COLLABORATION WORK ON INTEGRATED PHYSICAL AND MATHEMATICAL MODEL OF OIL-GAS OUTPUT SYSTEM AS TECHNOLOGY OF ACTIVE LEARNING IN INSTITUTE OF PHYSICS AND TECHNOLOGY

Описана организация работы студенческой группы над коллективным проектом "Интегрированное газоконденсатное месторождение". Подобные проекты, по нашему мнению, повышают мотивацию и заинтересованность студентов, а также способствуют формированию у них навыков работы в коллективеIs described the organization of collaboration work in a student's group on collective project "Integrated gas-condensate field". Such projects raises, to our mind, interest by students, and promotes to form by those habits of collective wor

A New Nanoporous Material Based on Amorphous Silicon Dioxide

Processes for making nanoporous SiO2 layers on Si via the irradiation of thermally oxidized silicon wafers with fast ions followed by chemical treatment in a solution or vapor of hydrofluoric acid are presented. It is shown that the density, shape, diameter, and length to diameter ratio of channels etched in silicon dioxide can be controlled by varying the regimes of fast ion irradiation or chemical treatment of SiO2/Si structures. Track parameters calculated using the thermal spike model are compared with the chemical etching data

International Cooperation of Kazakhstan in the Prevention of Particularly Dangerous Infections

The dependence of the incidence of various nosologies on the epidemic situation in neighboring countries has been a feature of the epidemic process in recent years. In this regard, it is of particular importance to carry out joint anti-epidemic and preventive measures in border areas in order to prevent the importation of dangerous infections into the territory of neighboring states. The aim of the work was to analyze the results of international cooperation in the prevention of particularly dangerous infections. Presented are the areas of cooperation and outcomes of joint research activities. Measures for cooperation between the relevant institutions of the Ministry of Health of the Republic of Kazakhstan and the Rospotrebnadzor on the operational exchange of information in case of emergencies, joint research work on the monitoring of particularly dangerous and other natural-focal infectious diseases in the border areas, joint seminars, scientific and practical conferences on the introduction of modern methods of laboratory diagnostics into practice, internships on the exchange of experience in epizootiological survey in foci of particularly dangerous infections are described in the paper. Examples of Russian-Kazakh cooperation are provided. The results of a joint epizootiological survey of the territory of the Kazakh part of the Altai Mountains are presented. On a global scale, cases of plague and other particularly dangerous infections in any geographic region can constitute international public health emergencies and this type of threat requires international cooperation

Results of a Joint Epizootiological Survey of Transboundary Natural Plague Foci of the Russian Federation and Potentially Focal Territories of the Republic of Kazakhstan in 2019–2022

Consolidation of the efforts in implementation of epidemiological surveillance and control over plague and other dangerous natural-focal infections is an essential aspect in ensuring epidemiological well-being as regards particularly dangerous infectious diseases in the territory of natural plague foci and potentially focal territories located within the borders of the Russian Federation and the Republic of Kazakhstan. The aim of the work was to carry out a joint epizootiological survey of the transboundary territories of the Volga-Ural sandy natural plague focus and the territory of the East Kazakhstan region of the Republic of Kazakhstan (RK) potentially focal for plague over the period of 2019–2022. Materials and methods. Samples of field materials, collected during the epizootiological survey of the territory of Kazakhstan, were studied using bacteriological, molecular-genetic, and immune-serological methods. Results and discussion. We have obtained the current evidence on the spatial-biocenotic structure, the circulation of pathogens of dangerous natural-focal infectious diseases in the transboundary territories of Eastern and Western Kazakhstan. It has been established that the conditions that contribute to the possibility of human infection with plague and other dangerous infectious diseases in case of the aggravation of epizootic situation in the foci or importation of the pathogens into the territory are in place

A film model of sound propagation in gas-liquid foams : 2.The sound absorption

The concepts of the sound energy dissipation in gas-liquid foams are described within the framework of the film model of sound propagation. The high absorption of sound in foams is explained by hydrodynamic losses in foam films. The experimental dependence of the absorption coeficient on the foam expansion is explained. The calculated expansion corresponding to the absorption maximum is close to the experimental valueyesBelgorod State Universit

A film model of sound propagation in gas-liquid foams : 1.The sound velocity

A new (film) model is proposed for the propagation of sound vibrations in gas-liquid foams. The model explains the effect of sound retardation in foams and qualitatively agrees with the experimental data on the velocity of sound propagation in foams of various structuresyesBelgorod State Universit

A film model of sound propagation in gas-liquid foams : 2.The sound absorption

yesThe concepts of the sound energy dissipation in gas-liquid foams are described within the framework of the film model of sound propagation. The high absorption of sound in foams is explained by hydrodynamic losses in foam films. The experimental dependence of the absorption coeficient on the foam expansion is explained. The calculated expansion corresponding to the absorption maximum is close to the experimental valueBelgorod State Universit

A film model of sound propagation in gas-liquid foams : 1.The sound velocity

yesA new (film) model is proposed for the propagation of sound vibrations in gas-liquid foams. The model explains the effect of sound retardation in foams and qualitatively agrees with the experimental data on the velocity of sound propagation in foams of various structuresBelgorod State Universit

Anatomical and Clinical Rationale for Posterolateral Transfibular Approach for Internal Fixation of the Posterolateral Column of the Tibial Plateau

Purpose of the study — to provide an anatomical rationale and evaluate the clinical application of posterolateral surgical approach with osteotomy of the fibular head for internal fixation of the posterior aspect of the lateral tibial condyle. Material and Methods. Anatomical topography research was performed on 14 lower limbs of 8 fresh cadavers. In the first series of research L-shaped plate was fixed on the posterolateral surface of lateral tibial condyle from the examined approach, then preparation was performed and measuring of distances from various parts of the plates to the common peroneal nerve and anterior tibial artery. In the second series the authors prepared histological topograms by transverse sectioning of plastinated specimens from the knee joint area after implantation of L-shaped buttress plates. Prospective observation clinical study included 20 patients who underwent internal fixation with L-shaped buttress plate from the examined approach for fracture of the posterolateral column of the tibial plateau, type 41В by AO classification. KSS and Lysholm scales were used to evaluate treatment outcomes at days 7–10 and in 1, 3, 6 and 9 months postoperatively. Data of the anatomical and clinical research was compared. Results. Compliance with the technique of posterolateral transfibular surgical approach allows to avoid risk of injury to the common peroneal nerve and anterior tibial arthery which on the specimen were always located safely away from implanted plates. All 20 clinical cases demonstrated good visualization of bone fragments and articular surface of the tibial plateau which ensured reliable reduction and fixation by L-shaped buttress plate. KSS excellent and good outcome scores amounted to 50% and 45%, respectively, while satisfactory score was reported in 5% of cases; Lysholm scale demonstrated 55% of excellent outcomes, 45% of good outcomes, and 5% of satisfactory outcomes. Safety of the approach was verified: no injuries to large blood vessels or iatrogenic neuropathies were reported as well as no large hematomas or infectious complications of the surgical wound in early postoperative period. Conclusion. Results of the present study proved the feasibility and safety of the posterolateral transfibular surgical approach for internal fixation procedures in patients with intraarticular fractures of posterolateral column of the tibial plateau