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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of materials science 30 (1995), S. 4740-4744 
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Barium titanate fine particles of cubic system were synthesized hydrothermally from aqueous barium hydroxide solutions with fine particles of either amorphous or crystalline (rutile) titania in suspension. The mean size of barium titanate particles prepared from amorphous titania ranged from 0.03 μm to 0.11 μm, depending on hydrothermal conditions. The particle size approximately agreed with the crystallite size (0.04–0.09 μm). On the other hand, the mean size of barium titanate particles prepared from rutile titania ranged from 0.2 to 0.7 μm, which was about six times as large as the crystallite size. The difference of sizes of barium titanate particles prepared might be ascribed to the difference in dissolution rates of amorphous or crystalline titania particles.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    International orthopaedics 21 (1997), S. 67-71 
    ISSN: 1432-5195
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé. Nous rapportons ici les résultats des décompression chirurgicales du tunnel tarsien. Trente-sept nerfs tibiaux avaient été décomprimés sur trente-quatre patients (9 hommes et 25 femmes), dont la moyenne d’âge était de 41 ans. L’intervalle moyen des examens de contrôle était de 3,8 ans. D’après les analyses des multiviariables il apparaît que les résultats sont affectés dans l’ordre: par des fibroses autour du nerf, la gravité de la maladie avant l’opération, des entorses de la cheville, des indemnités sociales, des antécédents pathologiques de longue date, et des travaux pénibles. Inversement les résultats sont favorables dans le cas d’un kyste du ganglion, d’absence de facteurs antérieurs et de travail physique peu pénible. La mesure de la latence finale du nerf plantaire médian a fait ressortir des valeurs significatives pour l’évolution du syndrome du tunnel tarsien.
    Notes: Summary. Thirty-four patients with the tarsal tunnel syndrome were treated by decompression of the posterior tibial nerve. The condition was bilateral in 3 cases. There were 9 men and 25 women with an average age at operation of 41 years. The average follow up was for 3.8 years. Multivariate analysis showed that the outcome is influenced, in order of importance, by fibrosis around the nerve, the preoperative severity of the condition, a history of sprained ankle, worker’s compensation, a long history, and heavy work. The results were favourable when there was a short history, the presence of a ganglion, no sprains, and light work. Measurement of the terminal latency of the medial plantar nerve was valuable in assessing recovery. The precise cause of the syndrome and its effect on treatment should be considered before operation.
    Type of Medium: Electronic Resource
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