Segment, Compare, and Learn: Creating Movement Libraries of Complex Task for Learning from Demonstration.

Motion primitives are a highly useful and widely employed tool in the field of Learning from Demonstration (LfD). However, obtaining a large number of motion primitives can be a tedious process, as they typically need to be generated individually for each task to be learned. To address this challenge, this work presents an algorithm for acquiring robotic skills through automatic and unsupervised segmentation.

The effect of instructional therapeutic play on acceptance behavior of nasal lavage in hospitalized children.

Purpose: To evaluate the effect of instructional therapeutic play on acceptance of nasal lavage in children hospitalized for respiratory conditions.

Design And Methods: This quasi-experimental study was conducted at a teaching hospital. For the therapeutic play session, disposable gloves filled with compressed air and designed to resemble a human face, syringes, and saline solution ampoules were used.

Climate and ecology predict latitudinal trends in sexual selection inferred from avian mating systems.

Sexual selection, one of the central pillars of evolutionary theory, has powerful effects on organismal morphology, behaviour, and population dynamics. However, current knowledge about geographical variation in this evolutionary mechanism and its underlying drivers remains highly incomplete, in part because standardised data on the strength of sexual selection is sparse even for well-studied organisms. Here, we use information on mating systems-including the incidence of polygamy and extra-pair paternity-to estimate the intensity of sexual selection in 10,671 (>99.