Carleton University

Comparative Thermal Performance of 24 Lattice Topologies Under Low-Speed Mixed Convection Using Interface Heat Transfer Metrics

This study presents a computational comparison of 24 lattice topologies over their geometrically feasible relative density ranges. Conjugate heat transfer simulations were performed in ANSYS Fluent 2024 R2 using 10 mm unit cells, inlet air at 300 K and 0.05 m/s, a constant base t...

De-escalation training across crisis-response sectors: a scoping review protocol

There is growing concern about violent or harmful encounters between crisis-intervention professionals and practitioners and individuals experiencing acute mental health crises, including those presenting with severe behavioural disturbances related to mental health concerns and/...

Sex-specific toxicological observations following 28-day oral gavage exposure to spherical and milled polystyrene nano- and microplastic particles in mice

Abstract Background With the rise in global plastic production, microplastics are an emerging environmental pollutant due to their ubiquitous presence in the environment. Human exposure and the impact of microplastics on human health warrants further research. Recent studies have...

Matrix‐Activated Aptamer Sensors for Human Serum Analysis

ABSTRACT Owing to their ease of operation, solution‐phase fluorescent sensors hold a crucial position among aptamer‐based detection tools. However, their performance is regularly compromised when exposed to increasing levels of blood fluids, such as human serum, which limits thei...

Matrix‐Activated Aptamer Sensors for Human Serum Analysis

ABSTRACT Owing to their ease of operation, solution‐phase fluorescent sensors hold a crucial position among aptamer‐based detection tools. However, their performance is regularly compromised when exposed to increasing levels of blood fluids, such as human serum, which limits thei...

Beyond Disorder: Stigma and Identity Across the Substance Use Health Spectrum in a Public Health Framework

BACKGROUND: Despite the widespread prevalence and health impacts of substance use (including alcohol), policies and services remain anchored in diagnostic criteria, overlooking people whose substance use does not fit clinical categories. This structural emphasis on meeting diagno...

Diverse microbial metal resistance and novel metal cycling organisms in copper/nickel mine tailings

Abstract Mine tailings contribute to environmental heavy metal contamination through the formation of acid mine drainage (AMD). Microbially-mediated processes such as iron and sulfur redox cycling influence metal mobility. Here, we applied an integrated metagenomic and metaproteo...

Approaching an unknown communication system by latent space exploration and causal inference

Abstract We propose a methodology for discovering meaningful properties in data without ground truth by combining manipulation of the latent variables of generative models to extreme values with causal inference in an approach we call causal disentanglement with extreme values (C...

Chemosymbiotic trophic strategy in an Ediacaran tubular animal

Chemosymbiosis may have been a key driver of early animal evolution and diversification. Yet evidence for animal–microbe nutritional partnerships in the fossil record of early metazoans remains scarce, largely owing to the limited availability of robust geochemical proxies and su...

Long-time behaviour of sphalerons in ϕ 4 models with a false vacuum

Abstract Evolution of sphalerons in a class of quartic Klein–Gordon models are studied under a growing perturbation. Sphalerons are unstable lump-like solutions that arise from a saddle point between true and false vacua in the energy functional. Numerical simulations are present...

Applying the commercial determinants of health framework to understand how digital platforms influence child and youth wellbeing

The influence of social media on youth mental health has been under debate in scientific communities over the last several years. In this perspective paper, we suggest that there is a need to shift focus away from finding ways to ascertain causal connections at the global scale t...

Nonlinear OrderSeparation in Two-Dimensional ElectronicSpectroscopy Quantifies Properties of Higher-Excited States

Abstract Two-dimensional (2D) spectroscopy combines high temporal and spectral resolution, allowing the observation of ultrafast energy transfer and the separation of homogeneous and inhomogeneous broadening. Typically, 2D spectroscopy is dominated by the lowest-order nonlinear s...

Understanding funding-related bias in gambling research: insights from unhealthy commodities industries and medical/pharmaceutical research – a scoping review

Despite the risk of funding-related bias (RoFRB) introduced by industry funding in gambling research, empirical investigations remain limited. To inform understanding of RoFRB in gambling research, this scoping review synthesized 52 peer-reviewed studies (2019–2024) spanning gamb...

Material imaginaries of the new iron curtain

The “social imaginary” has been critiqued for its overly deterministic qualities and resemblance to concepts of culture. Our article interrogates the materiality of the indeterminate at a time of heightened global uncertainty. Furthering a rapid response, material methodology in...

Experimental investigation of cross-laminated timber panels subjected to near-field blast loads

Research on the performance of structural timber elements subjected to near-field blast loads is lacking, with no known comprehensive experimental studies available to inform design standards and hazard mitigation strategies. This paper presents the results of an experimental tes...

ASector-Coupling Model to Evaluate the Role of Hydrogenin Low-Carbon Trucking

Abstract The global energy system must deeply decarbonize as soon as possible to avert the worst consequences of climate change, including the transportation sector, which accounts for 23% of global emissions. Several technological options have been proposed to decarbonize diesel...

“Oh my gosh, you’re too young to be sick!”: Unpacking the consequences of workplace mistreatment for young adults with disabilities.

Despite comprising a significant percentage of the workforce and being susceptible to mistreatment, young adults with disabilities have not been widely focused on in the workplace mistreatment literature. In this study, we take an intersectional approach as we examine the specifi...

The value of electronic tagging and tracking studies for understanding fish–hypoxia interactions

Abstract Objective Hypoxia (i.e., low dissolved oxygen availability) is a natural phenomenon but can also be induced by human activities (e.g., nutrient enrichment from runoff). Given that dissolved oxygen is essential for aquatic life, periods of hypoxia tend to have negative co...

65 TOPS optoelectronic multi-core computing unlocking multi-feature fusion enhancement

The rapid progress of artificial intelligence demands scalable, energy-efficient hardware with massive parallelism and high throughput. Although optical computing offers a promising post-Moore solution, current implementations face speed limitations and multi-core integration cha...