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  • 1
    ISSN: 0942-0940
    Keywords: Cerebral ischaemia ; vascular reserve ; acetazolamide ; laser Doppler
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The effect of acetazolamide on the cerebral blood flow was studied in gerbils with unilateral carotid ligation. According to the effect of ligation the animals were divided into three groups: first group — the reduction more than 70%, second — CBF reduction 30–70% and the third group — CBF reduction less than 30%. The effect of acetazolamide administration was closely related to the effect of carotid ligation. More reduction of CBF was produced by carotid ligation, less increase of CBF after acetazolamide injection was noticed. The acetazolamide vascular reserve test was found a sensitive and useful method for detecting even modest reduction of vascular reserve in animals with slight — less than 30% CBF decrease following carotid ligation.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Il nuovo cimento della Società Italiana di Fisica 2 (1983), S. 2002-2006 
    ISSN: 0392-6737
    Keywords: Photoluminescence
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Riassunto Si è misurata ed analizzata la fotoluminescenza del composto a strati CdInGaS4. Si è trovato che la larga banda di emissione a circa 1.9 eV è composta di tre bande con picchi a 2.16, 1.98 e 1.76 eV a 4.8 K. Queste bande sono dovute a transizioni da libero a legato o da donatore ad accettore. Si è trovata una nuova banda di emissione con picco a 2.38 eV. Questa banda mostra che l'intensità di picco dipende marcatamente dalla posizione nel cristallo ed è correlata a centri localizzati. Si discute l'origine dei centri.
    Abstract: Резюме Измеряется и анализируется фотолюминесценция слоистых соединений CdInGaS4. Обнаружено, что широкая полоса излучения около 1.95 эВ состоит из трех зон 2.16, 1.98 и 1.76 эВ при 4.8 К. Эти зоны связаны с переходами из свободного состояния в связанное или от донора к акцептору. Мы обнаружили новую полосу излучения вблизи 2.38 эВ. Эта полоса имеет интенсивность, которая зависит от положения в кристалле и связана с локализованными центрами. Обсуждается природа этих центров.
    Notes: Summary The photoluminescence of the layered compound CdInGaS4 was measured and analysed. The broad emission band at about 1.95 eV was found to be composed of three bands peaking at 2.16, 1.98 and 1.76 eV at 4.8K. These bands are due to free-to-bound or donor-to-acceptor transitions. We have found a new emission band peaking at 2.38 eV. This band shows that peak intensity markedly depends on the position in the crystal and is related to localized centres. The origin of the centres is discussed.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Child's nervous system 13 (1997), S. 613-615 
    ISSN: 1433-0350
    Keywords: Key words Cavernous angioma ; Brain stem ; Infant
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract An infantile case of surgically resected brain stem cavernous angioma is presented. This 21-month-old boy was admitted to our department after repeated severe pontine hemorrhage. A deeplying lesion with hematoma was successfully removed via the IV ventricle approach. Few infantile cases of this lesion have been presented previously, and the approaches to brain stem cavernous angiomas in infants are discussed.
    Type of Medium: Electronic Resource
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