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  • Articles  (7)
  • 1995-1999  (7)
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  • Articles  (7)
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  • 1
    ISSN: 1434-3916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We studied the results of different durations of application of the Pavlik harness for congenital dislocation or subluxation of the hip. For this, 110 hips in 106 patients were successfully reduced and examined when 6 years old. Dislocation and subluxation cases were divided into two groups: a long-term (4 months for dislocation and 3 months for subluxation) and a short-term (3 months for the former and 2 months for the latter) group. We compared them by roentgenographic analysis. The association between the long- and short-term groups was tested using statistical analyses. There were no significant differences between them, except for one item in subluxation. Therefore, we can say that the duration of application of the Pavlik harness should be reduced to 3 months for dislocation and 2 months for subluxation.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1434-3916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We studied the results of different durations of application of the Pavlik harness for congenital dislocation or subluxation of the hip. For this, 110 hips in 106 patients were successfully reduced and examined when 6 years old. Dislocation and subluxation cases were divided into two groups: a long-term (4 months for dislocation and 3 months for subluxation) and a short-term (3 months for the former and 2 months for the latter) group. We compared them by roentgenographic analysis. The association between the long- and short-term groups was tested using statistical analyses. There were no significant differences between them, except for one item in subluxation. Therefore, we can say that the duration of application of the Pavlik harness should be reduced to 3 months for dislocation and 2 months for subluxation.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 69 (1996), S. 3972-3974 
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Carrier localization in a disordered potential was studied in type-I strained Si1−xGex/Si superlattices (SLs) where layer widths have been artificially pseudorandomized. The photoluminescence (PL) intensity under a transverse bias voltage varies monotonically and exhibits a folded increase as the bias is increased as opposed to an ordered SL where only steady drop-off of PL intensity, symmetric with respect to bias polarity, was observed with increasing field strength. The results indicate that electron and hole wave functions are located spatially apart at zero bias due to disorder-induced localization. We point out that such a wave-function displacement is even pronounced for type-II SL potentials in the presence of monolayer thickness fluctuation. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1600-0765
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: We re-evaluated several antibiotics including newer ones, for their in vitro killing activity, as well as their inhibitory activity, against clinical isolates of periodontopathic bacteria. Tetracyclines were active against Porphyromonas gingivalis, and were highly active against Prevotella intermedia, but demonstrated only a low killing activity against Actinobacillus actinomycetemcomitans. Rokitamycin. a new macrolide, and clindamycin were highly active against P. gingivalis and P. intermedia, but showed very weak killing activity against A. actinomycetemcomitans. Quinolones demonstrated excellent bactericidal activity against A. actinomycetemcomitans, and good inhibitory and bactericidal activity against P. gingivalis and P. intermedia. Metronidazole had an activity almost equivalent to quinolones against P. gingivalis and P. intermedia; but it was the least active against A. actinomycetemcomitans.
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  • 5
    ISSN: 1572-9540
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We report recent progress to date on the UT‐MSL/KEK “Ultra Slow Muon” project, in which thermal muonium (Mu) atoms are generated from the surface of a hot tungsten target placed at the primary 500 MeV proton beam line and resonantly ionized by intense u.v. lasers synchronized with the emission of the Mu. The positive muon ionization fragments are collected by electrostatic beam optics to form a beam of slow positive muons.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1435-702X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  • Background: We previously reported a new system of electroretinographic monitoring of the retinal function during vitrectomy in human eyes, and found that lowering the intravitreal temperature by applying an infusion solution kept at room temperature (used routinely for vitrectomy throughout the world) can alter the electroretinogram (ERG). This time we attempted to study the effect upon the ERG of replacing the intraocular medium and acutely elevating the intraocular pressure during vitrectomy. • Methods: Using a special contact lens with a built-in light-emitting diode light source, 30-Hz flicker ERG was quickly recorded under aseptic conditions. • Results: Acute, reversible reduction in amplitude was observed upon replacing the intraocular medium with air or silicone oil and during periods of acutely elevated intraocular pressure. Infusions of gentamicin or miconazole did not affect the ERG when intravitreal temperature and intraocular pressure were constant. • Conclusion: The ERG monitor can reveal changes of the retinal function during vitrectomy, particularly when the infusion temperature, intraocular medium and intraocular pressure are kept constant.
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  • 7
    Electronic Resource
    Electronic Resource
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 68 (1996), S. 2097-2099 
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Excitonic photoluminescence in a transverse electric field has been studied in strained Si1−xGex/Si type-I quantum wells (QWs) in the weak field regime. With increasing electric field, a steady blue-shift of the free exciton emission energies has been observed, thereby suppressing the anticipated downward shift due to a quantum confined Stark effect. It is revealed that a field-driven decrease of the exciton binding energies gives a good account of the experimental blue-shift for a wide range of well widths, which is also in good agreement with variational calculations. We also find that the extremely small conduction band offset characteristic of stained Si1−xGex/Si type-I QWs is responsible for the absence of the Stark red-shift and the mixed dimensionality. © 1996 American Institute of Physics.
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