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  2. Systems science - Wikipedia

    en.wikipedia.org/wiki/Systems_science

    Systems science, also referred to as systems research, [1] or, simply, systems, [2] is a transdisciplinary [3] field that is concerned with understanding simple and complex systems in nature and society, which leads to the advancements of formal, natural, social, and applied attributions throughout engineering, technology and science, itself.

  3. Urinary Catheters: Uses, Types, and Complications - Healthline

    www.healthline.com/health/urinary-catheters

    cloudy urine due to pus. burning of the urethra or genital area. leaking of urine out of the catheter. blood in the urine. foul-smelling urine. low back pain and achiness. Other complications from ...

  4. BPPV is a condition that causes small crystals to get loose and start to float in the fluid of your inner ear. The movement of the crystals and the fluid leads you to feel dizzy. Sometimes an ear ...

  5. List of operating systems - Wikipedia

    en.wikipedia.org/wiki/List_of_operating_systems

    Business Operating System (BOS) – developed to be ported across microcomputers. EOS – developed by ETA Systems for use in their ETA-10 line of supercomputers. EMBOS – developed by Elxsi for use on their mini-supercomputers. GCOS – a proprietary operating system originally developed by General Electric.

  6. List of planet types - Wikipedia

    en.wikipedia.org/wiki/List_of_planet_types

    List of planet types. From top to bottom: Mercury, Venus without its atmosphere, Earth and the Moon, Mars, Jupiter, Saturn, Uranus, and Neptune (not to scale) The following is a list of planet types by their mass, orbit, physical and chemical composition, or by another classification. The IAU defines that a planet in the Solar System must orbit ...

  7. List of calendars - Wikipedia

    en.wikipedia.org/wiki/List_of_calendars

    This is a list of calendars.Included are historical calendars as well as proposed ones. Historical calendars are often grouped into larger categories by cultural sphere or historical period; thus O'Neil (1976) distinguishes the groupings Egyptian calendars (Ancient Egypt), Babylonian calendars (Ancient Mesopotamia), Indian calendars (Hindu and Buddhist traditions of the Indian subcontinent ...

  8. List of numeral systems - Wikipedia

    en.wikipedia.org/wiki/List_of_numeral_systems

    List of numeral system topics. Numeral prefix – Prefix derived from numerals or other numbers. Radix – Number of digits of a numeral system. Radix economy – Number of digits needed to express a number in a particular base. Table of bases – 0 to 74 in base 2 to 36.

  9. Alopecia Types, Causes, Symptoms, and Treatment - Healthline

    www.healthline.com/health/alopecia-types

    In addition to genetic and immune system triggers for hair loss, hormonal factors — particularly reduced levels of the male sex hormone dihydrotestosterone — can also contribute to male hair ...