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  • 2000-2004  (2)
  • 2001  (2)
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  • 2000-2004  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 90 (2001), S. 6542-6544 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The stray field of individual nanostructured permalloy (Py) disks has been measured by means of a sub-μm Hall magnetometer which incorporates a ballistic two-dimensional electron system. The circular nanomagnets have diameters of d=500, 600, and 700 nm and thickness of t=20 nm. The characteristic shape of the experimental Hall curves can be explained by the behavior expected from micromagnetic simulations. They indicate that near remanence the disks are in the vortex phase. For the largest Py nanomagnet, if saturated, an averaged value of the stray field of 36 mT is measured in our 300 nm wide Hall sensor. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1525-1446
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Quality of care for vulnerable elderly clients makes it important to consider the psychosocial effects of interactive computer use as a means to communicate for social, functional, and/or health care purposes in a home health care setting. In a 3-month randomized prospective trial, telecommunications terminals were installed in the private residences of computer-illiterate persons, 65-years-of-age and older, providing visiting nurses the opportunity to teach computer use with three different training methods. The control group had similar weekly nurse visits, but no computer terminal use. Pre-posttests using the Rosenberg Self-Esteem Scale and the Geriatric Depression Scale compared change in self-esteem and depression scores of computer-use clients with the scores of the control group clients.Interactive computer use, alone, did not significantly change scores. Compared to the control group, however, there was a significant change toward improved self-esteem and depression when interactive computer use was accompanied with weekly nurse computer training. Weekly training with a significant other, as a substitute for the nurse trainer, significantly improved self-esteem scores but not depression scores. Interactive computer use was not associated with decreased self-esteem or increased depression. Attitude changes and responses to the particular telecommunication service used in this study were mixed, suggesting future research should be based on improved telecommunication systems with access to programs that have greater practical application to the needs of elderly clients.
    Type of Medium: Electronic Resource
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