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  2. Triple helix model of innovation - Wikipedia

    en.wikipedia.org/wiki/Triple_helix_model_of...

    Building on the triple helix model, the quadruple helix model adds a fourth component to the framework of interactions between university, industry and government: the public, consisting of civil society and the media. [3] [20] It was first suggested in 2009 by Elias G. Carayannis and David F.J. Campbell. [21]

  3. Obsolete models of DNA structure - Wikipedia

    en.wikipedia.org/wiki/Obsolete_models_of_DNA...

    In a triple-helix model (specifically Pauling and Corey's model), some of the van der Waals distances appear to be too small. The initial double helix model discovered, now termed B-form DNA is by far the most common conformation in cells. [12]

  4. Triple-stranded DNA - Wikipedia

    en.wikipedia.org/wiki/Triple-stranded_DNA

    Triple-stranded DNA (also known as H-DNA or Triplex-DNA) is a DNA structure in which three oligonucleotides wind around each other and form a triple helix. In triple-stranded DNA, the third strand binds to a B-form DNA (via Watson–Crick base-pairing ) double helix by forming Hoogsteen base pairs or reversed Hoogsteen hydrogen bonds.

  5. Quadruple and quintuple innovation helix framework - Wikipedia

    en.wikipedia.org/wiki/Quadruple_and_quintuple...

    The quadruple and quintuple innovation helix framework was co-developed by Elias G. Carayannis and David F.J. Campbell, with the quadruple helix being described in 2009 [3] [4] and the quintuple helix in 2010. [4] [5] Various authors were exploring the concept of a quadruple helix extension to the triple helix model of innovation around the ...

  6. Triple helix - Wikipedia

    en.wikipedia.org/wiki/Triple_helix

    The collagen triple helix is a triple helix formed from three separate protein helices, spiraling around the same axis. In the fields of geometry and biochemistry, a triple helix (pl.: triple helices) is a set of three congruent geometrical helices with the same axis, differing by a translation along the axis. This means that each of the ...

  7. Molecular Structure of Nucleic Acids: A Structure for ...

    en.wikipedia.org/wiki/Molecular_Structure_of...

    In 1951, Pauling published the structure of the alpha helix, a fundamentally important structural component of proteins. In early 1953, Pauling published a triple helix model of DNA, which subsequently turned out to be incorrect. [3] Both Crick, and particularly Watson, thought that they were racing against Pauling to discover the structure of DNA.

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