| 11. | The Ampex video system is now obsolete, but many thousands of quadruplex videotape recordings remain.
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| 12. | The quadruplex systems were unable to display video from tape except while playing at normal speed.
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| 13. | A number of naturally occurring proteins have been identified which selectively bind to G-quadruplexes.
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| 14. | The unique structure of quadruplex regions in RNA may serve different functions in a biological system.
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| 15. | However his most famous work was defending Edison s quadruplex telegraph and incandescent light bulb patents.
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| 16. | Once rights issues were resolved, the film was cleaned up from two-inch Quadruplex videotape masters.
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| 17. | They appear to modulate alternative splicing via the interaction with the G-quadruplex RNA-forming structure.
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| 18. | Because of this, the G-quadruplex DNA may play a role in the development of cancer.
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| 19. | In 1956, Ampex introduced the first commercial Quadruplex videotape recorder, followed in 1958 by a color model.
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| 20. | In the 1870s quadruplex transmission and receiving systems were set up that could relay multiple messages over the cable.
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