The aim of the research work is determination of the prospects for the use of a domestic agent for the prevention of adhesion formation in thoraco-abdominal surgery on the basis of experimental and morphological studies.
Research objectives were white outbred rats in the amount of 62 individuals, in two experimental studies on the abdominal and pleural cavities, in each series of experiments the studies were carried out in 2 comparative groups, control and main. Experiments on the formation of adhesions in the abdominal and pleural cavities were carried out on the basis of the Republican Specialized Scientific and Practical Medical Center of Surgery named after acad. V.Vakhidov in the Department of Experimental Surgery for the period from 2019 to 2020.
The scientific novelty of the research consists of the followings: it is proved according to the data of experimental research that when modeling the adhesion process in the abdominal cavity, the local application of an anti-adhesion coating made of cellulose derivatives reduces the processes of adhesiogenesis and the development of changes in architectonics, bends and narrowings of the intestinal lumen; it was found in an experimental study that when modeling the adhesion process in the chest cavity, the local use of an anti-adhesion implant provides a significant decrease in the risk of adhesiogenesis in the form of the formation of coarse adhesions or planar adhesions; it was determined that when blood serum was applied over a powder implant, the quality of adhesion and the uniformity of its distribution on the surface of the experimental defect of the peritoneum or lung did not change, but, in contrast to activation by blood (to ensure a hemostatic effect), it was not accompanied by the development of cellular inflammation due to the resorption of thrombotic masses; it was found that the formation of a gel film over the area of damage to the peritoneum in the absence of cellular elements of blood makes it possible to achieve biodegradation of the coating without a pronounced cellular-inflammatory reaction, providing cicatricial replacement of defects with a significant reduction in the risk of developing a massive adhesive process; the morphostructural features of the formation of the adhesive process when using an anti-adhesive coating, characterized by regression in the dynamics of the number of connective tissue cells of the inflammatory infiltrate with scarring of the defect zone without the development of adhesive conglomerates with the surrounding tissues, have been determined.
Introduction of the research results. According to the results of a scientific study on a comparative analysis of the use of a domestic agent for the prevention of adhesion formation in thoraco-abdominal surgery: methodological recommendations were developed: "New technologies for the prevention of adhesions in thoraco-abdominal surgery" (certificate of the Ministry of Health No. 08-09/10055 of August 12, 2021). The proposed recommendations for performing surgical interventions on the organs of the abdominal and thoracic cavities will allow for sparing local hemostasis, as well as prevent the formation of a coarse adhesive process in the abdominal cavity.
The obtained scientific results on a comparative analysis of the use of the domestic remedy for the prevention of adhesion formation in thoraco-abdominal surgery have been introduced into the practical activities of health care, including in the Republican Specialized Scientific and Practical Medical Center for Surgery named after V.I. Academician V. Vakhidov, surgical departments of the clinics of the Andijan and Samarkand State Medical Institutes (certificate of the Ministry of Health No. 08-09/10055 of August 12, 2021). Based on the proposed results of experimental studies, it was shown that the use of an anti-adhesive coating made of cellulose derivatives made it possible to reduce the risk of adhesion formation from 60% to 20%, bowel deformation without manifestations of obstruction from 33.3% to 13.3% and the possibility of acute adhesive intestinal obstruction from 6.7% to 0%.
Structure and scope of the dissertation. The dissertation consists of an introduction, four chapters, conclusions, practical recommendations and a list of cited literature. The volume of work is 113 pages.
In modern abdominal surgery, one of the current areas for research continues to be the improvement of various options for plastic surgery of postoperative hernias. More than 2,100,000 operations for ventral hernia are performed annually in the world, and 42% of them are postoperative hernias. In recent years, there has been a clear trend toward the expanded use of various types of biological meshes in hernioplasty. “A pooled analysis of seven PCSTAR studies for incisional hernias using retromuscular mesh showed a hernia recurrence rate of 5.7%”[1]. The use of standard surgical interventions such as alloplasty in the onlay position does not solve the problem of early postoperative complications: seroma discharge, mesh migration, adhesive disease, high frequency of hernia recurrence, etc. At the same time, hernia repair with local tissue creates the problem of increased intra-abdominal pressure and late complications in the form of recurrent hernias. “An increase in postoperative intra-abdominal pressure leads to multiple organ failure, then abdominal compartment syndrome, and even death.” [2]. Currently, there is no consensus on the surgical approach for giant postoperative abdominal wall hernias, and therefore the need to continue to develop new technologies and improve There is no doubt about the tactics. In world practice, at present, the most relevant studies continue to be studies aimed at studying the morphological and functional aspects of recurrent postoperative ventral hernias; electron microscopy reveals ultrastructural destructive changes in skin cells, aponeurosis and muscles, which indicates morphofunctional insufficiency of abdominal wall tissues; issues of cell engineering are discussed new innovative materials, experimental studies are being carried out on animals testing the biotechnical properties, texture and elasticity of new polymers, research is being conducted on open approaches with division of the posterior component with the release of the transverse abdominis muscle and a retrograde mesh, robotic operations have begun. Modern aspects of the development of domestic healthcare include many measures aimed at improving the results of treatment of patients with postoperative ventral hernias and associated pathological conditions through the introduction of modern principles of intensive care and surgical tactics. The development strategy of New Uzbekistan for 2022-2026 in seven priority areas includes tasks to improve the quality of provision of qualified medical services to the population[3]. The implementation of these tasks, including by optimizing tactical and technical approaches to the choice of hernioplasty method, as well as the development of methods for the prevention of purulent-inflammatory complications in the field of alloplastic material, is one of the current areas of abdominal surgery and medicine in general, due to the high medical and social the significance of this pathology.
This dissertation research to a certain extent serves to fulfill the tasks approved by the Decree of the President of the Republic of Uzbekistan “On comprehensive measures to radically improve the healthcare system of the Republic of Uzbekistan” No. UP-5590 dated December 17, 2018, the Resolutions of the President of the Republic of Uzbekistan “On measures to transform the surgical service, improving the quality and expanding the scale of surgical operations in the regions" for No. PP-5254 dated October 4, 2021 and "On additional measures to ensure public health by further increasing the efficiency of medical prevention work" for No. PP-4891 dated November 12, 2020, and as well as other regulatory documents adopted in this area. Compliance of the research with the priority directions of development of science and technology of the republic. The dissertation research was carried out in accordance with the priority direction of development of science and technology of the VI Republic “Medicine and Pharmacology”. Review of foreign scientific research on the topic of the dissertation.[4] Research work aimed at improving the quality of therapeutic and preventive care for patients with ventral hernias, carried out by many leading scientific centers and higher educational institutions in the world, including the Department of Surgical and Perioperative Sciences, Umeå University, Umeå (Sweden), Department of Surgery, Kingston General Hospital, 76 Stuart Street, Kingston (Sweden). nada), Department of Surgery, Helsinki University Hospital, Helsinki ( Finland), Service de chirurgie digestive et oncologique, CHU d'Amiens (France), Department of Biostatistics and Epidemiology, University of Oklahoma Health Sciences Center, Tulsa (USA), Department of Surgery, Howard University College of Medicine, Washington (USA) , Yong Loo Lin School of Medicine, National University of Singapore (Singapore), Department of Surgery, Michigan Medicine, Ann Arbor, MI, USA; University of Calgary, Calgary (Canada), Division of Plastic Surgery, Perelman School of Medicine at the University of Pennsylvania, University of Pennsylvania Health System, Philadelphia (USA), Brigham and Women's/Faulkner Hospital, Harvard Medical School, Boston (USA) , Department of Surgical Sciences, Uppsala University Hospital, Uppsala (Sweden), Department of Surgery, University of Texas Health Sciences Center at Houston, Houston (USA), Department of Surgery, Erasmus University Medical Center Rotterdam, Rotterdam (Netherlands), Department of Preventive Medicine and Public Health, Faculty of Medicine, Fukuoka University, Fukuoka (Japan), National Medical Research Center for Surgery named after A.V. Vishnevsky" (Russia), Republican Scientific Center for Emergency Medical Care (Uzbekistan), Tashkent Medical Academy (Uzbekistan), Republican Specialized Scientific and Practical Medical Center for Surgery named after Academician V. Vakhidov (Uzbekistan).
