• Physical Therapy Rehabilitation Science
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• v.3 no.2
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• pp.119-124
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• 2014

Objective: The use of chemicals for building prosthetic sockets present the possibility of being hazardous and unsafe due to off-gassing. The purpose of the present study was to investigate if freshly made materials used in prosthetic sockets causes off-gassing that would penetrate the skin and cause damage to the kidneys or blood. Design: Cross-sectional study. Methods: In this research, the off-gassing effects during the initial curing process of styrene monomer, vinyl ester resin, epoxy methacrylate resin, benzene-1, 3-dimethaneamine, trimethylhexanedlamine, and paratertiarybutylphenol were analyzed. Acid detection strips were placed inside newly fabricated mock-prosthetic sockets and left overnight in a closed environment to find out if acid was present in the invisible fumes. The plastic was worn by 9 subjects and urinalysis was made after 48 hours to test for any kidney or blood toxicity of the resins. Results: After wearing the plastic cuff for 48 hours, the ratio of protein to creatinine in the urine was raised to an abnormal level in five out of nine subjects. Four out of the nine subjects showed normal protein to creatinine ratios after wearing the device. The results showed that damage to the kidney occurred from wearing the resins after curing in half of the subjects. Conclusions: It is very important to conduct patient intakes which includes the assessment of renal function. Off-gassing in vented chambers may be needed to protect both prosthetists and patients.

• Journal of the Korean Society of Earth Science Education
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• v.10 no.1
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• pp.17-25
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• 2017

The purpose of this study is to investigate the impact of logical thinking when applying STEAM program for middle school students. Therefore, you're creative, framework governing the conditions and be present, creative design of the emotional experience of class under the procedures of the program from a program by previous studies. STEAM improve program is entirely logical thinking to determine that 47 2nd grade in middle school student radio sampling four weeks, six round of poetry classes. Awareness stage after the program STEAM improved but there was little change in logical thinking and appears to be effective, particularly in conservation, combined logic.(p<0.05)

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.43 no.4
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• pp.359-367
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• 2015

This paper aims to design an educational science program based on rocket propulsion for high school students. Curriculum in high school physics and chemistry were evaluated to find out scientific match with basic principles in rocket propulsion. Also model rocketry was implemented as a part of the educational program. Solid propellants were prepared by the combination of sorbitol and candy after a selection process for solid propellant from several high caloric food candidates. Specially, this program was intended to give an opportunity to organize basic knowledge of high school science with model rocketry by measuring combustion temperature, thrust level of developed propellants. A pilot operation of the program was done with four high school students to evaluate the achievement of final goals of the program both in technical and educational aspect.

• Journal of Bio-Environment Control
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• v.28 no.4
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• pp.429-437
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• 2019

This study was conducted to examine the effect of humidification and shading during cutting propagation on growth and development of strawberry (Fragaria x ananassa Duch.) 'Maehyang' plants at a propagation stage. The runner cuttings were stuck on Nov. 23, 2017 in propagation benches set in a Venlo-type glasshouse. Four shading treatments, no shading (control, C), 55% shading with white lawn (W55), 55% black shading net (B55), or 100% black plastic film (B100) with either an intermittent fog system (H) or without fog system. The shading and fog systems were removed 2 weeks after sticking of strawberry cuttings. A nutrient solution for strawberry, which was developed by Yamazaki, was supplied once a day with electrical conductivity (EC) $1.6dS{\cdot}m^{-1}$ and pH 5.8. Growth parameters such as plant height, longest root, crown diameter, leaf chlorophyll, leaf area and fresh and dry weight were measured at 7 days and 26 days after sticking. There was no significant difference in growth of above-aerial part of strawberry. The overall growth of the strawberry roots was better grew by providing fog than that not provide fog. The root fresh weight and root dry weight after 26 days after sticking of strawberry cutting was the best in the treatment that provided fog system without shading (CH). The longest root after 26 days after sticking of strawberry cutting was the best in the treatments that provided fog system with either 55% white lawn (W55H) and 55% black shading net (B55H). These results suggest that morphogenesis of these plants were affected by humidification and shading types. In a broader perspective, these results can be used to optimize studies of other crops grown from cuttings.

• The Korean Journal of Community Living Science
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• v.16 no.3
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• pp.109-125
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• 2005

The purpose of this study was to analyze the differences in the understanding level of the Korean traditional seasonal customs during summer (i.e. Buddha's birthday, Dano festival, Yudu festival and Chilseok) before and after the execution of a educational program concerning seasonal customs and determine if elementary school teachers recognize a need for this kind of educational program. The subjects of this study were 168 students in the 4th grade at two elementary schools (84 students each for the experiment group and the control group) and 249 teachers at the elementary schools in Yangju city. The major results of this study are as follows : First, it was shown that there is no significant difference in the understanding level of seasonal customs between the experiment group and the control group in the pre-test, but after carrying out the educational program, it was indicated that there is a statistically significant difference between the experiment group and the control group in the post-test. Second, in addition to strongly pointing out the necessity of seasonal customs education, the teachers recognized that it is desirable to teach seasonal customs to students through the discretionary activity class corresponding to the seasonal divisions in the year and that it is especially important to perform the educational activity through traditional plays and to utilize audio-visual media. Also, teachers hoped that a seasonal customs program suitable for elementary school students would be required, along with the development of instructional materials, and finally that the schools need to further develop teacher training through field inspections and practice.

