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Historical references to survival cover aspects ranging from individual survival to that of empires, civilization, [3] and of the human race as a whole. The concept is also applied to non-living and non-physical things. In engineering, the term can be used to mean "the continued ability of the system to perform the desired function". [4]
Herbert Spencer coined the phrase "survival of the fittest". "Survival of the fittest" [1] is a phrase that originated from Darwinian evolutionary theory as a way of describing the mechanism of natural selection. The biological concept of fitness is defined as reproductive success. In Darwinian terms, the phrase is best understood as "survival ...
Survival, Evasion, Resistance, and Escape (SERE) is a training concept originally developed by the British during World War II. It is best known by its military acronym and prepares a range of Western forces to survive when evading or being captured.
Survival analysis is a branch of statistics for analyzing the expected duration of time until one ... and the expected future lifetime is called the mean residual ...
Survival rate is a part of survival analysis.It is the proportion of people in a study or treatment group still alive at a given period of time after diagnosis. It is a method of describing prognosis in certain disease conditions, and can be used for the assessment of standards of therapy.
Five-year survival rates can be used to compare the effectiveness of treatments. Use of five-year survival statistics is more useful in aggressive diseases that have a shorter life expectancy following diagnosis, such as lung cancer, and less useful in cases with a long life expectancy, such as prostate cancer.
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Survival skills are techniques used to sustain life in any type of natural environment or built environment. These techniques are meant to provide basic necessities for human life, including water, food, and shelter. Survival skills also support proper knowledge and interactions with animals and plants to promote the sustaining of life over time.