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  • 1985-1989  (2)
  • 1
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 60 (1989), S. 3482-3484 
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: It is shown that care must be exercised in using digital equipment when making Hall measurements in a van der Pauw setup employing the ASTM standard method. This arises because of quantization error when working near the sensitivity limit of the equipment. For materials with small Hall mobilities (〈100 cm2/V s) this can lead to an incorrect specification of the carrier type and inconsistent mobility behavior. A simple averaging and sampling procedure is suggested to suppress this type of behavior and is found to be sufficient to obtain reliable and repeatable Hall voltages and coefficients.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Clinical & experimental allergy 15 (1985), S. 0 
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Following insect sting anaphylaxis, twenty-five patients of over 500 evaluated, did not have detectable serum venom-specific IgE. Twenty-two were evaluated within 1 year of the reaction, fifteen within 6 months. Anaphylaxis occurred in six patients after their first sting exposure. The clinical features of the sting reaction were typical of the reaction occurring in insect-allergic patients with serum venom-specific IgE. Eleven of the twenty-five patients had negative venom skin tests. These observations suggest that a non-IgE mechanism may be responsible for a minority of insect sting reactions.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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