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Implementation of E-Learning System: Findings and Lessons Learned

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Intelligent Information Management 2013年第1期5卷 18-24页

作者： Namsraidorj munkhtsetseg sambuu Uyanga Department of Information System School of Mathematics and Computer Science National University of Mongolia Ulaanbaatar Mongolia

This paper describes the implementation of the e-learning system at the School of Mathematics and Computer Science, National University of Mongolia. The paper includes in-house development of Edunet 1.0 e-learning system, comparative analysis on LMS, evaluation methodology, selection of e-learning systems, and comparative analysis on implementation of Edunet, Moodle and Canvas systems.

关键词： E-Learning System Moodle Canvas LMS Qualitative Weight and Sum Approach National University of Mongolia

Impact of Ambient Air Pollution and Meteorological Factors on Hospital Admission to the Cardiovascular System Disease on Ulaanbaatar City of Mongolia

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Open Journal of Epidemiology 2020年第2期10卷 100-114页

作者： Altangerel Enkhjargal Badrakh Burmaajav sambuu Tsegmed Batbaatar Suvd Byambagar Norolkhoosuren Dorj Unurbat Jadamba Batbayar Academy of Medical Professionals Ulaanbaatar Mongolia Mongolian Academy of Medical Sciences Ach Medical University Ulaanbaatar Mongolia National Center for Public Health Ulaanbaatar Mongolia National center for Health Development Ulaanbaatar Mongolia National Center for Environmental Monitoring Ulaanbaatar Mongolia

Background: Mongolia is situated in northern Central Asia. Landlocked between China and Russia, it is a vast expanse of high attitude grassland steppe, desert, and mountain covering an area of 1,565,000 square kilometers. Air pollution is an increasingly series problem in Mongolia. Materials and Methods: This is a time-series cross over study. All health and air pollution data of 2008-2017 was used for this survey. Results: The mean level of SO2 during the cold season was 35.22 μg/m3 and during the warm season it was 4.65 μg/m3. 24 hours PM10 concentration, during the cold season daily average concentration was 226.77 μg/m3. The 8 hours average daily carbon monoxide concentration (1352.85 μg/m3 [95% CI: 1313.07 - 1396.15]) was high during the cold season, ozone concentration (39.10 μg/m3 [95% CI: 37.95 - 40.35]) was high during the warm season. Air quality depends on metrological parameters. All correlation was statistically significant during the whole year and cold season. In total, 288,832 people get admitted to the hospital due to cardiovascular system disease in Ulaanbaatar during the year of 2008-2017. In general, hospitalization is increasing year by year. Significant associations were found for SO2 with hypertensive diseases (I10 - I15), ischemic heart diseases (I20 - I25), cerebrovascular diseases (I60 - I69), diseases of pulmonary circulation and other forms of heart (I00 - I09, I26 - I52) in all lags. For NO2 was less associated with Ischemic heart diseases (I20 - I25) and diseases of pulmonary circulation and other forms of heart (I00 - I09, I26 - I52). For both PM10 and PM2.5, every disease had observed significant RR in lag 0 - 3. Significant associations were found for air pollutants such as PM10, PM2.5, CO, SO2, and O3 in all lags had a statistically significant association with cold season’s cardiovascular system disease admission. As expected during the warm season significant association was found only lag 1 with PM2.5 and lags (0, 1) CO and O3. C

关键词： Air Pollution Cardiovascular System Disease Meteorological Factors Ulaanbaatar

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肉羊常见病的治疗方法

内蒙古畜牧业（蒙文） 2015年第4期 38-47页

作者：乌达巴拉 sambuu

Short Term Impact of Air Pollution on Asthma Admission in Ulaanbaatar

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Occupational Diseases and Environmental Medicine 2020年第2期8卷 64-78页

作者： Altangerel Enkhjargal Otgonbyamba Oyun-Erdene Badrakh Burmaajav sambuu Tsegmed Batbaatar Suvd Byambagar Norolkhoosuren Dorj Unurbat Jadamba Batbayar Davaakhuu Narantuya Palam Enkhtuya Academy of Medical Professionals Ulaanbaatar Mongolia National Center for Public Health Ulaanbaatar Mongolia Ach Medical University Ulaanbaatar Mongolia Department of Health Development Ulaanbaatar Mongolia National Agency of Environmental Monitoring Ulaanbaatar Mongolia

Background: Asthma is a heterogeneous disease, usually characterized by chronic airway inflammation. The air quality is influenced by locations of the air pollution sources, their performance capacity, the technology used, the composition of waste generated and geographical and climate conditions. In this study, a time-series analysis was conducted to estimate the association of short-term exposure to ambient air pollutants and hospitalization due to asthma in Ulaanbaatar. Objectives: We estimate the short-term associations between daily changes in ambient air pollutants and daily asthma in Ulaanbaatar, Mongolia. Methods: This is a time-series cross over study. All asthma hospital admission and air pollution data of 2008-2017 was used for this assessment. Data analyzed by using the program STATA-12. For testing the differences of the results were used appropriate non-parametric tests. Result: The daily mean of sulfur dioxide concentration was 35.22 mg/m3 in the cold season, which was 7.57 times higher than the mean of the hot season. The mean annual PM 10 concentration was 182.73 μg/m3. Most of the cases of asthma were among women, aged between 5 - 64 years old, registered during winter and spring. 3.8 people admitted to the hospital mostly on weekdays. In all Lag of SO2, in Lag of NO2, in all Lag of PM 10, in PM 2.5 and in all Lag except for Lag 2 of CO, Lag 0 - 2 of O3 the incidence is likely to increase by 0.3% - 6.1% per 10 units of pollutants. Conclusion: The air pollution especially PM 10, PM 2.5, and CO are the most harmful air pollutants to asthma in Ulaanbaatar. The correlation mainly between asthma admission cases with meteorological parameters is because of the cold winter condition.

关键词： Аir Pollution Asthma Time-Series Cross Over Lag Ulaanbaatar Air Pollution