As a result of studies conducted around the world to increase the effectiveness of alloplasty for postoperative ventral hernias and reduce the risk of complications in the postoperative period, a number of scientific results were obtained, including: it was determined that patients who underwent reconstruction of the abdominal wall have an increased risk of postoperative respiratory failure, understanding the epidemiology of this complication can improve prevention (the Division of Plastic and Reconstructive Surgery, Department of Surgery, Oregon Health & Science University, USA); It has been proven that the larger the hernia, the higher the risk of early surgical complications, including such as respiratory decompensation, since hernias often increase in size over time, delaying surgery can lead to an increase in the size of the hernia and, therefore, a greater risk of complications (CentreforDigestiveDiseases, KarolinskaUniversityHospital, Stockholm, Sweden); it has been shown that the ratio of the hernia volume to the volume of the abdominal cavity <20% is an independent factor in tension-free closure, which justifies the interest in preoperative volumetry to adapt the tactics of surgical care (Servicedechirurgiegénérale, digestiveetendocrinienne, CHU LyonSud, HospicescivilsdeLyon, France); It has been determined that in patients undergoing elective laparoscopic hernia repair, predictors of mortality are older age and certain concomitant diseases: congestive heart failure, pulmonary circulatory disorders, coagulopathy, liver disease, metastatic cancer, neurological disorders and paralysis (Department of Surgery, College of Medicine, University of Oklahoma, Tulsa , USA); Older age, ascites, preoperative renal and pulmonary insufficiency have been found to be independent predictors of 30-day mortality, and in the presence of these risk factors, conservative treatment should be seriously considered (Department of Surgery, University of Kentucky College of Medicine, Lexington, USA); The American College of Surgeons (ACS) Universal Surgical Risk Calculator has been shown to accurately predict thirty-day outcomes, including major complications: venous thromboembolism, medical morbidity, surgical site infection, unplanned reoperation, mortality, and length of hospital stay (Department of Plastic Surgery, Brown University and Rhode Island Hospital, Providence, USA). At the present time in the world, the most relevant research in surgery continues to be the development of new methods of hernioplasty for large and giant ventral hernias, each of which has its own pros and cons depending on the complexity of implementation, the risk of postoperative complications and relapse, large randomized clinical trials are being conducted, comparing existing methods of traditional hernioplasty with laparoscopic access and robotic surgery, which has become increasingly widespread in the last 10 years, a search is being made for new synthetic and biological materials developed for the production and use of composite meshes that have the necessary strength and the ability to prevent fatal local complications in a contaminated environment. However, despite technical advances in this field, no modern hernia repair method or prosthesis meets all the requirements. One of the key problems is that existing synthetic endoprostheses do not have sufficient elasticity, resistance to infection, high mechanical strength and integrity over a long period of time. Further research into these clinical aspects will undoubtedly improve the current understanding of the capabilities of biocompatible endoprostheses and will make it possible to develop an optimal method for their placement during allohernioplasty. The degree of knowledge of the problem. The current period of development of abdominal surgery is characterized by an emphasis on the problems of the effectiveness of introducing new installation methods and techniques for attaching bioprostheses, options for various suture materials to determine the most promising directions for the development of these technologies [5]. Researchers led by BittnerR.[6] (2019) state that a giant postoperative abdominal wall hernia, the maximum diameter of which exceeds 12 cm or the ratio of the volume of the hernial sac to the abdominal cavity more than 20%, is difficult to treat, with a high recurrence rate and a large number of complications. One of the most challenging problems is that after the hernia contents return to the abdominal cavity, postoperative intra-abdominal pressure will increase, leading to multiple organ failure, then abdominal compartment syndrome (ACS), and even death. There is currently no agreement on the surgical approach for these giant incisional abdominal wall hernias. To prevent recurrences, some articles recommend placing the hernia mesh in the sublayer position and or linings (KirkpatrickAW.)[7]. According to CornetteB.[8], to prevent recurrence, it is recommended to place the hernia mesh in a sublayer or underlay position, and to achieve better mesh expansion, a component separation technique (CST) may be a suitable solution, but with a significant risk of complications and recurrence. JensenKK, et al. believe that truly successful giant hernia repair requires effective bridging or augmentation that will prevent recurrence with an acceptable risk of complications[9]. Another pressing issue in abdominal surgery is that patients with incisional hernias are extremely difficult to treat due to a number of factors including obesity, previous hernia repair, previous mesh placement, domain loss, and other variables.
The approach to patients with incisional hernias has changed significantly over the past 20 years due to both advances in mesh technology and surgical approaches. Key factors for successful outcome include modification of risk factors preoperatively, such as smoking cessation and weight loss, selection of mesh appropriate for the type of hernia and planned mesh location, and wide mesh coverage beyond the hernia defect. New techniques such as transabdominal muscle release and component separation with retrograde mesh placement and robotic approaches to abdominal wall hernia are increasingly being used in these patients[10]. Recent years have seen an increase in the number of biological meshes available for abdominal wall hernia repair. Biological meshes typically consist of materials obtained from humans, pigs, or cattle. The rationale for using biological meshes is that they can act as a scaffold for the growth of natural tissues. In addition, there are absorbable synthetic meshes that have properties similar to those of biological meshes, but with theoretically less risk because they are not derived from animal or human material. The choice of mesh for a ventral hernia depends on many factors, which include both the properties of the mesh and its location, for example, whether it should be placed intraperitoneally, preperitoneally, or retrorectus. BaierKF[11](2021) believes that the guiding principle should be to avoid placing uncoated polypropylene mesh in an intraperitoneal location where it may be in direct contact with internal organs. In addition, the type of hernia defect is another risk factor, such as whether the wound is clean or dirty, and whether the repair is performed with a bridge or abutment. Lightweight or biologic meshes to bridge the defect should be avoided due to increased recurrence rates. Holihan JL [12] (2016), Hodgkinson JD [13] (2018) believe that the principle of anatomical restoration to achieve a reliable, tension-free repair with reinforced mesh reduces the incidence of early postoperative complications and late recurrence of hernia compared with bridging mesh. The analysis of the literature concerning the theoretical aspects and clinical experience of using technologies for improving modern synthetic and biological prostheses that can provide a better plastic effect, as well as methods for preventing recurrence of ventral hernias, indicates that this is one of the priority areas in modern abdominal surgery. An unresolved issue remains the choice of the optimal endoprosthesis, which is highly effective and meets international standards for such properties as biological inertness and mechanical strength, as well as the method of positioning the mesh in relation to the layers of the abdominal wall. Considering that many of the allohernioplasty methods used today are not without drawbacks, the current direction is the development of new methods of repair for giant ventral hernias and methods for the prevention of postoperative complications in conditions of a contaminated wound, with justification of their effectiveness in a clinical experimental study. The connection between the dissertation research and the research plans of the research institution where the dissertation was completed. The dissertation research was carried out within the framework of the research work plan of the State Institution “RSNPMCH named after. acad. V. Vakhidov" under the project AL-422105574 "Development of new biocompatible mesh implants made of composite materials for reconstructive surgery of abdominal and diaphragmatic hernias" (2022-2024).
The purpose of the study is to improve the results of surgical treatment of large and giant postoperative ventral hernias by introducing new laser technologies and improving the tactical and technical aspects of surgical treatment. Objectives of the study: to study the structure of immediate complications after various types of prosthetic plastic surgery; to clarify the influence of obesity factors, primary or repeat hernioplasty on the incidence of immediate and long-term complications; to evaluate the role of the immediate complicated course of the postoperative period in the incidence of long-term complications of hernioplasty; to improve the technical aspects of alloplasty for large and giant postoperative ventral hernias (POVH); to improve the technique of photodynamic therapy (PDT) of the wound surface after prosthetic plastic surgery; to study in an experiment the effectiveness of using the proposed technique of alloplasty and PDT; evaluate the morphological features of the condition of tissues during prosthetic plastic surgery using the proposed method; in a comparative aspect, evaluate the clinical effectiveness of the proposed alloplasty options in the immediate and long-term periods. The object of the study was the results of allohernioplasty in 448 patients with extensive (large) and giant POVH, who were operated on at the surgical department of the 1st clinic of the Samarkand State Medical Institute in the period from 2012 to 2021, as well as experimental animals on which the effectiveness was assessed developed a technique for prosthetic repair of postoperative ventral hernias and applied the technique of photodynamic therapy.
