特发性正常颅压脑积水（idiopathic normal pressure hydrocephalus，INPH）是正常颅压脑积水的类型之一，其病因不明，目前对INPH的定义可概括为原因不明、以双下肢运动功能障碍、认知功能减退和尿失禁三联征为主要临床特点，影像学上...特发性正常颅压脑积水（idiopathic normal pressure hydrocephalus，INPH）是正常颅压脑积水的类型之一，其病因不明，目前对INPH的定义可概括为原因不明、以双下肢运动功能障碍、认知功能减退和尿失禁三联征为主要临床特点，影像学上表现为脑室扩大而脑脊液压力相对正常，经脑脊液分流后可以改善症状的综合征。患者侧脑室扩大且额角尤为明显，使大脑前动脉及其分支在胼胝体上方受到牵拉，导致该血管所支配的额区和旁中央小叶的血液供应障碍、间质水肿、皮质下白质受压，这些区域正是负责智能、下肢运动、排尿等功能的高级中枢，因此出现相应临床表现。展开更多
The hierarchies of the μ-Camassa–Holm,two-component μ-Camassa–Holm and μ-modified Camassa–Holm equations are constructed from bi-Hamiltonian structures of the Korteweg-de Vries equation,the Ito equation and the ...The hierarchies of the μ-Camassa–Holm,two-component μ-Camassa–Holm and μ-modified Camassa–Holm equations are constructed from bi-Hamiltonian structures of the Korteweg-de Vries equation,the Ito equation and the modified Korteweg-de Vries equation.The key Hamiltonian operator that includes μ is ■χμ−■^(3)χ,and the inner product used to define the Jacobi identity of the Hamiltonian operators is defined on the unit circle S^(1).展开更多
文摘特发性正常颅压脑积水（idiopathic normal pressure hydrocephalus，INPH）是正常颅压脑积水的类型之一，其病因不明，目前对INPH的定义可概括为原因不明、以双下肢运动功能障碍、认知功能减退和尿失禁三联征为主要临床特点，影像学上表现为脑室扩大而脑脊液压力相对正常，经脑脊液分流后可以改善症状的综合征。患者侧脑室扩大且额角尤为明显，使大脑前动脉及其分支在胼胝体上方受到牵拉，导致该血管所支配的额区和旁中央小叶的血液供应障碍、间质水肿、皮质下白质受压，这些区域正是负责智能、下肢运动、排尿等功能的高级中枢，因此出现相应临床表现。
基金Supported by the National Natural Science Foundation of China under Grant Nos 11271168 and 11371241, the Special Research Foundation for the Doctoral Program of Higher Education of China under Grant No 20113108110002, and the Project of First-Class Discipline of Universities in Shanghai.
基金Supported by the National Natural Science Foundation of China under No 11071157the Project of“The First-class Discipline of Universities in Shanghai”,and the SRF of the DPHE of China(No 20113108110002).
文摘The hierarchies of the μ-Camassa–Holm,two-component μ-Camassa–Holm and μ-modified Camassa–Holm equations are constructed from bi-Hamiltonian structures of the Korteweg-de Vries equation,the Ito equation and the modified Korteweg-de Vries equation.The key Hamiltonian operator that includes μ is ■χμ−■^(3)χ,and the inner product used to define the Jacobi identity of the Hamiltonian operators is defined on the unit circle S^(1).
