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  2. Halo sign - Wikipedia

    It can be associated with hemorrhagic nodules, tumors, or inflammatory processes, but is most commonly known as an early radiographic sign of invasive pulmonary infection by the fungus species Aspergillus. In nursing, the halo sign is the result of a test to see if drainage from a head injury contains cerebrospinal fluid. When a Dextrostix or ...

  3. Prohibitory traffic sign - Wikipedia

    Usually shown as a red diagonal bar inside a blue circle with a red ring in Europe and parts of Asia, and a 'P' in a red circle with a cross through in North and South America, elsewhere in Asia, Australia, Africa and Ireland. The no parking sign is a part of controlled parking zone sign, which is obsolete in Belgrade from 1997. [citation needed]

  4. Indian rupee sign - Wikipedia

    The Indian rupee sign (₹) is the currency symbol for the Indian rupee (ISO 4217: INR), the official currency of India. Designed by D. Udaya Kumar , it was presented to the public by the Government of India on 15 July 2010, [1] following its selection through an open competition among Indian residents.

  5. Psoas sign - Wikipedia

    The psoas sign, also known as Cope's psoas test or Obraztsova's sign, is a medical sign that indicates irritation to the iliopsoas group of hip flexors in the abdomen, and consequently indicates that the inflamed appendix is retrocaecal in orientation (as the iliopsoas muscle is retroperitoneal).

  6. Trousseau sign - Wikipedia

    Trousseau sign is the name of two distinct phenomena observed in clinical medicine. Both are attributed to Armand Trousseau: . Trousseau sign of latent tetany; Trousseau sign of malignancy (aka migratory thrombophlebitis)

  7. Murphy's sign - Wikipedia's_sign

    In medicine, Murphy's sign (also known as Sweeney’s sign) is a maneuver during a physical examination as part of the abdominal examination. It is useful for differentiating pain in the right upper quadrant. Typically, it is positive in cholecystitis, but negative in choledocholithiasis, pyelonephritis, and ascending cholangitis

  8. Null sign - Wikipedia

    The null sign (∅) is often used in mathematics for denoting the empty set (however, the variant seems more commonly used). The same letter in linguistics represents zero , the lack of an element. It is commonly used in phonology , morphology , and syntax .

  9. Sign extension - Wikipedia

    Sign extension (abbreviated as sext) is the operation, in computer arithmetic, of increasing the number of bits of a binary number while preserving the number's sign (positive/negative) and value. This is done by appending digits to the most significant side of the number, following a procedure dependent on the particular signed number ...