University of Alberta

Evidence for dromaeosaurid scavenging on Albertosaurus (Dinosauria: Tyrannosauridae)

Abstract Direct evidence of trophic interactions in the fossil record (e.g., feeding traces, stomach contents) are key to understanding predator–prey relationships between extinct species and reconstructing ancient ecosystems. Recently discovered associated cranial material of an...

Who should pay for energy transition costs? Political ideology and distributive fairness in Alberta

Public support for energy transition does not necessarily imply agreement over how its costs and benefits should be distributed. As governments accelerate the transition to low-carbon energy, political conflict increasingly centers not on whether the transition should occur, but...

Reporting of Sociodemographic and Equity-Related Factors in Emergency Department Pain Trials for Children: A Scoping Review

Context: Effective management of children’s acute pain in emergency departments (EDs) is essential, yet health disparities exist. The applicability of evidence to diverse pediatric populations depends on clear demographic reporting. The PROGRESS-Plus framework identifies social d...

Multivariate analysis identifies distinct latent components and highlights the contribution of motor cortex neurochemistry to clinical variance in amyotrophic lateral sclerosis

Abstract Amyotrophic lateral sclerosis (ALS) is marked by substantial clinical heterogeneity across motor and extramotor domains, yet how different neuroimaging modalities jointly relate to this heterogeneity remains poorly understood. Prior ALS neuroimaging studies have largely...

A Modified Simplified Local Density Model for Characterizing and Predicting High-Pressure Methane Adsorption in Deep Coal Seams

Abstract Methane, the primary component of coalbed methane (CBM), occurs predominantly in the adsorbed state in coal. Accurate characterization and prediction of methane adsorption under high-temperature and high-pressure conditions are therefore essential for evaluating deep CBM...

MAIA frailty subgroup analysis: long-term follow-up with daratumumab plus lenalidomide/dexamethasone in transplant-ineligible newly diagnosed myeloma

Abstract In MAIA (Daratumumab, lenalidomide, and dexamethasone versus lenalidomide and dexamethasone alone in newly diagnosed multiple myeloma), daratumumab plus lenalidomide/dexamethasone (D-Rd) improved progression-free survival (PFS) and overall survival (OS) versus Rd in tran...

Dose Optimization of Cefazolin for Pediatric Patients with Renal Impairment Using Physiologically Based Pharmacokinetic Modeling (PBPK) in GastroPlus

Background/Objectives: Cefazolin is a first-generation cephalosporin antibiotic widely used for the treatment and prophylaxis of bacterial infections in both adult and pediatric populations. It is predominantly eliminated unchanged by the kidneys. Impaired renal function can redu...

“The Land's Been Queer Longer Than the Colonizers Have Been Here. Hiy Hiy.” Impacts of Anti‐Queer and Trans Policies and Resistance Through Art, Queer Joy, and Worldmaking Among Youth

ABSTRACT This study explores how 2SLGBTQ+ youth in Alberta, Canada—the country's most Conservative province—mobilize queer joy as a form of resistance amid rising anti‐queer and anti‐trans policies under a settler colonial, cisheteropatriarchal regime. Drawing from youth‐produced...

Acid Leaching for Carbon Sequestration with Prospects for Critical Metal Recovery

Abstract Reducing carbon emissions and supplying critical metals for the green energy transition are essential to limiting global warming to below 1.5 °C. Here, we propose heap leaching ultramafic material with sulfuric acid followed by sequential precipitation for nickel recover...

A new albertosaurine from the Oldman Formation, Alberta, Canada, illuminates ambiguity between albertosaurine and tyrannosaurine characteristics

Tyrannosaurid species have often been considered to have high longevity and low diversity relative to contemporaneous megaherbivores. Recent chronospecies assertions around tyrannosaurid lineage evolution have reinforced this idea. An albertosaurine, Tromerosaurus solumons, from...

Assessing and Addressing Frailty in Candidates for Lung Transplantation: An ISHLT Consensus Statement.

The ISHLT Consensus document for the selection of lung transplant candidates recommends frailty assessment as part of a comprehensive candidacy evaluation. Missing from this and other recent consensus documents were practical recommendations on which frailty measures to consider...

Comparing Gas and Inhaled Pharmacologic Interventions During Ex Vivo Lung Perfusion: A Systematic Review.

Background: Ex vivo lung perfusion (EVLP) has expanded the use of donor lungs by enabling ex vivo assessment, preservation, and rehabilitation before transplantation. Despite these advances, ischemia-reperfusion injury, inflammatory activation, pulmonary edema, and impaired lung...

Code-MUE: Measuring Code LLMs’ Uncertainty through Execution-Based Semantic Interaction Graphs

As Code Large Language Models (LLMs) become central to modern software engineering, their inherent stochasticity poses significant real-world risks, where even minor errors can lead to severe functional, security, or safety consequences. Reliable automation, therefore, demands th...

Learning from the Test: Self-Referential Differential Testing for Deep RL Agents

Deep Reinforcement Learning (DRL) has achieved significant success in complex decision-making problems. As DRL systems are increasingly deployed in real-world applications, ensuring their quality and reliability is paramount. Current works primarily focus on detecting safety-crit...

CLOAK: Contrastive Guidance for Latent Diffusion-Based Data Obfuscation

Data obfuscation is a promising technique for mitigating attribute inference attacks by semi-trusted parties with access to time-series data emitted by sensors. Recent advances leverage conditional generative models together with adversarial training or mutual information-based r...

Hematologic Malignancy Prevalence in Hidradenitis Suppurativa: A Cross-Sectional Study

Background: Hidradenitis suppurativa (HS) is a chronic inflammatory skin disease associated with substantial comorbidity. Evidence regarding the co-occurrence of HS and recorded hematologic malignancy diagnoses in large, diverse electronic health record populations remains limite...

Dentists’ perceptions and system-level barriers to antimicrobial stewardship in dental care in Karachi, Pakistan: a qualitative study

Abstract Background Antimicrobial resistance (AMR) is a major global health threat, and dental practice is an important but frequently overlooked contributor to inappropriate antibiotic use. In Pakistan, antimicrobial stewardship (AMS) in dentistry remains nascent, and dentists’...

ARMA-Design: Optimal Treatment Allocation Strategies for A/B Testing in Partially Observable Experiments

Online experiments are frequently employed in technological companies to evaluate the performance of a newly developed policy, product, or treatment relative to a baseline control. In many applications, the experimental units receive a sequence of treatments over time. To handle...

Mate choice copying in non-human animals: An update of two meta-analyses

Mate choice copying, the use of social information from others' mating decisions, is a taxonomically widespread form of social learning that can shape sexual selection. Two meta-analyses concluded that social information has a moderate positive effect on mate choice, but both res...

Fatal Cannabis-Associated Cardiovascular Toxicity Following High-Potency Cannabis Use

Cannabis has been associated with acute cardiovascular complications, including ventricular arrhythmias and myocardial infarction, particularly in otherwise healthy young adults. We report the death of a 28-year-old man who suffered from witnessed ventricular fibrillation while s...