• Korean Journal of Environmental Agriculture
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• v.27 no.2
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• pp.111-119
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• 2008

This study was conducted to evaluate water quality and pollutant loads on small agricultural watershed in Jeonbuk province. The EC level of investigated watershed ranged from 0.07 to 0.52 dS/m, BOD level ranged from 0.1 to 5.0 mg/L, and $COD_{Cr}$ level ranged from 0.6 to 17.7 mg/L. As above, contents of water quality indicators covered wide range, but each indicator was alike in mean content every other year. The contents of EC, $Ca^{2+},\;Mg^{2+},\;K^+\;and\;Na^+$ were decreased in rainy season, but the contents of BOD, $COD_{Cr},\;COD_{Mn}$, T-N and T-P were not greatly different as compared to dry season. And high content of SS showed substantial sediments near the surface flow out and influence on water system in rainy season. The pollutant loads measured in terminal of watershed were $9.6{\sim}757.9$ kg/day for BOD, $51.2{\sim}1418.5$ kg/day for T-N and $0.3{\sim}44.7$ kg/day for T-P. The pollutant loads of BOD, T-N and T-P in rainy season increased several times as compared to dry season. In rainy season, watershed with more than 30% in the proportion of paddy field to land showed relatively low discharge and pollutant loads in comparison to watershed with less than 30%. The discharge of watershed in rainy season increased 5.7times compared with the dry season in watershed with less than 30% in the proportion of paddy field to land, whereas was only 2.3times in watershed with more than 30%. The correlation coefficient($R^2$) of regression between discharge and pollutant loads of T-N were higher than those of BOD and T-P.

• The Korean Journal of Rehabilitation Nursing
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• v.9 no.2
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• pp.109-116
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• 2006

Purpose: This study is a descriptive research in which the pathological syndromes of the schizophrenic patients in the community mental health centers, the degrees of the insights, and the correlations between them were examined. Method: The subjects included 114 SPR pt. people who were enrolled in community mental health centers located in D City. The research was conducted during the period from Aug. 1st, 2002 to Jul. 30th, 2004. The instruments were PANSS developed by Kay(1987) and SUMD developed by Amador(1993). Results: Among the pathological syndromes, positives ones were $12.64{\pm}3.80$ on the average, negative ones were $32.00{\pm}5.36$, and general pathological syndromes were $30.50{\pm}6.24$. In the evaluation of the insights, the mean score was $11.81{\pm}5.09$. There were some significant correlations between positive syndromes and general pathological ones (r=.572, p=.000), and negative syndromes and general pathological ones(r=.262, p=.029), while there was no significant correlation between the insights and the sub-measures of general pathological syndromes. Conclusion: Therefore, the schizophrenic patients taking advantage of the community mental health centers have more negative syndromes than those in hospitalized, and rehabilitation programs are needed to help them continuously. And the further study of the correlations between the pathological syndromes and the degrees of the insights are required, and still, it should be analyzed what effects the insight acquirement brings about to the improvements of the pathological syndromes after the application of the insight-oriented programs.

• The Journal of Korean Physical Therapy
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• v.10 no.2
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• pp.13-32
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• 1998

