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.
This study on adopting smart devices in teaching for the acquisition of 21st century employability skills by students in State Universities in Cameroon had as objective to find out the extent to which the use of smart devices in teaching can enhance the acquisition of 21st-century employability skills by students in state universities in Cameroon. Two research questions guided the study: - To what extent is the use of smart phones in teaching effective in enhancing the acquisition of 21st-century employability skills by students in State Universities in Cameroon? To what extent is the use of Laptops in teaching effective in enhancing the acquisition of 21st-century employability skills by students in State Universities in Cameroon? It was hypothesized that the use of smart devices in teaching does not significantly enhance students’ acquisition of 21st-century employability skills in state universities in Cameroon.The study based on Rogers’ (1962) diffusion of innovation theory, supposing that the adoption of a new idea, behaviour, or product does not happen simultaneously in a social system; rather, it is a process whereby some people are more apt to adopt the innovation than others and Davis (1986) technology acceptance model, which posits that the more a technology is perceived as useful and easy to use, its’ actual usage increases. The study adopted an exploratory sequential research design in a mixed-methods study. The accessible population consisted of 3666 teachers and final-year undergraduate students of eight state universities in Cameroon. Using Krejcie & Morgan (1970), 406 participants from professional faculties in five of the eight long existing state universities in Cameroon, were selected to make up the sample size, comprising 386 final-year undergraduate students, and 20 teachers. The stratified purposive sampling, and purposive sampling techniques were adopted for the study. Online Google forms alongside a paper questionnaire, and an interview guide were adopted as the study instruments. The quantitative data were analysed using SPSS version 25 with the aid of descriptive and inferential statistics. The Spearman rho test was used to test the hypotheses and Analysis of Variance (ANOVA) was used for regression analysis. The qualitative data were analysed thematically. The findings of the study showed that the use of smart phones and laptops in teaching had a significant, moderate, and positive impact on students’ acquisition of 21st-century employability skills (r- value = 0.418**, p-value 0.000< 0.05) in state universities in Cameroon. In conclusion, the findings of the study showed that smart devices do not only help students in information sourcing but enhanced their communication skills, critical thinking & problem solving skills, creativity and team working skills. Based on the findings of the study, it was recommended that the state should make teaching with smart devices a policy in state universities and university teachers should be encouraged to use of smart Phones and Laptops in teaching to enhance students’ acquisition of 21st century employability. It was also recommended that government should take appropriates measure to resolve the energy crisis, internet disruptions and training challenges both teachers and students are currently facing.
This study on adopting smart devices in teaching for the acquisition of 21st century employability skills by students in State Universities in Cameroon had as objective to find out the extent to which the use of smart devices in teaching can enhance the acquisition of 21st-century employability skills by students in state universities in Cameroon. Two research questions guided the study: - To what extent is the use of smart phones in teaching effective in enhancing the acquisition of 21st-century employability skills by students in State Universities in Cameroon? To what extent is the use of Laptops in teaching effective in enhancing the acquisition of 21st-century employability skills by students in State Universities in Cameroon? It was hypothesized that the use of smart devices in teaching does not significantly enhance students’ acquisition of 21st-century employability skills in state universities in Cameroon.The study based on Rogers’ (1962) diffusion of innovation theory, supposing that the adoption of a new idea, behaviour, or product does not happen simultaneously in a social system; rather, it is a process whereby some people are more apt to adopt the innovation than others and Davis (1986) technology acceptance model, which posits that the more a technology is perceived as useful and easy to use, its’ actual usage increases. The study adopted an exploratory sequential research design in a mixed-methods study. The accessible population consisted of 3666 teachers and final-year undergraduate students of eight state universities in Cameroon. Using Krejcie & Morgan (1970), 406 participants from professional faculties in five of the eight long existing state universities in Cameroon, were selected to make up the sample size, comprising 386 final-year undergraduate students, and 20 teachers. The stratified purposive sampling, and purposive sampling techniques were adopted for the study. Online Google forms alongside a paper questionnaire, and an interview guide were adopted as the study instruments. The quantitative data were analysed using SPSS version 25 with the aid of descriptive and inferential statistics. The Spearman rho test was used to test the hypotheses and Analysis of Variance (ANOVA) was used for regression analysis. The qualitative data were analysed thematically. The findings of the study showed that the use of smart phones and laptops in teaching had a significant, moderate, and positive impact on students’ acquisition of 21st-century employability skills (r- value = 0.418**, p-value 0.000< 0.05) in state universities in Cameroon. In conclusion, the findings of the study showed that smart devices do not only help students in information sourcing but enhanced their communication skills, critical thinking & problem solving skills, creativity and team working skills. Based on the findings of the study, it was recommended that the state should make teaching with smart devices a policy in state universities and university teachers should be encouraged to use of smart Phones and Laptops in teaching to enhance students’ acquisition of 21st century employability. It was also recommended that government should take appropriates measure to resolve the energy crisis, internet disruptions and training challenges both teachers and students are currently facing.
