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  2. List of non-standard dates - Wikipedia

    en.wikipedia.org/wiki/List_of_non-standard_dates

    [5] [6] The Swedish conversion to the Gregorian calendar was finally accomplished in 1753, when February 17 was followed by March 1. [5] Artificial calendars may also have 30 days in February. For example, in a climate model the statistics may be simplified by having 12 months of 30 days. The Hadley Centre General Circulation Model is an ...

  3. Animal testing on non-human primates - Wikipedia

    en.wikipedia.org/wiki/Animal_testing_on_non...

    Fortrea primate-testing lab, Vienna, Virginia, 2004–05. Most of the NHPs used are one of three species of macaques, accounting for 79% of all primates used in research in the UK, and 63% of all federally funded research grants for projects using primates in the U.S. [25] Lesser numbers of marmosets, tamarins, spider monkeys, owl monkeys, vervet monkeys, squirrel monkeys, and baboons are used ...

  4. Block scheduling - Wikipedia

    en.wikipedia.org/wiki/Block_scheduling

    Block scheduling or blocking is a type of academic scheduling used in some schools in the American K-12 system, in which students have fewer but longer classes per day than in a traditional academic schedule.

  5. Coligny calendar - Wikipedia

    en.wikipedia.org/wiki/Coligny_calendar

    But it does not necessarily follow that the calendar was then based on a 30-year cycle. If the calendar was a 30-year cycle, the luni-solar swing would be 46 days, meaning that the timing of festivals would often be inappropriate to their seasonal nature. For example, Lugnasad might find itself in the middle of the busy harvest.

  6. Even and odd functions - Wikipedia

    en.wikipedia.org/wiki/Even_and_odd_functions

    If a real function has a domain that is self-symmetric with respect to the origin, it may be uniquely decomposed as the sum of an even and an odd function, which are called respectively the even part (or the even component) and the odd part (or the odd component) of the function, and are defined by = + (), and = ().

  7. There Are So Many Fun Holidays and Observances to Celebrate ...

    www.aol.com/many-fun-holidays-observances...

    Here's a list of the March holidays and observances to know about in 2024. St. Patrick's Day, World Compliment Day, and more make it on this list.

  8. Parity of a permutation - Wikipedia

    en.wikipedia.org/wiki/Parity_of_a_permutation

    The permutation is odd if and only if this factorization contains an odd number of even-length cycles. Another method for determining whether a given permutation is even or odd is to construct the corresponding permutation matrix and compute its determinant. The value of the determinant is the same as the parity of the permutation. Every ...

  9. NHPS - Wikipedia

    en.wikipedia.org/wiki/NHPS

    NHPS may refer to: New Haven Public Schools, Connecticut; National Health Protection Scheme in India This page was last edited on 14 September 2023, at 10:29 (UTC) ...