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).
The newest type of heartburn medication to become available without a prescription is omeprazole (Prilosec). Prilosec belongs to a family of drugs called proton pump inhibitors or PPIs. This type of drug is often used when antacids or H2 blockers fail. PPIs block the secretion of acid from the stomach. Lansoprazole (Prevacid) and esomeprazole (Nexium 24HR) can be bought over the counter.