The Meaning of the Pedagogical Impact of K. N. Igumnov on the Development of the Stability in Bachelors' Music Performing

При финансовой поддержке Российского гуманитарного научного фонда, проект № 08-06-14134

K. N. Igumnov: On the Work At the Sphere of Intonation and Phrasing in Music

При финансовой поддержке Российского гуманитарного научного фонда, проект № 08-06-14134

MODERNISED DESIGN OF A HYDROSTATIC DENSIMETER FOR MEASURING DENSITY OF HIGHLY VISCOUS OILS

Objectives. The aim of this work is to modernise a VT-KHTI densimeter operated by the method of hydrostatic weighing in order to study the density of highly viscous oils and oil products in the temperature range from 293 K to 473 K at atmospheric pressure.Method. Among the many methods for studying density, the following were used in the course of the study: the constant- and variable-volume piezometer method and the method of hydrostatic weighing.Results. The results of the densimetric study of highly viscous oils obtained from the Republic of Tatarstan in the temperature range from 293 K to 473 K at atmospheric pressure. The following grades are presented: Ashalchinskaya oil (super-viscous, SVO); Kuakbash oil (sulphur), Kichuy oil and Devon oil. Following an analysis and selection of methods for measuring density, a technique for error estimation and densimeter calibration is presented. A calculated expression for the hydrostatic weighing method, derived from the modernised hydrostatic densimeter design for measuring the density of highly viscous oils, is presented.Conclusion. The VT-KHTI densimeter for vacuum working fluids has been modernised and calibrated for research work on measuring the dynamic viscosity coefficient of both Newtonian and non-Newtonian liquids

CHANGES FACETS JOINTS IN TRAUMA AND DEGENERATIVE DISEASES OF THE LUMBAR SPINE

Produced spondilometric measurements of the lumbosacral spine is normal (20 cases) and in patients with spinal cord injury and degenerative-dystrophic diseases of the spine (43 cases). The width of the facet joint space joints on both sides, its relation to the longitudinal axis of the body in degrees and another on the same level were studied. The width of the facet joint space at the lumbosacral level of 3.5–4.0 mm, the area of the intervertebral foramen varies from 96–132 mm2. Among the changes in the parameters of the vertebral-motor segment can distinguish moderate, marked and significant extent that is important in determining the amount of the alleged operation

ALGORITHM OF DIAGNOSTICS AND SURGERY OF TRAUMA AND DEGENERATIVE DISEASES OF CERVICAL SPINE

A retrospective analysis of diagnostics and surgery in 240 patients was made. The vertebral spinal trauma took place in 168 patients (average age 31±5 years), degenerative dystrophic diseases of spine were in 72 patients (average age 52±7 years). The clinicodiagnostic complex included survey and functional radiography of the spine, magnetic resonance image and helical computer tomography of the spine with spondylometric measurements and color duplex scanning of the vertebral artery. Stabilization of the spine was performed in 137 (57%) cases. The variants were determined on the basis of predominate injury of 1 out of 3 supporting complexes. The rigid and dynamic methods and their combination were used for fixation of the spine. More favorable results were registered using dynamic fixation and the arthroplasty of intervertebral disks with nitinol constructions. An algorithm of radiodiagnostics and surgery methods were proposed

RATIO OF SURGICAL CORRECTION SPINAL CANAL WITH INJURIES AND DEGENERATIVE SPINE DISEASES

Ratio of surgical correction spinal canal during injury and illness was suggested. At SCT and MRI in the sagittal projection of the measured diameter of the cross-section of the spinal canal at the site of maximum narrowing (d2), in the overlying (d1) and underlying (d3) levels, we calculated the coefficient of stenosis (Kst): Kst = 1 – 2d22: (d12 + d32). After surgery, surgical correction factor was determined (KK): KK = 1 – Kst2: Kst1, where Kst1 – coefficient of stenosis before surgery, Kst2 – after the operation. Surgical correction was considered unsatisfactory by KK < 0,4