This study was designed to examine student records and the effective management of public secondary schools in the South West and Littoral Regions of Cameroon. The study was guided by two objectives which examine the impact of students’ admission files and students’ attendance registers on the effective management of secondary schools. This is supported by the system theory by Bertalanffy (1968) seeorganizations as interdependent and interrelated where there is constant interaction among the members of the organization may be very useful to this study. This theory is relevant to this study as it shows that students’ record keeping in relation to school management should not be treated as an independent aspect of school management but, it should be treated with needed attention to the overall management of the school system. The Triangulation research method specifically the descriptive survey design was adopted for the study. The instruments use for data collection were a questionnaire (closed ended questions) for academic staff (teachers) and an interview guide for administrators (principals and bursars). The sample for this study consisted of 302 teachers and 24 principals/bursar. The proportionate stratified sampling and purposive sampling techniques was adopted for the study. Data from close ended questions was analysed using SPSS 23.0, with the aid of descriptive and inferential statistical tools while the interview was analysed thematically. The Spearman’s rho was used to test the research hypotheses formulated for the study. Findings reviled that students’ admission files play a role on the effective management of secondary schools and that students’ attendance registers play a role on the effective management of secondary schools. Hypothetically, there is a positive significant, relationship between students’ records keeping and the effective management of secondary schools with (R-value =0.129*, p-value < .025 < 0.05). The positive sign of the correlation value implies that the management of students’ records will contribute to a certain extent in the effective management of secondary schools. Based on the findings of the study, it was recommended that students’ records especially admission files if completely compiled immediately at the beginning of the school year may be of great impact to the records management system of the school and effective management of the school.
This article is devoted to the study of Turkish phraseological units, special attention is paid to the study and analysis of phraseological units with the “baş” component. The main goal of the authors was to study somatic phraseological units, which include the “baş” component, study their semantics, and analyze their use in oral and written speech. To achieve this goal, the following tasks were identified: the study of the scientific literature on phraseological units; the study of scientific works devoted to somatic phraseological units of the Turkish language; finding sources related to the topic of the study, and collecting material; semantic analysis of somatic phraseological units with the “Baş” component; formulation of conclusions based on the results of the analysis. The article uses lexical-semantic and conceptual-analytical research methods. In the part of the article that illuminates the degree of knowledge of the topic, a comment is given to a number of noteworthy scientific papers. The article notes that language is a means of communication between members of society, serves a person as a means of helping to express their thoughts and inner experiences verbally and in writing, that each person, when presenting his thoughts, uses a number of ways to make his speech more beautiful and more informatively, that among these methods the use of phraseological units is the most effective. The authors emphasize that phraseological units enrich written and oral speech, and provide a more complete and clear presentation of thoughts. The article carried out a study of 217 phraseological units in which the “baş” component functions, shows the difference in their content, structure and composition, analyzes the most frequent phraseological units with the “baş” component used in oral and written Turkish speech. As a result of the analysis, a conclusion was made about the use of phraseological units with the “baş” component in various situations. Most of these phraseological units are used in a problem situation, the number of such phraseological units is 65. Along with this, the author notes the cases of using phraseological units with the “baş” component in the following situations: physical condition (29), mutual respect (17), in the process of excitement (14), and leadership and leadership (14).
Purpose of the study. To assess the effectiveness of the use of hemostatic agent "GEMOGUBKA" for the prevention of bleeding from the bed of the gallbladder during traditional cholecystectomy. Methods. The study included 88 patients operated for acute calculous cholecystitis. Depending on the method of bleeding hemostasis, all patients were divided into 2 groups: in the study group (n=43), after cholecystectomy, 250-300 mg of "GEMOGUBKA" in the form of a fine powder was applied to the gallbladder bed for hemostasis; in the control group (n=45), after cholecystectomy, hemostasis was carried out by electrocoagulation of the gallbladder bed with a monopolar electrode. All patients in the postoperative period underwent control-dynamic ultrasound examination, study of the volume and nature of the discharge from the drains, as well as a biochemical blood tests. Results. In the study group, the average duration of hemostasis with bleeding from the bladder bed was 2,3±1,3 minutes, which is almost 2 times less than in the control group - 4,2±1,5 minutes. The duration of bed-days after surgery was 4,5±0,78 days and 6,3±2,06 days, respectively. The duration of the presence of the drainage tubes in the abdominal cavity in the study group was 1,49±0,88 days, while in the control group it was 4,24±1,38 days. The dynamics of the manifestation of cytolytic syndrome showed a low degree of intraoperative aggression during hemostasis in the study group, which significantly differed from the high rates of cytolysis in the control group. In the study group of patients, it was possible to significantly reduce the proportion of serous-hemorrhagic and hemorrhagic discharge from the drainage tube in comparison with patients in the control group. Conclusion. The use of the biocomposition in the form of the hemostatic drug "GEMOGUBKA" allowed both to reduce the duration of bleeding from the bed of the gallbladder, and the incidence of local inflammatory complications of the surgical site during traditional cholecystectomy.
Botany, the scientific study of plants, plays a crucial role in understanding the complexities of the plant kingdom and its significance in various ecological, agricultural, and medicinal contexts. Traditional botany teaching methods often rely on lectures, laboratory experiments, and fieldwork to impart knowledge and skills to students. However, recent pedagogical advancements have emphasized the incorporation of non-standard study tasks to enhance learning outcomes and engage students in novel and interactive ways.
This article provides a comprehensive review of non-standard study tasks used in botany teaching, presenting a range of innovative approaches employed by educators and researchers around the world. The review encompasses both indoor and outdoor activities designed to promote active learning, critical thinking, and a deeper understanding of botanical concepts. Examples of non-standard study tasks include virtual plant simulations, digital herbariums, gamified learning platforms, interactive plant identification apps, and collaborative problem-solving exercises.
