This article presents a methodology for using selective exercises to improve the physical fitness of 13-15 year old schoolgirls in extracurricular activities.
Target. To develop recommendations for improving the physical fitness of schoolgirls aged 13-15 through the selective use of developmental and lead-up exercises in extracurricular activities.
Methods. The study used the analysis and synthesis of scientific and methodological literature and scientific articles on the research topic published in the periodical press; questioning; pedagogical testing; pedagogical experiment; methods of mathematical statistics for processing research results.
Results: a set of special exercises was developed for use in extracurricular activities, aimed at eliminating muscle tension, based on the state of physical fitness of schoolgirls.
Conclusions. It was revealed that the effectiveness of physical education classes at school depends on the assessment of the physical condition of schoolchildren, the form of such an assessment is a comprehensive monitoring, which includes the control of physical development and physical fitness, as well as an assessment of physical qualities (speed-strength strength, speed, flexibility, endurance , agility). Monitoring allows to determine the features of changes in the physical development and physical fitness of schoolchildren and, on the basis of this, to develop effective forms, methods and means of physical education.
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.
Topicality and demand of the theme of dissertation. One of the actual problems of modern physical chemistry and macromolecular chemistry is the study on the development of the fundamentals of synthesis of functional polymers with ion-exchange and complexing properties.
Anion exchange and complexing compounds based fibrous materials have a high specific surface area, which provides a high possibility of sorption and desorption processes. They arc especially effective in removing toxic substances, even at very low content of the latter from the air and water pollution. Of particular interest is the acrylic fiber "Nitron", which is produced by JSC "Navoiazot" (Uzbekistan).
In the Academy of Sciences of the Republic of Uzbekistan, Tashkent Institute of Textile and Light Industry conducted research on the development of fibrous ion exchange materials based on acrylic fiber "Nitron" but they have not been brought to its logical end. In addition, when these studies neglected the study of the physicochemical aspects of the preparation of these materials.
In developing the fundamentals of ion exchange materials obtaining a lot of attention paid to the study of physical and chemical aspects of the synthesis and properties of these high-molecular compounds. These studies due to the fact that they allow you to adjust the processes of synthesis and, therefore, necessary to obtain polymers with required composition and with complex specific properties.
As noted above, to date, no attention was paid to the study of the physicochemical foundations of anion exchangers and polycomplcxons, due to applied research conducted to date in this field of research. In this regard, the study of physical and chemical principles of bases of creation, and the properties of anion exchangers and polycomplcxons based on acrylic fiber "Nitron" arc actual both from a theoretical and practical point of view.
Demand perform of the dissertation is characterized by the fact that modern worldwide technology for extraction of non-ferrous and precious metals can not be realized without the use of ion-exchange materials. These techniques use mostly granular sorbents, while fibrous sorbents comprise just 2-3 % of the ion exchange materials used . Using technology employing ion exchange material from algae and natural brine deposits of oil and gas recovered to 90% of iodine and bromine, lodinc-containing sorbents arc used for disinfection of drinking water from microorganisms and extraction of mercury from wastewater and gas emissions. They can be used for concentrating the processing solutions and biologically active substances in the preparation of catalyst systems nanoparticles metals. It should also be noted that Uzbekistan hitherto not been established as industrial manufacture granular and fibrous sorbents, although such polymers arc widely used in industry.
The purpose of this study is to identify the physico- chemical characteristics of the formation and properties of anion exchangers polycomplcxons based on acrylic fiber " Nitron ".
