• Korean Journal of Health Education and Promotion
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• v.15 no.1
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• pp.115-131
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• 1998

Understanding average abnormal obese high school students' health awareness and attitude, We analyzed problems affect on this to provide basic data for the school health education in the near future. From March, 1997, covering a month period, We investigated 300 average obese students from each 3 school, both boys and girls, around Taegu area. Followings are the summary. 1) Grouping obesity, 86.6% of boys were abdominal type and 54.0% of girls were lump types. 2) IN physical check-up and serum lipid lab., there were a lot of abnormal students for blood pressure, serum glucose, total cholesterol, high density lipoprotein(HDL), low density lipoprotein(LDL), neutral lipid, the rate of lipid in the body, atherosclerosis index and electrocardiogram (ECG).; Especially, for the rate of Lipid in the body, 100.0% were in the abnormal range. 3) The main reasons of stress were on the physique and grade. Over 50.0% of students get rid of their stress by singing and dancing. 4) 46.7% of boys and 56.0% of girls were satisfied with their desks and 51.3% of boys and 48.0% of girls were satisfied with their chairs.; 70.0% of boys and 78.7% of girls usually felt uncomfortable for their desks and chairs. 5) 100.0% of boys and 98.0% of girls have been educated for obesity.; 53.3% of boys and 50.7% of girls were not interested in whether joining in or not, if ‘Obese school’ is open. 60.7% of boys get information about weight loss from television, while 41.3% of girls get it from all sorts of publications.; Both sexes said eating convenience food is the main reason to be obese. Most frequent disease is high blood pressure.; 30.0% of boys and 31.3% of girls were hypertensives. 6) 84.7% of boys and 78.0% of girls are awake to the seriousness of obesity from their families. 58.7% of boys and 66.0% of girls sometimes have meals with their families. For the boys, 30.0% of them eat fruit and 29.3% eat cookies while 37.3% of girls eat cookies for their snacks. Both 57.3% of boys and 40.0% of girls have a snack once a day and they drink soft drinks frequently. Both 32.0% of boys and 46.7% of girls have midnight meals 1-2times a week. 7) Both 45.3% of boys and 50.0% of girls suddenly gained their weight in the elementary school times. 30.0% of boys exercise 1 hour for a week, while 48.0% of girls don't exercise. For the exercise hour, both 53.3% of boys and 42.0% of girls exercise for 10-30 minutes a time. 59.7% of boys and 82.0% of girls strongly don't trust in the informations on weight loss. Both 74.0% of boys and 75.3% of girls think physical therapy is the most suitable way for obesity care.

• Journal of Life Science
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• v.17 no.1 s.81
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• pp.82-90
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• 2007

In an attempt to establish the appropriate ventilation device for the bottle culture of king oyster mushroom (Pleurotus eryngii), we investigated carbon dioxide concentration and fruiting body formation according to the various ventilation systems within the mushroom house. In addition to, the efficiency of air circulation and growth rate as well as the appearance of physiologically abnormal phenotypes during their growth stage were also evaluated. four different ventilation devices, parallel-pressure type, positive-pressure type, negative-pressure type, and positive- and negative-pressure type were applied in this study. The positive-and negative-pressure type showed the highest efficiency of air circulation as $CO_2$ concentration was 800 ppm and the level of air current was relatively low compared to the other types (the $CO_2$ concentration of parallel-pressure type was 1,400 ppm). Moreover, the stipe length, the cap diameter, yield, and general quality grown in positive- and negative type ventilation device were also better than in the other three devices though it took slightly longer period for harvesting (18.4 days) than the others (17.6, 17.9 and 18.3 days). The appearance of physiologically abnormal phenotypes such as fruiting body lump, soft rot, and brown rot were significantly decreased in positive-and negative type compared to other types, while the appearance rates were not much different for other symptoms of bacterial ooze, stipe limb and stipe bumpy. In summary, we propose that the optimal ventilation system for the bottle culture of king oyster mushroom is positive- and negative type, and this device is expected to increase the total quality as well as yield all year around.

• Economic and Environmental Geology
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• v.56 no.1
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• pp.103-114
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• 2023

The Christian Museum of Gongju Jeil Church was first built in 1931 and was largely damaged during the Korean War, but the walls and chimneys have been preserved. This building has a high architectural values in that the chapel was reconstructed in 1956, and maintains its original form through repair of damaged parts rather than new construction. The stained glass windows were as installed in 1979 and has a great significance in the Dalle de Verre method using lump glass. However, some of the stained glass damaged partially, such as various cracks and splits, and vertical and horizontal cracks in the joint fillers of supporting the colored glass. As the structural materials of the stained glass window, an iron frame and cement mortar filled with it were used, and corrosion of iron, cracking of mortar and granular decomposition appear partially due to weathering. In the joint fillers, the content of Ca and S is very high, indicating that gypsum were used as admixtures, and the gypsums grow in a rhombohedral and forms a bundle, which is investigated to have undergone recrystallization. As a result of modeling the ultrasonic velocity at the joint fillers, the left and right windows at the entrance show relatively weak in the range of 800 to 1,600m/s, and the lower right corner of the altar window and the upper left corner of the center window were also 1,000 to 1,800m/s, showing relatively low physical properties. And gypsums produced during the neutralization of lime mortar were detected in the joint fillers and contaminants on the surface. Such salts may cause damage to the joint material due to freezing and thawing, so appropriate preventive conservation is required. Also, since various damage types are complexly appearing in stained glass window and joint filler, customized conservation treatment should be reviewed through clinical tests.