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    en.wikipedia.org/wiki/Retro-tds-codes

    en.wikipedia.org

  3. Download QR code; Wikidata item; Print/export Download as PDF; Printable version ... TDS take by mouth 3 times a day ter die sumendus u.d., ud as directed: ut dictum

  4. List of abbreviations used in medical prescriptions - Wikipedia

    en.wikipedia.org/wiki/List_of_abbreviations_used...

    This is a list of abbreviations used in medical prescriptions, including hospital orders (the patient-directed part of which is referred to as sig codes). This list does not include abbreviations for pharmaceuticals or drug name suffixes such as CD, CR, ER, XT (See Time release technology ยง List of abbreviations for those).

  5. Total dissolved solids - Wikipedia

    en.wikipedia.org/wiki/Total_dissolved_solids

    Total dissolved solids ( TDS) is a measure of the dissolved combined content of all inorganic and organic substances present in a liquid in molecular, ionized, or micro-granular ( colloidal sol) suspended form. TDS are often measured in parts per million (ppm). TDS in water can be measured using a digital meter.

  6. Broadcast television systems - Wikipedia

    en.wikipedia.org/wiki/Broadcast_television_systems

    Broadcasttelevision systems (or terrestrial television systems outside the US and Canada) are the encoding or formatting systems for the transmission and reception of terrestrial television signals. Analog television systems were standardized by the International Telecommunication Union (ITU) in 1961, [1] with each system designated by a letter ...

  7. Retrotransposon - Wikipedia

    en.wikipedia.org/wiki/Retrotransposon

    Retrotransposon. Retrotransposons (also called Class I transposable elements) are mobile elements which move in the host genome by converting their transcribed RNA into DNA through the reverse transcription. [1] Thus, they differ from Class II transposable elements, or DNA transposons, in utilizing an RNA intermediate for the transposition and ...

  8. Retrovirus - Wikipedia

    en.wikipedia.org/wiki/Retrovirus

    A retrovirus is a type of virus that inserts a DNA copy of its RNA genome into the DNA of a host cell that it invades, thus changing the genome of that cell. [2] After invading a host cell's cytoplasm, the virus uses its own reverse transcriptase enzyme to produce DNA from its RNA genome, the reverse of the usual pattern, thus retro (backwards ...

  9. Tone decay test - Wikipedia

    en.wikipedia.org/wiki/Tone_decay_test

    TD is a procedure for diagnosing retro-cochlear pathology (RCP, damage to the auditory nerve). It is part of battery of tests that aim to differentiate between cochlear and retro-cochlear pathology. [citation needed] According to Rosenberg, 1958: 0-5 dB Decay - Normal or Conductive 10-15 dB Decay - Mild 20-25 dB Decay - Moderate