Surgical treatment of patients with spinal neoplastic diseases

Catedra Ortopedie şi Traumatologie USMF „N. Testemiţanu”, Republica Moldova Catedra Hematologie, Oncologie USMF „N. Testemiţanu”, Republica Moldova Spitalul Clinic de Ortopedie si Traumatologie, Republica MoldovaSummary: Tumors of the spine is 4-7% of the musculoskeletal system tumors. This pathology bone oncology unlike somatic effect on children and young people under the age of 40 years and 50 years found in about 2.5-3% of the total number of cases of bone tumors. The diagnosis of vertebral tumors is difficult because of the emergence of late clinical manifestations. Surgical treatments for spinal tumor disease began to evolve relatively recently, along with modern techniques and methods of 3D CT imaging system development, anesthesiology and resuscitation, modern practical implementation of modern methods sitez, bioinert implants. Резюме: Опухоли позвоночника составляет 4-7% от опорно-двигательного аппарата новообразований. Эта патология костно онкология в отличие от соматической влияет на детей и молодых людей в возрасте до 40 лет и 50 лет обнаруживается примерно 2,5-3% от общего числа случаев опухолей костей. Диагноз позвоночных опухолей представляет трудности из-за появления поздних клинических проявлений. Хирургические методы лечения опухолевой болезни позвоночника стали развиваться сравнительно недавно наряду с современными техниками и методами визуализации системы КТ развитие 3D , анестезиологии и реаниматологии, современной практической реализации современных методов ситэз, биокосных имплантатов. Ключевые слова: опухоли позвоночника, опорно-двигательного аппарата, хирургическое лечение

Dissipation Length Scale Estimates for Turbulent Flows: A Wiener Algebra Approach

In this paper, a lower bound estimate on the uniform radius of spatial analyticity is established for solutions to the incompressible, forced Navier-Stokes system on an n-torus. This estimate matches previously known estimates provided that a certain bound on the initial data is satisfied. In particular, it is argued that for two-dimensional (2D) turbulent flows, the initial data is guaranteed to satisfy this hypothesized bound on a significant portion of the 2D global attractor, in which case, the estimate on the radius matches the best known one found in Kukavica (1998). A key feature in the approach taken here is the choice of the Wiener algebra as the phase space, i.e., the Banach algebra of functions with absolutely convergent Fourier series, whose structure is suitable for the use of the so-called Gevrey norms. We note that the method can also be applied with other phase spaces such as that of the functions with square-summable Fourier series, in which case the estimate on the radius matches that of Doering and Titi (1995). It can then similarly be shown that for three-dimensional (3D) turbulent flows, this estimate holds on a significant portion of the 3D weak attractor. © 2014 Springer Science+Business Media New York