Controlling the extrudate swell in melt extrusion additive manufacturing of 3D scaffolds: a designed experiment.

Tissue engineering using three-dimensional porous scaffolds has shown promise for the restoration of normal function in injured and diseased tissues and organs. Rigorous control over scaffold architecture in melt extrusion additive manufacturing is highly restricted mainly due to pronounced variations in the deposited strand diameter upon any variations in process conditions and polymer viscoelasticity. We have designed an I-optimal, split-plot experiment to study the extrudate swell in melt extrusion additive manufacturing and to control the scaffold architecture.

Parenting skills and parent readiness for treatment are associated with child disruptive behavior and parent participation in treatment.

Objective: Parent management training programs for parents of children with disruptive behaviors are efficacious treatments; however, in order to maximize efficiency it is necessary to develop approaches to understand which parents are most likely to participate in treatment. Accordingly, the present study used a person-centered methodology to determine clinically relevant parenting profiles that capture the breadth of parents' readiness to engage in parenting treatment, and their self-reported parenting skills. Further, identified profiles were compared on the severity of children's behavior problems and used to predict participation in parent management training.