Industrial standards define safety requirements for Human-Robot Collaboration (HRC) in industrial manufacturing. The standards particularly require real-time monitoring and securing of the minimum protective distance between a robot and an operator. In this work, we propose a depth-sensor based model for workspace monitoring and an interactive Augmented Reality (AR) User Interface (UI) for safe HRC. The AR UI is implemented on two different hardware: a projector-mirror setup and a wearable AR gear (HoloLens). We experiment the workspace model and UIs for a realistic diesel motor assembly task. The AR-based interactive UIs provide 21-24% and 57-64% reduction in the task completion and robot idle time, respectively, as compared to a baseline without interaction and workspace sharing. However, subjective evaluations reveal that HoloLens based AR is not yet suitable for industrial manufacturing while the projector-mirror setup shows clear improvements in safety and work ergonomics.

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To facilitate optimal growth of newborns, many countries have developed infant feeding recommendations, usually suggesting 4–6 mo of exclusive breastfeeding and then the gradual introduction of complementary foods. We prospectively studied the changes in infant diets and predictors of adherence to national infant feeding recommendations in a cohort of 720 newborn babies in rural Malawi, Sub‐Saharan Africa. Monthly interviews of the main guardians indicated that breastfeeding was universal for 18 mo. As most babies were given water or other supplemental foods soon after birth, the exclusive breastfeeding rates were only 19%, 8%, 2% and 0% at ages 1, 2, 3 and 4 mo, respectively. Complementary foods and family foods were introduced at median ages of 2.5 and 6.3 mo, i.e. much earlier than recommended. Better adherence to recommendations was associated with smaller number of children in the family, increased maternal education and some other socio‐economic or environmental variables. Conclusion: Exclusive breastfeeding is uncommon and complementary foods were introduced early to newborns among these rural families. Education and family planning may improve adherence to infant feeding recommendations and reduce the incidence of early childhood malnutrition in Malawi.

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