Search Articles

View query in Help articles search

Search Results (1 to 10 of 3884 Results)

Download search results: CSV END BibTex RIS


Optimizing and Testing an Individualized and Adaptive Physical Activity Digital Health Intervention: Protocol for a Control Optimization Trial Embedded Within a Randomized Controlled Trial

Optimizing and Testing an Individualized and Adaptive Physical Activity Digital Health Intervention: Protocol for a Control Optimization Trial Embedded Within a Randomized Controlled Trial

On each day of the closed-loop intervention, denoted by k, mixed-integer quadratic programming is used to make personalized intervention decisions by solving the optimization problem in equation 2 subject to the logical and categorical constraints presented in equation 3 and the following input and output constraints: ymin – Ψk + j ≤ yk + j ≤ ymax + Ψk + j, j=1,...p umin ≤ uk + i ≤ umax, i=0,1,...m-1 Δumin ≤ Δuk + i ≤ Δumax, i=0,1,...m-1 Ψk + J ≥ 0, j=1,...p Variations in the control strategies are implemented

Meelim Kim, Shadia Mansour-Assi, Mohamed El Mistiri, Junghwan Park, Sarasij Banerjee, Owais Khan, Steven De La Torre, Michael Higgins, Job Godino, Kevin Patrick, Camille Nebeker, Sonia Jain, Predrag Klasnja, Daniel E Rivera, Eric Hekler

JMIR Res Protoc 2025;14:e70599

Adoption of Personal Health Records in Dutch Hospitals and Private Medical Clinics: Longitudinal Study

Adoption of Personal Health Records in Dutch Hospitals and Private Medical Clinics: Longitudinal Study

These 3 phases were performed by one author (Dvd S) and checked by another author (AMW-J), both experienced in qualitative analysis. In the fourth phase “reducing data,” the relevant responses were summarized into short codes and sorted into themes, which were thoroughly discussed between 2 authors (Dvd S and AMW-J) up to consensus. Next, we reflected on the data to infer its meaning and implications to refine the themes and determine thematic saturation of the found themes (phase 5, inferring).

Doris van der Smissen, Christine Leenen-Brinkhuis, Kim M E Janssens, Petra J Porte, Marcel A L M van Assen, Anne Marie Weggelaar-Jansen

J Med Internet Res 2025;27:e71915