Mathematical modeling of seismic and acousto-gravitational waves in a heterogeneous earth–atmosphere model

AbstractA numerical–analytical solution to problems of seismic and acoustic-gravitational wave propagation is applied to a heterogeneous Earth–Atmosphere model. The seismic wave propagation in an elastic half-space is described by a system of first order dynamic equations of the elasticity theory. The propagation of acoustic-gravitational waves in the atmosphere is described by the linearized Navier–Stokes equations. The algorithm proposed is based on the integral Laguerre transform with respect to time, the finite integral Bessel transform along the radial coordinate with a finite difference solution of the reduced problem along the vertical coordinate. The algorithm is numerically tested for the heterogeneous Earth–Atmosphere model for different source locations

Analysis of models of oil-by-water displacement through the microstructure

Two major arrangements describing the oil-by-water displacement process, i.e., Muskat’s model without taking into account the surface tension on the free boundary and the Buckley-Leverett model based on the surface tension, are considered. These arrangements were subject to theoretical and numerical study, which made it possible to uncover their self-contradictorines

Structure of (22\u3cem\u3eS\u3c/em\u3e)-3\u3cem\u3eβ\u3c/em\u3e-Acetoxy-20-(3-isopropylisoxazolin-5-yl)-4,4,14 \u3cem\u3eα\u3c/em\u3e-trimethylpregn-8(9)-ene

C32H51NO3, Mr = 497·7, orthorhombic, P212121, a = 7·577 (2), b = 10·510 (2), c = 35·399 (7) Å, V = 2819 (1) Å3, Z = 4, Dx = 1·173 g cm-3, λ (Mo Kα) = 0·71073 Å, μ = 0·69 cm-1, F(000) = 1096, T = 153 K, R = 0·0497 for 2235 observed reflections. The compound investigated is found to be a (22S)-epimer

Современный взгляд на патогенетические механизмы поражения суставов у больных иксодовым клещевым боррелиозом

The modern look at pathogenetic mechanisms of joint disease in patients with exodic tick-borne borreliosis is presented. The problems of etiology, pathogenesis, classifications, and morphological peculiarities of Lyme-arthritis and mechanisms of development of immune inflammation are considered.Представлен современный взгляд на патогенетические механизмы поражения суставов у больных иксодовым клещевым боррелиозом. Рассматриваются вопросы этиологии, патогенеза заболевания, классификация, морфологические особенности Лайм-артрита и механизмы развития иммунного воспаления

Analysis of the results of periodic medical examinations of workers engaged in fire andelectrolytic refining of copper

Among the surveyed smelters and caster with the experience of less than 10 years studiedproduction of persons with suspected occupational disease were not found. However, the number of workers from the MOC with the experience of more than 10 years, there have been a professionalhearing loss, chronic obstructive bronchitis,cataracts. Among the identifi ed chronic male workers MOC and TSEM leading positions belong to respiratory diseases, musculoskeletal system and connective tissue, digestive system, as well asthe organs of sight and hearingСреди обследованных плавильщиков и разливщиков со стажем менее 10 лет на изучаемых производствах лиц с подозрением на профессиональное заболевание не выявлялось. Вместе с тем из числа рабочих МПЦ со стажем более 10 лет имели место профессиональная тугоухость, хронический обструктивный бронхит, катаракта. В числе выявленных хронических заболеваний рабочих-мужчин МПЦ и ЦЭМ ведущие места принадлежат болезням органов дыхания, костно-мышечной системы и соединительной ткани, органов пищеварения, а также органов зрения и слух

Изменения гемоциркуляторных и респираторных функций при бронхиальной астме у детей

One hundred and fifty bronchial asthma patients aged 6 to 14 yrs were complexly examined for haemodynamic parameters in correlation with the lung function and the diaphragm activity in different stages of the disease. The respiratory dysfunction based on the bronchial obstruction, irregular lung ventilation and reduction in the diaphragm functional activity was shown to be accompanied by changes in the regional and central blood circulation. A consistency of these disorders depended on the basic therapyУ 150 больных бронхиальной астмой в возрасте от 6 до 14 лет проведено комплексное исследование параметров гемодинамики во взаимосвязи с оценкой функции внешнего дыхания и активности диафрагмы в различные периоды заболевания. Показано, что респираторная дисфункция, в основе которой лежат бронхиальная обструкция, неравномерная вентиляция легких и снижение функциональной активности диафрагмы, сочетается с изменениями регионарной и центральной гемоциркуляции. Причем стойкость отмеченных отклонений зависит от применения базисной терапии

Modern look at pathogenetic mechanisms of joint disease in patients with ixodic tick-borne borreliosis

The modern look at pathogenetic mechanisms of joint disease in patients with exodic tick-borne borreliosis is presented. The problems of etiology, pathogenesis, classifications, and morphological peculiarities of Lyme-arthritis and mechanisms of development of immune inflammation are considered

Analysis of models of oil-by-water displacement through the microstructure

Two major arrangements describing the oil-by-water displacement process, i.e., Muskat’s model without taking into account the surface tension on the free boundary and the Buckley-Leverett model based on the surface tension, are considered. These arrangements were subject to theoretical and numerical study, which made it possible to uncover their self-contradictorines