• Journal of the Korean Geographical Society
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• v.49 no.3
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• pp.472-487
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• 2014

This study aims to analyze the characteristics of GIS-related test items of high school Korean Geography in the 7th National Education Curriculum, and to discuss some issues and challenges. First, we developed a framework for analyzing test items based on the literature review and the content analysis on the textbooks, which categorizes test items in terms of content elements and activity elements. Then, we examined test items of nation-wide tests including CSAT(College Scholastic Ability Test) carried out 2004-2012 and analyzed the percentage of correct answers as well. According to the results, there was a significant predominance of particular test item categories, and the percentage of correct answers of GIS-related items was slightly higher than whole average but it depended on the test item categories. Finally, we discussed the implications of this analysis to the tests as well as the teaching-learning process in the classroom, and suggested improvement directions such as integration of GIS with other contents, reinforcement of the inquiry-based test items, maintaining moderate difficulty.

• Transactions of the Korean hydrogen and new energy society
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• v.17 no.3
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• pp.293-300
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• 2006

KIER has been developing a Ru-based preferential oxidation catalysts and a novel fuel processing system to provide hydrogen rich gas to residential PEMFCs system. The catalytic activity of Ru-based catalysts was investigated at different Ru loading amount and different support structure. The obtained result indicated that 2 wt% loaded Ru-based catalyst supported on ${\alpha}-Al_2O_3$ showed high activity in low temperature range and suppressed the methanation reaction. The developed prototype fuel processor showed thermal efficiency of 78% as a HHV basis with methane conversion of 92%. CO concentration below 10 ppm in the produced gas is achieved with separate preferential oxidation unit under the condition of $[O_2]/[CO]=2.0$. The partial load operation have been carried out to test the performance of fuel processor from 40% to 80% load, showing stable methane conversion and CO concentration below 10 ppm. The durability test for the daily start-stop and 8 h operation procedure is under investigation and shows no deterioration of its performance after 50 start-stop cycles. In addition to the system design and development.

• The Journal of the Korea Contents Association
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• v.12 no.9
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• pp.226-233
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• 2012

Purpose: The purpose of this study was to develop and analyze the effectiveness of an education program counseling manual (EPCM) for community-based visiting nurses. Methods: Seventy-eight of community-based visiting nurses was enrolled in this study. Data were collected using structured questionnaires and analyzed using descriptive statistics, the ${\chi}^2$-test, and the paired t-test in SPSS version 18.0. Results: Nurses had higher mean scores for counselor activity self-efficacy: skill self-efficacy, session management self-efficacy and counseling challenges self-efficacy, after EPCM than before EPCM. Significant differences were found after applying the EPCM. Conclusion: The results of this study indicate that the EPCM is effective at improving counselor self-efficacy of community-based visiting nurses.

• Journal of Korean Public Health Nursing
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• v.29 no.1
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• pp.79-89
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• 2015

Purpose: The aim of the study was to determine the effects of a community based participatory program in obese middle-aged women. Methods: One-group pretest-posttest design was used. The subjects were 35 middle-aged women. Data were collected at public health centers in Chungcheongnam-Do from March to May, 2013. To evaluate the effect of the program, physiological indexes(body mass index, skeletal muscle mass, body fat mass, visceral fat area) and health behavior indexes(dietary practice guidelines score, moderate physical activity, drinking frequency) were measured. Analysis was performed using a Wilcoxon Signed Rank Test. Results: After the program, physiological indexes (BMI, BFM, SMM, VFA) and health behavior indexes (dietary guidelines scores, frequency of physical activity, drinking frequency) were significantly improved. Conclusion: The community based participatory obesity program by public health centers is considered to be effective. Therefore, greater effort is needed for better participatory program development of several health promoting fields, and more research is needed in order to examine a continuous effect.

