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  • Absidia corymbifera  (1)
  • Atomic and molecular measurement and techniques  (1)
  • CNPq  (1)
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  • 1
    Digitale Medien
    Digitale Medien
    Determination of the saturation parameter of electronic transition in a uranium-neon hollow-cathode discharge by optogalvanic spectroscopy (1992)
    Springer
    Il nuovo cimento della Società Italiana di Fisica 14 (1992), S. 605-611 
    Details
    ISSN: 0392-6737
    Schlagwort(e): Other topics in atomic spectra and interactions of atoms with photons ; Photon interactions with atoms ; Atomic and molecular measurement and techniques
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Summary The optogalvanic signal (OGS) induced in a uranium-neon hollow-cathode discharge was measured as a function of the laser power density for the 0→16900 cm−1 (591.5 nm) uranium transition. Theoretical relations derived by solving a two-level system rate equations showed the OGS dependence on the laser photon flux, for a modulated c.w. light and for stimulated transitions starting from the ground state. A fitting of the theoretical relations to the experimental measurements allowed the determination of the σ0 τ product, that is, the saturation parameter of the transition. The results showed good agreement between the σ0 τ values obtained by the optogalvanic and the usual optical absorption processes.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02462347
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Infrared optoacoustic spectroscopy of13CD3OD around the 10R and 10P CO2 laser lines (1996)
    Springer
    International journal of infrared and millimeter waves 17 (1996), S. 1821-1838 
    Details
    ISSN: 1572-9559
    Schlagwort(e): Optoacoustic spectroscopy ; FIR lasers ; Methanol isotopes ; FAPESP ; CNPq ; FBB ; FAEP - Brasil
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract In this work we present the results of an investigation about Doppler limited infrared absorbing transitions of the C-O stretching vibrational mode of13CD3OD by means of optoacoustic detection. This technique is an alternative, more sensitive and of higher resolution than the Fourier transform spectroscopy which is applied to this methanol isotopomer, due to the contamination problem associated with the fast exchange of OD by OH in the molecule. Using a waveguide CO2 laser of 290 MHz tunability on each line we were able to observe 69 absorptions, most of then of large offset. The data will be useful in theoretical analysis of this sample, as well as a guide in the search for new FIR laser lines.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02069457
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Cutaneous zygomycosis caused byAbsidia corymbifera in a leukemic patient (1995)
    Springer
    Mycopathologia 130 (1995), S. 89-92 
    Details
    ISSN: 1573-0832
    Schlagwort(e): Absidia corymbifera ; Cutaneous zygomycosis ; Latent osteomyelitis
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Abstract A case of cutaneous zygomycosis caused byAbsidia coryabifera in a leukemic patient submitted to chemotherapy is reported. The lesion was located on the little finger of the right hand and probably resulted from a latent osteomyelitis. It progressed to form extensive necrotic area. No systemic infection was detected and the lesion did not appear to be associated with any trauma.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01103455
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