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.
Mechanical ventilation might be a day to day existence saving clinical consideration used in kids in PICU. These basically wiped out kids are in some cases broadly examined in PICU. Chest actinism is partner degree indispensable examination in these patients before ventilation.We concentrated on the effect of starting chest actinism on a definitive result of broadcasted kids.Retrospective. Setting: Tertiary consideration showing hospital.One hundred and 41 children were encased inside the review. Beginning chest actinism of the relative multitude of broadcasted kids was assessed and result of those children was correspond with the underlying actinism at confirmation.
The article analyzes the features of videoconferencing as a form of mutual legal assistance in criminal cases and the need for its The article analyzes the features of videoconferencing as a form of mutual legal assistance in criminal cases and the need for its use. The author explores the international and national legal framework for using video conferencing tools as innovative technologies. As a result of the study, gaps in the legislation on the use of videoconferences in matters of international cooperation in criminal matters were identified. In addition, the experience, advantages and disadvantages of foreign countries in using this form of mutual legal assistance are considered, and the relevant practice is studied in detail. Current article is enriched with real life examples. As a result, the features of the use of videoconferencing in mutual legal assistance in criminal cases, as well as the consequences and conveniences of using these tools in pandemic situation were identified, and proposals were developed to amend the relevant legislationuse. The author explores the international and national legal framework for using video conferencing tools as innovative technologies. As a result of the study, gaps in the legislation on the use of videoconferences in matters of international cooperation in criminal matters were identified. In addition, the experience, advantages and disadvantages of foreign countries in using this form of mutual legal assistance are considered, and the relevant practice is studied in detail. Current article is enriched with real life examples. As a result, the features of the use of videoconferencing in mutual legal assistance in criminal cases, as well as the consequences and conveniences of using these tools in pandemic situation were identified, and proposals were developed to amend the relevant legislation
Today, as a result of the production activities of the State Unitary Enterprise "Tajik Aluminum Company" (TALCO SUE), the ecological situation in a large area is deteriorating, causing serious damage to the environment and human health. In particular, such a negative environmental situation can be observed in the deterioration of the natural environment of Sariosiyo, Uzun and Denau districts of Surkhandarya region. Based on the research, biochemical parameters of soil and wheat grains, including macro-and micronutrients, and quantitative indicators of carbohydrates were determined as a result of atmospheric pollution.
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 this article we are talking about competence - which is an integrated result of the interaction of several components: motivational - expressed in interest in activities and the presence of personal meanings for solving problems; target - associated with the ability to set personal goals, the ability to design actions and deeds; orientational - provides for accounting for external and internal levels of activity;functional - knowledge, skills, ways of working, information literacy are used to form their own models of actions and decision-making; control - the presence of accurate meters of activity and its results; evaluative - introspection and adequate assessment.
This article is devoted to the paradigm of the formation of lexical units with the help of conversion, the basis of which are words related to part of the verb speech in modern Chinese. Conversion in linguistics is a type of transposition. If the transposition is associated with a change in the lexical-morphological environment and, as a result, the paradigm of the inflection, previously not inherent in the lexical unit, arises, and other syntactic signs also appear, then this kind of transposition is usually called morphological transposition, that is, often referred to as conversion. Conversion is widespread in various languages of the world, and this phenomenon is interdependent on the following factors: a) what parts of speech this phenomenon relates to and what kind of derivation it refers to, b) which morphological paradigms are formed as a result of conversion. As a result of the conversion, words are formed that are similar in root, but different in relation to parts of speech. In many languages, issues related to semantic conversion models are still not fully researched. The article revealed six conversion models among words related to the speech part of a verb in modern Chinese, such as: [verb → noun], [verb → adjective], [verb → counting word], [verb → conjunction], [ verb → preposition] and [verb-noun-adverb]. In modern Chinese, in addition to substantiation, as one of the types of conversion, adverbization, verbalization and adjetivization are also widespread. Despite the widespread use of conversion, descriptions of this phenomenon in many scientific text-books and materials relating to the Chinese language, and studying the modern Chinese language in the framework of word formation, this phenomenon has not been studied in a separate foreshortening. Based on the research done, we can conclude that all types of conversions in the Chinese language contribute to the replenishment of the vocabulary of words and this phenomenon needs a separate study.
The article examines the issues of ensuring the admissibility of evidence obtained as a result of demonstration for recognition, examines a number of legal literature, opinions of experts in this field, and provides an in-depth analysis of these issues with problematic examples from the practice of judicial investigation. Based on the results of the analysis and research, advanced foreign experience was demonstrated on the admissibility of evi- dence obtained as a result of demonstration for recognition, and proposals and recommendations were developed on their further application in the criminal procedure legis- lation of the Republic of Uzbekistan.