• Journal of The Korean Society of Integrative Medicine
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• v.10 no.1
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• pp.109-118
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• 2022

Purpose : The study to verify the effectiveness of the Soomchi combined marine healing program by analyzing the physical composition of the subjects, their blood lipids, and the effects of the program on their lung health-related variables, and heart rate variability variables. Methods : In the experiment, the Soomchi combined marine healing program was conducted for 5 hours a day, 5 days a week. on 15 participants. The results of their body composition, blood lipids, lactic acid, blood pressure, PEF, FEV1 and maximum oxygen intake were analyzed before and after the subjects completed the Soomchi program. For the statistical analysis, the mean and standard deviation (M±SD) of each variable were calculated using SPSS version 20 and an independent t-test was conducted to test for the amount of change in the participants before and after the Soomchi combined marine healing program. All significant levels were set to α=.05. As a result of the experiment Results : First, no statistically significant differences were found in the changes in body composition after the 5-day combined marine healing program was completed. Second, regarding the changes in blood component after the program was conducted, statistically significant differences were found in the lactic acid (p<.05). That is, the experimental group showed a significant decrease in lactic acid after the program whereas the control group showed a significant increase. Third, systolic blood pressure decreased significantly and while in PEF and FEV1 increased significantly in the experimental group after the program. Fourth, the LF of the control group significantly decreased after 5 days. Conclusion : After the Soomchi Lung Health Ocean Healing Program, positive physical changes were observed in the lung health variables and heart rate variability of the participants.

• Journal of the Korean Applied Science and Technology
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• v.34 no.3
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• pp.587-594
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• 2017

The purpose of this study was to investigate the effect of rope skipping and band exercise on GH, IGF-1 and metabolic syndrome risk factors in female obese middle school students. Twenty female obese middle school students(%BF > 30%) were randomly assigned to a exercise group(EX, n=10) or control group(CON, n=10). The exercise group has performed rope skipping and band exercise for 12 weeks, 3time per week. Exercise intensity was increased gradually, from 40% to 70% of Heart Rate Reserve(HRR) and Rating of Perceived Exertion(RPE) 11-15. GH, IGF-1 and metabolic syndrome rist factors were GH, IGF-1 and metabolic syndrome risk factors were measured pre- and post-exercise program including rope skipping and band exercise. Levels of GH and IGF-1 were significantly increased (p<.01 and p<0.001, respectively) in exercise group after 12 weeks of exercise training. WC and TG were significantly decreased(p<.01) in exercise group after 12 weeks of training. HDL-C was significantly increased(p<.05) in exercise group after 12 weeks of training. In conclusion, rope skipping and band exercise were effective exercise program in improving GH, IGF-1 and metabolic syndrome risk factors in female obese middle school students.

• Physical Therapy Rehabilitation Science
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• v.11 no.4
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• pp.579-584
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• 2022

Objective: To identify the effect of unstable surface kettlebell exercises on muscle activity and balance in middle and high school baseball players. Design: Randomized controlled trial. Methods: The participants were 29 middle and high school baseball players (Unstable surface kettlebell exercises group, USKE: 15; Stable surface kettlebell exercise group, SSKE: 14). The players in the USKE group performed kettlebell exercises for 60 mins on a stable surface thrice a week for 6 weeks, and the return rack was solidified on a stable surface in the same way as the experimental group. Before and after the experiment, the participant's muscle activity of the tibialis anterior and soleus was measured. In addition, the participant's balance was evaluated by measuring the distance moved from the foot's center of pressure (COP). The paired t-test was used to compare groups before and after the experiment. The independent t-test was conducted to assess differences in the degree of change between the two groups before and after the experiment. Results: Compared to the SSKE group, the USKE group showed significant differences in the muscle activity of the tibialis anterior and soleus and the balance with the eyes open and closed. Conclusions: The players in the USKE group showed a significant difference in muscle activity and balance than in those in the SSKE group. Thus, effectively including an unstable surface in the kettlebell exercise program will help improve physical function in athletes and people with musculoskeletal disorders.

• The Journal of Korean Society for School & Community Health Education
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• v.19 no.3
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• pp.79-93
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• 2018

Objectives: This study aimed to develop a smoking cessation education program and to provide basic data for evaluating program for university students majoring in health sciences. Methods: The education program was developed based on the instructional system design model(ADDIE), that was based on literature review, brainstorming, and interviews of related experts. Education program was implemented for 2 sessions of 3 hours to the 82 university students majoring in health science. Knowledge, competency, and self-efficacy for performance of smoking cessation were analyzed. One group pre- & post-test design was used for evaluation of this program. Results: In the analysis stage, a total of 5 duties, 16 tasks, and 55 task elements were derived. In the design and development stage, based on job analysis, education program contents were composed of understanding tobacco, planning and implementation of smoking cessation program, smoking cessation counseling and drug treatment. After this education program, students achieved remarkable improvement in increasing knowledge, competency, and self-efficacy for smoking cessation counselling and program. Conclusions: It is needed to be included the smoking cessation education in department related to health science regular course.

• Journal of the Korean earth science society
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• v.36 no.4
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• pp.360-366
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• 2015

The purpose of this study was to find out the effects of STEAM program on affective domain in high school students. For this purpose, we developed a STEAM program based on 'Landslide and Life' and applied it to 16 members of science club in high school for 7 weeks. We conducted a pre- and post-test of students' scientific attitude in affective domain. We also conducted a survey and in-depth interview about the STEAM program after the implementation of the program. Regarding scientific attitude, the STEAM program found positive on students' increased interest, value, confidence, and general attitude about science. Results of the program evaluation questionnaire, depicted that the most response was made to an item that the program was much helpful in affective domain and that there were positive changes in cognitive domain.