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  • 1990-1994  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Trauma involving the proximal tibial epiphysis (1991)
    Springer
    Archives of orthopaedic and trauma surgery 110 (1991), S. 301-306 
    Details
    ISSN: 1434-3916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Thirty injuries involving the proximal tibial epiphysis were treated during a period of 28 years. The epiphysis was displaced in 16 cases (53%). Three patients presented with peripheral ischemia on admission, and one patient with associated ipsilateral femoral fracture developed delayed thrombosis of the popliteal artery. The treatment results were satisfactory in 21 of the 27 (74%) who were reassessed according to Shelton's evaluation criteria after an average post-traumatic interval of 11.6 years. Three of the six patients with unsatisfactory outcome had a discrepancy in leg length of more than 2.5 cm after concomitant ipsilateral fracture of the femur or the tibia. One patient had a positive 3-cm anterior drawer sign, one patient had a 10° valgus deformity of the tibia, and one had to undergo above-knee-amputation because of delayed diagnosis of the vascular lesion.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00443463
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Boundary slip in spin-polarized quantum systems (1994)
    Springer
    Journal of low temperature physics 97 (1994), S. 55-90 
    Details
    ISSN: 1573-7357
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We describe the effects of boundary slip in spin-polarized quantum liquids and gases. The slip coefficients in boundary conditions form a 3 × 3 matrix. The off-diagonal coefficients are expressed via each other with the help of the Onsager relations. We calculate accurate lower and upper bounds of all slip coefficients for polarized degenerate Fermi liquids and for dilute gases at arbitrary temperatures. The calculations are based on the transport equation for spin-polarized systems with diffuse boundary conditions. The results for gases are especially simple in the limiting cases of low-temperature degenerate systems or in the high-temperature classical Boltzmann regime. All slip coefficients are proportional to the mean free path and increase with increasing spin polarization. As a by-product the theory describes the slip effects in binary mixtures of classical gases or Fermi liquids when the role of spin polarization is played by the concentration of the mixture.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00752979
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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