The article highlights the benefits of incorporating non-standard study tasks in botany education, such as improved student engagement, enhanced retention of knowledge, and the development of practical skills applicable to real-world scenarios. Additionally, it discusses potential challenges and limitations associated with implementing these alternative teaching methods, including technological requirements, resource availability, and the need for teacher training and support.
By exploring the diverse range of non-standard study tasks used in botany teaching, this review aims to inspire educators and researchers to adopt innovative approaches and adapt them to their specific educational contexts. It also emphasizes the importance of incorporating technology and hands-on experiences to foster a deeper appreciation and understanding of plants, ultimately nurturing the next generation of botanists, environmentalists, and plant scientists.
This study was designed to examine administrative change and the enhancement of relevance in state higher education system in Cameroon. The study was guided by two objectives which examine how change in administrative policy and administrative skills will enhance the relevance in state higher education system in Cameroon. This is supported by the theory of Fullan who state that that educational change is a process and to begin the change process you must be able to fully involve all human participants (stakeholders) in the change process for a better sustainability. This is supported by the theory of Fullan who state that that educational change is a process and to begin the change process you must be able to fully involve all human participants (stakeholders) in the change process for a better sustainability. The concurrent mixed-methods research design specifically the concurrent triangulation design was adopted for the study. Questionnaire and an interview guide were the instruments used for the study. The questionnaire consisted of both close and open ended questions for lecturers and post graduate students and interview guide for university administrators (HODs). The sample population for the study was made up of 1,915 lecturers, and 40 administrators (HODs) from the universities of Buea, Yaounde II, Douala, Bamenda, Yaounde I, Dschang, Maroua and Ngaoundere. The purposive and stratified sampling techniques was adopted for the study. Data from close ended questions was analysed using SPSS 23.0, with the aid of descriptive and inferential statistical tools while open ended questions were analysed thematically. The Spearman’s rho was used to test the research hypotheses formulated in the study. Majority of the lecturers (86.4%) agreed that there is a need for change in administrative policy to enhance relevance of Higher Education and a majority of the lecturers (71.3%) equally agreed that there is a need for change in administrative skills to enhance relevance of Higher Education. Hypothetically, there is a significant, positive and moderate relationship between administrative change and the enhancement of relevance in state Universities (R- value 0.207**, p-value < 0.001 < 0.05). Therefore, it was generally recommended that, for the enhancement of relevance in state higher education system in Cameroon orientation services should be organized before admission to enable student understand and make correct chooses. Specifically, in line with change in administrative policy most administrative posts should be elective for a given term of office in order to enable efficiency. Elective positions for HOD, Deans, Directors, Registrar and Vice Chancellors and in line with change in administrative skills, there should be innovation at the level of the administration by bringing in competent personal who will bring about the desired change to better enhance the relevant of HE.
The study aimed to determine the relationship between structural empowerment in its dimensions (material support, development opportunities, delegation of authority, authority) and adaptive performance in its dimensions (creative problem solving, dealing with uncertain situations, learning new skills and techniques, dealing with work pressures). Through the presence of cultural intelligence as an interactive variable with its dimensions (cognitive intelligence, metacognitive intelligence, motivational intelligence, behavioral intelligence) for workers in Karbala Governorate /local administration, to reach the goal of the study and test its hypotheses, a questionnaire form was prepared and adapted to suit the variables of the study and the place of application. The research sample consisted of (84) employees, depending on their work. The study data were analyzed using the statistical program SPSS.25. Cronbach’s alpha coefficient was used to test the validity and reliability. The PEARSON correlation coefficient was used to test the hypotheses, and structural equation modeling was used to test the interactive variable. The study proved a morally solid correlation between the study variables and the interactive variable and that working individuals have a high level of cultural intelligence that enables them to adapt to their jobs.
Based on the foregoing, it should be noted that the relevance of this study is determined by an in-depth study of the philosophical and scientific doctrine of the object and the current level of study of its social and ethical significance. Today, the study of Eastern philosophical thought, its unique undiscovered spiritual heritage, the study of valuable works left by our ancestors are relevant in all respects. In this regard, one of the most enlightened figures of the East, especially Central Asia, Abdurahmon Sayyoh Tashkendi, the work “Meyor ul-ahlak” and the study of social and moral considerations, the analytical study of the work as a source and its role in Eastern philosophy consists in identifying. “Meyor ul-ahlak” by Abdurahmon Sayyoh Tashkendi and the ideas presented in it are very interesting.
In general, the publication "Meyor ul-ahlak" was intended to simply and clearly highlight the topic of morality in the upbringing of Muslim children in the educational institutions of Turkestan. At a time when traditional textbooks on morality, created in the Middle Ages in local and large-scale Russian-speaking schools, were excluded from the curricula, the ideas put forward in them, as well as the Islamic tradition, there was among people a great needed for morality textbooks revised by local enlighteners in accordance with the requirements of the time.
Topicality and demand of the subject of dissertation. Various techniques of hybridization arc used in crop breeding, including cotton to produce a wide variability in agronomical valuable traits and develop new forms.
