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  • 1
    Digitale Medien
    Digitale Medien
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 3 (1996), S. 1452-1458 
    ISSN: 1089-7674
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: Results are presented of numerical calculations of self-consistent equilibria based on a simple fluid model for the interaction of plasma and neutral gas in the lower ionosphere (E and F layer). The model focuses on the aspect of the closure of field-aligned (Birkeland) currents which flow into and out of the lower ionosphere. The dependence of the current structure on the parameters of the model and on the boundary conditions is investigated. It is shown that the model is largely consistent with the observed large scale features of the ionospheric current system. © 1996 American Institute of Physics.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    ISSN: 1433-044X
    Schlagwort(e): Schlüsselwörter Arthroskopische Kapsel-Labrum-Refixation ; Akute und chronische Schulterluxationen ; Isokinetik ; Key words Acute and chronic shoulder instability ; Arthrosopic suture repair ; Isokinetic
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: We examined 30 patients with an arthroscopic suture repair for anterior shoulder instability in a retrospective evaluation. The follow-up period ranged from 12 to 58 months with an average of 22 months. Arthroscopic suture repairs were done on 14 patients (acute group, average age 26.1 years) with acute detached glenoid labrum, confirmed on arthro-CT, within 10 days after the injury and on 16 patients (secondary group, average age 25 years) with chronic should dislocation. The evaluation according to the Rowe scale resulted in a mean score of 97.1 for the acute group, compared with 92.7 for the secondary group. In each group we found one recurrent dislocation, which in the acute group was due to an adequate trauma. Two of the 14 acute group patients showed a reduction in external rotation of up to 20°, compared with 6 patients in the secondary group. The external rotation of one patient in the secondary group was reduced to 40°. The isokinetic muscle strength was decreased in both groups, both for 60°/s and for 120°/s, to 85% compared with the healthy side. The primary surgical therapy of young patients (below 25 years) with an acute shoulder dislocation and a detached glenoid labrum is recommended owing to the lower redislocation rate, an overall shortened course of treatment and a trend to better postsurgical range of motion.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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