• Journal of the Korean Society of Physical Medicine
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• v.15 no.3
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• pp.109-116
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• 2020

PURPOSE: The objective of this study was to provide a basis for the need to apply psychological factors-based rehabilitation programs to osteoarthritis patients by understanding how the limitations on the activities of osteoarthritis patients relate to the health-related quality of life and depression. METHODS: This study assessed 1,994 osteoarthritis patients from the 7th Korea National Health and Nutrition Examination Survey (KNHANES, 2016-2018). The subjects were divided into two categories: with activity limitation and without activity limitation. A Chi-square test and logistic regression analysis were conducted. RESULTS: The EQ-5D index of subjects with activity limitation was .84 ± .16, it was .94 ± .12 in those with no activity limitation (p < .05). The diagnosis of depression was 16.8% and; 8.3% in those with and without activity limitation, respectively (p < .05). There was a significant difference in the odds ratio for each item in the EQ-5D. Moreover, the odds ratio for depression with an activity limitation was 2.171 (1.512 - 3.118) compared with no activity limitation. CONCLUSION: The activity limitation of osteoarthritis patients reduces the health-related quality of life significantly and increases the probability of depression. Therefore, the treatment of osteoarthritis patients should be approached considering the psychological conditions. Moreover, early diagnosis of depressive symptoms is needed to prevent symptom deterioration and increase the compliance with rehabilitation therapy.

• Science of Emotion and Sensibility
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• v.24 no.4
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• pp.139-148
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• 2021

This study aimed to verify how a multisensory storytelling-based activity-based intervention affects social interaction in children with cerebral palsy. As a quasi-experimental investigation, this study used a single-blind, two-group pre-post test design. This study comprised 24 children aged 7 to 8 y who had been diagnosed with spastic cerebral palsy and were classified as having GMFCS stages I to III. Twelve children were randomly assigned to experimental and control groups, with neither the children nor their guardians knowing which group they were placed in. The group program comprised 16 sessions of 60 min each, twice a week for eight weeks. The experimental group engaged in an activity-centered intervention centered on multisensory storytelling, whereas the control group engaged in structured physical activity. The activities were assessed using the peer relations skills scale to determine the extent to which social interaction had changed prior to and during the child's intervention. The SPSS 25.0 for Windows (IBM Corp, USA) application was used to analyze the data, and the significance level (α) for statistical verification was set to 0.05. Furthermore, the Wilcoxon Signed-Rank and Mann-Whitney U tests were used to assess the differences in social interaction between the experimental and control groups. Significant differences were observed in the total of the peer relationship skill scale and cooperation and empathy areas of the subtest in the intragroup change of the peer relationship skill scale between the experimental and control groups. However, the experimental group demonstrated a significant difference in the initiative area, whereas the control group demonstrated no significant difference. A significant difference was observed in the amount of change between the two groups in the initiative area and total of the subtest of peer relationship skills but no significant difference in the collaboration and empathy areas. We gave a multisensory storytelling-based activity-based intervention based on multisensory storytelling to children with cerebral palsy and saw a significant improvement in peer relationship skills. It may be proposed as an effective intervention strategy for children with cerebral palsy who struggle with social contact.

• Journal of the Korean Society of Food Science and Nutrition
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• v.33 no.10
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• pp.1594-1600
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• 2004