A questionaire was conducted to obtain ran satisfactions in information of the 325 disabled persons among the total 9,314 handicapped people in Taejon area, and was surveyed during the period of June 1 to August 31, 1997. The results are as follows: 1. Among the studied disabled persons, $54.5\%$ of male, and $45.5\%$ of female. 2. Before disabled in occupation, $32.0\%$ of out of work group were high, $6.5\%$ of farm, student group were low. Before disabled in occupation by gender, male group is $29.9\%$ of out of work group were high, $0.6\%$ of housework group were low. female group is$34.5\%$ of out of work group were high, $4.7\%$ of student group were low(P<0.001). 3. After disabled in occupation, $75.1\%$ of out of work group wert high, $10.8\%$ of in working group were low. After disabled in occupation by gender, male group is $87.6\%$ of out of work group were high, $1.7\%$ of housework group were low. female group is $60.1\%$ of out of work group were hgh, $10.8\%$ of in working group were low(P<0.001). 4. Medical security status, $64.9\%$ of medical aid group wore high, $35.1\%$ of medical insurance group were low. Medical security status by gender, male group is $71.2\%$ of medical aid group were high, $28.8\%$ of medical insurance group were Iew. female group is $57.4\%$ of medical aid group wan high, $42.6\%$ of medical insurance were low(P<0.01). 5. Disabled record status, $68.6\%$ of record group were high, $31.4\%$ of non group were low. Disabled record status by gender, male group is $78.5\%$ of record group were high, $21.5\%$ of non record group were low. female group is $56.6\%$ of record group were high, $43.4%$ of non record group were low(P<0.001). 6. Disabled duration status, $42.2\%$ of loss than 9 year group were high, $10.2\%\;of\;20-29,\;30-39$ year group were low. Disabled duration status by gender,'male group is $44.6\%$ of less than 9 year group were high, $6.2\%$ of 20-29 year group wert low. female group is $39.2\%$ of less than 9 year were high, $39.2\%$ of 30-39 year group were low (P<0.05). 7. Cause of disabled status, $26.5\%$ of other group, $23.7\%$ of congenital group were high. $9.2\%$ of unknown group, $6.8\%$ of industry accident, $2.5\%$ of drug poisoning group were low. Cause of disabled status by gender, male group is $27.7\%$ of other group, $23.7\%$ of congenital group were high, $2.3\%$ drug poisoning group were low. female group is $25.0\%$ of other group, $20.9\%$ of congenital group were high, $2.5\%$ of drug poisoning group were low (P<0.001). 8. Disabled type status, $19.4\%$ of double disabled group were high, $2.2\%$ of muscle paralysis group were low. Disabled type status by gender, male group is $22.0\%$ of double disabled group were high, $2.3\%$ of muscle paralysis group were low. female group is $23.3\%$ of rheumatism group were high, $0.7\%$ of amputation group were low(P<0.001). 9. Smoking status, $73.2\%$ of non smoking group were high, $26.8\%$ of smoking group were low. Smoking status by gender, male group is $59.9\%$ of double non smoking group were high, $40.1\%$ of Smoking group were low, female group is $89.2\%$ of non smoking group were high, $10.8\%$ of smoking group were low(P<0.001). 10. Drinking status, $80.0\%$ of non drinking group were high, $20.0\%$ of drinking group were low. Drinking status by gender, male group is $72.3\%$ of non drinking group were high, $27.7\%$ of drinking group were low. female group is $89.2\%$ of non drinking group were high, $10.8\%$ of drinking group were low(P<0.001). 11. Stress level status, $52.9\%$ of high stress group were high, $1.8\%$ of very severe stress group were low. Stress level status by gender, male group is $50.8\%$ of high stress group were high, $2.3\%$ of very severe stress group were low. female group is $55.4\%$of high stress group were high, $1.4\%$ of very severe stress group were low. 12. Heed status, $28.0\%$ of economic support were high, $4.6\%$ of speech therapy, brace group were low. Need status by Sender, male group is $2i2\%$ of economic support group were high, $4.5\%$ of bracegroup were low. female group is$27.7\%$ of economic support group were high, $3.4\%$ of speech therapy group were low. 13. Care satisfaction comparision, 3.09, 0.55 point of IBR, 4.01, 0.45 point of CHR(P<0.001). 14. The variables which had positive correlation with IBR were gender(r=0.1406, P<0.01), age(r=0.1872, p<0.001), economic level(r=0.1246, P<0.05), disabled record(r=0.1137, P<0.05), education level(r=-0.1122. p<0.05). 15. The variables which had positive : correlation with CBR were gender(r=0.1613, P<0.01), age(r=0.2255, P<0.001). list of family(r=0.12i3, P<0.01), disabled record(r=0.1273, P<0.05). education level(r=-0.1294, P<0.01).

• The Bulletin of The Korean Astronomical Society
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• v.46 no.1
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• pp.34.4-35
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• 2021

We present the TESS photometry and our high-resolution spectra of the semi-detached Algol EW Boo. For an orbital period study, we collected all available times of minima including ours for the last 30 years. It is found that the eclipse timing variation of the system can be represented by a periodic oscillation of 18.5±1.0 yr plus a secular period increase with a rate of [dP/dt]_orb=-6(±3)×10^-8 d yr^-1. From our observed spectra, the effective temperature of the primary star was determined to be T_eff,1=8560±118 K. From a simultaneous analysis of the TESS light and our double-lined radial velocity curves, the absolute masses, radii, and luminosities are M₁=2.30±0.07M_⊙, M₂=0.38±0.01M_⊙, R₁=1.92±0.02 R_⊙, R₂=1.27±0.01 R_⊙, L₁=1.92±0.02 L_⊙, and L₂=0.752±0.007 L_⊙, respectively. Multiple frequency analyses were carried out for the light residuals after subtracting the binary star model. We detected a total of 75 frequencies in the region of 16.50-104.8 day-1. Our results demonstrate that the more hotter primary star of EW Boo is a δ Sct pulsator by considering its position in the δ Scuti region of the Cepheid instability strip and pulsational characteristics.

