static modulus of elasticity (MOE) weakens with increasing age, particularly at the whole-log level. For further analysis, the radial location of recovered small clear samples (from pith to bark) was examined. Core samples (near the pith) showed the strongest correlation between DMOE and static MOE (R² = 0.51), followed by middle (R² = 0.46) and outer samples (R² = 0.25). This study demonstrates that considering the radial location of recovered samples is a more effective approach for improving grading accuracy. Age is a key factor for initial segregation of logs before applying NDE for property analysis of both logs and recovered samples. Full article

Background: Sepsis is a time-critical condition requiring early recognition and intervention. Many emergency departments (EDs) have adopted clinical pathways to standardise sepsis care; however, the impact of these pathways on patient outcomes remains unclear. Methods: A systematic review and meta-analysis was conducted in November 2024 searching PubMed, Embase, and Scopus. Studies were included if they assessed the impact of a clinical pathway on adult or paediatric patients with sepsis presenting to the ED. Results: Thirty-three studies were included, of which the majority were retrospective cohort designs and were rated serious overall risk of bias. Pathway implementation was associated with faster time to antibiotics across all subgroups (135 min before vs. 93 min after; MD −43 min, p < 0.001). In-hospital mortality appeared reduced in the primary analysis (RD −2.4%, p = 0.032); however, this finding was fragile under sensitivity analysis and was not observed in prospective or randomised designs. The apparent reduction in hospital length of stay was driven by paediatric and low- and middle-income country studies and was non-significant when restricted to adult studies. ICU admission rate, ED length of stay, and time to IV fluid resuscitation were not significantly reduced. Conclusions: ED sepsis pathway implementation is associated with improved time to antibiotics across clinical settings and populations. Current evidence is insufficient to demonstrate a reduction in mortality; the apparent signal in retrospective studies is attributable to secular improvements in sepsis care and asymmetric patient identification rather than a true pathway effect. Future research should prioritise prospective controlled studies with standardised screening methods, time zero definitions and control of confounding variables. Full article

Automated warning messages for child sexual abuse material (CSAM) desistance are scalable, real-time digital interventions designed to interrupt user behaviors associated with the search for, access to, consumption, or distribution of CSAM by delivering salient prompts—such as pop-ups, overlays, embedded alerts, or chatbot interactions—when high-risk online actions are detected (e.g., the use of flagged search terms, attempts to access known URLs, or engagement with borderline exploitative content). Unlike traditional law enforcement responses that typically occur after an offence, these systems intervene at the point of risk, adopting a preventive rather than punitive approach grounded in situational crime prevention theory and behavioral science, particularly cognitive interruption, to reduce perceived anonymity, increase awareness of legal and moral consequences, reinforce social norms, and redirect users toward desistance or support services. When deployed credibly and ethically, automated warning messages function as a critical complement to conventional enforcement by enabling early, scalable intervention that promotes behavioral reflection, desistance, and harm reduction within digital environments. Full article

A triple active bridge (TAB) converter used for simultaneous fast charging of two dissimilar EVs can exhibit significant circulating power under asymmetric port voltages and power levels. This internal power exchange increases losses and current stress and limits the effectiveness of conventional magnetic design optimization. This paper develops a generalized five-variable phase-shift model of the TAB and formulates explicit zero-circulating-power conditions that characterize non-circulating operating points in asymmetric dual-EV charging. Based on this formulation, a decoupled control law is synthesized that assigns the five phase-shift variables to suppress circulating power while independently regulating the power delivered to each EV port over a wide operating range, without requiring specialized transformer or leakage-inductance design. Results from representative dynamic dual-EV charging scenarios demonstrate 15% reduction in RMS current stress compared with conventional phase-shift control. Full article

Heavy metals in the soil inhibit plant growth, which significantly reduce the crop yield and quality. Natural Resistance-Associated Macrophage Proteins (NRAMP) are widely distributed on the plasma and vacuolar membranes of plant roots, stems, and leaves. The NRAMP gene family plays a crucial role in modulating plant heavy-metal uptake, sequestration, distribution, and translocation, while the molecular evolution and mechanisms underlying these processes remain unclear. Here, we reviewed recent progress on plant NRAMP genes, focusing on their structural characteristics and functions in the absorption, transport, accumulation, and detoxification of various heavy metals. Furthermore, we performed an evolutionary analysis of NRAMP in green plants, indicating expansion and tandem duplication in ferns. In addition, their key amino acid sequences and secondary structures were highly conserved across plant species. The expression of diverse tissue showed that NRAMP genes displayed distinct spatial regulation in the leaves and roots. We also explored the underlying molecular mechanisms and regulatory pathways by which NRAMP genes influence heavy metal uptake. Therefore, by integrating structural conservation, molecular evolution, tissue- and single-cell expression patterns, ion-stress-responsive expression, regulatory pathways, and the Cd–Mn nutrient–toxin trade-off, this review provides a framework for identifying unresolved NRAMP functions and for guiding future strategies in low-heavy-metal crop breeding, metal homeostasis engineering, and phytoremediation. Full article