Regardless of its implementation hybridization process leads heredity decoding which allow the new plastic genotypes formation with an ability to change and adapt to the new conditions. Hybridization and selection arc considered as a main synthetic method of new varieties development and a success in this largely depends on the choice of crosses method and genotypes of initial forms. Therefore, there is given a special attention for studying the genetic basis and improving of hybridization methods. However, based on the most widely used of hybridization methods arc not always possible to develop varieties having high parameters of composite agronomical traits. Many developed varieties as a result of breeding methods arc genetically become homogeneous, which leads to a reduction of genetic variation and increasing of risk of cpiphytoty outbreaks and decreasing of total productivity (Boroycvich, 1981). Therefore, it is necessary to increase the genetic variability of crops’ agronomic traits by involving of original forms, as well as wild relatives of crops with genetic resistance to various stress factors, diseases and pests.
In increase cotton production through the creation of early maturing, high-yielding having good fiber yield and quality, resistant to various diseases, pests and stress factors, as well as with low level or toxic gossypol in cotton seeds still remain as critical problem in cotton production.
To overcome these problems there need to improving of genetic basis for assessment of existing donors and through the use of various hybridization methods to create new enriched genotypes, promoting positive recombination of polygene in hybrid’ organism for use in applied cotton breeding. Based on the above stated, the study of the genetic aspects of various methods of remote composite intraspecific and interspecific hybridization, based on the comparative evaluation of the effectiveness in order to isolate valuable recombinants and transgressive forms having new genetic variability of traits arc important both scientific and practical point of view.
The dissertation meets the objectives as set out in the Lows of Uzbekistan «On Seed Production» of December by 21, 2007 and «On Breeding achievements» by August 21, 2002 directed to developing and introduction of high-yielding cotton varieties, with a good yield and fiber quality, tolerance to various factors, as well as improving seed production.
Purpose of researches is comparative study of effectiveness of the various methods of intraspecific composite, convergent and inter-specific (3 to 5 species) hybridization revealing the nature of inheritance, form shaping and transgressive variation of traits, total and (+)-gossypol in creation of genetically enriched breeding material and for using in the applied cotton breeding.
Scientific novelty of the dissertation research is follows:
in the system of topcrosscs there used genetic evaluation for combining ability of main agronomic traits cotton varieties with different origins for further using in intraspecific composite and convergent hybridizations;
there established principally dominant inheritance and overdominance type of inheritance (with deviation toward the initial forms with the high agronomic traits) in F| at composite intra-and interspecific hybridization which genetically distinct accessions from the local and foreign selection and wide transgressive variability in F2-F3, facilitating to efficient selection of valuable recombinants;
first identified the inheritance nature and variability of total and (+)-gossypol in the cotton hybrids’ generative parts, developed by involving of American accessions with high (+)- gossypol and local varieties, as well as their correlation with some agronomical valuable traits;
first there held comparative study of economic traits at the different forms of amphidiploid G.thurheri x G.raimondii K-58 (hirsutum type) and K-59 (type harhadense) for free reproduction and after crossing the cultural forms of G.hirsutum L. species, it was established a wide range of variation of agronomic traits at mutant form of K-59 and composite hybrids, derived from it’s participation as compared to K-58 amphidiploid and it’s composite hybrids. It was found out those two types (type G.hirsutum K-58 and type G.harhadense K-59) of amphidiploid G.thurheri x G.raimondii at the free reproduction exhibits similarities with the both cultural tctraploid species; G.hirsutum L. and G.harhadense L., respectively. When they crossed with the cultivated G.hirsutum L. species these amphidiploid forms also behave as natural tctraploids;
it is revealed that, at the composite hybrids produced with the participation of the both forms of amphidiploid (K-58 and K-59) G.thurheri Tod. x G.raimondii Ulhr., as a result of transgressive variation, there is a disturbance of negative correlations between such traits as yield and fiber length, fineness and boll numbers conducive to positive recombinants emergence and increase donor opportunities of amphidiploids;
by comparative study of different methods of remote intra-and interspecific hybridization revealed the genetic nature of inheritance nature and variation degree of the main agronomic traits in composite hybrids, as well as their effectiveness in allocating recombinants having a new genetic variability of traits;
it is revealed that the possibility of breaking some negatively correlated traits by different methods of composite intra-and interspecific hybridization and selection of recombinants combining early maturity and high productivity, high fiber output with its quality and 1000 seed weight, etc.;
it is confirmed that the effectiveness of used methods such as a composite intraspecific and interspecific crosses, to increase positive transgressive variation and segregation genetically enriched recombinants having new combination of high levels of positive parameters of agronomic traits that were recommended and used to develop valuable initial material and new cotton varieties;
the obtained theoretical data on inheritance nature, hcritability and agronomic traits morphogenesis, levels of total and (+)-gossypol and their correlation with other agronomical valuable traits at developed hybrids could be successfully used in the field of fundamental research, and created unique hybrids, forms, progenies, lines and varieties could be used in applied cotton breeding.
