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Under HTTP 1.0, connections should always be closed by the server after sending the response. [1]Since at least late 1995, [2] developers of popular products (browsers, web servers, etc.) using HTTP/1.0, started to add an unofficial extension (to the protocol) named "keep-alive" in order to allow the reuse of a connection for multiple requests/responses.
The Hypertext Transfer Protocol uses the keyword "Keep-Alive" in the "Connection" header to signal that the connection should be kept open for further messages (this is the default in HTTP 1.1, but in HTTP 1.0 the default was to use a new connection for each request/reply pair). [8] Despite the similar name, this function is entirely unrelated.
Maintenance of an organism is the collection of processes to stay alive, excluding production processes. The Dynamic Energy Budget theory delineates two classes . Somatic maintenance mainly comprises the turnover of structural mass (mainly proteins) and the maintenance of concentration gradients of metabolites across membranes (e.g., counteracting leakage).
Survivability denotes the ability of a ship and its on-board systems to remain functional and continue designated mission in a man-made hostile environment. [5] The naval vessels are designed to operate in a man-made hostile environment, and therefore the survivability is a vital feature required from them.
It is decided to separate his brain from his body and keep it alive, with neural implants connecting it to visual and audio input/output for the mission. But without a body, the brain becomes extremely powerful and megalomaniacal. Isolated brains also appear in The Wild Wild West. In the episode "The Night of the Druid's Blood", one of James ...
Whether these are considered alive has been a matter of debate; viruses lack characteristics of life such as cell membranes, metabolism and the ability to grow or respond to their environments. Viruses have been classed into "species" based on their genetics, but many aspects of such a classification remain controversial. [124]
Dolphins fight to keep faint playoff hopes alive vs. hapless Jets. ... said Aaron Rodgers will remain at quarterback despite a season that is way below the 10-time Pro Bowl player's high standards
Each of these variables is controlled by one or more regulators or homeostatic mechanisms, which together maintain life. Homeostasis is brought about by a natural resistance to change when already in optimal conditions, [2] and equilibrium is maintained by many regulatory mechanisms; it is thought to be the central motivation for all organic ...