The subject of the study is to analyze the effectiveness of the developed alloplasty of postoperative ventral hernias and intraoperative photodynamic therapy in abdominal surgery in experiments and in the clinic. Research methods. To achieve the goal of the study and solve the assigned problems, general clinical, instrumental, biotechnological, experimental, histomorphological, microbiological and statistical research methods were used. The scientific novelty of the study is as follows: it was established that the need for extensive tissue mobilization and, as a consequence, the intersection of lymphatic capillaries during implantation of the prosthesis in the onlay position, as well as the lack of sufficient resorption function of the hernial sac in the inlay position causes a high risk of the formation of clinically significant seromas; It was determined that with prosthetic hernioplasty, along with the volume of the defect, the type of plastic surgery and the degree of obesity, the most significant predictor of the risk of developing immediate complications is the factor of re-intervention in case of recurrent hernia with the presence of a “dormant infection” hidden in the remaining ligature granulomas or scar tissue; the structure and clinical features of the course of long-term complications of hernioplasty for giant and extensive hernias were clarified, taking into account the results of the immediate postoperative period, as well as the option of fixing the prosthesis, primary or repeated hernioplasty and the degree of obesity; the method of surgery for large hernias of the anterior abdominal wall has been improved, characterized by a combination of factors such as the formation of tension-free prosthetic repair, preservation of local resorptive function to prevent the development of fluid accumulations and reducing the risk of infection; the method of preventing the development or progression of wound infection during alloplasty of ventral hernias has been improved, aimed at enhancing the antibacterial effect and stimulating reparative activity through the photosensitizing and photodynamic effect of low-energy laser radiation; It was determined in an experimental model of prosthetic plastic surgery that the proposed method of fixing the prosthesis in combination with the use of the effect of photodynamic therapy through laser radiation helps to enhance reparative processes with a reduced risk of wound complications; It has been proven that all methods of antiseptic exposure and laser stimulation of the wound surface after prosthetic plastic surgery enhance preventive measures against the development of local infection, but are ineffective in the case of an already developed purulent-inflammatory process against the background of the use of alloplastic material. The practical results of the study are as follows: it has been determined that the implantation of synthetic materials for giant and extensive hernias is accompanied by a significant number of wound complications caused by both the surgical technique itself and the reaction of surrounding tissues to a foreign body, requiring improvement of tactical and technical approaches when performing hernioplasty; it was clarified that scar-degenerative changes in the tissues of the aponeurosis in giant and extensive hernias are a predisposing factor to the occurrence of post-prosthetic hernias, especially when implanting the prosthesis in the “inlay” position and, accordingly, require increasing the efficiency of their fixation and engraftment, as well as reducing the risk of developing local complications; it was determined based on the data of an experimental study that the proposed method of alloplasty for large ventral hernias makes it possible to achieve adequate reconstruction of the anterior abdominal wall, reduce the incidence of infection in the wound, and also use a smaller size of prosthetic material; it was determined that the proposed method of tension-free repair of large hernias of the anterior abdominal wall with strengthening of the aponeurosis with a mesh implant allows maintaining physiology, reducing the number of complications, shortening treatment time and reducing the risk of hernia recurrence; It has been determined that the proposed method for preventing the development or progression of wound infection during alloplasty of ventral hernias can reduce the frequency of suppuration, shorten the treatment time and the likelihood of relapse; It has been proven that the use of the proposed tactical and technical aspects of prosthetic repair for postoperative ventral hernias can reduce the incidence of specific complications, reduce rehabilitation time and the risk of hernia recurrence. Reliability of the research results. The reliability of the results is justified by the use of objective criteria for assessing the condition of patients, modern methods of diagnosis and treatment, the correct application of methodological approaches and sets of statistical analysis, methods for solving the problems discussed in the dissertation are based on modern scientific and practical concepts and approaches to the diagnosis and surgical treatment of patients with giant postoperative hernias. Scientific and practical significance of the research results. The results obtained make a significant contribution to the expansion of irradiation of existing ideas about the structure and clinical features of complications of hernioplasty for giant and extensive ventral hernias by identifying the morphological features of the development of a purulent-inflammatory process against the background of the use of alloplastic material, studying predictors of the risk of developing immediate complications, mechanisms for enhancing reparative processes through the use of an improved method of fixing the prosthesis in together using the effect of photodynamic therapy through laser radiation, which made it possible to enhance the antibacterial effect and improve the wound healing process. The practical significance of the study is that, based on the results obtained, the tactical and technical aspects of prosthetic hernioplasty have been optimized, the features of methods of antiseptic exposure and laser stimulation of the wound surface after prosthetic repair have been revealed, enhancing preventive measures for the development of local infection, and the method of surgery for large anterior abdominal hernias has been improved walls, characterized by a combination of factors such as the formation of tension-free prosthetic plasty, preservation of local resorptive function to prevent the development of fluid accumulations, thereby reducing the risk of developing postoperative complications, reducing the frequency of unsatisfactory results, length of hospitalization and the likelihood of relapse. Implementation of research results. According to the results of a scientific study to optimize the tactical and technical aspects of surgical treatment of large and giant postoperative ventral hernias: the “method for plastic surgery of giant hernias of the anterior abdominal wall” has been improved (invention patent No. IAP 2022 0148 dated April 18, 2022). The proposed method of tension-free repair of large hernias of the anterior abdominal wall with strengthening of the aponeurosis with a mesh implant made it possible to reduce the number of complications, shorten the treatment time and reduce the risk of hernia recurrence; the “method for preventing the progression of infection during alloplasty of infected hernias” has been improved (certificate of the Ministry of Health No. 08-32071 dated October 17, 2022). The proposed method made it possible to reduce the frequency of wound purulent-inflammatory complications and shorten the period of rehabilitation of patients after allohernioplasty; methodological recommendations “Tactical and technical aspects of prosthetic repair for large and giant postoperative ventral hernias” have been developed (certificate of the Ministry of Health No. 08-32071 dated October 17, 2022) . The developed recommendations made it possible to optimize the tactical and technical aspects of allohernioplasty in patients with large and giant postoperative ventral hernias; The scientific results obtained were introduced into the practical activities of healthcare, in particular, in the departments of surgery of the Khorezm and Andijan regional multidisciplinary medical centers, the clinic of the Samarkand State Medical University (certificate of the Ministry of Health No. 08-32071 dated October 17, 2022). Improving the tactical and technical aspects of prosthetic repair for postoperative ventral hernias has made it possible to reduce the incidence of specific immediate complications from 40.9% to 15.6%, to reduce rehabilitation time from 8.6±2.7 to 7.1±1.5 days, and also reduce the likelihood of long-term complications from 11.7% to 3.1%. Approbation of research results. The results of this study were discussed at 8 scientific and practical conferences, including 5 international and 3 republican ones. Publication of research results. 26 scientific works have been published on the topic of the dissertation, including 9 journal articles, 4 of which in republican and 5 in foreign journals recommended by the Higher Attestation Commission of the Republic of Uzbekistan for publication of the main scientific results of doctoral dissertations. Structure and scope of the dissertation. The dissertation consists of an introduction, seven chapters, a conclusion, conclusions, practical recommendations and a list of cited literature. The volume of work is 200 pages.
The aim of the research work is to improve the results of treatment of patients with combined injuries of the pelvis and femur, by developing tactical and technical aspects based on the severity of the injury and the severity of the condition.
The object of the study was 130 patients with injuries of the pelvic and hip bones with concomitant trauma, treated at the Republican Scientific Center for Emergency Medical Aid and its Samarkand branch for the period 2016-2021 years.
The scientific novelty of the research work is the following: the structure and frequency of combined injuries of the pelvis and femur in the general structure of injuries, in the structure of injuries to the pelvis and femur separately were evaluated. the risk factors for the development of unsatisfactory results of treatment of concomitant injuries of the pelvis and hip, based on traditional clinical and diagnostic standards, have been determined; a direct relationship has been proven in the dynamics of the condition of the victims and the prognosis, taking into account the type and nature of segmental injuries; the device for external fixation for stable functional minimally invasive osteosynthesis has been improved and the possibility of expanding the indications for surgical treatment for combined injuries of the pelvis and hip in the early period of traumatic disease has been proved; the technical advantages of a complete set of an improved rod device for external fixation have been proved, the pelvic and femoral versions of which make it possible to use them for effective stabilization of the pelvis and hip separately during anti-shock measures, and for the final reposition of bone fragments; the direct dependence of treatment results on the proposed tactics of providing trauma care at an early hospital stage, depending on the type, nature, severity of pelvic and hip injuries, and the severity of the condition has been proved.
The introduction of research results. Based on the results of scientific research to improve the surgical aspects of providing assistance to victims with concomitant injuries of the pelvis and femur: based on the results of the development of a device for the treatment of fractures, a patent for an invention was obtained from the Intellectual Property Agency of the Russian Federation "Apparatus for the treatment of combined fractures of the pelvic and hip bones" (patent No. 2749897 dated 06/18/2020). The results obtained made it possible to improve the tactics of surgical treatment of patients, to shorten the period of hospitalization and the period of postoperative rehabilitation, to ensure the possibility of patients with minimal economic costs; on the basis of the results of scientific research on the diagnosis and treatment of concomitant injuries of the pelvic and femur bones, methodological recommendations were approved "Method for the treatment of victims with concomitant injuries of the pelvis and hip, depending on the severity" (Conclusion of the Ministry of Health of the Republic of Uzbekistan No. 8 n-z / 288 dated August 31, 2021 of the year). The results obtained made it possible to improve the quality of wound diagnosis and rehabilitation of patients with injuries of the pelvic and hip bones in concomitant injury; approved methodological recommendations "Tactics of rendering assistance to victims with combined injuries of the pelvis and hip, taking into account the severity of the condition" (Conclusion of the Ministry of Health of the Republic of Uzbekistan No. 8 n-z / 288 of August 31, 2020). The results obtained made it possible to improve the tactical and technical aspects in the treatment of injuries to the pelvic and hip bones, based on the severity of the injury and the severity of the patient's condition.
