• Investigative Magnetic Resonance Imaging
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• v.23 no.3
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• pp.210-219
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• 2019

Purpose: The purpose of this study was to investigate if double inversion recovery (DIR) imaging can have a role in the evaluation of brain ischemia, compared with diffusion-weighted imaging (DWI) and fluid-attenuated inversion recovery (FLAIR) imaging. Materials and Methods: Sixty-seven patients within 48 hours of onset, underwent MRI scans with FLAIR, DWI with b-value of 0 (B0) and $1000s/mm^2$, and DIR sequences. Patients were categorized into four groups: within three hours, three to six hours, six to 24 hours, and 24 to 48 hours after onset. Lesion-to-normal ratio (LNR) value was calculated and compared among all sequences within each group, by the Friedman test and conducted among all groups, for each sequence by the Kruskal-Wallis test. In qualitative assessment, signal intensity changes of DIR, B0, and FLAIR based on similarity with DWI and image quality of each sequence, were graded on a 3-point scale, respectively. Scores for detectability of lesions were compared by the McNemar's test. Results: LNR values from DWI were higher than DIR, but not statistically significant in all groups (P > 0.05). LNR values of DIR were significantly higher than FLAIR within 24 hours of onset (P < 0.05). LNR values were significantly different between, before, and after six hours onset time for DIR (P = 0.016), B0 (P = 0.008), and FLAIR (P = 0.018) but not for DWI (P = 0.051). Qualitative analysis demonstrated that detectability of DIR was higher, compared to that of FLAIR within 4.5 hours and six hours of onset (P < 0.05). Also, the DWI quality score was lower than that of DIR, particularly relative to infratentorial lesions. Conclusion: DIR provides higher detectability of hyperacute brain ischemia than B0 and FLAIR, and does not suffer from susceptibility artifact, unlike DWI. So, DIR can be used to replace evaluation of the FLAIR-DWI mismatch.

• Korean Journal of Health Education and Promotion
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• v.18 no.3
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• pp.117-131
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• 2001

This study was attempted to develope a highly reliable and valid tool which is useful to assess the Korean obese adolescents' stress and coping method. The data were collected from the total of 600 obese students from middle and high schools in Pusan. The author used a convenience sampling method. The data collection was done from March 2 to July 11, 1999. The analysis of the data was done with SPSS Win(10.0) for descriptive statistics and factor analysis. The preliminary tool was composed of 72 items(stress items: 34, coping method items: 38) with the five point Likert scale. Item analysis and inter consistency were calculated for reliability and validity through pre-test. The preliminary tool was analyzed for reliability and validity. Finally, the tool was of 65 items(stress items: 33, coping method items: 32). The results were as follows: 1. Cronbach Coefficient Alpha for the 33 items of stress was .9485 and the 32 items of coping method was .8534. 2. The factor analysis was done in order to confirm construction and the items were extracted Oblimin rotation and Maximum likelihood extraction method. 3. The factor analysis showed 6 factors in stress and 10 factors in coping method. These 6 factors of stress explained 62.4％ and 10 factors of coping method explained 57.4％. 4. Six factor of stress lable were 〈outward appearance〉, 〈boyfriend/ girlfriend〉, 〈occur an outbreak of disease〉, 〈mutual relation of family〉, 〈an obese figure〉, 〈be a burden on exercise〉. 5. Ten factor of coping method lable were 〈be concerned about another affairs〉, 〈recreation activities〉, 〈self-violence〉, 〈relaxation〉, 〈hobby activities〉, 〈avoid a situation〉, 〈communication〉, 〈music〉, 〈negative behavior〉, 〈positive thinking〉. The results of using this scale in a study will contribute to design an appropriate school health management of obese students, and also it will contribute to the development of nursing research.

• Journal of Korean Foot and Ankle Society
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• v.8 no.2
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• pp.142-148
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• 2004

Purpose: We compared the results of three surgical procedures of the old neglected Freiberg's disease that was managed with metatarsal head reshaping, metatarsal head resection, and dorsal closing wedge osteotomy. Materials and Methods: From march 1996 to July 2002, five cases in six patients whose metatarsal head collapse already progressed underwent operative treatment. We compared the operative results in the view point of the radiographic follow-up and lesser toe metatrasophalangeal joint scale of AOFAS. Results: There were no further joint destruction and loose body formation. Also, lesser toe metatrasophalangeal joint scale of AOFAS improved from average score, 38.5 (range $22{\sim}49$) of preoperative one to average score, 86.6 (range, $72{\sim}100$). Especially, the 2 cases that underwent dorsal closing wedge osteotomy showed most favorable result and the 2 cases with metatarsal resection showed next favorable result. The 2 cases with intra-articular loose body removal and metatarsal reshaping showed the least effective result among three operative methods. Conclusion: Our Operative experiences of old neglected Freiberg's disease were all satisfactory irrespective of operative options and dorsal closing wedge osteotomy was thought to be most effective method.

