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Cause, also known as etiology (/ iː t i ˈ ɒ l ə dʒ i /) and aetiology, is the reason or origination of something. [ 1 ] The word etiology is derived from the Greek αἰτιολογία , aitiologia , "giving a reason for" ( αἰτία , aitia , "cause"; and -λογία , -logia ).
Etiology (/ ˌ iː t i ˈ ɒ l ə dʒ i /; alternatively spelled aetiology or ætiology) is the study of causation or origination. The word is derived from the Greek word αἰτιολογία ( aitiología ), meaning "giving a reason for" (from αἰτία ( aitía ) 'cause' and -λογία ( -logía ) 'study of'). [ 1 ]
For example, if asking why a table is such and such, an explanation in terms of the four causes would sound like this: This table is solid and brown because it is made of wood (matter); it does not collapse because it has four legs of equal length (form); it is as it is because a carpenter made it, starting from a tree (agent); it has these ...
Causal inference is the process of determining the independent, actual effect of a particular phenomenon that is a component of a larger system. The main difference between causal inference and inference of association is that causal inference analyzes the response of an effect variable when a cause of the effect variable is changed.
What causes earthquakes? Earthquakes occur when the plates that make up the Earth's crust move around. These plates, called tectonic plates, can push against each other.
Advances in medical science improve the understanding of causes of diseases and the classification of diseases; thus, regarding any particular condition or disease, as more root causes are discovered and as events that seemed spontaneous have their origins revealed, the percentage of cases designated as idiopathic will decrease.
For example, certain cancers arise from dysfunction of the immune system (skin tumors and lymphoma after a renal transplant, which requires immunosuppression), Streptococcus pneumoniae is spread through contact with respiratory secretions, such as saliva, mucus, or cough droplets from an infected person and colonizes the upper respiratory tract ...
The examples and perspective in this article deal primarily with the United States and do not represent a worldwide view of the subject. You may improve this article, discuss the issue on the talk page, or create a new article, as appropriate. (May 2014) (Learn how and when to remove this message)