A Spin Glass Model with Vibrations of Crystal Lattices

With the help of the replica method and imaginary-time functional-integrate technique, the spin glass model with the vibrations of crystal lattices is investigated. In the limit of the replica symmetry and the imaginary-time static approximation, the magnetic and thermodynamic quantities have been obtained. By the numerical calculations, we found that the magnetization of the system has the typical spin-glass behaviour. A peak is found in the susceptibility-temperature curve and is shifted to lower temperature with increasing applied field. Due to the lattice contribution, the specific heat increases strongly at high temperature.“ Due to the magnetic contribution, the anomaly in the specific heat-temperature curve forms a λ-type peak, which agrees with the observation of Rojo et al. [Phys. Rev. B 66 (2002) 094406].     

后路椎管减压内固定术治疗胸腰椎骨折并截瘫

为探讨后路椎管减压内固定治疗胸腰椎骨折并载瘫的治疗效果,从2000年2月至2003年12月,共手术治疗胸腰椎骨折并截瘫病人63例:T112例,T1211例,L124例,L215例,L38例,L43例;压缩性骨折21例,爆裂性骨折9列,旋转骨折16例,剪力骨折(切片状骨折)7例,椎体后部骨折(Chace骨折)10例;完全性截瘫21例,不完全性截瘫42例;全部病人采用后路椎管减压手术,Luque棒19例,双Harrington 12例,椎弓根螺钉32例。结果表明,本组63例无一例加重症状,获得随访的有51例,随访时间半年至2年,不完全截瘫患者均有明显的好转。提示后路减压内固定治疗胸腰椎骨折并截瘫可取得满意的临床疗效,尽早手术及彻底减压与疗效密切相关。