• International Journal of High-Rise Buildings
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• v.6 no.2
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• pp.165-175
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• 2017

The importance of designing urban building complexes so that they obtain 'urban' power, rather than become isolated from the surrounding urban context, has been well recognized by both researchers and practitioners. Nevertheless, most current discussions are made from architects' personal experiences and intuition, and lack a quantitative understanding, to which obstacles include an in-depth exploration of the 'urban' power between building complexes and the urban environment. This paper attempts to measure this feature of 'urban', i.e., 'urbanity,' through a new analytical approach derived from the opendata environment. Three measurements that can be easily collected though the Google Maps API and Open Street Map are applied herein to evaluate high or low values of urbanity. Specifically, these are 'metric depth', i.e., the scale of extended public space, 'development density', i.e., density and distribution of point of interests (POIs), and 'type diversity', i.e., diversity of different commercial types. Six cases located in Japan, China and Hong Kong respectively are ranked based on this analytical approach and compared with each other. It shows that Japanese cases, i.e., Osaka Station City and Namba Parks, Osaka, obtained clearly higher values than cases in Shanghai and Hong Kong. On one hand, the insight generated from measuring and explaining 'urban' power would help to assist better implementation of this feature in the design of urban building complexes. On the other hand, this analytical approach can be easily extended to achieve a large-scale measurement and comparison among different urban building complexes, which is also helpful for design practitioners.

• Fashion & Textile Research Journal
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• v.7 no.5
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• pp.527-534
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• 2005

The purpose of this research is to study face images according to color of make-up was made by computer graphic simulation. The various facial images can be helpful for choosing suitable make-up color planning. In order to find out the differences of face images by make-up color, three different foundations and seven eye-shadows, six lips were applied on the round face model. Make-up Image Scale was used the scale of seven point modified the S-D method. Data were analyzed by Varimax perpendicular rotation method, Duncan's Multiple Range Test, Three-way ANOVA. As the result of make-up image perception analysis, a factor structure was divided into mildness, modernness, elegance, unique. The factor of mildness, modernness, unique affected on the foundation color. Foundation color was found out to be influential variable to distinguish color perception abilities. Also, the foundation, eye-shadow, lip color were influenced interactively on the perception of elegance factor. Pink color was important color, influenced on the mildness factor. Gray and purple color were influenced on the modernness factor. Mildness factor was perceived as the most bright foundation but unique factor was perceived as the most dark foundation. Then, the foundation, eye-shadow, lip color were influenced interactively on the perception of facial images. The results can be effectively applied to today's marketing and color design management which is focused on the product's emotional image in customer's mind.

• Journal of Korean Dental Hygiene Science
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• v.4 no.1
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• pp.11-18
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• 2021

Background: The present study aimed to analyze which curriculum is the most relevant to dental hygiene students when they participate in clinical practice in order to provide a useful reference for preparing educational guidance in this field. Method: The survey utilized in the present study consisted of six questions about general characteristics, such as grade, satisfaction with major, amount of clinical practice, period of clinical practice, place of clinical practice, and the most interesting are during clinical practice. When evaluating curriculum relevancy, the following were ranked on a 5-point Likert scale, where 5 = very useful, 4 = comparatively useful, 3 = normal, 2 = comparatively unuseful, 1 = very unuseful: difference in requirements in the field of clinical practice, reason for this difference, and question about the utility of each curriculum. On this scale, higher points implied higher relevance. Result: The highest groups of curricula regarding curriculum utility were as follows: operative dentistry (59.6%), pre-clinical practice (55.2%), dental materials and clinical practice (54.4%), and prosthetic dentistry (49.6%). The lowest groups of curricula regarding curriculum utility were as follows: oral physiology (2.0%), oral histology and embryology (1.6%), and oral microbiology (1.2%). These results imply a lack of connection between the curriculum and tasks in clinical practice. Conclusion: Based on the results of the present study, it appears that both theory and practice courses of the clinical curriculum must be conducted systematically, and that there is a need to conduct education for the fundamental curricula, such as oral physiology, oral histology and embryology, and oral microbiology, regarding the relevance of tasks practiced in clinics.

• Proceedings of the ESK Conference
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• 1997.04a
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• pp.56-60
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• 1997

