• Atmosphere
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• v.24 no.2
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• pp.245-251
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• 2014

Statistical trajectory analysis has been widely used to identify potential source regions for chemically and radiatively important chemical species in the atmosphere. The most widely used method is a statistical source-receptor model developed by Stohl (1996), of which the underlying principle is that elevated concentrations at an observation site are proportionally related to both the average concentrations on a specific grid cell where the observed air mass has been passing over and the residence time staying over that grid cell. Thus, the method can compute a residence-time-weighted mean concentration for each grid cell by superimposing the back trajectory domain on the grid matrix. The concentration on a grid cell could be used as a proxy for potential source strength of corresponding species. This technical note describes the statistical trajectory approach and introduces its application to estimate potential source regions of $CO_2$ enhancements observed at Korean Global Atmosphere Watch Observatory in Anmyeon-do. Back trajectories are calculated using HYSPLIT 4 model based on wind fields provided by NCEP GDAS. The identified $CO_2$ potential source regions responsible for the pollution events observed at Anmyeon-do in 2010 were mainly Beijing area and the Northern China where Haerbin, Shenyang and Changchun mega cities are located. This is consistent with bottom-up emission information. In spite of inherent uncertainties of this method in estimating sharp spatial gradients within the vicinity of the emission hot spots, this study suggests that the statistical trajectory analysis can be a useful tool for identifying anthropogenic potential source regions for major GHGs.

• Journal of East-West Nursing Research
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• v.12 no.1
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• pp.43-55
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• 2006

Purpose: This study was a descriptive study to assess the relationships between acculturative stress and current perception of stress in Korean immigrants. Methods: The subjects consisted of 154 community-dwelling Korean immigrant living in the USA. Data collection was conducted through the use of questionnaires. The instruments for this study were Acculturative stress (12 items), The Global Assessment of Recent Scale(8 items). The collected data were analysed using SPSS PC 12.0 Programme for Frequency, Percentage, t-test, ANOVA, Duncan test and Pearson's correlation coefficient according to the purpose of this study. Results: 1) The average item score for acculturative stress was 17.17. The average item score for current perception of stress was 26.56. 2) Acculturative stress was positively related to current perception of stress (r=.360, p<.01). 3) Acculturative stress was significantly different according to educational level (F=2.709, p=.047), occupation (F=16.202, p=.000), perceived income comfort level (F=26.666, p=.000), and type of residence (F=2.672, p=.050). The Current perception of stress was significantly different according to age (F=7.380, p=.000), marital status (F=5.354, p=.006), perceived income comfort level (F=12.738, p=.000), and type of residence(F=4.207, p=.007). Conclusion: Theses findings help to clarify relationships between acculturative stress and current perception of stress in Korean immigrants. Therefore, the result of study provide clues for the quality of life of Korean immigrants.

• Phonetics and Speech Sciences
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• v.9 no.2
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• pp.69-76
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• 2017

The current study investigated whether Korean learners' English-learning environments, especially target English accent (General American English (GAE) vs. Southern British English (SBE)) and English-language experience affected their production of English vowels. Thirty six EFL learners, 27 ESL-US learners, and 33 ESL-UK learners produced 8 English vowels with a bVt frame (beat, bit, bet, bat, bought, bot, boat, boot). The learners' productions were acoustically analyzed in terms of F1 and F2 frequencies. The overall results revealed that the learners' target accent had an effect on their production of some English vowels. The EFL and ESL-US learners' (especially, female learners') production of bought, bot, boat, and boot, which show characteristic differences between the GAE and SBE accents, was closer to that of the native American English (AE) speakers than the native British English (BE) speakers. In contrast, the ESL-UK learners' production of bought and bot demonstrated the opposite pattern. Thus, the impact of target accent was not demonstrated across the board. The effect of the learners' different English-language experience was also rather limited. This was because the EFL learners' production was not much different from the ESL-US learners' production, in spite of the ESL-US learners' residence in the US for more than 9 years. Furthermore, the Korean learners, irrespective of their different English-language experience, tended to produce bit and bat with lower F1 than the native AE and BE speakers, thus resulting in bit and bat to be produced similarly to beat and bet, respectively. This demonstrates the learners' persistent L1 effects on their English vowel production despite the learners' residence in the English speaking countries or their high English proficiency.

