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).
There are three types of rate control medications. They are beta-blockers, calcium channel blockers, and cardiac glycosides. Beta-blockers âblockâ the effects of adrenaline on your heart. They make the AV Node in the heart less sensitive to the erratic electrical impulses that your afib is generating.