Effects of mistletoe (Viscum album) extract and pueraria (Pueraria radix) extract on cellular NF-$textsc{k}$B activity were evaluated in human malignant keratinocytes (SCC-13) to elucidate the possible correlation of NF-$textsc{k}$B with antioxidant activity. The antioxidant activities of these natural extracts were examined in four different evaluation methods, i.e., lipid peroxidation value (POV) evaluation test, I,l-diphenyl-2-picrylhydrazyl radical (DPPH), nitric oxide (NO) scavenging test, and reducing power assay. Pueraria extract (0.5 mg) and mistletoe extract (5 mg) downregulated the cellular NF-$textsc{k}$B activation up to 35% and 10% compared to the control, respectively, although their effects were lower than the known NF-$textsc{k}$B downregulator, vitamin C (8.8 mg, 53%) in a cell-based NF-$textsc{k}$B activity assay system. In the POV test, relative antioxidant activities of mistletoe extract (86%) and pueraria extract (75%) were significantly higher than the known antioxidant, vitamin C (48%) at the same concentration (10 mg) and the degree of activity increased in a dose-dependent manner. Pueraria extract showed more potential radical scavenging activities than those of mistletoe extract evaluated in both DPPH and NO test. Especially, the NO radical scavenging activity of pueraria extract ($SC_{50}$/, 88 $\mu$g) was comparable to that of vitamin C ($SC_{50}$/, 77 $\mu$g). Even pueraria extract possessed a much less reducing power compared to vitamin C, it also revealed higher reducing power than that of mistletoe extract. These results indicate that mistletoe extract and pueraria extract may serve as an useful natural antioxidant agents, and led to suggest the hypothesis that compounds having an antioxidant activity, i.e., radical scavenging activity or reducing power may be correlated with the downregulation of NF-$textsc{k}$B activation in human keratinocytes.

• Journal of Biomedical Engineering Research
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• v.40 no.1
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• pp.20-31
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• 2019

Medical device performance management is an activity that allows a device to be safely used and maintained even after it is put on the market. The purpose of this study is to provide procedures and criteria for selection of medical device items that should manage the safety and performance among medical devices in hospital. Investigate the performance management status of medical devices in hospitals and identify the performance management status by domestic and advanced regulatory agencies. Provides selection procedures and test methods for medical devices subject to performance management in hospitals based on medical device risk management and reliability. In addition, a case study on drug infusion pumps was conducted.

• Culinary science and hospitality research
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• v.20 no.2
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• pp.152-164
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• 2014

This research attempts to analyze the significant factors that affect the level of expectation and satisfaction of parents on cooking activities for their child(ren) by comparing the levels of their original expectation and satisfaction; based on the understanding of the educational values and effects of cooking activities for children. To conduct the empirical studies, 254 survey samples were collected from the parents who have had their child(ren) participate in cooking activities; in addition, the data was processed and analyzed by using various comparative statistical analysis; including t-test, IPA analysis, regression analysis, one-way ANOVA. And Duncan's multiple test was added to verify the outcome afterwards. As the result of the research, the expectation and satisfaction of parents who let their child(ren) participate in cooking activities were significantly different by such variables as 'improvement of linguistic expression,' 'development of understanding numbers and scientific concepts,' 'extension of capability to give his/her emotional expressions,' 'assistance in soothing his/her psychological stresses.' Besides, 'educational contents and methods' were revealed as another factor that influenced parents' satisfaction, and it is clarified that the level of satisfaction is significantly different according to the organizations offering activity programs.

• Korean Journal of Environmental Biology
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• v.25 no.3
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• pp.267-272
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• 2007

Microorganisms capable of degrading poly(butylene succinate-co-butylene adipate) (PBSA) were isolated from 40 soil samples such as landfill site soil, cultivating soil and activated sludge soil from 20 different sites in Korea by using the enrichment culture and the clear zone test at $37^{\circ}C$. Based on the 16S rDNA sequences, the isolated bacterium was identified to be Streptomyces sp. PBSA-1. Morphological and cultural characteristics were employed for the identification of the isolated fungi and they were proved to be Aspergillus fumigatus PBSA-2 and Aspergillus fumigatus PBSA-3. The PBSA degradation activity of the isolated microorganisms was enhanced through the serial acclimation in PBSA plate medium. The PBSA degrading microorganisms appeared to be highly active for the PBSA degradation in that 83% of PBSA was degraded by Streptomyces sp. PBSA-l, and 65% and 75% of PBSA was mineralized by A. fumigatus PBSA2 and A. fumigatus PBSA-3 respectively during 40 days of the modified Sturm test.