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  2. Attention deficit hyperactivity disorder - Wikipedia

    en.wikipedia.org/wiki/Attention_deficit...

    0.8–1.5% (2019, using DSM-IV-TR and ICD-10) [2] Attention deficit hyperactivity disorder ( ADHD) is a neurodevelopmental disorder characterised by executive dysfunction occasioning symptoms of inattention, hyperactivity, impulsivity and emotional dysregulation that are excessive and pervasive, impairing in multiple contexts, and otherwise age ...

  3. List of TCP and UDP port numbers - Wikipedia

    en.wikipedia.org/wiki/List_of_TCP_and_UDP_port...

    This is a list of TCP and UDP port numbers used by protocols for operation of network applications. The Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP) only need one port for duplex, bidirectional traffic.

  4. Venus - Wikipedia

    en.wikipedia.org/wiki/Venus

    Venus is the second planet from the Sun. It is a terrestrial planet and is the closest in mass and size to its orbital neighbour Earth. Venus is notable for having the densest atmosphere of the terrestrial planets, composed mostly of carbon dioxide with a thick, global sulfuric acid cloud cover.

  5. Internal Revenue Service - Wikipedia

    en.wikipedia.org/wiki/Internal_Revenue_Service

    The Internal Revenue Service ( IRS) is the revenue service for the United States federal government, which is responsible for collecting U.S. federal taxes and administering the Internal Revenue Code, the main body of the federal statutory tax law. It is an agency of the Department of the Treasury and led by the Commissioner of Internal Revenue ...

  6. D. B. Cooper - Wikipedia

    en.wikipedia.org/wiki/D._B._Cooper

    Survivors. 41. D. B. Cooper was an unidentified man who hijacked Northwest Orient Airlines Flight 305, a Boeing 727 aircraft, in United States airspace on November 24, 1971. During the flight from Portland, Oregon, to Seattle, Washington, the hijacker told a flight attendant he was armed with a bomb, demanded $200,000 in ransom (equivalent to ...

  7. A Song of Ice and Fire - Wikipedia

    en.wikipedia.org/wiki/A_Song_of_Ice_and_Fire

    A Song of Ice and Fire is a series of epic fantasy novels by the American novelist and screenwriter George R. R. Martin. He began writing the first volume, A Game of Thrones, in 1991, publishing it in 1996. Martin originally envisioned the series as a trilogy but has released five out of a planned seven volumes.

  8. List of Dalits - Wikipedia

    en.wikipedia.org/wiki/List_of_Dalits

    Ram Sundar Das, Chief Minister, Bihar [39] Bhola Paswan Shastri, Chief Minister of Bihar [40] Jagannath Pahadia, Chief Minister of Rajasthan [40] Mayawati, First woman chief minister in India, from the state of Uttar Pradesh. Charanjit Singh Channi, First Dalit Chief Minister of Punjab.

  9. Standard deviation - Wikipedia

    en.wikipedia.org/wiki/Standard_deviation

    The standard deviation σ of X is defined as which can be shown to equal. Using words, the standard deviation is the square root of the variance of X . The standard deviation of a probability distribution is the same as that of a random variable having that distribution. Not all random variables have a standard deviation.