• The Bulletin of The Korean Astronomical Society
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• v.36 no.2
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• pp.107.2-107.2
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• 2011

Most astrophysical systems are turbulent and magnetized. Magnetic field plays an important role in the dynamics of astrophysical system and influence all of properties of astrophysical system. Therefore, information of magnetic field is very important to understand properties of astrophysical system. One way to obtain information of magnetic field is to use rotation measure. Mean strength of the magnetic field along the line of sight can be estimated from RM/DM, where RM is rotation measure and DM is dispersion measure. For the estimation of magnetic field strength using RM/DM, the correlation between density and magnetic field. When there is no correlation between density and magnetic field the relation gives exact mean magnetic strength. But if the positive correlation, it overestimates the magnetic field strength, while if the correlation is negative, it underestimate the magnetic field strength. In general, the ICM (intracluter medium) and the ISM (interstellar medium) cases, viscosity has a value greater than magnetic diffusion. We performed compressible MHD turbulence simulations and we studied correlation between density and magnetic field in different values of viscosity and magnetic diffusion. In most cases, we found weak or negative relations between the density and magnetic fields. We discuss implication of our results.

• Korean journal of food and cookery science
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• v.33 no.2
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• pp.190-197
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• 2017

Purpose: The purpose of this paper was to analyze the physicochemical properties related to peeling rate of Korean chestnut. Methods: Analyses were carried out for weight, thickness, polyphenol, amino acid and peeling ratio for Korean chestnut. The correlation between these physicochemical components and peeling ratio of chestnut was measured. Results: The average of thickness for inner shell and outer shell was 0.66 mm and 0.93 mm, respectively. The average peeling ratio was 77.51%. A significant negative correlation was found between peeling ratio and thickness of the inner shell ($r=-0.80^{***}$, p<0.001). Analysis for the polyphenol composition of inner shell by HPLC was carried out and peaks 2 ($r=-0.56^*$, p<0.05), 11 ($r=-0.68^{**}$, p<0.01), 14 ($r=-0.52^*$, p<0.05), 28 ($r=-0.66^{**}$, p<0.01) showed a significant negative correlation with the peeling ratio. Conclusion: Thickness of chestnut inner shell was determined as the most influential factors of peeling.

• Journal of Korean Academy of Nursing Administration
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• v.11 no.3
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• pp.265-273
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• 2005

Purpose: This study was to investigate the degree and pattern of learning organization and MBTI personality type in clinical nurses. Methods: The participants were 685 nurses working in the 8 general hospitals located in Seoul and Incheon. The data were collected by self-reporting questionnaires from April 1 to August 30, 2004. The data were analyzed using SAS program for descriptive statistics and Pearson's correlation coefficient. Results: The most frequent identified personality type was ISTJ and the least identified personal types was ENFJ. In 4 preference patterns, Extroversion, Sensing, Thinking and Judgement were identified a dominant index in each categories. The mean score of learning organization was 3.47 and the mental model was got the highest score. The EI index had a significant positive correlation with personal mastery. However the TF index had a negative correlation with personal mastery, systems thinking, and mental models, and also the JP index had a negative correlation with 5 learning organization sub categories. Conclusion: With these results, it was identified that the preference patterns on MBTI had the significant correlation with learning organization. So these results will be used to develop the more effective strategies to increase learning organization based on nurse's personality types.

• Korean Journal of Occupational Health Nursing
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• v.23 no.2
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• pp.106-114
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• 2014

Purpose: This is a descriptive correlation study to identify self-esteem, job satisfaction, and turnover intention among ship-building supply workers. Methods: The subjects were 199 ship-building supply workers at two small & medium-sized ship-building supply companies in K city. The data were collected from March 1st through 31st, 2013. The collected data were analyzed using the SAS program through t-test, ANOVA, Scheff$\acute{e}$ test, and Pearson's correlation coefficients. Results: There was a positive correlation between self-esteem and job satisfaction (r=.29, p<.001), a negative correlation between self-esteem and turnover intention (r=-.20, p<.001). Also there was a negative correlation between job satisfaction and turnover intention (r= -.58, p<.001). Conclusion: This finding identified that the self-esteem and job satisfaction were an important variable related to the turnover intention. Therefore, organizational managers need to develop strategies for improving workers' self-esteem and job satisfaction to prevent and decrease worker's turnover intention.