Scientific novelty of disscrtational research consists in the following:
in the first time studied the kinetics of the interaction of acrylic fiber "Nitron" with nitrogen-containing bases in aqueous and organic media;
shown that due to the high surface area fibers arc modifiable , the reaction rate depends on the concentration of the nitrile groups of the polymer being in the solid surface;
proved previously identified mechanism of the catalytic action of small amounts of hydroxylaminc on the process of modifying of fiber " Nitron " with nitrogen-containing bases;
in the first lime developed a method for producing anion exchangers branched structure by sequential treatment of acrylic fiber " Nitron " with cthylcncdiaminc and dichlorocthanc;
found that the interaction of PAN - fibers with hcxamcthylcnc- and ethylene diamines formed anion exchange fibrous materials having in its composition as a weakly basic and strongly basic functional groups ;
in the first time obtained new polycomplcxons with ampholytic properties by reacting maleic anhydride with amine -modified polyacrylonitrile fiber " Nitron " or by hydrolysis of residual of the nitrile groups modified with diamines of acrylic fiber "Nitron";
established values of the thermodynamic equilibrium constants of adsorption of ions Cr (VI), Си (II), halogens, Arsenazo (III) by synthesized anion exchangers and polycomplcxons and alteration in thermodynamic functions of the process testify to high sorption capacity of these ion-exchange materials with respect to the sorption ions;
Conclusion
1. Values degree reaction of the nitrile group and a nitrogenous base, the activation energy of the process shows that the process of modifying fiber " Nitron " nitrogen-containing bases subject to the usual regularities observed in homogeneous reactions. This effect is due to a high fiber surface area to be modified, allowing the reactants to facilitate access to the nitrile groups of the polymer. (Physical chemistry, High molecular compounds).
2. Kinetic studies of the reaction of acrylic fiber " Nitron " with diamine (hexamethylene and ethylenediamine) showed that the change of physical and chemical parameters of the modification process can be controlled sorption properties, chemical resistance and the strength of the anion exchangers due to network structure of the polymer. It has been established that this modification "Nitron" produces strongly basic anion character especially in organic media. Strongly basic anion exchangers possibility of obtaining a high sorption capacity with graft polycthylcnpolyaminc chain reactions revealed in fiber modification "Nitron " ethylenediamine in the presence of dichloroethane. (High molecular compounds, Physical chemistry ).
3. IR - spectroscopic and analytical determination of the formation of intermediate amidoxime groups in the polymer chains and free hydroxylaminc after substitution reaction proved previously proposed mechanism of the catalytic action of hydroxylaminc on the process of chemical modification of acrylic fiber " Nitron " nitrogen-containing bases . ( Physical Chemistry).
4. Developed conditions of synthesis polycomplcxons reacting maleic anhydride with modified by hcxamcthylcncdiaminc acrylic fiber "Nitron" and with of hydrolysis of residual nitrile groups modified by hcxamcthylcnc- and cthylcncdiamin of acrylic fibers . (High molecular compounds, Physical Chemistry).
5. Alkalinity obtained anion exchange resins depends on the nature of their functional groups. Strongly basic anion exchangers have in their composition cyclic amidine groups and they arc formed by the reaction of polyacrylonitrile fiber with a diamine. The specific surface area obtained fibrous sorbents exceeds by two orders of known surface area granular ion exchange resins, and their crosslinking rate is up to 100 nodes per macromolecule polymer. ( Physical Chemistry )
6. Kinetics and thermodynamics of the sorption of various inorganic and organic ions obtained polycomplcxons sorbents showed that ions of Cr (VI), Arsenazo (111) can be sorbed strongly basic anion exchangers only, and the process of sorption of copper (II) with polycomplcxons occurs not only due to the ion exchange, but also due to chelation. ( Physical Chemistry ).
7. Developed the conditions obtaining bromide complexes of polymers and kinetics, thermodynamics of the sorption halogen anion in synthesized materials was studied. It is shown that the lower the stability of the ion [Bn]’ for ion [J3]'than the ability to form such molecular chlorine ions leads to the fact that almost no molecular chlorine is adsorption, and molecular bromine is absorbed to a lesser extent than the molecular iodine. (Physical Chemistry ).
8. Combined developed iodinated anion exchange materials based on acrylic fiber " Nitron " and chitosan. Insertion of the iodinc-containing chitosan materials, leads to an increase of absorbent capacity. Combined antibacterial dressings have a pronounced anti-inflammatory and antibacterial effect, arc effective for the treatment of necrotic soft tissue diseases. (High molecular compounds, Physical Chemistry).
In this article, the development of physical culture of students of higher educational institutions, the promotion of physical culture, physical education, fitness, physical maturity, physical development, health promotion, healthy lifestyle in order to become a healthy, well-rounded person in all aspects, along with showing the ways of education based on a new approach, the tasks of improving the environment in the society and raising the future generation, especially young people, to be healthy both mentally and physically were also mentioned. Taking into account the fact that human maturity takes place in the harmony of spiritual and physical essence, the results of this research serve to a certain extent to solve the tasks of developing the mental potential of society members as well as their physical culture.
