Publications by authors named "D A Christensen"

Background: Delivering adequate quality care remains a challenge in many low-and middle-income countries (LMICs), especially for people living with type 1 diabetes (T1D), requiring a complex treatment regimen. Digital health solutions, including electronic medical record (EMR) systems, have shown potential to improve delivery and quality of care but still require a successful implementation.

Objective: To analyze the adoption of a newly implemented EMR system in Rwanda from the perspectives of individuals with T1D, health care providers, and experts.

View Article and Find Full Text PDF

The symmetry breaking that is formed when oxide layers are combined epitaxially to form heterostructures has led to the emergence of new functionalities beyond those observed in the individual parent materials. SrTiO-based heterostructures have played a central role in expanding the range of functional properties arising at the heterointerface and elucidating their mechanistic origin. The heterostructure formed by the epitaxial combination of spinel γ-AlO and perovskite SrTiO constitutes a striking example with features distinct from perovskite/perovskite counterparts such as the archetypical LaAlO/SrTiO heterostructure.

View Article and Find Full Text PDF

Objective: In October 2018, the Government of Canada legalized cannabis for recreational use nationwide. The effects of legalization on cannabis use have been primarily assessed through cross-sectional surveys.

Method: In the present study, a two-wave longitudinal design was used to explore potential demographic, substance use and behavioral addiction, and mental health predictors of change in cannabis use status following legalization.

View Article and Find Full Text PDF

Mucosal secretory IgA (SIgA) produced by subepithelial plasma cells in the lamina propria is the major antigen-specific defense mechanism against mucosal infections. We investigated if a retinoic acid (RA)-containing adjuvant in parenteral immunization, can induce vaccine-specific SIgA in the jejunal lumen in a dose-dependent manner in neonatal pigs immunized with a Chlamydia hybrid antigen. To accurately quantify SIgA responses in mucosal secretions, an antigen-specific ELISA method with secondary detection of porcine secretory component rather than IgA was developed.

View Article and Find Full Text PDF

Background: Survival after transcatheter aortic valve replacement (TAVR) has markedly increased. Thus, other comorbidities will intersect patient trajectories and challenge follow-up.

Objectives: The aim of this study was to describe patient characteristics and hospitalizations at end of life to further improve the quality of life for patients undergoing TAVR.

View Article and Find Full Text PDF