Network protocols that use aggressive retransmissions to compensate for packet loss due to congestion can increase congestion, even after the initial load has been reduced to a level that would not normally have induced network congestion. Such networks exhibit two stable states under the same level of load.
Beta blocker. Beta blocker, also written Î²-blocker, is a class of medications that are particularly used to manage cardiac arrhythmias, and to protect the heart from a second heart attack (myocardial infarction) after a first heart attack (secondary prevention).
Medications. A variety of local anesthetics may be used for the nerve block. The most common include lidocaine, ropivacaine, bupivacaine, and mepivacaine. The type of medication used, the concentration, the volume administered, and the location of the block will affect the onset and duration.