Effect of altered production and storage of dopamine on development and behavior in .

Introduction: The nematode, (), is an advantageous model for studying developmental toxicology due to its well-defined developmental stages and homology to humans. It has been established that across species, dopaminergic neurons are highly vulnerable to neurotoxicant exposure, resulting in developmental neuronal dysfunction and age-induced degeneration. , with genetic perturbations in dopamine system proteins, can provide insight into the mechanisms of dopaminergic neurotoxicants.

Correction: Microfluidic devices powered by integrated elasto-magnetic pumps.

Correction for 'Microfluidic devices powered by integrated elasto-magnetic pumps' by Jacob L. Binsley et al., Lab Chip, 2020, 20, 4285-4295, DOI: .

Microfluidic devices powered by integrated elasto-magnetic pumps.

We show how an asymmetric elasto-magnetic system provides a novel integrated pumping solution for lab-on-a-chip and point of care devices. This monolithic pumping solution, inspired by Purcell's 3-link swimmer, is integrated within a simple microfluidic device, bypassing the requirement of external connections. We experimentally prove that this system can provide tuneable fluid flow with a flow rate of up to 600 μL h-1.

Controlling collective rotational patterns of magnetic rotors.

Magnetic actuation is widely used in engineering specific forms of controlled motion in microfluidic applications. A challenge, however, is how to extract different desired responses from different components in the system using the same external magnetic drive. Using experiments, simulations, and theoretical arguments, we present emergent rotational patterns in an array of identical magnetic rotors under an uniform, oscillating magnetic field.

Head and eye movements in visual search using night vision goggles.

Background: Night-vision goggles (NVGs) provide only a restricted field of view and have other characteristics that may affect the head and eye movements used in visual search.

Methods: We measured head scan patterns, the magnitude and duration of gaze saccades, and fixation duration as subjects searched computer generated imagery either with or without NVGs. Subjects searched for either a large (6 degrees) target on a low-detail background (high conspicuity condition) or a small (2 degrees) target on a high-detail background (low conspicuity condition).