Liquid breathing can not effectively protect the lung from biophysical forces associated with the gas ventilator. New application modes for PFC have been developed. Partial liquid ventilation (PLV) involves filling the lungs with a fluid. This fluid is perfluorocarbon, also called Liquivent or Perflubron. The liquid has some unique properties. It has a very low surface tension, similar to surfactant, a substance that is produced in the lungs to prevent the alveoli from collapsing and sticking together during exhalation. It also has a high density, oxygen readily diffuses through it, and it may have some anti-inflammatory properties. In PLV, the lungs are
Liquid Tension Experiment 2 whole band. For this song Petrucci used a seven-string guitar. A riff heard at 4:15 is very similar to the song "Race with Devil on Spanish Highway" by guitarist Al Di Meola, whom Petrucci has cited as an influence. A live version of "Acid Rain" later appeared on Dream Theater's 2001 album "Live Scenes from New York". In this version the bass part is played by John Myung of Dream Theater on a six-string bass. Liquid Tension Experiment 2 Liquid Tension Experiment 2 is the second and final studio album by instrumental rock/progressive metal supergroup Liquid Tension Experiment, released on