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  • 1
    Electronic Resource
    Electronic Resource
    Transient Mutism Resolving into Cerebellar Speech after Brain Stem Infarction Following a Traumatic Injury of the Vertebral Artery in a Child (1999)
    Springer
    Acta neurochirurgica 141 (1999), S. 209-213 
    Details
    ISSN: 0942-0940
    Keywords: Keywords: Mutism; child; trauma; midbrain; infarction.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary  A 3.7-year-old girl presented with an anterior neck injury followed by progressive subcutaneous emphysema and loss of consciousness. After resuscitation, a laceration on the first tracheal cartilage was closed surgically. As she was extubated one week later, she was found to have right hemiplegia and muteness. MRI showed a T2-bright lesion on the tegmentum of the left midbrain down to the upper pons. Right vertebral angiography disclosed an intimal flap with stenosis at the C3 vertebral level presumably caused by a fracture of the right C3 transverse process later confirmed in a cervical 3D-CT scan. Her muteness lasted for 10 days, after which she began to utter some comprehensible words in a dysarthric fashion. Her neurological deficits showed improvement within 3 months of her admission. Transient mutism after brain stem infarction has not been reported previously. We discuss the anatomical bases for this unusual reversible disorder in the light of previous observations and conclude that bilateral damage to the dentatothalamocortical fibers at the decussation of the superior cerebellar peduncle may have been responsible for her transient mutism.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s007010050288
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Red organic electroluminescence devices with a reduced porphyrin compound, tetraphenylchlorin (1999)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 74 (1999), S. 2587-2589 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We constructed red organic electroluminescence (EL) devices with a reduced porphyrin compound, tetraphenylchlorin, that was doped at various concentrations (0.5, 1.7, and 3.7 wt %) within a tris(8-hydroxyquinoline) aluminum (Alq3) host layer. We measured their EL properties and found that all three devices emitted a red EL band at 660 nm with a width of 20 nm. Emission color of the 1.7 and 3.7 wt % devices was red (chromaticity coordinates x=0.67, y=0.29 and x=0.78, y=0.21) and the luminance maximum was 100 and 24 cdm−2, respectively. The 0.5 wt % device emitted a green Alq3 EL band as well, and showed an increase in relative intensity of the Alq3 emission with increasing applied voltage. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.123906
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Absent Pulmonary Valve with Intact Ventricular Septum Presenting as Cardiorespiratory Failure at Birth (1997)
    Springer
    Pediatric cardiology 18 (1997), S. 136 -138 
    Details
    ISSN: 1432-1971
    Keywords: Key words: Absent pulmonary valve — Intact ventricular septum — Patent ductus arteriosus — Neonate
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Absent pulmonary valve with intact ventricular septum is a rare congenital anomaly. Most cases are not diagnosed until years after birth, although several cases have been reported in the literature in which cardiorespiratory distress developed during the neonatal period. We present a patient who showed improvement after fairly conservative therapy to alleviate the pulmonary vascular resistance, with ultimate palliative surgery. The aneurysmal dilatation of the pulmonary artery was for the most part confined to the proximal portion of the trunk, possibly because the ductus arteriosus was patent. The literature is reviewed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002469900132
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    Paper (German National Licenses)
    Fulltext
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