Scientific results have been introduced into the practical activities of healthcare, in particular, the Samarkand branch of the Republican Specialized Scientific and Practical Medical Center of Traumatology and Orthopedics, the Jizzakh Branch of the Republican Scientific Center for Emergency Medical Aid, the Samarkand branch of the Republican Scientific Center for Emergency Medical Aid (certificate of the Ministry of Health No. 08-09 / 18979 dated December 02, 2021). The proposed tactics for the treatment of combined injuries of the pelvis and femur made it possible to reduce the incidence of postoperative complications of excellent and good long-term functional results from 66.1% to 92.6%.
The structure and scope of the dissertation. The dissertation consists of an introduction, five chapters, conclusions, practical recommendations, a list of referencesand applications. The volume of the text material of the work is 111 pages.
The aim of the research work is to improve the results of surgical treatment of chronic anterior-medial dislocations of the radial head in children based on the improvement of the method of surgical treatment.
The object of the study was 83 patients with chronic antero-medial dislocations of the head of the radius, treated in the department of the consequences of childhood injuries of the Samarkand branch of the RSSPMC of Traumatology and Orthopedics for the period 2017-2020. The scientific novelty of the research work is the following: it is proved by histological examination that, in case of injuries from up to 1 month ago, the anterior wall of the joint capsule is thin and elastic, which is easily stretched, and from 3 months ago, it thickens, scars and forms fibrous tissue; the possibility of using a fibrous-modified joint capsule for annular ligament plasty in the surgical treatment of chronic antero-medial dislocations of the radial head from 3 months ago was proved; the tactics of surgical treatment of chronic antero-medial dislocations of the head of the radius depending on the deformity of the bones of the forearm were determined; a direct relationship between the results of surgical treatment of chronic antero-medial dislocations of the head of the radius, depending on the duration of the injury, has been proven.
The introduction of research results. Based on the obtained scientific results on the optimization of surgical treatment of chronic antero-medial dislocations of the radial head in children:
based on the results of the development of a method for annular ligament plasty, a patent for an invention was obtained from the Intellectual Property Agency of the Russian Federation “A method for the surgical treatment of chronic anterior medial dislocation of the radial head in children by capsuloplasty according” (patent № 2749870 dated 06/17/2021). The results obtained made it possible to improve the results of surgical treatment, to reduce the period of penetration in the hospital and after the surgical rehabilitation period; based on the results of scientific research on the surgical treatment of chronic anterior medial dislocations of the radial head, the guidelines “Surgical treatment of chronic dislocations of the radial head in children” were approved (Conclusion of the Ministry of Health of the Republic of Uzbekistan 8 n-z / 81 dated February 21, 2022). The results obtained have improved the quality of early diagnosis and treatment of patients with chronic anterior medial dislocations of the radial head in children; based on the results of scientific research on the surgical treatment of chronic antero-medial dislocations of the head of the radius, the methodological recommendations “Conclusion of the Ministry of Health of the Republic of Uzbekistan 8 n-z / 289 of August 31, 2021” were approved. The results obtained have improved the quality of early diagnosis and treatment of patients with chronic anterior medial dislocations of the radial head in children;
Scientific results have been introduced into the practice of healthcare (Conclusion of the Ministry of Health 08-32955 of October 24, 2022), in particular, the Samarkand branch of the Republican Specialized Scientific and Practical Medical Center for Traumatology and Orthopedics, the Bukhara branch of the Republican Scientific Center for Emergency Medical Care, and the Samarkand Regional Children's Multidisciplinary Medical Center. The proposed method for the treatment of chronic anterior-medial dislocations of the radial head in children allowed to reduce the frequency of relapses, increase excellent and good results from 75.6% to 92.9%.
The structure and scope of the dissertation. The dissertation consists of an introduction, 5 chapters, conclusion, conclusions, practical recommendations, a list of references and applications. The volume of the dissertation is 109 pages.
At the time of integration in the field of education in the world, improving the quality of preschool education and organizing the system according to uniform standards is very important and much attention is paid to it. In the practice of developed countries, the issues of preparing a child for education and physical development have become the main object of leading higher education institutions and research centers, and international experiences are being popularized.
ВВЕДЕНИЕ 3
ГЛАВА I. ТЕОРЕТИЧЕСКИЕ ОСНОВЫ ОБУЧЕНИЯ
ПОСЛЕДОВАТЕЛЬНОЙ ПЕРЕВОДЧЕСКОЙ
ДЕЯТЕЛЬНОСТИ СТУДЕНТОВ ЯЗЫКОВЫХ ВУЗОВ 11
1.1. Различные подходы к трактовке перевода и особенности устного перевода 11
1.2. Лингвистические особенности текстов для обучения последовательной переводческой деятельности 26
1.3. Лингводидактические особенности развития компетенций последова-тельного переводчика и психолингвистические особенности последовате-льного перевода 38
Выводы по первой главе 55
ГЛАВА II. СОВРЕМЕННОЕ СОСТОЯНИЕ ОБУЧЕНИЯ
ПОСЛЕДОВАТЕЛЬНОЙ ПЕРЕВОДЧЕСКОЙ ДЕЯТЕЛЬНОСТИ СТУДЕНТОВ ЯЗЫКОВЫХ ВУЗОВ В РЕСПУБЛИКЕ УЗБЕКИСТАН..58
2.1. Анализ Государственного образовательного стандарта, учебных программ и учебников в плане исследуемой проблемы 58
2.2. Изучение, обобщение опыта обучения последовательному переводу студентов языковых вузов 66
2.3. Уровень владения навыками последовательного перевода студентами языковых вузов 71
2.4. Использование информационно-коммуникационных технологий в обучении последовательному переводу студентов языковых вузов и в совершенствовании комплекса упражнений для обучения последовательному переводу 85
Выводы по второй главе 117
ГЛАВА III. МЕТОДИКА ОБУЧЕНИЯ ПОСЛЕДОВАТЕЛЬНОМУ
ПЕРЕВОДУ СТУДЕНТОВ ЯЗЫКОВЫХ ВУЗОВ 119
3.1. Цель, задачи, организация и проведение экспериментального обучения 119
3.2. Качественный и количественный анализ результатов экспериментального обучения 128
3.3. Методические рекомендации по обучению последовательному переводу студентов языковых вузов с учетом критериев отбора текстов 137
Выводы по третьей главе 148
ЗАКЛЮЧЕНИЕ 149
СПИСОК ИСПОЛЬЗОВАННОЙ ЛИТЕРАТУРЫ 151
ПРИЛОЖЕНИЯ 167
ВВЕДЕНИЕ
Актуальность и востребованность темы диссертации. Потребность в практическом переводе растет в мире по мере углубления процесса глобализации и расширения межэтнических отношений. Понимание межъязыковой и межкультурной коммуникации в профессиональной подготовке переводчиков, анализ переводческой практики, разграничение жанровых особенностей, формирование и развитие переводческих способностей, расширение терминологии, анализ переводческих вмешательств, развитие профессиональных качеств, справка и комментарии к зарубежной специализированной литературе по переводу важно провести исследования для улучшения стандарта обучения.
В мире особое внимание уделяется углублению научных исследований на основе таких задач, как повышение качества перевода, развитие профессиональной этики, обучение за счет психофизиологических навыков, грамотное решение задач межкультурного общения, улучшение подготовки переводчиков в реальных ситуациях. В связи с этим формирование рефлексивных, коммуникативных, профессиональных, лингвистических, прагматических и межкультурных коммуникативных компетенций переводчиков при последовательномпереводе, анализ переводческой практики, расширение терминологии, выявление лексических, технических, психологических трудностей, а также двуязычия, многоязычия, коннотации, Приоритет отдается исследованиям трансформации, интерференции, эквивалентности, конвергенции, анализа (воображение) и синтеза (речь), формирования межъязыковой и межкультурной коммуникации, а также совершенствования жанровых и психолингвистических особенностей.
В нашей стране в результате реформ, основанных на развитии международных отношений, коренное реформирование системы образования, организация образовательного процесса в соответствии с общемировыми образовательными стандартами и национальными ценностями усиливает потребность в переводчиках. В Послании Президента Республики Олий Мажлису подчеркнуто: «Мы и в дальнейшем будем придавать приоритетное значение глубокому изучению английского и других иностранных языков. Вместе с тем наладим широкомасштабную работу по подготовке и повышению квалификации кадров по востребованным в нашей стране специальностям» [1]. При этом имеют важное значение лингводидактические особенности обучения последовательному переводу, составные и обоснованные характеристики компетенции переводчика относительно учебного процесса, авторская модель обучения, реализация обучения и интерактивных методов обучения с использованием общих, особенных и педагогических принципов, информационных технологий.
