124 research outputs found
H2O self-broadening coefficients of rotation-vibration lines in the 15 500-16 000 cm-1 region
Line broadening coefficients of the Н2О-Н2О system were investigated in the region 15500 – 16000 cm-1 using a high resolution Fourier-transform spectrometer IFS-125M. The White type multipass absorption cell with a basic length of 60 cm was used. Least-square-fitting algorithm WXSPE was used to retrieve of the spectroscopic parameters from measured spectral data set. Calculations of self-broadening are performed using a semi-empirical approach. This method is further developed by using anharmonic wavefunctions in the estimates of line profiles. This approach explicitly takes into account all scattering channels induced by collisions. Calculated data are in a good agreement with the measured ones. © (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only
Verification of H2O lines from the HITRAN database for remote sensing of the water vapour isotopic composition
The quality of the spectroscopic line parameters from the HITRAN Database for remote sensing of the water vapour isotopic composition of the atmosphere is widely discussed. In this research we show that the HITRAN-2008 data for H2O isotopologues in the near infrared spectral range (4000-6400 cm-1) is reasonably good. The HITRAN data was tested with independent calculation (ab initio et al.). For the evaluation we've used two following criteria: a quality of the fitting of atmospheric spectra measured at the Ural Atmospheric Station (UAS, Kourovka) with the high-resolution Fourier-transform infrared spectrometer and an agreement between the retrieved HDO/H2O relative concentration ratios in the atmospheric column and the results of the simulation of the isotopic general circulation model ECHAM5-wiso (validated for Kourovka region). © (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only
Використання тренажерів із віртуальною та доповненою реальністю в системі професійної підготовки зварників: минуле, сучасне та майбутнє
The article discusses the theory and methods of simulation training, its significance in the context of training specialists for areas where the lack of primary qualification is critical. The most widespread hardware and software solutions for the organization welders' simulation training that use VR- and AR- technologies have been analyzed. A review of the technological infrastructure and software tools for the virtual teaching-and-production laboratory of electric welding has been made on the example of the achievements of Fronius, MIMBUS, Seabery. The features of creating a virtual simulation of the welding process using modern equipment based on studies of the behavioral reactions of the welder have been shown. It is found the simulators allow not only training, but also one can build neuro-fuzzy logic and design automated and robotized welding systems. The functioning peculiarities of welding's simulators with AR have been revealed. It is shown they make it possible to ensure the forming basic qualities of a future specialist, such as concentration, accuracy and agility. The psychological and technical aspects of the coaching programs for the training and retraining of qualified welders have been illustrated. The conclusions about the significant advantages of VR- and AR-technologies in comparison with traditional ones have been made. Possible directions of the development of simulation training for welders have been revealed. Among them the AR-technologies have been presented as such that gaining wide popularity as allow to realize the idea of mass training in basic professional skills.У статті розглянуто теорію та методи симуляційного навчання, його значення в контексті підготовки фахівців для галузей, де недостатня початкова кваліфікація є критичною. Проаналізовано найпоширеніші апаратні та програмні рішення для навчання симуляцій організації зварників, які використовують VR- та AR-технології. Огляд технологічної інфраструктури та програмних засобів для віртуальної навчально-виробничої лабораторії електрозварювання було зроблено на прикладі досягнень Fronius, MIMBUS, Seabery. Показано особливості створення віртуального моделювання зварювального процесу з використанням сучасного обладнання на основі досліджень поведінкових реакцій зварника. Встановлено, що тренажери дозволяють не тільки навчатись, але й можна будувати нейро-нечітку логіку та проектувати автоматизовані та роботизовані системи зварювання. Виявлено особливості функціонування зварювальних тренажерів з АР. Показано, що вони дозволяють забезпечити формуючі основні якості майбутнього фахівця, такі як концентрація, акуратність та спритність. Проілюстровано психологічні та технічні аспекти навчальних програм для підготовки та перепідготовки кваліфікованих зварювальників. Зроблено висновки про суттєві переваги VR- та AR-технологій порівняно з традиційними. Розкрито можливі напрями розвитку симуляційної підготовки зварників. Серед них AR-технології були представлені як такі, що набувають широкої популярності, оскільки дозволяють реалізувати ідею масового навчання базовим професійним навичкам