A healthy lifestyle is the process of forming a person striving for maturity, able to overcome the most dangerous and harmful influences, factors affecting active work, strong physical and mental state. In order to conduct effective socio-political and spiritual and educational work among young people, trainings have been introduced in each educational institution aimed at increasing medical knowledge about a healthy lifestyle, personal hygiene, family spirituality, and the negative impact of harmful influences. Diseases from healthy childbirth. It plays an important role in shaping the principles of a healthy lifestyle in the minds of our youth.
This article scientifically examines the importance of healthy living in the development of society and the achievement of physical maturity.
A large role in maintaining and strengthening health, optimal body tone is played by rational motor activity, which for children and adolescents can be implemented at physical culture lessons in order to correctly form their motor skills and abilities, master the basic principles of improving physical qualities and educating the need for their implementation not only in physical education lessons, but also at home, in everyday life. Unfortunately, in recent years, students' interest in physical activity has been steadily declining. That is why this article substantiates the need to increase the motivational sphere among students for physical education.
Physical development is one of the main indicators of the health of the child population. Based on the results of studies of indicators of physical development, it is possible to obtain objective and reliable information about the state of health of children. If these studies are carried out in dynamics, then it is possible to make a scientifically grounded forecast regarding the state of health of children in the future.This information is of great scientific and practical importance for theoretical and practical medicine. The scientific significance of research devoted to the problem of physical development has especially increased in recent years. The fact is that the acceleration process, according to the literature of recent years, has significantly slowed down or even stopped. In this regard, it is necessary in new studies to clarify other aspects of this problem: Comprehensive study of the epidemiology of allergy in children. Clarification of the degree of influence of environmental factors on thephysical development and health of children.Social and hygienic living conditions have a significant impact on the indicators of physical development and health status of children.Determination of the relationship between the interdependence of physical development and functional reserves of the body. Elucidation of the nature of the influence of various diseases on the physical development and health of children.
The article provides information on modern approaches to the organization of physical education in educational institutions, the factors determining the impact of exercise in the process of pedagogical research, the state of physical culture in society, indicators and general physical fitness.
In this article, the physical development and physical fitness of young gymnasts at the initial training stage are covered by researches, which are related to their age-specific characteristics.
Exercise is a means of physical training of a person, the actions used in accordance with the laws of physical education. Exercise has historically been structured and stylistically shaped as gymnastics, play, sports and tourism. As a means of physical education, exercise involves the active movement activity of the practitioner. The specific features of exercise are expressed in the desire to form and improve actions, the idea of the purpose of the action and the means to achieve it, as well as the intention and willpower to perform the action.
The article considers the improvement of the composition of tools used in the process of physical education of students. In particular, in order to increase the interest of students in physical education, it is proposed to include the most popular physical exercises and sports groups in the traditionally used tools. Also, tourism has been known for a long time and has not lost its emotionality, attractiveness and financial possibilities for students as an effective means of physical education, and its use allows to increase motor activity and improve functional status.
Physical activity is defined as bodily movement, which allows any energy expenditure greater than resting levels. Regular practice generates gains in mental and physical health, so physically active people are more vigorous and willing to carry out their professional and daily activities, enhancing their interpersonal relationships. It is known that there is a low prevalence of healthy behaviors in relation to physical activity among health professionals. This is a literature review, added to a cross-sectional data collection through digital media with an anonymous form that does not require submission to the research ethics committee. The analysis of the data showed that 31.9% of the absolute population surveyed had some previous illness or was taking daily medication. Of these, 52.5% had psychiatric disorders, 20.7% respiratory diseases and 20.3% musculoskeletal diseases, which correlate directly with limiting factors for physical activity. The findings indicate that regular exercise is an ally in improving or maintaining various health indicators. For this reason, simple and inexpensive measures such as assessing the level of physical activity and monitoring these professionals reduces hospital absenteeism, increases personal performance and consequently improves the quality of the service provided to the population.
This article is about the methodology of improving physical qualities, changes in physical performance, the role of physical qualities in the life of a spiritually mature person, the effects of physical qualities on the body and the methods and analysis used in training.