• Research in Community and Public Health Nursing
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• v.15 no.3
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• pp.438-449
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• 2004

Purpose: The purpose of this study was to examine the levels of and relationships between physical health status, depression and health behaviors and the factors affecting health behavior in the elderly. Method : The subjects of this study were 118 elderly people aged over 60 living in urban and rural areas. The data were collected by interview through questionnaires from December 1. 2003 to January 30, 2004. The data were analyzed by descriptive statistics. t-test. ANOVA. Pearson correlation coefficient, and stepwise multiple regression. Results: The results of the study are as follows. 1. The mean score of the physical health status was 63.88 out of a total of 78 and the mean score of depression 42.71 out of 80. The mean score of health behaviors was 126 out of 165 and 3.83 point out of 5. In terms of sub-domains of health behaviors, emotional areas showed the highest mean score (3.98). 2. There was a significant positive correlation between health behaviors and the physical health status (r=.491, P<.001), while there was a significant negative correlation between depression and physical health status(r=.626, P<.001), and depression and health behavior(r=.784. P<.001). 3. Stepwise multiple regression analysis revealed that the most powerful predictor of health behaviors was psychological health. namely depression. A combination of depression. perceived health status and religion accounted for 65% of the variance in health behaviors of the elderly. Conclusion: From the results of the study, we recommend that the development of a nursing intervention program for the health behaviors including the factors affecting the elderly. It suggests the need to focus more on psychological and spiritual health and the development of nursing interventions for health promotion among older adults.

• Nutrition Research and Practice
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• v.13 no.3
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• pp.205-213
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• 2019

BACKGROUND/OBJECTIVES: Myocardial infarction (MI) is caused by extensive myocardial damage attributed to the occlusion of coronary arteries. Our previous study in a rat model of ischemia/reperfusion (I/R) demonstrated that administration of arabinoxylan (AX), comprising arabinose and xylose, protects against myocardial injury. In this study, we undertook to investigate whether psyllium seed husk (PSH), a safe dietary fiber containing a high level of AX (> 50%), also imparts protection against myocardial injury in the same rat model. MATERIALS/METHODS: Rats were fed diets supplemented with PSH (1, 10, or 100 mg/kg/d) for 3 d. The rats were then subjected to 30 min ischemia through ligation of the left anterior descending coronary artery, followed by 3 h reperfusion through release of the ligation. The hearts were harvested and cut into four slices. To assess infarct size (IS), an index representing heart damage, the slices were stained with 2,3,5-triphenyltetrazolium chloride (TTC). To elucidate underlying mechanisms, Western blotting was performed for the slices. RESULTS: Supplementation with 10 or 100 mg/kg/d of PSH significantly reduces the IS. PSH supplementation (100 mg/kg/d) tends to reduce caspase-3 generation and increase BCL-2/BAX ratio. PSH supplementation also upregulates the expression of nuclear factor erythroid 2-related factor 2 (NRF2), and its target genes including antioxidant enzymes such as glutathione S-transferase mu 2 (GSTM2) and superoxide dismutase 2 (SOD2). PSH supplementation upregulates some sirtuins ($NAD^+$-dependent deacetylases) including SIRT5 (a mitochondrial sirtuin) and SIRT6 and SIRT7 (nuclear sirtuins). Finally, PSH supplementation upregulates the expression of protein kinase A (PKA), and increases phosphorylated cAMP response element-binding protein (CREB) (pCREB), a target protein of PKA. CONCLUSIONS: The results from this study indicate that PSH consumption reduces myocardial I/R injury in rats by inhibiting the apoptotic cascades through modulation of gene expression of several genes located upstream of apoptosis. Therefore, we believe that PSH can be developed as a functional food that would be beneficial in the prevention of MI.

• Korean Journal of Metals and Materials
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• v.46 no.10
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• pp.691-699
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• 2008

Electrochemical characteristics of Ti-30Ta-xZr alloys coated with HA/TiN by using magnetron sputtering method were studied. The Ti-30Ta containing Zr(3, 7, 10 and 15wt%) were 10 times melted to improve chemical homogeneity by using a vacuum furnace and then homogenized for 24hrs at $1000^{\circ}C$. The specimens were cut and polished for corrosion test and coating, and then coated with HA/TiN, respectively, by using DC and RF-magnetron sputtering method. The analyses of coated surface and coated layer were carried out by using optical microscope(OM), field emission scanning electron microscope(FE-SEM) and X-ray diffractometer(XRD). The electrochemical characteristics were examined using potentiodynamic (-1,500 mV~ + 2,000 mV) and A.C. impedance spectroscopy(100 kHz ~ 10 mHz) in 0.9% NaCl solution at $36.5{\pm}1^{\circ}C$. The microstructure of homogenized Ti-30Ta-xZr alloys showed needle-like structure. In case of homogenized Ti-30Ta-xZr alloys, a-peak was increased with increasing Zr content. The thickness of TiN and HA coated layer showed 400 nm and 100 nm, respectively. The corrosion resistance of HA/TiN-coated Ti-30Ta-xZr alloys were higher than that of the non-coated Ti-30TaxZr alloys, whic hindicate better protective effect. The polarization resistance($R_p$) value of HA/TiN coated Ti-30Ta-xZr alloys showed $8.40{\times}10^5{\Omega}cm^2$ which was higher than that of non-coated Ti-30Ta-xZr alloys.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.8
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• pp.124-134
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• 2017