Condition of menstrual function in adolescent girlswith dance loading
A survey of 43 girls enrolled in a class of choreography and 34 Girls enrolled in the class of visual arts was conducted. We compared physical activity, sleep duration, the formation and characteristics of menstrual function and the attitude of girls to reproductive health problems. It was found that 38.2% of girls ballerinas sleep less than 8 hours a day and 16% among girls are female artists. Half (51%) of the ballerinas had from 2 to 5 hours of physical exertion per day 5-6 days a week, as opposed to 2 hours 2-3 times a week in 94% of girls girls. Regular menstrual cycles have had only 34% of girls are ballerinas and 71% of girls are artists. Amenorrhea was found in 21% of dancers and 5.8% of female artists. Scanty menstruation is also more often noted by ballerinas 34.8 versus 26.4% among artists. At the same time, 35% of female artists and 14% of ballet dancers noted dysmenorrhea.Было проведено анкетирование 43 девочек, обучающихся в классе хореографии и 34 девочки, обучающиеся в классе изобразительного искусства. Сравнивали физическую нагрузку, продолжительность сна, становление и особенности менструальной функции и отношение девочек к проблемам с репродуктивным здоровьем. Было установлено, что спят менее 8 часов в сутки 38,2% девочек балерин и 16% девочек художниц. Половина (51%) балерин имели от 2 до 5 часов физической нагрузки в день 5-6 дней в неделю против 2 часов 2-3 раза в неделю у 94% девочек художниц. Регулярным менструальный цикл был только у 34% девочек балерин и у 71% девочек художниц. Аменорея была установлена у 21% балерин и 5,8% художниц. Скудные менструации также чаще отмечали балерины 34,8 против 26,4% у художниц. В то же время дисменорею отмечали 35% художниц и 14% балери
Condition of menstrual function in adolescent girlswith dance loading
A survey of 43 girls enrolled in a class of choreography and 34 Girls enrolled in the class of visual arts was conducted. We compared physical activity, sleep duration, the formation and characteristics of menstrual function and the attitude of girls to reproductive health problems. It was found that 38.2% of girls ballerinas sleep less than 8 hours a day and 16% among girls are female artists. Half (51%) of the ballerinas had from 2 to 5 hours of physical exertion per day 5-6 days a week, as opposed to 2 hours 2-3 times a week in 94% of girls girls. Regular menstrual cycles have had only 34% of girls are ballerinas and 71% of girls are artists. Amenorrhea was found in 21% of dancers and 5.8% of female artists. Scanty menstruation is also more often noted by ballerinas 34.8 versus 26.4% among artists. At the same time, 35% of female artists and 14% of ballet dancers noted dysmenorrhea.Было проведено анкетирование 43 девочек, обучающихся в классе хореографии и 34 девочки, обучающиеся в классе изобразительного искусства. Сравнивали физическую нагрузку, продолжительность сна, становление и особенности менструальной функции и отношение девочек к проблемам с репродуктивным здоровьем. Было установлено, что спят менее 8 часов в сутки 38,2% девочек балерин и 16% девочек художниц. Половина (51%) балерин имели от 2 до 5 часов физической нагрузки в день 5-6 дней в неделю против 2 часов 2-3 раза в неделю у 94% девочек художниц. Регулярным менструальный цикл был только у 34% девочек балерин и у 71% девочек художниц. Аменорея была установлена у 21% балерин и 5,8% художниц. Скудные менструации также чаще отмечали балерины 34,8 против 26,4% у художниц. В то же время дисменорею отмечали 35% художниц и 14% балери
A herd immunity to measles and rubella viruses in the population of the Republic of Serbia