Any time every one can feel how much stress they are under. Certainly, the demands of study, work, marriage, parenting, or any sudden and unpleasant situation can produce feelings of distress that detract from wellness. Even though we have all experienced stress, we may have questions about what it is. By some of the stress the ories, it is described as "the nonspecific response of the body to any demand made on it." As a result harmful, disagreeable stress calls distress. Distress that is not controlled can result in physical and emotional disruption, illness, and even death
At present, the cerebral circulation disorder is caused by various factors. According to the Ministry of Health of the Republic of Uzbekistan, 62876 cases of strokes were registered in Uzbekistan in 2019. 15% acquired lethal outcome, 10-15% returned to their previous state, 55 - 70% became disabled. Stroke is translated from the Latin language as a "stroke" which means an acute cerebral circulation disorder. Regardless of the cause of cerebral circulation disorder, the result is always the same - the death of brain neurons. The most common cause is atherosclerosis on the inner walls of blood vessels that supply the brain. They narrow the blood vessels and make them less flexible. In this case, the probability of clogging the blood vessels with blood clots increases, as a result, the blood vessels cannot supply blood to the brain.
It is known that for average physical activity, a person is recommended to consume food
products equal to 1200-1300 kJ of calories per night. 100 g of bread contains 1100-1300 kJ. The amount of food required for proper nutrition depends on people's age, gender, work activity and climatic conditions. In terms of nutritional value, flour and flour products rank high.
Year by year, the population's demand for high-quality flour products is increasing, and as a result, manufacturers are taking measures to further improve the quality of products. As a result, manufacturers require monitoring of product analysis with modern equipment and facilities. In addition, manufacturers
are constantly researching not only their own flour products, but also the products of enterprises that produce similar products.
There are concepts of society and the aesthetic culture of the individual. The aesthetic culture of a society is a set of material and spiritual values that humanity has accumulated throughout history. The aesthetic culture of the child's personality is also the result of his active assimilation of the material heritage of society. Aesthetic culture is constantly changing as a result of the interaction of a person with beauty, as well as the interaction of certain qualities of a person.
The main goal of the agrarian reform, which is being carried out in the agricultural sector, is the development of communication, the formation of mechanisms for the effective use of the land, which will determine the real ownership of the land. In the republic, the development of public transport, the economy of the industry, and the production and mental health of workers are carried out without the supervision of the state.
As a result of the promotion of farming activity, more than 160 thousand farms will be established in our country in the next few years, and today 10 thousand farms will provide effective service in Uzbekistan. As a result of the ongoing economic reforms, our country has experienced steady economic growth.
The article briefly highlights the history of the study of the health problem by Uzbek scientists in a certain period of time. The works of the authors are divided into groups based on their quality, nature and focus. Monographic and dissertation research is especially highlighted. Used methods of chronological and comparative analysis, particular attention is paid to the study of orientalists of Uzbekistan and publications of foreign authors. It is recognized that as a result of the implementation of the results of dissertation research by individual authors, there is an optimization of the structure of health care authorities and a decrease in the level of disease in the population.
Over the years of independence, a health care reform program has been implemented. Much has been done to improve its quality and culture of timeliness and efficiency. A network of urgent emergency care, rural medical outpatient clinics and city polyclinics, multidisciplinary specialized clinics, scientific centers has been created. Medical care for women and children of the country is provided at the level of world standards, personnel training is carried out in 14 medical universities and one pharmaceutical institute, in 85 medical colleges. Advanced training and retraining of medical personnel is carried out in universities and an advanced training institute.
At present, it is one of the most important branches of the country’s national economy. As a result of socio-economic and medical measures in Uzbekistan, medical care has become universal and publicly available, such dangerous diseases as cholera, plague, smallpox, parasitic typhus, trachoma have been eliminated, and the incidence of many others has been reduced. Over the past 10 years, the incidence of the population with such socially dangerous ailments as congenital defects by 32.4%, infectious diseases by 40%, the incidence of the upper respiratory tract has decreased by 4.2 times. The incidence of diphtheria, paratyphoid fever, poliomyelitis, malaria has been completely eradicated [1].
The health care system employs about 650 thousand people (this is almost 10 percent of the able-bodied population of the republic), including more than 84 thousand doctors and 500 thousand paramedical workers. An extensive network of medical institutions in Uzbekistan is capable of providing the necessary medical and preventive care to the entire population.