Measuring the cortical tracking of speech with optically-pumped magnetometers.

During continuous speech listening, brain activity tracks speech rhythmicity at frequencies matching with the repetition rate of phrases (0.2-1.5 Hz), words (2-4 Hz) and syllables (4-8 Hz).

Image-based electrode array tracking for epicardial electrophysiological mapping in minimally invasive arrhythmia surgery.

Purpose: Electrophysiological mapping is effective in realizing a precise minimally invasive arrhythmia surgery. Recently, an epicardial electrophysiological mapping system for minimally invasive arrhythmia surgery was reported. The system requires a small electrode array, a tracking system and a global mapping algorithm.

PilJ localizes to cell poles and is required for type IV pilus extension in Pseudomonas aeruginosa.

Twitching motility allows Pseudomonas aeruginosa to respond to stimuli by extending and retracting its type IV pili (TFP). PilJ is a protein necessary for this surface-associated twitching motility and bears high sequence identity with Escherichia coli methyl-accepting chemotaxis proteins (MCP). Here, we report that whereas wild-type P.