Conclusion
1. There obtained and identified on comparative study base of intraspecific composed and converged hybrids with participation of six registered medium staple cotton cultivars in topcross system and high effects of GCA on the following traits:
«50%-cmcrgcncy-50 % flowering» Yulduz (-0.71); Tashkent-6 (-0.39) and in S-9070 (-0.38); “50% cmcrgcncy-50% maturing” S-9070 (-1.43), and in
Tashkent- 6 (-0.91); one boll weight S-6532 (+ 0.11); 1000 seeds weight S-9070 (+0.51); on productivity Tashkent-6 (+5,28), S-4911 (+4,04) and S-9070 (+2 24); fiber output S-6532 (+1,29); fiber length S-4911 (+0,70) and S-6532 (+0,48); fiber strength S-6532 (+1,57) and S-4911 (+0,91); micronairc S-6532 (+0,24) and Ak-Darya-6 (+0.24). These donors of high valuable traits were used by us for improving of the recurrent varieties by composite and convcrcgcnt hybridization. It was found that involvement of the varieties with a high GCA in convergent hybridization allows improving of the recurrent varieties and developing of a new initial material for cotton breeding:
inheritance nature and variability degree of agronomic traits at intraspecific composite and convergent cotton hybrids revealed the relative efficiency of the studied hybridization techniques during elaboration of new initial material with enriched genotypes of agronomic traits, and recommended to use in geneticselection process;
convergent hybrids F i dominated by early maturity, in terms of productivity and fiber output occurcd overall effect of overdominance, and F2-F3 appeared as positive transgressive forms;
significant effect of the genotype of the parental forms involved in hybridization on the inheritance nature of fiber quality (length, micronairc, strength) had convergent hybrids Fj, as well as their level of recombination in F2-F3 indicating the need for breeding of recombinants on these traits in early generations, taking into account genotype of initial forms;
the inheritance of the wilt tolcrancccs bccamcs not only depending on the pathogen load in soil fungus infections, but also depends on the used hybridization methods. Thus, most high resistance, i.c. negative superdominance on wilt tolerance observed in convergent hybrids F, and F2;
the direction and strength of correlation between the studied traits in intraspecific composite and convergent hybrids varied in depending on crosses type and from genotype of recurrent varieties. At present ease, the greatest number of recombinants with positive combination of high indicator traits which determining fiber quality, as well as its output, length, observed with with composite, particularly with convergent hybridization.
2. For the first time, on the basis of studies on determination the percentage of (+)- gossypol in seeds of genetically different cultivars of Uzbek cotton selection and analysis of variability, inheritance degree of total and (+)-gossypol in the environmentally and genetically remote hybrids and their correlations with economically valuable traits was proved:
the cultivars S-6524, S-6530 and S-6532 which were elaborated involving subspccic of G.ssp.punctatum had the highest level of (+)- gossypol and the «Turon» cultivar which was developed by composite hybridization has a low indicator of the current trait and relatively high level of total gossypol in seeds;
It was determined intermediate inheritance level of (+)- gossypol in the petals and seeds in F| hybrids and wide positive and negative transgressive variability in Ғ2-Ғ3. It was proved that the efficiency of plant selection with high (+)- gossypol in seeds since F2, that confirmed with segregation of constant progenies and lines on trait basis in F4 hybrids;
as a result of research the cross-correlation total and ( +)- gossypol and some agranomically valuable traits was found that between the ( +)- gossypol in the petals and seed exists a weak correlation. The data on correlations of studied traits showed an independent genetic control of (+)-gossypol in the generative organs and independent inheritance of them at cco- geographically and genetically remote hybridization.
3. For the first time, based on comparative study of agronomic traits of amphidiploid G.thurheri Tod. x G.raimondii Ulbr. two forms (hirsitum type -K-58 and harhadense type -K-59) and hybrids derived from G.hirsutum L. varieties revealed:
both studied forms of hirsutum type and harhadense type of amphidiploid G.thurheri Tod. x G.raimondii Ulbr., being functional diploids provided wide combinative variability in the progeny from the free reproduction and crossing with the cultivars of tetrapioid G.hirsutum L., and showed their similarity to G.hirsutum L. and G.harhadense L. tctraploid species, respectively;
as a result of the research a group of unique composite hybrids (F\G.thurherii Tod. x G.raimondii Ulbr.) x G.hirsutum L. confirmed unlimited transgressive variation as the basis of a new form revealing, new gene pool developing for use in applied cotton breeding. Herewith, at bud mutant K-59 observed emergence of phenotypes with higher variability for most agronomic traits compared to K-58;
it was found out that in composite hybrids which obtained by crossing of studied forms of G. thurberi Tod. x G. raimondii Ulbr. amphidiploids (2n=52) and with G.hirsutum L. cultivars were observed relatively rapid improvement on productivity and its components in comparison with freely propagated amphidiploids offspring. Herewith, composite hybrids involving K-58 on boll number in all generations was slower comparied to hybrids derived from K-59;
composite hybrids F, obtained involving two cultivars of cultivated forms on fiber output and length were observed deviation toward the parent with the best expression of the trait. It was revealed that the fiber output and length of the studied composite hybrids susceptible to less variability compared in terms productivity and its components. Relatively high variation was manifested on fiber output in F2, and on fiber length in F2-F3. In freely multiplying offspring of K-59 and its hybrids with varieties in F3 was observed the derivations of more long staple plants compared with hybrids, developed involving K- 58;
free propagating amphidiploids’ offsprings and composite hybrids selected by using of cultural forms showed the least wilt susceptibility compared with the control. Wilt resistance of barbadense type K-59 progenies from the free breeding was higher as compared than offspring of K-58, and higher in composite hybrids F2-F4, obtained involving K-59.
