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  2. PiggyBac transposon system - Wikipedia

    en.wikipedia.org/wiki/PiggyBac_Transposon_System

    structure summary. The PiggyBac (PB) transposon system employs a genetically engineered transposase enzyme to insert a gene into a cell's genome. It is built upon the natural PiggyBac (PB) transposable element (transposon), enabling the back and forth movement of genes between chromosomes and genetic vectors such as plasmids through a "cut and ...

  3. Emergency service response codes - Wikipedia

    en.wikipedia.org/wiki/Emergency_service_response...

    In the United States, response codes are used to describe a mode of response for an emergency unit responding to a call. They generally vary but often have three basic tiers: Code 3: Respond to the call using lights and sirens. Code 2: Respond to the call with emergency lights, but without sirens. Alternatively, sirens may be used if necessary ...

  4. Tinbergen's four questions - Wikipedia

    en.wikipedia.org/wiki/Tinbergen's_four_questions

    Tinbergen's four questions, named after 20th century biologist Nikolaas Tinbergen, are complementary categories of explanations for animal behaviour. These are also commonly referred to as levels of analysis. [ 1] It suggests that an integrative understanding of behaviour must include ultimate ( evolutionary) explanations, in particular ...

  5. Rundfunk Berlin-Brandenburg - Wikipedia

    en.wikipedia.org/wiki/Rundfunk_Berlin-Brandenburg

    Rundfunk Berlin-Brandenburg ( pronounced [ˈʁʊntfʊŋk bɛʁˌliːn ˈbʁandn̩bʊʁk] ⓘ; "Berlin-Brandenburg Broadcasting"), commonly shortened to RBB ( pronounced [ˌɛʁbeːˈbeː] ⓘ; stylized as rbb ), is an institution under public law (national broadcaster) for the German states of Berlin and Brandenburg, based in Berlin and Potsdam.

  6. Social Security (United States) - Wikipedia

    en.wikipedia.org/wiki/Social_Security_(United...

    A nonresident alien who is a student, scholar, professor, teacher, trainee, researcher, physician, au pair, or summer camp worker and is temporarily in the United States in F-1, J-1, M-1, Q-1, or Q-2 nonimmigrant status for wages paid to them for services that are allowed by their visa status and are performed to carry out the purposes the visa ...

  7. I–V–vi–IV progression - Wikipedia

    en.wikipedia.org/wiki/I–V–vi–IV_progression

    vi–IV–I–V chord progression in C Play ⓘ. The I–V–vi–IV progression is a common chord progression popular across several genres of music. It uses the I, V, vi, and IV chords of a musical scale. For example, in the key of C major, this progression would be C–G–Am–F. [ 1] Rotations include: I–V–vi–IV : C–G–Am–F. V ...

  8. The Price Is Right - Wikipedia

    en.wikipedia.org/wiki/The_Price_Is_Right

    The contestant wins an additional $10,000 for landing on either 5¢ or 15¢ (which are adjacent to the $1.00 space and painted green), or an additional $25,000 for landing on $1.00. From December 1978 to July 17, 2008, the bonuses were $5,000 and $10,000 for landing on a green section and the $1.00, respectively. [ 10 ]

  9. Glossary of mathematical symbols - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_mathematical...

    A mathematical symbol is a figure or a combination of figures that is used to represent a mathematical object, an action on mathematical objects, a relation between mathematical objects, or for structuring the other symbols that occur in a formula. As formulas are entirely constituted with symbols of various types, many symbols are needed for ...