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  • 2000-2004  (2)
  • 1950-1954  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Spectrophotometric Determination of Silicon (1952)
    s.l. : American Chemical Society
    Analytical chemistry 24 (1952), S. 472-477 
    Details
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ac60063a010
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Linearized magnetohydrodynamic theory of Langmuir probes with resistivity, friction, and polarization (2001)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 8 (2001), S. 4732-4739 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Standard Langmuir probe analysis interprets the entire voltage drop to occur in the sheath and neglects any voltage drop due to bulk resistivity. In a magnetized plasma this implies a strong mechanism to damp the E×B drift around the probe's flux tube. Application of linearized magnetohydrodynamics to the bulk plasma allows the consideration of a variety of geometries and damping mechanisms on an equal footing and the treatment of plasma turbulence without the inappropriate recourse to anomalous transport coefficients. An analytic expression for the apparent temperature determined by long flush mounted Langmuir probes can be found if the boundary conditions are also linearized. The friction on neutrals is always stronger than viscosity and is able to account for all the I–V characteristics measured in the ASDEX Upgrade [M. Kaufmann et al., Plasma Physics and Controlled Fusion 35, 205 (1993)] divertor. At all but the lowest densities, the polarization term associated with E×B drifts is stronger still. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1384873
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Transgenic oat plants via visual selection of cells expressing green fluorescent protein (2000)
    Springer
    Plant cell reports 19 (2000), S. 661-666 
    Details
    ISSN: 1432-203X
    Keywords: Key words Genetic engineering ; Green fluorescent protein ; Oat ; Transformation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  New selectable markers and selection systems are needed to increase the efficiency and flexibility of plant transformation. The objective of this research was to determine if the green fluorescent protein (gfp) gene could be utilized as a visual selectable marker for transformation of oat (Avena sativa L.). A modified gfp gene was delivered into oat cells by microprojectile bombardment. Cell clusters expressing gfp were visually identified using fluorescence microscopy and physically isolated at each subculture. Eleven independent transgenic cell lines were obtained, and fertile plants regenerated from all lines. Transgene integration and expression were confirmed in transgenic plants and progeny. Transgene expression segregated in a 3 : 1 ratio in progeny of the majority of the transgenic lines.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002999900167
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    Paper (German National Licenses)
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