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  2. Postpartum depression - Wikipedia

    en.wikipedia.org/wiki/Postpartum_depression

    Postpartum depression (PPD), also called perinatal depression, is a mood disorder which may be experienced by pregnant or postpartum individuals. [3] Symptoms include extreme sadness, low energy, anxiety, crying episodes, irritability, and changes in sleeping or eating patterns. [1]

  3. Sensitivity and specificity - Wikipedia

    en.wikipedia.org/wiki/Sensitivity_and_specificity

    Confidence intervals for sensitivity and specificity can be calculated, giving the range of values within which the correct value lies at a given confidence level (e.g., 95%). [ 26 ] Terminology in information retrieval

  4. Interquartile range - Wikipedia

    en.wikipedia.org/wiki/Interquartile_range

    Boxplot (with an interquartile range) and a probability density function (pdf) of a Normal N(0,σ 2) Population. In descriptive statistics, the interquartile range (IQR) is a measure of statistical dispersion, which is the spread of the data. [1] The IQR may also be called the midspread, middle 50%, fourth spread, or H‑spread.

  5. New Zealand English - Wikipedia

    en.wikipedia.org/wiki/New_Zealand_English

    The first dictionary with entries documenting New Zealand English was probably the Heinemann New Zealand Dictionary published in 1979. [8] Edited by Harry Orsman (1928–2002), it is a 1,337-page book with information relating to the usage and pronunciation of terms that were widely accepted throughout the English-speaking world, and those ...

  6. List of Chinese inventions - Wikipedia

    en.wikipedia.org/wiki/List_of_Chinese_inventions

    However, the earliest known book printed at regular size is the Diamond Sutra, made during the Tang dynasty (618–907), a 5.18 m (17.0 ft) long scroll, which bears the date AD 868. [16] Joseph Needham and Tsien Tsuen-hsuin write that the cutting and printing techniques used for the delicate calligraphy of the Diamond Sutra book are much more ...

  7. History of science - Wikipedia

    en.wikipedia.org/wiki/History_of_science

    Part of a series on Science General History Literature Method Philosophy Branches Formal Natural Physical Life Social Applied In society Communication Community Education Funding Policy Pseudoscience Scientist Science portal Outline Category Article indexes Glossaries The history of science covers the development of science from ancient times to the present. It encompasses all three major ...