• Journal of Ginseng Research
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• v.4 no.1
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• pp.55-64
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• 1980

The distribution pattern of mineral nutrients, among various Parts of Korea ginseng (Panax ginseng C.A. Meyer) was investigated to understand ginseng nutrition by simple correlation analysis. Five·year old ginseng plants grown under four different nutritional environments were sampled and separated into leaf, petiole, stem, rhizome, cortex and epidermis of tap foot, central part of tap root, cortex and epidermis of lateral root, central part of lateral root, fine root in the middle of truly, for chemical analysis. Between mineral nutrients in root, N and P showed highly significant positive correlation each other and with Mg and Cu while all other elements (K, Ca, Mg, Fe, Mn, Zn, Cu, B) showed highly significant positive correlation each other. In shoot, number of mineral nutrient pairs haying significant relation was much less than in root. (Negative: P with Ca or B, K with N, Fe, Mn or Cu, Positive: N with Mg, Fe, Mn or Cu, K with Zn, Ca with Mg, Zn, or B, Fe Mn Cu each other, Mn with B.) The number of pairs having significant correlation in whole plant was approximately the same as the number in root but three of them showed significant negative correlation. The distribution pattern similarity of mineral contents among various parts was also discussed in relation to physiological significance in Korea ginseng plant.

• Journal of Korean Academy of Fundamentals of Nursing
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• v.14 no.1
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• pp.72-82
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• 2007

Purpose: The purpose of this study was to identify relationships among trait anger, life styles and physical symptoms in elderly people. Method: The participants were 348 elderly persons over 65 years of age who lived in Seoul, Geonggi Province, South Chungcheong Province and South Jeolla Province. The data were analyzed using descriptive $X^2-test$, t-test, one-way ANOVA and Pearson's correlation coefficient with SPSS win 12.0. Results: Physical symptoms of the participants correlated with trait anger and life style. Trait anger in the elderly people had a significant positive correlation to cardiovascular symptoms. Smoking showed a significantly positive correlation to alcohol drinking and cardiovascular symptoms. Regular diet showed a significantly negative correlation to general symptoms, cardiovascular symptoms and gastrointestinal symptoms. Caffeine intake significantly negative correlation to general symptom and cardiovascular symptom. Conclusion: These results suggested that elderly people with a high degree of trait anger are likely to be high in perceived physical symptoms. Therefore nursing interventions to reduce levels of trait anger and change life style should be provided for elderly people.

• Journal of Technologic Dentistry
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• v.41 no.2
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• pp.123-135
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• 2019

Purpose: This study aims to prevent Smartphone addiction and provide a basic material for intervention strategy by inquiring into the correlation between interpersonal relations competency and Smartphone addiction. Methods: This study carried out a questionnaire survey oriented to 323 people who agreed to participate in this research. For the final analysis, this study selected 298 sheets of questionnaires excluding 25 sheets with insufficient response qualities. Results: According to the results of regression analysis, significant correlation between interpersonal relations competency and Smartphone addiction level was not observed. However, according to the results of correlation analysis, the subordinate factor of Smartphone addiction "directionality of virtual world" showed a significant negative correlation with "opinion expression regarding rights or refusal" of interpersonal relations competency (p<0.05), while "withdrawal," the subordinate factor of interpersonal relations competency and Smartphone addiction displayed a negative correlation with Smartphone addiction (p<0.05). Conclusion : However, the mean of the 3DP group was within the clinical tolerance suggested by the previous researchers. Based on this, dental prosthesis fabricated by 3D printing technology is considered to be clinically acceptable.

