At approximately 8 30 AM I had finished enriched oxygen treatment in the hyperbaric chamber and the chamber automatically turned off as planned.
The moment was broadcast via Periscope on the phone of Democratic congressman Scott Peters, who was orchestrating a group of lawmakers to record the event and broadcast it after the cameras in the chamber were turned off.
Nocturnal measurements (nine plants per treatment) were carried out every 2 weeks on the same leaves prior to dawn with the chamber light turned off, incoming CO2 concentration set at 400 µmol mol−1 and the block temperature set to 18 °C.
If the rat removed its nose on a catch trial ('false alarm'), the light in the test chamber was turned off and the rat received a 4-s timeout.
For the second context (context B), the room lights were turned dim and the chamber houselight was turned off.
During the 30-minute session the laser would be activated (1 Hz: 0.5 s pulse duration, light intensity between 15 and 20 mW) each time the mouse entered the laser-paired side of the chamber, and would be turned off when the mouse crossed back into the non-stimulation side of the chamber.
On Tuesday afternoon, as the Senate broke for lunch, Manchin and Schumer huddled in the well of the Senate chamber, even as aides turned off the lights.
Total exposure time in the chamber was 30 min. After active aerosolization for 15 min, the nebulizer was then turned off, the chamber inlet and outlets were plugged, and the rats remained in the chamber for another 15 min to breathe the remaining aerosolized solution.
Twelve minutes after the beginning of the hyperactivity, the N2 was turned off, the chamber was opened, and pups quickly removed, resuscitated, and left in normal atmospheric conditions until they returned to their original pink color and were breathing regularly.
Cells were initially pulled into the flow chamber and the pump was turned off for ~1 min.