4. Under the general principle of correlation relationships among the studied hybrids were found that composite hybrids F2 amphidiploids’ G.thurberi Tod x G.raimondii Ulbr., both types (K-58 and K-59) with a G.hirsutum L. type Acala sj-5 cultivar showed mainly low positive and negative correlation coefficient values, which in most eases were none significant. In hybrid combination of K-58 x Andijan-60 fiber output and length correlated positively;
5. Based on comparative study of inheritance and variation of agronomic traits in developed 4 genomic [(G.thurberi Tod. X G.raimondii Ulbr.) X G.arhoreum L.] x G.hirsutum L., 5 - genome [(F|K-28 x S-6524 ) x G.harhadense L. hybrids and their backcross hybrids were proved:
the possibility of broad transgress variation and creation genetically enriched recombinants on unique traits;
efficiency of backcrosscs among the composite interspecific earlier generation hybrids for rapid improvement and stabilization of eultuvated forms of cotton;
wide transgress variability presence in 4 and 5 species composite hybrids and their backcross hybrids on productivity and its components starting with F|. In particular, it was confirmed the effectiveness of five species hybridization to increase the boll numbers per plant, boll weight and weight of 1000 seeds at 4 and 5 species and backcrosscs hybridization.
by obtaining recombinants having fiber output 43,1-45,0%, fiber length - 40 mm and above, micronairc of fiber 3.9-4.5 and wilt tolerance it was confirmed the effectiveness of introgressive and transgressive breeding at composite 4-5 species hybridization and their backcross hybrids.
6. As a result of studies of correlations in composite 4-5 species and backcrosscs hybridization of F2 hybrids it was revealed the effectiveness of used methods in interruption of such negatively correlated traits as «fiber output» and «fiber length» from medium positive (r=+0,39) up to high positive (r=+0,62), «fiber length» and «micronairc» -medium positive (r=+0,55), as well as «fiber length» and «fiber strength» -medium positive (r =+0,56 and r=+0.50).
7. Based on intraspecific composite and convergent, eco-geographically and genetically remote and 3-4-5 species and backcrosscs hybridizations were developed the following new breeding progenies, lines and varieties of upland cotton:
by composite and convergent hybridization way-L-7966, L-214/05; CC-896/05; CC-896/28; CC-991/05; CC-991/09; KC-1/05; КС-1/08; КС-1/18; KC-1/35; KC-1/51; KC-1/77, S-231-233/07, L-234-235/07, L-236-237/07, L-242-243/07, L-244-245/07, L-482-483/07, L-484-485/07, L-666-667/07, L-397-398/07, L-802-803/07, L-814-815/07, L-230/05;
cco- geographically and genetically distant hybridization - cultivar S-7300, S-7301, the progenies S-5344, S-5361. HPG-1;
composite 3 - specific hybridization -cultivar «Sulton», «Jarkurgan», S-7276, S-7277, as well as a number of lines;
8. Using the remote intra-and interspecific hybridization it was elaborated unique introgression hybrids, genetically enriched cotton recombinants, progenies, lines, and varieties «Sulton», «Jarkurgan», S-7276, S-7277, S-7300, S-7301 having positive combination of high agronomic traits. Cultivar «Sulton» was included in the State register from 2011 and for the period from 2008 up to 2014 it was sown on the area of over than 275,5 thousand hectares.
9. The following rcccomcndations were given for practize and future studies:
use of method convergent hybridization, allowing improving of agronomic valuable traits of recurrent parent and registered medium staple cotton cultivars and receiving a positive transgressive variability;
as an initial source in convergent crosses use cotton varieties with high General combination ability (GCA) on the following: on early maturity- Tashkent-6 and S-9070; boll weight - S-6532; weight of 1000 seeds S- 9070; on productivity -Tashkent-6, S-4911 and S-9070; fiber output -S-6532; fiber length - S-4911 and S-6532; fiber strength - S-6532 and S-4911; and for micronairc - S-6532 and Ak-Darya-6.
for use as an initial source in cotton genetics and breeding research such new cotton selection progenies as well as the lines: KS-1/05; K.S-1/08; K.S-1/18; KS-1/35; KS-1/51; and KS-1/77, L-7966, L-214/05, S-214/05, SS-896/05; SS-896/28; SS-991/05 and SS-991/09 with early maturity, productivity, wilt tolerance, fiber output and quality.
to use in cotton genetics and breeding researches both USA accessions BC3S,-47-8-l-17, BC3S|-l-3-6-15 with 95% of (+)-gossypol level in seeds and lines HPG-1 and others with 90% of (+)-gossypol level, as donors on this trait. Since 2012, developed and studied in the competitive variety testing of Institute the following lines: L-404-05 and L-6970 with high (+)- gossypol level were recommended for testing on ground control of the State Inspection Commission for Agriculture crops variety testing.
widespread use of various forms of synthetic tetrapioids G.thurheri Tod. x G.raimondii Ulbr., 4-5 species composite hybrids [(G. thurheri Tod. x G. raimondii Ulbr.) x G.arhoreum L.] x G.hirsutum L. and [(F t K- 28 x C-6524 ) x G.harhadense L., as well as their backcrosscs for achievement the broad transgress variation, elaboration genetically enriched recombinants on economically valuable traits and their use in practical cotton breeding;
to extend the areas in of early maturing commercialised cotton cultivar «Sulton» and perspective one «Jarkurgan» as well broad testing of such as new varieties S-7277, S-7300 and S-7301 in the republic.