Данное диссертационное исследование в определенной степени служит реализации задач, обозначенных в Указе Президента Республики Узбекистан №УП-4947 от 7 февраля 2017 года «О Стратегии действий по дальнейшему развитию Республики Узбекистан» [2], в Указах Президента Республики Узбекистан №УП-5847 от 8 октября 2019 года «Об утверждении Концепции развития системы высшего образования Республики Узбекистан до 2030 года» [3], №УП-5763 от 11 июля 2019 года «О мерах по реформированию управления в сфере высшего и среднего специального образования» [4], в Постановлениях Президента Республики Узбекистан №ПП-2909 от 20 апреля 2017 года «О мерах по дальнейшему развитию системы высшего образования» [5], №ПП-3775 от 5 июня 2018 года “О дополнительных мерах по повышению качества образования в высших образовательных учреждениях и обеспечению их активного участия в осуществляемых в стране широкомасштабных реформах” [6], №УП-4391 от 11 июля 2019 года “О мерах по внедрению новых принципов управления в систему высшего и среднего специального образования” [7], в Постановлениях Кабинета Министров Республики Узбекистан №174 от 24 мая 2016 года "О мерах по закупке зарубежной учебной и научной литературы для системы высшего образования" [8], №816 от 10 октября 2018 год “Об обеспечении высших образовательных учреждений учебной литературой»[9], а также других нормативно-правовых актах, касающихся данной деятельности.
Соответствие исследования с приоритетными направлениями развития науки и технологий республики. Диссертация выполнена в рамках приоритетного направления развития науки и технологий Республики I.« Духовно-нравственное и культурное развитие демократического и правового общества, формирование инновационной экономики».
Степень изученности проблемы. Проблемами изучения перевода и преподавания перевода в Узбекистане занимались И.Гафуров, Ж.Шарипов, Н.Камбаров, Г.Саломов, О.Муминов, Э.Муратова, К.Мусаев, И.Тухтасинов, У.Йулдашев, Г.Ирмухамедова и другие ученые [92, 156, 110, 142, 46, 48, 134, 148, 108, 35].
Г.Бакиева, Л.Ахмедова, М.Джусупов, Д.Джуманова, Д.Хашимова, М.Ирискулов, Э.Эркаев, М.Назарова, Ф.Абдуллаева, Н.Бабаниязова [12, 80, 97, 96, 150, 107, 159, 50, 74, 82] и другие ученые проводили исследования в области методики обучения иностранным языкам.
Вопросы подготовки будущих переводчиков в странах СНГ изучали такие ученые, как Е.Аликина, Н.Гавриленко, А.Гребенщикова, Л.Бархударов, В.Сафонова, О.Максютина, И.Алексеева, С.Гураль, Б.Комиссаров [77, 90, 94, 84, 143, 124, 76, 95, 112].
Дж.Кэтфорд, Э.Найда, Дж.Ричардс, К.Бринклекс, С.Колина, Д.Жиль [19, 49, 58, 17, 22, 29] занимались обучением методам последовательного перевода в европейских странах.
Связь диссертационного исследования с планами научно-исследовательских работ высшего образовательного или научно-исследовательского учреждения, где выполнена диссертация. Исследование диссертации проводилось в рамках исследовательского проекта Узбекского государственного университета мировых языков «Исследования, научная и творческая работа среди докторантов, независимых исследователей и студентов».
Цель исследования состоит в выявлении лингводидактических особенностей обучения последовательному переводу студентов языковых вузов, а также разработка предложений и рекомендаций по совершенствованию методики обучения последовательному переводу с родного языка на английский и с английского на родной.
Задачи исследования:
изучить подходы к переводческому процессу и сравнить особенности последовательного и синхронного перевода через уровни процесса перевода;
определить лингводидактические особенности обучения последовательному переводу посредством изучения компетенций последовательного переводчика;
выявить психолингвистические особенности последовательного перевода и определить необходимые психофизиологические навыки студентов;
выявить и уточнить трудности, испытываемые переводчиком на каждом этапе процесса последовательного перевода;
определить критерии отбора текстов с учетом их лингвистических особенностей в обучении последовательному переводу;
организовать педагогические опытно-экспериментальные работы, провести их, разработать рекомендации по результатам исследования и усовершенствовать методику обучения последовательному переводу студентов языковых вузов.
В качестве объекта исследования обозначен процесс обучения последовательному переводу студентов языковых вузов, к опытно-экспериментальным работам привлечено 222 студента по направлению «Теория и практика перевода» Узбекского государственного университета мировых языков, Каракалпакского государственного университета им. Бердаха, Самаркандского государственного института иностранных языков.
Предмет исследования: лингводидактическое содержание, формы, средства обучения последовательному переводу студентов языковых вузов.
Методы исследования. В диссертации применен комплекс методов, направленных на обеспечение эффективного изучения: теоретические (аналитико-статистический, сравнительно-сопоставительный, аналогия, моделирование), диагностические (опросы, беседа, анкета, наблюдение, проектирующие методики), прогностические (экспертное оценивание, обобщение самостоятельных оценок), педагогический эксперимент и математические методы (статистическая обработка данных, графическое изображение результатов и другие).
Научная новизна исследования заключается в следующем:
общие, отличные (классификация, временной интервал, оборудование, переводческая деятельность, действия, коммуникация) и схожие (форма, усвоение, сопоставление, реальная коммуникация, общность навыков) особенности синхронного и последовательного перевода определены через уровни оценки качества перевода (микро-, мезо- и макроуровень);
своеобразные лингводидактические особенности обучения последовательному переводу (прагматические, лексико-семантические, коммуникативные, психофизиологические, социокультурные, технические) выявлены через развитие психофизиологических данных(громкость и четкость речи, устойчивость к стрессовым ситуациям, удерживание в оперативной памяти основного содержания фразы и др.) студентов;
лингвистические, психологические и технические трудности речевых навыков уточнены по ситуационным факторам через этапы последовательного перевода (начальный, ключевой, переходный, этап синтеза, итоговый);
на основе методики отбора целевых специальных текстов и ситуационного анализа усовершенствована методика обучения двустороннему последовательному переводу с родного языка на английский язык и с английского языка на родной язык.
Практические результаты исследования состоят из нижеследующего:
на основе психофизиологических особенностей последовательного переводчика усовершенствован комплекс упражнений с содержанием, ориентированным на последовательный перевод, а также критерии отбора специальных текстов;
разработан план тренинговых занятий для переводчиков с содержанием, ориентированным на последовательный перевод;
разработано методическое обеспечение обучения последовательному переводу гидов-переводчиков.
Достоверность результатов исследования определяется использованием результатов отечественных и зарубежных ученых и практиков в сфере педагогического образования и методологии теории познания; применением источников, соответствующих задачам исследования, взаимно дополняющих друг друга методов исследования; анализом опытно-экспериментальных работ и качественному и количественному обеспечению результатов исследования.
Научная и практическая значимость результатов исследования. Научная значимость результатов исследования состоит в описании психолингвистических особенностей последовательной переводческой деятельности и подходов к процессу перевода, критериев отбора текстов с учетом их лингвистических особенностей при обучении последовательному переводу, а также в изучении компетенций последовательного переводчика.
Практическая значимость исследования определяется тем, что при разработке учебников, учебных пособий, учебных программ в высших образовательных учреждениях можно использовать план тренинговых занятий для переводчиков с содержанием последовательного перевода, методическое обеспечение и комплекс упражнений по обучению последовательному переводу гидов-переводчиков.
