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  • J NO 2  (2)
  • AIRCRAFT INSTRUMENTATION  (1)
  • Protoplasts  (1)
  • 1
    Digitale Medien
    Digitale Medien
    Biased organelle transmission in somatic hybrids ofLycopersicon esculentum andSolanum lycopersicoides (1988)
    Springer
    Current genetics 14 (1988), S. 177-182 
    Details
    ISSN: 1432-0983
    Schlagwort(e): RFLP ; Tomato ; Plastid ; Mitochondria ; Protoplasts
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Summary Restriction fragment length polymorphisms (RFLPs) were used to determine the transmission of organelle genomes in somatic hybrid plants of tomato and its wild relativeSolanum lycopersicoides. Biased frequencies of organelle combinations were observed in a population of 70 somatic hybrid plants each derived from a separate callus. The plastids in 68 of 70 hybrids examined were fromL. esculentum. One of the remaining hybrids, plant 240, hadS. lycopersicoides plastids and the other, plant 63, had a mixture of parental plastids. Forty-six of the same 70 plants were analyzed for mtDNA and all had that ofS. lycopersicoides including plant 240. One of these hybrids had novel mtDNA fragments which mayhave resulted from recombination or rearrangement. The biased transmission may have resulted from an initial unequal input of organelles, differential replication of organelles, or nucleo-organelle incompatibility.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00569342
    Standort Signatur Erwartet Verfügbarkeit
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    Artikel (Nationallizenzen)
    Volltext
  • 2
    Digitale Medien
    Digitale Medien
    Measurement of the photodissociation coefficient of NO2 in the atmosphere: I. Method and surface measurements (1983)
    Springer
    Journal of atmospheric chemistry 1 (1983), S. 3-25 
    Details
    ISSN: 1573-0662
    Schlagwort(e): J NO 2 ; NO2 photolysis ; atmospheric photochemistry ; J NO 2measurement
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie , Geologie und Paläontologie
    Notizen: Abstract An instrument, specifically designed for measurements from a balloon platform in the stratosphere, has been used to obtain ground-level values of the atmospheric photodissociation coefficient of nitrogen dioxide, J NO 2.A typical clear-sky value is 8.0×10-3 s-1 when the solar zenith angle is 40°. Measurements were made as a function of solar zenith angle and correlated with a calibrated Eppley UV radiometer. It is shown that J NO 2may be expressed as a simple function of the radiometer output so that estimates of J NO 2can be made using just an upward looking radiometer to an accuracy of about 20%. The measurements are also found to be in good agreement with calculations of J NO 2using a simplified isotropic multiple scattering computer routine.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00113977
    Standort Signatur Erwartet Verfügbarkeit
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    Artikel (Nationallizenzen)
    Volltext
  • 3
    Digitale Medien
    Digitale Medien
    Measurement of the photodissociation coefficient of NO2 in the atmosphere: II, stratospheric measurements (1985)
    Springer
    Journal of atmospheric chemistry 3 (1985), S. 233-245 
    Details
    ISSN: 1573-0662
    Schlagwort(e): J NO 2 ; NO2 photolysis ; atmospheric photochemistry ; J NO 2 measurement
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie , Geologie und Paläontologie
    Notizen: Abstract The photodissociation coefficient of NO2, J NO 2, has been measured from a balloon platform in the stratosphere. Results from two balloon flights are reported. High Sun values of J NO 2 measured were 10.5±0.3 and 10.3±0.3×10-3 s-1 at 24 and 32 km respectively. The decrease in J NO 2 at sunset was monitored in both flights. The measurements are found to be in good agreement with calculations of J NO 2 using a simplified isotropic multiple scattering computer routine.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00210498
    Standort Signatur Erwartet Verfügbarkeit
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    Artikel (Nationallizenzen)
    Volltext
  • 4
    facet.materialart.
    Unbekannt
    An intercomparison of airborne nitrogen dioxide instruments (1990)
    In:  Other Sources
    Details
    Publikationsdatum: 2011-08-19
    Beschreibung: Results on NO2 instruments are reported from the NASA Global Tropospheric Experiment Chemical Instrumentation Test and Evaluation 2 (CITE 2) program in summer 1986. The instruments tested were (1) a two-photon LIF system using a laser for NO2-NO photolysis, (2) a chemiluminescence (CL) detector using FeSO4 for NO2-NO conversion, (3) a CL detector using an arc lamp for NO2-NO photolysis, and (4) a tunable-laser-diode multipath-absorption system. The procedures for the CITE 2 ground-based and flight tests are described in detail, and the results are presented in extensive graphs. Instrument (2) was eliminated because the FeSO4 converted atmospheric PAN to NO, resulting in spuriously high NO2 values. The remaining instruments gave readings in 30-40-percent agreement at NO2 mixing ratios of 100-200 parts per trillion by volume (pptv). At ratios below 50 pptv, the correlation among the measurements was very poor, with a tendency for system (4) to give higher values than (1) or (3).
    Schlagwort(e): AIRCRAFT INSTRUMENTATION
    Materialart: Journal of Geophysical Research (ISSN 0148-0227); 95; 10103-10
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
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    NASA TECHNICAL REPORTS
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