Abstract We report an unusual regime of emittance self-compensation in electron bunch generated the blow-out mode by a radio-frequency photocathode gun. This is observed for strong space-charge field on cathode reaching around 30%–35% accelerating field. Simulations clearly show initial growth and subsequent projected divergent originating from effects of: (a) forces mirror charges cathode, (b)...

Figure 1. Intraoperative photo showing the displaced fracture fragment. DESCRIPTION A 55-year-old white man presented with double vision 2 days after low-velocity blunt force–isolated facial trauma. He complained of persistent vertical and horizontal double vision, particularly with inferior and lateral gaze. He had minimal dentition, but he believed that his teeth aligned normally. A computed ...

Airport security checkpoints might take a lesson from the nuclear pore complex (NPC), where, according to Dange et al., there are no long lines and no slowdown despite the hubbub around them. The group used single-molecule video microscopy, with a localization precision of about the width of a protein, to track single molecules of labeled, cargo-carrying receptors entering the NPC in vivo. They...