The purpose of this study was to investigate the MBTI personality type, emotional intelligence, and stress coping strategies of nursing students and to examine the influence of these factors on their level of college adjustment.The subjects were 267 nursing students who are located in Chonnam city. The survey was conducted from March 6th to March 31st, 2017. The level of college adjustment showed a close correlation with the emotional intelligence(r=.29, p<.001) and stress coping strategies(r=.27, p<.001), and the level of MBTI personality type was not statistically insignificant in the nursing students. It was found that the effect of the emotional intelligence and stress coping strategies on the college life adjustment was 17.5%(F=8.03, p<.001). According to the results of this study, it is necessary to develop a systematic management program to integrate the educational curriculum and extra-curricular activities(in order to enhance the) emotional intelligence and stress coping strategies in nursing students. In addition, the type of psychological function and psychological temperament of the MBTI personality type were found not to have influenced the level of college adaptation of the nursing students and this should be confirmedin a large scale sample.

• Journal of Korean Academy of Fundamentals of Nursing
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• v.23 no.1
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• pp.32-41
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• 2016

Purpose: This study was done to develop a measure resilience in nurses. Method: Forty preliminary items were extracted from a view of the literature on concept analysis and scale development, and from in-depth interviews with nurses. These items were examined for content validity, reliability and validity. The scale was verified with 496 nurses working in three advanced general hospitals located in Seoul and Gyeonggido. Results: Factor analysis resulted in the creation of the final scale, which consisted of 30 items that were grouped into 5 factors: dispositional pattern, relational pattern, situational pattern, philosophical pattern and professional pattern. The explanatory variance was 56.25%. The reliability of the scale was Cronbach's ${\alpha}=.95$. Correlation of the scale with the Korean version of the Connor-Davidson Resilience Scale (K-CD-RISC), established its construct and concurrent validity (r=.74, p<.001). Conclusion: The resilience scale for nurses was found to have reliability and validity, and as developed in this study reflects nurses' disposition and was confirmed as a basis for developing and evaluating programs to increase nurses' resilience.

• Research in Community and Public Health Nursing
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• v.13 no.2
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• pp.354-362
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• 2002

Objectives: This study was conducted to examine the relationships among perceived life stress, self-esteem, and depression in middle-aged women. Methods: Data were collected from March 30 to May 25, 2000. The study subjects were 123 middle-aged women living in Pusan. The instruments used for this study were the Perceived Life Stress scale developed by Lee (1984), based on the original scale designed by Yu, et al. (1994), Self-esteem scale developed by Rho, et al. (1997), and the Depression scale developed by Ahn (1988). For data analysis, the SPSS PC+ was utilized, by which frequency and percentage, mean and standard deviation, t-test, ANOVA, Sheffe's test and Pearson's correlation coefficients were examined. The reliability of the instruments were tested by Cronbach's $\alpha$, showing the internal consistency of 0.7328 for the self-esteem scale. and 0.8987 for the depression scale. Results: 1) The results showed a relatively low perceived life stress score in the middle-aged women with a mean and standard deviation of 363.18 and 72.92 (range: .00 - 1877.38). 2) The results showed a relatively high self-esteem score in the middle-aged women with a mean and standard deviation of 29.77 and 5.06 (range: 10 - 40). 3) The results showed a relatively high depression score in the middle-aged women with a mean and standard deviation of 39.46 and 9.38 (range: 0 - 61). 4) There were no statistically significant differences in perceived life stress by demographic related factors. 5) There were statistically significant differences in self-esteem by health status (F=8.930, p= .000) and economic status (t=4.792, p= .010). 6) There were statistically significant differences in depression by age (F=3.770, p= .0261). education (F=4.850, p= .003) and regularity of menstrual cycle (F=13.180, p= .000). 7) There was no statistically significant correlation between perceived life stress, and self-esteem in the middle-aged women (r=-.077, p= .399). 8) There was no significant correlation between perceived life stress. and depression in the middle-aged women (r= .010, p= .916). 9) There was a significant negative correlation between self-esteem, and depression in the middle-aged women (r=- .359, p= .000). Conclusion: Higher self-esteem was related to a lower depression status. Therefore, it is necessary to elevate the level of self-esteem in order to reduce the level of depression in middle-aged Korean women.