According to the WHO Strategic Plan, measles should be eradicated in 2020 in the five WHO Regions including European Region. However, large measles outbreaks are being periodically registered in diverse European countries. In the Republic of Serbia (SRB), 5,076 measles cases were detected in 2018, among which 15 cases were fatal.Aim of the study was to examine herd immunity to measles and rubella viruses in the population of the Republic of Serbia.Materials and methods. Blood serum samples obtained in 2018 and 2019 from conditionally healthy residents of the Republic of Serbia were tested for the presence of IgG antibodies to measles and rubella viruses in five age groups: I — children from 2 to 6 years old, II — children from 8 to 14 years old, III — 15 to 24 years old, IV — 25 to 49 years old and V — over 50 years old. A total of 1000 samples were obtained, 200 sera in each group. Enzygnost® Anti-Measles virus/IgG and Enzygnost® Anti-Rubella virus/IgG ELISA test systems (Siemens Healthcare Diagnostics Products GmbH, Germany) were used according to the manufacturer's instructions.Results. Overall, around 23.0% and 33.7% of the surveyed persons had no or low level of anti-measles IgG antibody (≥ 275.0 — ≤ 1000.0 IU/1). In age group I, 60% children contained no or “low” anti-measles antibodies titer (29.5% and 30.5%, respectively). In addition, low antibody titer level was mainly detected in individuals from age group II and III (p < 0.05). A third of children under 8—14 contained high IgG-antibodies titer against measles (> 3000.0 IU/l) that might serve as an evidence that such subjects recently recovered after measles. Similar results were obtained for IgG antibodies to rubella in the same age groups.Discussion. The study results evidence about altered routine immunization against measles and rubella in children aged 12—15 months (first vaccination) and those at age of 6—7 years (revaccination) with MMR vaccine. The data obtained correlate with official data on coverage with measles and rubella vaccines in the Republic of Serbia
Students’ satisfaction with the educational environment «Medspace»
The purpose of study. To find out the degree of student satisfaction with the MedSpace electronic educational environment implemented at USMU.Цель исследования – выяснить степень удовлетворенности студентов внедренной в УГМУ электронной образовательной средой MedSpace
Implementation of the program of measles elimination in the WHO African region
The review is devoted to the analysis of the available literature on the elimination of measles. The review focuses on the current measles epidemic situation in the African Region (AFR) and the implementation of the WHO strategic plan for the elimination of measles in AFR by 2020. Measles in the AFR is characterized by a severe course with a high risk of death due to malnutrition, vitamin A deficiency, concomitant bacterial and viral infections, and malaria. In 2015, 105,256 cases of measles were reported in the WHO African Region, most of them among children under 5 years old, 79% of whom were not vaccinated or had unknown vaccine status. Initially, the strategy for implementing the measles elimination program in AFRs was based on a combination of immunization campaigns for children under 14 years of age (coverage of more than 90%) and routine vaccination of at least 90% of children aged 9–15 months. It was recommended to repeat the campaign of mass immunization of children aged 9 months up to 4 years every 3–5 years. The use of this strategy has reduced the number of measles cases by 83–97% during the first year of additional immunization programs. The recommended age of routine measles vaccination in AFRs is 9 months — a strategy to reduce infant mortality, including that due to complications of measles. In 2016, measles vaccination was introduced into the national immunization schedule in all AFR countries, and 24 countries introduced revaccination. Currently, the measles elimination program in a number of AFR countries is based on two-dose immunization (MCV1 and MCV2). The measles prevention program in a number of AFR countries was disrupted due to the Ebola epidemic. There are some common problems in the realization of the program in AFR countries. All AFR countries are committed to the measles elimination program. The review provides information on strategies and successes in overcoming challenges to achieve the goals set for the WHO African Region in the implementation of the programme of measles elimination
The awareness of students about reproductive health
The aim of the study - to examine the awareness of students about the risk factors for reproductive health disorders and the choice of contraceptive methodsЦель исследования - изучить информированность студентов о факторах риска нарушения репродуктивного здоровья и выбора методов контрацепции
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