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  • 1
    ISSN: 1433-075X
    Keywords: Keywords Zirconia ; Aluminium ; Composites ; Infiltration ; Nanoparticles ; Tribology ; Martensitic ; Tetragonal ; Monoclinic
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract  Aluminium matrix-zirconia nanoparticles-reinforced composites were prepared by the infiltration technique. The metallic matrix for these composites stabilizes the tetragonal phase of zirconia at low temperature (450 °C) whereas at 610 °C a mixture of tetragonal and monoclinic was obtained. The wear resistance of zirconia-modified aluminium was significantly improved due to the presence of the ceramic nanoparticles embedded into the matrix.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical pharmacology 51 (1997), S. 505-506 
    ISSN: 1432-1041
    Keywords: Key words Cerebellopathy ; Flucytosine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: An 87-year old woman with no relevant personal or family history was admitted to the hospital for headache, fever, and confusion over the past week. The vital signs, general and neurological examination were normal. In laboratory tests, the urine, urea nitrogen, glucose, bilirubin, electrolytes, aspartate aminotransferase, creatine kinase, alkaline phosphatase, haematocrit, white-cell count, and platelet were also normal. A lumbar puncture was performed which showed: 60 typical lymphocytes per ml, adenosine deaminase (ADA) activity 6 U ⋅ l−1 (normal under 4 U ⋅ l−1), proteins 75.7 mg ⋅ dl−1, and glucose 13 mg ⋅ dl−1 with a glycaemia of 120 mg ⋅ dl−1. The microbiology study showed staining and a positive culture for Cryptococcus neoformans, and an antigen titre of 1/2080. The serology for HIV infection was negative, and other predisposing factors for this fungal infection, such as immunological defects, a lymphoreticular malignancy and sarcoidosis were excluded. A CT scan of the cranial-thoracic-abdominal regions was normal and tumour markers were absent.
    Type of Medium: Electronic Resource
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