To assess the clinical efficacy of the SRK II formula with a correction factor Rm in children with congenital cataracts who are at risk of pseudophakic myopia. Material and methods. A complex examination of 48 children (86 eyes) with congenital cataracts involved visometrics, tonometry, tonography, biomicroscopy, keratorefractometry, ophthalmoscopy, ultrasonography, and pachymetry. To determine the IOL power, we used the SRK II formula supplemented with the individual correction factor Rm, proposed by the authors. The examined children were divided into 2 groups. The main group 1 included 22 patients (42 eyes), for which the IOL power was calculated with the Rm factor. The control group 2 consisted of 26 patients (44 eyes) for which the IOL power was calculated according to the traditional SRK II formula using age-related hypocorrection of refraction but without the Rm coefficient. Results. The correction factor Rm, allowed us to achieve the targeted refraction in children who were at risk of developing pseudophakic myopia in 83.3 % of cases of the main group (versus 45.4 % of the control group cases) and reduce the development of high age-related refraction) by 37.9 %. In children of the main group, visual acuity reached, on average, 0.5 ± 0.001, while in the control group it was also higher but only reached 0.200 ± 0.001. Conclusion.The method of calculating the IOL optical power involving an individual correction factor Rm, according to the formula: SRK II – R – Rm can be recommended for clinical practice focused on children at risk of abnormal refractogenesis.
AIM: To analyze clinicofunctional and echobiometric indicators of the eyes in children with target refraction, pseudofacial myopia, and their mothers.
MATERIAL AND METHODS: In the eye department of the clinic of the Tashkent Pediatric Medical Institute, a correlation analysis of optical and echobiometric indicators was conducted in 30 children (30 eyes) with artifakia and their mothers (60 eyes). Visiometry, keratorefractometry, and ultrasound examination (A/В scan of the eyeball) were conducted. Children were examined 12-14 months after CC extraction with intraocular lens (I0L) implantation.
RESULTS: A strong direct correlation was determined between the optical power of lOLs in children and their mothers who were theoretically planned for I0L implantation of lOLs in the group that has achieved target refraction. This may indicate the possibility that the child has the same optical power as the mother and the optical power of lOLs in a child is the same as that in adults. No correlation was found between the optical power of the I0L in the eyes of children with pseudophakic myopia and maternal artificial lenses theoretically planned for implantation.
CONCLUSION: The direct strong correlations between the optical power of the I0L of children and the lenses of their mothers in the group with the target refraction achieved by this age make it possible to use the optical power of maternal lenses as a “guideline" when calculating the power of the I0L implanted in children to achieve the target refraction. The lack of correlation between the refractive powers of the I0L in children with pseudophakic myopia and the lenses of mothers may indicate that the SRKII formula with age-related hypocorrection is not adapted to calculate the I0L power in children at risk of excessive refractive enhancement after surgery.
P.R.E.S. formula is revealed as a modern interactive approach to the educational process. It is highlighted that the use of the PRES formula by educators contributes to the fact that students learn to briefly express their opinion and quickly show knowledge of the studied topic.
Subjects of research: polynomial, interpolation and smoothing splines, cubic basic splines, methods and resources of signal processing and prediction of anomalies used in geophysics and railway systems.
Purpose of work: development of methods, algorithms and program complex for simulation of processes of processing and restoring of signals on a basis a spline - functions.
Methods of research: the theory of the functional analysis, generalized spectral methods, theory of numbers and matrixes, theory a spline of functions and simulation, theory of parallel computing processes and numerical methods of solution of simple equations.
The results obtained and their novelty: the methods and effective algorithms of calculation of signal restitution coefficients on the basis of onedimensional and many-dimensional splines arc offered; the algorithms and program complex for simulation of processes of signal processing by methods a spline - functions with application of digital data processors of signals arc developed; the spline - method of the analysis, estimation and prediction of operation stability of rails is offered.
Practical value: the software of the signals restoring with application of digital signal processors of the set Blackfin are developed; the parallel computing structure is offered on the basis of a cubic basic spline; the program complex for simulation of processes of restoring of signals by methods a spline - functions is developed.
Degree of embed and economic cffectivity: the main theoretical and practical results of dissertation work took root in the state joint-stock railway company «Uzbekistan temir yo'llari». The summarized economic benefit makes 26 mln. sum in a year.
Field of application: the methods, algorithms and software designed in dissertation work can be used in geophysics, ecology, seismology and radiolocation for signal processing, and also for problem solving of prediction of stability of rails in railway systems.
