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  2. Physician Quality Reporting System - Wikipedia

    en.wikipedia.org/wiki/Physician_Quality...

    The Physician Quality Reporting System (PQRS), formerly known as the Physician Quality Reporting Initiative (PQRI), is a health care quality improvement incentive ...

  3. Non-standard positional numeral systems - Wikipedia

    en.wikipedia.org/wiki/Non-standard_positional...

    In some systems, while the base is a positive integer, negative digits are allowed. Non-adjacent form is a particular system where the base is b = 2.In the balanced ternary system, the base is b = 3, and the numerals have the values −1, 0 and +1 (rather than 0, 1 and 2 as in the standard ternary system, or 1, 2 and 3 as in the bijective ternary system).

  4. QRS complex - Wikipedia

    en.wikipedia.org/wiki/QRS_complex

    Schematic representation of a normal sinus rhythm ECG wave. Diagram showing how the polarity of the QRS complex in leads I, II, and III can be used to estimate the heart's electrical axis in the frontal plane.

  5. Category:Non-standard positional numeral systems - Wikipedia

    en.wikipedia.org/wiki/Category:Non-standard...

    The value of a digit string like pqrs in base b is given by the polynomial form + + +. The numbers written in superscript represent the powers of the base used. For instance, in hexadecimal (b=16), using the numerals A for 10, B for 11 etc., the digit string 7A3F means

  6. Telephone keypad - Wikipedia

    en.wikipedia.org/wiki/Telephone_keypad

    A telephone keypad using the ITU E.161 standard.. A telephone keypad is a keypad installed on a push-button telephone or similar telecommunication device for dialing a telephone number.

  7. Multi-tap - Wikipedia

    en.wikipedia.org/wiki/Multi-tap

    Multi-tap (multi-press) [1] is a text entry system for mobile phones.The alphabet is printed under each key (beginning on "2") in a three-letter sequence as follows ...

  8. PQRST - Wikipedia

    en.wikipedia.org/wiki/PQRST

    PQRST are the sixteenth through twentieth letters of the ISO basic Latin alphabet and may refer to that alphabet as a whole.. PQRST may refer to: . The PQRST method ...

  9. Projective harmonic conjugate - Wikipedia

    en.wikipedia.org/wiki/Projective_harmonic_conjugate

    Midpoint and infinity are harmonic conjugates. When x is the midpoint of the segment from a to b, then = = By the cross-ratio criterion, the harmonic conjugate of x will be y when t(y) = 1.