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Closing the spin gap in the Kondo insulator Ce 3 Bi 4 Pt 3 at high magnetic fields (2000)

Jaime, Marcelo ; Movshovich, Roman ; Stewart, Gregory R. ; [weitere]

[s.l.] : Macmillian Magazines Ltd.

Nature 405 (2000), S. 160-163

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik

Notizen: [Auszug] Kondo insulator materials—such as CeRhAs, CeRhSb, YbB12, Ce3Bi4Pt3 and SmB6—are 3d, 4f and 5f intermetallic compounds that have attracted considerable interest in recent years. At high temperatures, they behave like metals. But ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/35012027

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Digitale Medien

Hartshill rectangle: failure of spinal stabilisation in acute spinal cord injury (2000)

Ward, P. ; Harvey, A. R. ; Ramos, J. ; [weitere]

Springer

European spine journal 9 (2000), S. 152-155

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ISSN: 1432-0932

Schlagwort(e): Key words Hartshill rectangle ; Stabilisation ; Spinal cord injury ; Thoracolumbar spine

Quelle: Springer Online Journal Archives 1860-2000

Thema: Medizin

Notizen: Abstract A high rate of failure of the internal fixation of unstable spinal fractures in complete cord injured patients was noted in patients referred to the Salisbury Spinal Centre who had been stabilised with a Hartshill rectangle. This prompted a review of the operative notes, radiographs and clinical outcomes of all patients referred to the centre with a Hartshill rectangle in situ. All patients identified with a complete spinal cord injury and Hartshill rectangle were identified. Forty-three such patients referred from 13 different centres were found. Pre- and postoperative radiographs were assessed for fracture pattern and for spinal correction. Operative outcome in terms of pain and complications relating to surgery were identified. The most recent radiographs were assessed for signs of loss of reduction or stabilisation. Follow-up averaged 84 months (range 36–132 months). Of the 43 identified patients, 19 were found to have unsatisfactory stabilisation. Persistent pain, broken implants and worsening kyphosis were the main complications. The failure to use bone graft at the time of stabilisation was significantly (P 〈 0.001) related to risk of failure. The application and use of the Hartshill is not a technically challenging procedure; however, if the system is to be used, it must be used correctly. Failure to correctly apply the rectangle and to use bone graft will lead to an unacceptably high rate of failure.