Placement poverty has major implications for the future health and education workforce: a cross-sectional survey.

Objective'Placement poverty' refers to the financial burdens imposed upon students by the completion of mandatory professional placement. We aimed to identify the financial implications of mandatory professional placements on student wellbeing.MethodsA cross-sectional online survey (August 2023 to January 2024) completed during students' most recent professional placement in the final year of their degree.

Advantages of a novel pH measurement for soilless media.

Rhizosphere pH determines nutrient bioavailability, but this pH is difficult to measure. Standard pH tests require adding water to growth media. This dilutes hydrogen ion activity and increases pH.

Deep Active Inference and Scene Construction.

Adaptive agents must act in intrinsically uncertain environments with complex latent structure. Here, we elaborate a model of visual foraging-in a hierarchical context-wherein agents infer a higher-order visual pattern (a "scene") by sequentially sampling ambiguous cues. Inspired by previous models of scene construction-that cast perception and action as consequences of approximate Bayesian inference-we use active inference to simulate decisions of agents categorizing a scene in a hierarchically-structured setting.

Optogenetic activation of short neuropeptide F (sNPF) neurons induces sleep in Drosophila melanogaster.

Sleep abnormalities have widespread and costly public health consequences, yet we have only a rudimentary understanding of the events occurring at the cellular level in the brain that regulate sleep. Several key signaling molecules that regulate sleep across taxa come from the family of neuropeptide transmitters. For example, in Drosophila melanogaster, the neuropeptide Y (NPY)-related transmitter short neuropeptide F (sNPF) appears to promote sleep.