The study of human erroneous actions has traditionally taken place along two different lines of approach. One has been concerned with finding and explaining the causes of erroneous actions, such as studies in the psychology of "error". The other has been concerned with the qualitative and quantitative prediction of possible erroneous actions, exemplified by the field of human reliability analysis (HRA). Another distinction is also that the former approach has been dominated by an academic point of view, hence emphasising theories, models, and experiments, while the latter has been of a more pragmatic nature, hence putting greater emphasis on data and methods. We have been developing a method to make predictions about error modes. The input to the method is a detailed task description of a set of scenarios for an experiment. This description is then analysed to characterise thd nature of the individual task steps, as well as the conditions under which they must be carried out. The task steps are expressed in terms of a predefined set of cognitive activity types. Following that each task step is examined in terms of a systematic classification of possible error modes and the likely error modes are identified. This effectively constitutes a qualitative analysis of the possibilities for erroneous action in a given task. In order to evaluate the accuracy of the predictions, the data from a large scale experiment were analysed. The experiment used the full-scale nuclear power plant simulator in the Halden Man-Machine Systems Laboratory (HAMMLAB) and used six crews of systematic performance observations by experts using a pre-defined task description, as well as audio and video recordings. The purpose of the analysis was to determine how well the predictions matiched the actually observed performance failures. The results indicated a very acceptable rate of accuracy. The emphasis in this experiment has been to develop a practical method for qualitative performance prediction, i.e., a method that did not require too many resources or specialised human factors knowledge. If such methods are to become practical tools, it is important that they are valid, reliable, and robust.

• Korean Journal of Community Nutrition
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• v.21 no.1
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• pp.12-24
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• 2016

Objectives: The objectives of the study were to investigate the school nutrition teachers' perception on their job and to find out recommendations needed for its improvement in order to provide a quality foodservice and nutrition education at schools. Methods: A total of 219 school nutrition teachers in Seoul were surveyed using selfadministered questionnaires. Results: The perceived importance of the 16 job duties was rated 3.8 based on a 5-point scale (1: very unimportant - 5: very important). The importance of six duties including nutrition management, production management, nutrition education, and food safety management were rated over 4 point but that of record-keeping for documents, official reporting, and service management was rated the lowest. Importance-Performance Analysis showed that nutrition management, receiving/storage management, production management, menu management, food safety management, and equipment/facilities management should be emphasized to maintain the current performance of duties. The performance of the nutrition education and counseling needed to be improved since the importance scores were greater than average but the performance scores were lower than the average. Official reporting and miscellaneous jobs were rated the highest for simplification need. More than half of the respondents agreed that equipment/facilities management, miscellaneous jobs, service staff supervision, and service line supervision could be allocated to other school departments. Conclusions: School nutrition teachers should invest more time and resources on their core job duties such as nutrition management, production management, food safety management, and nutrition education for providing quality foodservice and nutrition education. To reflect the environmental changes of school foodservice, a reasonable staffing index of school nutrition teachers needs to be developed. In addition, hiring an assistant or implementing school nutrition teacher internship programs can be useful to reduce workloads of the nutrition teachers.

• Research in Community and Public Health Nursing
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• v.14 no.2
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• pp.287-298
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• 2003

The purpose of the study was to develop an integrated prevention program to strengthen elders self-care capability and to examine its effectiveness on their psychological condition. This study used one group pre- and post-test design. Subjects were 85 elderly residents (over 65 years of age) who lived alone, and received free basic medical care and social welfare services in a rural community in Korea. Subject eligibility criteria for this study were to an elders who 1) is not currently taking any anti-depressant medication 2) is able to communicate, and 3) agrees to participate in this study. The integrated program was composed of horticulture, reminiscence, and friendship activities. Twelve sessions were provided for 12 weeks in community-based partnerships to achieve better outcomes. The intervention was case-managed by a public health nurse and aided by six volunteers. The main outcome variable was depression, which was assessed by using 15 items selected from the Geriatric Depression Scale-short form Korean version. Socio-demographic characteristics, functional status, and satisfaction with social support were used as covariates. Results showed that there was a significant intervention effect at post-intervention time point compared to pre-intervention time point(E.S. 0.94). Multiple linear regression analysis showed significant interaction effects between intervention and satisfaction with social support. These findings must be interpreted within the context that an effects of an integrated program could be more synergistically increased when social support factor is considered in the program. A community-based integrated prevention program of depression is effective for vulnerable rural elderly. It is suggested that randomized controlled trials within community setting for better methodological strength as well as multi-level outcomes on community need to be conducted in future.

• Journal of Physiology & Pathology in Korean Medicine
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• v.26 no.5
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• pp.760-764
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• 2012

The purpose of this study was to report the effect of GwiBiTang and gagambang, acupuncture and moxibustion on essential tremor. This study was made on 6 cases that were treated in the OO University Oriental Medicine hospital and evaluated tremor using Visual Analogue Scale(VAS). GwiBiTang was one of the most generally used herbal medication, diagnosed as dual deficiency of the heart-spleen. In five patients out of six, VAS scores decreased. Two patients's scores decreased to 0 point. Three patients's score decreased to 2, 5 and 6 point, respectively. One patient was maintained on these Korean medical treatment for 26 days with no decrease of VAS score in tremor. The overall therapeutic effect was "markedly improved" in 2 (33.3%), "moderately improved" in 3 (50%), "poor" in 1 (16.7%). The results obtained this study suggest that GwiBiTang and gagambang, acupuncture and moxibustion might be effective in the treatment of tremors. Future studies will be required to ascertain the effect of GwiBiTang.