The article presents the result of a survey of 35 patients after extracapsular extraction cataract with IOL implantation at the age of 8 months to 13 years.Patients underwent: viziometry, biomicroscopy, keratorefractometry, skiascopy, A, B-scan ultrasound, ophthalmoscopy, consultation of related specialists. The calculation of the optical power of IOL was performed using the SRK II formula. Refraction in the early postoperative period in children from 8 months to 6 years corresponded to the age range, from 6 to 13 years was presented in the form of ametropia.According to the authors , ametropia is a consequence of post-traumatic scarring of the cornea, tension of the stitches , swelling of the cornea and mistakes made at the calculation of the power of the IOL according to the formula SRK II.
Tiklovchi yadro usulini qo‘llab sfera sirti bo‘yicha kubatur formula qurishni va algebraik aniqlik darajasi uncha kata bo‘lmagan kubatur formulalar qurish va ulaming tugunlari sfera ichiga chizilgan muntazam ko‘pyoqlik (simpleks, giperoktaedr) ning uchlari, koeffitsentlari o'zaro teng bo‘lib chiqdi, ya’ni invariant kubator formula singari bo'ldi.
В статье рассмотрены вопросы обеспечения продуктами детского питания, определены и систематизированы факторы, влияющие на их количество и качество, предположена формула определения емкости рынка детского питания.
The possibility of using ultrasound osteometry for the diagnosis of acute odontogenic osteitis and osteomyelitis of the jaws was studied. The study was conducted in 43 children, of which 14 children and 15 adults had heterogeneous abscesses and phlegmon. Acute odontogenic osteitis - in 11 children and 11 adults, acute odontogenic osteomyelitis - in 11 children and 11 adults. The studies were carried out using an ultrasonic diagnostic device with an EOM-01ts echoosteometer. in 1-3 and 7-10 days. The speed of ultrasound in the jaw was calculated by the formula C = L / t. The decrease in the speed of ultrasound in the jaw bone and its dependence on the forms of the inflammatory process. Ultrasonic osteometry allows bone pathology, to predict the course of the disease. Harmlessness, painlessness, ease of use, the ability to recommend echoosteometry for the diagnosis of pathological processes of the jaw in practical dentistry.
State social insurance first appeared in Germany. This happened in the 19th century under the leadership of Otto von Bismarck. The principle of social insurance is very simple: pensioners are dependent on working citizens, for which they transfer a certain part of their wages to the state pension fund. Funds were distributed and immediately given to pensioners. In 1981, the amount of allocations was sufficient for both parties and was 1.7%. At that time there was no unemployment, life expectancy was short compared to today. A lot has changed since that time - the society is aging, allocations to the pension fund are 18.9%.
The study surveys the usage of literary text analysis on the basis of modern pedagogical techniques in the English classroom, which is applied by English teachers for the development of critical thinking abilities of learners at Samarkand State Institute of Foreign Languages. The English language methodology keeps on exploring the ways and methods of teaching the English language by using various techniques to learners. The study focuses on the analysis of the effectiveness of using innovative techniques for developing critical thinking abilities. The research study applies both quantitative and qualitative methods for data analysis. Participating subjects were 100 3 rd year students of the English course studying reading and writing course. The data analysis manifests that the usage of literary texts on the basis of up-to-date techniques for developing critical thinking skills increases the effectiveness of English classes. Modern teaching techniques modify the role of the teacher from the transmission of information to the organizer and coordinator of the educational process and make it possible to form complex competencies in the future. Therefore, the purpose of the investigation is to implement some up-to-date techniques in the syllabus of English classes. The given results illustrate the growth of motivation in reading and analyzing literary texts and general competence of students.
Cellular immune status provides information on the relative and absolute numbers of cell populations (monocytes, granulocytes and lymphocytes) and subpopulations of lymphocytes in the blood. The human body is equipped with a complex defence mechanism whose primary function is to distinguish foreign antigens from the body's own antigens and initiate an appropriate immune response. Historically, innate immunity differs from adaptive immunity, and these systems work closely together. The immune response is mediated by both cellular components (B- and T-lymphocytes, NK cells, macrophages/monocytes, granulocytes and antigen-presenting cells) and humoral components (antibodies, complement factors, cytokines and other soluble effector molecules). [12,13].
The article provides a formula for calculating the amount of rainwater flow during drainage from city streets. Methods are given for determining the variable parameters included in the equation in relation to the conditions of Uzbekistan.