• The Journal of Korean Medicine
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• v.25 no.4
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• pp.43-50
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• 2004

Objective : Obesity is associated with degenerative arthropathy giving stress on joints. It also amplifies loads of weight bearing joints by changing the gravity line of the body. Our aim is to investigate the correlation between obesity and lumbar lordosis in obese pre-menopausal Korean females. The hypothesis was tested that there is a correlation between obesity and lumbar lordosis. Methods : A cross-sectional evaluation of 44 Females (baseline age 30.77 ± 6.46) with BMI 31.53 ± 3.82 (kg/㎡) was done. Body composition was measured using bio-impedance analysis (BIA), and anthropometry was done by the same observer. A lateral whole spine X-ray was taken in standing position to measure the lumbar lordotic angle (LLA), Ferguson angle (FA) and lumbar gravity line (LGL). A Pearson correlation was used to measure the correlation between obesity and lumbar lordosis (SPSS 10.0 for windows). Results : Body mass index (BMI kg/㎡) had a negative relationship with LLA((equation omitted)=-0.469), FA((equation omitted) =-0.347) and LGL((equation omitted)=-0.389). Body fat rate had a negative relationship with LLA only(γ=-0.385). Waist circumference had a negative relationship with LLA((equation omitted)=-0.345) and LGL((equation omitted)=-0.346). WH ratio had no relationship with lumbar lordosis. Conclusion : These data show that obesity is related to mechanical structures, such as lumbar lordosis. BMI was the most useful index, which reflects a change of mechanical structure of lumbar, more than other variables in this study.

• Nutrition Research and Practice
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• v.4 no.3
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• pp.215-221
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• 2010

This study was performed to analyze the relationship among sebum hydration content of the skin and nutritional intake, serum antioxidant minerals and antioxidant enzymes, and lipid peroxide concentration in 50 female subjects in their 20s. The skin type was divided into Dry Skin, Mixed Skin, and Oily Skin, and the dry skin group was 14%, the mixed skin group was 56%, and the oily skin group was 30% of all subjects. The average age of the subjects was $20.54{\pm}1.43$ years and BMI was 20.66. The average sebum content in each group was in the order of T-zone>forehead>chin>cheek. In case of the T-zone, a significant difference between the dry skin group and the oily skin group was observed, suggesting that the area is most sensitive to sebum content by skin type. Significant differences were not observed in energy and nutrient intakes by skin type. Serum concentrations of antioxidant minerals such as copper, manganese, zinc and selenium were not significantly different among the groups, but the dry skin group tended to be higher than the oily skin group. Serum catalase was significantly higher in the oily skin group (P < 0.05), and MDA was significantly higher in the mixed skin group (P < 0.05). The hydration of the cheek and serum zinc showed a negative correlation, and the sebum content of the cheek and GPx showed a significant negative correlation. The hydration of the forehead and serum copper showed a significant negative correlation, and the hydration of the forehead and GPx showed a significant positive correlation. The hydration of the chin and serum SOD showed a significant positive correlation. With these results, it is considered that the basic condition of nutritional status can affect the skin health.

• Journal of Korean Academy of Nursing
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• v.28 no.3
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• pp.801-809
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• 1998

This study was carried out the group communication program which I had composed of using the Satir's communication family theory and skills. The purpose of this study was to investigate the effects on the dysfunctional communication self-esteem and depression, executed this program for the mothers group with caring the mental disorders. and then for the test of some hypotheses it was devided two groups ; the experimental group(n=20) and control group(n=25). In the control group they were learned two session family education program in the psychiatric clinics of Pusan National University Hospital and in the experimental group they had experienced during the 10 session by the group communication program. In the methods of the statistics on this datas, it was to statistics X²test for the comparison between the experimental group and control group with general characteristics. The effect of the Group Communication Program was to analyse ANCOVA between pre-post test on the disfunctional communication, self-esteem and depression in the control group and experimental group. The conclusions were derived from the results and test of hypothesis as followings ; 1) The results were tested the differentiation between the experimental and control group, and the pre-post test in the experimental group with dysfunctional communication self-esteem and depression. Some hypothesis were tested and supported as followings : It was supported that the level of dysfunctional communication of the experimental group would be lower than the control group (Hypothesis 1) It was supported that the level of self-esteem of the experimental group would be higher than the control group (Hypothesis 2). It was supported that the level of depression of the experimental group would be lower than the control group (Hypothesis 3). 2) The relation of the dysfunctional communication with the self-esteem was presented negative correlation and with the depression was not correlation. The relation of the self-esteem with the depression was presented significantly negative correlation. The relation of the sacrificuny pattern of dysfuntional communication with the self-esteem was presented negative correlation and with the depression positive correlation.