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Träfflista för sökning "WFRF:(McIntosh E.) srt2:(2000-2004)"

Sökning: WFRF:(McIntosh E.) > (2000-2004)

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  • Kniola, Barbara, et al. (författare)
  • The domain structure of centromeres is conserved from fission yeast to humans
  • 2001
  • Ingår i: Molecular Biology of the Cell. - : American Society for Cell Biology (ASCB). - 1059-1524 .- 1939-4586. ; 12:9, s. 2767-2775
  • Tidskriftsartikel (refereegranskat)abstract
    • The centromeric DNA of fission yeast is arranged with a central core flanked by repeated sequences. The centromere-associated proteins, Mis6p and Cnp1p (SpCENP-A), associate exclusively with central core DNA, whereas the Swi6 protein binds the surrounding repeats. Here, electron microscopy and immunofluorescence light microscopy reveal that the central core and flanking regions occupy distinct positions within a heterochromatic domain. An "anchor" structure containing the Ndc80 protein resides between this heterochromatic domain and the spindle pole body. The organization of centromere-associated proteins in fission yeast is reminiscent of the multilayered structures of human kinetochores, indicating that such domain structure is conserved in eukaryotes.
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  • Yu, H.Y., et al. (författare)
  • Current enhancement with alternating gate voltage in the Coulomb blockade regime of a single wall carbon nanotube
  • 2004
  • Ingår i: Applied Physics A. - : Springer Science and Business Media LLC. - 0947-8396 .- 1432-0630. ; 79, s. 1613-1615
  • Tidskriftsartikel (refereegranskat)abstract
    • We investigated the current–voltage characteristics of a carbon nanotube in a single electron transistor structure with alternating gate voltage. A continuous current enhancement effect with increasing frequency of the applied gate voltage up to 13 MHz is reported. Assuming that I=nef, more than 1000 electrons are driven to flow across the source–drain channel at VDS=100 mV, 13 MHz of gate voltage (Vp-p=2 V) and T=1.8 K. The continuous current enhancement is explained by the broadening effect of the discrete energy levels of the finite-length carbon nanotube.
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