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  2. Pilatus PC-21 - Wikipedia

    en.wikipedia.org/wiki/Pilatus_PC-21

    A PC-21 landing at RAF Fairford, England, 2010. In the Armament Program 2006, the Swiss Parliament approved an initial purchase of the PC-21 for the Swiss Air Force.By April 2008, four PC-21 have been accepted by the Swiss Air Force following the passing of acceptance trials, and flight operations were set to start in July that year. [19]

  3. Quizlet - Wikipedia

    en.wikipedia.org/wiki/Quizlet

    Quizlet made its first acquisition in March 2021, with the purchase of Slader, which offered detailed explanations of textbook concepts and practice problems, and eventually incorporated it into its paid platform, Quizlet Plus. [20] [21] [22] In November 2022, Quizlet announced a new CEO, Lex Bayer, the former CEO of Starship Technologies. [23]

  4. List of limits - Wikipedia

    en.wikipedia.org/wiki/List_of_limits

    This is a list of limits for common functions such as elementary functions. In this article, the terms a, b and c are constants with respect to x.

  5. Computational complexity theory - Wikipedia

    en.wikipedia.org/wiki/Computational_complexity...

    One of the roles of computational complexity theory is to determine the practical limits on what computers can and cannot do. The P versus NP problem , one of the seven Millennium Prize Problems , [ 1 ] is part of the field of computational complexity.

  6. Wisconsin Card Sorting Test - Wikipedia

    en.wikipedia.org/wiki/Wisconsin_Card_Sorting_Test

    [21] [22] The WCST, relies upon a number of cognitive functions including attention, working memory, and visual processing. [ 23 ] [ 24 ] [ 25 ] The WCST was originally developed to measure abstract reasoning [ 26 ] as such it may be used to help measure an individual's competence in abstract reasoning, and the ability to change problem-solving ...

  7. Check 21 Act - Wikipedia

    en.wikipedia.org/wiki/Check_21_Act

    The Check 21 Act took effect one year later on October 28, 2004. The law allows the recipient of a paper check to create a digital version of the original, a process known as check truncation , into an electronic format called a " substitute check ", thereby eliminating the need for further handling of the physical document.

  8. Precocious puberty - Wikipedia

    en.wikipedia.org/wiki/Precocious_puberty

    [21] [22] "Increasing rates of obese and overweight children in the United States may be contributing to a later onset of puberty in boys, say researchers at the University of Michigan Health System." [22] High levels of beta-hCG in serum and cerebrospinal fluid observed in a 9-year-old boy suggest a pineal gland tumor.

  9. Spirometry - Wikipedia

    en.wikipedia.org/wiki/Spirometry

    Clinically useful results are highly dependent on patient cooperation and effort and must be repeated for a minimum of three times to ensure reproducibility with a general limit of ten attempts. Given variable rates of effort, the results can only be underestimated given an effort output greater than 100% is not possible.