This study was designed to examine planning of school meetings as a correlate to principals’ administrative effectiveness in secondary schools in the South West Region of Cameroon. The study was guided by two objectives which examine the relationship between planning school g meeting goals and principals’ administrative effectiveness and the benefits of planning school meetings on principals’ administrative effectiveness. This is supported by the goal setting theory. The descriptive survey research design was used for the study which allowed the researcher to utilize both qualitative and quantitative data. The population of the study comprises Secondary Schools in the South West Region of Cameroon. The target population constituted 192 secondary Schools; that is public, confessional and lay private secondary schools in Fako, Manyu Meme and Ndian division in the South West Region of Cameroon. The sample population for the study was made up of 132 principals. Both the stratified and purposive sampling technique was used for the study. The instrument use for data collection was a questionnaire (closed and open ended questions). Data from the close ended questions were analysed using SPSS 23.0, with the aid of descriptive and inferential statistical tools while open ended question were analysed thematically. The Spearman’s rho was used to test the research hypotheses formulated in the study. Majority 76.0% of principals accepted to carry out adequate planning of school meeting goals and a majority 81.1% of principals accepted that planning school meetings goal is of benefit to the principal. The hypothesis statistics showed that there is a significant, positive and moderate relationship between planning of school meetings by principals and administrative effectiveness (R-value=0.425**, p-value= 0.000< 0.05). The positive nature of correlation value implies that principals’ administrative effectiveness is more likely to increase when they adequately plan for school meetings. In addition to existing training programs of school principals, more programs should be redesigned to meet the needs of principals and to also train them on how to effectively plan and manage school meetings to foster trust and confidence of the society as well as administrative effectiveness.
This study investigated the effect of school Safety on Teachers’ Effectiveness in Government Primary Schools in Manyu Division, South West Region of Cameroon. The study sought to find out the extent to which School Safety affect Teachers’ Effectiveness in Government Primary Schools in Manyu Division. The methodology used in this study was the descriptive survey research design. The area of the study was Manyu Division, South West region of Cameroon. The target population of the study was all the teachers in Government Primary Schools in Manyu Division. The accessible population was teachers in 22 Government Primary Schools in Mamfe Central, Eyumojock and Upper Bayang Sub Divisions. The sample population was 114 teachers (22 head teachers and 92 teachers). Purposive sampling and convenience sampling techniques were used in the study. Questionnaire was used to collect data for teachers and constructed in a 4 responds likert scale. Interview guide was used for head teachers. Data was analysed using SPSS software and presented on tables. The hypothesis were tested using Pearson product moment correlation. The validity focused on face, content and construct. The reliability of the instrument was conducted using a pilot test of 15 teachers who were not part of the study. Findings revealed that school safety to a greater extent affects teachers’ effectiveness in government primary schools in Manyu Division. Finally, it was concluded that school safety has an effect on teachers’ effectiveness in government primary schools in Manyu Division. Based on the findings, it was recommended that the government and educational managers should encourage a school environment that is physically, cognitively and emotionally safe so that teachers can be effective.
Under our supervision, there were 92 patients with included and terminal defects of the dentition, who underwent prosthetics based on dental implants of the “DIO” system at the Department of Orthopedic Direction FPK TGSI Control group (13) of the patient, “manual toothbrush” - during the entire study period, patients used only a manual toothbrush to clean the crowns on implants; The second group (30) of patients who were prescribed a “manual toothbrush + interdental brush”, corresponding to the size of the proximal space of the orthopedic construction; The third group (49) of patients who were prescribed a “manual toothbrush + interdental brush + irrigator”, in addition to a manual toothbrush, were prescribed an interdental brush and an oral irrigator, an irrigator Waterpik WP-660 (Aquarius) was prescribed for the oral cavity after brushing teeth twice per day for 3-5 minutes, the power of the water jet of the irrigator corresponded to mode 2. An index assessment of the amount of plaque in the area of a fixed structure on implants was carried out using a simplified index of oral hygiene (IGR-U) (J. R. Vermillion, 1964) The condition of the gums in the area of dental implants was assessed based on the Gingival Index (GI) - Loe & Silness, 1963. Thus, at the beginning of the study in all three groups, the HI was low and corresponded to good implant hygiene. After 3 and 6 months, the values of those indices were significantly worse, and corresponded to the unsatisfactory hygiene of the implants. In groups 2 and 3, throughout the entire study, HI indices were optimal and corresponded to good and satisfactory implant hygiene. The indicators of the 3rd group, in which the whole complex of individual and professional methods was applied, were the most positive throughout the study, in comparison with other groups. Analysis of the results of the Gingival Index study showed that the indicator increased in all observation groups. In group 2 patients using manual dental and interdental brushes for cleaning the structure, by the end of the study period the index value increased to 0.95 ± 0.05 points, which corresponded to mild gingivitis of the gums in the area of implants, i.e. there was slight hyperemia and individual punctate bleeding of the gums at the probing sites. Patients of the 3rd group, using an irrigator, had minimal index values at all periods of the study, and the index values were interpreted as “normal gums”, that is, no signs of gingivitis were recorded.
The study of the issue of child socialization is one of the current problems of ethnology. Because through the upbringing of children, one can learn a lot about the lifestyle, spiritual outlook, psychological image and socio-economic history of the people. This article aims to study the features of child socialization in a modern Uzbek village on the example of a village. The information in the article was collected during the author's expeditions to the village of Mindon in 2012-2014.
Research methods: direct observation, in-depth interview-based interviews and questionnaires. Theoretically, it was based on T. Parsons' structural functional theory on the study of socialization [26, p.58.]. In this theory, the family is shown as the first major stage of socialization.
The study shows that the traditional method of upbringing in the family depends on the lifestyle of the people and is based on the experience of the people in child psychology, taking into account the mental and physical aspects of the mother from pregnancy to childbirth and adulthood.