Внедрение результатов исследования. На основе методических и практических предложений, разработанных по лингводидактическим особенностям обучения последовательному переводу студентов языковых вузов:
научные новшества, касающиеся общих, различных и аналогичных функций синхронного и последовательного перевода, были использованы при подготовке специальных материалов для обучения последовательному переводу гидов-переводчиков музея Олимпийской Славы (справка № 02-07-08-1926 Министерства физической культуры и спорта от 6 июля 2020 года). В результате разработана разработка тренингов по содержанию последовательного перевода для переводчиков, которая дает возможность более точно оценить качество перевода на микро-, мезо- и макроуровне и повысить качество последовательного перевода;
своеобразные лингводидактические особенности обучения последовательному переводу, выявленных на основе развития психофизиологических данных студентов использованы в практическом проекте А-1-209 «Создание учебников и учебных пособий на английском языке по теоретическим дисциплинам в магистратуре (английский язык) с точки зрения межкультурно-коммуникативного подхода и создание узбекско-англо-русского словаря лингвистических терминов» (справка № 89-03-4459 Министерства высшего и среднего специального образования от18 ноября 2019года). В результате возможности повышения качества перевода и его оценки были расширены за счет улучшения этапов процесса последовательного перевода;
ситуационные факторы лингвистических, психологических и технических трудностей речевых навыков, выявленные на этапах последовательного перевода 6.1. Совершенствование модуля современных тенденций в переводе и обучении (справка № 10-05/65 Республиканского научно-практического центра развития инновационных методик обучения иностранным языкам при Узбекском государственном университете мировых языков от 8 июня 2020 года). В результате, было обогащено содержание учебных курсов для учителей;
при подготовке материалов для методического обеспечения гидов- переводчиков и экскурсоводов использованы рекомендации по методике обучения двустороннему последовательному переводу с родного языка на английский и с английского на родной язык, усовершенствованные на основе методики выделения целевых специальных текстов и ситуационного анализа (справка № 02-22/7465 Государственного комитета Республики Узбекистан по развитию туризма от 11 октября 2019 года). В результате обогащено методическое обеспечение обучения гидов-переводчиков последовательному переводу, появилась возможность повысить профессиональную активность гидов-переводчиков и экскурсоводов.
Апробация результатов исследования. Результаты настоящего исследования обсуждались на 7 международных и 8 республиканских научно-практических конференциях.
Опубликованность результатов исследования. По теме диссертации всего опубликовано 23 научные работы, из них 8 статей в научных изданиях, рекомендованных Высшей аттестационной комиссией Республики Узбекистан для публикации основных научных достижений диссертации, из которых издано 7 - в республиканских, 1 - в зарубежных журналах.
Структура и объём диссертации. Диссертация состоит из введения, трёх глав, заключения, списка использованной литературы и приложений. Основной текст (объём) диссертации составляет 150 страниц.
ЗАКЛЮЧЕНИЕ
В результате исследований, проведённых по диссертации доктора философии (PhD) по педагогическим наукам на тему «Лингводидактические особенности обучения последовательному переводу студентов языковых вузов» представлены следующие выводы:
To improve the quality of education, the management process distance learning has been built systematically. The concept of a quality assessment system for distance learning presupposes the presence of diagnostic and evaluative procedures implemented by various subjects of state administration entity. It has been delegated separate powers to assess quality of education, as well as a set of organizational structures and normative legal materials ensuring the quality of education. As a rule, assessing tasks with the level of knowledge set quality control helps. It is designed and intended to provide feedback and collect basic information that will allow teachers to judge on the effectiveness of the distance learning process, as well as a system control needs to be developed. Taking into account the basic requirements in this system is imperative. Individuality, consistency, variety of forms and methods, comprehensiveness is considered as key factors. In addition, summative assessment should cover all passed material, objectivity, reliability, trustworthiness and validity.
The aim of the study is to improving the quality of treatment of ventral hernias in patients with morbid obesity by improving the tactical and technical aspects and optimizing the choice of hernioplasty method.
The object of the study were 121 patients with ventral hernias and morbid obesity who were hospitalized in the surgical department of the 1st clinic of the Samarkand State Medical University in the period from 2012 to 2021.
The scientific novelty of the study is as follows: a method was developed for preoperative preparation of patients with ventral hernia and morbid obesity using a modified pneumatic belt-bandage to adapt the cardiovascular and respiratory systems to intra-abdominal hypertension after hernioplasty; improved technical aspects of the reconstruction of the anterior abdominal wall in patients with morbid obesity; the surgical instrument "retractor" has been improved for technical optimization of the stage of suturing the anterior abdominal wall for fixing the prosthesis in patients with concomitant obesity and abdominal ptosis; clarified clinical and instrumental criteria for the specific unification of the scale for assessing the quality of life of patients after hernioplasty and abdominoplasty for ventral hernias and morbid obesity with differentiation of the value of physical, mental and social daily activity. The practical results of the study are as follows: According to the results of a scientific study to improve the diagnosis and surgical treatment of patients with ventral hernias and morbid obesity: improved "retractor". The use of the proposed tool made it possible to level the technical difficulties in fixing the prosthesis against the background of severe overweight with a reduction in the operation time; developed guidelines "Technical aspects of hernioplasty for ventral hernias in patients with morbid obesity" (certificate of the Ministry of Health 8n-r / 905 dated October 12, 2021), "Criteria for the choice of surgical treatment of patients with ventral hernias and obesity" (certificate of the Ministry of Health 8n-r /906 dated October 12, 2021). The proposed recommendations made it possible to optimize the choice of tactics for surgical treatment of patients with ventral hernias and morbid obesity; the obtained scientific results on improving the quality of diagnosis and surgical treatment of patients with ventral hernias and morbid obesity have been introduced into the practice of health care, in particular, in the departments of surgery of the 1st clinic of the Samarkand State Medical Institute, the Jizzakh Regional Multidisciplinary Medical Center and the Sh. Rashidov District Medical Association of the Jizzakh region (certificate of the Ministry of Health 8n-z / 368 dated October 22, 2021). The implementation of research results by improving the tactical and technical aspects of the surgical treatment of patients with ventral hernias and morbid obesity made it possible to reduce the overall incidence of postoperative complications from 14.8% to 8.9%, including wound complications from 11.1% to 4.5% and extra-abdominal from 7.4% to 4.5%, as well as significantly reduce the duration of surgical treatment and rehabilitation periods after various types of hernioplasty and abdominoplasty. The structure and scope of the dissertation. The dissertation consists of an introduction, five chapters, a conclusion, conclusions, practical recommendations and a list of cited literature. The volume of the text material is 107 pages.
At present, one of the urgent problems of law enforcement agencies is countering crimes in the field of information technology. Crimes of this category cannot be investigated fully and objectively without experts who have special knowledge in the field of computer technology. This is due to the fact that only expert research provides the results that have the greatest evidentiary value in studying of objects of computer expertise. This article discusses the main criteria for evaluating the expert's opinion and developed recommendations for independent evaluation of computer expertise by the investigator and the court. These recommendations can serve as the basis for effective analysis for subsequent recognition of evidence obtained as admissible and justified
Purpose of the study: to study the effect of the combination of valsartan and sacubitril on the indices of central hemodynamics in patients with coronary heart disease (CHD) within 2 years after revascularization. Material and research methods. The study included 320 patients with coronary artery disease who underwent coronary revascularization. All patients were divided into 2 groups: patients who received valsartan (group B, 160 people), patients who received ARNI - a combination of valsartan and sacubitrile molecules (group C, 160 people). At baseline and in dynamics after three months, at the end of the first and second years of follow-up after revascularization in patients with coronary artery disease systolic the blood pressure (SBP, mm Hg), diastolic blood pressure (DBP, mm Hg), heart rate in minute, the concentration of brain natriuretic peptide (BNP) in the blood were determined. Also, during echocardiography, the stroke volume of the heart, indexed to the body surface area (SI, ml / m2), the minute index (MI, ml / m2), the mean pressure in the pulmonary artery (PA, mm Hg) were determined. Research results. In the group of patients taking valsartan (group B), the relative dynamics of BNP concentration was -10.69 ± 0.55% by the 3rd month of observation, -21.24 ± 1.03% by the end of the 1st year, and -34, 39 ± 1.64% by the end of the 2nd year of observation. The inclusion of sacubitril in the therapy scheme contributed to a greater positive effect in reducing the BNP concentration: the relative dynamics of the BNP concentration was -10.30 ± 0.52% by the 3rd month of observation, - 21.91 ± 1.00% by the end of the first year of observation, and -39.28 ± 1.67% (p <0.05 significant difference with group B). By the end of the 1st and 2nd years of observation, the use of a combination of valsartan and sacubitril contributed to a more pronounced decrease in blood pressure (p <0.01), a more pronounced dynamics of MI (p <0.05) and a decrease in pressure in РA (significantly lower baseline indicators, p <0.05 and indicator in group B, p <0.01). Conclusion. The present study revealed a positive effect of revascularization and subsequent therapy of coronary artery disease with the inclusion of sacubitrile on the BNP concentration, blood pressure and mean pressure of pulmonary artery.
Objects of research: technologies of computer teaching, automated training-teaching systems, technological objects of complicated technological processes and productivity controlling.
Purpose of the work: principle, methods and ways of cognitive automated training teaching systems construction development with extended test control, analysis and information classification functions for training operating controlling staff of manufacturing enterprises with continuous technological processes, which help increase the efficiency of adaptation to students’ individual features and education standard requirements.
Methods of research: device of mathematic modeling processes and devices of chemical technological type, modern theory of automated controlling, principles and methods of cognitive engineering and statistic data processing.
