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  • 1985-1989  (2)
  • 1955-1959
  • 78.50-w  (1)
  • Family screening  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Vibrational modes and infrared absorption of interstitial oxygen in silicon (1987)
    Springer
    Applied physics 42 (1987), S. 257-262 
    Details
    ISSN: 1432-0630
    Keywords: 61.70-r ; 71.55-i ; 78.50-w
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract A quasi-linear Si2O molecule model (QLMM) is suggested from an analysis of the configuration and the interactions of an isolated oxygen atom with its neighbor silicon atoms. The vibrational modes are assigned and the infrared absorption spectra are calculated in detail with the model. The theoretical results are in reasonably good agreement with reported experimental values. This agreement shows that for the analysis of the vibrational modes of the interstitial oxygen atom in silicon crystals it is not necessary to consider the coupling of the “molecule” with the rest of the lattice. The interaction of the oxygen atom with its six second-nearest silicon atoms only causes the level separation of theν 2 mode and the formation of the fine structure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00616559
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    A Chinese family with phenylketonuria and maternal phenylketonuria detected by family screening (1986)
    Springer
    European journal of pediatrics 145 (1986), S. 409-412 
    Details
    ISSN: 1432-1076
    Keywords: Hyperphenylalaninaemia ; Phenylketonuria ; Maternal PKU ; Screening ; follow-up PKU girls ; Family screening
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A 16-year-old boy with classical phenylketonuria (PKU) and mild mental retardation (IQ 69) was detected by the screening of mentally retarded school children in Taiwan with Guthrie's bacterial inhibition assay. The follow-up family study showed that one of his married elder sisters suffered from borderline mental retardation (IQ 75) and was also diagnozed as a classical case of PKU. She had borne one boy and one girl, both suffering from mild mental retardation, microcephaly, delay in linguistic development and severe growth retardation. This is the first known Chinese family with maternal PKU. To prevent future mental retardation caused by maternal PKU, the simultaneous establishment of a register system with a neonatal screening programe, is indicated for the follow-up of PKU girls, screening of the whole family of newly discovered PKU cases, and to exclude unrecognized maternal PKU in women who have given birth to a microcephalic child.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00439250
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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