Sand grain size strongly influences the physical and hydraulic behaviour of sandy soils, particularly water retention, pore distribution, and water movement under unsaturated conditions. This study evaluated the effect of five sand grain-size classes, ranging from very coarse to very fine, on pore distribution, aeration, water retention, and unsaturated hydraulic conductivity. Quartz sand samples with different particle sizes were saturated and subjected to matric tensions ranging from 10 to 15,000 hPa. Very fine sand (0.053–0.106 mm) showed the highest field capacity (0.38 m³ m⁻³) and available water content (0.30 m³ m⁻³), which were associated with a predominance of pores between 0.2 and 3 μm in diameter. In contrast, coarser sand fractions were dominated by macropores (>50 μm) and exhibited lower water retention. Permanent wilting point values remained low and similar among grain-size classes (≈0.02 m³ m⁻³). Under unsaturated conditions (matric tensions > 100 hPa), very fine sand exhibited hydraulic conductivity values up to ten times greater than those of coarser fractions. Overall, decreasing sand particle size increased water retention and plant-available water while reducing macroporosity and aeration capacity. These findings demonstrate that sand grain-size distribution plays a major role in regulating water dynamics in sandy soils and may support the development of more efficient irrigation and soil management strategies to improve water conservation and plant water availability in drought-prone environments. Full article

As the population ages and new therapies become available, general practitioners will have a significant role in the early detection, diagnosis, and management of dementia. However, both in Australia and globally, dementia remains under-recognised and under-diagnosed in primary care. The aim of this study is to develop a complex intervention, informed by behaviour change theory, to improve rates of dementia diagnoses in Australian primary care. Co-design participants included GPs, general practice nurses, practice managers and reception staff. A program logic model was used to describe the essential activities and mechanisms of the intervention. Six behaviour changes—education, training, enablement, modelling, persuasion, and environmental restructuring—were identified to address the identified barriers to dementia diagnosis in primary care. The intervention comprises seven activities—peer-led online dementia education and training, geriatrician ‘drop-in’ online support sessions, quality improvement in dementia care sessions, stand-alone videos, auditing and benchmarking, a dementia risk alert tool and a set of dementia diagnosis and management decision-making resources. Using behaviour change theory can assist in the development of complex interventions aimed at changing clinical practice and may assist in their evaluation. Full article

The distribution and concentrations of gold and other trace elements in numerous pyrite-bearing ore samples from volcanic-hosted massive sulfide (VHMS) deposits were obtained using LA-ICPMS imaging techniques. Pyrite in VHMS deposits is characterized by low Co and Ni (generally less than 100 ppm Co and Ni, but rarely above 1000 ppm in either element). On the other hand, Cu, As, Ag, Au, Sb, Mn, Tl, and Pb are commonly elevated above background and appear to be deposited in multiple forms, including solid solution as well as nano- and micro-inclusions of other mineral phases. Gold is predominantly present in solid solution within the crystal lattice. Such trace element signatures in pyrite are indicative of moderate- to high-temperature hydrothermal fluids varying in pH from moderately to strongly acidic. Pyrite from VHMS-style mineralization is distinguishable from pyrite in other deposit types by its relatively low abundance of Co and Ni. For example, pyrite from IOCG-type mineralization is nearly always enriched in Co at or above the weight-percent level, with lower but still elevated concentrations of Ni. In addition, IOCG pyrites do not contain elements such as Sb, Tl, or Pb in solid solution. Pyrite from porphyry-style Cu-Au-Mo mineralization likewise contains higher average Co and Ni than VHMS pyrite and lacks solid solution deportment of Sb, Tl, Pb, and other associated elements. This study underscores the effectiveness of trace element imaging via LA-ICPMS for the discrimination of pyrite from different mineral systems and for detailed paragenetic information. Full article

This paper proposed a novel desiccant evaporative cooling system integrated with shallow geothermal energy with three different configurations. The first two configurations (I and II) employed shallow geothermal energy for precooling and post-cooling, respectively, while Configuration III utilised geothermal energy for both precooling and post-cooling. The performance of these systems was examined and compared to a benchmark system, a conventional solid desiccant M-cycle cooling system, under various operating conditions. Furthermore, a case study was conducted to evaluate the viability of these schemes under a hot and humid climate in Darwin, Australia. The results indicated that all three configurations outperformed the benchmark system regarding supply air conditions and required a lower regeneration temperature to achieve similar cooling performance. Configurations I and III could maintain the supply air humidity rate below 15 g/kg and contribute up to 30.46% of dehumidification performance through the condensation effect in humid conditions. Configuration III exhibited the highest energy efficiency, with a thermal COP up to 0.82 under different humidity levels, and this system also consumed 37.27% less water than the benchmark system. Full article

China is the world’s largest soybean consumer, yet persistently low domestic yields and weak economic returns limit supply. Current efforts mainly focus on technology, but the factors influencing yield and profitability under real farm conditions remain poorly understood. Here, we integrate 609 farmer surveys with machine learning and optimization techniques to identify the coupled biophysical and socioeconomic factors across China’s two major production regions, using Heihe and Jining as the representative cities in Northeast China and Huang-Huai-Hai Plain. We show that soybean performance is shaped by both biophysical and socioeconomic factors. Education consistently influences yield in both regions, while farm size plays a significant role in Jining. Despite similar yields (2.85 vs. 2.87 Mg ha⁻¹), the determinants differ: In Heihe, performance is mainly influenced by variety, pesticide, herbicide and cropping patterns, whereas in Jining it is driven by precipitation, mechanization, temperature and irrigation. Profitability differs markedly, with higher net returns in Jining (4640 CNY ha⁻¹) compared to Heihe (2030 CNY ha⁻¹), reflecting structural differences in prices and land rental costs. Optimization results suggest that coordinated management improvements could increase profits by 1142 to 1859 CNY ha⁻¹. Overall, the findings highlight that profitability, rather than yield alone, is the primary constraint shaping soybean systems, providing a data-driven framework for region-specific optimization and policy design. Full article