The results obtained and their novelty: scientific novelty of the thesis results is that theoretical generalization and solution of important economic task development of scientific methodical training platform realizing typical ATLS with extended functions of test control on the subject “Automatization of manufacturing process”, and operators training technological processes and production is carried out.
Practical value: is that solution of considered task in the thesis allows develop and fulfill practical integration of ATLS meeting standard requirements for the wide types of processes in chemical, oil-processing, petrochemical spheres, mineral fertilizer production, construction materials industry and others.
Degree of embed and economic effectivity: results of the research arc used in: “Khimavtomatika”, Tashkent state technical university.
Field of application: Educational process in technical institutions and in industrial manufacture specialists training and qualification system.
The aim of the study is to development of an algorithm for managing pregnancy and childbirth by studying the functional state of the mother-placenta-fetus system in pregnant women who have undergone COVID-19 in different trimesters of pregnancy.
The object of the study was 105 pregnant women who, were treated at the Samarkand Regional Perinatal Center and a specialized maternity center for pregnant women with COVID-19
Тhe scientific novelty of the research consists of the followings: for the first time in pregnant women infected with COVID-19, a relationship was established between the course of pregnancy, childbirth, the postpartum period and the development of complications depending on the trimester and severity of the disease; a direct correlation has been established between the state of the vessels of the mother-placenta-fetus system (resistance and pulsation indices, Endothelin-1 indicators), disorders in the hemostasis system (D-dimer, platelet aggregation) and the clinical course of the disease in pregnant women who underwent COVID-19; it has been established for the first time that the developed scale for assessing risk factors for non-developing pregnancy in women infected with COVID-19 (age, BMI, obstetric history, gestation period, hemostasis system status, endothelial function and severity of the disease) can serve as a prognostic marker of the degree of risk of pregnancy complications; it was proved for the first time that the choice of effective therapy for restoring hemodynamics in the mother-placenta-fetus system, in women who underwent COVID-19 at different stages of pregnancy, leads to a decrease in the number of thrombophilic complications.
Implementation of the research results. The results of the scientific research were introduced into the practical activities of the Samarkand Regional Perinatal Center by Order No. 128/1 of 01.09.2022 and the Samarkand City Maternity Complex No. 1 by order No. 58/1 of 03.10.2022. In pregnant women who underwent COVID-19 at different periods of pregnancy, changes in the mother-placenta-fetus system were determined using simple and effective research methods, such as ultrasound and Dopplerography, and this saved 53,000 soums; obstetricians and gynecologists, as well as neonatologists and therapists, are needed to diagnose signs of complications in the echocartin, that is, it has been proven that there is no need for other highly qualified specialists for this, due to the lack of need to train new personnel, state budget funds have been saved. With early detection of disorders in the hemostasis system in pregnant women with COVID-19: the period of stay of patients in the hospital was reduced from 10.5 days to 7.5 days and the number of hospital bed days was reduced; due to the reduction of the period of stay in the hospital for several days, the number of necessary drugs was reduced (on average, drugs are used for 1 day in the amount of 130,000 soums). Examination of pregnant women infected with viral diseases using simple and effective research methods such as ultrasound and Dopplerography served to save 85,000 soums: in the early stages up to 16 (10-11 weeks. - fetometry), 19-21, 32-34, 38-40 weeks of pregnancy; due to the absence of the need to use other research methods, it was possible to reduce costs by 23.5%; early detection of changes in the hemostasis system and endothelial dysfunction using fast, budgetary and effective research methods, contributed to the prevention of possible pregnancy complications, as well as the absence of the need to use long-term and expensive research methods, and this saved 106 000 soums: the coagulogram was checked in 105 (100%) patients, time was saved and efficiency was increased; endothelin-1 was also determined in 105 (100%) patients, efficiency was increased by 78.6%.
Improving the functionality of blood circulation in the uteroplacental and fetal-placental systems, a comprehensive analysis of possible complications during pregnancy and childbirth in women who have had viral infections, improving diagnostic, preventive and prognostic measures for managing pregnancy and childbirth contributed to the birth of live, full-term and healthy newborns in women who experienced COVID-19 during pregnancy, as well as a decrease in maternal mortality and perinatal mortality, 43% of women underwent rehabilitation in the postpartum period, 23.8% of women who underwent severe COVID-19 improved their quality of life.
To introduce scientific novelty on the topic “The impact of COVID-19 on the state of hemodynamics in the mother-placenta-fetus system in pregnant women”, a letter was sent to the Ministry of Health from Samarkand State Medical University on November 9, 2022 under No. 4295 (Conclusion of the Ministry of Health No. 8 n-z / 679 of December 15, 2022).
The structure and volume of the dissertation. The content of the dissertation consists of an introduction, five chapters, conclusion, list of used references. The volume of the dissertation consists of 113 pages.
Борьба за определение мировой информационной повестки дня давно стала привычной чертой современных международных отношений. Распространяемые СМИ данные рейтинговых агентств, односторонняя интерпретация национальных экономических показателей часто выступают инструментами внешней политики мировых держав. Мировой медийный рынок по-прежнему не выглядит устойчивым. Какова роль СМИ в современном мире? Выполняют ли медиа сегодня роль посредника между государством и обществом? Превалирует ли бизнес в интересе над необходимостью объективного освещения событий? Способны ли СМИ контролировать достоверность информации? Каково значение профессиональной этики в современной журналистике? Существуют ли сегодня независимые СМИ? Могут ли журналисты быть объектами политических санкций?
Эти вопросы на сегодняшний день актуальны. Нужно успевать реагировать, анализировать эти вопросы.
Ҳаракатланаётган автомобиллар билан тўқнашувда турли хил жароҳат олган пиёдаболаларга оид 302 та ҳолат бўйича суд-тиббий экспертиза (СТЭ) натижалари ўрганилди. Энг кўп жароҳат олган болалар 8-10 ва 11-14 ёшдаги пиёда- болаларга тўғри келади (60%). Пиёда- болаларда қўшма бош мия жароҳати (ҚБМЖ) 90 тани ташкил этиб, шулардан 62 таси мия чайқалиши ва 28тасида турли даражали мия лати ҳамда бош асос ва гумбаз суяклари синиши қайд қилинди. 12 та ҳолатда пиёда болаларда гумбаз ва асос суяклари синишидан ташқари юз суяклари синишлари (ёноқ суяклари - 6, бурун суяклари - 4, пастки жаг - 2) кузатилди. Пиёда-болаларга етказилган жароҳатлар оғирлик даражалари бўйича: оғир тан жароҳатлари - 56, ўртача оғирликдаги -37, енгил, қисқа муддатли соғлиқнинг бузилишига олиб келган - 53, соғлиқнинг бузилишига олиб келмайдиган енгил тан жароҳат – 154 тани ташкил этди. Жароҳатларнинг оғирлик даражасини баҳолашда асосан ҳаёт учун хавфлилик ва соғлиқнинг бузилиши давомийлиги мезонлари қўлланилган.
Пиёда-болаларда нолетал ҳолатларда аниқланган ҚЖ ларнинг таркибида қайси соҳа жароҳатланишлари мазкур турдаги АТ ларга хослигини аниқлаш юзасидан ўтказилган корреляцион регрессияни таҳлилида коррекцион боғланиш даражаси (R) БМҚЖ лари ва оёққўл узун найсимон суякларидаги синишларда ишончлилик коэфициенти R-0,8 дан 1,0 гача қийматни ташкил этди ва айнан шу соҳа жароҳатлари шикастланиш механизмига ойдинлик киритиш мумкинлиги кўрсатилди.
Topicality and demand of the theme of dissertation. In world practice of informatization, systems of electronic document interchange (EDIS) arc considered and introduced last years not only as systems for automation of manage processes but also as high-grade platforms for creation of uniform information field, so borders of their use, certainly, expands and scientists of the world raises interest to them. In researches of leading scientists of infocommunication technologies the demand of problems of authentic gathering, transfer, analysis, coding of information during formation of office-work documents is allocated for getting of effective technologies raising mobility and productivity of EDIS.
Complex measures undertaken by the Government of Republic of Uzbekistan on development of systems of region-territorial automated management and to creation of uniform information field arc directed on wide introduction of information systems, EDIS, databases (DB) on the basis of modern information-communication technologies. In this connection, working out of new methods to intelligent processing of information resources used for improvement of data transfer quality, allowing effectively to find out and correct errors in structure of electronic document interchange with least material and time expenses, differs a special urgency and, at the same time, remains the unresolved theoretical and applied problem having important economic value.
Requirements to information resources and streams of data transmission as the important factor of efficiency and quality of EDIS functioning arc expressed in providing of stability, integrity, safety and authenticity of the information. One of important among factors is the criterion of authenticity of the information, caused by distortion of transferred messages in infocommunication networks because of failures and refusals of means, any handicaps in communication channels, errors of operators, scanning and recognition systems.
