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  • 1
    Electronic Resource
    Electronic Resource
    Separation and some properties of two acid phosphatases from suspension cultures ofIpomoea sp. (1981)
    Springer
    Plant cell, tissue and organ culture 1 (1981), S. 265-273 
    Details
    ISSN: 1573-5044
    Keywords: Ipomoea ; morning glory ; cell culture ; acid phosphatases
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Two acid phosphatases isolated from culturedIpomoea (moring glory) cells were separated by column chromatography on DEAE-cellulose. The two acid phosphatases have different pH optima (pH 4.8–5.0 and 6.0) and do not require the presence of divalent ions. The enzymes possess high activity toward pyrophosphate,p-nitrophenylphosphate, nucleoside di- and triphosphates, and much less activity toward nucleoside monophosphates and sugar esters. The two phosphatases differ from each other in Michaelis constants, in the degree of inhibition by arsenate, fluoride and phosphate and have quantitative differences of substrate specificity. In addition, they also differ in their response to various ions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02318923
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  • 2
    Electronic Resource
    Electronic Resource
    Optically Pumped Far-Infrared Laser Lines of Methanol Isotopomers: 12CD3OH, 12CH3OD, and 12CH2DOH (2000)
    Springer
    International journal of infrared and millimeter waves 21 (2000), S. 477-483 
    Details
    ISSN: 1572-9559
    Keywords: 12CD3OH ; 12CH3OD ; 12CH2DOH ; new far-infrared laser lines ; optically pumped far-infrared laser ; laser frequencies ; relative intensity ; relative polarization ; pump-frequency offset
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Twenty-seven new FIR, far-infrared, laser lines from the isotopomers of methanol: 12CD3OH, 12CH3OD, and 12CH2DOH, were obtained by optically pumping the molecules with an efficient cw CO2 laser. The CO2 laser provided pumping from regular, sequence, and hot-band CO2 laser transitions. The 2 m long far-infrared cavity was a metal-dielectric waveguide closed by two, flat end mirrors. Several short-wavelength (below 100 μm) lines were observed. The frequencies of 28 laser lines observed in this cavity (including new lines and already known lines) were measured with a fractional uncertainty limited by the fractional resetability of the far-infrared laser cavity, of 2 parts in 107.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1006667300438
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  • 3
    Electronic Resource
    Electronic Resource
    Optically-Pumped Far-Infrared Laser Lines of Methanol Isotopomers: 12CH3OH, 12CH3OD, and 12CH2DOH (2000)
    Springer
    International journal of infrared and millimeter waves 21 (2000), S. 731-737 
    Details
    ISSN: 1572-9559
    Keywords: 12CD3OH ; 12CH3OD ; 12CH2DOH ; new far-infrared laser lines ; optically-pumped far-infrared laser ; laser frequencies ; relative intensity ; relative polarization ; pump-frequency offset
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Twenty-seven new far-infrared laser lines from the isotopomers of methanol: 12CD3OH, 12CH3OD, and 12CH2DOH, were obtained by optically-pumping the molecules with an efficient cw CO2 laser. The CO2 laser provided pumping from regular, sequence, and hot-band CO2 laser transitions. The 2-m long far-infrared cavity was a metal-dielectric waveguide closed by two, flat end mirrors. Several short-wavelength (below 100 μm) lines were observed. The frequencies of 28 laser lines observed in this cavity (including new lines and already known lines) were measured with a fractional uncertainty limited by the fractional resetability of the far-infrared laser cavity, of 2 parts in 107.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1026408509524
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