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  • 1
    Electronic Resource
    Electronic Resource
    The effect of endotoxin on thin lipid bilayer membranes (1970)
    Springer
    The journal of membrane biology 3 (1970), S. 67-72 
    Details
    ISSN: 1432-1424
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Summary The effect of endotoxin fromSalmonella typhimurium orEscherichia coli was studied on bilayer lipid membranes (1% lecithin–1% cholesterol in n-decane) formed in buffered 0.1m NaCl solution (pH 6.8). Endotoxin was added to the buffered solution either prior to membrane formation or after stable membranes were formed. In both cases, concentrations of 110 to 720 μg/ml endotoxin initiated a decrease in the electrical resistance of the membranes followed by their rupture. A 50 μg/ml concentration of the agent was unable to elicit any response. Also, the addition of an equal volume of buffer solution, serving as a control, caused no decrease in membrane resistance or survival time. Treatment of the endotoxin with alkaline hydroxylamine to remove esterand amide-bound fatty acids likewise abolished the membrane effect. This is the first report of an endotoxin effect on lipid bilayer membranes. The potential correlation of this interaction of bilayer and endotoxin with the diverse biologic effects of endotoxin is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01868007
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Synoptic scale variability in the distribution of stratospheric aerosols as revealed by airborne lidar (1975)
    Springer
    Optical and quantum electronics 7 (1975), S. 141-145 
    Details
    ISSN: 1572-817X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Notes: Abstract Airborne lidar currently offers the best means of observing the synoptic scale variability in the distribution of aerosols within the lower stratosphere. In this paper, some basic considerations regarding the processing and interpretation of this type of data are discussed. Results from the April 1973 flight between Madrid and Washington, D.C. are presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00619588
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    The use of two angle elastic and Raman scattering to obtain molecular density and aerosol scattering profiles (1975)
    Springer
    Optical and quantum electronics 7 (1975), S. 215-220 
    Details
    ISSN: 1572-817X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Notes: Abstract The method of dual angle, multiple wavelength lidar interrogation to effect a radiative separation of the scattering produced by aerosols and molecules is extended. A given wavelength is transmitted, and the Raman shifted return from nitrogen as well as the elastically scattered transmitted wavelength are both interrogated. This procedure is carried out in the backscatter mode at the zenith and one other slant path at some angle from the zenith. The methodology is developed for obtaining molecular density, temperature, pressure, and aerosol scattering profiles.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00619595
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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