Hence, construction of effective systems to control of information authenticity during transfer and processing represents special scientific interest as priority technology of data processing, characteristic for conditions of automated management and electronic document interchange at the enterprises and organizations.
For existing methods, despite of providing the high level of information transfer authenticity, some unsolved questions is typical, and as basic of them it is possible to allocate the following: at development technologies of electronic documents interchange in structure of modern data transfer packages the significant volume of resource is spent for headings, at the same time the most part of information in headings remains constant from package to package during stream of transfer of the whole frame (redundancy of the information arising at it and mechanisms to provide reliability of deliveries consisting, basically, in sending the appropriate message and repeated transfer of packages, - result to additional time and material expenses while errors detection and elimination); code and hardware methods of information transfer control arc focused, mainly, on elimination the transposition mistakes in managing fields of packages; however, at data transfer there arc also distortions in information fields, which frequently reveal as multiple text mistakes.
In this relation, the decision of tasks for providing of information transfer authenticity is reasonable to consider in two aspects.
Solutions of the first type tasks should taken into account errors of the man-operator, scanning and other devices intended for input of the information. These kinds of mistakes make greatest volume of distortions in text and arise at Applied and Representation levels of OSI model (Open System Interconnection reference model).
Solutions of second type tasks, devoted to control of the information reliability, take into consideration the probability of distortions which occur at stages of Transport, Network, Physical and Line of model OSI.
Demand of the dissertation is characterized by the fact that introduction of a wide range of IP-enabled technologies in electronic document interchange is connected to requiring close attention tasks of detection and correction of errors during preparation and processing of documents.
This research work is focused on providing realization of laws of the Republic of Uzbekistan «On informatization», «On electronic digital signature», «On electronic document», «On electronic commerce», «On electronic payments», Decree of the Cabinet of Ministers of the Republic of Uzbekistan № 126 on 05.04.2011 «About measures on installation and use of a single secured e-mail and system of electronic document interchange in the executive office of cabinet of ministers, bodies of government and economic governance, local government».
Following that, the solution of listed tasks requires carrying out the special researches and development connected to creation of methods and algorithms, capable to control the information authenticity in structure of data transfer packages at the expense of use the enclosed redundancy, and able to function in transport environment, eliminating existing lacks. This fact causes necessity of allocation of a special class algorithms for providing of information authenticity on the basis of new type of PR-rcdundancy (property redundancy), defined by depending on properties of processed object.
Purpose of research is development ol constructive methods, models, algorithms and systems of information authenticity control during transfer and processing of the data on the basis of mechanisms used PR-rcdundancy of various nature, and software and algorithmic realization of results for developing technologies of electronic document interchange.
Scientific novelty of disscrtational research consists in the following:
concept, methodology and software and algorithmic bases to construction methods, models and algorithms for the information authenticity control in systems of electronic document interchange arc developed, classes of objects characterized by PR-rcdundancy, applied to provide accuracy, integrity, efficiency, compression, availability of information resources in EDIS arc allocated;
methods and algorithms arc offered for control of information reliability at the expense of use the artificial redundancy on the basis of linear, modular, plane summing mechanisms and definition of belonging to the coded subsets;
methods and software complexes arc developed for control of information reliability at the expense of use the natural redundancy on the basis of algorithms in which procedures of statistical, arithmetic, parsing coding, n-gram structured description, statistical pattern recognition and hashing of text elements arc realized;
for control and correction of spelling mistakes in texts on Uzbek language methods and algorithms arc offered on the basis of models of multilevel morphological analysis and n-grams Grammatik description;
on the basis of enclosed logic criteria, database and knowledgebase in structure of the built-in expert systems methods and algorithms arc developed for the control of information authenticity at the expense of use the structural-technological PR-rcdundancy;
methods arc offered to synthesis algorithms of text information reliability control in interactive system of errors detection and correction for developing technologies of electronic document interchange.
Conclusion
1. Developed in the dissertation constructive methods, models, software and algorithms complexes to control of information authenticity by principles of using of PR-rcdundancy on the basis of concepts of system analysis, control and information processing allow to increase efficiency and productivity of EDIS.
2. The estimation of current state of the theory and practice of code, hardware and program methods of control of authenticity information transfer had shown insufficiency of existing types of redundancy for providing qualitative functioning of EDIS. Principles of use of PR-rcdundancy at electronic documents for working out applied methods, software and algorithmic complexes to providing of information transfer authenticity have allowed to design toolkit of development of existing technologies.
3. Methods of: linear, plane and modular summation; codings by rules of Haffman, Lempcl-Ziv-Velch, Barrousc-Willcr, arithmetic coding, statistical recognition, logic control form methodical bases of use of PR-rcdundancy for expansion possibilities of algorithms and software complexes to providing of the information authenticity during drawing up, transfer and processing of electronic documents texts.
4. Efficiency of developed algorithms is shown and solutions arc got for tasks of control the information authenticity on the basis of criterion of mistakes undctccting probabilities. It is established, that they find up to 92 % of all kinds of mistakes, capable to correct single, double and adjacent transpositional mistakes, in comparison with existing methods reduce labour content and cost of control in 2-3 times if probability of mistakes is accepted as P«4-10-3, and also raise the information authenticity up to three orders.
5. To solving tasks of control and correction of spelling mistakes in Uzbek texts methods, algorithms and systems arc developed included morphological and n-gram structured models. The developed technique of getting frequency characteristics of n-gram on the basis of distortions probability parameters statistics arc applied during systematization hash-codes for parsing coding.
6. Interpolation and extrapolation methods of construction the logic and arithmetic function of statistical recognition arc used for working out algorithms to control of text elements images authenticity. Methods arc developed to control authenticity of alarm characteristics of text elements images in ncuronctworking system to information processing which includes parts of automatic recognition and control of images signals. Methods and algorithms arc realized in the structure system to control of information authenticity for eases when information in EDIS is represented as metatext on the basis of belonging attributes and classification of metatext on fuzzy semantic hypcrnct.
7. Methods and algorithms of the control of the information authenticity, based on methods of dictionary, statistical and hash-codings provide effective applying of the hardware-software environment of parallel computations NVIDIA with use of standard libraries of numerical analysis, optimized data exchange between CPU and GPU for optimization.
8. It is determined that at realization of the system to control of spelling on the basis of developed ways of description and identification of the software shell, treelike representation of n-gramm grammar and architecture of framework Sfinks-4 focused on various language models used PR-rcdundancy, the number of undetected errors and cost of realization considerably decreases, and labour content in comparison with the spelling control system on the basis of morphological analysis decreases twice.
9. Developed simulating algorithms, complexes of software and systems to control of information authenticity on the basis of using PR-rcdundancy have found practical application in systems of: automated organization of educational environment in high schools; adapted data transfer, processing and analysis in infocommunication networks; EDIS of enterprises.
10. The developed software complexes to control the information authenticity in structure of EDIS and computer system of adapted transfer, handling and data analysis arc implemented in real working conditions in the Samarkand branch «UzTelecom» of the State committee or communication, for informatization and telecommunication technologies of the Republic of Uzbekistan and in Joint Venture «Tasty-Fuit». Appropriate certificates confirm cost of economical efficiency of dissertation results.
The article outlines the evolutionary views of Uzbek ethnogenesis and ethnic history. Historical, ethnographical, archaeological, anthropological, linguistic scientific literature, their concepts and the methodology of historian scientists have not been studied in whole or in part on the ethnogenesis and ethnic history of the Uzbek people. This scientific article is a scientific research, which explores the topic in detail and encourages to the scientific reasoning and research. The article reflects monographs, articles, published in various publications and press releases of the Republic of Uzbekistan. Particularly, scientific researches conducted by historians such as A. Yu. Yakubovsky, S. Tolstov, A. A. Semeyonov, B. A. Litvinsky, K. Sh. Shoniyazov, A. Askarov, Rakhim Masov and others, their views and its basis were given in the article. During years of the independence, scientists have conducted scientific research on the ethnogenesis and ethnic history of the Uzbek people, its gradual intensification and prosperity. In the works of Jabborov new findings on ethnogenesis and ethnic history of the Uzbek people on the basis of written sources and partly archeological findings have been made. А. А. Askarov, T. K. Hodjaev and other’s works have studied not only ethnogenesis, but also ethnic history issues on the basis of archaeological and anthropological research. The research of Uzbek anthropologists enriched the ethnogenesis of Uzbeks and proved the truthfulness of the findings of historians, ethnographers and archeologists. This article demonstrates the objective approach in the coverage of the ethnogenesis of the Uzbek people can be clearly seen and their analysis is understandable.