• Health Policy and Management
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• v.28 no.1
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• pp.70-76
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• 2018

Background: The purpose of this study was to investigate the determinants of North Korean refugees' trust in South Korea health service. Methods: This study surveyed 168 North Korean refugees aged 19 and over living in Seoul, Gyeonggi, Incheon, and Gangwon. The collected data were analyzed by frequency analysis, t-test, analysis of variance, and hierarchical regression analysis to analyze the effect on the trust of refugees. Results: The difference analysis showed statistically significant difference according to duration of residence and employment status. The determinants of North Korean refugees' trust in South Korea health services were duration of residence, basic communication skills, health communication skills, and experience of health service. Conclusion: In order to increase the trust of North Korean defectors in South Korea medical services, it is necessary to resolve communication problems and improve the satisfaction of health services. For this, the interpreter service should be activated. And specific education should be given to the North Korean refugees about the health care system and the utilization methods of health service in Korea.

• Journal of Digital Convergence
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• v.17 no.7
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• pp.89-98
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• 2019

It requires administrative supporting & Policies Aids on Maeul Community Media that confronted with reconstruction of community & interaction of residence. There are increased of community media research. This study examines the meanings of participants, the role of participants & volunteer, characteristic of community media, enlargement of residence, problems and activation of community media also conducted in-depth interviews of participants. According to the results of the analysis, the first it will be enforced administrative supporting & policies aids on Maeul Community Media. Secondly, suggests supporting of a municipal ordinance of Council. Thirdly, facilitate the education of program contents and management of community media. Finally, Supports of production costs.

• Journal of Korean Public Health Nursing
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• v.33 no.1
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• pp.5-19
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• 2019

Purpose: This study conducted to determine if people perceive differences in disaster preparedness, ego-resilience and disaster stress according to their perception of risk and disaster safety, safety of residence, disaster experience and disaster education experience. Methods: A total of 1,000 subjects voluntarily participated in a nationwide online survey. Data obtained were evaluated using the t-test and ANOVA. Results: The average scores were $2.66{\pm}0.73$, $2.64{\pm}0.81$, $2.89{\pm}0.85$, and $3.62{\pm}0.66$ out of 5 points for -the risk of disaster, disaster safety, safety of residence and interest in disaster, respectively. For 18.6% of the subjects who reported having experience with disaster, fine dust was the most common disaster experienced. Moreover, 50.1% of respondents reported earthquake was the most likely disaster. The disaster preparedness score was $4.91{\pm}3.75$ out of 16 points, ego resilience was $3.38{\pm}0.53$ out of 5 points, and disaster stress was $5.61{\pm}1.77$ out of 10 points. There were significant differences in disaster preparedness, ego-resilience and disaster stress depending on subjects' perception of safety or interest in disaster and their experiences or education regarding disaster. Conclusion: Our results suggest that it is necessary to increase awareness of disaster and to prepare a plan for persistent and systematic disaster education.

• Journal of Korean Academy of Nursing
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• v.54 no.1
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• pp.73-92
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• 2024

Purpose: This study developed and tested a hypothetical model of health promotion behavior on migrant workers based on the Health Promotion Model and the Health Literacy Skills Framework. Methods: Data were collected from 298 migrant workers in 9 regions across the country from December 2020 to March 2021. The exogenous variables were e-health literacy, occupational stress, acculturation, and social support. The endogenous variables were perceived benefits of action, self-efficacy, and health promotion behavior. Data were analyzed using SPSS/WIN 25.0, AMOS 20.0, and R-4.0.3 program. Results: The model fit was appropriate. Social support had the most significant direct impact on the health promotion behavior of migrant workers. Perceived benefits of action and self-efficacy played a mediating role in the relationship among e-health literacy, social support, and health promotion behavior. Based on multi-group analysis, the migrant worker group with less than 5 years of residency had a more statistically significant effect on the relationship between perceived benefits of action and health promotion behavior than those with over 5 years. Conclusion: Providing social support as a critical administrative strategy to enhance the health promotion behavior of migrant workers is necessary. Furthermore, when developing an intervention program utilizing the internal mechanism between social support and health promotion behavior, a self-efficacy-enhancing strategy is considered to be more effective. Additionally, educating migrant workers with short-term residence of less than 5 years about the benefits of health behaviors is essential.

