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  2. Entropy - Wikipedia

    en.wikipedia.org/wiki/Entropy

    The statistical definition was developed by Ludwig Boltzmann in the 1870s by analyzing the statistical behavior of the microscopic components of the system. Boltzmann showed that this definition of entropy was equivalent to the thermodynamic entropy to within a constant factor—known as the Boltzmann constant. In short, the thermodynamic ...

  3. Adverse event - Wikipedia

    en.wikipedia.org/wiki/Adverse_event

    Adverse events categorized as "serious" (results in death, illness requiring hospitalization, events deemed life-threatening, results in persistent or significant incapacity, a congenital anomaly, birth defect or medically important condition) must be reported to the regulatory authorities immediately, whereas non-serious adverse events are ...

  4. Economics - Wikipedia

    en.wikipedia.org/wiki/Economics

    Robbins' definition eventually became widely accepted by mainstream economists, and found its way into current textbooks. [69] Although far from unanimous, most mainstream economists would accept some version of Robbins' definition, even though many have raised serious objections to the scope and method of economics, emanating from that definition.

  5. Sine and cosine - Wikipedia

    en.wikipedia.org/wiki/Sine_and_cosine

    In mathematics, sine and cosine are trigonometric functions of an angle.The sine and cosine of an acute angle are defined in the context of a right triangle: for the specified angle, its sine is the ratio of the length of the side that is opposite that angle to the length of the longest side of the triangle (the hypotenuse), and the cosine is the ratio of the length of the adjacent leg to that ...

  6. Hypernymy and hyponymy - Wikipedia

    en.wikipedia.org/wiki/Hypernymy_and_hyponymy

    If the hypernym Z consists of hyponyms X and Y, then X and Y are identified as co-hyponyms (cohyponyms), also known as coordinate terms. Co-hyponyms are labelled as such when separate hyponyms share the same hypernym but are not hyponyms of one another, unless they happen to be synonymous. [7]

  7. Plot (narrative) - Wikipedia

    en.wikipedia.org/wiki/Plot_(narrative)

    Plot is the cause‐and‐effect sequence of main events in a story. [1] Story events are numbered chronologically while red plot events are a subset connected logically by "so".

  8. Synonym (taxonomy) - Wikipedia

    en.wikipedia.org/wiki/Synonym_(taxonomy)

    To the general user of scientific names, in fields such as agriculture, horticulture, ecology, general science, etc., a synonym is a name that was previously used as the correct scientific name (in handbooks and similar sources) but which has been displaced by another scientific name, which is now regarded as correct.

  9. Proportional reasoning - Wikipedia

    en.wikipedia.org/wiki/Proportional_reasoning

    In Piaget's model of intellectual development, the fourth and final stage is the formal operational stage.In the classic book "The Growth of Logical Thinking from Childhood to Adolescence" by Jean Piaget and Bärbel Inhelder formal operational reasoning takes many forms, including propositional reasoning, deductive logic, separation and control of variables, combinatorial reasoning, and ...