The data presented in the study can be used to study the culture, ethnography, spiritual and moral characteristics of the Uzbek people and to theoretically enrich such areas as ethnopsychology, ethnopedagogy, gender socialization, sociology of education.
This study was designed to examine principals’ use of community financial resources and its impact on the management of secondary schools in Fako Division, South-West Region of Cameroon. The study was guided by two objectives which to investigate the impact of principals’ use of foreign aids and community/PTA levy and its impacts on the management of secondary schools. The survey research design particularly the cross-sectional survey design was used. This design was used because data were collected at once and not periodically as seen with longitudinal survey. The population of the study comprised of 8746 teachers and 1217 principals from secondary schools in the South West Region of Cameroon. The sample population for the study was made up of 426 teachers and 29 principals. The purposive and simple random sampling techniques was adopted for the study. The instruments use for data collection were a questionnaire (closed and open ended questions) for teachers and an interview guide for principals. Data from close ended questions was analysed using SPSS 23.0, with the aid of descriptive and inferential statistical tools while open ended questions were analysed thematically. The Pearson Product Moment Correlation was used to test the research hypotheses formulated in the study. The finding shows that with reference to foreign aids, 67.5% of teachers accepted that the principal makes use of foreign aids and with reference to community/PTA levy, 61.1% of teachers accepted that the principal makes use of community/PTA levy. Hypothetically, the result of the analysis revealed that the calculated Гxy -value 0.289 is higher than the critical Гxy -value 0.0978 at .05 level of significance and degrees of freedom 426. Furthermore, the p-value of 0.000 is less than 0.05. With the result of this analysis, the null hypothesis was rejected and the alternative hypothesis accepted. This result implies that the use of community financial resources by principals do have significant impact on the management of secondary schools although the impact is moderate. The positivity of the correlation value 0.289** implies that management of secondary schools is more likely to be enhance when principals adequately make use of community financial resources. Therefore, it is generally recommended that, that using community financial resources to pay part time teachers will help the school to attain it goals and objectives, community financial resources will greatly help the schools attain their goals and objectives since we hardly given sufficient finances for the running of the school.
In the textual studies of the peoples of the world, attention to the study of national literary heritage based on primary sources is growing stronger than ever. The study of manuscript sources makes it possible to restore the texts of the works of a poet or writer in accordance with the original (at least close to it), regardless of the period in which they lived. Without restoring a reliable text, the poet's work cannot be analyzed in terms of theoretical problems of literary studies. In world textology, research is being conducted on such scientific problems as comparative analysis of manuscript sources, creating a scientific biography of the creator, and studying the history of the text of an artistic work. Among them, a great deal of experience, knowledge and material has been collected within the framework of studying the sources of Eastern manuscripts spread throughout the world's libraries, including the works of Alisher Navoi and Babur, great figures of Turkish literature. Extensive research is the basis for the creation of the theoretical foundations of textual studies. Uzbek textology has progressed on the basis of existing scientific experiences and has achieved certain results in the study of classic literary sources. Researching the literary heritage of authors who have left a bright mark in the history of national literature, studying manuscript and lithographic sources based on the latest scientific achievements is one of the primary tasks of source studies and textual studies. After all, "...studying and promoting Uzbek classic and modern literature at the international level, analyzing this multifaceted topic in integral connection with the most important processes taking place in the world's literary space today, creating the necessary scientific - drawing practical conclusions is of great importance..." 1 . Accordingly, it becomes clear that it is urgent to carry out a scientific monographic study of the sources of the lyric divan of Khorezm literary environment representative Mutrib Khonakharob (1853-1923), study the textual history of the poet's works, and develop the principles of preparing a scientific and critical text. The study of Mutrib's work began during the poet's lifetime. Tabibiy recognizes the achievements of the poet in poetry and music in the collections "Majmuat ush-shuaroyi payravi Feruzshahi" and "Majmuat mukhammasot ush-shuaroyi Feruzshahi". "Biographies of poets and writers of Khiva" by Hasanmurad Laffasi, "Poets and singers of Khorezm" by Bobojon Tarroh, "Tazkirayi Qayyumiy" by Polatjon Qayyumiy also provide valuable information about the poet's work. O. Sharafiddinov, M. Yunusov, N.M. Mallayev, Yu. Yusupov, M. Pirnazarov, A. Abdugafurov published articles. These articles cover the biography of the poet, the ideological scope and artistry of his works, thematic and genre features of his literary heritage. But in most of them, the poet's works were interpreted under the influence of communist ideology. M. Pirnazarov studied manuscript and lithographic sources of Mutrib's lyrical heritage, subject scope, genre features, and artistic skills. Although this research provided valuable information for its time, problems such as creating a scientific biography of the poet, researching the author's works in the field of theoretical problems of textual studies, and creating a scientific-critical text are still waiting to be solved. In studying the poet's literary heritage, the book "Mutrib Khonaharobi (Ref. Collection)" is noteworthy. However, besides the fact that the text of these poems is not complete, there are also errors in the reading of words. In this tutorial, the manuscripts numbered 906/VII, 903/IV, 2679/II of the Department of Muhammad Hasan Mutrib kept in the main and H. Sulayman funds of the Academy of Sciences of the Republic of Uzbekistan, as well as Turkish manuscripts in bayoz, complex and tazkira poems, information about the poems in manuscript bayoz kept in Khiva Ichonqala Muhammad Rahimkhan Feruz II Museum.