• The Journal of Korean Society for School & Community Health Education
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• v.24 no.4
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• pp.51-60
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• 2023

Objectives: This study attempted to examine the factors that affect the national health checkup rate of the elderly, analyze the impact of these factors, and discuss countermeasures to problems that may arise based on this. Methods: This study used the '8th National Health and Nutrition Examination Survey (2019-2021)', a nationwide survey, as the main data. The subjects of the study are seniors aged 65 years or older, the dependent variable is whether or not they underwent a national health checkup, and the independent variables are gender, marital status, residence, education level, income level, economic activity, type of medical coverage, private insurance subscription, subjective health, High blood pressure, diabetes, depression, stress, and weight change were selected. The statistical analysis package for data analysis is SPSS ver. 27.0 was used, and a p value of less than 0.05 was considered significant. Results: Of the 2,806 seniors aged 65 years or older, 2,074 (73.9%) took the national health screening over the past two years. In terms of marital status, married was 1.451 times higher than single (p<0.001), and in terms of residence, myeon was 1.240 times higher than dong (p<0.01). In terms of education level, college graduates were 2.053 times higher than elementary school graduates (p<0.001), and in terms of economic activity, the employed were 1.325 times higher than the unemployed (p<0.01). Private insurance was 1.883 times higher than non-subscription (p<0.001), weight change was 1.234 times higher for change than no change (p<0.05), and current smoking rate was 2.003 times higher for non-smokers than for former smokers. It was high (p<0.001). Conclusion: In conclusion, if differentiated promotion and health education are strengthened for the elderly who cannot participate in the national health screening, the participation rate of the elderly in the national health screening is expected to increase.

• Food Science and Biotechnology
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• v.14 no.4
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• pp.446-449
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• 2005

Two single-magnetron heating systems (SM-HS), each with a helical glass heat exchanger and a cylindrical cavity, were combined to make a two-magnetron-in-series heating system (2MS-HS) in order to increase the heating capacity. A comparison using water showed that the heating performance of the 2MS-HS was increased by two-fold as compared to that of the SM-HS, resulting in energy saving of 7.0% in 2MS-HS. Pasteurization test of 2MS-HS conducted with model food (LB broth contaminated with Bacillus subtilis) showed two-fold higher treatment capacity compared to SM-HS. Relationships between outlet temperature of the processed food, flow rate, and residence time in the 2MS-HS were established for water. Optimum pasteurization capacity was 17 s, $73^{\circ}C$, at flow rate of 280 ml/min. The 2MS-HS could be applied to the small-scale pasteurization of liquid food.

• Research in Community and Public Health Nursing
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• v.21 no.4
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• pp.512-521
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• 2010

Purpose: The remarkable progress in information and communication technology has had a great effect on the healthcare delivery system. The development of smart phone applications is a new field. The aim of our research was to provide assistance in developing smart phone applications for community health nursing. Methods: Based on an informative approach, this study developed persona and site maps, followed by a storyboard as a way of analyzing users' requirements and designing responses in the context of smart phone application development methodology. Results: We developed persona, user interface and database design successfully, and then seven nurses selected four nursing problems (income, residence, pain, and digestion hydration). The search time in seconds for the 2005 English OMAHA guidelines to find three nursing interventions for these problems was used to evaluate the effectiveness of the smart phone application. The results showed that smart phone applications' search was 21 times faster on the average than book guidelines. Conclusion: An English version of the OMAHA system application was developed for the Android smart phone market. It is hoped that smart phone applications such as this will be used internationally for nursing education.