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  2. Anatomical Therapeutic Chemical Classification System

    en.wikipedia.org/wiki/Anatomical_Therapeutic...

    National issues of the ATC classification, such as the German Anatomisch-therapeutisch-chemische Klassifikation mit Tagesdosen, may include additional codes and DDDs not present in the WHO version. [16] ATC follows guidelines [17] in creating new codes for newly approved drugs. An application is submitted to WHO for ATC classification and DDD ...

  3. Air traffic controller - Wikipedia

    en.wikipedia.org/wiki/Air_traffic_controller

    Air traffic controllers are generally individuals who possess superior situational awareness, spatial awareness, and are well organized.Other skills that are essential include a fast processing of numeric computations and mathematics, assertive and firm decision-making skills, the ability to maintain their composure under pressure, and an excellent short-term memory.

  4. Spreadsheet - Wikipedia

    en.wikipedia.org/wiki/Spreadsheet

    A cell on a different sheet of the same spreadsheet is usually addressed as: =SHEET2!A1 (that is; the first cell in sheet 2 of the same spreadsheet). Some spreadsheet implementations in Excel allow cell references to another spreadsheet (not the currently open and active file) on the same computer or a local network.

  5. Numeric precision in Microsoft Excel - Wikipedia

    en.wikipedia.org/wiki/Numeric_precision_in...

    Excel maintains 15 figures in its numbers, but they are not always accurate; mathematically, the bottom line should be the same as the top line, in 'fp-math' the step '1 + 1/9000' leads to a rounding up as the first bit of the 14 bit tail '10111000110010' of the mantissa falling off the table when adding 1 is a '1', this up-rounding is not undone when subtracting the 1 again, since there is no ...

  6. Air traffic control radar beacon system - Wikipedia

    en.wikipedia.org/wiki/Air_traffic_control_radar...

    An ATC ground station consists of two radar systems and their associated support components. The most prominent component is the PSR. It is also referred to as skin paint radar because it shows not synthetic or alpha-numeric target symbols, but bright (or colored) blips or areas on the radar screen produced by the RF energy reflections from the target's "skin."

  7. Air traffic controller (United States Navy) - Wikipedia

    en.wikipedia.org/wiki/Air_Traffic_Controller...

    An air traffic controller 2nd class monitors a radar display for returning helicopters on the USS Bonhomme Richard.. Specific duties include: Controlling and directing air traffic at airfields and on aircraft carriers and large amphibious assault shipsusing radio, radar, and other signaling devices.

  8. Aspartate carbamoyltransferase - Wikipedia

    en.wikipedia.org/wiki/Aspartate_carbamoyltransferase

    Aspartate carbamoyltransferase (also known as aspartate transcarbamoylase or ATCase) catalyzes the first step in the pyrimidine biosynthetic pathway (EC 2.1.3.2). [1]In E. coli, the enzyme is a multi-subunit protein complex composed of 12 subunits (300 kDa in total). [2]

  9. ATC - Wikipedia

    en.wikipedia.org/wiki/ATC

    Ancillary Terrestrial Component, a U.S. Federal Communications Commission-approved technique for using a network of cell-phone towers to supplement a Mobile Satellite Service UK Astronomy Technology Centre , based at the Royal Observatory in Edinburgh, Scotland, part of the Science and Technology Facilities Council