Dalhousie University

Disproofs of two conjectures concerning nondeficient numbers

Abstract A positive integer n is said to be nondeficient if σ ( n ) ≥ 2 n $\sigma (n) \geq 2n$ sigma left parenthesis n right parenthesis greater than or equals 2 n . Letting the positive divisors of an integer n > 1 $n> 1$ n greater than 1 be written as 1 = d 0 < d 1 < ⋯ < d k <...

Improving Voice Outcomes After Transoral Laser Surgery for Early Glottic Cancer: A Systematic Review

OBJECTIVE: To determine which intraoperative and postoperative interventions improve voice outcomes following transoral laser microsurgery (TLM) for early-stage glottic squamous cell carcinoma (T1-T2). DATA SOURCES: English literature was searched on PubMed, OVID Medline, CINAHL,...

A Nickel Pre-Catalyst for the O -Arylation of Primary, Secondary, and Tertiary Alcohols with (Hetero)aryl Chlorides

Abstract While base metal-catalyzed cross-couplings of alcohols and (hetero)aryl chlorides have emerged over the past decade, the development of a single pre-catalyst capable of promoting such transformations spanning all of primary, secondary, and tertiary (aliphatic) alcohols r...

Application to Dalhousie University September 2026 : A Quick Note About Information System Classifications

We have started an Application into The Dalhousie University English Program. We notice for the first time a very intelligent information system. Some documents that we did save in our Google Drive Account [but not published elsewhere*] have contributive value in the system. As f...

Glucosinolate- and Sulforaphane-Enriched Broccoli Extract as a Potential Dual-Action Antioxidant and Elastase Inhibitor

Broccoli (Brassica oleracea var. italica) is a widely cultivated cruciferous vegetable recognized for its rich content of bioactive phytochemicals with documented health-promoting properties. Fresh broccoli florets represent a rich yet underutilized source of bioactive phytochemi...

Ethical guidance for randomized controlled trials of donor interventions in deceased organ donation: a scoping review of international guidelines, consensus statements, and expert recommendations

Deceased donor interventions are nontherapeutic interventions to improve the likelihood of successful donation and transplant outcomes. Randomized controlled trials (RCTs) could strengthen the evidence base for donor interventions, but such trials face difficult ethical challenge...

Bernstein-smoothed estimation and bootstrap inference for the lower-tail Spearman's rho curve

This paper studies a Bernstein-smoothed plug-in estimator for the lower-tail Spearman's rho curve, a rank-based measure of local concordance defined through a normalized copula integral over the lower-left square [0,p]2. The estimator applies the lower-tail Spearman functional to...

Ultrafast Mechanochemical Synthesis of Plasmonic Transition Metal Nitride Nanoparticles

ABSTRACT Refractory plasmonic materials, such as transition metal nitrides and carbides have shown the potential to replace more expensive or oxidatively and thermally unstable materials composed of gold, silver, aluminum, and copper. The synthesis of transition metal nitride nan...

An Enquiry on the Ethics of One Medicine

One Medicine is not One Health. Although both concepts connect animal and human health, One Health has arguably become a frame for public health. This paper argues that One Medicine uniquely centres on animal and human patients and speaks to the equal interdependence of their hea...

Disability in pediatric inflammatory bowel diseases: A systematic review and a single center experience

OBJECTIVES: Toward development of a pediatric IBD disability index (PIDI), we aimed to review the literature on disability in pediatric inflammatory bowel disease (PIBD) and to estimate disability rates in a pediatric inception cohort. METHODS: A systematic review identified stud...

Negotiating consent, sexualized substance use, and digital platforms among two-spirit, gay, bisexual, trans, and queer men: Perceptions of Canadian service providers

The interplay of digital platforms and sexualized substance use has reshaped Two-Spirit, gay, bisexual, trans, and queer (2SGBTQ) men’s sociality and wellbeing. 2SGBTQ men use digital platforms and sexualized substances at unprecedented rates. The overall aim of this research was...

Enhanced Photoelectrochemical Performance for Hydrogen Production through Shell Layer Engineering and Spin Modulation Based on Cu−ZnInSe/ZnSeS Quantum Dots

Abstract Colloidal quantum dots (QDs) based on heavy-metal-free chalcogenides are promising light harvesters for efficient photoelectrochemical (PEC) solar energy conversion technology. However, overcoming charge-carrier recombination and optimizing charge-transfer kinetics at he...

The genome sequences of the diplonemid protist Diplonema japonicum YPF1604 and its bacterial endosymbionts Ca. Cytomitobacter primus and Ca. Nesciobacter abundans

We present a genome assembly of the diplonemid Diplonema japonicum YPF1604 (Discoba; Euglenozoa; Diplonemea; Diplonemidae). The genome sequence is 62.30 megabases in span. Most of the assembly is scaffolded into 118 chromosomal pseudomolecules. The multipartite mitochondrial geno...

Impact of post‐chemotherapy classification on outcomes in stage III and IV unilateral favorable histology Wilms tumor: Pooled data from Children’s Oncology Group AREN0532, AREN0533, and AREN03B2 studies

Abstract Background Improvements in therapy for patients with favorable histology Wilms tumor (FHWT) have relied on refinement of risk stratification for therapeutic assignment through identification of favorable and unfavorable prognostic factors. Although well established in In...

Redesigning 9-1-1 Paramedic Pathways: Evaluation of the IMPACC Model of Care

OBJECTIVES Paramedic services remain organized around rapid response, time-sensitive events, and hospital conveyance despite increasing 9-1-1 use for lower-acuity and undifferentiated presentations. There is a need to improve the alignment of paramedic services for patients seeki...

Proximity biotinylation at the host-Shigella interface reveals UFMylation as an antibacterial pathway

Abstract Host cells contest invasion by intracellular bacterial pathogens with multiple strategies that recognise and/or damage the bacterial surface. To identify host defence factors targeted to intracellular bacteria, we developed a proximity biotinylation approach coupled to q...

An integrated decision framework for optimizing poultry manure-to-energy systems within a circular bioeconomy under cold-climate conditions

Poultry manure represents an abundant biomass resource with significant potential for renewable energy production; however, identifying the optimal energy recovery pathway remains challenging because of variations in feedstock characteristics, conversion technologies, and climati...

A Crowd-Based Framework of Opportunity Recognition and Development

Abstract The ability to recognize or create new opportunities is one of the key prerequisites for a novice entrepreneur to engage in the new venture creation process. Despite the existence in the literature of multiple theoretical frameworks for opportunity recognition or creatio...

Interventions to increase involvement of primary care clinicians in providing palliative care: A scoping review

Background: It is recognized that primary care clinicians have a critical role in ensuring access to palliative care in health systems. When primary palliative care has been examined at the system level, provision is highly variable, making the study of best practices challenging...

Braving technological turbulence: generative artificial intelligence can build digital resilience in human-centric supply chains

Purpose Human-centric supply chains (HCSCs) are increasingly vital as firms face growing disruptions while balancing efficiency with workforce well-being and collaboration. This study examines how generative artificial intelligence (GenAI) influences HCSC performance under techno...