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Heart failure (HF), also known as congestive heart failure (CHF), is a syndrome caused by an impairment in the heart's ability to fill with and pump blood.. Although symptoms vary based on which side of the heart is affected, HF typically presents with shortness of breath, excessive fatigue, and bilateral leg swelling. [3]
Emmental cheese with eyes. Each slice will have holes of varying sizes and positions. In the Swiss cheese model, an organization's defenses against failure are modeled as a series of imperfect barriers, represented as slices of cheese, specifically Swiss cheese with holes known as "eyes", such as Emmental cheese.
The tip-of-the-tongue experience is a classic example of blocking, which is a failure to retrieve information that is available in memory even though you are trying to produce it. [2] The information you are trying to remember has been encoded and stored, and a cue is available that would usually trigger its recollection. [2]
In a similar vein, an industrial or domestic burner controller can fail, but must fail in a safe mode (i.e. turn combustion off when they detect faults). Famously, nuclear weapon systems that launch-on-command are fail-safe, because if the communications systems fail, launch cannot be commanded. Railway signaling is designed to be fail-safe.
The oldest financial institution in the world, Banca Monte dei Paschi di Siena, founded in 1472.. A financial institution, sometimes called a banking institution, is a business entity that provides service as an intermediary for different types of financial monetary transactions.
Exploded, broke up, and crashed off the coast of Long Island 30 minutes after taking off from New York bound for Paris due to a catastrophic central fuel tank explosion resulting in the forward fuselage section, which included the main flight deck first class and a portion of business class, separating and causing the remaining section to climb ...
A sudden fail-open fault can cause multiple secondary failures if it is fast and the circuit contains an inductance; this causes large voltage spikes, which may exceed 500 volts. A broken metallisation on a chip may thus cause secondary overvoltage damage. [1] Thermal runaway can cause sudden failures including melting, fire or explosions.
[17] Hard drives with S.M.A.R.T.-reported average temperatures below 27 °C (81 °F) had higher failure rates than hard drives with the highest reported average temperature of 50 °C (122 °F), failure rates at least twice as high as the optimum S.M.A.R.T.-reported temperature range of 36 °C (97 °F) to 47 °C (117 °F). [16]