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  1. The t -distribution plays a role in a number of widely used statistical analyses, including Student's t -test for assessing the statistical significance of the difference between two sample means, the construction of confidence intervals for the difference between two population means, and in linear regression analysis.

    • 0 for, ν, >, 1, {\displaystyle \nu >1}, , otherwise undefined
    • x, ∈, (, −, ∞, ∞, ), {\displaystyle x\in (-\infty ,\infty )}
    • ν, >, 0, {\displaystyle \nu >0}, degrees of freedom (real)
  2. British undergraduate degree classification. The British undergraduate degree classification system is a grading structure for undergraduate degrees or bachelor's degrees and integrated master's degrees in the United Kingdom. The system has been applied (sometimes with significant variations) in other countries and regions.

    • List of Metrics
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    • Further Reading


    Formally, if f is the function that corresponds to the number of citations for each publication, we compute the h-index as follows. First, we order the values of f from the largest to the lowest value. Then, we look for the last position in which f is greater than or equal to the position (we call h this position). For example, if we have a researcher with 5 publications A, B, C, D, and E with 10, 8, 5, 4, and 3 citations, respectively, the h-index is equal to 4 because the 4th publication ha...

    Author-level Eigenfactor

    Author-level Eigenfactor is a version of Eigenfactor for single authors. Eigenfactor regards authors as nodes in a network of citations. The score of an author according to this metric is his or her eigenvector centralityin the network.

    Erdős number

    It has been argued that "For an individual researcher, a measure such as Erdős number captures the structural properties of the network whereas the h-index captures the citation impact of the publications. One can be easily convinced that ranking in coauthorship networks should take into account both measures to generate a realistic and acceptable ranking." Several author ranking systems have been proposed already, for instance the Phys Author Rank Algorithm.

    Some academics, such as physicist Jorge E. Hirsch, have praised author-level metrics as a "useful yardstick with which to compare, in an unbiased way, different individuals competing for the same resource when an important evaluation criterion is scientific achievement." However, other members of the scientific community, and even Hirsch himself ha...

    Bartling, Sönke; Friesike, Sascha (2013-12-16). Opening Science: The Evolving Guide on How the Internet is Changing Research ... ISBN 978-3319000251. Retrieved 2015-08-16.
    Sally Morris; Ed Barnas; Douglas LaFrenier; Margaret Reich (2013-02-21). The Handbook of Journal Publishing. ISBN 978-1107653603. Retrieved 2015-08-16.
    Welpe, Isabell M.; Wollersheim, Jutta; Ringelhan, Stefanie; Osterloh, Margit (7 November 2014). Incentives and Performance: Governance of Research Organizations. ISBN 978-3319097848. Retrieved 2015...
    Ding, Ying; Rousseau, Ronald; Wolfram, Dietmar (6 November 2014). Measuring Scholarly Impact: Methods and Practice. ISBN 978-3319103761. Retrieved 2015-08-16.
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    In a world where hunters — humans who possess magical abilities — must battle deadly monsters to protect the human race from certain annihilation, a notoriously weak hunter named Sung Jinwoo finds himself in a seemingly endless struggle for survival. One day, after narrowly surviving an overwhelmingly powerful double dungeon that nearly wipes out h...

    Sung Jinwoo Sung Jinwoo (성진우) is the main protagonist of series. Originally an infamous weak E-Rank hunter, he gets the chance of a lifetime when he is selected as the Player of a magical program called the System and gains the unique ability to grow in strength without limit. By taking advantage of this new power offered to him by the System, Jinw...

    Web novel

    Solo Leveling was first serialized in Kakao's digital comic and fiction platform KakaoPage since July 25, 2016, and later published by D&C Media under their fantasy fiction label "Papyrus". Since 2016, the novel has garnered 2.4 million readers in KakaoPage. The novel was licensed in English by Webnovel under the title Only I level upfrom December 21, 2018, to June 24, 2019. The novel has been licensed and published in collected volumes by Yen Presssince February 16, 2021.


    A webtoon adaptation launched in KakaoPage on March 4, 2018, and concluded its first season on March 19, 2020. Its first collected volume was released by D&C Media on September 26, 2019. In Japan, Solo Leveling launched in Kakao Japan's webtoon and fiction service Piccoma, and accumulated over 1 million cumulative readership. It was also selected as the No. 1 webtoon in Piccoma's "Best of 2019". The webtoon has been published digitally in English by Webnovel and Tappytoon since May 7 and June...


    In January 2022, Netmarble announced that they are developing a role-playing video gamebased on the series.

  3. Genotyping by sequencing. In the field of genetic sequencing, genotyping by sequencing, also called GBS, is a method to discover single nucleotide polymorphisms (SNP) in order to perform genotyping studies, such as genome-wide association studies ( GWAS ). [1] GBS uses restriction enzymes to reduce genome complexity and genotype multiple DNA ...

  4. › wiki › SpectroscopySpectroscopy - Wikipedia

    Spectroscopy, primarily in the electromagnetic spectrum, is a fundamental exploratory tool in the fields of astronomy, chemistry, materials science, and physics, allowing the composition, physical structure and electronic structure of matter to be investigated at the atomic, molecular and macro scale, and over astronomical distances.

  5. George Washington (February 22, 1732 [b] – December 14, 1799) was an American military officer, statesman, and Founding Father who served as the first president of the United States from 1789 to 1797. Appointed by the Continental Congress as commander of the Continental Army, Washington led the Patriot forces to victory in the American Revolutionary War and served as the president of the ...

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