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  • 1985-1989  (2)
  • Cuprates  (1)
  • Ventriculoperitoneal shunt  (1)
  • 1
    Digitale Medien
    Digitale Medien
    Color indicator of cuprate superconductivity observed by polarized light microscopy (1989)
    Springer
    Journal of superconductivity 2 (1989), S. 351-359 
    Details
    ISSN: 1572-9605
    Schlagwort(e): Cuprates ; superconductivity ; optical microscopy ; phase differentiation
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Elektrotechnik, Elektronik, Nachrichtentechnik , Physik
    Notizen: Abstract A common mineralogical technique for identifying individual crystals in a heterogeneous, polycrystalline sample involves the observation at room temperature of their colors in reflected polarized light (colors of polarization). Here we present the observation that a brownish yellow (golden) color of polarization is not only characteristic of the YBa2Cu3O7 superconductor, but of the cuprate superconductors in general and is correlated with the occurrence of superconductivity.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00618522
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Evaluation of brainstem auditory evoked responses in congenital hydrocephalus (1988)
    Springer
    Child's nervous system 4 (1988), S. 334-338 
    Details
    ISSN: 1433-0350
    Schlagwort(e): Brainstem auditory evoked responses ; Brainstem dysfunction ; Congenital hydrocephalus ; Ventriculoperitoneal shunt
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Brainstem auditory evoked responses (BAER) were studied in 20 children with clinically diagnosed and CT-confirmed congenital hydrocephalus before and after shunt surgery. Ninety-five percent of the children showed abnormal responses preoperatively. Prolonged wave V latency was the most common abnormality, followed by increased interwave latencies. Total absence of evoked responses was more common in children with communicating hydrocephalus. Following shunt surgery 50% of cases returned to normal and 20% showed a significant improvement. Abnormalities persisted in 10% of cases. BAER abnormalities referrable to caudal brainstem dysfunction recovered first, following CSF diversion. Study of BAER is useful for identifying physiological brainstem abnormalities in hydrocephalic children and promises to be a sensitive non-invasive diagnostic tool for the detection of “non-infective complications” of shunt surgery, if performed serially during follow up.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00270606
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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    Artikel (Nationallizenzen)
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