Microstructural Origins of the Corrosion Resistance of a Mg-Y-Nd-Zr Alloy Processed by Powder Bed Fusion - Laser Beam.

Magnesium alloys are biocompatible, biodegradable and have the ability to promote bone ingrowth, making them ideal candidate materials for replacing auto- and allografts in future treatments of large bone defects. Powder bed fusion-laser beam (PBF-LB) additive manufacturing of these alloys would further allow for the production of complex structures, optimized for bone grafting. However, the corrosion rates of structures processed by PBF-LB remain too high.

An Enhanced Understanding of the Powder Bed Fusion-Laser Beam Processing of Mg-Y-Nd-Zr (WE43) Alloy through Thermodynamic Modeling and Experimental Characterization.

Powder Bed Fusion-Laser Beam (PBF-LB) processing of magnesium (Mg) alloys is gaining increasing attention due to the possibility of producing complex biodegradable implants for improved healing of large bone defects. However, the understanding of the correlation between the PBF-LB process parameters and the microstructure formed in Mg alloys remains limited. Thus, the purpose of this study was to enhance the understanding of the effect of the PBF-LB process parameters on the microstructure of Mg alloys by investigating the applicability of computational thermodynamic modelling and verifying the results experimentally.

Release of Side-Chain Fluorinated Polymer-Containing Microplastic Fibers from Functional Textiles During Washing and First Estimates of Perfluoroalkyl Acid Emissions.

The quantity and composition of fibers released from functional textiles during accelerated washing were investigated using the GyroWash method. Two fabrics [polyamide (PA) and polyester/cotton (PES/CO)] were selected and coated with perfluorohexane-based side-chain fluorinated polymers. Fibers released during washing ranged from ∼10 to 500 μ with a similar distribution for the two textile types.

Impact of a formal breastfeeding education program.

Purpose: To investigate whether implementation of a formal breastfeeding education program including a breastfeeding protocol, a resource guide, and educational presentations would have an impact on knowledge, comfort level, and attitudes toward breastfeeding among healthcare providers, and on amount of exclusive breastfeeding at our hospital.

Design And Methods: Quasi-experimental study that included a survey to obtain a preintervention baseline measurement and a postintervention measurement 6 months after the implementation of the formal breastfeeding education program. The sample was obstetricians, pediatricians, and nurses who interact with breastfeeding mothers at our hospital.