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  • Ototoxicity  (1)
  • Vincristine  (1)
  • b-value  (1)
  • multiparametric eventclassification  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Sensorineural hearing loss associated with vincristine treatment (1990)
    Springer
    Annals of hematology 61 (1990), S. 320-321 
    Details
    ISSN: 1432-0584
    Keywords: Vincristine ; Ototoxicity ; Hearing loss
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary We describe a 64-year-old patient with multiple myeloma who developed a sudden sensorineural hearing loss shortly after receiving chemotherapy with vincristine. Ototoxicity is not a known side effect of this drug. It would be of interest to perform repeated audiograms on patients receiving vincristine, in order to appreciate the actual ototoxicity of this drug.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01732887
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Frequency-Magnitude Relationships for seismic areas around the capital cities of Solomon, Vanuatu, Tonga and Fiji Islands (2000)
    Springer
    Journal of seismology 4 (2000), S. 285-296 
    Details
    ISSN: 1573-157X
    Keywords: b-value ; earthquake ; Frequency-magnituderelationship ; south Pacific
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract We studied the relationships between the frequency ofoccurrence and the magnitudes in seismogenic areasthat will affect four capital cities in the SouthPacific, namely: Honiara in Solomon Islands, Port Vilain Vanuatu, Suva in Fiji and Nuku'alofa in Tonga. Weused the NEIS catalogues for the period 1973–1997, formagnitudes greater than about 5, in the proximity tothe city under investigation. The definitions of thegeographic boundaries of the seismogenic zones arebased on the classical concepts of the distribution ofthe tectonic plates, the overwhelming number ofstudies that describe the seismotectonics in thoseactive regions and on the observed seismicity andstudies of the local people. Completeness of thecatalogue is assumed because of the high seismicity inthese areas, despite the relatively short time span.We have used a hybrid process combining least squaresfitting and Newtonian search process to find the bestfit of the statistical parameters. The characteristicb value is 1.27, and seems to be irrespective of thedepth and/or region.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1009889017020
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Spectral classification methods in monitoring small local events by the Israel seismic network (1998)
    Springer
    Journal of seismology 2 (1998), S. 237-256 
    Details
    ISSN: 1573-157X
    Keywords: regional seismic network ; multiparametric eventclassification ; spectral semblance ; spectral ratios
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract We use the dense Israel Seismic Network (ISN) to discriminate between low magnitude earthquakes and explosions in the Middle East region. This issue is important for CTBT monitoring, especially when considering small nuclear tests which may be conducted under evasive conditions. We explore the performance of efficient discriminants based on spectral features of seismograms using waveforms of 50 earthquakes and 114 quarry and underwater blasts with magnitudes 1.0–2.8, recorded by ISN short-period stations at distances up to 200 km. The single-station spectral ratio of the low and high-frequency seismic energy shows an overlap between explosions and earthquakes. After averaging over a subnet of stations, the resolving power is enhanced and the two classes of events are separated. Different frequency bands were tested; the (1–3 Hz)/(6–8 Hz) ratio provided the best discriminant performance. We also estimated normalized r.m.s. spectral amplitudes in several sequential equal frequency windows within the 1–12 Hz band and applied multiparametric automatic classification procedures (Linear Discrimination Function and Artificial Neural Network) to the amplitudes averaged over a subnetwork. A leave-one-out test showed a low rate of error for the multiparametric procedures. An innovative multi-station discriminant is proposed, based on spectral modulation associated with ripple-firing in quarry blasts and with the bubbling effect in underwater explosions. It utilizes a distinct azimuth-invariant coherency of spectral shapes for different stations in the frequency range (1–12 Hz). The coherency is measured by semblance statistics commonly used in seismic prospecting for phase correlation in the time domain. After modification, the statistics applied to the network spectra provided event separation. A new feature of all the above mentioned procedures is that they are based on smoothed (0.5 Hz window), instrument-corrected FFT spectra of the whole signal; they are robust to the accuracy of onset time estimation and, thus well suited to automatic event identification.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1009738721893
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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